HomeMy WebLinkAbout05-05-2015 SS2 Potable Water Distribution System Operations Master Plan - Council Reading FilePrepared by
C ity San L ui S O bi S p O
D raft -f inaL Water Ma S ter p L an
apriL 2015
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CITY OF SAN LUIS OBISPO
DRAFT‐FINAL WATER MASTER PLAN
APRIL 2015
City Council
Mayor Jan Howell Marx
Vice Mayor John Ashbaugh
Council Member Dan Carpenter
Council Member Carlyn Christianson
Council Member Dan Rivoire
Prepared By:
____________________________________
Kari Wagner, P.E. 66026
Senior Civil Engineer
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City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
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Table of Contents
List of Tables and Figures .............................................................................................................................. v
List of Acronyms .......................................................................................................................................... vii
List of References ....................................................................................................................................... viii
1: Introduction ....................................................................................................................................... 1‐1
Purpose of the Project ........................................................................................................................... 1‐1
Authorization and Scope of Work .......................................................................................................... 1‐1
Acknowledgements ................................................................................................................................ 1‐2
2: Water Distribution System Overview ................................................................................................ 2‐1
Water Distribution System Background ................................................................................................ 2‐1
Water Distribution Zones ................................................................................................................... 2‐1
Operation and Maintenance Problem Areas ......................................................................................... 2‐5
3: Study Area Characteristics ................................................................................................................. 3‐1
Land Use ................................................................................................................................................. 3‐1
Future Development .............................................................................................................................. 3‐1
Population .............................................................................................................................................. 3‐1
4: Water Demand ................................................................................................................................... 4‐1
Historical Water Demand ....................................................................................................................... 4‐1
Unaccounted for Water ..................................................................................................................... 4‐1
Water Demand Categories ................................................................................................................. 4‐1
Hydraulic Demand Parameters .............................................................................................................. 4‐2
Future Water Demands ......................................................................................................................... 4‐3
5: Water Supply Overview ..................................................................................................................... 5‐1
Introduction ........................................................................................................................................... 5‐1
Salinas Reservoir ................................................................................................................................ 5‐1
Whale Rock Reservoir ........................................................................................................................ 5‐1
Nacimiento Reservoir ......................................................................................................................... 5‐1
Groundwater ...................................................................................................................................... 5‐2
Recycled Water .................................................................................................................................. 5‐2
6: Water Storage .................................................................................................................................... 6‐1
Existing Water Storage Facilities ............................................................................................................ 6‐1
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Existing Storage Analysis ........................................................................................................................ 6‐1
Un‐useable Storage ............................................................................................................................ 6‐1
Emergency Storage ............................................................................................................................ 6‐1
Fire Storage ........................................................................................................................................ 6‐1
Operational Storage ........................................................................................................................... 6‐2
Storage Summary ............................................................................................................................... 6‐2
Existing Storage Recommendation Overview .................................................................................... 6‐3
Future Storage Analysis ......................................................................................................................... 6‐3
Emergency Storage ............................................................................................................................ 6‐4
Fire Storage ........................................................................................................................................ 6‐4
Operational Storage ........................................................................................................................... 6‐4
Storage Summary ............................................................................................................................... 6‐4
Future Storage Recommendation Overview ..................................................................................... 6‐5
Operation and Maintenance Storage Recommendations ..................................................................... 6‐5
Regulatory Compliance .......................................................................................................................... 6‐6
Source Water ..................................................................................................................................... 6‐7
Treatment .......................................................................................................................................... 6‐7
Disinfection ........................................................................................................................................ 6‐7
Distribution System ............................................................................................................................ 6‐7
Overall Storage Recommendations ....................................................................................................... 6‐7
7: Water Pump Stations ......................................................................................................................... 7‐1
Summary of Pump Station Recommendations ...................................................................................... 7‐1
Pump Stations ........................................................................................................................................ 7‐1
Alrita Pump Station ............................................................................................................................ 7‐1
Bishop Pump Station .......................................................................................................................... 7‐2
Bressi Pump Station ........................................................................................................................... 7‐2
Ferrini Pump Station .......................................................................................................................... 7‐2
McCollum Pump Station .................................................................................................................... 7‐2
Reservoir Canyon Pump Station ........................................................................................................ 7‐2
Rosemont Pump Station .................................................................................................................... 7‐2
Transfer Pump Station ....................................................................................................................... 7‐3
Hydraulic Evaluation .............................................................................................................................. 7‐3
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Alrita Pump Station ............................................................................................................................ 7‐3
Bishop Pump Station .......................................................................................................................... 7‐4
Bressi Pump Station ........................................................................................................................... 7‐4
Ferrini Pump Station .......................................................................................................................... 7‐4
McCollum Pump Station .................................................................................................................... 7‐5
Reservoir Canyon Pump Station ........................................................................................................ 7‐5
Rosemont Pump Station .................................................................................................................... 7‐5
Transfer Pump Station ....................................................................................................................... 7‐6
Physical Evaluation ................................................................................................................................. 7‐6
Bishop Pump Station .......................................................................................................................... 7‐7
Bressi Pump Station ........................................................................................................................... 7‐8
Ferrini Pump Station .......................................................................................................................... 7‐9
McCollum Pump Station .................................................................................................................... 7‐9
Reservoir Canyon Pump Station ...................................................................................................... 7‐10
8: Water Distribution System Analysis ................................................................................................... 8‐1
Water Distribution System ..................................................................................................................... 8‐1
Pressure Reducing Valves ...................................................................................................................... 8‐1
Water System Design Requirements ..................................................................................................... 8‐1
Water Model Development ................................................................................................................... 8‐3
Existing System Performance ................................................................................................................. 8‐4
Future System Performance ................................................................................................................ 8‐13
Specific Plan Areas ........................................................................................................................... 8‐13
9: Summary of Recommendations ......................................................................................................... 9‐1
Recommended Master Plan Improvement Projects.............................................................................. 9‐1
Recommended Consolidations .......................................................................................................... 9‐1
First Priority Master Plan Improvement Projects .................................................................................. 9‐2
Second Priority Master Plan Improvement Projects ............................................................................. 9‐3
Third Priority Master Plan Improvement Projects ................................................................................. 9‐3
Master Plan Improvement Project Ranking and Costs .......................................................................... 9‐3
10: Future Water Distribution System Overview ............................................................................... 10‐1
Water Distribution Zones ..................................................................................................................... 10‐1
Specific Plan Areas ............................................................................................................................... 10‐1
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11: Appendix A: Pump Curves ............................................................................................................ 11‐1
12: Appendix B: Pump Station Evaluation ......................................................................................... 12‐1
13: Appendix C: Fire Hydrant Test Results ......................................................................................... 13‐1
14: Appendix D: Specific Plan Water Distribution System Layout Exhibits ........................................ 14‐2
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List of Tables and Figures
Table 2‐1. Distribution Zone Summary ...................................................................................................... 2‐6
Table 2‐2. Proposed Operation and Maintenance Master Plan Improvement Projects .......................... 2‐7
Figure 2‐1. Water Distribution Zones......................................................................................................... 2‐8
Figure 2‐2a. Hydraulic Profile ..................................................................................................................... 2‐9
Figure 2‐2b. Hydraulic Profile .................................................................................................................. 2‐10
Table 3‐1. Existing Land Use Designations ................................................................................................. 3‐3
Table 3‐2. Housing Units by Zone ............................................................................................................. 3‐4
Figure 3‐1. Land Use Diagram .................................................................................................................... 3‐5
Table 4‐1. Summary of Historical Water Production ................................................................................. 4‐4
Table 4‐2. Existing Water Demand Factors ................................................................................................ 4‐4
Table 4‐3. Title 22 Minimum Water System Peaking Factors .................................................................... 4‐4
Table 4‐4. Recommended Water System Peaking Factors by Zone .......................................................... 4‐5
Table 4‐5. Existing Water System Demands1 ............................................................................................. 4‐5
Table 4‐6. Future Water Demand Factors per the 2014 LUCE Update ...................................................... 4‐5
Table 4‐7. Future Water System Demands per the 2014 LUCE Update1 ................................................... 4‐6
Table 6‐1. Summary of the Existing Water Storage Facilities1 ................................................................... 6‐9
Table 6‐2. Existing Emergency Storage Recommendations ..................................................................... 6‐10
Table 6‐3. Existing Fire Storage Recommendations ................................................................................. 6‐11
Table 6‐4. Existing Operational Storage Recommendations ................................................................... 6‐12
Table 6‐5. Existing Storage Summary ....................................................................................................... 6‐13
Table 6‐6. Future Emergency Storage Recommendations ..................................................................... 6‐14
Table 6‐7. Future Fire Storage Recommendations .................................................................................. 6‐14
Table 6‐8. Future Operational Storage Recommendations ..................................................................... 6‐15
Table 6‐9. Future Storage Summary ....................................................................................................... 6‐16
Table 7‐1. Pump Station Characteristics Summary .................................................................................. 7‐11
Table 7‐2. Pump Station Summary .......................................................................................................... 7‐12
Table 7‐2 Continued. Pump Station Summary ......................................................................................... 7‐13
Table 8‐2. Existing Water Main Inventory by Material ............................................................................ 8‐15
Table 8‐1. Existing Water Main Inventory by Diameter........................................................................... 8‐15
Table 8‐3. Existing Pressure Reducing Valves and Control Valves .......................................................... 8‐16
Table 8‐4. Fire Flow Requirements by Zoning ......................................................................................... 8‐17
Table 8‐5. Summary of Hydraulic Parameters and Design Criteria ......................................................... 8‐18
Table 8‐6. Modeled Hazen‐William’s “C” Factors ................................................................................... 8‐19
Figure 8‐1 thru 8‐19. Existing Water Distribution System ....................................................................... 8‐20
Figure 8‐20. Modeled Specific Plan Area Water Distribution System ..................................................... 8‐39
Table 9‐4. Unit Cost for Construction of Water Mains ............................................................................. 9‐4
Table 9‐1. First Priority Maser Plan Improvement Projects ....................................................................... 9‐5
Table 9‐2. Second Priority Master Plan Improvement Projects ................................................................. 9‐9
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Table 9‐3. Third Priority Master Plan Improvement Projects .................................................................. 9‐12
Figures 9‐1 through 9‐19. Proposed Master Plan Improvement Projects ............................................... 9‐14
Table 10‐1. Future Water Distribution Zone Summary ........................................................................... 10‐2
Figure 10‐1. Future Water Distribution Zones ......................................................................................... 10‐3
Figure 10‐2. Future Hydraulic Profile ....................................................................................................... 10‐4
Figure 10‐3. Customers Within Distribution Zone Changes ..................................................................... 10‐5
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List of Acronyms
AC Asbestos Cement
ADD Average Day Demand
AFY Acre‐Feet per Year
AWWA American Water Works Association
“C” Factor Hazen‐Williams roughness coefficient
cfs cubic feet per second
CI Cast Iron
CICL Cast Iron Concrete Lined
CIP Capital Improvement Program
City City of San Luis Obispo
DI Ductile Iron
ENR Engineering News‐Record
FRM Fluid Resource Management
GIS Geographic Information System
gal Gallon
gpcd gallons per capita per day
gpm gallons per minute
hp horse power
LUCE Land Use and Circulation Element
MG million gallon
mgd million gallons per day
MPIP Master Plan Improvement Program or Project
N/A Not Available
NFPA National Fire Protection Agency
NOAA NMFS National Oceanic and Atmospheric Administration’s National Marine
Fisheries Service
PF Peaking Factor
PHD Peak Hour Demand
Plan or WMP Water Master Plan
PRV Pressure Reducing Valve
PVC Poly‐Vinyl Chloride
SCADA Supervisory Control and Data Acquisition
SWRCB‐DDW State Water Resources Control Board – Division of Drinking Water
UAW Unaccounted‐for‐Water
UFC Uniform Fire Code
WLCC Water Loss Control Committee
WRRF Water Resource Recovery Facility
WTP Water Treatment Plant
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List of References
1. California Code of Regulations, Title 22.
2. City of San Luis Obispo, Engineering Standards, 2014.
3. City of San Luis Obispo, General Plan, Housing Element, April 2010.
4. City of San Luis Obispo, General Plan Annual Report, 2011.
5. City of San Luis Obispo, GIS Data, 2013.
6. City of San Luis Obispo General Plan Land Use & Circulation Element 2014.
7. City of San Luis Obispo, water consumption data from monthly utility billing database
(Springbrook), 2010‐2012.
8. City of San Luis Obispo, Water System Master Plan Final Report, Boyle Engineering Corporation,
October 2000.
9. McGraw Hill ENR Construction Cost Index of 9992 (April 2015)
10. Metcalf & Eddy design handbook “Wastewater Engineering, Treatment and Reuse, Fifth
Addition”, 2014.
11. National Fire Protection Agency (NFPA) 22, Standard for Water Tanks for Private Fire Protection,
2008 Edition.
12. Personal Communication with Wade Horton, Deputy Director, Water Division; and Noah Evans,
Water Distribution Supervisor.
13. Pump Curves provided by City of San Luis Obispo
14. Pump Efficiency Testing Services, 2010.
15. United States Bureau of the Census, 2010
16. Fire Hydrant Testing conducted June 2013.
17. Physical Evaluation of Pump Stations conducted by Fluid Resource Management December
2012.
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1: Introduction
The City of San Luis Obispo (City) supplies water service and fire suppression to its customers
throughout the City. As older infrastructure is replaced and new development projects are constructed,
it is the City’s goal to construct water improvements to meet the current and ultimate needs of the City.
In order to facilitate this goal, and to adequately plan for the capital resources needed to meet this goal,
the City commissioned a comprehensive Water Master Plan (Plan or WMP) that evaluates all aspects of
the water distribution system and its ability to meet current and long‐term needs of the City.
Purpose of the Project
Preparation of the Plan will assist the City in prioritizing both current and future water system needs and
set forth a mechanism for addressing those needs. The Plan does the following:
1. Addresses existing deficiencies within the water distribution system based on today’s standards
and requirements;
2. Addresses deficiencies within the water distribution system to meet future build‐out needs; and
3. Provides a prioritized list of recommendations with associated hard and soft costs to complete
the projects.
4. Aligns with the Utilities Department Strategic Long‐Range Plan and core purpose “To provide
essential services that support the community’s health, well‐being, and quality of life.”
Authorization and Scope of Work
On April 1, 2013, the City authorized Wallace Group to prepare a comprehensive Water Master Plan.
The Water Master Plan was prepared in accordance with Wallace Group’s proposal dated March 26,
2013. A summarized scope of work is as follows:
1. Kick‐Off Meeting and Facility Review: Coordinate and attend a kick‐off meeting with key Team
members and City staff. Immediately following the meeting, conduct an initial field
investigation of the City’s water tanks and pump stations to understand layouts and system
operations.
2. Existing Data Collection: Obtain from City staff relevant documents that will assist in the
preparation of the WMP including water usage and land use data.
3. GIS Data Review: Obtain GIS data from the City, including the water distribution system, water
pressure zones, and parcel data. Utilize the data for preparation of exhibits that will be part of
the Water Master Plan Update Report. Review the data received and identify discrepancies or
additional information needed in order to accurately model the water distribution system.
4. Future Land Use Review: Review the draft Land Use Element and conduct a preliminary review
of the future development and how it will be served by the City. Work with City staff to identify
the future development areas that will impact the Water Master Plan.
5. Water Use Demand Factors: Update the water use demand factors for the City’s service area,
including refinement of the per capita demands, non‐residential demands (commercial,
industrial, institutional), production and sales, production versus sales (un‐accounted for water),
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maximum day demand, peak hour demand, summer versus winter demand and other demand
factors for each zone.
6. Future Water Demands: Project future water demands for each zone based on the land use
designations provided by the City using the population and growth projections provided by the
City, and the per capita demand calculated.
7. Design Criteria: Provide recommendations for updating the City’s water system design criteria in
light of new or changed requirements and regulations (particularly SWRCB‐DDW requirements,
formerly CDPH), fire flow requirements, hydrant spacing, valve spacing, pipeline velocities and
headlosses, minimum fire flow residual pressure, overall water system pressures (high and low),
minimum pipe diameters, dead‐end mains, etc. These criteria will be the basis of our evaluation
of the hydraulic performance of the City’s water system components.
8. Water Storage Requirements: Evaluate water storage needs in regards to recommended
operational, emergency, and fire protection storage for both existing and future needs. Review
storage requirements individually for each pressure zone and from a system‐wide approach,
considering water storage transfer capabilities (redundancy) between zones.
9. Hydraulic Model Development: Prepare a new water model in WaterCAD, which will be used to
evaluate the existing and future conditions of the water distribution system. Contour data will
be from the City’s 2007 ½‐meter contour lidar data. The model will be populated with the water
demands by zone.
10. Fire Flow Testing: Identify locations to conduct fire flow testing, which will be used to calibrate
the water model.
11. Water Model Calibration and Existing Water Distribution System Evaluation: Utilize the water
model prepared and the Fire Flow Testing to calibrate the water model to match existing
conditions. Model each of the zones under current conditions for average day demand with
tanks full, peak hour demand with tanks ½ full, and fire flow conditions with tanks ¾ full.
12. Future Buildout Water Distribution System Evaluation: Evaluate the impacts of development on
the existing water distribution system based on two iterations of future Land Use scenarios.
13. Water Master Plan Update Report: Prepare a master plan improvement program (MPIP),
phased in Priority 1, 2 and 3 categories for recommended improvements, which can be used by
the City to fiscally plan over the next 15 to 20 years. The projects will be ranked for priority. The
costs for these improvements will be prepared based on Engineer's Estimates of Probable Costs,
referencing the current ENR Indices. A draft and final technical report summarizing all aspects
of this Water Master Plan Update will be prepared.
Acknowledgements
Wallace Group thanks and gratefully acknowledges the following for their efforts, involvements, input
and assistance in preparing this Water Master Plan:
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City of San Luis Obispo City Council:
Mayor Jan Howell Marx
Vice Mayor John Ashbaugh
Council Member Dan Carpenter
Council Member Carlyn Christianson
Council Member Dan Rivoire
City of San Luis Obispo City Staff:
Katie Lichtig City Manager
Carrie Mattingly Utilities Director
Aaron Floyd Deputy Director ‐ Water
Wade Horton Deputy Director – Water (Through December 2014)
Jennifer Metz Utilities Project Manager
Dave Hix Deputy Director ‐ Wastewater
Don Thomas Water Distribution System Supervisor
Dean Furukawa Water Treatment Plant Supervisor
Noah Evans Water Supply Supervisor
Mychal Boerman Water Distribution Operator
Ryan Dale Water Distribution Operator
Jerry Davis Water Distribution Operator
Marcus Henderson Water Distribution Operator
Casey Nance Water Distribution Operator
Mike Tate Water Distribution Operator
Travis Tutt Water Distribution Operator
The following Wallace Group key team members were involved in the preparation of this Water Master
Plan:
Rob Miller, PE Principal Engineer
Steven G. Tanaka, PE Director of Water Resources
Kari Wagner, PE Senior Civil Engineer
Valerie Huff, PE Senior Civil Engineer
Brett Hadley, PE Civil Engineer
A special thank‐you to Rincon Consultants Inc. for assisting with the graphics for this report.
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2: Water Distribution System Overview
Chapter 2 describes the features of the City’s water distribution system. Given that the water
distribution system is complex in nature, this chapter provides a general overview of the system. The
details regarding the various water system features are then presented in subsequent chapters. All
tables and figures are located at the end of this chapter.
Water Distribution System Background
The City owns and operates a complex water distribution system that is comprised of sixteen
distribution zones, ten potable water storage tanks, two reservoirs, five hydro‐pneumatic tanks, eight
pump stations, and 18 pressure reducing valves (PRVs). The City’s water distribution system has been
“piecemealed” over the years, which has led to a high number of zones for the relatively small
distribution system, which in‐turn requires the numerous pump stations and tanks. The pump stations
and tanks are a significant portion of the Water Division’s annual operation’s budget to cover the cost of
powering and maintaining these facilities. In addition, the high number of zones also increases the
complexity of the day‐to‐day and emergency operations. Therefore, this master plan will look at
opportunities to eliminate tanks and pump stations, and consolidate pressure zones.
Water Distribution Zones
The City’s existing distribution system consists of sixteen distribution zones with elevations ranging from
approximately 100 feet to 590 feet above sea level. The distribution zones are listed as follows:
1. Alrita 9. Highland
2. Andrews 10. Patricia
3. Bishop 11. Reservoir #1
4. Downtown 12. Reservoir Canyon
5. Edna Saddle 13. Rosemont
6. Ferrini 14. Serrano
7. Foothill 15. Slack
8. High Pressure 16. Terrace Hill
Each distribution zone is analyzed separately and is described in the following subsections. Each
subsection provides a summary of the relative size of the zone and the land uses that are served within
the zone. This information assists in providing a visual of the area served and supports the hydraulic
design parameters used throughout this report. A list of each of the distribution zones and their
defining features are presented in Table 2‐1 and are illustrated in Figure 2‐1. Figures 2‐2a and 2‐2b
provide a graphic representation of the hydraulic profile of the distribution system. This figure
illustrates how each tank and pump station hydraulically interact with one another and their
relationship to the distribution zone(s) they serve. The hydraulic profile was developed based on
information contained within the City’s 2000 Water Master Plan and the City’s GIS database.
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Alrita Zone
The Alrita Zone is a small boosted zone, less than ten acres, and includes 13 residential parcels located
at the upper end of Alrita Street. The Alrita Zone is served by the Alrita Pump Station that is fed by the
Bishop Zone. The Alrita Pump Station has two 100 gpm pumps, one 1,500 gpm pump, and two, 2,500
gallon hydro‐pneumatic tanks.
Andrews Zone
The Andrews Zone is a small sub‐zone of the High Pressure Zone, served via the San Luis/Cazadero PRV.
The zone is located northeast of San Luis High School off of San Luis Drive and Cazadero Street. The
zone is approximately 60 acres and serves 174 residential parcels. Reservoir #2 provides the Andrews
Zone with its storage requirements. If pressures drop in the Andrews Zone, water can be back‐fed, via a
check valves located at Andrews and Monterey Streets from the Reservoir #1 Zone. Reservoir #1
provides back‐up storage to the Andrews Zone during low pressure conditions or in the event the
pipeline between the Andrews Zone and the High Pressure Zone is out of service.
Bishop Zone
The Bishop Zone is approximately 385 acres and serves both residential and commercial properties
along Johnson Avenue from Lizzie Street to Tanglewood Drive. The High Pressure Zone feeds the Bishop
Zone and the 667,000 gal Bishop Tank. The Bishop Tank provides storage for the Bishop Zone. If
pressure drops in the Bishop Zone, the fire pump at the Bishop Pump station can provide additional flow
from the High Pressure Zone to the Bishop Zone. The Bishop Zone also provides supply to both the
Alrita Zone (via Alrita PS) and is a backup supply to the Terrace Hill Zone, via Kentwood/Johnson PRV.
Downtown Zone
The Downtown Zone is the City’s third largest zone covering approximately 850 acres. The Downtown
Zone encompasses the City’s core downtown region, which contains both residential and commercial
properties. The Downtown Zone does not have its own storage, thus relying on supply from the Foothill
Zone via the PRV located at Chorro/Foothill and the two PRVs at Peach/Broad. The Downtown Zone also
receives supply from the Terrace Hill Zone via the PRV located at Broad/Caudill, but typically, this PRV is
normally closed and is required to be manually opened by City Staff. The Downtown Zone provides
supply to the Edna Saddle Zone through the Madonna/Higuera PRV.
Edna Saddle Zone
The Edna Saddle Zone is the City’s largest zone spanning over 2,300 acres serving residential and
commercial properties. The Edna Saddle Zone encompasses all properties south of the intersection of
Madonna Road and South Higuera. This includes all properties along Los Osos Valley Road corridor,
Madonna Road corridor, and South Higuera corridor. The Edna Saddle Zone also serves properties along
Broad Street from just north of Industrial Way to the airport. The Edna Saddle Zone is served by the
3.8 MG Edna Saddle Tank. The supply comes through the Madonna/Higuera PRV from the Downtown
Zone, which receives its supply from the Foothill Zone. In addition, the Edna Saddle Zone receives water
supplies from the City’s two potable wells, Wells PB#1 and FS#4.
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Ferrini Zone
The Ferrini Zone is entirely residential and has a service area of approximately 40 acres. The small
service area receives its supply from the Foothill Zone via the Ferrini Pump Station. The Ferrini Tank
(0.16 MG) provides storage for the Ferrini Zone as well as the Highland Zone. The Ferrini Pump Station
has two, 1,060 gpm pumps.
Foothill Zone
The Foothill Zone serves both residential and commercial properties and spans 470 acres. The Foothill
Zone also serves Sierra Vista Hospital, which is an essential City facility. The Foothill Zone includes
properties around Foothill Boulevard and properties on Santa Rosa Avenue north of Highway 101. The
Foothill Zone receives its supply from the City’s Water Treatment Plant (WTP) via the two Clear Well
Tanks, which have a total storage of 3.9 MG. The Foothill Zone and WTP Clear Well Tanks also provide
supply to all other zones within the City through either pump stations or PRVs.
High Pressure Zone
The High Pressure Zone spans over 320 acres of residential and commercial properties, including Cal
Poly. In addition, the High Pressure Zone serves French Hospital, which is an essential City facility. The
High Pressure Zone is broken into two regions. The first region includes the lower lying properties
northeast of California Avenue and Highway 101. The second region includes the parcels located
directly between San Luis High School and Bishop Street, west of Johnson Avenue. The two regions are
tied together via a waterline on California Avenue. The High Pressure Zone receives its supply from
Reservoir #2 via the Transfer Pump Station. Reservoir #2 has a total storage of 7.07 MG. The Transfer
Pump Station has four 1,500 gpm pumps.
Highland Zone
The Highland Zone is entirely residential and is approximately 80 acres. It is located northwest of the
Patricia and Foothill Zones. The Highland Zone is served by the Ferrini Zone through two PRVs: Patricia
and Skyline/Mirasol. The Highland Zone does not have its own storage, thus relying on the 160,000 gal
Ferrini Tank to provide storage for the zone.
Patricia Zone
The Patricia Zone serves residential and commercial properties. The zone is located west of the Foothill
Zone and covers approximately 120 acres. The Patricia Zone is served by the Serrano Zone through the
La Entrada/Catalina PRV. The Patricia Zone does not have its own storage, thus relying on the
100,000 gal Serrano Tank to provide storage for the zone.
Reservoir #1 Zone
Reservoir #1 Zone serves both residential and commercial properties. The zone is approximately
230 acres. Reservoir #1 Zone encompasses properties along California Avenue between Highway 101
and San Luis High School, and from Toro Street to the Monterey Avenue/Highway 101 on‐ramp. The
Reservoir #1 Zone is supplied by Reservoir #1, which is fed via the High Pressure Zone via four PRVs:
Grand, California/Monterey, Ella/Binns, and San Luis/Johnson. The 7.50 MG Reservoir #1 provides
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storage to the Reservoir #1 Zone. Reservoir #1 also provides storage for Reservoir Canyon Zone and is a
backup supply to the Andrews Zone.
Reservoir Canyon Zone
The Reservoir Canyon Zone is a small zone that serves two residential parcels outside city limits, along
Highway 101 at the north end of the City. The zone is supplied by the Reservoir Canyon Pump Station.
The pump station is fed from Reservoir #1 in the Reservoir #1 Zone. The pump station boosts water
pressure through three hydro‐pneumatic tanks. The zone is a fully boosted zone. The Reservoir Canyon
Pump Station contains two 3 hp pumps. The purpose of the Reservoir Canyon Pump Station is to sustain
pressure and maximum day flow to the Reservoir Canyon Zone. This pump station does not provide fire
flow service, nor does the City maintain a tank that provides fire flow service to the homes within this
zone per the City’s agreement with the customers located within this zone.
Rosemont Zone
The Rosemont Zone is approximately ten acres and serves nine parcels located at the top end of
Highland Drive. The Rosemont Zone is supplied by the Highland Zone via the Rosemont Pump Station,
which has two 10 hp pumps. The Rosemont Zone also has 35,000 gallons of storage at the Rosemont
Tank.
Serrano Zone
The Serrano Zone serves residential properties at the upper elevations of Serrano Drive, Serrano
Heights, Luneta Drive, and La Entrada Avenue. It is approximately 85 acres in size. The Serrano Zone is
supplied by the Foothill Zone via the Bressi Pump Station. The Bressi Pump Station contains two 40 hp
(500 gpm each) pumps. The Serrano Tank provides the Serrano Zone and Patricia Zone with 100,000
gallons of storage.
Slack Zone
The Slack Zone serves residential properties along Slack Street and the hillside north of Highway 101 at
the north end of the City. The zone is approximately 90 acres. The Slack Zone is supplied by the
McCollum Pump Station. The pump station is fed from the High Pressure Zone and pumps to the 70,000
gallon Slack Street Tank. The McCollum Pump Station contains two pumps, 200 gpm and 600 gpm.
Terrace Hill Zone
Terrace Hill Zone is the second largest zone, spanning over 1,030 acres. The zone includes residential
and commercial properties along Broad Street from Caudill Street to the south end of the City and east
of Broad Street to Southwood Drive. Terrace Hill Zone is supplied primarily by the High Pressure Zone
via the Terrace Hill PRV with a backup supply from the Bishop Zone via the Kentwood/Johnson PRV. The
Terrace Hill Zone also has two storage tanks: Terrace Hill Tank (719,000 gallon) and Islay Tank (399,000
gallon).
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
2‐5
Operation and Maintenance Problem Areas
Water Distribution Staff identified known problem areas throughout the water distribution system.
These problem areas typically revolve around age or material of the water mains that result in breaks
and require emergency repairs. Based on discussions with staff, Table 2‐2 provides an overview of the
projects identified due to operation and maintenance issues, organized by zone.
Attachment 1
THIS PAGE LEFT INTENTIONALLY BLANK
Attachment 1
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PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
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Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
3‐1
3: Study Area Characteristics
Chapter 3 describes the study area characteristics germane to this Water Master Plan for the City.
Included in this chapter is a description of the various land uses in the service area, future development
projections by distribution zone, and existing and future population projections. Future development is
based on the 2014 Land Use and Circulation Element (LUCE) Update. All tables and figures are located
at the end of this chapter
Land Use
The City of San Luis Obispo is located in the heart of San Luis Obispo County. Founded in 1772 and
incorporated in 1856, San Luis Obispo is one of California’s oldest communities and now serves as the
County’s hub for commercial and government services. Figure 3‐1 illustrates the City limits, water
service area, the Urban Reserve Line (URL), and Land Use Designations. Table 3‐1 summarizes the total
acreage for each of the Land Use Designations within the City’s service area boundary per the City’s
2013 GIS database.
Future Development
The City’s Community Development Department provided a summary of the future housing
development anticipated within each of the distribution zones. The majority of the City’s growth areas
are included in the Margarita, Orcutt, and Airport Area Specific Plan areas. The General Plan Housing
Element provides a detailed summary of capacity for future residential development within urban
growth boundaries. As a part of the Housing Element, the City completed a detailed review of existing
land use to identify parcels with development potential based on General Plan land use, allowable
densities, and conditions such as slope and lot orientation. Table 3‐2 provides a summary of potential
future residential development in each distribution zone, as provided by the City from the existing
Housing Element (2010). These development projections include the three major Specific Plan Areas:
Orcutt, Margarita, and Airport. Figure 3‐1 illustrates the specific planning areas.
Population
The City maintains an estimate of the population every year and reports the population in their annual
Water Resources Status Report. The 2013 Water Resources Status Report, prepared by City of San Luis
Obispo’s Utilities Department, reports the population for the City as follows:
2010: 44,948 persons
2011: 45,418 persons
2012: 45,308 persons
Per the 2013 Water and Wastewater Development Impact Fee Study, prepared by the City of San Luis
Obispo’s Utilities Department, it is estimated that the build‐out population within the urban reserve line
is 53,700 persons, which is based on the vacant housing units throughout the City. The City updated in
2014 the Land Use and Circulation Element (2014 LUCE) that provided an estimated Urban Reserve
capacity of 57,200 persons. This population was estimated by increasing the current population by 1%
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
3‐2
every year to Year 2035. For the purposes of this Master Plan, the population used will be based on the
2013 estimates since this estimate is based on the number of vacant parcels throughout the City and not
a general increase.
Three additional factors impact the population of the City. First, while California Polytechnic State
University (Cal Poly) has its own water supply source, the City treats and distributes water to the
University located just outside of City limits. Cal Poly maintains a student enrollment between 18,260
and 19,780 students with a projected enrollment at 20,912 students by the year 20201. The campus also
maintains 1,250 faculty members. Second, the City is the civic, economic and cultural hub of the Central
Coast. With the major regional employers, the City has an estimated daytime population of more than
70,000 persons2. Last, the City is a popular tourist destination due to its proximity to beaches and
wilderness areas, historic downtown, and its overall vitality. The City’s tourism is at its peak during the
summer; However, Cal Poly is also out of session at this time, thus reducing the overall daily population
served by the City during the summer months.
1 Per Table 4 of the Administrative Draft Initial Study and Mitigated Negative Declaration for Student Housing
South. Prepared for California Polytechnic State University, San Luis Obispo. Prepared by SWCA Environmental
Consultants, dated August 2013
2 Source: 2014 City of San Luis Obispo Local Hazard Mitigation Plan
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
3‐3
Table 3‐1. Existing Land Use Designations
General Plan Land Use Total Acreage
Agriculture 78
Business Park 322
Community Commercial 64
General Retail 354
High Density Residential 234
Interim Open Space 184
Low Density Residential 2,050
Medium Density Residential 827
Medium High Density Residential 280
Neighborhood Commercial 43
Office 231
Open Space 56
Park 218
Public 910
Recreation 53
Residential Neighborhood 5
Rural Residential 648
Services & Manufacturing 1,050
Suburban Residential 403
Tourist Commercial 128
Source: City of San Luis Obispo’s GIS Database (2013)
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
3‐4
Table 3‐2. Housing Units by Zone
Distribution
Zone
Future Additional Housing Units
Parcel Capacity
Approved,
not yet
Constructed
Total
Alrita 8 0 8
Andrews 24 0 24
Bishop 143 0 143
Downtown 524 193 717
Edna Saddle 1,346 394 1,740
Ferrini 2 0 2
Foothill 134 4 138
High Pressure 156 0 156
Highland 1 0 1
Patricia 5 0 5
Reservoir #1 59 0 59
Reservoir Canyon 0 0 0
Rosemont 4 0 4
Serrano 28 0 28
Slack 18 0 18
Terrace Hill 1,311 231 1,542
TOTALS 3,763 822 4,585
Source: City of San Luis Obispo’s Housing Element (2010)
Attachment 1
EXHIBIT NOTES:WALLACE GROUP DID NOT PERFORM SURVEY SERVICES FOR THIS MAP. NOT A LEGAL DOCUMENT.
CITY OF SAN LUIS OBISPOWATER MASTER PLAN
Figure 3-1 LAND USE DIAGRAMCIVIL ENGINEERINGCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us SOURCE: CITY OF SAN LUIS OBISPO 2014 LUCE UPDATE
Attachment 1
THIS PAGE LEFT INTENTIONALLY BLANK
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
4‐1
4: Water Demand
Chapter 4 describes the existing and projected water demands for the City. The water demand forecasts
will form the basis for identifying existing and future system needs and analyzing deficiencies. All tables
and figures are located at the end of this chapter.
General water demand and production definitions used in this report are defined as follows:
Water Consumption – The amount of water consumed (as measured directly through customer
meters).
Water Production – The amount of water produced by the City’s water supply sources.
Unaccounted‐for‐Water (UAW) – the difference between the quantity of water produced and the
amount of water consumed (as measured directly through customer meters). It is comprised of
apparent losses and real losses.
Apparent losses – The losses due to inaccuracies associated with customer metering as well as data
handling errors and unauthorized consumption.
Real losses ‐ The physical water losses from the distribution system and tanks, up to the point of the
meter. Real losses are typically from leaks, breaks, and overflows.
Historical Water Demand
Water production data was provided by the City for the Years 2010, 2011 and 2012. The historical
production of potable water is summarized in Table 4‐1.
Unaccounted for Water
The City has conducted water audits using the American Water Works Association (AWWA) Water Loss
Control Committee (WLCC) Free Water Audit Software to determine the City’s UAW due to apparent
and real losses. Based on the City’s water audit, the total water losses (real and apparent losses
combined) are as follows:
Fiscal Year 2009‐2010: 12.3%
Fiscal Year 2010‐2011: 10.6%
Fiscal Year 2011‐2012: 10.7%
The AWWA Manual 32 states municipal water system losses typically range between 10 and 15 percent
of total water produced. The City’s UAW average is 11.2% for Fiscal Years 09/10 through 11/12, which is
within an acceptable range for water losses. The total annual cost to produce water that did not
generate revenue in 2009‐2010 was $610,000 per the City’s Water Audit. Water losses should be
minimized where possible since it requires the City’s resources to produce water, but is usually not
being accounted for and thus revenue is not being collected.
Water Demand Categories
The production noted in Table 4‐1 includes all customers within the City, including Cal Poly. The City has
substantial commercial and residential growth anticipated for the future. In order to gain a better
understanding of the water demands for future growth, the total production has been further broken
down into the following categories:
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
4‐2
1. Residential: Includes residential single family, residential multi‐family, mobile home parks, and
care facilities, including assisted living facilities
2. Commercial: Includes commercial, restaurants, hospitals, light industrial, and landscape
3. Hotel/Motel: Includes hotels and motels
4. School: Includes all schools, excluding Cal Poly
5. Cal Poly
Table 4‐2 provides a summary of the average daily demands broken into the categories listed above
from meter records for calendar year 2010 – 2012, with 11.2% factor for UAW, and the estimated
quantity or unit for each category. Table 4‐2 also provides a use factor for the categories provided,
which can further be used to estimate water demands for future growth.
Hydraulic Demand Parameters
Water system demands are important characteristics of water systems, as these parameters are used to
size pumping, storage, and distribution system facilities. Each community’s water system exhibits
unique characteristics that must be calculated and identified in order to better evaluate existing and
future water distribution system requirements. The hydraulic demand parameters used to evaluate the
City’s water distribution system are as follows:
Average Day Demand (ADD)
The ADD is the average water production needed to meet the daily demand, which is calculated over the
year. This demand is generally determined by production records. Table 4‐1 provides a summary of the
ADD for 2010 through 2012, which equates to 5,823 AFY or 5.20 mgd.
Maximum Day Demand (MDD)
The MDD is the maximum daily production of water needed to meet the peak day demand of the year.
Typically, MDD occurs during the summer as a result of increased irrigation demand, coupled with the
height of the tourist season. However, with Cal Poly out of session during the summer, maximum day
demand does not typically occur during the summer for the City. Thus, per the City production records
between 2010 and 2012, the maximum day production was 7.96 mgd, which occurred on October 4,
2012. This equates to a peaking factor of 1.5.
Peak Hour Demand (PHD)
The PHD of the system is critical in sizing water mains and pumping facilities. During PHD, customers
will generally experience low service pressures in areas with undersized mains and/or lack of looped
distribution water mains. The PHD is generally determined by calculating the specific demand within the
day, by monitoring tank levels and pumping records. In many municipal systems, the exact calculation
of this parameter is difficult to ascertain.
The City does not maintain hourly production records, which would be used to determine PHD.
Therefore, to determine a reasonable peaking factor for PHD, the following sources were evaluated:
1. 2000 Water Master Plan
2. California Code of Regulations, Title 22
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
4‐3
3. Metcalf & Eddy design handbook “Wastewater Engineering, Treatment and Reuse, Fifth
Edition”, 2014
2000 Water Master Plan
The 2000 Water Master Plan identified a PHD factor of 2.75. This peaking factor is similar to the City’s
peak hour dry wastewater flow factor of 2.5 per the 2010 City Engineering Standards. The City
Standards do not include peaking factors for water demand; therefore they could not be evaluated.
California Code of Regulations, Title 22
Another source for water system peaking factors is California Code of Regulations Title 22. Per Title 22,
peaking factors should be calculated for the system as a whole and individually for each pressure zone.
Table 4‐3 includes a summary of Section 64554 “New and Existing Source Capacity” minimum
requirements for peaking factors from Title 22. The peaking factors can be established using two
different methods, monthly water records or annual water records, depending on the available
information.
Metcalf & Eddy Design Handbook
An industry standard for peaking factors is the Metcalf & Eddy design handbook “Wastewater
Engineering, Treatment and Resource Recovery, Fifth Edition”, 2014. This engineering reference
recommends a peak hour (wastewater) factor of 4.0 for systems serving a population of 5,000 persons
or less. This peaking factor may be most appropriate for the individual pressure zones that serve a
population of 5,000 persons or less as peaking factors typically increase as the service population
decreases, due to the likelihood for a greater percentage of the population to be using water at the
same time.
PHD Peaking Factor Analysis Conclusion
Based on the review of the three peaking factor sources, it is recommended to derive the PHD factor by
correlating the Metcalf & Eddy wastewater peaking factors serving a population of 5,000 or less, and the
Title 22 for larger systems or zones. Based on the City’s current total average water use of 104 gpcd
(does not include Cal Poly Ag or Domestic water use) per the City’s 2013 Water Resources Status Report
(excluding recycled water usage), a system (in this case, an individual distribution zone ) serving 5,000
persons would have an average daily use of 361 gpm. Therefore, a peaking factor of 4.0 is
recommended for zones with an average flow less than or equal to 361 gpm.
Peaking Factor Summary
Recommended peaking factors are summarized in Table 4‐4. Table 4‐5 provides a summary of the water
system demands that will be used as the basis for evaluation of the City’s water distribution system.
Future Water Demands
Table 4‐2 summarizes the water demand factors for each land use category. The water demand factors
used in Table 4‐2 will be used to estimate future needs. In addition, the peaking factors identified in
Table 4‐4 will also be used for future needs. Table 4‐6 provides the estimated future demands for the
City per the 2014 LUCE Update. Table 4‐7 provides a breakdown of the future water system demands by
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
4‐4
zone per the 2014 LUCE Update. The future demands are based on the proposed zone consolidations
identified and discussed in Chapter 8.
Table 4‐1. Summary of Historical Water Production
Year Total Production
(ac‐ft)*
2010 5,888
2011 5,676
2012 5,904
Average 5,823
* Total production of surface water and
groundwater. Does not include Recycled
Water use. Includes domestic production for
Cal Poly.
Table 4‐2. Existing Water Demand Factors
Use Category Consumption
(gpd) Quantity or Units1 Demand Factor
Residential 3,299,040 45,225 Persons 73 gpcd
Commercial 1,225,440 12,800,801 Square feet 0.10 gpd/sf
Hotel/Motel 180,000 2,183 Rooms 82 gpd/rm
School 38,880 4,213 Students 9 gpd/student
Cal Poly 617,760 18,650 Students 33 gpd/student
1 Quantities, excluding residential and Cal Poly population, obtained from the City’s 2008 Land Use
comparison for the City’s General Plan. Residential population based on average population between
2010‐2012 per the 2013 Water Resources Status Report. Cal Poly population based on the average
student population between 2010‐2012 per the Administrative Draft Initial Study and Mitigated Negative
Declaration for Student Housing South.
Table 4‐3. Title 22 Minimum Water System Peaking Factors
Data Source
Available Multiply By
PHD
Factor
Monthly Water
Use Records
Highest month divided by number of days in
month to obtain average daily use. Multiply
average daily use by peaking factor.
2.25
Annual Water
Use
Total annual water use divided by 365 days to
obtain average daily use. Multiply average
daily use by peaking factor.
3.375
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
4‐5
Table 4‐4. Recommended Water System Peaking Factors by Zone
Zone ADD
(gpm)
Peaking Factors
Zone ADD
(gpm)
Peaking Factors
MDD PHD MDD PHD
Alrita 2 1.5 4.0 Highland 33 1.5 4.0
Andrews 30 1.5 4.0 Patricia 67 1.5 4.0
Bishop 205 1.5 4.0 Reservoir 1 179 1.5 4.0
Downtown 573 1.5 3.375 Reservoir
Canyon <1 1.5 4.0
Edna Saddle 994 1.5 3.375 Rosemont 1 1.5 4.0
Ferrini 21 1.5 4.0 Serrano 19 1.5 4.0
Foothill 416 1.5 3.375 Slack 40 1.5 4.0
High
Pressure 604 1.5 3.375 Terrace Hill 538 1.5 3.375
Table 4‐5. Existing Water System Demands1
Zone ADD MDD PHD Zone ADD MDD PHD
Alrita 2 3 8 Highland 33 50 131
Andrews 30 45 120 Patricia 67 101 267
Bishop 205 308 818 Reservoir 1 179 605 717
Downtown 573 860 1,933 Reservoir
Canyon <1 1 3
Edna
Saddle 994 1,491 3,354 Rosemont 1 2 5
Ferrini 21 32 86 Serrano 19 65 76
Foothill 416 624 1,405 Slack 40 60 160
High
Pressure 604 906 2,039 Terrace Hill 538 807 1,817
1All values expressed in gallons per minute (gpm).
Table 4‐6. Future Water Demand Factors per the 2014 LUCE Update
Use Category Quantity or Units1 Use Factor Consumption
(gpd)
Residential 53,700 Persons 73 gpcd 3,920,100
Commercial 33,187,865 Square feet 0.10 gpd/sf 3,318,790
Hotel/Motel 3,220 Rooms 82 gpd/rm 264,040
School 4,975 Students 9 gpd/student 44,775
Cal Poly 20,910 Students 33 gpd/student 690,030
Total 8,237,735
1 Residential and Cal Poly populations identified in Chapter 2. School quantity based on 9% of overall
residential population, equivalent to existing student to population ratio. Commercial and Hotel/Motel
quantities obtained from City Staff, WSC Consulting, and land use data from City’s traffic model.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
4‐6
Table 4‐7. Future Water System Demands per the 2014 LUCE Update1
Zone ADD MDD PHD Zone ADD MDD PHD
Alrita 2 3 8 High Pressure 1,127 1,691 3,798
Andrews 33 50 132 Reservoir
Canyon <1 1.5 4
Downtown 731 1,097 2,463 Rosemont 2 3 8
Edna
Saddle 2,551 3,827 8,597 Terrace Hill 601 902 2,026
Foothill 671 1,007 2,261
1All values expressed in gallons per minute (gpm).
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
5‐1
5: Water Supply Overview
Chapter 5 provides an overview of the City’s water supply. More detailed information about the City’s
water supply and the redundancy and reliability of the water supplies is located in 2010 Urban Water
Management Plan Update.
Introduction
The City has adopted a multi‐source water supply strategy and obtains water from four sources: Salinas
Reservoir (Santa Margarita Lake), Whale Rock Reservoir, Nacimiento Reservoir, and local ground water.
The City also augments its potable water demands through a recycled water program, delivering
recycling water to various customers for landscape irrigation.
Salinas Reservoir
The Salinas Dam was built in 1941 by the War Department to supply
water to Camp San Luis Obispo and, secondarily, to meet the water
needs of the City. The Salinas Reservoir (Santa Margarita Lake)
captures water from a 112 square mile watershed and can currently
store up to 23,843 acre‐feet. In 1947, the Salinas Dam and delivery
system was transferred from the regular Army to the U.S. Army
Corps of Engineers. Since the late 1940's, the San Luis Obispo
County Flood Control and Water Conservation District has operated this water supply for the City under
a lease from the U.S. Army Corps of Engineers. Water from the reservoir is pumped through the Cuesta
Tunnel (a one mile long tunnel through the mountains of the Cuesta Ridge) and then flows by gravity to
the City’s Water Treatment Plant on Stenner Creek Road. The City is permitted to store up to 45,000
acre‐feet, which would require a spillway gate to increase the storage capacity.
Whale Rock Reservoir
The Whale Rock Reservoir provides water to the City, California
Polytechnic State University, and the California Men’s Colony as well as the
town of Cayucos. The Whale Rock Reservoir is a 38,967 acre‐foot reservoir3
created by the construction an earthen dam on Old Creek near the town of
Cayucos. The dam was designed and constructed by the State Department
of Water Resources beginning in October 1958 and completed in April
1961. The Whale Rock Dam captures water from a 20.3 square mile
watershed and water is delivered to the three agencies through 17.6 miles of 30‐inch pipeline and two
pumping stations.
Nacimiento Reservoir
The Nacimiento Reservoir provides flood protection and is a source of supply for groundwater recharge
for the Salinas Valley. It is owned and operated by the Monterey County Water Resources Agency. Since
1959, the San Luis Obispo County Flood Control and Water Conservation District has had an entitlement
3 Source: Whale Rock Reservoir Bathymetric Survey and Volumetric Study, May 2013
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
5‐2
to 17,500 AFY of water from the reservoir for use in San Luis Obispo County. Approximately 1,750 AFY
have been designated for uses around the lake, leaving 15,750 AFY for
allocation to other areas within the County of San Luis Obispo. The County
began construction in 2007 on a 45‐mile pipeline project to deliver water from
the Nacimiento Reservoir to five participating agencies and cities. The City has
a contractual entitlement to 3,380 AFY of water from the project. The
construction of the pipeline and delivery facilities was completed in December
2010 and water deliveries to the City began in January 2011.
Groundwater
The City currently operates two potable water wells, which produce approximately 2% of the City’s
current water supply. In addition, the City operates two non‐potable wells at Laguna Lake Golf course
for irrigation, and one non‐potable well at the City Corporation Yard for construction water. In addition,
a fourth non‐potable well was added in 2013 to serve the Calle Joaquin AG Reserve.
Recycled Water
The City’s Water Resource Recovery Facility (WRRF) currently receives approximately 3.5 mgd
wastewater flows. The City treats municipal wastewater to tertiary 2.2 standards. The City has a
recycled water distribution system that delivers recycled water to a number of customers in the
southern area of the City, including Laguna Golf Course, Laguna Middle School, Laguna Lake Park,
Damon Garcia Sports Complex, and commercial centers such as Irish Hills Plaza. In 2012, recycled water
irrigation deliveries amounted to 168 AF. The County Regional Airport is planned to be served by the
City's water recycling system in future years.
San Luis Obispo Creek Discharge. The City must maintain stream flow to San Luis Obispo
Creek in compliance with the National Oceanic and Atmospheric Administration’s National Marine
Fisheries Service (NOAA NMFS) Biological Opinion, at a minimum average daily flow of 2.5 cfs (1.6 mgd
or 1,800 AFY). This discharge requirement is expected to remain at this flow rate for the foreseeable
future.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐1
6: Water Storage
Chapter 6 describes the existing and projected water storage requirements for the City. All tables for
Chapter 6 are located at the end of this chapter.
Existing Water Storage Facilities
The City owns and operates ten tanks, two reservoirs, and five hydro‐pneumatic tanks. The locations of
these facilities are identified on Figure 2‐1. Table 6‐1 summarizes each of the water storage facilities
and the primary and secondary distribution zones they serve.
Existing Storage Analysis
It is recommended that sufficient useable storage volume be maintained for emergency, fire, and
operational needs within the City’s tanks and reservoirs in each individual zone. For the purposes of this
report, the groundwater wells will not be considered in the storage analysis. In addition, storage from
neighboring zones is not considered unless water can be transferred between zones without the use of a
booster station or a manually operated valve (i.e. through a normally closed isolation valve). However, a
zone that is supplied by a hydraulically controlled valve or a booster station that has its own permanent
on‐site backup generator can use the supply source storage as a backup storage facility.
Un‐useable Storage
Un‐useable storage is the volume of water that is below the top of the outlet pipe to the bottom of the
tank. This water cannot be used without the use of a sump pump and therefore is not included in the
overall volume of the tank.
Emergency Storage
Emergency storage is intended to provide for conditions such as extended power outages, pump
failures, and similar problems. Most water planners accept that during emergencies, supply per capita
may be reduced to minimum levels. Typically, on that basis, an emergency storage volume of 50 gpcd
for three days is accepted as a reasonable value. Table 6‐2 provides a summary of the emergency
storage recommendations for the existing population for the City.
Fire Storage
Fire storage is the volume of water needed to control an anticipated fire in a building or group of
buildings. The determination of this storage is based upon the most stringent zoning within a
distribution zone, and the required fire flow and duration in that zone per the City Fire Department and
the Uniform Fire Code (UFC). The flow rate and duration of the required fire flow varies greatly with the
type of development and whether or not the buildings have sprinkler systems. The required fire flow for
each distribution zone, based on land use is provided in Table 6‐3. A summary of the fire flow
requirements by zoning is provided in Table 8‐4.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐2
Emergency: 50 gpcd
for 3 days
Fire: Most Stringent
Land Use Zoning
Operational: 25% of
ADD
Un‐useable Volume
Operational Storage
Operational storage is the amount of water needed to equalize the daily supply and demand. Without
this storage, water production facilities would be required to be sized large enough to meet the
instantaneous peak demands of the system. With adequate operational storage, booster stations can
operate at the daily average rate, while storage facilities meet the hourly peaks. AWWA M‐32
recommends operational storage of 20 to 25 percent of average day demand, or up to 15 percent of the
maximum day demand. Based on the more stringent criteria for the City being 25 percent of average
day demand, the recommended operational storage for existing conditions is summarized for each zone
in Table 6‐4.
Storage Summary
The useable storage recommended for each distribution zone as noted
previously is based on a summation of the emergency, fire, and operational
storage recommendations as shown in the adjacent figure.
Table 6‐5 provides a summary of the storage recommendations for existing
conditions. As noted in Table 6‐5, the City has sufficient storage overall;
However, several of the tanks are deficient in providing adequate storage
within the zones that they serve. The following tanks are deficient under
existing conditions:
1. Rosemont Tank serving Rosemont Zone: 146,860 gallon deficit
2. Ferrini Tank serving Ferrini and Highland Zones: 138,440 gallon
deficit
3. Serrano Tank serving Serrano and Patricia Zones: 388,460 gallon
deficit
4. Slack Street Tank serving Slack Zone: 317,900 gallon deficit*
5. Terrace Hill and Islay Tanks serving Terrace Hill Zone: 1,039,180 gallon deficit*
6. Bishop Tank serving Bishop and Alrita Zones: 672,520 gallon deficit*
*Tank deficits accommodated by shared storage – see Shared Storage discussion below
Shared Storage
Often times, higher elevation zones are capable of back‐feeding into lower zones, thus providing
additional storage to the lower elevation zones that may have storage deficits. This is not an optimal
solution for day‐to‐day operations; however, this option does allow redundancy and helps provide
protection to lower elevation zones specifically under emergency or fire flow conditions. Under
emergency or fire conditions, higher elevation zones that are fed by a booster station are not considered
in this analysis since power to a booster station is not reliable under emergency conditions. If a booster
station has a permanent generator with an automatic transfer switch, then a higher elevation tank (fed
by this booster station) can be used as a redundant, back up tank. The following tanks can provide
additional storage to the zones that currently have a storage deficit:
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐3
1. Reservoir #2 to Slack Zone: The elevation of Reservoir #2 can provide gravity pressure to the
Slack Zone under emergency conditions, thus not having to rely on the McCollum Booster
Station. See Chapter 8 on discussions regarding the elimination of the McCollum Pump Station.
2. Reservoir #2 to Terrace Hill Zone: Reservoir #2 supplies the Terrace Hill Zone via gravity through
the Terrace Hill PRV and the Kentwood/Johnson PRV. This connection provides sufficient
storage redundancy to meet the needs of the Terrace Hill Zone.
3. Reservoir #2 to Bishop Zone: The elevation of Reservoir #2 provides gravity pressure to the
Bishop Zone under normal day‐to‐day conditions. See Chapter 8 on discussions regarding the
elimination of the Bishop Pump Station.
Existing Storage Recommendation Overview
Based on the Table 6‐5 and the discussion on shared storage, the Rosemont Tank, Ferrini Tank, and the
Serrano Tank are deficient in storage to meet the existing needs of the distribution zones they serve.
The following projects are recommended to meet storage needs:
1. Storage 1: Construct an additional 400,000 gallon tank in the Serrano Zone for a total of 500,000
gallons (Note – This tank could be eliminated by zone consolidation, see the next section, Future
Storage Analysis, and Chapter 8).
2. Storage 2: Construct an additional 150,000 gallon tank in the Rosemont Zone for a total of
190,000 gallons.
3. Storage 3: Construct an additional 150,000 gallon tank in the Ferrini Zone for a total of 300,000
gallons (Note – This tank could be eliminated by zone consolidation, see the next section, Future
Storage Analysis, and Chapter 8).
Future Storage Analysis
As noted under existing conditions, for the purposes of this report, the groundwater wells will not be
considered in the storage analysis. The following discusses the storage needs to meet future demands.
Chapter 8 of this report proposes significant changes to the water distribution zones, thus impacting the
storage requirements within the zones. The following analysis of the storage requirements under future
conditions includes consideration of the proposed zone consolidations as well as the future demands
anticipated for each of the new zones. The proposed zone consolidations will result in the following
recommended changes to the tanks:
1. Eliminate the Ferrini Tank.
2. Eliminate the Serrano Tank.
3. Eliminate the Slack Tank.
4. Reservoir #1 and the Clear Wells will operate together. This results in a reduction of useable
storage in Reservoir #1 from 7.5 MG to 5.1 MG. It is assumed that the water surface elevation
of Reservoir #1 would lag behind the Clear Wells by 1‐2 foot. The total storage between these
three reservoirs is 9.1 MG.
5. Reservoir #2 and Bishop Tank will operate together.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐4
Emergency Storage
Table 6‐6 provides a summary of the emergency storage recommendations for future population for the
City. The future emergency storage recommendations are based on the proposed zone consolidations
identified and discussed in Chapter 8.
Fire Storage
Table 6‐7 provides a summary of the fire storage recommendations for the future land uses within each
distribution zone. The future fire storage recommendations are based on the proposed zone
consolidations identified and discussed in Chapter 8.
Operational Storage
Based on the more stringent criteria for the City, being 25 percent of average day demand, the
recommended operational storage for future conditions is summarized for each zone in Table 6‐8. The
future operational storage recommendations are based on the proposed zone consolidations identified
and discussed in Chapter 8.
Storage Summary
The recommended useable storage for each distribution zone is based on a summation of the
emergency, fire, and operational storage recommendations under future conditions. Table 6‐9 provides
a summary of the storage recommendations. As noted in Table 6‐9, the City has sufficient storage
overall; however, several of the tanks are deficient in providing adequate storage within the zones that
they serve. The following tanks are deficient under future conditions:
1. Rosemont Tank serving Rosemont Zone: 147,220 gallon deficit
2. Edna Saddle Tank serving Edna Saddle Zone: 216,860 gallon deficit*
3. Terrace Hill and Islay Tanks serving Terrace Hill Zone: 1,309,360 gallon deficit*
*Tank deficits accommodated by shared storage – see Shared Storage discussion below
Shared Storage
As noted previously, higher elevation zones are capable of back‐feeding into lower zones, thus providing
additional storage to the lower elevation zones that may have storage deficits. The following tanks can
provide additional storage to the zones that currently have a storage deficit:
1. Clear Wells to Edna Saddle Zone: The deficit in the Edna Saddle Zone is minor. In addition, the
Edna Saddle Zone is fed via gravity through the Madonna/Higuera PRV from the Downtown
Zone, which receives its water supply via gravity through PRVs from the Foothill Zone. These
connections provide sufficient storage redundancy to meet the storage needs of the Edna
Saddle Zone.
2. Reservoir #2 and Bishop Tank to Terrace Hill Zone: With the proposed consolidations,
Reservoir #2 and Bishop Tank will supply the Terrace Hill Zone by gravity via the Terrace Hill PRV
and the Kentwood/Johnson PRV. In addition, a new PRV that will serve the Orcutt Specific Plan
Area (see Chapter 7). These connections provide sufficient storage redundancy to meet the
storage needs of the Terrace Hill Zone.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐5
Future Storage Recommendation Overview
Based on results presented in Table 6‐9 and the discussion on shared storage, the only tank that does
not meet future storage needs is the Rosemont Tank. The following project is recommended to meet
future storage needs:
1. Rosemont Tank Replacement: : Construct an additional 150,000 gallon tank in the Rosemont
Zone for a total of 190,000 gallons or install a fire pump at the proposed Fel‐Mar pump station
with a permanent stand by generator to provide additional fire support to the Rosemont Zone.
Operation and Maintenance Storage Recommendations
The City is fortunate to have an abundance of storage, with the majority of the storage at the Clear
Wells, Reservoir #1 and Reservoir #2. Under existing conditions, the City has more than 9.0 MG of
excess storage and under future conditions, with the proposed zone consolidations and the removal of
three tanks, the City still has more than 9.0 MG of excess storage. Based on discussions with City staff
and understanding current California Department of Public Health water quality requirements, turnover
(the amount of time for all the water to be used in the tank) within each tank is a high priority for the
City. If the water remains in the reservoirs or tanks for too long, the water becomes stagnant and
requires additional chlorine treatment, which is an added expense to the City and provides challenges in
meeting Stage 2 Disinfection Byproducts water quality regulations. The following are recommendations
based on discussions with the City and identifying optimal solutions to operating the City’s water
distribution system and storage facilities:
1. Reservoir #2/Bishop Tank Control Valve: A concern with consolidating the High Pressure and
the Bishop Zones is the inability to turn over the Bishop Tank. Since Reservoir #2 is so large and
the operating range is only a couple of feet, the Bishop Tank has the potential to not turnover
sufficiently to maintain good water quality. Therefore, it is recommended to install an actuator
controlled isolation valve on the 16‐inch water main in San Luis Drive on the south side of the
California Boulevard and San Luis Drive intersection. The isolation valve would be closed during
the day, allowing Bishop Tank to exclusively feed the High Pressure and Alrita Zones
downstream of the regulating valve. The regulating valve would be opened at night to allow the
tank to re‐fill. In the event of an emergency or sudden loss of pressure, the regulating valve
would open and supply more water to the downstream side of the High Pressure Zone. These
operations would increase turn‐over in the tank thereby improving water quality.
2. Reservoir #2 Replacement: Reservoir #2 is a single large (7.07 MG) reservoir. The reservoir was
constructed in the early 1940’s, making the reservoir over 70 years old. The reservoir is
equipped with a floating cover that is currently in need of replacement and doesn’t meet
current health standards. Because the reservoir is a single entity, the entire storage volume
must be taken out‐of‐service for maintenance operations. In order to take the reservoir out of
service, the High Pressure Zone must be fed by the Transfer Pump Station. As noted in
Chapter 7, the Transfer Pump Station has deficiencies in serving the High Pressure Zone under
emergency conditions. It is recommended to construct two new 2.5 MG tanks at the Reservoir
#2 site. The overflow elevation should remain at 558 ft and the base elevation is
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐6
recommended to match the Bishop Tank at 529.5 ft. A preliminary engineering study will need
to be conducted prior to design to identify the optimal location to construct the two new
tanks. The new tanks will allow for a portion of the storage to be taken out of service while
still providing sufficient storage to meet the needs of the zone for a short period of time. The
decreased storage will also assist the City in achieving better turnover in the reservoir.
3. Reservoir #1 Replacement: Similar to Reservoir #2, Reservoir #1 was constructed as one large
(7.5 MG) reservoir. Reservoir #1 was constructed around the same time as Reservoir #2, and is
also equipped with a floating cover that does not meet current health standards. If the reservoir
is in need of maintenance, the entire reservoir must be taken out‐of‐service. The loss of this
reservoir is not as critical as Reservoir #2 since the zone can be served by gravity through PRVs
from the High Pressure Zone. In addition, under the proposed zone consolidation, Reservoir #1
would be served by the Foothill Zone (sourced from the Clear Wells), thus the reservoir can be
taken out of service and the zone can still be reliably served. Under the proposed zone
consolidation, Reservoir #1’s storage is being reduced from 7.5 MG to 5.13 MG due to elevation
differences between Reservoir #1 and the Clear Wells. This reduction in storage will assist the
City in achieving better turnover in the reservoir. It is recommended as a long‐term master
plan improvement project to replace Reservoir #1 with two 1.5 MG tanks, operating at the
same hydraulic grade as the Clear Wells. Alternatively, the City may construct a new
additional tank at the Clear Well site and reduce the storage at Reservoir #1 site. This should
be evaluated during preliminary engineering phase for the construction of Reservoir #1.
Therefore, the overall storage within the Foothill Zone would be 6.97 MG (3.97 MG at the Clear
Wells and 3 MG at Reservoir #1). This is still 2.0 MG more storage than what is needed in the
Foothill Zone. If Clear Well #1 is taken out of service (the largest of all four tanks), the remaining
three tanks can still adequately serve the zone’s emergency, fire, and operational needs.
4. Seismic and Mixing System Upgrades: Several of the tanks that are to remain in service do not
meet current CDPH regulations for inlet/outlet configuration and/or earthquake safety.
Rosemont, Edna Saddle, Terrace Hill and Islay should have seismic evaluations completed.
Flexible couplings or double ball expansion joints should be installed where appropriate. The
inlet/outlet should either be re‐configured to meet current CDPH regulations or install a Tideflex
Mixing System or similar unit inside the tank to promote mixing and eliminate stagnation within
zones of the tank. These upgrades will bring the tanks into compliance with current CDPH
requirements. *Note – If the Rosemont Tank is replaced with a new 190,000 gal tank, these
recommendations should be incorporated into the new tank design.
Regulatory Compliance
While not directly evaluated as part of this Master Plan, the City’s ongoing ability to meet the
requirements of the Stage 2 Disinfectants and Disinfection Byproduct Rule (Stage 2 DBPR) will need to
be considered in all future decisions related to the operation, maintenance and development of the
water system. The areas for specific ongoing consideration and future evaluation are:
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐7
Source Water
From a water supply perspective, the City is very fortunate to have 3 surface water sources (Salinas
Reservoir, Nacimiento Lake, Whale Rock Reservoir). Each of these sources are unique and have different
treatment characteristics. Given the multiple combinations and blend proportions possible, this is a
current and an ongoing treatment priority. In specific consideration to compliance with the Stage 2
DBPR, the City will need to continue their evaluation of each source (seasonal, intake level effect on
disinfectant byproduct (DBP) precursors, costs, etc.) and blending properties.
Treatment
Originally built in 1963, the City’s Water Treatment Plant (WTP) has most recently been upgraded in
1994 and 2008. In 1994, ozone was incorporated as the primary disinfectant, replacing chlorine, to
minimize the formation of DBPs during the treatment process. In 2008, ballasted flocculation was
added to raise the entire plant rating to full conventional surface water treatment levels. WTP staff has
performed extensive coagulant testing to improve DBP precursor removal. Continued testing and
evaluation still needs to be performed to optimize the WTP’s contribution to meeting this regulation. If
sufficient DBP precursor removal is not achieved, then alternative filtration methods (GAC, membrane,
etc.) may need to be considered.
Disinfection
As mentioned above, the City has already incorporated ozone as its primary disinfectant. If DBP
compliance continues to be an issue, then the City could consider switching from their current use of
sodium hypochlorite as a secondary disinfectant to chloramination or some other alternative
disinfectant. The use of alternative disinfectants have significant safety and operational considerations
and is recommended as a lower priority option at this time.
Distribution System
A significant portion of compliance with the Stage 2 DBPR is dependent on the water distribution system
infrastructure and operation. This is achieved through minimization of water age, primarily through
proper tank sizing, optimization of distribution system operations and possibly, installation of DBP
removal systems in key tanks. Tank sizing is a key component of this master plan and is discussed more
thoroughly in Chapter 6. In‐tank DBP removal systems can be a very effective compliance component
depending on DBP specie proportion. It is recommended that the City pursue further evaluation of the
effectiveness of the DBP removal systems in their case. Key tanks to evaluate are Clear Wells #1
and/or #2, Reservoir #2, Edna Saddle and Bishop Tank but all tanks should be considered. Operation
of the distribution system has a direct effect on water age and must be evaluated further by the City to
meet and maintain compliance. It is recommended that the City evaluate their system operation and
incorporate improved operational capability into their current SCADA upgrade project.
Overall Storage Recommendations
With the proposed zone consolidations and the ability to share storage between zones, the City’s
storage supplies are more than sufficient to meet the future needs of the City. The following are the
storage recommendations based on emergency, fire, and operational needs as well as long term
operations and maintenance needs.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐8
1. Rosemont Tank Replacement: Construct an additional 150,000 gallon tank in the Rosemont
Zone for a total of 190,000 gallons or install a fire pump at the proposed Fel‐Mar pump station
with a permanent stand by generator to provide additional fire support to the Rosemont Zone.
2. Reservoir #2/Bishop Tank Control Valve: Install an actuator controlled isolation valve on the 16‐
inch water main in San Luis Drive, on the south side of the California Boulevard and San Luis
Drive intersection.
3. Reservoir #2 Replacement: Construct two new 2.5 MG tanks or reservoirs at the Reservoir #2
site.
4. Reservoir #1 Replacement: Construct two new 1.5 MG tanks, operating at the same hydraulic
grade as the Clear Wells.
5. Seismic and Mixing System Upgrades: Conduct seismic evaluations and install flexible couplings
or double ball expansion joints and mixing systems at Rosemont, Edna Saddle, Terrace Hill and
Islay.
6. DPB Removal System: Evaluate the effectiveness of DBP Removal Systems at Clear Wells #1
and/or #2, Reservoir #2, Edna Saddle and Bishop Tank.
Attachment 1
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d
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4
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3.82 3.82
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8
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8
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k
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4
0.16 0.16
Re
s
e
r
v
o
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r
#2
19
4
2
Hi
g
h
Pr
e
s
s
u
r
e
An
d
r
e
w
s
Co
n
c
r
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t
e
~ To
p
19
0
x
3
4
0
N/
A
53
8
55
8
N/A 7.07
Re
s
e
r
v
o
i
r
#1
N/
A
Re
s
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r
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r
#1
‐‐
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n
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t
e
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r
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g
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l
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r
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a
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A
41
3
43
6
.
3
N/A 7.504
Re
s
e
r
v
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r
Ca
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y
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A
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r
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r
Ca
n
y
o
n
‐‐
‐
St
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l
N/
A
N/
A
N/
A
N/
A
255 gal 255 gal
Ro
s
e
m
o
n
t
19
9
4
Ro
s
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m
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t
‐
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Pa
t
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24
53
5
53
5
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5
0.07 0.07
Is
l
a
y
5
19
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6
Te
r
r
a
c
e
Hi
l
l
Do
w
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t
o
w
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Co
n
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t
e
52
N/
A
39
5
.
9
42
1
N/A 0.38
Te
r
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60
38
5
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38
5
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8
41
9
.
8
0.72 0.72
N/
A
= No
t
Av
a
i
l
a
b
l
e
1.
Wa
l
l
a
c
e
Gr
o
u
p
co
m
p
l
e
t
e
d
su
r
v
e
y
to
ob
t
a
i
n
th
e
Ba
s
e
el
e
v
a
t
i
o
n
s
,
To
p
of
Ou
t
l
e
t
Pi
p
e
el
e
v
a
t
i
o
n
s
,
an
d
Ov
e
r
f
l
o
w
el
e
v
a
t
i
o
n
s
fo
r
Bi
s
h
o
p
,
Edna Saddle, Clear Well 1 & 2,
Re
s
e
r
v
o
i
r
#1
& #2
,
Ro
s
e
m
o
n
t
,
Is
l
a
y
,
an
d
Te
r
r
a
c
e
Hi
l
l
.
Al
l
ot
h
e
r
da
t
a
wa
s
pr
o
v
i
d
e
d
by
th
e
Ci
t
y
.
2.
To
t
a
l
Vo
l
u
m
e
is
ba
s
e
d
on
th
e vo
l
u
m
e
of
wa
t
e
r
be
t
w
e
e
n
th
e
ov
e
r
f
l
o
w
el
e
v
a
t
i
o
n
an
d
th
e
ba
s
e
el
e
v
a
t
i
o
n
of
th
e
ta
n
k
or
re
s
e
r
v
o
i
r
.
3.
Us
e
a
b
l
e
Vo
l
u
m
e
is
ba
s
e
d
on
th
e
vo
l
u
m
e
of
wa
t
e
r
be
t
w
e
e
n
th
e
ov
e
r
f
l
o
w
el
e
v
a
t
i
o
n
an
d
th
e
to
p
of
ou
t
l
e
t
pi
p
e
el
e
v
a
t
i
o
n
of
th
e
ta
n
k
or reservoir.
4.
Th
e
us
e
a
b
l
e
vo
l
u
m
e
fo
r
Re
s
e
r
v
o
i
r
#1
is
as
s
u
m
e
d
ba
s
e
d on
pr
e
v
i
o
u
s
do
c
u
m
e
n
t
s
.
No
re
c
o
r
d
dr
a
w
i
n
g
s
ar
e
av
a
i
l
a
b
l
e
fo
r
Re
s
e
r
v
o
i
r
#1. The top of outlet and the
ov
e
r
f
l
o
w
we
r
e
su
r
v
e
y
e
d
.
Th
e
si
d
e
sl
o
p
e
s
to
th
e
ir
r
e
g
u
l
a
r
sh
a
p
e
d
st
r
u
c
t
u
r
e
is
un
k
n
o
w
n
.
Us
i
n
g
a 3:
1
sl
o
p
e
,
th
e
re
s
e
r
v
o
i
r
ca
p
a
c
i
t
y
is approximately 8.49 MG,
wh
i
c
h
is
1.
0
MG
mo
r
e
th
a
n pr
e
v
i
o
u
s
do
c
u
m
e
n
t
s
.
To
be
co
n
s
e
r
v
a
t
i
v
e
,
th
e
lo
w
e
r
vo
l
u
m
e
wi
l
l
be
us
e
d
fo
r
al
l
ca
l
c
u
l
a
t
i
o
n
s
.
5.
Th
e
ov
e
r
f
l
o
w
el
e
v
a
t
i
o
n
of
Is
l
a
y
is
on
e
fo
o
t
hi
g
h
e
r
th
a
n
Te
r
r
a
c
e
Hi
l
l
.
Th
e
Is
l
a
y
Ta
n
k
is
un
a
b
l
e
to
fi
l
l
an
d
th
e
r
e
f
o
r
e
,
th
e
us
e
a
b
l
e
vo
l
u
m
e
of Islay is reduced by 1 ft.
6.
Ba
s
i
s
of
Be
a
r
i
n
g
s
:
Ho
r
i
z
o
nt
a
l
po
s
i
t
i
o
n
s
ar
e
ba
s
e
d
on
th
e
Ci
t
y
of
Sa
n
Lu
i
s
Ob
i
s
p
o
ho
r
i
z
o
n
t
a
l
co
n
t
r
o
l
ne
t
w
o
r
k
20
0
7
po
i
n
t
s
No
.
82
1
1
and 8092. Basis of Elevations:
Th
e
or
t
h
o
m
e
t
r
i
c
he
i
g
h
t
s
(e
l
e
v
a
t
i
o
n
s
)
we
r
e
ba
s
e
d
on
th
e
Ci
t
y
of
Sa
n
Lu
i
s
Ob
i
s
p
o
Be
n
c
h
m
a
r
k
sy
s
t
e
m
20
0
7
an
d
re
f
e
r
e
n
c
e
d
by
BM
#
3
6
7
.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐10
Table 6‐2. Existing Emergency Storage Recommendations
Tanks/Reservoirs Zone(s) Served
Estimated
Existing
Population
Storage
Recomm.
(gallons)
Rosemont Rosemont 10 1,500
Ferrini Ferrini 660 99,000 Highland
Serrano Serrano 1,050 157,500 Patricia
Clear Wells Foothill 11,900 1,785,000 Downtown
Reservoir #2 High Pressure 7,370 1,105,500
Reservoir #1
Reservoir #1
2,550 382,500 Reservoir Canyon
Andrews
Slack Street Slack 490 73,500
Edna Saddle Edna Saddle 12,100 1,815,000
Terrace Hill and
Islay Terrace Hill 6,570 985,500
Bishop Bishop 2,520 378,000 Alrita
Total 45,220 6,783,000
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐11
Table 6‐3. Existing Fire Storage Recommendations
Tanks/Reservoirs Zone(s) Served Most Stringent
Zoning
Existing
Fire Flow
(gpm)
Duration
(hours)
Storage
(gallons)
Rosemont Rosemont Residential (low) 1,500 2 180,000
Ferrini
Ferrini
Residential (low) 1,500 2 180,000
Highland
Serrano
Serrano
Schools 2,500 2 300,000
Patricia
Clear Wells
Foothill Hospital:
Unsprinklered 6,000 4 1,440,000
Downtown
Reservoir #2 High Pressure Cal Poly 5,000 4 1,200,000
Reservoir #1
Reservoir #1
Hotels 4,000 4 960,000 Reservoir Canyon
Andrews
Slack Street Slack Schools 2,500 2 300,000
Edna Saddle Edna Saddle Hotels 4,000 4 960,000
Terrace Hill and
Islay Terrace Hill Industrial 4,000 4 960,000
Bishop
Bishop
Industrial 4,000 4 960,000
Alrita
Total 7,440,000
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐12
Table 6‐4. Existing Operational Storage Recommendations
Tanks/Reservoirs Zone
Estimated
Existing
ADD
(gpm)
Existing
Storage
Recomm.
(gallons)
Rosemont Rosemont 1 360
Ferrini Ferrini 54 19,440 Highland
Serrano Serrano 86 33,960 Patricia
Clear Wells Foothill 989 356,040 Downtown
Reservoir #2 High Pressure 604 217,440
Reservoir #1
Reservoir #1
210 75,600 Reservoir
Canyon
Andrews
Slack Street Slack 40 14,400
Edna Saddle Edna Saddle 994 357,840
Terrace Hill and
Islay Terrace Hill 538 193,680
Bishop Bishop 207 74,520 Alrita
Total 3,723 1,340,280
Attachment 1
Ci
t
y
of
Sa
n
Lu
i
s
Ob
i
s
p
o
Wa
t
e
r
Ma
s
t
e
r
Pl
a
n
.
Ap
r
i
l
20
1
5
Dr
a
f
t
‐Fi
n
a
l
.
6‐13
Ta
b
l
e
6‐5.
Ex
i
s
t
i
n
g
St
o
r
a
g
e
Su
m
m
a
r
y
Ta
n
k
s
/
R
e
s
e
r
v
o
i
r
s
Zo
n
e
(
s
)
Se
r
v
e
d
St
o
r
a
g
e
Su
m
m
a
r
y
(g
a
l
s
)
St
o
r
a
g
e
Re
c
o
m
m
e
n
d
e
d
(g
a
l
s
)
To
t
a
l
Av
a
i
l
a
b
l
e
(g
a
l
s
)
Storage Surplus/Deficit (gals)
Em
e
r
g
e
n
c
y
Fi
r
e
Op
e
r
a
t
i
o
n
a
l
Ro
s
e
m
o
n
t
Ro
s
e
m
o
n
t
1,
5
0
0
18
0
,
0
0
0
36
0
18
1
,
8
6
0
35
,
0
0
0
‐146,860
Fe
r
r
i
n
i
Fe
r
r
i
n
i
99
,
0
0
0
18
0
,
0
0
0
19
,
4
4
0
29
8
,
4
4
0
16
0
,
0
0
0
‐138,440
Hi
g
h
l
a
n
d
Se
r
r
a
n
o
Se
r
r
a
n
o
15
7
,
5
0
0
30
0
,
0
0
0
33
,
9
6
0
48
8
,
4
6
0
10
0
,
0
0
0
‐388,460
Pa
t
r
i
c
i
a
Cl
e
a
r
We
l
l
s
Fo
o
t
h
i
l
l
1,
7
8
5
,
0
0
0
1,
4
4
0
,
0
0
0
35
6
,
0
4
0
3,
5
8
1
,
0
4
0
3,
9
7
0
,
0
0
0
388,960
Do
w
n
t
o
w
n
Re
s
e
r
v
o
i
r
#2
Hi
g
h
Pr
e
s
s
u
r
e
1,
1
0
5
,
5
0
0
1,
2
0
0
,
0
0
0
21
7
,
4
4
0
2,
5
2
2
,
9
4
0
7,
4
9
0
,
0
0
0
4,967,060
Re
s
e
r
v
o
i
r
#1
Re
s
e
r
v
o
i
r
#1
38
2
,
5
0
0
96
0
,
0
0
0
75
,
6
0
0
1,
4
1
8
,
1
0
0
7,
5
0
0
,
0
0
0
6,081,900
Re
s
e
r
v
o
i
r
Ca
n
y
o
n
An
d
r
e
w
s
Sl
a
c
k
St
r
e
e
t
Sl
a
c
k
73
,
5
0
0
30
0
,
0
0
0
14
,
4
0
0
38
7
,
9
0
0
70
,
0
0
0
‐317,900
Ed
n
a
Sa
d
d
l
e
Ed
n
a
Sa
d
d
l
e
1,
8
1
5
,
0
0
0
96
0
,
0
0
0
35
7
,
8
4
0
3,
1
3
2
,
8
4
0
3,
8
2
0
,
0
0
0
687,160
Te
r
r
a
c
e
Hi
l
l
an
d
Is
l
a
y
Te
r
r
a
c
e
Hi
l
l
98
5
,
5
0
0
96
0
,
0
0
0
19
3
,
6
8
0
2,
1
3
9
,
1
8
0
1,
1
0
0
,
0
0
0
‐1,039,180
Bi
s
h
o
p
Bi
s
h
o
p
37
8
,
0
0
0
96
0
,
0
0
0
74
,
5
2
0
1,
4
1
2
,
5
2
0
74
0
,
0
0
0
‐672,520
Al
r
i
t
a
To
t
a
l
6,
7
8
3
,
0
0
0
7,
4
4
0
,
0
0
0
1,
3
4
0
,
2
8
0
15
,
5
6
3
,
2
8
0
24
,
9
8
5
,
0
0
0
9,421,720
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐14
Table 6‐6. Future Emergency Storage Recommendations
Tanks/Reservoirs Zone(s) Served
Estimated
Future
Population
Storage
Recomm.
(gallons)
Rosemont Rosemont 10 1,500
Clear Wells and
Reservoir #1
Foothill
19,670 2,950,500 Andrews
Reservoir Canyon
Downtown
Reservoir #2 and
Bishop
High Pressure 11,410 1,711,500 Alrita
Edna Saddle Edna Saddle 14,390 2,158,500
Terrace Hill and Islay Terrace Hill 8,220 1,233,000
Total 53,700 8,055,000
Table 6‐7. Future Fire Storage Recommendations
Tanks/Reservoirs Zone(s) Served Most Stringent
Zoning
Future
Required
Fire Flow
(gpm)
Required
Duration
(hours)
Required
Storage
(gallons)
Rosemont Rosemont Residential (low) 1,500 2 180,000
Clear Wells and
Reservoir #1
Foothill
Hospital:
Unsprinklered 6,000 4 1,440,000
Andrews
Reservoir Canyon
Downtown
Reservoir #2 and
Bishop
High Pressure
Cal Poly 5,000 4 1,200,000
Alrita
Edna Saddle Edna Saddle Hotels 4,000 4 960,000
Terrace Hill and Islay Terrace Hill Industrial 4,000 4 960,000
Total 4,740,000
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
6‐15
Table 6‐8. Future Operational Storage Recommendations
Tanks/Reservoirs Zone(s) Served
Estimated
Future ADD
(gpm)
Storage
Recomm.
(gallons)
Rosemont Rosemont 2 720
Clear Wells and
Reservoir #1
Foothill
1,436 516,960 Andrews
Reservoir Canyon
Downtown
Reservoir #2 and Bishop High Pressure 1,129 406,440 Alrita
Edna Saddle Edna Saddle 2,551 918,360
Terrace Hill and Islay Terrace Hill 601 216,360
Total 5,719 2,058,840
Attachment 1
Ci
t
y
of
Sa
n
Lu
i
s
Ob
i
s
p
o
Wa
t
e
r
Ma
s
t
e
r
Pl
a
n
.
Ap
r
i
l
20
1
5
Dr
a
f
t
‐Fi
n
a
l
.
6‐16
Ta
b
l
e
6‐9.
Fu
t
u
r
e
St
o
r
a
g
e
Su
m
m
a
r
y
Ta
n
k
s
/
R
e
s
e
r
v
o
i
r
s
Zo
n
e
(
s
)
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# 1 and #2Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
7‐1
7: Water Pump Stations
Chapter 7 describes the existing pump stations and provides a physical and hydraulic evaluation of the
pump stations. This chapter also provides a summary of the recommended capital improvements for
the pump stations. All tables are located at the end of this chapter.
Summary of Pump Station Recommendations
Due to the proposed consolidation of the water distribution zones, the proposed master plan
improvement projects for the pump stations are reduced significantly than if the zone consolidation did
not occur. The following is a summary of each of the pump stations and any proposed master plan
improvement projects based on the recommendations to consolidate zones. If the zone consolidations
to not occur, the recommendations previously provided in the Chapter should be completed.
1. No upgrades are recommended at the Alrita Pump Station.
2. The Bishop Pump Station is proposed to be eliminated.
3. The Bressi Pump Station is proposed to be eliminated.
4. The Ferrini Pump Station is proposed to be eliminated.
5. The McCollum Pump Station is proposed to be eliminated.
6. Replace/upgrade the entire Reservoir Canyon pump station with a new pump station. Install a
larger hydro pneumatic tank or an additional smaller redundant tank, new electrical panel and
controls with alarms, new piping, new pumps, new building. Install fencing around the building
to maintain security.
7. Eliminate the Rosemont Pump Station and construct new pump station at the old Fel‐Mar Pump
Station to feed the Rosemont Tank. The old Fel‐Mar pump station was located on Fel‐Mar Drive
at Al‐Hil Drive. The new pump station should be capable of filling the recommended future
Rosemont Tank within eight hours. Construct 1,500 feet of new 8‐inch PVC from the new Fel‐
Mar Pump Station on Fel Mar Drive to 80 Highland Drive.
8. Upgrade the Transfer Pump Station electrical system and transfer switch to allow for up to three
pumps to be operated with an on‐site stand by generator. Install a new standby generator to
run a minimum of three pumps in parallel (not all starting at one time).
Pump Stations
The City owns and operates eight pump stations. Five of the eight pump stations are used to fill storage
tanks within a distribution zone. Two of the pump stations are hydro‐pneumatic pump stations,
providing pressure continuously to their respective zones. The last pump station is to provide fire flow
only (Bishop PS). Table 7‐1 summarizes the function of each of the pump stations. Table 7‐2
summarizes the design characteristics of each of the pump stations. Appendix A provides the
manufacturers’ pump curves, if available.
Alrita Pump Station
The Alrita Pump Station is located in the Alrita Zone. The pump station is fed from the Bishop Zone to
the small Alrita Zone via two 100 gpm pumps, one 1,500 gpm fire pump and two hydro‐pneumatic
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
7‐2
tanks. The purpose of the Alrita Pump Station is to sustain flow and pressure on‐demand, and to
provide fire flow to the Alrita Zone.
Bishop Pump Station
The Bishop Pump Station is located in the Bishop Zone. The Bishop Pump Station contains one 700 gpm
fire pump. Under normal conditions of the Bishop Zone, the Bishop Pump Station does not operate.
The City eliminated the booster pumps from day‐to‐day operation, which allows Reservoir #2 in the High
Pressure Zone to feed the 750,000 gallon Bishop Tank by gravity through a PRV. The fire pump is still on
standby to operate if needed to provide additional flow and pressure during low pressure or fire flow
conditions. Both the Bishop Pump Station and Bishop Tank provide fire flow service to the Bishop Zone.
Bressi Pump Station
The Bressi Pump Station is located in the Serrano Zone. The pump station is fed from Clearwells 1 and 2
in the Foothill Zone and pumps to the 100,000 gallon Serrano Tank. The Bressi Pump Station contains
two 500 gpm pumps. The purpose of the Bressi Pump Station is to fill the Serrano Tank.
Ferrini Pump Station
The Ferrini Pump Station is located in the Ferrini Zone. The pump station is fed from Clearwells 1 and 2
in the Foothill Zone and pumps to the 160,000 gallon Ferrini Tank. The Ferrini Pump Station contains
two 1,060 gpm pumps. The purpose of the Ferrini Pump Station is to fill the Ferrini Tank.
McCollum Pump Station
The McCollum Pump Station is located in the Slack Zone. The pump station is fed from Reservoir #2 in
the High Pressure Zone and pumps to the 70,000 gallon Slack Street Tank. The McCollum Pump Station
contains two pumps, 200 gpm and 600 gpm. The purpose of the McCollum Pump Station is to fill the
Slack Street Tank.
Reservoir Canyon Pump Station
The Reservoir Canyon Pump Station is located in the Reservoir Canyon Zone, which is not within the City
limits. The pump station is fed from Reservoir #1 in the Reservoir #1 Zone. The pump station boosts
water pressure through three hydro‐pneumatic tanks, which then serves the Reservoir Canyon Zone.
The zone is a fully boosted zone. The Reservoir Canyon Pump Station contains two pumps (capacity of
pumps is unknown). The purpose of the Reservoir Canyon Pump Station is to sustain pressure and
maximum day flow to the Reservoir Canyon Zone. This pump station does not provide fire flow service,
nor does the City maintain a tank that provides fire flow service to the homes within this zone per the
City’s agreement with the customers located within this zone.
Rosemont Pump Station
The Rosemont Pump Station is located in the Rosemont Zone. The pump station is fed from the
Highland Zone and pumps to the 40,000 gallon Rosemont Tank. The Rosemont Pump Station contains
two 110 gpm pumps. The purpose of the Rosemont Pump Station is to fill the Rosemont Tank.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
7‐3
Transfer Pump Station
The Transfer Pump Station is located at the Water Treatment Plant adjacent to the Clear Well Tanks.
The pump station is fed from the Clear Wells and pumps to Reservoir #2 (7.44 mg). The Transfer Pump
Station contains four 1,500 gpm pumps. The purpose of the Transfer Pump Station is to fill Reservoir #2,
assist during peak demand if needed and maintain pressure and flow if Reservoir #2 is out of service.
Hydraulic Evaluation
To evaluate the ability of each pump station to meet system demands and design parameters, a
hydraulic constraints evaluation was conducted. The hydraulic evaluation included an analysis of the
pump station to meet the respective design intent and the National Fire Protection Agency (NFPA) 22,
Standard for Water Tanks for Private Fire Protection, 2008 Edition recommendation for a tank to be
filled within eight hours by its supply source. Although the NFPA standard is not a requirement for a
public water system, this standard is a good check to determine if a pump station is adequately sized
during an emergency condition. To allow for redundancy, it is recommended that this analysis evaluate
the pump station with the largest pump out of service.
As determined previously, each of the pump stations were installed for various design parameters,
which are summarized as follows:
1. Alrita: Sustain flow and pressure under all demand conditions and provide fire flow
2. Bishop: Fire Flow Support, respond to low pressure conditions within Bishop Zone
3. Bressi: Assist during Peak Hour and Fill Serrano Tank
4. Ferrini: Assist during Peak Hour and Fill Ferrini Tank
5. McCollum: Assist during Peak Hour and Fill Slack Street Tank
6. Reservoir Canyon: Sustain pressure and provide Peak Hour Demand
7. Rosemont: Assist during Peak Hour and Fill Rosemont Tank
8. Transfer Pump Station: Assist during Peak Hour, Fill Reservoir #2 and maintain pressure and flow
if Reservoir #2 is out of service
Alrita Pump Station
The Alrita Pump Station provides continuous pressure and flow to the small Alrita Zone under all
demand conditions. The existing and future peak hour demand served by the Alrita Pump Station is 8
gpm. The Alrita Pump Station has two domestic 100 gpm pumps, which alternate to provide daily flow
and pressure to the zone. This exceeds the existing peak hour demand. Thus, the Alrita Pump Station is
adequately sized to meet existing conditions.
Since the Alrita Zone is a fully boosted zone and is not supplied by gravity flow from a tank, the Alrita
Pump Station is required to provide fire flow to the Alrita Zone. The fire flow requirement within the
Alrita Zone is 1,500 gpm. The Alrita Zone has a dedicated fire pump that provides 1,500 gpm fire flow to
the Alrita Zone during fire flow or high demand conditions. Since the Alrita Zone does not have
dedicated storage, the NFPA 22 criterion does not apply to this zone.
No upgrades to the Alrita Pump Station are required due to hydraulic deficiencies.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
7‐4
Bishop Pump Station
The Bishop Pump Station provides fire flow support to the Bishop Zone. Fire flow is also supported by
gravity flow from the Bishop Tank. The fire pump provides an additional fire flow into the distribution
system if pressures drop.
Based on the hydraulic model, with a few upgrades to the water distribution system and zone
connections, fire flow requirements can be adequately met without assistance from the Bishop Pump
Station. Thus, it is recommended that the Bishop Pump Station be eliminated (See Chapter 8).
Bressi Pump Station
The Bressi Pump Station is used to assist during peak hour demand and to fill the Serrano Tank
(100,000 gallons). The existing peak hour demand served by the Bressi Pump Station is 76 gpm. The
Bressi Pump Station has two 500 gpm pumps that alternate to fill Serrano Tank. This exceeds the
existing peak hour demand. Thus, the Bressi Pump Station is adequately sized to meet existing peak
hour demand.
With only one pump in service, under average day demand (19 gpm), the Bressi Tank would be filled in
3.4 hours [(100,000 gallons/(500‐19 gpm))/60 min/hour = 3.4 hours]. The Bressi Pump Station meets
the NFPA 22 recommendation to fill the Serrano Tank within eight hours.
No upgrades to the Bressi Pump Station are required due to hydraulic deficiencies. It should be noted
that Chapter 8 proposes to consolidate the Serrano Zone with the High Pressure Zone, thus eliminating
the Bressi Pump Station.
Ferrini Pump Station
The Ferrini Pump Station is used to assist during peak hour demand and to fill the Ferrini Tank
(160,000 gallons). The existing peak hour demand served by the Ferrini Pump Station is 86 gpm. The
Ferrini Pump Station has two 1,060 gpm pumps that alternate to fill the Ferrini Tank. However, based
on recent pump tests, the actual flow capability of one pump was only 800 gpm. This is still more than
the existing peak hour demand. Thus, the Ferrini Pump Station is adequately sized to meet existing peak
hour demand.
With only one pump in service, under average day demand (21 gpm), the Ferrini Tank would be filled in
3.4 hours [(160,000 gallons/(800‐21 gpm))/60 min/hour = 3.4 hours]. The Ferrini Pump Station meets
the recommendation to fill the Ferrini Tank within eight hours.
Even though the pump station is capable of meeting the hydraulic requirements noted above, the most
recent pump tests note the available pumping capacity is only 800 gpm, not 1,060 gpm as designed. It is
recommended that a pump test be completed on both pumps. If it is determined that the pumping
capacity is significantly less than 1,060 gpm, the pumps should be re‐built with new impellers to bring
the pumps back to original design performance capability.
However, it should be noted that Chapter 8 proposes to consolidate the Ferrini Zone with the High
Pressure Zone, thus eliminating the Ferrini Pump Station.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
7‐5
McCollum Pump Station
The McCollum Pump Station is used to fill the Slack Street Tank (70,000 gallons). It is fed by the High
Pressure Zone and Reservoir #2. There is little elevation difference between the Slack Street Tank and
Reservoir #2. The McCollum Pump Station provides a small boost (15 psi) to fill the Slack Street Tank.
The McCollum Pump Station is used to assist during peak hour demand and to fill the Slack Street Tank.
The existing peak hour demand served by the McCollum Pump Station is 160 gpm. The McCollum Pump
Station has two pumps, 200 and 600 gpm that alternate to fill Slack Tank. Both pumps are capable of
providing more than the existing peak hour demand. Thus, the McCollum Pump Station is adequately
sized to meet existing peak hour demand.
With only one pump in service, under average day demand (40 gpm), the Slack Street Tank would be
filled in 7.3 hours [(70,000 gallons/(200‐40 gpm))/60 min/hour = 7.3 hours]. With only the smaller pump
in service, the McCollum Pump Station still meets the NFPA 22 recommendation of filling the Slack
Street Tank within eight hours.
It should be noted that based on the hydraulic model, with some upgrades to the water distribution
system, Chapter 8 proposes to consolidate the Slack Zone with the High Pressure Zone, thus
eliminating the McCollum Pump Station. These upgrades are required to be completed prior to the
McCollum Pump Station being removed.
Reservoir Canyon Pump Station
The Reservoir Canyon Pump Station provides domestic flow to two residential properties. The zone is a
fully boosted zone and is served by three hydro pneumatic tanks. The hydro pneumatic tanks appear to
be undersized due to the frequent pump cycling observed by the operators and noted during a site visit
in 2012. The pumps provide sufficient flow to fill the hydro pneumatic tanks quickly.
It is recommended to install a larger hydro pneumatic tank or an additional smaller redundant tank to
reduce the cycling of the pumps.
Rosemont Pump Station
The Rosemont Pump Station is used to assist during peak hour demand and to fill the Rosemont Tank
(40,000 gallons). The existing peak hour demand served by the Rosemont Pump Station is 5 gpm. The
Rosemont Pump Station has two 100 gpm pumps that alternate to fill the Rosemont Tank. This exceeds
the existing peak hour demand. Thus, the Rosemont Pump Station is adequately sized to meet existing
peak hour demand.
With only one pump in service, under average day demand (1 gpm), the Rosemont Tank would be filled
in 6.7 hours [(40,000 gallons/(100‐1 gpm))/60 min/hour = 6.7 hours]. The Rosemont Pump Station
meets the NFPA 22 recommendation to fill the Rosemont Tank within eight hours.
Although the Rosemont Pump Station does not have any hydraulic deficiencies, it should be noted that
the Rosemont Pump Station only has 2‐3 psi suction pressure under normal operating conditions.
Chapter 8 discusses the impacts this low suction pressure has on the Highland Zone and the Highland
Zone’s ability to meet fire flow requirements. Based on this hydraulic constraint, it is recommended
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
7‐6
that the Rosemont Pump Station be eliminated and a new station be constructed at the old Fel‐Mar
Pump Station site to feed the Rosemont Tank. The new pump station should be sized to fill the
recommended new Rosemont Tank in less than eight hours.
Transfer Pump Station
The Transfer Pump Station is used to assist during peak hour demand and to fill the Reservoir #2
(7.44 mg). The Transfer Pump Station has four pumps, each capable of providing 1,500 gpm with a total
capacity of 3,610 gpm if three pumps run in parallel. The pumps alternate filling Reservoir #2. This
pump station was upgraded in 2007 with the construction of the Clearwell Tanks. The existing peak
hour demand is 2,039 gpm. The capacity of the pump station exceeds the existing peak hour demand.
Thus, the Transfer Pump Station is adequately sized to meet existing peak hour demand.
With three pumps in service, under average day demand (604 gpm), Reservoir #2 would be filled in 41
hours [(7,440,000 gallons/(3,610‐604 gpm))/60 min/hour = 41 hours]. However, Reservoir #2’s actual
storage needs are only 2,520,000 (see Table 6‐5). With the reduced storage requirements, Reservoir #2
would be filled in 13.9 hours [(2,520,000/(3,610‐604 gpm))/60 min/hour = 13.9]. The Transfer Pump
Station does not meet the NFPA 22 recommendation to fill Reservoir #2 within eight hours.
To conduct any maintenance on Reservoir #2, the City must rely on the Transfer Pump Station to serve
all demand conditions, including peak hour and fire flow, in the High Pressure Zone. The Transfer Pump
Station is unable to meet the fire flow requirements (5,000 gpm) in the High Pressure Zone. In addition,
under emergency power outage conditions, the Transfer Pump Station is only capable of running one
pump from an emergency generator. The High Pressure Zone is in a vulnerable state if Reservoir #2 is
not in operation. It is recommended to complete the following two upgrades to eliminate this
vulnerable state:
1. Construct two new tanks at Reservoir #2 site to allow either tank to be taken out of
service for maintenance (See Chapter 6 for sizing recommendations).
2. Upgrade the Transfer Pump Station electrical system to allow for up to three pumps to
be operated with an on‐site stand by generator. Install a new standby generator to
run a minimum of three pumps in parallel (not all starting at one time).
3. Complete an evaluation on the pumps to determine if the capacity of the pumps could
be increased to allow the pump station to meet fire flow requirements if Reservoir #2
were out of service.
Physical Evaluation
A physical evaluation of five of the eight pump stations was conducted by Fluid Resource Management
(FRM) in November 2012. The pump stations included in this evaluation were: Bishop, Bressi, Ferrini,
McCollum, and Reservoir Canyon. At the City’s request, Alrita, Rosemont and the Transfer Pump Station
were not included in the physical evaluation. FRM’s report is provided in Appendix B in addition to
photos of each pump station. The City Operations Staff also provided input on the physical condition of
each pump station during a site visit in 2012 with Wallace Group and City Operation’s staff. A
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
7‐7
description of the facilities and findings of the condition of each of the five water pump stations is
outlined below.
Bishop Pump Station
The Bishop Pump Station was constructed around 1951. The pump station is located in a parking lot of a
medical complex. The following observations have been noted regarding the Bishop Pump Station:
1. The jockey pump was pulled from service and only a fire pump remains in service. The fire
pump is only used to assist under fire flow or low pressure conditions. The pump station is
typically bypassed.
2. Although the building is well constructed, the front face of the building has large pane windows,
is not fenced, and is subject to vandalism. There is no roll‐up door for easy operator access to
the fire pump.
3. There is no flow meter installed.
4. Based on input from the City Operations staff, the suction and discharge piping is pitted and
rusted within the pump station. The piping cross‐section has deteriorated. Piping has a
potential to fail.
5. The electrical is in poor condition and does not meet current electrical code.
6. The pump station room has poor ventilation.
7. No SCADA is installed in the pump station.
8. If upgrades are to be made to the pump station, there is piping within the pump station that is
not used since the domestic pump was taken out of service. This piping can be removed;
however, it is not detrimental to pump station and can remain in‐tack.
The following are recommendations for upgrades to the Bishop Pump Station should it remain in
service.
1. The window panes along front face of building should be replaced with a roll‐up door to restrict
people from viewing into the pump station, provide larger opening for ease of
maintenance/servicing/repair, and to reduce vandalism. An alternative option would be to
place fencing around the facility to restrict public access to the building, but this would not
provide easy access to the operators. The alternative option would be less expensive.
2. Install new vents and a roof vent.
3. Install a flow meter.
4. Replace/upgrade the electrical and control panels and all wiring within the pump station. Bring
electrical system up to current code.
5. Install SCADA equipment and programming per the City’s SCADA consultant recommendations.
6. Replace all suction and discharge piping for fire pump within the building and underneath the
building.
7. Remove unused piping and re‐configure suction and discharge piping for the fire pump within
the pump station.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
7‐8
As noted previously, the Bishop Pump Station is recommended to be eliminated; therefore no
improvements are necessary for this pump station (See Chapter 8).
Bressi Pump Station
The Bressi Pump Station was constructed around 1967. The pump station is located on a hillside with
animals grazing around the facility. The following observations were noted regarding the Bressi Pump
Station:
1. The building is located off of the main road by approximately 50 feet. The first fence is used to
keep cattle in. The cattle fence gate is difficult for the operators to open. Although the
operators are able to drive between the two fences, there is no access driveway between the
cattle fence and the booster station building. The pump station building is surrounded by a 6‐ft
high fence with a 12‐ft gate.
2. The building is in good condition. There is no roll‐up door for easy operator access to the
pumps.
3. The discharge piping goes under the pump station and is in unknown condition. Based on input
from City Operations Staff, the buried piping is in poor condition due to age.
4. Based on input from the City Operation’s staff, the suction and discharge piping is pitted and
rusted within the pump station. The piping cross‐section has deteriorated. Piping has a
potential to fail.
5. The electrical panel and wiring is in poor condition. The system has a water pressure line
connected to the MCC panel, which is a safety hazard.
6. The booster station is controlled by hanging probes in the Serrano Tank. The wiring is a direct
bury from the tank to the booster station. The probes are antiquated and replacement parts are
difficult to ascertain.
7. No SCADA is installed in the pump station.
8. No flow meter is installed.
The following are recommendations for upgrades to the Bressi Pump Station should it remain in service.
1. Replace/upgrade the electrical and control panels and all wiring within the pump station. Bring
electrical system up to current code.
2. Install SCADA equipment and programming per the City’s SCADA consultant recommendations.
3. Install a flow meter.
4. Install new pressure transducers for pump control by tapping into exposed piping connected to
the tank thus eliminating the difficulty in accessing submerged transducers inside the tank.
5. Replace suction and discharge piping within the pump station and underneath the building.
6. Install a farm gate for access through the existing cattle fence.
As noted previously, the Bressi Pump Station is recommended to be eliminated; therefore no
improvements are necessary for this pump station (See Chapter 8).
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
7‐9
Ferrini Pump Station
The Ferrini Pump Station was constructed around 1985. The pump station is located along the west side
of Highway 1 opposite of Stenner Creek Road. The following observations were noted regarding the
Ferrini Pump Station:
1. The pump station is surrounded by standard chain link fencing. The cows use the fence as an
itching post and have bent and damaged several posts and the fence.
2. There is no flow meter installed.
3. There is no roll‐up door for easy operator access to the pumps.
4. The electrical panel and wiring is in poor condition.
5. The discharge piping is constructed under the slab of the building. The pipe is restrained
through the slab. This construction method does not provide easy repair to the piping;
however, the piping appears to be in good condition at this time.
The following are recommendations for upgrades to the Ferrini Pump Station should it remain in service.
1. Repair the damaged fencing/fence posts around the pump station. Recommend constructing a
fence with higher durability.
2. Replace/upgrade the electrical and control panels and all wiring within the pump station. Bring
electrical system up to current code.
3. Install SCADA equipment and programming per the City’s SCADA consultant recommendations.
4. Install a flow meter.
As noted previously, the Ferrini Pump Station is recommended to be eliminated; therefore no
improvements are necessary for this pump station (See Chapter 8).
McCollum Pump Station
The McCollum Pump Station was constructed around 1955. The pump station is situated tightly
between two residential properties. The following observations were noted regarding the McCollum
Pump Station:
1. The Cla‐Val is installed in a vault outside the building. The vault lid is not traffic rated. It is
often times driven over. The Cla Val is operational as a control valve, used to maintain levels
within the Slack Street Tank.
2. There is a man‐door used to access the booster station building. The door is located in a
walkway with a small retaining wall 4 feet off the door. The man‐door opens towards the street
and limits access due to inadequate space between the opened door and the retaining wall.
3. There is no fencing around the pump station for protection. Windows located in the front of
the building allow people to view inside the building and are subject to vandalism.
4. The electrical panel and wiring is in poor condition.
5. Suction and discharge header piping inside the pump station is in fair condition.
6. Suction and discharge piping enters/exists the building under the foundation. The condition of
the piping is unknown.
7. There is no flow meter installed.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
7‐10
The following are recommendations for upgrades to the McCollum Pump Station should it remain in
service.
1. Install a roll‐up door on the front side of the pump station building and re‐hang the man‐door so
the hinges are on the opposite side.
2. Install a traffic rated lid on the Cla‐Val vault.
3. Install fencing around the building. This may not be feasible due to proximity to the sidewalk
and street and residential character.
4. Install SCADA equipment and programming per the City’s SCADA consultant recommendations.
5. Install a flow meter.
As noted previously, the McCollum Pump Station is recommended to be eliminated; therefore no
improvements are necessary for this pump station (See Chapter 8).
Reservoir Canyon Pump Station
Reservoir Canyon Pump Station was constructed around 1995. The pump station is located on the
southbound side of Highway 101, just north of Miossi Road. This pump station serves two properties
outside City limits. The properties are served by a fully boosted system (on demand) with three hydro‐
pneumatic tanks supplied by the Reservoir Canyon Pump Station. The pump station only supplies
domestic demand. The following observations were noted regarding the Reservoir Canyon Pump
Station:
1. The steel building is situated behind a fence line along Highway 101.
2. The steel building is small, but functional. The building is subject to vandalism and is rusting.
The door is easy to break into.
3. Based on input from the City Operation’s staff and field observations, the piping is copper and in
poor condition. Operations Staff has made several repairs to leaking pipes.
4. The three hydro pneumatic tanks are small. Pumps run/cycle often.
5. There are no alarms on the pumps. Operations staff receive calls from the residents when the
system loses pressure, which occurs on average, monthly.
6. Electrical wiring is damaged by rodents. Electrical wiring is in poor condition.
7. The pumps are located on the floor, subject to water and flooding.
Based on the observations, the following recommendations are provided for the Reservoir Canyon
Pump Station:
1. Replace/upgrade the entire pump station with a new pump station. Install a larger hydro
pneumatic tank or an additional smaller redundant tank, new electrical panel and controls with
alarms, new piping, new pumps, new building.
2. Install fencing around the building to maintain security.
Attachment 1
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Attachment 1
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Attachment 1
THIS PAGE LEFT INTENTIONALLY BLANK
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐1
8: Water Distribution System Analysis
Chapter 8 describes the existing water distribution system, water model development and calibration,
design criteria, and overall system performances. All tables and figures are located at the end of this
chapter.
Water Distribution System
The City owns and operates a complex water distribution system that is comprised of 145 miles of water
mains that span over 10.7 square miles to serve the City’s customers. The existing water distribution
system and corresponding pressure/service zones are shown in Figure 2‐1. Figures 8‐1 through 8‐19
illustrate the existing water distribution. An inventory of the existing water main network by diameter is
summarized in Table 8‐1. Table 8‐2 provides a summary of the existing water main inventory by
material. Understanding material type is valuable as material types impact the water main’s life
expectancy.
Pressure Reducing Valves
When water system pressures become too high, pressure reducing valves (PRVs) are installed to reduce
the system pressure to safe operating levels for customers within the water distribution zone. The City
has eighteen PRVs located within the water distribution system. Some valves are active, while other
valves are inactive or normally closed. Table 8‐3 provides a summary of all of the active and inactive
PRVs and their hydraulic grade line settings.
Water System Design Requirements
A hydraulic model was developed and calibrated to analyze each zone under existing and future
conditions. The design requirements used to evaluate and identify deficiencies in the water distribution
system relate primarily to the flow and pressure delivered by the system to the customers. SWRCB‐DDW
(previously CDPH) regulates the requirements for minimum system pressures within a water distribution
system. Per the existing Waterworks Standards, Chapter 16, Section 64602, last updated March 9, 2008
by the CDPH:
a) Each distribution system shall be operated in a manner to assure that the minimum operating
pressure in the water main at the user service line connection, throughout the distribution
system, is not less than 20 pounds per square (psi) inch at all times.
b) Each new distribution system that expands the existing system service connections by more
than 20 percent or that may otherwise adversely affect the distribution system pressure shall be
designed to provide a minimum operating pressure throughout the new distribution system of
not less than 40 psi at all times excluding fire flow.
Ideally, normal operating (static) pressures should be within the range of 40 to 80 psi. This is the range
that most people find comfortable and will serve most fire sprinkler systems. For the existing system,
the design criteria for this water master plan is to recommend average day, maximum day, and peak
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐2
hour pressures to be no less than 40 psi. This falls in line with Waterwork’s intention for new water
distribution systems or existing systems to be expanded.
It should be noted that prior to this CDPH update in 2008, the required system pressure under all
conditions except fire flow was 30 psi. As noted in b) above, unless the City expands the system, the
system pressure is “grand‐fathered in” to a service pressure of 30 psi. When completing the water
model analysis, the water system was analyzed to maintain 40 psi throughout the entire distribution
system. A few locations throughout the City are unable to meet this minimum system pressure of 40 psi
due to elevation difference between the customer service and the tank that serves the home. The
Water Master Plan will evaluate the cost/benefit ratio of altering the system to improve system
pressures or to maintain the system status quo.
Pressures higher than 80 psi are acceptable within the distribution system, but should be reduced to 80
psi or lower at the service connection to prevent water hammer effects or leakage through washers and
seats within a home. Reducing system pressure also helps to conserve water within the home. The City
has several areas within the distribution system that have pressures higher than 80 psi due to elevation
differences within a distribution zone. It is recommended that all customers with service pressures
above 80 psi have individual pressure reducing valves behind the water meter (homeowner owned)
prior to entering the customers home or irrigation system.
It is also recommended to maintain water pressure within the distribution system at or below a
maximum ceiling of 150 psi. Residual pressures throughout the entire distribution system under fire
flow conditions shall be maintained at a minimum of 20 psi.
The flow requirements examined in the hydraulic model include average day demand, peak hour
demand, and fire flow plus maximum day demand. The various flow scenarios are summarized as
follows:
Average Day Demand (ADD): This flow condition is used to evaluate the system subject to the
most common conditions. The existing demands were assigned throughout the distribution
system by zone, based on the demands noted in Chapter 4. The tanks were modeled full (two
feet below overflow) during this scenario to identify the typical high conditions the City’s
customers will experience on a daily basis. In addition, all wells and booster stations turned off,
excluding the hydro‐pneumatic zones. The hydro‐pneumatic tanks were modeled at the high
pressure operating range with the booster pumps off.
Peak Hour Demand (PHD): This demand condition is used to identify system deficiencies at the
maximum domestic use. A peaking factor per Table 4‐4 of this report was applied to average day
demand to obtain peak hour demand. The tanks were modeled at ½ full during this scenario to
identify the typical low conditions the City’s customers will experience on a daily basis. In
addition, all wells and booster stations turned off, excluding the hydro‐pneumatic zones. The
hydro‐pneumatic tanks were modeled at the low pressure operating range with the booster
pumps off.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐3
Fire Flow (FF) Plus Maximum Day Demand (MDD): This demand condition is used to identify
system deficiencies under fire flow conditions. A peaking factor per Table 4‐4 of this report was
applied to average day demand to obtain maximum day demand. The tanks were modeled at ¾
full during this scenario. This tank level is most common throughout the day. In addition, all
wells and booster stations turned off, excluding the hydro‐pneumatic zones. The hydro‐
pneumatic zones were modeled with a combination of booster pumps on to represent the
maximum fire flow available within the respective hydro‐pneumatic zones. This excludes the
Reservoir Canyon Zone as the City is not required to provide fire flow demand to this zone.
Residential, commercial, industrial, and school fire flow requirements were established based
on the City Fire Department’s requirements as well as the current Uniform Fire Code (UFC),
which have become more stringent over time. In accordance with UFC requirements, no more
than 1,000 gpm was extracted from any single hydrant. In addition, only one fire flow City‐wide
is modeled at any one time.
Based on a discussion with the City Fire Department (Rodger Maggio on July 19, 2013), Table 8‐4
provides a summary of the fire flow requirements that were utilized to identify hydraulic
deficiencies throughout the water distribution system and determine fire storage
recommendations (see Tables 6‐3 and 6‐7). The fire flow requirements are based on land use.
The following parameters will be employed to identify conditions for each run of the model:
1. Domestic pressures below 40 psi for ADD, MDD, and PHD
2. Pipeline velocities exceeding five feet per second (fps) at ADD, MDD, and PHD are identified.
In general, velocities higher than five fps create excessive pressure losses.
3. Pipeline velocities exceeding 10 fps during fire flow conditions plus MDD are identified.
Pipelines near the source of the fire are identified if velocities exceeded 15 fps.
4. During fire flow model runs, service pressures below 20 psi at any node within the
distribution system were identified.
The hydraulic parameters and design criteria for the evaluation of the City’s water system are
summarized in Table 8‐5.
Water Model Development
In order to evaluate the performance of the existing water system, identify deficiencies in the network,
and recommend improvements, a computer based hydraulic model was developed using computer
program WaterCAD by Bentley Systems Inc. Elevation, pipe diameter, and pipe material for the
distribution system was obtained using the City’s GIS database. The City also provided an existing water
model, water billing records, pump station data, and record drawings.
Table 8‐6 provides a summary of the Hazen‐Williams roughness coefficients (“C” factor) for the water
mains used in the hydraulic model. The table provides a low and high “C” Factor. The low value
represents older water mains, while the higher value represents newer water mains. The “C” Factor was
adjusted for various water mains as part of the calibration process.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐4
Model Calibration
The hydraulic model was calibrated using field hydrant testing that was conducted between June 6,
2013 and June 10, 2013. The results of the fire hydrant testing are provided in Appendix C.
Each zone was analyzed in the model by simulating the field fire flow tests and comparing the resulting
modeled pressures with those observed in the field. Adjustments to pipe friction factors (Hazen‐
Williams coefficient) were made in to calibrate each zone. Zones that had a designated supply tank and
that could be hydraulically isolated from the system were calibrated individually. Zones that did not
have a designated tank and were hydraulically dependent on other zones were calibrated in concert
with their corresponding supply zones. Each zone was calibrated to within +/‐ 5 psi of the fire hydrant
tests conducted.
Existing System Performance
The performance of the City’s water distribution system was evaluated under existing conditions based
on the current pressure zone configuration. The model was evaluated under ADD, PHD, and Fire Flow
plus MDD to identify where the deficiencies are within each zone. As noted previously, there are several
opportunities to consolidate distribution zones, thus simplifying operations, reducing pumping needs,
and eliminating facilities that will soon require significant upgrades. The water system upgrades
provided below are based on the proposed zone consolidations. If the City chooses not to consolidate
the distribution zones, additional CIPs may be required and some of the proposed CIPs may no longer be
necessary. Additional analysis should be completed to quantify the impacts of not consolidating the
zones. The following recommended CIPs are based on the zone consolidation; therefore they are listed
under their proposed zone. The following is summary of the recommended zone consolidations:
1. Bishop zone: consolidate with High Pressure Zone
2. Ferrini Zone: consolidate with High Pressure Zone
3. Highland Zone: consolidate with High Pressure Zone
4. Patricia Zone: consolidate with High Pressure and Foothill Zone
5. Reservoir #1 Zone: consolidate with Foothill Zone
6. Serrano Zone: consolidate with Foothill Zone
7. Slack Zone: consolidate with Foothill Zone
The resulting consolidations will reduce the pressure zones from 16 down to 9.
Alrita Zone
Under existing conditions, the Alrita Zone is capable of meeting all demand conditions, thus no upgrades
are required.
Andrews Zone
The Andrews Zone is fed via a PRV from the High Pressure Zone. There are also two connections to the
Reservoir 1 Zone via a check valve that would allow Reservoir 1 to back feed into the Andrews Zone
under emergency conditions. The following projects are recommended for the Andrews Zone:
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐5
Cazadero PRV: The highest elevation homes in the Andrews Zone experience sub‐40 psi system
pressures during ADD. To increase service pressures in the Andrews Zone it is recommended to
increase the pressure setting at the San Luis/Cazadero PRV from 64 psi to 80 psi. This will increase
overall system pressures allowing the customers at the highest elevations to meet the minimum
pressures of 40 psi while all other homes remain under 80 psi.
San Luis Drive 2: The head loss through the existing 8‐inch water main on San Luis Drive impacts the
available fire flow to the higher elevation areas in the Andrews Zone. The available fire flow is less
than 75% of the required fire flow. To increase fire flow, it is recommended to upgrade 850 feet of
existing 8‐inch water main to 12‐inch PVC on San Luis Drive from California Boulevard to Cazadero
Street.
Downtown Zone
The Downtown Zone is fed via three PRVs from the Foothill Zone. The Downtown Zone does not have
its own storage. This zone provides fire flow to the downtown commercial area and hotels. There are a
couple of areas within the Downtown Zone that experience system pressures under 40 psi. There are
also several customers within the Downtown Zone that have service pressures over 80 psi. These
services are recommended to have individual Private PRVs.
The following projects are recommended for the Downtown Zone.
Woodbridge Zone Change: The water main on Woodbridge Street from Broad Street to Victoria
Avenue is a dead‐end 8‐inch PVC main that is unable to provide the required 4,000 gpm fire flow. It
is recommended to expand the Terrace Hill Zone to include this water main and create additional
looping to increase available fire flow. The zone change would require installation of a new gate
valve on the existing 12‐inch water main in Broad Street, on the north side of the Broad Street and
Woodbridge Street intersection. Closing this gate valve and opening the normally closed gate valve
on the south side of the intersection would create a new loop in the Terrace Hill zone along Broad,
Caudill, Victoria, and Woodbridge Streets. This project also requires decommissioning the normally
closed Broad/Caudill PRV. This PRV is currently not in use.
Dana: Dana is a long dead‐end water main and meets between 50‐75% of the fire flow
requirements. There are two options that mitigate the problem. Option 1 is to upgrade 1,150 feet
of 8‐inch water main to 10‐inch PVC on Dana Street from Nipomo Street southwest to the end of the
water main. Option 2 is to construct approximately 250 feet of new 8‐inch water main under
Brizzolara Creek to connect to the existing water main in Brizzolara Street. Option 2 would likely
need to be constructed using trenchless technology to minimize disturbance to the creek. This
option requires more environmental coordination, but eliminates a long dead‐end water main
thereby decreasing long‐term water quality concerns.
The following is a list of the 4‐inch water mains that should be upgraded to 8‐inch PVC:
Lincoln: Upgrade 1,520 feet of water main on Lincoln Street from Chorro Street to West Street,
excluding the existing 8‐inch water main from Center Street to Venable Street.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐6
Higuera: Upgrade 480 feet of water main on Higuera Street from Toro Street to Johnson Avenue.
Sendero: Upgrade 430 feet of water main on Sendero Street from Corrida Drive to Woodbridge
Street.
Edna Saddle Zone
The Edna Saddle Zone is the largest zone and serves residential, commercial, industrial and hotels. The
following projects are recommended for the Edna Saddle Zone:
Industrial Way Zone Change: The water main on Industrial Way in the Edna Saddle Zone is a long
dead‐end 8‐inch water main and is unable to provide the required 4,000 gpm fire flow. It is
recommended to extend the Edna Saddle Zone to include all the water mains between Industrial
Way and Tank Farm Road, which would provide looping needed to obtain the required fire flow on
Industrial Way. This zone change can be accomplished by opening the normally closed valve on the
west side of the Industrial Way and Sacramento Drive intersection, and closing the normally open
valve on the north side of the Industrial Way and Sacramento Drive intersection.
Calle Joaquin: The available fire flow at the south end of Calle Joaquin is between 50‐75% of the
required fire flow for this commercial area. It is recommended to upgrade 3,040 feet of 8‐inch
water main to 12‐ inch PVC on Calle Joaquin, from Los Osos Valley Road southwest to the end of the
waterline. This project is required even if the proposed development to the north of Calle Joaquin is
constructed with new loops back to the existing water main on Calle Joaquin.
Broad: The commercial properties along Broad Street from Tank Farm Road south to the Airport do
not meet the required fire flow (between 75‐100%). It is recommended to upgrade 1,700 feet of 10‐
and 12‐inch cast iron water main to 12‐inch PVC on Broad Street from Tank Farm Road to Fuller
Street.
Madonna Shopping Center: The Madonna Shopping Center has large commercial development
served with fire hydrants off of long dead‐end water mains. The available fire flow is between 50‐
75% of the required fire flow for the commercial center. Two upgrades are recommended for this
shopping center:
o Construct 690 feet of new 12‐inch PVC from the end of the 8‐inch water main on Dalidio
Drive east to the 12‐inch water main at the south end of the commercial development.
o Construct 380 feet of new 12‐inch PVC behind the Madonna Plaza shopping center
(Ralph’s and Kohls) from the end of the existing 12‐inch water main to the existing 12‐
inch water main in Madonna Road.
Foothill Zone
The Foothill Zone provides water service to residential and commercial development, which requires fire
flow between 1,500 gpm and 4,000 gpm. Most significantly, the Foothill Zone also serves Sierra Vista
Hospital, which requires 6,000 gpm fire flow. Due to elevation, there are several customers that
experience between 30 and 40 psi under normal operating conditions in the Foothill Zone.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐7
It is recommended that Reservoir 1 Zone be consolidated with the Foothill Zone. This change would
allow the Reservoir 1 tank to fill by gravity from the Clear Wells, decreasing pumping and therefore
energy usage at the Transfer Pump Station. Consolidating the two zones would reduce the useable
capacity in Reservoir 1.
The following projects are recommended for the Foothill Zone:
Hathway/Montalban PRV: As noted in Chapter 8, it is recommended to consolidate the Foothill
Zone and Reservoir 1 Zone. To complete this consolidation, the Hathway/Montalban PRV must be
relocated to the south side of Highway 101, to connect the two zones and allow the PRV to continue
to provide water to the Downtown Zone.
Bishop Peak Elementary: Bishop Peak Elementary School requires 2,500 gpm fire flow. The existing
water main is capable of providing less than 50% of this required fire flow. The water main that
serves the elementary school is 6‐ and 8‐inch asbestos cement. It is recommended to replace 580
feet of existing 8‐inch with 8‐inch PVC on Jaycee Drive, and to construct 770 feet of new 8‐inch PVC
water main from Jaycee Drive into the parking lot of Bishop Peak Elementary School, and connect
back to Craig Way. In addition, it is recommend to replace 260‐feet of existing 6‐inch with 12‐inch
PVC on Craig Way from Patricia Street to Jaycee Drive.
Westmont: To increase fire flows that are currently less than 50% of the required fire flow, it is
recommended to construct 500 feet of new 8‐inch PVC water main from the end of Westmont
Avenue at Jeffrey Drive to Stanford Drive. The project area is currently undeveloped. Therefore, the
new water main may require an easement, or if future development is proposed at this location the
new water main should follow proposed road alignments.
Highland: To increase fire flows that are currently less than 50% of the required fire flow, it is
recommended to upgrade 2,800 feet of 6‐ and 8‐inch water main to 12‐inch PVC on Highland Drive
from Santa Rosa Street (Highway 1) to Patricia Drive.
La Entrada 2: Homes on La Entrada Avenue receive less than 50% of the required fire flow. It is
recommended to upgrade 1,100 feet of 6‐inch water main to 8‐inch PVC on La Entrada Avenue from
the La Entrada/Catalina PRV at Catalina Drive to Foothill Boulevard. It is also recommended to
abandon the 8‐inch water mains that run through backyard easements just east of La Entrada from
Foothill Boulevard to Ramona Drive and from Del Mar Court to La Entrada Avenue. To maintain
looping, the water main in the backyard easement between Ramona and Del Mar Court should
remain.
Murray: Sierra Vista Hospital is an essential facility and requires a fire flow of 6,000 gpm. Several
water mains surrounding the hospital are under‐sized and provide less than 50% of the required fire
flow. The following upgrades are recommended to be completed:
o Upgrade 700 feet of 6‐ and 8‐inch to 12‐inch PVC on Murray Street from Santa Rosa
Street to Casa Street.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐8
o Upgrade 900 feet of 4‐ and 6‐inch to 12‐inch PVC on Casa Street, north of Murray Street
and connecting to the existing 10‐inch main just south of Deseret Place.
Chorro: The Foothill Zone has four dead end mains as a result of closed gate valves used to separate
the Foothill Zone from the Downtown Zone. The dead end mains are located on Meinecke Avenue
and Murray Street at the intersection with Chorro Street. It is recommended to construct new
water main at these intersections to connect the Foothill Zone across Chorro Street, and abandon
the portion of water main that connects to the Downtown Zone. Approximately 100 feet of new 8‐
inch PVC is required for this project.
Swazey Zone Boundary Change: The Terrace Hill Zone serves the homes on Swazey Street and
Rachel Street via a long dead‐end 8‐inch water main, which is unable to provide the required 1,500
gpm fire flow. It is recommended to modify the zone boundary and include Swazey Street and
Rachel Street into the Foothill Zone. This change significantly decreases the length of the dead‐end
main, thereby increasing available fire flow. The zone change requires the installation of a new gate
valve on the existing 8‐inch water main in Rachel Street, midway between Jennifer Street and
Florence Avenue. Closing this new valve and opening the normally closed gate valve at the Swazey
Street and Jennifer Street intersection will bring Swazey Street and the north half of Rachel Street
into the new Foothill zone (existing Reservoir 1 zone).
Olive: There are several hotels on Olive Street that currently receive between 50‐75% fire flow
capacity due to the long dead‐end 8‐inch water main that serves these properties. There are two
options for this upgrade. Option 1 is to upgrade 800 feet of 8‐inch to 12‐inch PVC on Olive Street,
from Santa Rosa Street (Highway 1) to the last fire hydrant on Olive Street. Option 2 is to construct
800 feet of new 8‐inch PVC water main in a new easement through the parking lots behind the
Rodeway Inn and the restaurants and connect back to Santa Rosa Street. The new 8‐inch water
main option eliminates a long dead‐end water main and thereby decreases water quality concerns.
The 8‐inch option also minimizes construction on Olive Street, which is the access to the on‐ramp to
Highway 101 South.
Garfield: The commercial properties on Garfield currently receive between 50‐75% fire flow
required. It is recommended to upgrade 310 feet of 8‐inch to 12‐inch PVC on Garfield Street from
Henderson Street to Monterey Street.
Rosita: The customers in this area receive between 50‐75% of the required fire flow. It is
recommended to upgrade 400 feet of 4‐inch to 8‐inch PVC on Rosita Street from Cerro Romauldo to
Foothill Boulevard.
The following is a list of the 4‐inch water mains that should be upgraded to 8‐inch PVC:
Craig & Christina: Upgrade 1,360 feet of water main on Craig Way from Patricia Drive to Jeffrey
Drive and on Christina Way from Craig Way to Warren Way.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐9
La Canada: Upgrade 850 feet of 4‐inch and 6‐inch water main on La Canada Drive from Cerro
Romauldo to Tolosa Way.
Johnson 2: Upgrade 370 feet of water main on Johnson Avenue from Peach Street to Mill Street.
Mill 2: Upgrade 520 feet of pipe on Mill Street from Johnson Avenue to Pepper Street.
High Pressure Zone
The High Pressure Zone has several zones being consolidated into this zone, including the Slack, Bishop,
Serrano, Patricia, Highland, and Ferrini Zones. There are several water main upgrades that are required
before the consolidation occurs. The following projects are recommended for the High Pressure Zone:
Longview: The existing Slack Zone has several long dead‐end mains. It is recommended to install a
new gate valve on the existing 6‐inch water main in Longview Lane, on the north side of the
Longview and Slack Street intersection. Closing this new gate valve and also closing the existing
valve on the south side of the Longview Lane and Albert Drive intersection while opening the
normally closed valve on the east side of the Longview Lane and Slack Street intersection will create
a new loop in the Slack zone between Slack Street, Longview Lane, and Albert Drive. This change
will create a new dead‐end main in the High Pressure Zone on Longview Lane. However, additional
recommended projects will allow for the consolidation of the Slack Zone and High Pressure zone,
therefore this new dead‐end main would be a temporary condition.
Fredericks: This project is required to be completed prior to eliminating the McCollum Pump Station
in the Slack Zone. The Slack Zone receives less than 50% of its fire flow capacity. The following
projects are recommended, to replace old tuberculated cast iron pipe with new PVC:
o Upgrade 330 feet of 12‐inch cast iron to 12‐inch PVC on Hathway Avenue from
California Boulevard to Fredericks Street.
o Upgrade 2,490 feet of 12‐inch cast iron to 12‐inch PVC on Fredericks Street from
Hathway Avenue to Grand Avenue.
McCollum: The existing Slack Zone has several areas that receive less than 50% of the required fire
flow. It is recommended to upgrade 850 feet of 4‐ and 6‐inch water main to 8‐inch PVC on
McCollum Street, from Albert Drive to Grand Avenue.
Bishop Consolidation: The Bishop Zone parallels the High Pressure Zone on Johnson Avenue near
Lizzie Street. It is recommended to connect the two zones at the intersection of Johnson Avenue
and Lizzie Street, Iris Street, Ella Street and Fixlini Street. Also, connect the two zones at the
intersection of Lizzie Street at Fixlini Street. All connections should be 8‐inch PVC. The total length
of new 8‐inch water main is approximately 200 feet. This project should be completed prior to
removing the Bishop Pump Station from service.
Stenner Creek: To consolidate the High Pressure Zone with the Ferrini Zone, it is recommended to
construct 2,800 feet of new 12‐inch PVC on Stenner Creek Road from Mount Bishop Road to
Highway 1, past the Ferrini Pump Station, and up the hill to Montrose Drive. This project will
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐10
upgrade the existing 10‐inch ductile iron water main between the Ferrini Pump Station and
Montrose Drive.
Serrano Consolidation: To consolidate the High Pressure Zone with the Serrano Zone, it is
recommended to construct 7,200 feet of 12‐inch PVC from Highway 1 at Foothill Boulevard to
Hermosa Way at Luneta Drive. Portions of this alignment include upgrading existing 4‐ and 8‐inch
cast iron and asbestos cement mains to new 12‐inch PVC. The exact alignment for this transmission
main can be determined by the City at the time of final design. In addition, it is recommended to
construct 400 feet of new 8‐inch PVC on Luneta Drive from Rafael Way to Tassajara Drive to create a
new loop in the Foothill zone. Following construction of the new water mains, the existing normally
closed valves that separate the Foothill Zone from the Serrano zone on Rafael Way and Tassajara
Drive should be opened.
Patricia: To consolidate the north half of the Patricia Zone with the High Pressure Zone and the
Foothill Zone, it is recommended to construct the following:
o Install 1,080 feet of new 12‐inch PVC on Cerro Romauldo from Patricia Drive to Los
Cerros Drive.
o Install 1,130 feet of new 12‐inch PVC on Patricia Drive from Cerro Romauldo to Highland
Drive.
o Install 270 feet of new 8‐inch PVC on Patricia Drive from Highland Drive to Fel‐Mar
Drive.
o Upgrade 280 feet of 6‐inch to 8‐inch PVC on Highland Drive from Fel‐Mar Drive to 113
Highland Drive.
In addition to the above water main upgrades, all normally closed gate valves north of Foothill
Boulevard should be opened to consolidate the Patricia and Foothill zones. With the construction of
the new water mains, the homes at the Cerro Romauldo and Los Cerros Drive intersection should be
tied over to the new High Pressure zone with new Private PRVs on the service lines. With these
recommended upgrades the remaining Patricia Zone south of Foothill Boulevard will continue to be
supplied water through the La Entrada/Catalina PRV. To isolate the Patricia Zone it is required to
close the existing gate valves on the south side of Foothill Boulevard at La Entrada Avenue and at
the waterline that runs in a backyard easement between Foothill Boulevard and Ramona Drive.
La Entrada 1: To consolidate the south half of the Patricia Zone with the High Pressure and Foothill
zones, and to provide sufficient fire flow to the consolidated zones, it is recommended to complete
the following projects:
o Upgrade 880 feet of 6‐ and 8‐inch water main to 12‐inch PVC on La Entrada Ave from
Hermosa Way to San Jose Court.
o Install 1,420 feet of new 12‐inch PVC on La Entrada from San Jose Court to Foothill
Boulevard, across Foothill Boulevard, and continuing up Patricia Drive to Cerro
Romauldo.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐11
With this zone consolidation it is recommended for the La Entrada/Catalina PRV to remain in
service, to provide redundancy for the Foothill Zone. However, the PRV setting will need to be
adjusted to 35 psi.
Slack: The existing Slack Zone has several areas that receive less than 50% of the required fire flow.
It is recommended to upgrade 640 feet of 6‐inch water main to 8‐inch PVC on Slack Street from
Henderson Avenue to the Slack Street Tank.
Hillcrest: In order to increase fire flow to the expanded High Pressure Zone and to eliminate a long
dead‐end water main, it is recommended to construct 220 feet of new 8‐inch PVC from the existing
8‐inch water main at the end of Hillcrest Place to connect to the 16‐inch water main on California
Boulevard.
El Paseo: The homes at the end of El Paseo and El Cerrito have pressures less than 30 psi and receive
fire flows between 75‐100% of the required fire flow. It is recommended to complete the following
upgrades:
o Upgrade 290 feet of 8‐inch to 10‐inch PVC on El Paseo Court from Flora Street to El
Cerrito.
o Upgrade 670 feet of 8‐inch ductile iron to 8‐inch PVC on El Cerrito Court from El Paseo
Court to the end of the water main (end of cul‐de‐sac).
Boulevard Del Campo: Due to elevation, the homes on Boulevard Del Campo have less than 30 psi
and receive less than 50% of the required fire flow. It is recommended to expand the High Pressure
zone to include these homes, to increase service pressure and available fire flow. To make this zone
change, it is recommended to construct approximately 550 feet of new 8‐inch PVC water main from
Bishop Street south along Boulevard Del Camp to Fletcher Avenue, and connect the existing service
lines and fire hydrants to the new water main. The new water main from Boulevard Del Campo to
Bishop Street will require a new backyard easement. The existing water main serving the Terrace
Hill Zone will remain in place.
Wilding: The homes on Skylark Lane receive fire flow less than 50% of the required fire flow. To
increase pressures and available fire flow, it is recommended to upgrade 600 feet of 6‐inch to 8‐inch
PVC on Wilding Lane from 2000 Wilding Lane to Skylark Lane. This project includes replacement of
the existing main that is located in a backyard easement between Wilding Lane and Skylark Lane.
Al‐Hil: The available fire flow to residential customers in this area is less than 50% of the required
fire flow. The following projects are recommended to increase fire flow and improve reliability of
the new High Pressure Zone:
o Upgrade 480 feet of 8‐inch cast iron to 8‐inch PVC on Patricia Drive from Patricia Court
to Clover Drive.
o Upgrade 500 feet of 8‐inch cast iron to 12‐inch PVC in the backyard easement between
Patricia Drive and Al‐Hil Drive
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐12
Clover: The available fire flow to residential customers in this area is less than 50% of the required
fire flow. The following projects are recommended:
o Upgrade 690 feet of 8‐inch cast iron to 8‐inch PVC on Clover Drive from Patricia Drive to
Pasatiempo Drive.
o Upgrade 440 feet of 8‐inch cast iron to 8‐inch PVC on Pasatiempo Drive from Mira Sol
Drive to Clover Drive.
Laurel: The commercial properties on Laurel Lane receive between 50‐75% of the required fire flow.
It is recommended to upgrade 1,000 feet of 6‐inch to 8‐inch PVC on Laurel Lane from Johnson
Avenue to 1248 Laurel Lane (zone break). It is also recommended to install a new fire hydrant at the
zone break to meet the City’s fire hydrant spacing requirements.
Alrita: The homes at the end of Alrita Street have pressures less than 40 psi. To improve system
pressures, it is recommended to upgrade 420 feet of 8‐inch cast iron to 8‐inch PVC on Alrita Street
from Flora Street to Bahia Court.
Flora: There are multiple services within the High Pressure Zone (old Bishop Zone) with service
pressure less than 40 psi due to elevations within the Zone. Under fire flow conditions, these homes
receive between 75‐100% of the fire flow requirements. It is recommended to upgrade 820 feet of
12‐inch cast iron to 14‐inch PVC on Flora Street from Bishop Street to Bishop Tank. This project will
increase fire flow and minimize head loss between the Bishop Tank and the distribution system.
Foothill: The east end of Foothill Boulevard requires 2,000 gpm to serve existing high density
residential development. Under existing conditions, the water main provides between 75‐100% of
the required fire flow. It is recommended to upgrade 670 feet of 6‐inch to 8‐inch PVC on Foothill
Boulevard from Crandall Way east to the end of the line.
The following is a list of the 4‐inch water mains that should be upgraded to 8‐inch PVC:
Loomis: Upgrade 620 feet of pipe on Loomis Street from Buena Vista Avenue to Santa Ynez Avenue.
Reservoir Canyon Zone
Under existing conditions, the water distribution system is capable of meeting average day, maximum
day and peak hour demands. The City does not provide fire flow to this zone. No distribution system
projects are required.
Rosemont Zone
Under existing conditions, the Rosemont Zone is capable of meeting all demand conditions, thus not
requiring any upgrades. However, due to constraints in the Highland Zone, it is recommended to
construct a new pump station at the old Fel‐Mar Pump Station site and abandon the Rosemont Pump
Station (See Chapter 7). With the construction of the Fel‐Mar Pump Station it is recommended to
modify the Highland and Rosemont Zone boundaries, extending the Rosemont Zone boundary to serve
additional homes along Highland Drive. The new Rosemont Zone will extend to approximately 80
Highland Drive.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐13
Terrace Hill Zone
The following projects are recommended for the Terrace Hill Zone:
Bishop: The Terrace Hill Zone has high industrial fire flow requirements throughout the distribution
zone. All demand from the Terrace Hill Tank flows through a 16‐inch cast iron water main which
provides between 50‐75% of the required fire flow. To increase fire flow it is recommended to
construct a new loop in the system, comprised of 580 feet of new 8‐inch PVC water main on Bishop
Street from Terrace Hill Tank to Florence Avenue.
Mutsuhito: To increase fire flow to the industrial buildings on Broad Street, which currently receive
between 50‐75% fire flow, it is recommended to complete the following upgrades:
o Upgrade 840 feet of 8‐inch water main to 12‐inch PVC on Mutsuhito Avenue from Broad
Street to Garibaldi Avenue.
o Construct 500 feet of new 12‐inch PVC in a new easement through the parking lot
between Garibaldi Avenue and McMillan Avenue, connecting to the existing water main
in McMillan Avenue.
Greta: Upgrade 530 feet of 4‐inch water main to 8‐inch PVC on Greta Place from Augusta Place to
Sydney Street.
Future System Performance
The performance of the City’s water distribution system was evaluated under future demand conditions,
including the Specific Plan areas. The model was evaluated under ADD, PHD, and Fire Flow plus MDD.
The water distribution system was modeled with all of the proposed projects that were identified as
existing deficiencies completed. With the proposed upgrades complete and in place to correct existing
deficiencies, the City’s water distribution system did not have any additional projects that were required
to meet future distribution system needs.
Since the timeframe for the construction of future development is unknown, it is recommended that as
development is proposed, an evaluation be completed to identify which of the recommended projects
are required to be completed to adequately serve the proposed development. This may dictate the
priority and timing of a recommended CIP project in the future. In addition, it should be noted the
improvements to the existing water distribution system provide significant benefit to future
development, ensuring that the water distribution system is capable of providing required fire flow and
system pressures to future development.
Specific Plan Areas
The Specific Plan Areas (Airport Area, Orcutt Area, San Luis Ranch, Margarita) were modeled with
assumptions on the water main layout and the proposed land uses based on project information
available at the time of this report. Figure 8‐20 provides an overview of the assumed water main layout
based on the road network, and the recommended pipe diameters based on the required fire flow for
the proposed Specific Plan Areas. The ancillary piping network serving the Specific Plan Areas should be
a minimum of 8‐inch diameter and are recommended being looped, minimizing any long dead‐end
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐14
water mains. As more detailed design for each Specific Plan Area is available, the water model should be
updated to confirm water main layout and pipe diameter, to ensure that the proposed water
distribution system is able to provide sufficient pressure and fire flow.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐15
Table 8‐1. Existing Water Main Inventory
by Diameter
Diameter
(inches)
Length
Feet Miles
4 9,350 1.8
6 107,850 20.4
8 365,900 69.3
10 69,400 13.1
12 123,150 23.3
14 9,100 1.7
16 29,800 5.6
18 7,750 1.5
20 18,050 3.4
24 18,500 3.5
27 4,500 0.9
30 3,350 0.6
Total 766,700 145.2
Table 8‐2. Existing Water Main Inventory by
Material
Material Length
Feet Miles
PVC 328,200 62.2
Cast Iron 208,500 39.5
Ductile Iron 109,000 20.6
Asbestos Cement 96,700 18.3
Concrete Cylinder
Pipe 20,550 3.9
Steel 3,750 0.7
Total 766,700 145.2
Attachment 1
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40
6
44
Terrace Hill Active
Te
r
r
a
c
e
Hi
l
l
PR
V
38
4
16
54
8
74
Hi
g
h
Pr
e
s
s
u
r
e
40
7
13
Terrace Hill Active
Sa
n
Lu
i
s
Dr
i
v
e
/
C
a
z
a
d
e
r
o
PR
V
26
4
6
54
9
12
6
Hi
g
h
Pr
e
s
s
u
r
e
43
0
73
Andrews Active
Ca
l
i
f
o
r
n
i
a
/
M
o
n
t
e
r
e
y
PR
V
25
0
12
55
0
13
2
Hi
g
h
Pr
e
s
s
u
r
e
42
9
79
Reservoir #1 Active
Gr
a
n
d
/
W
i
l
s
o
n
PR
V
29
6
10
55
0
11
3
Hi
g
h
Pr
e
s
s
u
r
e
42
9
59
Reservoir #1 Active
El
l
a
/
B
i
n
n
s
PR
V
29
4
8
54
8
11
3
Hi
g
h
Pr
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s
s
u
r
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42
9
60
Reservoir #1 Active
Sk
y
l
i
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e
/
M
i
r
a
So
l
PR
V
36
8
8
58
0
93
Fe
r
r
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i
54
7
78
Highland Active
Pa
t
r
i
c
i
a
PR
V
34
4
6
58
0
10
4
Fe
r
r
i
n
i
54
7
88
Highland Active
Fo
o
t
h
i
l
l
/
R
a
i
l
r
o
a
d
PR
V
26
8
14
55
0
12
5
Hi
g
h
Pr
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s
s
u
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41
8
69
Foothill Inactive
Sa
n
Lu
i
s
Dr
i
v
e
/
J
o
h
n
s
o
n
PR
V
24
5
6
54
9
13
5
Hi
g
h
Pr
e
s
s
u
r
e
42
9
81
Reservoir #1 Active
Ma
d
o
n
n
a
/
H
i
g
u
e
r
a
15
7
16
35
8
93
Do
w
n
t
o
w
n
34
5
81
Edna Saddle Active
Ha
t
h
w
a
y
/
M
o
n
t
a
l
b
o
n
23
0
10
42
8
86
Fo
o
t
h
i
l
l
37
2
61
Downtown Active
Ha
t
h
w
a
y
/
M
u
r
r
a
y
24
6
8
42
8
79
Hi
g
h
Pr
e
s
s
u
r
e
42
8
79
Foothill Inactive
Co
n
t
r
o
l
Va
l
v
e
s
Bu
l
l
o
c
k
/
I
n
d
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s
t
r
i
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l
20
1
12
Is
o
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a
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Is
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Zo
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fr
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Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐17
Table 8‐4. Fire Flow Requirements by Zoning
Zoning Fire Flow
(gpm)
Duration
(hours) Notes
Residential
(low and medium density) 1,500 2
Residential
(high density) 2,000 2
Neighborhood Commercial 1,500 2 Commercial businesses within
residential neighborhoods
Commercial 2,500 2
All other commercial not
identified in Neighborhood or
Big Box
Big Box Commercial 4,000 4
Large square footage
commercial buildings (Home
Depot, Costco, Target, Madonna
Center)
Industrial 4,000 4
Hotels 4,000 4 Large hotels (Embassy Suites,
Marriot, etc)
Hospital: Unsprinklered 6,000 4 Sierra Vista Hospital
Hospital: Sprinklered 2,375 4 French Hospital
Churches 2,500 2
Schools 2,500 2
Cal Poly1 5,000 4
1 This Water Master Plan will evaluate the City’s ability to provide 5,000 gpm to Cal Poly’s meter. This Water
Master Plan will not evaluate the water distribution system on campus, which is operated and maintained by Cal
Poly.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐18
Table 8‐5. Summary of Hydraulic Parameters and Design Criteria
Hydraulic Parameters
and Design Criteria
Value Standard
Fire Flow Requirements See Table 8‐4
Uniform Fire Code and
City of San Luis Obispo
Fire Department and City
Standards
Maximum Day Demand
Factor 1.5 times ADD
City of San Luis Obispo
Water Treatment Plant
Records (October 4, 2012)
Peak Hour Demand
Factor
Varies by Zone, See Table 4‐4
(3.375 or 4.0 times ADD)
Title 22 and Metcalf &
Eddy design handbook
“Wastewater Engineering,
Treatment and Resource
Recovery, Fifth Edition”,
2014
Minimum System
Pressure at ADD, MDD,
and PHD
40 psi
California Department of
Public Health
Maximum System
Pressure at ADD, MDD,
and PHD
150 psi
(80 psi at water service recommended.
Install service PRV if above 80 psi)
Minimum System
Pressure at FF plus MDD 20 psi
Maximum Pipeline
Velocity at ADD, MDD,
and PHD
<5 fps
Maximum Pipeline
Velocity at FF < 10 fps (<15 fps near source of fire)
Fire Hydrant Spacing
Residential: Maximum 500‐feet, except
at dead‐end streets, it shall be no more
than 400‐feet
Commercial: Maximum 250‐feet
2011 City Standards
Pipe Diameter All new water mains must be 8‐inch or
greater. 2011 City Standards
Valving
No shut down of greater than 500 feet
in high‐value districts or greater than
800 feet in other sections.
2011 City Standards
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
8‐19
Table 8‐6. Modeled Hazen‐William’s “C” Factors
Material “C” Factor
Low High
Asbestos Cement 130 130
Concrete Cylinder
Pipe 130 130
Cast Iron 70 70
Ductile Iron 70 120
PVC 140 140
Steel 90 90
Attachment 1
THIS PAGE LEFT INTENTIONALLY BLANK
Attachment 1
"5"5 "5
SKYLINE/MIRASOL PRV
SK
Y
LI
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TW
I
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I
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MIRA SOL
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C
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K
P
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A
T
I
E
M
P
O
FERRINI
FerriniZone
HighPressureZone
STATE
HIGH
W
AY1
HIG
H
W
A
Y
1
M
O
U
N
T
B
I
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H
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P
PIN
N
A
C
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E
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PASEO
DECABALLO
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
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16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-1
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
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PA
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F
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A
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Attachment 1
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C
H
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F
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FOOTHILL
VE
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PATRICIA PRV
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SKYLINE/MIRASOL PRV
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SK
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FELTON
TOLOSA
DEL MAR
P
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TW
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MIRA SOL
MARLENE
DALY
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A
SA
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A
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DEL NORTE
P
A
T
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I
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CLOVER
P
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FEL-MAR
HIGHLAND
WESTMONT
C
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CERRO ROMAULDO
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BR
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ROSEMONT
FERRINITANK
ROSEMONTTANK
FerriniZone
RosemontZone
Highland
Zone
PatriciaZone FoothillZone
HIGHLAND
S
T
A
T
E
H
I
G
H
W
A
Y
1
WES
TCREEK
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-2
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
E
LE
F
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IN
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T
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A
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BL
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Attachment 1
"5
"5
"5
"5
C
H
O
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R
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GR
A
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CA
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STAFFORDC
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ROUGEOT
BE
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MEINECKE
B
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FOOTHILL/RAILROAD PRVN/C
CHORRO/FOOTHILL PRV
CAL POLYSTATE UNIVERSITY
FOOTHILL
C
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A
C
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A
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FOOTH
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A
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HA
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W
A
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LO
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W
FREDERICKS
MCCOLLUM
HOPE
GR
A
N
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N
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S
O
N
SLACK
C
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MURRAY ST
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N
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Foothill Zone High Pressure Zone
MCCOLLUM
FoothillZone SlackZone
DowntownZone
HighPressureZone
V
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I
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S
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T
A
I
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EAST CREEK
HIGHLAND
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CANYON
K
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D
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C
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T
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PINNACLE
S
EUCALYPTUS
C
O
L
L
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G
E
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-3
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
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LE
F
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BL
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Attachment 1
MIOSSI
HE
N
D
E
R
S
O
N
FOX
H
O
L
L
O
W
RESERVOIR 1
RESERVOIRCANYON
SLACKTANK
ReservoirCanyon ZoneSlackZoneReservoir1 Zone
MIOSSI
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-4
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
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PA
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F
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IN
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T
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A
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Attachment 1
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VE
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BR
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W
BR
I
Z
Z
O
L
A
R
A
BRESSI
SERRANOTANK
PatriciaZone
FoothillZone
SerranoZone
DowntownZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-5
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
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PA
G
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LE
F
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IN
T
E
N
T
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A
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L
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Attachment 1
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"5
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GARFIELD
GR
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Foothill Zone High Pressure Zone
Downtown Zone
Andrews Street ZoneReservoir 1 Zone
FoothillZone
AndrewsStreet Zone
SlackZone
Bishop
Zone
DowntownZone
HighPressureZone
Reservoir1 Zone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-6
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
SAN LUIS/CAZADEROPRV
CHECK VALVE
SAN LUIS/JOHNSONPRV
W
I
L
D
I
N
G
S
K
Y
L
A
R
K
FOX HOLLOW
SAN
L
U
I
S
CAZA
D
E
R
O
SAN LU
I
S
CON
E
J
O
COR
R
A
L
I
T
O
S
IRIS FI
X
L
I
N
I
Andrews Street Zone
AndrewsStreetZone
SlackZone
Bishop
Zone
Reservoir1 Zone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-7
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
LO
S
O
S
O
S
V
A
L
L
E
Y
LO
S
O
S
O
S
V
A
L
L
E
Y
R
D
DE
L
R
I
O
A
V
E
DIAB
L
O
VI
S
T
A
D
E
L
L
A
G
O
DE
L
R
I
O
LAGU
N
A
EdnaSaddleZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-8
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
"5
MADONNA/HIGUERAPRV
PACIF
I
C
A
R
C
H
E
R
C
A
R
M
E
L
B
E
A
C
H
CY
P
R
E
S
S
BR
O
O
K
PR
I
C
E
HIGUE
R
A
BE
E
B
E
E
BRIDGE
PA
R
K
E
R
DANA
NIPOMO
MADO
N
N
A
HI
G
U
E
R
A
HIG
U
E
R
A
PACIF
I
C
BR
I
Z
Z
O
L
A
R
A
EX
P
O
S
I
T
I
O
N
EdnaSaddleZone
DowntownZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-9
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
"5
"5"5
"5
"5
ELLA/BINNSPRV
BROAD/CAUDILLPRV (N/C)
PACIF
I
C
ME
A
D
O
W
RAI
L
R
O
A
D
NI
P
O
M
O
BRANCH
EM
I
L
Y
LA
VINED
A
HIGH
HUMBE
R
T
SE
N
D
E
R
O
CAM
D
E
N
J
O
H
N
S
O
N
A
R
C
H
E
R
MITCHELL
H
E
N
R
Y
R
U
T
H
P
A
R
K
L
A
N
D
W
I
L
D
I
N
G
UPHAM
KI
N
G
Mc
M
I
L
L
A
N
RA
C
H
E
L
SA
N
T
A
B
A
R
B
A
R
A
BUCHO
N
SOUTH
C
A
R
M
E
L
ISLAY
FRANC
I
S
SYDN
E
Y
LEFF
GA
I
L
CORRIDA
B
E
A
C
H
G
A
R
D
E
N
BU
S
H
N
E
L
L
VI
C
T
O
R
I
A
LE
O
N
A
ELLA
FUNSTON
PISMO
CH
O
R
R
O
HU
T
T
O
N
HA
R
R
I
S
CY
P
R
E
S
S
PR
I
C
E
SANDERCOCK
LA
C
I
T
A
SAN
MARCO
S
HIGUE
R
A
SW
A
Z
E
Y
S
K
Y
L
A
R
K
A
U
G
U
S
T
A
LA
W
T
O
N
IRIS
LEX
I
N
G
T
O
N
LAWRENCE BED
F
O
R
D
S
U
N
S
E
T
BRIDGE
SI
E
R
R
A
PISMONIPOMO
PACIF
I
C
B
R
O
A
D
WOODBRIDGE
EX
P
O
S
I
T
I
O
N
B
R
O
A
D
BO
U
L
E
V
A
R
D
D
E
L
C
A
M
P
O
FLORENCE
BISH
O
P
H
E
L
E
N
A
REBA
G
R
E
T
A
SYDNE
Y
IRIS FI
X
L
I
N
I
F
L
O
R
A
SYDNE
Y
FLOR
A
MUTSUHITO
V
I
C
T
O
R
I
A
R
A
I
L
R
O
A
D
LAU
R
E
L
Downtown Zone
BISHOP
TERRACE HILL TANK
Bishop
Zone
TerraceHill Zone
DowntownZone
HighPressureZone
Reservoir1 Zone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-10
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
"5
LA
VINED
A
CAM
D
E
N
ROS
E
P
A
R
K
L
A
N
D
CARLA
LA
C
I
T
A
SAN
MARCO
S
EL
CAS
E
R
I
O
CO
L
I
N
A
BAR
R
A
N
C
A
SY
C
A
M
O
R
E
LEX
I
N
G
T
O
N
BED
F
O
R
D
S
U
N
S
E
T
HARMONY
SYDNE
Y
F
L
O
R
A
SYDNE
Y
EL PA
S
E
O
EL
C
E
R
R
I
T
O
ALR
I
T
A
LAU
R
E
L
JOHNS
O
N
FLOR
A
LAU
R
E
L
SOUTH
W
O
O
D
SOUTHWOOD
ALRITA
BISHOPTANK
AlritaZone
Bishop
Zone
TerraceHill Zone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-11
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
FS-1
LO
S
O
S
O
S
V
A
L
L
E
Y
DEL RIO AVE
DE
L
R
I
O
PREF
U
M
O
C
A
N
Y
O
N
LAGU
N
A
OCEA
N
A
I
R
E
NEW
P
O
R
T
ROYA
L
MADONN
A
L
O
S
O
S
O
S
V
A
L
L
E
Y
EdnaSaddleZone CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-12
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
FS-1
DA
L
I
D
I
O
MADONN
A
MARGARITA
ZACA
LOMABONITAEL
M
E
R
C
A
D
O
PRADO
ELK
S
MADONNA HIGUERA
NEW
P
O
R
T
PRAD
O
S
H
I
G
U
E
R
A
OC
E
A
N
A
I
R
E
CAYUC
O
S
L
O
S
O
S
O
S
V
A
L
L
E
Y
L
O
S
O
S
O
S
V
A
L
L
E
Y
EdnaSaddleZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-13
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
"5
"5"5
B
R
O
A
D
HUMBE
R
T
SENDERO
CAM
D
E
N
MITCHELL
PERKIN
S
Mc
M
I
L
L
A
N
FRANCISGAIL
INDUSTR
I
A
L
RICAR
D
O
SWEEN
E
Y
STONERIDGE
LEX
I
N
G
T
O
N
CAPIT
O
L
I
O
R
O
C
K
V
I
E
W
LAWRENCE BED
F
O
R
D
BOUGAIN
V
I
L
L
E
A
LOMABONITA
GA
R
I
B
A
L
D
I
B
U
L
L
O
C
K
PRADO
WOODBRIDGE
MARGARITA
B
R
O
A
D
MUTSUHITO
VI
C
T
O
R
I
A
R
A
I
L
R
O
A
D
ORCUTT
PRADO
LAU
R
E
L
SA
C
R
A
M
E
N
T
O
B
R
O
A
D
EDNASADDLETANK
EdnaSaddleZone
TerraceHill Zone
DowntownZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-14
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
"5
"5
BULLOCK/INDUSTRIALPRV
CAM
D
E
N
TANGLEWO
O
D
INDUSTR
I
A
L
S
U
N
R
O
S
E
ELCASERIO
CO
L
I
N
A
RICAR
D
O
LOBELIA
BAR
R
A
N
C
A
SY
C
A
M
O
R
E
LEX
I
N
G
T
O
N
CAPIT
O
L
I
O
BED
F
O
R
D
HARMONY
BOUGAIN
V
I
L
L
E
A
B
U
L
L
O
C
K
LAU
R
E
L
SOUTH
W
O
O
D
SOUTHWOOD
JO
H
N
S
O
N
ORCUTT
B
U
L
L
O
C
K
SA
C
R
A
M
E
N
T
O
B
R
O
A
D
EdnaSaddleZone
Bishop
Zone
TerraceHill Zone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-15
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
WATER MAINS
UT STORAGE TANKS
PUMP STATION[Ú
"5 PRESSUREREDUCING
CHECK VALVES
SYSTEM VALVES&.
&.
PRODUCTION WELL"?)
2"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24" and greater
Unknown
Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
CA
L
L
E
J
O
A
Q
U
I
N
LOS OSOS VALLEY
L
O
S
O
S
O
S
V
A
L
L
E
Y
CAL
L
E
J
O
A
Q
U
I
N
LO
S
O
S
O
S
V
A
L
L
E
Y
EdnaSaddleZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-16
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
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Attachment 1
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CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
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PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-17
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
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2"
4"
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CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
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PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-18
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
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CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
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16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 8-19
Index Map
EXISTING WATERDISTRIBUTION SYSTEM
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
ISOLATION VALVES
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Attachment 1
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PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
O 0 2,5001,250 Feet
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CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
FIGURE 8-20
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Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
9‐1
9: Summary of Recommendations
This chapter summarizes the City’s recommended master plan improvement projects to meet existing
and future needs, and the master plan improvement program to assist in the financial planning aspects
of implementing the recommended improvements. The improvements are described as first, second
and third priorities. All tables and figures are located at the end of this chapter.
Recommended Master Plan Improvement Projects
Based on the hydraulic model, along with recommendations for storage and booster station upgrades
and upgrades due to operational needs, a series of master plan improvement projects have been
identified. The projects have been classified into three categories: First, Second, and Third Priority. First
priority projects are a result of significant health and safety concerns, including substandard pressures
and fire flows during any demand situation. These projects are recommended to be completed within
five years. Second priority projects address sections of the City’s water system that are experiencing
slightly substandard pressures and/or fire flows, but are not as critical as first priority projects. These
projects are recommended to be completed within 10 years. Third priority projects include upgrades
that are not critical in nature, but are recommended during routine future replacements. These projects
are recommended to be completed within 15 years. As development projects occur throughout the
City, any proposed First, Second or Third priority projects should be identified and completed to address
these deficiencies prior to the proposed development being constructed. Also, the proposed land uses,
distribution system layout, demands and fire flow requirements should be re‐evaluated for each project
in the planning stage to confirm assumptions made for the purpose of this Water Master Plan are
accurate and confirm that no additional upgrades will be required.
Recommended Consolidations
This master plan has proposed several zone consolidations. The following provides a summary of the
reasons these consolidations are proposed:
High Pressure/Bishop: The High Pressure and Bishop Zones essentially operate together under
current conditions, but have the backup of the Bishop Pump Station. As the system operates currently,
the Bishop Zone has areas that don’t meet fire flow demands and there are water quality concerns with
the Bishop Tank. By making upgrades to the water distribution system, connecting the High Pressure
and Bishop Zones in more than one location, the fire flow availability is increased throughout the Bishop
Zone. By installing the control valve, this will allow the Bishop Tank to solely feed the Bishop Zone, thus
forcing the tank to turnover easier than if the tank were required to float with Reservoir #2. However, if
needed, the control valve can provide additional flow if pressures drop too low in the Bishop Zone.
High Pressure/Slack Zone: The Slack Street Tank operates at essentially the same elevation as
Reservoir #2. The McCollum Pump Station provides very little pressure increase to boost into the Slack
Zone. With some essential piping upgrades in the Slack Zone, this pump station can be eliminated and
sufficient fire flow can still be met throughout the zone. This consolidation eliminates the Slack Tank
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
9‐2
and McCollum PS. Both facilities currently need repairs and upgrades to meet current standards and are
an on‐going operations and maintenance expense.
High Pressure/Serrano/Ferrini/Patricia: The Serrano and Ferrini Tanks are at similar
elevations to Reservoir #2, but are currently fed from the Foothill Zone (Clearwells). With piping
upgrades, these zones can be consolidated, thus eliminating the Ferrini PS, Bressi PS, Ferrini Tank and
Serrano Tank. All four of these facilities require repairs and upgrades to meet current standards and are
an on‐going operations and maintenance expense. To ensure that areas within the current zones do
not have too high of pressures, some customers were consolidated with the Foothill Zone. This
consolidation does increase the demand on Reservoir #2 and the Transfer PS.
Reservoir #1/Foothill: Reservoir # 1 and the Clear Wells are at similar elevations. With the zone
consolidation, the available storage in Reservoir #1 would be reduced, but would still have sufficient
storage to meet the needs of the zone. The demand within Reservoir #1 Zone is minimal compared to
the Foothill Zone. The two zones already have a connecting water main, but a valve re‐configuration
would be required. There are concerns about the size and integrity of the connecting water main as this
water main is located under Highway 101. However, the consolidated zone has sufficient redundancy
with the existing PRVs that are available to provide backup supply from the High Pressure Zone, as it is
currently operated. Consolidating these two zones eliminates the need to pump water from the Clear
Wells (Transfer PS) to Reservoir #2 to then dissipate that energy through PRVs to supply the Reservoir
#1 Zone. With the increased demand on Reservoir #2 and the Transfer PS from the High
Pressure/Serrano/Ferrini consolidation, this consolidation will reduce the demand back down to its
current conditions.
First Priority Master Plan Improvement Projects
First Priority Projects have the highest health and safety deficiencies within the distribution system.
Typically, these deficiencies are identified due to fire flow capacities that are less than 50% of the
required fire flow. First priority projects were determined using the following criteria:
Pressures below 30 psi during ADD, MDD, PHD
Velocities greater than 5 fps during ADD, MDD, PHD
Fire flows that cannot meet a minimum of 50% of the required fire flow:
o Residential single and multi‐family areas ‐ 750 GPM
o Commercial, Office Professional, and school ‐ 1,250 GPM
o Hospitals: Unsprinklered ‐ 3,000 gpm
o Hospitals: Sprinklered ‐ 1,200 gpm
o Big Box Commercial, Industrial, and Hotel ‐ 2,000 gpm
o Cal Poly ‐ 2,500 gpm
Operational and maintenance projects that were identified by the City due to continuous
maintenance repairs for line breaks
Water mains that were greater than 75 years old
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
9‐3
Second Priority Master Plan Improvement Projects
Second Priority Projects have the second highest health and safety deficiencies within the distribution
system. Typically, these deficiencies are identified due to fire flow capacities that are between 50% and
75% of the required fire flow. Second priority projects were determined using the following criteria:
Pressures below 40 psi during ADD, MDD, PHD
Fire flows that cannot meet between 50% and 75% of the required fire flow:
o Residential single and multi‐family ‐ 1,125 GPM
o Commercial, Office Professional, and school ‐ 1,875 GPM
o Hospitals: Unsprinklered ‐ 4,500 gpm
o Hospitals: Sprinklered ‐ 1,775gpm
o Big Box Commercial, Industrial, and Hotel ‐ 3,000 gpm
o Cal Poly ‐ 3,750 gpm
Operational and maintenance projects identified by the City where water mains are between 50
and 75 years old
Third Priority Master Plan Improvement Projects
Third Priority Projects have minor deficiencies within the distribution system. Typically, these
deficiencies are identified due to fire flow capacities that are between 75% and 100% of the required
fire flow. In addition, third priority projects are those projects that are recommended because the
water main doesn’t meet current day standards such as minimum pipe diameter or material. Third
priority projects were determined using the following criteria:
Fire flows that cannot meet between 75% and 100% of the required fire flow:
o Residential single and multi‐family ‐ 1,500 GPM
o Commercial, Office Professional, and school ‐ 2,500 GPM
o Hospitals: Unsprinklered ‐ 6,000 gpm
o Hospitals: Sprinklered ‐ 2,375 gpm
o Big Box Commercial, Industrial, and Hotel ‐ 4,000 gpm
o Cal Poly area ‐ 5,000 gpm
Operational and maintenance projects that were identified by the City that were less than 50
years old
Water mains that do not meet current design standards (i.e. 4‐inch water mains) that were not
identified as hydraulic deficiencies
Master Plan Improvement Project Ranking and Costs
First, Second, and Third Priority Master Plan Improvement Projects were ranked to determine what
priority the recommended projects should be constructed. The ranking was based on severity of the
deficiency, the size of the community the deficiency impacts, the proximity to the urban/wildlife
interface and cost. Figures 9‐1 through 9‐19 illustrate the location of each of the proposed Maser Plan
Improvement Projects. Tables 9‐1, 9‐2, and 9‐3 provide a summary of all the recommended Master Plan
Improvement Projects in order of ranking for first, second, and third priority projects, respectively.
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
9‐4
These Tables also provide estimates of the construction and “soft” costs for each project. The project
costs are based on engineering judgment, confirmed bid prices for similar work in the Central Coast
area, consultation with vendors and contractors, established budgetary unit prices for the work, and
other reliable sources. The cost estimates are approximate and should be used for planning purposes
only. Actual project costs will vary depending upon economic conditions at time of construction. These
costs are based on Year 2014 dollars (McGraw‐Hill ENR Construction Cost Index of 9992) and need to be
escalated to the year or years scheduled for the construction. Table 9‐4 provides a summary of the cost
per lineal foot used to develop the construction costs for the water main upgrade projects.
Table 9‐4. Unit Cost for Construction of Water Mains
Size
(Inches) Replacement Material Replacement Cost per
Linear Foot (Year 2015)
2 Copper $100
6 DI $135
10 DI $240
16 DI $325
2 PE $90
3 PVC $125
4 PVC $150
6 PVC $170
8 PVC $185
10 PVC $225
12 PVC $265
14 PVC $285
16 PVC $315
18 PVC $350
20 PVC $375
24 PVC $400
27 PVC $410
30 PVC $425
18 RCP $275
21 RCP $350
24 RCP $375
24 STEEL $350
1 All pipes are pressure class 150 unless otherwise stated.
Source: Cost Table provided by the City of San Luis Obispo
Attachment 1
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AvePhillips Lane0LS$0$0
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Fe
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DriveAl‐Hil Drive (Old Fel‐Mar PS)750,000LS$750,000$1,050,000
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DriveNew Fel‐Mar PS to 80 Highland Drive$185LF$277,500$388,500
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DriveRosemont PS50,000LS$50,000$70,000
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RoadReservoir #2 site$1.25GAL$6,250,000$8,750,000
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CIP mapHighway 1 at Foothill Blvd to Hermosa Way at Luneta Drive. Exact alignment is flexible.$265LF$1,908,000$2,671,200
‐‐
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‐‐
40
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DriveRafael Way to Tassajara Drive$185LF$74,000$103,600
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PlaceBressi PS and Serrano Tank. Piping from Serrano Tank to end of La Entrada Ave and Broad Street at Serrano Heights.100,000LS$100,000$140,000Construction Cost ($)
1‐10
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April 2015Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
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K
Attachment 1
Ta
b
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e
9
-
1
.
F
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P
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LocationSubtotal ($)Total Project Cost ($)**Construction Cost ($)
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Creek RoadMount Bishop Road, past the Ferrini PS, up the hill to Montrose Drive$265LF$742,000$1,038,800
1‐16
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and Hwy 1Ferrini PS & Tank125,000LS$125,000$175,000
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Drive to Los Cerros Drive$265LF$286,200$400,680
‐‐
1,
1
3
0
‐‐
12
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t
r
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DriveCerro Romauldo to Highland Drive$265LF$299,450$419,230
‐‐
27
0
‐‐
8
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DriveHighland Drive to Fel‐Mar Drive$185LF$49,950$69,930
‐‐
28
0
6
8
Hi
g
h
l
a
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Drive Fel‐Mar Drive to 113 Highland Drive$185LF$51,800$72,520
‐‐
88
0
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&
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1
2
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En
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AveHermosa Way to San Jose Court$265LF$233,200$326,480
‐‐
1,
4
2
0
‐‐
12
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En
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a
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a
AveSan Jose Court to Foothill Blvd., and continue up Patricia Drive to Cerro Romauldo$265LF$376,300$526,820
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th
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1,
1
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En
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a
AveCatalina Drive to Foothill Blvd.$185LF$203,500$284,900
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easementFoothill Blvd. to Ramona, and Catalina to Del Mar.10,000LS$10,000$14,000
‐‐
70
0
6
&
8
1
2
Mu
r
r
a
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Street Santa Rosa Street to Casa Street$265LF$185,500$259,700
‐‐
90
0
4&
6
1
2
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a
StreetMurray Street and to just south of Deseret Place$265LF$238,500$333,900
‐‐
26
0
6
12
Cr
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g
WayPatricia Street to Jaycee Drive$265LF$68,900$96,460
‐‐
77
0
‐‐
8
Ja
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DriveThrough parking lot of Bishop's Elementary to connect to Craig Way$185LF$142,450$199,430
‐‐
58
0
8
8
Ja
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DriveCraig Way to dead‐end$185LF$107,300$150,220
‐‐
33
0
12
12
Ha
t
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w
a
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Ave California Blvd to Fredricks Street$265LF$87,450$122,430
‐‐
2,
4
9
0
1
2
12
Fr
e
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StreetHathway Ave to Grand Ave$265LF$659,850$923,790
1‐23
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85
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Street Albert Drive to Grand Ave$185LF$157,250$220,150
1‐24
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1
‐‐
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Mc
C
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StreetMcCollum PS50,000LS$50,000$70,000
‐‐
29
0
8
10
El
Pa
s
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o
CourtFlora Street to El Cerrito$225LF$65,250$91,350
‐‐
67
0
8
8
El
Ce
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i
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Court El Paseo Court to end of the water main$185LF$123,950$173,530
1‐26
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65
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8
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Del CampoBishop Street to Fletcher Ave$185LF$120,250$168,350
1‐25
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1‐18
La
En
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r
a
d
a
1
April 2015Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
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K
Attachment 1
Ta
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9
-
1
.
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(i
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St
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LocationSubtotal ($)Total Project Cost ($)**Construction Cost ($)
1‐27
We
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In
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‐‐
50
0
‐‐
8
E
n
d
of
We
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m
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AveJeffrey Drive to Stanford Drive$185LF$92,500$129,500
1‐28
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In
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‐‐
22
0
‐‐
8
Hi
l
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PlaceHillcrest Place to California Blvd.$185LF$40,700$56,980
1‐29
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‐‐
64
0
6
8
Sl
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StreetHenderson Ave to Slack Street Tank$185LF$118,400$165,760
1‐30
Hi
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In
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fi
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‐‐
2,
8
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0
6
&
8
1
2
Hi
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a
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DriveHighway 1 to Patricia Drive$265LF$742,000$1,038,800
1‐31
Ch
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El
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‐‐
10
0
‐‐
8
Ch
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StreetAt the intersections of Chorro Street and Meinecke Ave and Chorro Street and Murray Street$185LF$18,500$25,900
1‐32
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1
‐‐
‐‐
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PlantTransfer PS450,000LS$450,000$630,000
1‐33
Wi
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In
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Pr
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‐‐
60
0
6
8
Wi
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i
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LaneFrom 2000 Wilding Lane to Skylark Lane$185LF$111,000$155,400
1‐34
R
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m
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Ta
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Co
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‐‐
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TankRosemont Tank Site$1GAL$150,000$210,000
1‐35
Ir
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Op
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& Ma
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‐‐
32
0
6
8
Ir
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StreetJohnson Ave to Fixlini Street$185LF$59,200$82,880
1‐36
Pa
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f
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Op
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& Ma
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w
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‐‐
1,
9
0
0
1
0
12
Pa
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f
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StreetNipomo Street to Higuera Street$265LF$503,500$704,900
1‐37
Ch
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2
Op
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& Ma
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w
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‐‐
1,
0
0
0
6
& 8
8
Ch
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StreetBroad Street to Upham Street$185LF$185,000$259,000
1‐38
Ma
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Op
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& Ma
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‐‐
2,
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8
8
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StreetCalifornia Blvd to Santa Rosa Street$185LF$388,500$543,900
1‐39
Ha
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Op
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& Ma
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‐‐
2,
0
0
0
6
8
Ha
t
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w
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Ave Longview Lane to Fredericks Street$185LF$370,000$518,000
1‐40
Si
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Op
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& Ma
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‐‐
1,
5
0
0
6
& 8
8
Si
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r
r
a
WayElla Street to Bishop Street$185LF$277,500$388,500
1‐41
M
o
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t
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Vi
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Op
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w
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‐‐
36
0
6
8
M
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a
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View StreetHill Street to Broad Street$185LF$66,600$93,240
1‐42
Ca
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& Ma
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H
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‐‐
1,
5
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1
6
16
Ca
l
i
f
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r
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BlvdMill Street to San Luis Drive$325LF$487,500$682,500
1‐43
S
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Lu
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Dr
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Op
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‐‐
1,
4
0
0
1
6
16
Sa
n
Lu
i
s
DriveCalifornia Blvd to Johnson Ave$325LF$455,000$637,000
1‐44
Jo
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s
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Op
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& Ma
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H
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‐‐
85
0
16
16
Jo
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s
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AveSan Luis Drive to Lizzie Street $325LF$276,250$386,750 April 2015Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
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A
L
L
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BL
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Attachment 1
Ta
b
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9
-
1
.
F
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P
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Di
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(i
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St
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LocationSubtotal ($)Total Project Cost ($)**Construction Cost ($)
1‐45
Sa
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Mi
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Op
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& Ma
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‐‐
62
0
6
& 8
8
S
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Mi
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AvenueSanta Ynez Ave to Buena Vista Ave$185LF$114,700$160,580
1‐46
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c
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4‐in
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Up
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‐‐
1,
5
2
0
4
8
Li
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c
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l
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StretChorro Street to West Street$185LF$281,200$393,680
1‐47
Hi
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Up
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48
0
4
8
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StreetToro Street to Johnson Ave$225LF$108,000$151,200
1‐48
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& Ch
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Up
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1,
3
6
0
4
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C
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i
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Wa
y
an
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Christina WayOn Craig Way from Patricia Drive to Jeffrey Drive and on Christina Way from Warren Way to Craig Way$185LF$251,600$352,240
1‐49
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‐‐
85
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4
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a
Ca
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DriveTolosa Way to Cerro Romauldo$185LF$157,250$220,150
1‐50
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‐‐
44
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4
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Drive South of McCollum Street to north of Santa Ynez Ave$185LF$81,400$113,960
1‐51
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‐‐
‐‐
‐‐
‐‐
‐‐
‐‐Rosemont, Edna Saddle, Terrace Hill and Islay Tanks$60,000LS$60,000$84,000
1‐52
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‐‐
‐‐
‐‐
‐‐
‐‐
‐‐Clear Wells #1 and/or #2, Reservoir #2, Edna Saddle and Bishop Tanks$60,000LS$60,000$84,000
1‐53
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Drvie@ Mt. Bishop under the RR Crossing$375LF$150,000$210,000 $26,672,030
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prices for similar work in the Central Coast area, consultation with vendors and contractors, established budgetary unit
pr
i
c
e
s
fo
r
th
e
wo
r
k
,
an
d
ot
h
e
r
re
l
i
a
b
l
e
so
u
r
c
e
s
.
TOTAL FIRST PRIORITY PROJECT COSTS April 2015Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
Ta
b
l
e
9
-
2
.
S
e
c
o
n
d
P
r
i
o
r
i
t
y
M
a
s
t
e
r
P
l
a
n
I
m
p
r
o
v
e
m
e
n
t
P
r
o
j
e
c
t
s
Pr
o
j
e
c
t
#
Ti
t
l
e
De
s
c
r
i
p
t
i
o
n
Ex
i
s
t
i
n
g
Zo
n
e
P
r
o
p
o
s
e
d
Zo
n
e
Q
u
a
n
t
i
t
y
L
e
n
g
t
h
(F
t
)
Ex
i
s
t
Di
a
m
e
t
e
r
(i
n
)
Ne
w
Di
a
m
e
t
e
r
(i
n
)
St
r
e
e
t
LocationSubtotal ($)Total Project Cost ($)**
2‐1
S
a
n
Lu
i
s
Dr
i
v
e
2
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
An
d
r
e
w
s
& Hi
g
h
Pr
e
s
s
u
r
e
An
d
r
e
w
s
& Hi
g
h
Pr
e
s
s
u
r
e
‐‐
‐
85
0
8
12
S
a
n
Lu
i
s
Dr
i
v
e
C
a
l
i
f
o
r
n
i
a
Blvd to Cazadero Street$265LF$225,250$315,350
2‐2
Fl
o
r
a
In
c
r
e
a
s
e
pr
e
s
s
u
r
e
an
d
fi
r
e
fl
o
w
s
B
i
s
h
o
p
H
i
g
h
Pr
e
s
s
u
r
e
‐‐
‐
82
0
1
2
14
Fl
o
r
a
St
r
e
e
t
B
i
s
h
o
p
Street to Bishop Tank$285LF$233,700$327,180
2‐3
Al
r
i
t
a
In
c
r
e
a
s
e
pr
e
s
s
u
r
e
Bi
s
h
o
p
H
i
g
h
Pr
e
s
s
u
r
e
‐‐
‐
42
0
8
8
Al
r
i
t
a
St
r
e
e
t
F
l
o
r
a
Street to Bahia Court$185LF$77,700$108,780
2‐4
Ro
s
i
t
a
4‐in
c
h
Up
g
r
a
d
e
wi
t
h
fi
r
e
fl
o
w
de
f
i
c
i
e
n
c
i
e
s
Pa
t
r
i
c
i
a
Fo
o
t
h
i
l
l
‐‐
‐
40
0
4
8
Ro
s
i
t
a
St
r
e
e
t
C
e
r
r
o
Romaulto to Foothill Blvd$265LF$106,000$148,400
‐‐
‐
50
0
8
12
B
a
c
k
y
a
r
d
ea
s
e
m
e
n
t
P
a
t
r
i
c
i
a
Drive to Al‐Hil Drive$265LF$132,500$185,500
‐‐
‐
48
0
8
8
P
a
t
r
i
c
i
a
Dr
i
v
e
P
a
t
r
i
c
i
a
Court to Clover Drive$265LF$127,200$178,080
‐‐
‐
69
0
8
8
Cl
o
v
e
r
Dr
i
v
e
P
a
s
a
t
i
e
m
p
o
Drive to Patricia Drive$265LF$182,850$255,990
‐‐
‐
44
0
8
8
Pa
s
a
t
i
e
m
p
o
M
i
r
a
Sol Drive to Clover Drive$265LF$116,600$163,240
2‐7
Ol
i
v
e
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Fo
o
t
h
i
l
l
Fo
o
t
h
i
l
l
‐‐
‐
80
0
‐‐
‐
8
Ol
i
v
e
St
r
e
e
t
New easement from Santa Rosa Street to last fire hydrant$265LF$212,000$296,800
2‐8
Ga
r
f
i
e
l
d
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Re
s
e
r
v
o
i
r
1
Fo
o
t
h
i
l
l
‐‐
‐
31
0
8
12
G
a
r
f
i
e
l
d
St
r
e
e
t
Henderson Street to Monterey Street$265LF$82,150$115,010
2‐9
Da
n
a
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Do
w
n
t
o
w
n
D
o
w
n
t
o
w
n
‐‐
‐
25
0
‐‐
‐
8
Da
n
a
St
r
e
e
t
D
a
n
a
Street to Brizzolara Street$265LF$66,250$92,750
2‐10
L
a
u
r
e
l
La
n
e
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Bi
s
h
o
p
H
i
g
h
Pr
e
s
s
u
r
e
‐‐
‐
1,
0
0
0
6
8
La
u
r
e
l
La
n
e
Johnson Avenue to 1248 Laurel Lane$265LF$265,000$371,000
‐‐
‐
50
0
‐‐
‐
12
Ne
w
ea
s
e
m
e
n
t
in
Pa
r
k
i
n
g
Lo
t
McMillan Ave to Garbaldi Ave$265LF$132,500$185,500
‐‐
‐
84
0
8
12
M
u
t
s
u
h
i
t
o
Av
e
G
a
r
i
b
a
l
d
i
Ave to Broad Street$265LF$222,600$311,640Construction Cost ($)
2‐5
Te
r
r
a
c
e
Hi
l
l
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Mu
t
s
u
h
i
t
o
2‐11
Al
‐Hi
l
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Hi
g
h
l
a
n
d
H
i
g
h
Pr
e
s
s
u
r
e
2‐6
Cl
o
v
e
r
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Hi
g
h
l
a
n
d
H
i
g
h
Pr
e
s
s
u
r
e
Te
r
r
a
c
e
Hi
l
l
April 2015Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
Ta
b
l
e
9
-
2
.
S
e
c
o
n
d
P
r
i
o
r
i
t
y
M
a
s
t
e
r
P
l
a
n
I
m
p
r
o
v
e
m
e
n
t
P
r
o
j
e
c
t
s
Pr
o
j
e
c
t
#
Ti
t
l
e
De
s
c
r
i
p
t
i
o
n
Ex
i
s
t
i
n
g
Zo
n
e
P
r
o
p
o
s
e
d
Zo
n
e
Q
u
a
n
t
i
t
y
L
e
n
g
t
h
(F
t
)
Ex
i
s
t
Di
a
m
e
t
e
r
(i
n
)
Ne
w
Di
a
m
e
t
e
r
(i
n
)
St
r
e
e
t
LocationSubtotal ($)Total Project Cost ($)**Construction Cost ($)
2‐12
Bi
s
h
o
p
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Te
r
r
a
c
e
Hi
l
l
T
e
r
r
a
c
e
Hi
l
l
‐‐
‐
58
0
‐‐
‐
8
B
i
s
h
o
p
St
r
e
e
t
Terrace Hill Tank to Florence Avenue$265LF$153,700$215,180
2‐13
C
a
l
l
e
Jo
a
q
u
i
n
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Ed
n
a
Sa
d
d
l
e
E
d
n
a
Sa
d
d
l
e
‐‐
‐
3,
0
4
0
8
12
C
a
l
l
e
Jo
a
q
u
i
n
Los Osos Valley Road to last fire hydrant$265LF$805,600$1,127,840
‐‐
‐
69
0
‐‐
‐
12
D
a
l
i
d
i
o
Dr
i
v
e
N
e
w
loop to existing water main$265LF$182,850$255,990
‐‐
‐
38
0
‐‐
‐
12
S
h
o
p
p
i
n
g
Ce
n
t
e
r
N
e
w
loop to Madonna Road$265LF$100,700$140,980
2‐15
Fl
o
r
a
2
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
Bi
s
h
o
p
H
i
g
h
Pr
e
s
s
u
r
e
‐‐
‐
1,
0
5
0
1
2
12
Fl
o
r
a
St
r
e
e
t
2
2
5
0
Flora Street to Sydney Street$265LF$278,250$389,550
2‐16
Sy
d
n
e
y
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
B
i
s
h
o
p
H
i
g
h
Pr
e
s
s
u
r
e
‐‐
‐
66
0
6
8
S
y
d
n
e
y
St
r
e
e
t
A
u
g
u
s
t
a
Street to Johnson Ave$265LF$174,900$244,860
2‐17
Sy
d
n
e
y
2
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
B
i
s
h
o
p
H
i
g
h
Pr
e
s
s
u
r
e
‐‐
‐
50
0
6
8
S
y
d
n
e
y
St
r
e
e
t
F
l
o
r
a
Street to Dead‐end$265LF$132,500$185,500
2‐18
Ge
r
d
a
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
B
i
s
h
o
p
H
i
g
h
Pr
e
s
s
u
r
e
‐‐
‐
27
0
4
8
Ge
r
d
a
St
r
e
e
t
A
u
g
u
s
t
a
Street to Dead‐end$265LF$71,550$100,170
2‐19
Mi
l
l
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
Do
w
n
t
o
w
n
&
Re
s
e
r
v
o
i
r
1
Do
w
n
t
o
w
n
& Fo
o
t
h
i
l
l
‐‐
‐
1,
0
2
0
6
8
Mi
l
l
St
r
e
e
t
Santa Rosa Street to Johnson Street$265LF$270,300$378,420
2‐20
S
a
n
t
a
Ro
s
a
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
D
o
w
n
t
o
w
n
D
o
w
n
t
o
w
n
‐‐
‐
1,
4
5
0
6
8
S
a
n
t
a
Ro
s
a
St
r
e
e
t
P
a
c
i
f
i
c
Street to Leff Street$265LF$384,250$537,950
2‐21
W
o
o
d
b
r
i
d
g
e
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
D
o
w
n
t
o
w
n
D
o
w
n
t
o
w
n
‐‐
‐
71
0
6
& 8
8
W
o
o
d
b
r
i
d
g
e
St
r
e
e
t
L
a
w
t
o
n
Ave to Broad Street$265LF$188,150$263,410
2‐22
Fu
n
s
t
o
n
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
D
o
w
n
t
o
w
n
D
o
w
n
t
o
w
n
‐‐
‐
80
0
8
8
F
u
n
s
t
o
n
St
r
e
e
t
M
e
a
d
o
w
Street to Broad Street$265LF$212,000$296,800
2‐23
Oc
e
a
n
a
i
r
e
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
E
d
n
a
Sa
d
d
l
e
E
d
n
a
Sa
d
d
l
e
‐‐
‐
1,
8
8
0
6
& 8
8
O
c
e
a
n
a
i
r
e
St
r
e
e
t
M
a
d
o
n
n
a
Road to Cayucos Drive$265LF$498,200$697,480
2‐24
St
e
n
n
e
r
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
F
o
o
t
h
i
l
l
Fo
o
t
h
i
l
l
‐‐
‐
58
0
8
8
S
t
e
n
n
e
r
St
r
e
e
t
M
u
r
r
a
y
Street to end of cul‐de‐sac$265LF$153,700$215,180
2‐25
Fe
r
r
i
n
i
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
F
o
o
t
h
i
l
l
Fo
o
t
h
i
l
l
‐‐
‐
1,
1
0
0
6
8
Fe
r
r
i
n
i
Ro
a
d
F
e
l
t
o
n
Way to Foothill Blvd$265LF$291,500$408,100
2‐14
Ma
d
o
n
n
a
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Ed
n
a
Sa
d
d
l
e
E
d
n
a
Sa
d
d
l
e
April 2015Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
Ta
b
l
e
9
-
2
.
S
e
c
o
n
d
P
r
i
o
r
i
t
y
M
a
s
t
e
r
P
l
a
n
I
m
p
r
o
v
e
m
e
n
t
P
r
o
j
e
c
t
s
Pr
o
j
e
c
t
#
Ti
t
l
e
De
s
c
r
i
p
t
i
o
n
Ex
i
s
t
i
n
g
Zo
n
e
P
r
o
p
o
s
e
d
Zo
n
e
Q
u
a
n
t
i
t
y
L
e
n
g
t
h
(F
t
)
Ex
i
s
t
Di
a
m
e
t
e
r
(i
n
)
Ne
w
Di
a
m
e
t
e
r
(i
n
)
St
r
e
e
t
LocationSubtotal ($)Total Project Cost ($)**Construction Cost ($)
2‐26
Ta
s
s
a
j
a
r
a
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
F
o
o
t
h
i
l
l
Fo
o
t
h
i
l
l
‐‐
‐
47
0
6
8
T
a
s
s
a
j
a
r
a
Dr
i
v
e
F
o
o
t
h
i
l
l
Blvd to Ramona Drive$265LF$124,550$174,370
2‐27
S
a
n
t
a
Lu
c
i
a
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
F
o
o
t
h
i
l
l
Fo
o
t
h
i
l
l
‐‐
‐
85
0
6
8
S
a
n
t
a
Lu
c
i
a
Dr
i
v
e
C
e
r
r
o
Romauldo to Tolosa Way$265LF$225,250$315,350
2‐28
To
l
o
s
a
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
F
o
o
t
h
i
l
l
Fo
o
t
h
i
l
l
‐‐
‐
54
0
6
8
To
l
o
s
a
Wa
y
Santa Lucia Drive to Tassajara Drive$265LF$143,100$200,340
2‐29
Bo
y
s
e
n
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
F
o
o
t
h
i
l
l
Fo
o
t
h
i
l
l
‐‐
‐
1,
2
8
0
6
& 8
8
Bo
y
s
e
n
Av
e
S
a
n
t
a
Rosa Street to Chorro Street$265LF$339,200$474,880
2‐30
Ch
o
r
r
o
3
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
Fo
o
t
h
i
l
l
Fo
o
t
h
i
l
l
‐‐
‐
1,
7
9
0
1
8
24
C
h
o
r
r
o
St
r
e
e
t
F
e
r
r
i
n
i
Road to Foothill Blvd$400LF$716,000$1,002,400
2‐31
Ho
p
e
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
H
i
g
h
Pr
e
s
s
u
r
e
H
i
g
h
Pr
e
s
s
u
r
e
‐‐
‐
1,
1
9
0
4
& 6
8
Ho
p
e
St
r
e
e
t
G
r
a
n
d
Ave to Dead‐end$265LF$315,350$441,490
2‐32
St
e
n
n
e
r
2
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
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a
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e
F
o
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h
i
l
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Fo
o
t
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i
l
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‐‐
‐
5,
2
5
0
3
0
30
St
e
n
n
e
r
F
r
o
m
the WTP to Bressi PS$450LF$2,362,500$3,307,500 $14,428,960
Al
l
CI
P
co
s
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s
ar
e
ex
p
r
e
s
s
e
d
in
Ap
r
i
l
20
1
5
do
l
l
a
r
s
,
us
i
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Mc
G
r
a
w
‐Hi
l
l
EN
R
Co
n
s
t
r
u
c
t
i
o
n
Co
s
t
In
d
e
x
of
99
9
2
,
an
d
wi
l
l
ne
e
d
to
be
es
c
a
l
a
t
e
d
to
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or
ye
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r
s
sc
h
e
d
u
l
e
d
fo
r
th
e
wo
r
k
.
TOTAL NEAR‐TERM PROJECT COSTS
**
To
t
a
l
in
c
l
u
d
e
s
co
n
s
t
r
u
c
t
i
o
n
co
s
t
pl
u
s
pr
e
l
i
m
i
n
a
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en
g
i
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e
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i
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r
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,
ad
m
i
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i
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a
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i
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co
n
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u
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i
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ma
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an
d
in
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c
t
i
o
n
co
s
t
s
.
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n
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r
u
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i
o
n
co
s
t
s
we
r
e
de
v
e
l
o
p
e
d
ba
s
e
d
on engineering judgment, confirmed bid prices for similar work in the Central Coast area, consultation
wi
t
h
ve
n
d
o
r
s
an
d
co
n
t
r
a
c
t
o
r
s
,
es
t
a
b
l
i
s
h
e
d
bu
d
g
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t
a
r
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un
i
t
pr
i
c
e
s
fo
r
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e
wo
r
k
,
an
d
ot
h
e
r
re
l
i
a
b
l
e
so
u
r
c
e
s
.
April 2015Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
Ta
b
l
e
9
-
3
.
T
h
i
r
d
P
r
i
o
r
i
t
y
M
a
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P
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Pr
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#
Ti
t
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De
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Ex
i
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g
Zo
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P
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p
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Zo
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Q
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a
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t
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L
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(F
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)
Ex
i
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Di
a
m
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r
(i
n
)
Ne
w
Di
a
m
e
t
e
r
(i
n
)
St
r
e
e
t
LocationSubtotal ($)Total Project Cost ($)**
3‐1
R
e
s
e
r
v
o
i
r
Ca
n
y
o
n
PS
Re
p
l
a
c
e
th
e
en
t
i
r
e
pu
m
p
st
a
t
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Ca
n
y
o
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R
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r
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i
r
Ca
n
y
o
n
1
‐‐
‐
‐‐
‐
‐‐
‐
Hi
g
h
w
a
y
101Adjacent to Reservoir 1150,000LS$150,000$210,000
3‐2
R
e
s
e
r
v
o
i
r
#1
Co
n
s
t
r
u
c
t
tw
o
ne
w
ta
n
k
s
,
1.
5
MG
ea
c
h
Re
s
e
r
v
o
i
r
1
Fo
o
t
h
i
l
l
3
MG
‐‐
‐
‐‐
‐
‐‐
‐
Hi
g
h
w
a
y
101Miossi Road$1GAL$3,000,000$4,200,000
3‐3
Fo
o
t
h
i
l
l
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Hi
g
h
Pr
e
s
s
u
r
e
H
i
g
h
Pr
e
s
s
u
r
e
‐‐
‐
67
0
6
8
F
o
o
t
h
i
l
l
Bl
v
d
C
r
a
n
d
a
l
l
Way to Dead‐end$185LF$123,950$173,530
3‐4
Jo
h
n
s
o
n
2
Up
g
r
a
d
e
4‐in
c
h
ma
i
n
Re
s
e
r
v
o
i
r
1
Fo
o
t
h
i
l
l
‐‐
‐
37
0
4
8
J
o
h
n
s
o
n
AvePeach Street to Mill Street$185LF$68,450$95,830
3‐5
Se
n
d
e
r
o
Up
g
r
a
d
e
4‐in
c
h
ma
i
n
Do
w
n
t
o
w
n
D
o
w
n
t
o
w
n
‐‐
‐
43
0
4
8
S
e
n
d
e
r
o
St
r
e
e
t
Corrida Drive to Woodbridge Street$185LF$79,550$111,370
3‐6
Br
o
a
d
In
c
r
e
a
s
e
fi
r
e
fl
o
w
s
Ed
n
a
Sa
d
d
l
e
E
d
n
a
Sa
d
d
l
e
1,
7
0
0
1
0
& 12
1
2
B
r
o
a
d
St
r
e
e
t
T
a
n
k
Farm Road to Fuller Street$265LF$450,500$630,700
3‐7
Mi
l
l
2
Up
g
r
a
d
e
4‐in
c
h
ma
i
n
Re
s
e
r
v
o
i
r
1
Fo
o
t
h
i
l
l
‐‐
‐
52
0
4
8
Mi
l
l
St
r
e
e
t
J
o
h
n
s
o
n
Ave to Pepper Street$185LF$96,200$134,680
3‐8
Lo
o
m
i
s
Up
g
r
a
d
e
4‐in
c
h
ma
i
n
H
i
g
h
Pr
e
s
s
u
r
e
H
i
g
h
Pr
e
s
s
u
r
e
‐‐
‐
62
0
4
8
L
o
o
m
i
s
St
r
e
e
t
Buena Vista Ave to Santa Ynez Ave$185LF$114,700$160,580
3‐9
Gr
e
t
a
Up
g
r
a
d
e
4‐in
c
h
ma
i
n
Te
r
r
a
c
e
Hi
l
l
T
e
r
r
a
c
e
Hi
l
l
‐‐
‐
53
0
4
8
Gr
e
t
a
Pl
a
c
e
S
y
d
n
e
y
Street to Augusta Street$185LF$98,050$137,270
3‐10
Hi
l
l
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
D
o
w
n
t
o
w
n
D
o
w
n
t
o
w
n
‐‐
‐
22
0
4
8
Hi
l
l
St
r
e
e
t
L
i
n
c
o
l
n
Street to 525 Hill Street$185LF$40,700$56,980
3‐11
Ch
o
r
r
o
4
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
F
o
o
t
h
i
l
l
Fo
o
t
h
i
l
l
‐‐
‐
2,
0
7
0
1
2
& 14
1
6
C
h
o
r
r
o
St
r
e
e
t
F
o
o
t
h
i
l
l
Blvd to Mission Street$325LF$672,750$941,850
3‐12
Ta
f
t
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
H
i
g
h
Pr
e
s
s
u
r
e
H
i
g
h
Pr
e
s
s
u
r
e
‐‐
‐
24
0
6
8
Ta
f
t
St
r
e
e
t
K
e
n
t
u
c
k
y
Street to Dead‐end$185LF$44,400$62,160Construction Cost ($)April 2015Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
Ta
b
l
e
9
-
3
.
T
h
i
r
d
P
r
i
o
r
i
t
y
M
a
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#
Ti
t
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De
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i
p
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n
Ex
i
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g
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e
P
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p
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d
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Q
u
a
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t
i
t
y
L
e
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g
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h
(F
t
)
Ex
i
s
t
Di
a
m
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t
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r
(i
n
)
Ne
w
Di
a
m
e
t
e
r
(i
n
)
St
r
e
e
t
LocationSubtotal ($)Total Project Cost ($)**Construction Cost ($)
3‐13
Pa
c
i
f
i
c
2
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
R
e
s
e
r
v
o
i
r
1
Fo
o
t
h
i
l
l
‐‐
‐
48
0
4
8
P
a
c
i
f
i
c
St
r
e
e
t
J
o
h
n
s
o
n
Ave to Pepper Street$185LF$88,800$124,320
3‐14
Pe
a
c
h
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
R
e
s
e
r
v
o
i
r
1
Fo
o
t
h
i
l
l
‐‐
‐
52
0
6
8
P
e
a
c
h
St
r
e
e
t
T
o
r
o
Street to Johnson Ave$185LF$96,200$134,680
3‐15
Re
b
a
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
B
i
s
h
o
p
Hi
g
h
Pr
e
s
s
u
r
e
‐‐
‐
27
0
4
8
Re
b
a
St
r
e
e
t
A
u
g
u
s
t
a
Street to Dead‐end$185LF$49,950$69,930
3‐16
Ra
i
l
r
o
a
d
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
T
e
r
r
a
c
e
Hi
l
l
T
e
r
r
a
c
e
Hi
l
l
‐‐
‐
2,
7
0
0
1
6
16
R
a
i
l
r
o
a
d
Ea
s
e
m
e
n
t
Boulevard Del Campo to Orcutt Road$325LF$877,500$1,228,500
3‐17
We
s
t
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
n
a
n
c
e
D
o
w
n
t
o
w
n
D
o
w
n
t
o
w
n
‐‐
‐
73
0
6
8
We
s
t
St
r
e
e
t
C
h
o
r
r
o
Street to Lincoln Street$185LF$135,050$189,070
3‐18
Mo
n
t
e
r
e
y
Op
e
r
a
t
i
o
n
s
& Ma
i
n
t
e
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a
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c
e
R
e
s
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r
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1
Fo
o
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h
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l
l
‐‐
‐
1,
0
3
0
1
0
& 12
1
2
M
o
n
t
e
r
e
y
StreetJohnson Ave to California Blvd$265LF$272,950$382,130 $9,043,580
Al
l
CI
P
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s
ar
e
ex
p
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in
Ap
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20
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5
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,
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Co
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i
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In
d
e
x
of
99
9
2
,
an
d
wi
l
l
ne
e
d
to
be
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c
a
l
a
t
e
d
to
th
e
ye
a
r
or
ye
a
r
s
sc
h
e
d
u
l
e
d
fo
r
th
e
wo
r
k
.
TOTAL NEAR‐TERM PROJECT COSTS
**
To
t
a
l
in
c
l
u
d
e
s
co
n
s
t
r
u
c
t
i
o
n
co
s
t
pl
u
s
pr
e
l
i
m
i
n
a
r
y
en
g
i
n
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e
r
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,
ad
m
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n
i
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n
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an
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in
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c
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s
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.
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n
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r
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t
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co
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t
s
we
r
e
de
v
e
l
o
p
e
d
ba
s
e
d
on engineering judgment, confirmed bid prices for similar work in the Central Coast area,
co
n
s
u
l
t
a
t
i
o
n
wi
t
h
ve
n
d
o
r
s
an
d
co
n
t
r
a
c
t
o
r
s
,
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t
a
b
l
i
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d
bu
d
g
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t
a
r
y
un
i
t
pr
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fo
r
th
e
wo
r
k
,
an
d
ot
h
e
r
re
l
i
a
b
l
e
so
u
r
c
e
s
.
April 2015Attachment 1
TH
I
S
PA
G
E
LE
F
T
IN
T
E
N
T
I
O
N
A
L
L
Y
BL
A
N
K
Attachment 1
[Ú
1-16 FERRINI PS
1-32 TRANSFER PS
1-15 STENNER CREEK
2-32 STENNER 2
TW
I
N
R
I
D
G
E
MO
N
T
R
O
S
E
ST
E
N
N
E
R
C
R
E
E
K
FERRINI
HighPressureZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-1
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
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2-28 TOLOSA
2-26 S. TASSAJARA
2-4 ROSITA
2-25 FERRINI 2-29 BOYSEN
1-48 CRAIG & CHRISTINA
2-27 SANTA LUCIA
1-19 LA ENTRADA 2
1-21 BISHOP PEAK ELEMENTARY
1-30 HIGHLAND
1-49 LA CANADA
2-6 CLOVER
1-34 ROSEMONT TANK
1-10 FEL-MAR PS
1-11 ROSEMONT PS
1-17 PATRICIA
1-17 PATRICIA
1-13 SERRANO CONSOLIDATION
2-30 CHORRO 3
1-27 WESTMONT
1-18 LA ENTRADA
1-17 PATRICIA
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FoothillZone
HighPressureZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
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5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-2
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
[Ú
1-23 MCCOLLUM
2-29 BOYSEN
1-22 FREDERICKS
2-24 STENNER
2-31 HOPE
1-24 MCCOLLUM PS
1-3 LONGVIEW
1-50 BUENA VISTA
3-3 FOOTHILL
1-31 CHORRO
1-39 HATHWAY
1-29 SLACK
1-13 SERRANO CONSOLIDATION
1-13 SERRANO CONSOLIDATION
2-24 STENNER
1-20 MURRAY
3-8 LOOMIS
1-53 HIGHLAND 2
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DowntownZone
HighPressureZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-3
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
[Ú
1-50 BUENA VISTA
3-1 RESERVOIR CANYON PS
1-50 BUENA VISTA
1-45 SAN MIGUEL
1-29 SLACK
3-2 RESERVOIR #1
1-29 SLACK
3-8 LOOMIS
3-8 LOOMIS
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ReservoirCanyon ZoneHighPressureZone
FoothillZone
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101
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-4
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
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3-10 HILL
1-18 LA ENTRADA
1-19 LA ENTRADA 2
1-14 BRESSI PS
1-13 SERRANO CONSOLIDATION
1-13 SERRANO CONSOLIDATION
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DowntownZone
HighPressureZone CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-5
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
1-38 MARSH
3-10 HILL
3-14 PEACH
3-18 MONTEREY
1-46 LINCOLN
2-7 OLIVE
1-44 JOHNSON
1-9 HATHWAY/MONTALBON PRV
1-22 FREDERICKS
2-20 SANTA ROSA
2-1 SAN LUIS DRIVE 2
1-4 BISHOP CONSOLIDATION
2-7 OLIVE
1-35 IRIS
2-24 STENNER
2-20 SANTA ROSA
2-19 MILL
3-17 WEST
1-5 BISHOP CONTROL VALVE
1-1 CAZADERO PRV
3-7 MILL 2
1-4 BISHOP CONSOLIDATION
1-4 BISHOP CONSOLIDATION
1-20 MURRAY
2-31 HOPE
1-42 CALIFORNIA
2-8 GARFIELD
3-12 TAFT
1-28 HILLCREST
1-31 CHORRO
1-31 CHORRO
1-41 MOUNTAIN VIEW
3-4 JOHNSON 2
3-11 CHORRO 4
3-13 PACIFIC 2
1-47 HIGUERA 1-43 SAN LUIS DRIVE
1-13 SERRANO CONSOLIDATION
2-24 STENNER
1-20 MURRAY
3-8 LOOMIS
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AndrewsStreetZone
DowntownZone
HighPressureZone
HWY
1
0
1
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-6
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
1-35 IRIS
1-45 SAN MIGUEL
3-8 LOOMIS
3-8 LOOMIS
3-8 LOOMIS
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HighPressureZone
FoothillZone
HWY 101
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-7
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
TH
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Attachment 1
LO
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CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-8
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
TH
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Attachment 1
2-9 DANA
2-14 MADONNA
1-36 PACIFIC
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1
0
1
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-9
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
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2-16 SYDNEY
1-6 BISHOP PS
1-37 CHORRO 2
3-16 RAILROAD
2-15 FLORA 2
3-15 REBA 2-18 GERDA
2-20 SANTA ROSA
1-40 SIERRA WAY
1-4 BISHOP CONSOLIDATION
3-9 GRETA2-22 FUNSTON
1-35 IRIS
2-15 FLORA 2
2-11 MUTSUHITO
1-4 BISHOP CONSOLIDATION
1-4 BISHOP CONSOLIDATION
2-21 WOODBRIDGE
1-7 WOODBRIDGE ZONE CHANGE
1-8 SWAZEY ZONE CHANGE
1-26 BLVD DEL CAMPO
1-36 PACIFIC
1-33 WILDING
1-26 BLVD DEL CAMPO
3-5 SENDERO
2-12 BISHOP
2-11 MUTSUHITO
PACIF
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DowntownZone
HighPressureZone
FoothillZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-10
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
TH
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Attachment 1
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2-15 FLORA 2
2-10 LAUREL LANE
2-18 GERDA
1-25 EL PASEO
2-17 SYDNEY 2
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AlritaZone
TerraceHill Zone
HighPressureZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
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PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-11
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
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EdnaSaddleZone CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
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PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-12
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
2-23 OCEANAIRE
2-14 MADONNA
2-14 MADONNA
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CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
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PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-13
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
3-16 RAILROAD
3-16 RAILROAD
2-11 MUTSUHITO 2-11 MUTSUHITO
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ORCUTT
PRADO
EdnaSaddleZone
TerraceHill Zone
DowntownZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
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8 9 10 11
12 13 14 15
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PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-14
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
1-2 INDUSTRIAL ZONE CHANGE
2-10 LAUREL LANE
CAM
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INDUSTR
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SA
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EdnaSaddleZone
TerraceHill Zone
Islay
Zone
HighPressureZone
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-15
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
2-13 CALLE JOAQUIN
CA
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EdnaSaddleZone
HW
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1
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1
CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
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5 6
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16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-16
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
HIND
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CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-17
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
3-6 BROAD
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CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
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8 9 10 11
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16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-18
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
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Zone CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
1
2 3 4
5 6
8 9 10 11
12 13 14 15
16 17 18 19
7
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
FIGURE 9-19
Index Map
CAPITAL IMPROVEMENTPROJECTS
O 0 500250Feet
1 inch = 500 feet
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
EXISTING WATER MAIN
Priority 3 CIPEXISTING WATER MAIN
PRIORITY 2 CIPEXISTING WATER MAINPROPOSED WATER MAIN
PRIORITY 1 CIPEXISTING WATER MAINPROPOSED WATER MAIN
Attachment 1
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Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
10‐1
10: Future Water Distribution System Overview
Significant changes to the water distribution zones and the facilities that serve each zone are proposed
throughout this report. This chapter provides an overview of the water distribution system once all of
the zone consolidations occur. It is anticipated that the City will transition to this future scenario over a
5 to 10 year period. All tables and figures are located at the end of this chapter.
Water Distribution Zones
The proposed future water distribution system will consist of 9 zones. The distribution zones are listed
as follows:
Alrita High Pressure
Andrews Reservoir Canyon
Downtown Rosemont
Edna Saddle Terrace Hill
Foothill
A list of each of the distribution zones and their defining features are presented in Table 10‐1 and are
illustrated in Figure 10‐1. Figures 10‐2 provide a graphic representation of the hydraulic profile of the
future water distribution system. This figure illustrates how each tank and pump station will
hydraulically interact with one another and their relationship to the distribution zone(s) they will serve
in the future. Figure 10‐3 illustrates the location of water customers that will move from zone to
another.
Specific Plan Areas
As part of this Water Master Plan, the Orcutt Area, Airport Area and the Margarita Area were more
closely analyzed based on the proposed layouts at the time of the report. Appendix D provides the
exhibits of the proposed layouts of the water distribution system based on the proposed street layout,
development demands, and required fire flow.
Attachment 1
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CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
FIGURE 10-1
FUTURE WATERDISTRIBUTION ZONES
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
O 0 3,5001,750 Feet
1 inch = 3,500 feet
LEGEND
DISTRIBUTION ZONE
ROSEMONT
HIGH PRESSURE
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CITY LIMITS
UT STORAGE TANK
[Ú PUMP STATION
"5 PRESSURE REDUCING VALVE
%,WT WATER TREATMENT PLANT
1
2
3
4
5
6
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Attachment 1
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WELL FS #4WELL PB #1
200
100
120
140
160
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300
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240
260
280
400
320
340
360
380
500
420
440
460
480
600
520
540
560
580
700
620
640
660
680
720
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ROSEMONT TANK
0.04 MG
RESERVOIR
CANYON PS
WATER
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0.64 MG
ISLAY TANK
0.40 MG
200
100
120
140
160
180
300
220
240
260
280
400
320
340
360
380
500
420
440
460
480
520
540
560
580
DOWNTOWN
ZONE
ROSEMONT
ZONE
FOOTHILL
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60
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FUTURE
RESERVOIR #2
5 MG (2 TANKS)
HIGH PRESSURE
ZONE
TERRACE HILL
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ALRITA
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HYDROPNUEMATIC
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EDNA SADDLE ZONE
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TRANSFER PS
*TANK VOLUMES PROVIDED REFLECT USABLE VOLUME
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432
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LEGEND:
NORMALLY CLOSED
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VALVE
ZONE BOUNDARY
REPRESENTS HIGH
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WITHIN EACH ZONE
CONNECTION TO
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TANK
FLOW DIRECTION
CHECK VALVE
CONSTRUCTION MANAGEMENT
PUBLIC WORKS ADMINISTRATION
www.wallacegroup.us
WATER RESOURCES
SURVEYING / GIS SOLUTIONS
LANDSCAPE ARCHITECTURE
MECHANICAL ENGINEERING
PLANNING
CIVIL AND TRANSPORTATION
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!n
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1
3
4
5
7
9
8
6
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CITY OF SAN LUIS OBISPOWATER SYSTEM MASTER PLAN
FIGURE 10-3
CUSTOMERS IMPACTEDBY DISTRIBUTION ZONECHANGES
PROJECT NOTES: MAP PREPARED BY RINCON CONSULTANTS, INC. GIS DATA PROVIDED BY CITY OF SAN LUIS OBISPO.JOB NO: 0061-0072CREATED BY: KHDATE: APRIL 2015
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us
CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
O 0 3,5001,750 Feet
1 inch = 3,500 feet
LEGEND
DISTRIBUTION ZONE
ROSEMONT
HIGH PRESSURE
FOOTHILL
ANDREWS
RESERVOIR CANYON
DOWNTOWN
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RESERVOIR
PARCELS
WATER MAIN
UT STORAGE TANK
[Ú PUMP STATION
"5 PRESSURE REDUCING VALVE
%,WT WATER TREATMENT PLANT
1
2
3
4
5
6
7
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Attachment 1
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Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
11‐1
11: Appendix A: Pump Curves
Attachment 1
THIS PAGE LEFT INTENTIONALLY BLANK
Attachment 1
BishopPumpStation
Attachment 1
BressiPumpStation
Attachment 1
SECTION
PAGE
DATE
USA: (937) 778-8947 • Canada: (905) 457-6223 • International: (937) 615-3598A Crane Co. Company
Split Case Pumps - Horizontally Mounted
73
1200
www.cranepumps.com
Performance Curves
5L1
Bulletin 1200
12/09
FerriniPumpStation
Attachment 1
Centrifugal Pumps
18
Close-Coupled D-Series
Model DB1 Performance: 1” Discharge x 1-1/2” Suction (3600 RPM)
6-7/16 DIA.
6-1/8 DIA.
5-1/2 DIA.
5-3/16 DIA.
4-3/4 DIA.
4-1/4 DIA.
50%52%
58%
56%
54%
52%50%5 BHP
3 BHP
2 BHP
1.5 BHP
1 BHP
.75 BHP
NPSHR
0102030405060 70 80GPM
NP
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H
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-
F
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10
20
30
CAPACITIES - GALLONS PER MINUTE
0
10
20
30
40
50
60
70
80
90
100
110
120
50
0
100
150
200
250
PS
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20
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10
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5
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10
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PS
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52%
54%
56%
52%
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.5 BHP
.3 BHP
ReservoirCanyonPumpStation Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
12‐1
12: Appendix B: Pump Station Evaluation
Attachment 1
THIS PAGE LEFT INTENTIONALLY BLANK
Attachment 1
Attachment 1
BishopPumpStation-Exterior Attachment 1
BishopPumpStation-Interior Attachment 1
BishopPumpStation-InteriorAttachment 1
Attachment 1
BressiPumpStation-Exterior
Attachment 1
BressiPumpStation-
Interior
Attachment 1
BressiPumpStation-
Interior
Attachment 1
Attachment 1
FerriniPumpStation-
ExteriorandInterior
Attachment 1
FerriniPumpStation-
Interior
Attachment 1
Attachment 1
McCollumPumpStation-
Exterior
Attachment 1
McCollumPumpStation-
Interior
Attachment 1
McCollumPumpStation-
Interior
Attachment 1
Attachment 1
ReservoirCanyonPump
Station-ExteriorandInterior
Attachment 1
ReservoirCanyonPump
Station-Interior
Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
13‐1
13: Appendix C: Fire Hydrant Test Results
Attachment 1
THIS PAGE LEFT INTENTIONALLY BLANK
Attachment 1
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Attachment 1
City of San Luis Obispo Water Master Plan. April 2015 Draft‐Final.
14‐2
14: Appendix D: Specific Plan Water Distribution
System Layout Exhibits
Attachment 1
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Attachment 1
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Recommended WaterDistribution SystemImprovements for OrcuttArea Developments
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EXHIBIT NOTES:WALLACE GROUP DID NOT PERFORM SURVEY SERVICES FOR THIS MAP. NOT A LEGAL DOCUMENT.
CITY OF SAN LUIS OBISPO WATER SYSTEM MASTER PLANO JOB NO:061MAP DOC:WATER MASTER PLAN.MXDCREATED BY:AGDATE:07/12/2013
612 CLARION COURTSAN LUIS OBISPO, CA 93401T 805 544-4011 F 805 544-4294www.wallacegroup.us NTS
FIGURE 1CIVIL ENGINEERING & TRANSPORTATIONCONSTRUCTION MANAGEMENTLANDSCAPE ARCHITECTUREMECHANICAL ENGINEERINGPLANNINGPUBLIC WORKS ADMINISTRATIONSURVEYING/GIS SOLUTIONSWATER RESOURCESWALLACE SWANSON INTERNATIONAL
Legend
PROPOSED PIPE/ DIAM81012EXISTING PIPE/ DIAM6 8101214161820242730Airport Area
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