HomeMy WebLinkAboutItem 2 - ARCH-0347-2017 (35 Prado)ARCHITECTURAL REVIEW COMMISSION AGENDA REPORT
SUBJECT: Architectural review of the City of San Luis Obispo’s Water Resource Recovery Facility
(WRRF) Upgrade Project that includes new discharge requirements, increased capacity, replacement
of aging infrastructure, maximized recycled water production and incorporated interpretive features
and public amenities, production and incorporated interpretive features and public amenities. Council
certified the Final Environmental Impact Report (FEIR) for the project on August 16, 2016.
PROJECT ADDRESS: 35 Prado BY: Rachel Cohen, Associate Planner
(25, 29, 41, 43, & 45 Prado) Phone Number: (805) 781-7574
e-mail: rcohen@slocity.org
FILE NUMBER: ARCH-0347-2017 FROM: Doug Davidson, Deputy Director
RECOMMENDATION: Adopt the Draft Resolution based on findings, and subject to conditions
(Attachment 1).
SITE DATA
Applicant City of SLO Public Utilities
Department
Representative Jennifer Phillips, Engineer with
CH2M
Zoning PF (Public Facility)
General Plan Public
Site Area 48.06 Acres
Environmental
Status
Council Certified the FEIR on
August 16, 2016
SUMMARY
The applicant has submitted plans for the Water Resource Recovery Facility (WRRF) located at 35
Prado Road. The proposed project includes an in-depth upgrade to the existing WRRF to meet new
discharge permit requirements, increase capacity to meet future flows and loads under dry and wet
weather conditions, replace aging infrastructure, maximize recycled water production and incorporate
interpretative features and public amenities. A conceptual version of the project was reviewed by the
Architectural Review Commission (ARC) in July 2017 and the ARC provided comments and
direction to the applicant regarding the project design. The applicant has submitted updated
architectural plans that incorporate the ARC’s direction as well as the direction provided within the
Community Design Guidelines (CDG).
Meeting Date: January 29, 2018
Item Number: 2
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1.0 COMMISSION’S PURVIEW
The ARC’s role is to review the project in terms of its consistency with the City’s General Plan,
Community Design Guidelines (CDG) and applicable City standards.
2.0 PROJECT INFORMATION
2.1 Background
• On July 7, 2015, Council adopted the Water Resource Recovery Facility Project Facilities
Plan and authorized the issuance of a request for proposals for design engineering services.
CH2M was awarded this contract in November 2015.
• On August 16, 2016, the Council adopted a resolution certifying the EIR so that the City
could proceed with construction on the WRRF Project and obtain State Revolving Fund
funding.
• July 10, 2017, ARC reviewed the Conceptual design of the upgrade to the existing WRRF.
The ARC provided direction and comments which are included as Attachment 5.
• January 10, 2018, the Planning Commission approved an update to an existing Use Permit
for the WRRF to meet new discharge permit requirements, increase capacity, replace
aging infrastructure, maximize recycled water production and incorporate public
amenities and interpretive features.
2.2 Site Information/Setting
The subject property is located on the south side of Prado Road adjacent to Highway 101 and JB
Dewar Inc. within the PF (Public Facilities) zone (see Attachment 2, Vicinity Map). The project
site is approximately 48.06 acres and contains various structures (including tanks, sheds and
buildings) and ponds associated with the WRRF as well as the City’s Transit Bus Yard and the
Corporation Yard (Attachment 4, Project Plans, Sheet 2).
Table 1: Site Information/Setting
Site Size ~48.06 acres
Present Use & Development City of SLO Corporation Yard, WRRF, and Transit Bus Yard
Topography Relatively flat with some slight slopes
Land Use Designation Public Facility (PF)
Current Access From Prado Road
Surrounding Use/Zoning North: Office with PD overlay (O-PD) and Office with Special Focus
Overlay (O-SF); Vacant parcel, U-haul rental, and Homeless Services
Center.
South: Conservation/Open Space (C/OS); City Open Space and a
portion of the Bob Jones Trail.
East: Service Commercial (C-S) and Medium Density Residential (R-
2-S); various businesses and Silver City Mobile Home Park.
West: Highway 101.
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Table 2: Project Statistics
Item Proposed 1 Ordinance
Standard 2
Street Yard Setback 165’ 15’
Other Yard Setback 0‘ 0‘
Max. Height of Structure(s) 35’
Water Resource Center 31’ 9 ¾”
Sidestream Treatment Structure 20’
Effluent Cooling Structure 15’
Building Coverage (footprint) ~16% 60%
Parking Spaces 112 59
Short-term Bicycle Parking 10 0
Long-term Bicycle Parking 15 0
Notes: 1. Applicant’s project plans
2. City Zoning Regulations
2.3 Project Description
The proposed project includes an in-depth upgrade to the existing WRRF to meet new discharge
permit requirements, increase capacity to meet future flows and loads under dry and wet weather
conditions, replace aging infrastructure, maximize recycled water production and incorporate
interpretative features and public amenities. An extensive discussion on the upgrades and
expansion are included in the attached Project Narrative (Attachment 3).
The project includes the following components:
• A new Water Resource Center (WRC) that includes:
o Office space for staff from the WRRF, Wastewater Collections, Water Distribution
and Environmental Compliance in one location,
o A water quality laboratory;
o Maintenance facility;
o Interpretive center for the community, and
o An interpretive landscape and demonstration wetland.
• The existing Administration Building will be converted to a process laboratory for use by
WRRF operations staff;
• The existing Operations Building and some of the maintenance sheds will be demolished
(see Attachment 4, Project Plans, Sheet 3);
• The existing Process Laboratory at the Dewatering Facility will remain; and
• 112 vehicle parking spaces, 5 motorcycle spaces and 25 short-term bicycle parking spaces.
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3.0 PROJECT ANALYSIS
The ARC’s role is to review the project in terms of its consistency with the General Plan, Community
Design Guidelines (CDG) and applicable City standards. In addition, the ARC also provided
comments about the project at a conceptual review of the project in July 2017. Below is a discussion
of the project’s consistency with City policy and guidelines as well as the ARC’s direction (see
Attachment 5 for full list of ARC comments and direction).
3.1 General Design Objectives
The CDG discuss that an industrial site design should include various elements.1 The proposed project
includes many of these elements including the following:
• Buildings and parking areas have various setbacks throughout the site;
• Landscape buffers are located between buildings, parking areas and Prado Road;
• Landscaping is dispersed throughout the site;
• The Water Resource Center (WRC) includes a courtyard area with planters and areas for
sitting; and
• The main entrance to the facility is easily identifiable and highlighted with landscaping.
Per direction provided by the ARC, the applicant has included photos of the existing facility within
the Project Narrative (Attachment 3, Attachment A).
3.2 Architectural Design
The existing structures within the project consist mainly of industrial sheds, tanks, storage facilities,
1 CDG Section 3.3.A: General design objectives
Figure 1: Bird's eye view of the Water Resource Center
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office space and other industrial type structures. Due to the nature of the facility, most of the
architectural design is based on the function of the equipment within the waste water treatment
process (Project Narrative, Attachment 3). Most of these structures are not visible from the public
right of way. The project is proposing to modify or even demolish and rebuild several structures on
the site (Project Narrative, Attachment 3, pg. 4-1). One of the most notable new structures is the
WRC. The building will house City staff, but also includes space for public education.
3.2.1 Water Resource Center (WRC)
The architectural design of the WRC follows the CDG for industrial structures by incorporating
sloped roofs, articulated facades, variation in the use of colors, textures and materials.2 Materials
include:
• Metal standing seam roof
• Corrugated metal panel siding
• CMU walls
• Metal accent panels
• Wood siding
Per ARC direction, the project has modified the project to include a concrete bulkhead/stemwall,
added color (yellow) accents on the doors and windows, and uses durable materials. Based on
feedback from the ARC, the design of the WRC includes a courtyard area with amphitheater style
seating, landscape planters, and pathways, that are ADA accessible, out to the demonstration wetland.
2 CDG Section 3.3.B. Architectural Design.
Figure 2: Rendering of the Water Resource Center
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Parking for the facility is mainly located behind the structure with visitor and bus parking (for two
buses) available in front (Project Plans, Sheet 33). The applicant has modified the plans, per ARC
Figure 3: Elevation views of the multi-sided Water Resource Center (WRC)
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direction, to include permeable pavers within the visitor parking area to increase water infiltration on
the site, 10 short-term bicycle parking spaces for visitors and 15 long-term bicycle parking enclosed
in a small structure for staff behind the WRC.
The project includes several cement walls that
create the amphitheater style seating area and is
proposing to use Omega fencing, Architectural
model (see Figure 4). The Omega fence is a made
of steel with a zinc coating and black powder
coating.
3.3 Landscaping Design
The project proposes to add additional landscaping
throughout the entire WRRF site (Project Plans,
Attachment 4, Sheets 23-27). Landscaping includes
demonstration areas as well as planted areas along
parking areas and structures. The WRC will
include a demonstration wetland with pathways and
specific plant species that thrive in that
environment. Sheet 27 of the Project Plans provides
details of the hardscape, fencing, planters and water
levels in the demonstration area.
In regard to existing trees and shrubs on the site, the
project is proposing to remove approximately 118
trees and shrubs. A detailed report on the existing trees and shrubs shows that a majority of these
plants are in fair or poor health (Project Narrative, Attachment 3, Attachment B). The landscape plan
indicates that the project will replant 129 trees on the site. The City Arborist has been out to the site
and reviewed the arborist report and supports the proposed tree and shrub removals. Condition no. 11
states that the building plan submittal shall show the final mix of tree planting size, location, and
species to the satisfaction of the Community Development, Utilities and Public Works Directors. The
Bob Jones Pedestrian and Bike Trail runs along the facility and per comments from the ARC during
the conceptual review, staff is recommending condition no. 12 which requires that the applicant plant
additional trees and shrubs along the existing chain-link fence on the path to soften the view of the
site from the path.
4.0 OTHER DEPARTMENT COMMENTS
Project plans were reviewed by the Building & Safety Division and the Fire, Public Works, and
Utilities Departments. Relevant comments from these reviewers have been incorporated into the
recommended resolution as conditions of architectural review approval.
5.0 ALTERNATIVES & RECOMMENDATION
5.1 Deny the project based on findings of inconsistency with the General Plan and Community
Design Guidelines.
Figure 4: Omega "Architectural" style fence
proposed for the project
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5.2 Continue the project to a date uncertain with direction to the applicant and staff on pertinent
issues to be addressed.
6.0 ATTACHMENTS
1. Resolution
2. Vicinity Map
3. Project Narrative
4. Project Plans
5. ARC Direction and Comments, Conceptual Review - July 10, 2017
Included in Commission Member Packet: Project Plans
Available at ARC Hearing: Color and Materials Boards
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RESOLUTION NO. ARC- -17
A RESOLUTION OF THE SAN LUIS OBISPO ARCHITECTURAL REVIEW
COMMISSION APPROVING UPGRADES TO THE WATER RESOURCE RECOVERY
FACILITY THAT INCLUDES NEW DISCHARGE REQUIREMENTS, INCREASED
CAPACITY, REPLACEMENT OF AGING INFRASTRUCTURE, MAXIMIZED
RECYCLED WATER PRODUCTION AND INCORPORATED INTERPRETIVE
FEATURES AND PUBLIC AMENITIES, PRODUCTION AND INCORPORATED
INTERPRETIVE FEATURES AND PUBLIC AMENITIES, AS REPRESENTED IN THE
STAFF REPORT AND ATTACHMENTS DATED JANUARY 29, 2018,
35 PRADO ROAD (25, 29, 41, 43, & 45 PRADO) (ARCH-0347-2017)
WHEREAS, the Architectural Review Commission of the City of San Luis Obispo
conducted a public hearing in the Council Hearing Room of City Hall, 990 Palm Street, San Luis
Obispo, California, on January 29, 2018, pursuant to a proceeding instituted under ARCH-0347-
2017, City of San Luis Obispo, applicant; and
WHEREAS, the Architectural Review Commission of the City of San Luis Obispo has
duly considered all evidence, including the testimony of the applicant, interested parties, and
evaluation and recommendations by staff, presented at said hearing.
WHEREAS, notices of said public hearing were made at the time and in the manner
required by law; and
NOW, THEREFORE, BE IT RESOLVED by the Architectural Review Commission of the
City of San Luis Obispo as follows:
SECTION 1. Findings. The Architectural Review Commission hereby grants final
approval to the project (ARCH-0347-2017), based on the following findings:
1. The project will not be detrimental to the health, safety, and welfare of persons living or
working at the site or in the vicinity because the project will be compatible with the scale of
the site.
2. The project is consistent with Water and Wastewater Element Goals A 7.1.1, A 7.1.2, B
3.1.2, B 2.1, and B 3.1.1 and Policies A 7.2.2, B 3.2.2, B 2.2.2 and 3.2.1 because the project
will: maximize production of recycled water to preserve potable water sources; increase
capacity to meet future growth and increased flows; meet new State discharge permit
requirements; and replace aging infrastructure.
3. The upgrades to the Water Resource Recovery Facility are consistent with the Zoning
Regulation development standards.
4. All potentially significant environmental impacts were analyzed adequately in the Final
Environmental Impact Report (FEIR) certified by the City Council on August 16, 2016 and
ATTACHMENT 1
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Resolution No. ARC- -18
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the proposed project shall be subject to the FEIR mitigation measures outlined in City
Council Resolution No. 10740 (2016 Series).
SECTION 2. Action. The Architectural Review Commission (ARC) hereby grants final
approval to the project with incorporation of the following conditions:
Planning
1. The applicant shall defend, indemnify and hold harmless the City and/or its agents, officers
and employees from any claim, action or proceeding against the City and/or its agents,
officers or employees to attack, set aside, void or annul, the approval by the City of this
project, and all actions relating thereto, including but not limited to environmental review
(“Indemnified Claims”). The City shall promptly notify the applicant of any Indemnified
Claim upon being presented with the Indemnified Claim and the City shall fully cooperate
in the defense against an Indemnified Claim.
2. Project shall comply with all conditions outlined in Planning Commission Resolution No.
PC-1001-2018 (2018 Series).
3. Final project design and construction drawings submitted for a building permit shall be in
substantial compliance with the project plans approved by the ARC. A separate, full-size
sheet shall be included in working drawings submitted for a building permit that lists all
conditions and code requirements of project approvals listed as sheet number 2.
4. Reference shall be made in the margin of listed items as to where in plans requirements are
addressed. Any change to approved design, colors, materials, landscaping, or other
conditions of approval must be approved by the Director or Architectural Review
Commission, as deemed appropriate.
5. Plans submitted for a building permit shall call out the colors and materials of all proposed
building surfaces and other improvements. Colors and materials shall be consistent with the
color and material board submitted with Architectural Review application.
6. The locations of all lighting, including bollard style landscaping or path/parking lighting,
shall be included in plans submitted for a building permit. All wall-mounted lighting fixtures
shall be clearly called out on building elevations included as part of working drawings. All
wall-mounted lighting shall complement building architecture, subject to the approval of the
Community Development Director. The lighting schedule for the building shall include a
graphic representation of the proposed lighting fixtures and cut-sheets on the submitted
building plans. The selected fixture(s) shall be shielded to ensure that light is directed
downward consistent with the requirements of the City’s Night Sky Preservation standards
contained in Chapter 17.23 of the Zoning Regulations.
7. Final plans shall clearly depict the location and dimensions of all short and long-term bicycle
parking. Sufficient detail shall be provided about the placement and design of bike racks and
ATTACHMENT 1
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Resolution No. ARC- -18
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lockers to demonstrate compliance with relevant Engineering Standards and Community
Design Guidelines, to the satisfaction of the Public Works and Community Development
Directors.
8. Plans submitted for a building permit shall include window details indicating the type of
materials for the window frames and mullions, their dimensions, and colors for the Water
Resource Center. Plans shall include the materials and dimensions of all lintels, sills,
surrounds recesses and other related window features. Plans shall demonstrate the use of high
quality materials for the windows that reflect the architectural style of the project and are
compatible with the neighborhood character, to the approval of the Community Development
Director.
9. Mechanical and electrical equipment shall be located internally for the Water Resource
Center building. With submittal of working drawings, the applicant shall include sectional
views of the building, which clearly show the sizes of any proposed condensers and other
mechanical equipment. If any condensers or other mechanical equipment is to be placed on
the roof, plans submitted for a building permit shall confirm that parapets and other roof
features will adequately screen them. A line-of-sight diagram may be required to confirm
that proposed screening will be adequate. This condition applies to initial construction and
later improvements.
10. The location of any required backflow preventer and double-check assembly shall be shown
on all site plans submitted for a building permit, including the landscaping plan. Construction
plans shall also include a scaled diagram of the equipment proposed. Where possible, as
determined by the Utilities Director, equipment shall be located inside the building within
20 feet of the front property line. Where this is not possible, as determined by the Uti lities
Director, the back-flow preventer and double-check assembly shall be located in the street
yard and screened using a combination of paint color, landscaping and, if deemed appropriate
by the Community Development Director, a low wall. The size and configuration of such
equipment shall be subject to review and approval by the Utilities and Community
Development Directors.
11. The City Arborist supports the proposed trees and shrubs removal with the compensatory
tree planting as shown on the landscape plans. The building plan submittal shall show the
final mix of tree planting size, location, and species to the satisfaction of the Community
Development, Utilities and Public Works Directors.
12. The building plan submittal shall include additional trees and shrubs planted along the chain-
link delineation fence between the WRRF and the Bob Jones Pedestrian and Bike Path to the
satisfaction of the Community Development, Utilities, and Public Works Directors.
13. A final landscaping plan, including irrigation details and plans, shall be submitted to the
Community Development Department along with working drawings. The legend for the
landscaping plan shall include the sizes and species of all groundcovers, shrubs, and trees
with corresponding symbols for each plant material showing their specific locations on plans.
ATTACHMENT 1
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Resolution No. ARC- -18
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14. The applicant shall indicate on the building plans all fence and wall design details (colors,
materials, type, etc.) to the satisfaction of the Community Development Director.
Public Works
15. The building plan submittal shall show compliance with the Floodplain Management
Regulations. New buildings, building service equipment, and utilities shall be protected to a
minimum of 1’ above the base flood elevation (BFE) where the 100-year flood depths are
known. The plans shall honor the existing floodzone requirements, but shall also show
compliance in areas of known flooding. The project designs should honor the depth of the
flooding identified in the current studies. Use of the most conservative BFE would be prudent
if the project is processed prior to an effective date of the proposed LOMR for San Luis
Ranch. The plans shall show a minimum of 1’ of freeboard above the BFE for any elevated
equipment, flood-resistant construction, or floodproofing. Additional freeboard up to 2’ is
recommended, but is not required.
16. The building plans submittal shall show and note compliance with the Post Construction
Stormwater Regulations (PCR's). The final documentation shall be revised to eliminate the
request for approval of alternate compliance and a treatment reduction down to 10% for
DMA1 unless otherwise approved by the Public Works Department and Regional Water
Quality Control Board.
17. An Operation and Maintenance Manual and a Private Stormwater Conveyance Agreement
shall be processed and approved in conjunction with the building permit in accordance with
the PCR's.
18. The building plan submittal shall show compliance with the Parking and Driveway Standards
for all new and altered passenger vehicle parking areas. Maintenance and specialty vehicle
parking areas are not subject to this requirement. The applicant should consider the use of
permeable paving for all new vehicle parking areas, patios, and walkways in accordance with
General Plan Land Use Policy 6.6.5 & 6.6.6. Finger planters within the parking bays should
utilize flush curbs or curb openings and could be designed in accordance with current
stormwater Low Impact Development Best Management Practices.
Fire
19. Each building fire sprinkler riser shall be in an interior fire sprinkler riser room with exterior
door access.
Transportation
20. The building plan submittal shall include a redesign of the Driveway Entrance opposite Elks
lane consistent based upon the results of the intersection study to the satisfaction of the Public
Works Director.
ATTACHMENT 1
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Resolution No. ARC- -18
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21. The building plan submittal shall show the entire width of Prado Road along the project
frontage and approximately 75 feet to the east along JB Dewer.
22. Prior to the issuance of building permits curb, gutter, and street paving shall be installed
along the project frontage conforming to the cross sections of the Prado Road Interchange &
Prado Road Creek Bridge Widening Projects. Improvements East of the driveway at the
future Elks lane shall be in permanent form whereas improvements to the West of the
driveway may be temporary as they will be reconstructed as part of the Prado Road
Interchange.
23. The most Easterly driveway adjacent to JH Dewer shall be maintained as a locked special
use driveway. Use of this driveway should be restricted to only when conditions make access
at the Primary driveways not reasonably accessible. When the driveway is in use drivers shall
be assisted by a flagger per the California Manual on Uniform Traffic Control Devices. Signs
shall be mounted to the gate facing both the public right of way and the project site informing
drivers of these restrictions.
On motion by_______________, seconded by _______________, and on the following roll
call vote:
AYES:
NOES:
REFRAIN:
ABSENT:
The foregoing resolution was passed and adopted this 29th day of January 2018.
_____________________________
Doug Davidson, Secretary
Architectural Review Commission
ATTACHMENT 1
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PF
R-2-S
C-S
O-PD
C-C-SF
O-PD
C-S-S
PF-S
C-S-S
M-SP
C-S-SP
C/OS-20
C-S-SP
C-R-PD
O-SF
C-S
C/OS-20
C-S-S
C-S
C-S-SP-PD
C-T-SF
M-SP M-SP
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HINDELKSZACA
ELM CENTERPINE HIGUERA SMEISSNER
MAPL
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BIRC
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VICINITY MAP ARCH-0347-2017
35 Prado Road ¯
ATTACHMENT 2
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Final Architectural Review Submittal
PREPARED FOR: City of San Luis Obispo
PREPARED BY: CH2M, MWA Architects, Cannon
DATE: November 29, 2017
PROJECT: Water Resource Recovery Facility Project
PROJECT NUMBER: 668876
1. Water Resource Recovery Facility
Introduction
The Water Resource Recovery Facility (WRRF) receives and treats municipal wastewater from the City of
San Luis Obispo, including contributions from California Polytechnic State University and the County
Airport. The City is undertaking an upgrade to the WRRF to meet new discharge permit requirements
effective November 30, 2019, increase capacity to meet future flows and loads under dry and wet
weather conditions, replace aging infrastructure, maximize recycled water production and incorporate
interpretative features and public amenities. Design influent flows and loads are based on projected
demands for 2035 buildout aligned with population growth projections, as outlined in the San Luis
Obispo 2010 General Plan. The WRRF effluent will be treated to meet National Pollutant Discharge
Elimination System (NPDES) permit and Title 22 recycled water permit requirements for discharge to the
San Luis Obispo Creek and reuse. The design average dry weather influent flow is 5.4 million gallons per
day (mgd).
The following Architectural Review Narrative has been provided to the City of San Luis Obispo (SLO)
Architectural Review Commission (ARC) in order to provide a basis of design, existing conditions
observations and approach to building concept development for SLO Public Utilities activities for the
WRRF Upgrade Project (Project). The WRRF Project will modify existing process facilities, add new
process facilities, and provide a new Water Resource Center campus that will house Public Utilities staff,
a water quality laboratory, maintenance functions and an educational interpretive center for interface
with the community. While the entire project is being submitted to the ARC for the Final Review, special
focus on the Water Resource Center is requested as it will be the public face and entry to the WRRF, will
invite engagement with the community, and will be visible from Prado Road and the future Highway 101
overpass. Based on feedback from the ARC during the Conceptual Review, the facilities viewable from
the Bob Jones Trail are also highlighted.
Site Data
The City of San Luis Obispo (City) owns and operates the WRRF, which is located at 35 Prado Road, San
Luis Obispo, CA 93401. The WRRF shares Assessor Parcel Number (APN): 053‐051‐045 with other City
functions, including the City Corporation Yard (25 Prado Road) and the San Luis Obispo Transit Bus Yard
ATTACHMENT 3
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1. WATER RESOURCE RECOVERY FACILITY
FINAL ARCHITECTURAL REVIEW SUBMITTAL
1‐2
(29 Prado Road). These functions are separated by security fencing. The City of San Luis Obispo property
boundary also encompasses APN 053‐131‐013 and 053‐141‐012. Under this project, all of the work will
be completed in APN 053‐051‐045. No work will be performed in APN 053‐131‐013 and APN 053‐141‐
012.
The 88.38 ± acre property is defined by Prado Road to the north, U.S. Highway 101 to the west, the San
Luis Obispo Creek and Bob Jones Trail to the east and Los Osos Valley Road to the south. The two Site
Zoning Exhibits show the project site and vicinity, and identify the zoning information and adjacent
properties. It is located within the Land Use and Circulation Planning Subarea (LUCE SOI) and the Urban
Reserve area per Figures 1 and 2 of the SLO Land Use Element adopted December 9, 2014.
The property is designated as Public/Government Facilities (PF) use for commercial land with no
identified overlays or sub‐districts per the SLO Zoning Map. This use designation, “… provides for public,
cultural, and quasi‐public uses to meet the needs of city and county residents.” In addition, the
property is also designated as a social services area per Figure 5 of the SLO Land Use Element.
The site data is provided in Table 1.
TABLE 1 ‐ SITE DATA
Applicant City of San Luis Obispo
Representative Jennifer Phillips, CH2M
Parcels APN: 053‐051‐045, 053‐131‐013, 053‐141‐012
Zoning Government / Vacant Commercial
General Plan Upgrade of Water Resource Recovery Facility
Site Area Overall: 88.38 ± acres
Affected: 35 ± acres
Environmental Status The Final Environmental Impact Report (EIR) for
the project was prepared in accordance with the
California Environmental Quality Act (CEQA) and
certified in July 2016.
Project Description
The City began a program to upgrade the WRRF to meet the required performance standards set by the
Regional Water Quality Control Board and the State Water Resource Control Board, as well as achieve
the goals outlined by the City to replace aging infrastructure, maximize recycled water production and
interweave public amenities to provide the community understanding of the One Water strategy.
The One Water strategy views treated wastewater effluent as a valuable resource in water supply
portfolio planning and considers all supplies as ‘One Water.’ An integrated water strategy will maximize
production and beneficial reuse of the WRRF treated effluent, focusing on producing an effluent that
meets recycled water quality to help preserve potable water sources and provide a sustainable water
supply. An integrated water strategy will improve the reliability and redundancy of the City’s
infrastructure, preparing the City for the future and supplementing use through recycled water supply
while meeting the current treatment needs. The WRRF project will provide an upgraded treatment
strategy that will produce high quality effluent that is suitable for recycled water uses and as a potential
ATTACHMENT 3
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1. WATER RESOURCE RECOVERY FACILITY
FINAL ARCHITECTURAL REVIEW SUBMITTAL
1‐3
source for potable reuse. The project allows the City to create a long‐term asset for the community by
educating the public about the value of water as a resource and use of green infrastructure.
The WRRF Project is a critical component of the City’s plan for a sustainable future. The City and its
Program Manager developed a Program Charter to guide the project, establishing a unified project
vision and mission, with objectives and performance measures based on a triple bottom line philosophy
to meet economic, environmental and social criteria. The Program Charter embodies the City’s
commitment to following a triple bottom line approach for the Project, making the WRRF a community
asset that provides the City with long term sustainability and increased water certainty.
A Facilities Plan was issued in June 2015 that outlined improvements to create a valued community
asset and meet the objectives of the Program Charter. Its development incorporated significant public
outreach efforts to involve stakeholders. The conceptual design phase built on these elements and the
Project is currently in the detailed design phase with delivery of final contract documents in the fall of
2018.
Treatment strategies for liquids and solids treatment are being implemented to provide the level of
treatment required for reuse, discharge and disposal, with considerations for space available on‐site,
constructability, optimization of chemical and energy usage, and considerations for future potable
reuse. The modifications to the WRRF will include process facilities and non‐process facilities.
Process Facilities. Process facilities represent the facilities and structures that will house the liquid
stream and solids stream treatment processes and equipment (mechanical, instrumentation and
electrical) to achieve the performance goals of the WRRF.
Non‐Process Facilities. Non‐process facilities represent the Water Resource Center and the
remodeled Administration Building, which provide spaces for the Utilities staff to execute their
responsibilities and for the public to interact with the staff and the WRRF.
The Project will include elements that highlight the Program Charter and City goals:
Explore cost saving opportunities in the management of influent flows and loads. A Value
Engineering process conducted at the 30% design phase enhanced the cost effectiveness and value
of the proposed treatment facilities.
Select treatment processes that position the City for potable reuse and recycled water. A membrane
bioreactor process has been selected for treatment of wastewater to produce a high‐quality effluent
for reuse.
Maximize odor control to enhance the visitor experience and be a good neighbor. The project will
mitigate and control fugitive odors from select process facilities by design.
Create a community legacy through Water Quality Learning. The WRRF and its interpretive features
will help the community understand water as nature’s amazing reusable resource, by providing
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1. WATER RESOURCE RECOVERY FACILITY
FINAL ARCHITECTURAL REVIEW SUBMITTAL
1‐4
information that will help visitors to make intelligent choices about the future of sustainable water
management in San Luis Obispo.
A Rendered Overall Site Plan provides the site plan for the WRRF project facilities, identifying the new
and modified existing facilities.
ATTACHMENT 3
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2‐1
2. Water Resource Center
The original WRRF was built in 1923. In 1984 in response to the California Uniform Building Code and
Title 24 requirements, the Operations Building (and lab at the time) was built as a part of the biofilter
project. All of the non‐process buildings were built between 1992 and 1994. In 1993, the Administration
Building was constructed, and the Operations Building was expanded and remodeled. The lab moved
out of the Operations Building and into the Administration Building at this time. The new lab was built
in 1993.
The current WRRF non‐process buildings include:
WRRF Administration Building
WRRF Operations Building
WRRF Process Laboratory at Dewatering Facility
Maintenance sheds
The Campus currently serving Public Utilities is currently located at 25, 27 and 35 Prado Road within the
parcel (APN: 053‐051‐045). The Facilities Plan defined comprehensive future non‐process needs at the
WRRF. These needs were characterized in program space diagrams, text and renderings. As part of the
Facilities Plan, the team conducted a series of stakeholder interviews and held a community workshop
to communicate the scope and goals of the WRRF Project and better understand the concerns and
preferences of interested parties and the ratepayers to facilitate creation of a community asset. Through
the outreach activities, the public had expressed support for an interpretive center and/or elements at
the WRRF that are integrated with and accessible from the Bob Jones bike trail. The siting of
interpretive elements will be performed in parallel with siting of the treatment upgrades. Project
budget, available footprint, safety and security, accessibility, and proximity to sources of noise and odor
will be considered when siting the interpretive elements.
MWA Architects, as part of the needs verification activities, confirmed the elements of the Facilities Plan
that carried high acceptance by SLO Utilities and the community with Utilities staff through job
shadowing and a series of workshops. Throughout this planning, a combined campus concept evolved to
house staff from the WRRF, Wastewater Collections, Water Distribution and Environmental Compliance
in one location. The campus will also include a water quality laboratory, maintenance facility and
interpretive center for the community. It was concluded by SLO Utilities and MWA Architects that co‐
locating the user groups into a single site within the WRRF Campus better aligns itself with the SLO
General Plan, the SLO Community Design Guidelines and the One Water vision.
Under the WRRF Upgrade Project, the existing Administration Building will be converted to a process
laboratory for use by WRRF operations staff, the existing Operations Building and some of the
maintenance sheds will be demolished, and the existing Process Laboratory at the Dewatering Facility
will remain. Functions related to staff from the WRRF, Wastewater Collections, Water Distribution and
Environmental Compliance will be relocated to the Water Resource Center (WRC) campus.
The consolidation of the activities and user groups conserves land for future expansion, creates a public
asset by establishing a destination around water education that includes a welcoming demonstration
wetland at the site entrance, an extension of the Bob Jones Trail experience, an indoor/outdoor learning
center and self‐guided tours through the use of signage and landscaping. The WRC’s diverse program
expresses itself through dynamic building form, varied building materials, open air circulation, and mini
plazas between the different structures.
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2. WATER RESOURCE CENTER
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There will be (4) four separate functions that comprise the WRC campus: administrative office space
with conference/training rooms, a laboratory, a maintenance shop with warehouse and an interpretive
center. The WRC structures are situated within the PF Public Facility zone. The SLO Zoning Regulations
establish development standards that pertain to height limits, lot coverage and landscaping, accessory
structures, signs, lot size, buffering and screening standards, connectivity standards, and off site impact
standards. The WRC meets the property development standards, community design guidelines and
zoning regulations outlined in the SLO Municipal Code. The WRC has no known needed exceptions to
the property development standards, community design guidelines or the zoning code.
Building Code Summary
For the purposes of this Architecture Review Narrative, WRC’s Administration Building, Laboratory,
Maintenance Shop and Interpretative Center are developed using the current codes cited below:
California 2016 Administrative Code
2016 California Building Code
County of SLO Green Building Ordinance
2016 California Energy Code
2016 California Green Building Standards Code (CalGreen)
2016 California Electrical Code
2016 California Mechanical Code
2016 California Plumbing Code
2016 California Fire Code
City of San Luis Obispo 2016 Construction and Fire Code Amendments
ADA Accessibility Guidelines for Buildings and Facilities – California Title 24
The State of California published the 2016 California Building Code on July 1, 2016, with an effective
date of January 1, 2017. Projects submitted for permitting after January 1, 2017 will be required to meet
the 2016 code, unless the jurisdiction elects to defer adoption. The project team continues to pursue
City of SLO Building Department plan for adoption. For the purposes of this Architecture Review
Narrative, the new 25,222 square feet Water Resource Center is being developed using the current
codes cited above.
The Concept
The design concept for the WRC has evolved through feedback from SLO Utilities staff, Program
Manager WSC and the Community Design Guidelines applied to the architecture and aesthetics for the
new campus. The site circulation of staff, vehicles, and public were also addressed in collaboration with
the civil engineer and landscape architect. The architectural development of the plans, elevations,
exterior building materials and the progression of the site circulation, culminated in the Architectural
Review Package:
The ‘One Campus’ approach of the site design creates interstitial ‘plaza’ spaces for staff,
enhances the landscaping and breaks up the long building facades.
Two story building housing all Prado Road Public Utilities groups to foster collaboration, improve
plant processes and safety.
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2. WATER RESOURCE CENTER
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Open air corridors in the building allowing for low maintenance and cost savings.
Modernist architectural approach with preference study material influences.
An aesthetic that is aligned with ‘One Water.’
Exterior environment brought into the interior of the building by utilizing interior landscaping
and open air corridors.
Secure area for staff with a clear separation between public access and staff access for safety
and security.
The design concept is ‘One Campus.’ This idea has grown from an organizational discussion into a single
architectural expression shared through renderings and site development collaborations with the
landscape architect and stakeholders. Functional adjustments were made to floor plans as new
information came to light during presentations and follow‐on conversations. Parallel to program,
though, has been the testing and creative design required to bring the functional and aesthetic Public
Utilities vision together. Guiding the design work, the ‘One Water’ philosophy provided a secondary lens
influencing the cohesive architectural elements. These include:
Symbolically using a large sheltering roof to collect rainwater and gather the work groups
together.
Integrate outdoor vegetated circulation wherever possible to highlight the unique climate of San
Luis Obispo.
Use stairwells and balconies to increase visual communication between teams and add a sense
of greater spaciousness.
Recognize the potential synergies within the public areas of the WRC specifically in how lobby,
meeting space and Interpretive Center seamlessly flow to create a greater Public Utilities ‘One
Water’ statement.
Anchoring the WRC with the solid work performed in the shops by using heavy materials as
primary construction.
Using local low‐carbon materials wherever possible.
The following elements are represented in the design concept:
Incorporate welcoming demonstration wetland at site entrance.
Provide public site as extension of Bob Jones Trail experience.
Integrate indoor/outdoor ‘Learning Center’ gathering area.
Incorporate meaning of ‘One Water’ through site and building design, while considering
acoustics and views.
Provide a collaborative and healthy workplace.
Use current Prado Road design to influence site ingress and egress.
Provide safe public walking route.
Regulatory testing to drive lab design.
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2. WATER RESOURCE CENTER
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2‐4
Site Data
The property (APN: 053‐051‐045) is designated Public/Government Facilities (PF) use for commercial
land with no identified overlays or sub‐districts per the SLO Zoning Map. This use designation, “…
provides for public, cultural, and quasi‐public uses to meet the needs of city and county residents.” In
addition, the property is also designated as a social services area per Figure 5 of the SLO Land Use
Element. The New Water Resource Center has multiple uses: office, maintenance shop, laboratory and
interpretive center. The requirements are based on zoning are provided in Table 2.
TABLE 2 – PF PUBLIC FACILITIES REQUIREMENTS
Maximum Density (pdf) n/a
Minimum Street Yard As provided in zone of adjacent lot
Minimum Other Yard As provided in zone of adjacent lot
Maximum Building Height Allowed (mixed occupancy) 75’ – 0”
Actual Building Height 35’ – 2 1/2” above grade
Minimum Lot Area 6,000 sf
Minimum Lot Width 60
Minimum Lot Depth 90
Maximum Lot Coverage 60%
Minimum Lot Frontage 40
Table 3 provides the statistics for the Water Resource Center.
TABLE 3 – Project Statistics for the Water Resource Center
Number of Stories 2
Building Setback from Prado Road 165’ – 0” ± minimum
Lot Coverage (Gross Area)
Building
Flatwork
Surface Parking Area
Landscaping
Total
± 25,222 sf
± 10,700 sf
± 32,000 sf
± 45,000 sf
± 114,922 sf
Parking Required Based on type of use
Due to the multi‐use designation, the parking requirements require a collaboration with SLO Utilities
parking needs, the SLO Planning Department and MWA Architects. The conclusion for required parking
spaces is listed in Table 4.
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2. WATER RESOURCE CENTER
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TABLE 4 – PARKING ANALYSIS
Required Vehicle Parking
Treatment Plants and Services Requirements 1 space per 300 sf office, plus (1) space
per 1,000 sf warehouse/service area
Public Area: Interpretative Center/Training
Total Area
Spaces Required
Provided Parking
ADA Accessible Parking
4,276 sf
14.3 spaces
15 Spaces
2 Spaces
Private/Staff Area & Maintenance Shop/ Warehouse
Required
Provided
8,998 sf and 4,430 sf
30 spaces and 4.4 spaces (35 spaces total)
95 spaces
Required Motorcycle and Bicycle Parking
Motorcycle Parking
Space Requirements
Provided Parking
1 per 20 vehicle spaces
5 spaces
Bicycle Parking
Space Requirements
Provided Parking
PF Zone short‐term and long‐term N/A
10 visitor spaces / 15 staff spaces (covered)
An inverted U rack is proposed for the visitor spaces to complement the architecture of the WRC and
the entry landscape architecture.
The views and floor plans of the WRC are provided in View from Prado Road, Birdseye View, Entry View
from Parking Lot, and Floor Plans. The views of the WRC are provided with landscaping to provide focus
on the relationship of the surroundings with the layout and aesthetics of the building. Section 3 – Site
Planning provides the plant palettes, green infrastructure and site materials that are being considered
for the landscape design. The Exterior Materials for the WRC focus on these elements complementing
the WRC. The Planting Schedule and the Landscape Development Plan illustrate the plans for the
overall site. The access roads and parking layouts for the WRRF site, positioned around the WRC, are
provided in the Access Roads / Parking Layouts. LED wall lights will be provided on the exterior of the
WRC; fixtures shall be compliant with Title 24 requirements and CEC Article 410.
Basis of Design
At the time of the Draft Facilities Plan, the staffing for each Public Utilities group on site reflected
current and some future staffing projections. When reconciled with 2016 surveys and interviews, an
increase of employees is reported not including the new Interpretive Center staffing needs. Staff
numbers for this study were collected by MWA Architects via the Management Team and reviewed by
the WRRF Supervisors. The planning horizon assumed is (20) twenty years. Numbers include resident
employees, hoteling stations, interns, vacant positions and future growth positions. See Tables 5 and 6
for staffing numbers and hours of operation.
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2. WATER RESOURCE CENTER
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2‐6
TABLE 5 – PROJECTED STAFFING
Group Planned Staffing for 2035
WRRF Operations / Interns 11 / 4
WRRF Maintenance 6
WRRF Control Systems Administrators 3
Water Quality Lab / Interns 6 / 3
Environmental Compliance / Interns 4 / 1
Wastewater Collections 14
Water Distribution 15
Safety and Technical Training Engineer 1
Total 68
TABLE 6 – STAFFING SHIFT SUMMARY
Group Sunday Monday Tuesday Wednesday Thursday Friday Saturday
WRRF Maint
Shift 1
7am‐4:30pm 7am‐4:30pm 7am‐4:30pm 7am‐4:30pm
WRRF Maint
Shift 2
7am‐4:30pm 7am‐4:30pm 7am‐4:30pm 7am‐4:30pm
WRRF Ops
Shift 1
7am‐
5:30pm
7am‐5:30pm 7am‐5:30pm 7am‐5:30pm
WRRF Ops
Shift 2
7am‐5:30pm 7am‐5:30pm 7am‐5:30pm 7am‐
5:30pm
WRRF Ops
Shift 3
7am‐5:30pm 7am‐5:30pm 7am‐5:30pm 7am‐5:30pm 7am‐4:30pm
(Every other)
WWC System
Crew Shift 1
7am‐
4:30pm
7am‐4:30pm 7am‐4:30pm 7am‐4:30 pm
WWC System
Operators
Shift 2
7am‐4:30 pm 7am‐4:30pm 7am‐4:30pm 7am‐
4:30pm
SCADA/I&C 7am‐
4:30pm
7am‐4:30pm 7am‐4:30pm 7am‐4:30 pm 7am‐4:30pm 7am‐4:30pm 7am‐
4:30pm
WTR
Distribution
7:00 am‐
4:30 pm
(One
Operator on
call off shift)
7:00 am‐
4:30 pm
(One
Operator on
call off shift)
7:00 am‐4:30
pm
(One
Operator on
call off shift)
7:00 am‐
4:30 pm
(One
Operator on
call off shift)
7:00 am‐4:30
pm
(One
Operator on
call off shift)
Lab Analyst
Shift 1
6am‐
4:40pm
6am‐4:40pm 6am‐4:40pm 6am‐4:40pm
Lab Analyst
Shift 2
6am‐4:40pm 6am‐4:40pm 6am‐4:40pm 6am‐
4:40pm
Environ
Compliance
Shift 2
7am‐4:30pm 7am‐4:30pm 7am‐4:30pm 7am‐4:30pm 7am‐3:30pm
(every other)
ATTACHMENT 3
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3‐1
3. Site Planning
Landscape Improvements
The new WRRF landscape design will uphold the City’s objectives and One Water vision by integrating
sustainable practices and features into the fabric of the project site. Vibrant, functional landscapes and
social amenities will engage and help educate the local community about the importance of sustainable
environments. The landscape will be anchored by a native, drought‐tolerant palette interspersed with
regionally‐adapted, non‐native plants that offer strong visual structure and accentuate surrounding
architecture at key focal locations.
Green infrastructure functions will be integrated into the site design through high‐performance
landscape areas that capitalize on opportunities to direct water from roof tops and impervious surfaces
into engineered planters to be captured, cleaned, and infiltrated into native soils. This natural filtration
system also promotes One Water’s objectives for more sustainable, high‐quality groundwater resources.
Improvements at the entry will focus on the public access area at the entrance to the WRRF, near the
Water Resource Center. In keeping with the Facilities Plan, the Water Resource Center will be
surrounded by a wetland‐like landscape with outdoor gathering spaces and pathways to the
demonstration wetland environment, offering an interactive experience for visitors and revealing the
underlying vision of One Water. The demonstration wetlands will be sustained by recycled water
generated from the WRRF. Plant species of the ponded areas will be persistent emergent plants known
to occur in local wetlands and will provide a diversity of habitat.
The plant palette, green infrastructure and site materials that are being considered for the landscape
design are shown in the Landscape Planting Schedule and Exterior Materials. The overall site landscape
plan is provided in the Landscape Development Plan. The Overall Hydrozone Plan illustrates the
irrigation demand. A tree survey was performed by Bunyon Brothers Tree Service in the areas where
project improvements may impact trees and is provided in the Landscape Development Plan. Not all
trees inventoried in these areas are expected to be impacted. The proposed landscape plans show a
planting of 129 new trees, with 148 existing trees surveyed.
Flood and Stormwater Management
Flood hazard areas are established in the current edition of the City of San Luis Obispo’s Flood Insurance
Rating Map. All construction work within designated flood hazards areas shall comply with the flood
plain management regulations contained in San Luis Obispo Municipal Code Section 17.84. “Base flood”
means a flood which has a one percent chance of being equaled or exceeded in any given year (also
called the “one‐hundred‐year flood”). The southern portion of the property on San Luis Obispo Creek is
within the base flood zone; therefore, flood mitigation techniques will be implemented on this Project.
Based on HEC‐RAS modeling conducted by others during the planning phase, the WRRF is located within
the 100‐year flood zone. The 100‐year flood elevation decreases across the site, from north to south
towards the San Luis Obispo Creek. Measures will be implemented to protect critical existing and new
infrastructure from a flood event. New buildings and structures will have finish floor elevations and top
of wall elevations above the flood elevation for a 100‐year flood event; walls or flood gates are being
considered for existing facilities, depending on the unique elements.
Hydraulic conveyance of stormwater will be designed for the 10‐year 24‐hour storm event. The site will
be divided into sub‐basin drainage areas. Flow from individual sub‐basins will be routed to LID features,
such as self‐retaining landscape areas. Self‐retaining landscape areas will be designed based on Central
Coast Regional Water Quality Control Board Post‐Construction Stormwater Requirements –
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3. SITE PLANNING
FINAL ARCHITECTURAL REVIEW SUBMITTAL
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Performance Requirement No. 4 Peak Management, which requires peak flow management of 2
through 10‐year storm events, retention of the 95th percentile rainfall event, and water quality
treatment. The Stormwater Control Plan for Post Construction Requirements and Preliminary Drainage
Report are provided with this submittal. The proposed self‐retaining landscape areas are shown in the
Landscape Development Plan.
Demolition
Site demolition will be necessary to construct the proposed new facilities. The Overall Demolition Plan
identifies the retired facilities that will be demolished. The following specific structures will be
demolished as part of this project:
Primary Clarifier pump station
Biofilters 1, 2 and 3
Blower Structure
Secondary Clarifier mechanism
Cooling Towers
Control Building
California Polytechnic State University Research Area (to be relocated)
Sludge Drying Beds
Supernatant Pond
Storage Sheds
ATTACHMENT 3
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4‐1
4. Process Facilities
Table 7 identifies the process facilities that will be modified or added to the WRRF to achieve the
treatment goals. The Rendered Overall Site Plan identifies the new and modified existing facilities and
locations on the site.
TABLE 7 ‐ PROCESS FACILITIES
Modification of Existing Buildings/Structures New Buildings/Structures
14 ‐ Expansion of Equalization Pond 28 ‐ Primary Effluent Screens
15 ‐ Headworks (modification) 35 ‐ Bioreactor Basins
20 ‐ Primary Clarifiers (modification) 36 ‐ Chemical Storage Facility
30 ‐ Bioreactor Basins (conversion) 40 ‐ Membrane Building
70 ‐ Solids Blend Tank (conversion) 54 ‐ UV Disinfection
80 ‐ Digester No. 1 (conversion) Cooling Towers
85 ‐ Digested Sludge Storage Tank (conversion) 72 ‐ Solids Thickening
86 ‐ Dewatering Facility (modification) 64 ‐ Sidestream Treatment
88 ‐ Odor Control Odor Control
Equalization Pond: The existing flow equalization pond will be expanded to store excess flows
during intermittent wet weather events, with controlled release to limit flows on downstream
processes (headworks, primary treatment and secondary treatment).
Headworks: Existing bar screens and aerated grit removal will remain in service. New flow
measurement will be added for improved flow metering.
Primary Treatment: The two existing clarifiers will remain in service and will be provided with
new mechanisms and pumping systems. Chemical addition will be provided through the
addition of polymer and ferric chloride to improve performance during wet weather conditions.
Chemical Addition to Primary Effluent: Existing calcium hydroxide addition for alkalinity
adjustment will be maintained and new carbon addition for denitrification will be provided.
Primary Effluent Fine Screens: New drum screens will be added to remove fine solids to protect
the membranes. Screenings will be washed and deposited in a dumpster.
Bioreactors and Membrane Bioreactor Facility: Secondary treatment will be achieved by two
new and two modified aeration basins to provide nitrogen, carbon and solids removal. Mixing,
pumping and blower systems will be provided with the basins. Permeate will be extracted using
new membranes. Air scour and chemical cleaning systems will maintain the membrane
permeability.
UV Disinfection: A new low pressure, high output ultraviolet disinfection process will treat
permeate for Creek discharge, Title 22 recycled water, and plant water (3W). Hypochlorite will
be added to the recycled water and plant water to prevent pathogen regrowth.
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4. PROCESS FACILITIES
FINAL ARCHITECTURAL REVIEW SUBMITTAL
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Cooling Towers: New cooling towers will be provided to cool disinfected effluent for
temperature compliance in the San Luis Obispo Creek.
Solids Blending: Primary and secondary treatment sludges removed from the liquid treatment
processes will be blended in the solids blend tank to homogenize and equalize flow prior to
thickening. Primary scum will bypass thickening and go directly to digestion.
Solids Thickening: New screw thickeners with polymer addition will produce thicken primary and
secondary treatment sludges.
Digestion: Mesophilic anaerobic digestion of thickened sludge and primary scum will occur in
two parallel digesters (one new, one modified).
Digested Sludge Storage: One unheated, mixed sludge holding tank will be located after
digestion for storage prior to dewatering.
Dewatering: Screw presses (one new, one existing) will dewater digested sludge. The
dewatering filtrate will be sent to sidestream treatment. The dewatered sludge will be disposed
of offsite.
Sidestream Treatment: Dewatering filtrate will be equalized and treated in a deammonification
process to remove nitrogen, while minimizing the use of energy and supplemental carbon.
Odor Control: Biological treatment will be provided for odorous air collected from the
headworks, primary clarifier effluent launders, primary clarifier effluent screens, solids
thickening, solids dewatering, sidestream equalization, and sidestream treatment.
The new process facilities are primarily on the interior of the site and therefore will be viewed by the
public once present on the property. The new Solids Thickening Facility (72) will be located adjacent to
the Bob Jones Trail and therefore will be visible from the trail. A three‐dimensional rendering has been
provided as part of this submittal for Facility 72 in Thickening – Perspective Rendering. Drawings for
Facility 64 – Sidestream Treatment Facility and Facility 68 – Effluent Cooling are also provided, but the
view is less prominent.
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5‐1
5. Application Checklist Items
Submittal. An electronic version and 7 sets of plans, report and summary were provided at the
request of Planning.
Frontage Improvements. The Prado Road Overpass for Highway 101 is still in design and will
start construction within the construction period of the WRRF Project. As such, the design of the
overpass needs to be defined to understand any Prado Road improvements required. The WRRF
Project is using a significant setback from Prado Road for buildings and aligning with the new
Elks Road routing to minimize future impacts to the WRRF site.
Signage. Signage for the overall property exists at the main entry. Potential new signage must
be coordinated among all entities occupying the property – the WRRF, San Luis Obispo Transit
Bus Yard, and City Corporation Yard. Internal signage for the WRRF property will be selected for
continuity and aesthetics during the next phase of design.
Public Art Proposal. The Public Art Proposal is not a requirement for this Project.
Green Building Checklist. LEED certification is not a requirement for this Project. The Water
Resource Center will comply with the 2016 California Building Code and Title 24 requirements.
Photos. Photos of the existing site are provided in Attachment A to this summary.
Tree Survey. The tree survey is provided in Attachment B to this summary.
ATTACHMENT 3
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ATTACHMENT 3
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Attachment A
San Luis Obispo Water Resource Recovery Facility
Photos of Existing Site
ATTACHMENT 3
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ATTACHMENT 3
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Photo 1 – Main Property Entry at Prado Road
Photo 2 – Water Resource Recovery Facility (WRRF) Entry
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Photo 3 – WRRF Entry Gate
Photo 4 – WRRF Entry
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Photo 5 – Facility 12, Administration Building
Photo 6 – Facility 12, Administration Building
ATTACHMENT 3
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Photo 7 – Facility 14, Equalization Pond
Photo 8 – Facility 15, Headworks
ATTACHMENT 3
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Photo 9 – Facility 15, Headworks – Grit Removal Facility
Photo 10 – Facility 20, Primary Clarifiers
ATTACHMENT 3
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Photo 11 – Facility 30, Aeration Basin
Photo 12 – Facility 43, Secondary Clarifier
ATTACHMENT 3
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Photo 13 – Facility 46, Filters
Photo 14 – Facility 46, Filters
ATTACHMENT 3
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Photo 15 – Facility 52, Cooling Towers
Photo 16 – Facility 52, Cooling Towers
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Photo 17 – Facility 70 – Solids Blend Tank (converted from DAFT)
Photo 18 – Facility 86, Dewatering Facility
ATTACHMENT 3
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Photo 19 – Facility 86, Dewatering Facility
Photo 20 – Facility 86, Dewatering Facility and Drying Beds (to be closed)
ATTACHMENT 3
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Photo 21 – Facility 44, Electrical Building
Photo 22 – General Site
ATTACHMENT 3
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Photo 23 – General Site
Photo 24 – General Site
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Photo 25 – General Site
Photo 26 – General Site
ATTACHMENT 3
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Photo 27 – Landscape, The Orchard
Photo 28 – Landscape
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Photo 29 – Landscape
Photo 30 – Landscape
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Photo 31 – View of Facility 86, Dewatering Facility from the Bob Jones Trail
Photo 32 – View of Facility 86, Dewatering Facility from the Bob Jones Trail
ATTACHMENT 3
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Photo 33 – View of the WRRF from the Bob Jones Trail
Photo 34 – View of the WRRF from the Bob Jones Trail
ATTACHMENT 3
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ATTACHMENT 3
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Attachment B
San Luis Obispo Water Resource Recovery Facility
Tree Survey
ATTACHMENT 3
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ATTACHMENT 3
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Tree Survey
City of San Luis Obispo's Water Resource Recovery
35 Prado Rd.
San Luis Obispo, CA
Prepared for:
City of San Luis Obispo
November 21, 2017
Prepared by:
William Van Horbek
ISA - Board Certified Master Arborist® WE-6407B
TCIA - Certified Treecare Safety Professional® #00783
Bunyon Brothers Tree Service
5345 Davenport Creek Rd.
San Luis Obispo, CA 93401
ATTACHMENT 3
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Background
I was contracted by the city of San Luis Obispo to provide a general tree inventory based on a provided
map and boundaries located at 35 Prado Rd. in San Luis Obispo.
Assignment
* Provide an inventory of the trees located within the boundaries of the provided map at 35 Prado in
San Luis Obispo. The inventory is to include the species, trunk diameter at standard height which is at
54" above grade (DSH), condition rating 1‐5 (1= dead/unstable, 2=poor, 3=Fair, 4=Good, 5=exceptional)
Limits of the assignment
* Trees were numbered but not tagged in the field
* Multi‐stemmed shrubs stem diameters were approximates
* The information in this report is limited to the condition of the trees during my inspection on
November 20, 2017.
Purpose and use of Report
The report is intended to document the current trees within the defined boundaries based on the
provided map. The report is to be used by the project manager, and the City of San Luis Obispo
Observations
The property is located at 35 Prado Rd in San Luis Obispo. The trees were inventoried and given
numbers (numbering system 1‐196). Trees were measured for DSH and ~Crown diameter in feet and
given a condition rating. A tree's condition is a determination of its overall health and structure based on
five aspects: Roots, trunk, scaffold branches, twigs, and foliage. The assessment considered both the
health and structure of the trees for a combined condition rating. The crown, trunk, trunk flare, and
above ground roots were inspected from the ground.
*5= Exceptional : Good health and structure with significant size, location or quality.
*4= Good: No apparent problems, good structure and health, good longevity for the site.
*3= Fair : Minor problems, at least one structural defect or health concern, problems can be
mitigated through cultural practices such as pruning or a plant health care program.
*2= Poor: Major problems with multiple structural defects or declining health , not a good
candidate for retention.
*1= Dead/Unstable: Extreme problems, irreversible decline, failing structure, or dead.
ATTACHMENT 3
ARC1 - 54
The provided map had 6 major areas that needed to be inventoried and the trees were grouped by the
area they were in. The attached map shows the areas, the group number they were given and then lists
the number of trees and tree number in each group.
ATTACHMENT 3
ARC1 - 55
ATTACHMENT 3
ARC1 - 56
City of San Luis Obispo’s Water Resource Recovery
Prado Road
H
wy
10
1
Tree location based on Group #
Group 1: 1‐36
Group 2: 37‐46
Group 3: 47‐73
Group 4: 74‐99
Group 5: 100‐126
Group 6: 127‐196
1
2
3
4
5
6
ATTACHMENT 3
ARC1 - 57
ATTACHMENT 3
ARC1 - 58
Diameter at Crown Condition
Standard Height Diameter Rating
Tree #Specie DSH (in.) (~feet) (1 dead ‐ 5 exceptional)
1 Sumac (multi‐stemmed)28"18'3‐Fair
2 Sumac (multi‐stemmed)40"24'3‐Fair
3 Monterey Pine 7"10'1‐Dead
4 Podocarpus 12"15'4‐Good
5 Sumac (multi‐stemmed)23"12'3‐Fair
6 Redwood 12"10'3‐Fair
7 Podocarpus (multi‐stemmed) 14"8'2‐Poor
8 Podocarpus (multi‐stemmed) 14"12'3‐Fair
9 Podocarpus 9"10'3‐Fair
10 Sumac (multi‐stemmed)42"15'3‐Fair
11 Sumac (multi‐stemmed)34"18'3‐Fair
12 Coast Live Oak 2"5'4‐Good
13 California Bay (multi‐stemmed) 45"15'3‐Fair
14 California Bay (multi‐stemmed)18"12'4‐Good
15 Monterey Pine 7.5"12'3‐Fair
16 Pittosporum (multi‐stemmed) 8"10'3‐Fair
17 California Bay (multi‐stemmed) 28"12'3‐Fair
18 Willow (multi‐stemmed)15"10'3‐Fair
19 Pittosporum (multi‐stemmed) 26"15'3‐Fair
20 Carob 8"8'2‐Poor
21 Pittosporum (multi‐stemmed) 13"10'3‐Fair
22 Pittosporum (multi‐stemmed) 7"6'3‐Fair
23 Pittosporum (multi‐stemmed) 7"8'3‐Fair
24 Monterey Cypress 12.5"15'2‐Poor
25 Ornamental Tree 5.5"8'3‐Fair
26 Redwood 5"8'2‐Poor
27 Redwood 3.5"6'2‐Poor
28 Privet (multi‐stemmed)10"5'3‐Fair
29 Escalonia 28"6'3‐Fair
30 Escalonia 28"6'3‐Fair
31 Wax Myrtle (multi‐stemmed)9"6'2‐Poor
32 Wax Myrtle (multi‐stemmed)7"6'2‐Poor
33 Carob (multi‐stemmed)22"18'4‐Good
34 Carob (multi‐stemmed)36"15'3‐Fair
35 Carob (multi‐stemmed)22"14'3‐Fair
36 Escalonia 24"12'3‐Fair
San Luis Obispo Water Resource Recovery Facility
Group 1
ATTACHMENT 3
ARC1 - 59
Diameter at Crown Condition
Standard Height Diameter Rating
Tree #Specie DSH (in.) (~feet) (1 dead ‐ 5 exceptional)
San Luis Obispo Water Resource Recovery Facility
37 Manzanita 6"4'4‐Good
38 Coffeeberry 9"8'4‐Good
39 Ceanothus 14"12'3‐Fair
40 Pyrcantha 7"6'3‐Fair
41 Privet (multi‐stemmed)12"6'2‐Poor
42 Toyon 17"12'4‐Good
43 Ceanothus 9"8'1‐Dead
44 Ceanothus 12"15'4‐Good
45 Ceanothus 8"10'1‐Dead
46 Privet 23"14'3‐Fair
47 Avocado 5"9'3‐Fair
48 Avocado 6"6'2‐Poor
49 Incense Cedar 6"6'3‐Fair
50 Coast Live Oak (multi‐stemmed) 37.5"30'3‐Fair
51 Indian Hawthorn 4"4'3‐Fair
52 Orange 3"5'3‐Fair
53 Wax Myrtle (multi‐stemmed) 12"8'2‐Poor
54 Olive (multi‐stemmed)12"8'3‐Fair
55 Grapefruit 3"4'3‐Fair
56 Grapefruit 5"6'4‐Good
57 Tangerine 4"5'3‐Fair
58 Coast Live Oak 12.75"19'3‐Fair
59 Monterey Pine 24"18'2‐Poor
60 Citrus 1"3'2‐Poor
61 Coast Live Oak 2"3.5'3‐Fair
62 Olive (multi‐stemmed)8"8'3‐Fair
63 Monterey Pine 27"25'2‐Poor
64 Blackwood Acacia 21"23'1‐Unstable
65 Oleander (multi‐stemmed)9"6'3‐Fair
66 Oleander (multi‐stemmed)12"6'3‐Fair
67 Oleander (multi‐stemmed)23"10'3‐Fair
68 Wax Myrtle 4"7'2‐Poor
69 Carob 7"8'3‐Fair
70 Oleander (multi‐stemmed)17"10'3‐Fair
71 Catalina Cherry (multi‐stemmed) 14"15'3‐Fair
72 Catalina Cherry (multi‐stemmed) 23"18'3‐Fair
73 Catalina Cherry (multi‐stemmed) 18"12'3‐Fair
Group 2
Group 3
ATTACHMENT 3
ARC1 - 60
Diameter at Crown Condition
Standard Height Diameter Rating
Tree #Specie DSH (in.) (~feet) (1 dead ‐ 5 exceptional)
San Luis Obispo Water Resource Recovery Facility
74 Privet (multi‐stemmed)26"16'3‐Fair
75 Escalonia (multi‐stemmed)18"6'1‐Dead
76 Escalonia (multi‐stemmed)8"4'1‐Dead
77 Privet (multi‐stemmed)12"8'3‐Fair
78 Privet 14"10'3‐Fair
79 Escalonia (multi‐stemmed)12"7'1‐Dead
80 Atlas Cedar 2"2'2‐Poor
81 Escalonia (multi‐stemmed)25"14'2‐Poor
82 Privet 8.5"14'3‐Fair
83 Canary Island Date Palm 16"10'3‐Fair
84 Toyon 15"10'2‐Poor
85 Privet 4"5'3‐Fair
86 Coast Live Oak 4"4'3‐Fair
87 Pittosporum (multi‐stemmed) 40"16'3‐Fair
88 Canary Island Date Palm 18"16'4‐Good
89 Canary Island Date Palm 32"20'4‐Good
90 Cypress 19"12'2‐Poor
91 Cypress 6"10'2‐Poor
92 Monterey Cypress 10"14'3‐Fair
93 Escalonia (multi‐stemmed)40"30'3‐Fair
94 Bottlebrush (multi‐stemmed) 16"8'3‐Fair
95 Bottlebrush (multi‐stemmed) 16"12'4‐Good
96 Cypress 8.5"10'3‐Fair
97 Cypress 8"10'3‐Fair
98 Cypress 48"14'3‐Fair
99 Cypress 24"10'2‐Poor
100 Canary Island Date Palm 6"12'3‐Fair
101 Canary Island Date Palm 10"12'3‐Fair
102 Canary Island Date Palm 10"10'3‐Fair
103 Canary Island Date Palm 20"16'3‐Fair
104 Canary Island Date Palm 12"12'4‐Good
105 Canary Island Date Palm 14"14'3‐Fair
106 Canary Island Date Palm 16"14'3‐Fair
107 Canary Island Date Palm 10"10'3‐Fair
108 Myoporum (multi‐stemmed) 42"24'2‐Poor
109 Juniper 6"8'3‐Fair
110 Canary Island Date Palm 3"5'3‐Fair
111 Euonymus 18"10'3‐Fair
112 Canary Island Date Palm 42"16'3‐Fair
113 Pine 3"5'1‐Dead
Group 4
Group 5
ATTACHMENT 3
ARC1 - 61
Diameter at Crown Condition
Standard Height Diameter Rating
Tree #Specie DSH (in.) (~feet) (1 dead ‐ 5 exceptional)
San Luis Obispo Water Resource Recovery Facility
114 Euonymus 18"15'3‐Fair
115 Juniper 8"8'3‐Fair
116 Catalina Cherry 3"6'4‐Good
117 Cypress 8"18'2‐Poor
118 Euonymus 6"8'3‐Fair
119 Canary Island Date Palm 6"12'3‐Fair
120 Cypress 3"2'1‐Dead
121 Euonymus 14"16'3‐Fair
122 Ornamental Shrub 20"12'2‐Poor
123 Nandina Group 20"5'2‐Poor
124 Toyon 5"4'3‐Fair
125 Bottlebrush (multi‐stemmed)8"6'3‐Fair
126 Bottlebrush (multi‐stemmed) 14"12'4‐Good
127 Catalina Cherry 11"15'3‐Fair
128 Redwood (multi‐stemmed)12"8'2‐Poor
129 Deodar Cedar 8"8'3‐Fair
130 Redwood 4"3'1‐Dead
131 Redwood 15"12'3‐Fair
132 Redwood 11.5"12'3‐Fair
133 Redwood 16"15'3‐Fair
134 Bird of Paradise 24"7'3‐Fair
135 Bird of Paradise 12"5'3‐Fair
136 Redwood 20.5"17'3‐Fair
137 Oleander 24"20'4‐Good
138 Blackwood Acacia (multi‐stemmed) 22"20'3‐Fair
139 Eucalyptus 3"4'2‐Poor
140 Oleander 10"12'3‐Fair
141 Olive (multi‐stemmed)22"24'3‐Fair
142 Catalina Cherry (multi‐stemmed) 18"26'3‐Fair
143 Catalina Cherry 10"12'3‐Fair
144 Catalina Cherry 6"8'3‐Fair
145 Catalina Cherry 12"14'3‐Fair
146 Catalina Cherry 13"16'3‐Fair
147 Catalina Cherry 4"6'3‐Fair
148 Olive 8"10'1‐Dead
149 Catalina Cherry 11"8'3‐Fair
150 Sycamore 12"16'3‐Fair
151 Sycamore 16"18'3‐Fair
152 Sycamore 10"16'3‐Fair
153 Sycamore 12"15'3‐Fair
154 Sycamore 18"15'3‐Fair
155 Sycamore 22"15'3‐Fair
Group 6
ATTACHMENT 3
ARC1 - 62
Diameter at Crown Condition
Standard Height Diameter Rating
Tree #Specie DSH (in.) (~feet) (1 dead ‐ 5 exceptional)
San Luis Obispo Water Resource Recovery Facility
156 Sycamore 12"15'3‐Fair
157 Sycamore 24"14'3‐Fair
158 Sycamore 16"15'3‐Fair
159 Sycamore 12"15'3‐Fair
160 Sycamore 10"12'3‐Fair
161 Pear 13'12'1‐Dead
162 Castor Bean 18'18'3‐Fair
163 Blackwood Acacia 12"18'2‐Poor
164 Catalina Cherry 4"6'3‐Fair
165 Catalina Cherry (multi‐stemmed) 24"20'3‐Fair
166 Jacaranda 32"24'3‐Fair
167 Ca. Pepper 38"30'3‐Fair
168 Strawberry Tree 10"15'3‐Fair
169 Chinese Pistache 7"8'3‐Fair
170 Strawberry Tree 12"16'3‐Fair
171 Chinese Pistache 6"8'3‐Fair
172 Strawberry Tree 12"18'3‐Fair
173 Strawberry Tree 10"12'3‐Fair
174 Chinese Pistache 7"15'3‐Fair
175 Chinese Pistache (multi‐stemmed) 16"15'3‐Fair
176 Chinese Pistache 7"10'3‐Fair
177 Southern Magnolia 9"12'3‐Fair
178 Strawberry Tree 10.5"12'3‐Fair
179 Chinese Elm 12.5"16'3‐Fair
180 Cherry (multi‐stemmed)12.5"8'3‐Fair
181 Italian Cypress (3)30"18'3‐Fair
182 Bird of Paradise (multiple)26"14'3‐Fair
183 Avocado 6"10'3‐Fair
184 Cherry (2)6"8'3‐Fair
185 Photinia (multiple)12"7'3‐Fair
186 Cherry 13"10'3‐Fair
187 Pear 18"12'3‐Fair
188 Orange 3"6'3‐Fair
189 Cherry 21"13'3‐Fair
190 Chinese Elm 21"20'2‐Poor
191 Corkscrew Willow (multi‐stemmed) 16"10'3‐Fair
192 Mulberry 10"28'3‐Fair
193 Redwood 18.5"15'3‐Fair
194 Redwood 20"15'3‐Fair
195 Southern Magnolia 6"8'3‐Fair
196 Stone Pine 30"40'3‐Fair
ATTACHMENT 3
ARC1 - 63
ATTACHMENT 4ARC1 - 64
JANUARY 201801ATTACHMENT 4Sheet 1ARC1 - 65
JANUARY 201802ATTACHMENT 4Sheet 2ARC1 - 66
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JANUARY 2018ATTACHMENT 4Sheet 8ARC1 - 72
FILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGNDRREVISIONCHKAPVDBYAPVDSHEETDWGACH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876WATER RESOURCE RECOVERYAPPVD BY--------FACILITY PROJECTARCHITECTURAL REVIEW SUBMITTALCIVILGRADING & DRAINAGE PLANAREA 1J TOMACJ TOMACK KAUO05-CG-100105-CG-1001_668876.dwgMATCH LINE, SEE DWG 05-CG-1004MATCH LINE, SEE DWG 05-CG-1002N 0204060SCALE: 1"=20'KEY PLANNTSARCHITECTURAL REVIEW SUBMITTALJANUARY 2018ATTACHMENT 4Sheet 9ARC1 - 73
FILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGNDRREVISIONCHKAPVDBYAPVDSHEETDWGACH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876WATER RESOURCE RECOVERYAPPVD BY--------FACILITY PROJECTARCHITECTURAL REVIEW SUBMITTALCIVILGRADING & DRAINAGE PLANAREA 2J TOMACJ TOMACJ TOMAC05-CG-100205-CG-1002_668876.dwgMATCH LINE, SEE DWG 05-CG-1005MATCH LINE, SEE DWG 05-CG-1001N 0204060SCALE: 1"=20'KEY PLANNTSNOTES:1) SEE 14-C-1001 FOR ADDITIONALGRADING AT EQUALIZATION POND.NOTE 1JANUARY 2018ATTACHMENT 4Sheet 10ARC1 - 74
FILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGNDRREVISIONCHKAPVDBYAPVDSHEETDWGACH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876WATER RESOURCE RECOVERYAPPVD BY--------FACILITY PROJECTARCHITECTURAL REVIEW SUBMITTALCIVILGRADING & DRAINAGE PLANAREA 3J TOMACJ TOMACK KAUO05-CG-100305-CG-1003_668876.dwgMATCH LINE, SEE DWG 05-CG-1008MATCH LINE, SEE DWG 05-CG-1004N 0204060SCALE: 1"=20'KEY PLANNTSJANUARY 2018ATTACHMENT 4Sheet 11ARC1 - 75
FILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGNDRREVISIONCHKAPVDBYAPVDSHEETDWGACH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876WATER RESOURCE RECOVERYAPPVD BY--------FACILITY PROJECTARCHITECTURAL REVIEW SUBMITTALCIVILGRADING & DRAINAGE PLANAREA 4J TOMACJ TOMACK KAUO05-CG-100405-CG-1004_668876.dwgMATCH LINE, SEE DWG 05-CG-1008MATCH LINE, SEE DWG 05-CG-1005N 0204060SCALE: 1"=20'MATCH LINE, SEE DWG 05-CG-1002MATCH LINE, SEE DWG 05-CG-1003KEY PLANNTSJANUARY 2018ATTACHMENT 4Sheet 12ARC1 - 76
FILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGNDRREVISIONCHKAPVDBYAPVDSHEETDWGACH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876WATER RESOURCE RECOVERYAPPVD BY--------FACILITY PROJECTARCHITECTURAL REVIEW SUBMITTALCIVILGRADING & DRAINAGE PLANAREA 5J TOMACJ TOMACK KAUO05-CG-100505-CG-1005_668876.dwgMATCH LINE, SEE DWG 05-CG-1009MATCH LINE, SEE DWG 05-CG-1006N 0204060SCALE: 1"=20'MATCH LINE, SEE DWG 05-CG-1002MATCH LINE, SEE DWG 05-CG-1003KEY PLANNTSNOTES:1) SEE 14-C-1001 FOR ADDITIONALGRADING AT EQUALIZATION POND.NOTE 1JANUARY 2018ATTACHMENT 4Sheet 13ARC1 - 77
FILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGNDRREVISIONCHKAPVDBYAPVDSHEETDWGACH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876WATER RESOURCE RECOVERYAPPVD BY--------FACILITY PROJECTARCHITECTURAL REVIEW SUBMITTALCIVILGRADING & DRAINAGE PLANAREA 6J TOMACJ TOMACK KAUO05-CG-100605-CG-1006_668876.dwgN 0204060SCALE: 1"=20'MATCH LINE, SEE DWG 05-CG-1005KEY PLANNTSJANUARY 2018ATTACHMENT 4Sheet 14ARC1 - 78
FILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGNDRREVISIONCHKAPVDBYAPVDSHEETDWGACH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876WATER RESOURCE RECOVERYAPPVD BY--------FACILITY PROJECTARCHITECTURAL REVIEW SUBMITTALCIVILGRADING & DRAINAGE PLANAREA 7J TOMACJ TOMACK KAUO05-CG-100705-CG-1007_668876.dwgMATCH LINE, SEE DWG 05-CG-1007MATCH LINE, SEE DWG 05-CG-1008N 0204060SCALE: 1"=20'MATCH LINE, SEE DWG 05-CG-1003KEY PLANNTSJANUARY 2018ATTACHMENT 4Sheet 15ARC1 - 79
FILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGNDRREVISIONCHKAPVDBYAPVDSHEETDWGACH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876WATER RESOURCE RECOVERYAPPVD BY--------FACILITY PROJECTARCHITECTURAL REVIEW SUBMITTALCIVILGRADING & DRAINAGE PLANAREA 8J TOMACJ TOMACK KAUO05-CG-100805-CG-1008_668876.dwgMATCH LINE, SEE DWG 05-CG-1011MATCH LINE, SEE DWG 05-CG-1009N 0204060SCALE: 1"=20'MATCH LINE, SEE DWG 05-CG-1004MATCH LINE, SEE DWG 05-CG-1007KEY PLANNTSJANUARY 2018ATTACHMENT 4Sheet 16ARC1 - 80
FILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGNDRREVISIONCHKAPVDBYAPVDSHEETDWGACH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876WATER RESOURCE RECOVERYAPPVD BY--------FACILITY PROJECTARCHITECTURAL REVIEW SUBMITTALCIVILGRADING & DRAINAGE PLANAREA 9J TOMACJ TOMACK KAUO05-CG-100905-CG-1009_668876.dwgN 0204060SCALE: 1"=20'MATCH LINE, SEE DWG 05-CG-1005MATCH LINE, SEE DWG 05-CG-1008KEY PLANNTSJANUARY 2018ATTACHMENT 4Sheet 17ARC1 - 81
FILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGNDRREVISIONCHKAPVDBYAPVDSHEETDWGACH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876WATER RESOURCE RECOVERYAPPVD BY--------FACILITY PROJECTARCHITECTURAL REVIEW SUBMITTALCIVILGRADING & DRAINAGE PLANAREA 10J TOMACJ TOMACK KAUO05-CG-101005-CG-1010_668876.dwgN 0204060SCALE: 1"=20'MATCH LINE, SEE DWG 05-CG-1007MATCH LINE, SEE DWG 05-CG-1011MATCH LINE, SEE DWG 05-CG-1012KEY PLANNTSJANUARY 2018ATTACHMENT 4Sheet 18ARC1 - 82
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FILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGNDRREVISIONCHKAPVDBYAPVDSHEETDWGALANDSCAPELANDSCAPE DEVELOPMENT PLANM MILLSJ DESBROWMMArch Review_ANSI_D_668876.dgnCH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876APPVD BYWATER RESOURCE RECOVERYFACILITY PROJECTARCHITECTURAL REVIEW SUBMITTALPRELIMINARYNOT FOR CONSTRUCTIONJANUARY 201826ATTACHMENT 4Sheet 26ARC1 - 90
CITY OF SAN LUIS OBISPO WATER RESOURCE RECOVERY FACILITY PROJECT - EXTERIOR MATERIALSCircular AmphitheaterDark concrete seat walls topped with sustainable hardwood.Entry and Courtyard PaversLight and dark pavers of sustainable materials.Biofiltration CellsAlong building outfall to cut paver runnelSection A-A'AA'BB'Section B-B'Wetland CellsSubmerged retaining walls create edges to control soils and plant growth, separate people from water.Tiered Planted Cells with WeirsA series of cells with weirs circulate water to constructed wetlandDiscovered WatercourseStream flowing over river rock into constructed wetland.Riparian Plant CommunityBuffers amphitheater from roadway and trail.Emergent Zone Plant Community1'-2' depth along natural edges transitioning to upland areas.Interior CourtyardDecorative fence, planters, and benches separate the public from the staff courtyard.Exterior MaterialsJANUARY 2018ATTACHMENT 4Sheet 27ARC1 - 91
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LOBBY031DW1W1W1W1W1W1W1W1W1W1W1W1W1W1W1W1W1W1DDDW1W1W1W11. SEE GENERAL NOTES AND SYMBOLS ON SHEET10-E-0900.GENERAL NOTESAREA AAREA BAREA CFILENAME:PLOT DATE:PLOT TIME:CH2M HILL 2015. ALL RIGHTS RESERVED.THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OFREUSE OF DOCUMENTS:123456BCDVERIFY SCALEBAR IS ONE INCH ONORIGINAL DRAWING.1"0cPROJDATEDATENO.DSGN DRREVISIONCHKAPVDBYAPVDSHEETDWGACH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2M HILL.668876$5&+,7(&785$/5(9,(:68%0,77$/APPVD BY--------WATER RESOURCE RECOVERYFACILITY PROJECTG OTTOBM APFELWATER RESOURCE CENTERELECTRICAL DRAWINGSEXTERIOR LIGHTING PLAN10-E-110110-E-1101.DWGEXTERIOR LIGHTING PLANSCALE: 1/16"=1'-0"KEY PLAN - OVERALLN35(/,0,1$5<127)25&216758&7,21JANUARY 2018ATTACHMENT 4Sheet 34ARC1 - 98
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37JANUARY 2018ATTACHMENT 4Sheet 37ARC1 - 101
JANUARY 201838ATTACHMENT 4Sheet 38ARC1 - 102
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40ARCHITECTURAL REVIEW SUBMITTALATTACHMENT 4Sheet 40ARC1 - 104
July 13, 2017 (Sent via Email)
City of San Luis Obispo
Public Utilities Department
879 Morro Street
San Luis Obispo, CA 93401
Subject: ARCH-0653-2017 (35 Prado [25, 29, 41, 43, & 45 Prado]): Conceptual architectural
review of the City of San Luis Obispo’s Water Resource Recovery Facility (WRRF)
Upgrade Project.
Dear David Hix:
On July 10, 2017, the Architectural Review Commission (ARC) met to review the conceptual
design of the upgrade to the existing Water Resource Recovery Facility (WRRF) project located
at 35 Prado. The ARC has provided a list of directional items below that are to be included in the
final plan submittal.
General Design/Site Design
1. The final design submittal should show elevations of buildings that can be seen from the
public right of way (Prado Road and the Bob Jones Trail). Elevations of these structures
should show all four sides, even if they cannot be seen from the public right of way.
2. Provide significant landscaping along secure edges.
3. Include photos that show what currently exists on the site.
4. Consider making the plaza bigger and including more areas for people (children) to sit.
Stadium/stacked seating may be something to consider.
Architectural Design
5. Harmonize colors and materials within the entire campus.
6. Consider incorporating block as a bulkhead in the WRC structure – creating more of a
human scale to the structure.
7. Pay attention to how things come together – material changes, columns, paneling, etc.
8. Add a subtle accent color to the WRC.
9. Consider adding industrial architectural elements – for example using saw tooth columns.
10. Provide a higher contrast in the color of the roofing material and the metal siding. The two
materials should not be the same.
11. Materials used in the WRC should be durable.
12. Consider incorporating some “one water” elements – gutter system, a water filler or other
elements that incorporate water in the building design (make them visible to the public).
13. Include example wayfinding signs in the final application, as well as show on plans where
signs will be located.
ATTACHMENT 5
ARC1 - 105
ARCH-0653-2017 – ARC Directional Items
July 11, 2017
Page 2
Parking
14. Show on plans that the parking lot for the public can accommodate two buses.
15. Include more short-term bicycle parking and show where the bicycle parking will be
located on the site plan.
16. Verify the bicycle racks proposed for the project comply with the City’s standards.
17. Consider providing long-term, covered bicycle parking for employees on the site.
18. Consider including EV changing stations for visitors and employees within the parking
areas.
Fencing and Walls
19. Provide higher quality fencing around the WRC – in public areas.
20. Consider using a combination of materials such as iron, masonry, pierced metal, mesh,
incorporating public art that depicts “one water,” and consider using plane changes and
variation in segments.
21. Consider Public Art on appropriate fence/walls.
22. Follow the direction provided in the Community Design Guidelines regarding fencing and
walls in industrial project design.
23. If using chain link fencing, consider using vinyl covered chain link fencing.
24. Include landscaping as part of the fence and wall barrier design.
25. Consider using buildings as part of the fencing.
Landscaping and Safety
26. Show on plans the depth of the water.
27. Be sure the path/boardwalk is accessible and ADA compliant.
28. Consider adding bulb out viewing areas.
29. Look at Oso Flaco Lake as an example.
30. Supportive of lots of permeable features to the landscape.
If you have any questions regarding this letter, please contact me at (805) 781-7574.
Sincerely,
Rachel Cohen
Associate Planner
Community Development Department
919 Palm Street, San Luis Obispo, CA 93401-2710
rcohen@slocity.org
ATTACHMENT 5
ARC1 - 106