HomeMy WebLinkAbout2019 Sewer System Management Plan Update
City of San Luis Obispo
2019 Sewer System Management Plan Update
April 2019
City of San Luis Obispo
2019 Sewer System Management Plan
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Table of Contents
Introduction .......................................................................................................................................................... 1
SSMP Organization ..................................................................................................................................................... 1
Wastewater Collection System Background ............................................................................................................ 2
Section I: Goals ................................................................................................................................................................ 6
Sewer System Management Plan Goals ................................................................................................................... 6
Section II: Organization ................................................................................................................................................................ 7
Organization ................................................................................................................................................................ 7
Section III: Legal Authority ................................................................................................................................... 11
San Luis Obispo Municipal Code & General Plan............................................................................................... 11
Agreements with Satellite Agencies ........................................................................................................................ 11
Section IV. Operation & Maintenance .................................................................................................................. 13
Collection System Mapping & Database ............................................................................................................... 13
Computerized Control and Monitoring ................................................................................................................. 14
Preventive Maintenance and Area Maintenance Programs ................................................................................ 15
Visual/CCTV Inspections ....................................................................................................................................... 16
Lift Station Maintenance .......................................................................................................................................... 17
Repairs ........................................................................................................................................................................ 19
Staff Safety & Professional Development ............................................................................................................. 19
Maintenance Equipment & Replacement Inventories ......................................................................................... 22
Section V: Design & Performance Provisions ...................................................................................................... 27
Standards for Installation, Rehabilitation and Repair .......................................................................................... 27
Standards for Inspection and Testing of New and Rehabilitated Facilities ...................................................... 28
Section VI. Overflow Emergency Response Plan ................................................................................................ 29
History of Stoppages and Overflow Events ......................................................................................................... 29
City Sanitary Sewer Overflow Emergency Response Plan .................................................................................. 31
Section VII. Fats, Oils, & Grease Control Program ............................................................................................ 36
Program Background ................................................................................................................................................ 36
Guidelines for the Control of Fats, Oil & Grease ................................................................................................ 37
FOG Program Education ........................................................................................................................................ 38
Section VIII: System Evaluation & Capacity Assurance Plan ............................................................................. 39
Capacity Assessment & Enhancement .................................................................................................................. 39
Capital Improvement Program ............................................................................................................................... 40
Private Sewer Laterals ............................................................................................................................................... 41
Section IX. Monitoring, Measurement, & Program Modifications..................................................................... 42
Performance Measures ............................................................................................................................................. 42
Historical and Baseline Performance ..................................................................................................................... 42
Performance Monitoring and Program Changes .................................................................................................. 42
SSMP Updates ........................................................................................................................................................... 42
Section X: Program Audits ......................................................................................................................................................... 44
Section XI. Communication Program ................................................................................................................... 48
Communication with the Public ............................................................................................................................. 48
City of San Luis Obispo
2019 Sewer System Management Plan
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Appendices
Appendix A: Sample CCTV Inspection Report ................................................................................................ 50
Appendix B: California Water Environment Association Collection System Maintenance and
Environmental Compliance Inspector Certification Requirements .................................................................... 51
Appendix C: Sanitary Sewer Overflow (SSO) Reporting Guidelines .............................................................. 52
Appendix D: Sample Sewer Spill Report ........................................................................................................... 55
Appendix E: Spill Reporting Guidelines (>50,000 gal) .................................................................................................... 58
Appendix F: Wastewater Collection CIP Projects ........................................... Error! Bookmark not defined.
List of Tables
Table 1: Collection System Components ................................................................................................................ 2
Table 2: Lift Station Summary ................................................................................................................................. 5
Table 3: SSMP Implementation Responsibilities ................................................................................................... 8
Table 4: Legal Authority from San Luis Obispo Municipal Code & General Plan ........................................... 12
Table 5: Collection System Database .................................................................................................................... 14
Table 6: Annual Maintenance Summary ............................................................................................................... 15
Table 7: Predictive Maintenance Frequency ......................................................................................................... 15
Table 8: Problem Coding for CCTV Inspections ................................................................................................ 18
Table 9: Wastewater Collection System Repairs ................................................................................................... 20
Table 10: Staff Certifications .................................................................................................................................. 20
Table 11: Wastewater Collection Safety Training ................................................................................................. 21
Table 12: Wastewater Collection Equipment ....................................................................................................... 22
Table 13: Replacement Parts Inventory ................................................................................................................ 23
Table 14: Annual Stoppages and Sanitary Sewer Overflows, 1999-2018 .......................................................... 30
Table 15: Regulatory Agency Contacts .................................................................................................................. 34
Table 16: Sewer Line Installations, 1999-2018 ..................................................................................................... 40
Table 17: Service Lateral Reimbursements ........................................................................................................... 41
Table 18: Historic Data on Sanitary Sewer Overflows ........................................................................................ 43
Table 19: SSMP Audit Checklist ............................................................................................................................ 45
List of Figures
Figure 1: Lift Station Flow Basins ................................................................................................................................. 3
Figure 2: Sewer Predictive Maintenance Frequency ................................................................................................... 4
Figure 3: Organizational Chart .................................................................................................................................... 10
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Preface – City Sewer History
In 1888, there were no sewers in San Luis Obispo. Minor, scanty trenches took human and other waste from town to
San Luis Obispo Creek, carrying muck and disease through the waters where children played and dumping it into the
ocean. During that year, many children became ill. According to an April 24 newspaper article, “Nearly every family
residing in the west portion of the city near the San Luis Obispo Creek have two to three sick children to look after.
The sewer (the creek) is suspect, yet the majority of residents still oppose construction of proper sewers.”
City leaders took a first step in February 1890 by installing the first sewer pipe along Chorro Street to the corner of
Palm Street. The pipe, however, still emptied into San Luis Obispo Creek. “There is no doubt but that the creek is a
natural sewer and should be used as such, but before being used for that purpose, a little work should be done as not
to allow the filth of the upper end of the City to be deposited at the lower end,” according to newspaper reports.
The problem of disease continued in April 1890 when diphtheria ravaged the community. Open trenches were still used
to rid households of waste. All household trenches connected to creeks or adjoining tributaries, providing “a fine
arrangement for breeding microbes, bacteria and kindred horrors which eventually found entrance into houses through
traps and sinks,” the newspaper reported. For that reason, rain became a sacred event by flushing the creeks clean.
City leaders and residents were torn; they knew the meager system needed improvement, but couldn’t agree on a plan.
Ideas weren’t scarce, however. One group of citizens wanted to install three additional sewer lines through town that
terminated outside of city limits at a “dumping ground.” Engineers had concluded one acre of land could handle waste
from 1,000 people. San Luis Obispo, however, proposed to play it safe and utilize five acres.
A second proposal by Col. Waring of San Luis Obispo included detailed drawings showing a system of mains and
conduits that led to a “sewage farm” to be located adjacent to the cemetery on South Higuera Street. This system would
have included a 15-inch main pipe to a 1,000-gallon tank. That tank would then overflow into a 10,000-gallon tank, with
the contents later used for crop fertilization.
A prominent San Francisco engineer proposed a third plan that would again use “dumping grounds” south of the City,
but the cost of building the system was too expensive at the time.
By the end of the 1890, Col. Waring’s wastewater collection system design was approved and used to rid downtown San
Luis Obispo of sewage. Again, all of the effluent from his project still flowed into San Luis Obispo Creek.
But in September 1895, a local resident sued the City, claiming the creek should only be used as the city sewer during
the wet season, June 1 to Dec. 1. “The gravity of such a condition of affairs must at once be apparent to every citizen,”
the newspaper reported. “To make provision for this conation of affairs… we immediately began to seek for a means
of disposing of the sewage of the city.”
After contacting landowner after landowner, the City purchased 10 acres at “the Schow Place” along San Luis Obispo
Creek for $2,000 to be used as space for a sewer farm. It was used during the summer months when fertilized disposal
fields were dry enough to absorb the sewage. Suitable shallow ditches that wound back and forth were dug long enough
to receive all of the water flowing from the sewer in three days. The existing Water Reclamation Facility stands on the
property today.
During the remainder of the year, however, San Luis Obispo Creek was still the City’s sewer. And the rain flushed it
clean.
-Researched & Compiled in 2007 by Jim Autry, Water Reclamation Facility Manager (retired)
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City of San Luis Obispo
Sewer System Management Plan
Introduction
Sanitary sewer overflows are identified as a major threat to public health and water quality because of the
pathogens, toxic pollutants and nutrients they contain and have become a focus of State water quality
regulators over the past several years. On May 2, 2006, the State adopted General Waste Discharge Requirements
for sanitary sewer systems to provide a consistent, statewide regulatory approach to address these overflows
(State Water Resources Control Board, Order No. 2006-003). Public agencies, like the City of San Luis
Obispo, that own or operate a sanitary sewer system comprised of one mile or more of pipeline to transport
sewage to a treatment facility must file a Notice of Intent to comply with the State Order. The requirements
include two major components:
1) Reporting all sanitary sewer overflows in the statewide spill reporting database, and
2) Developing a Sewer System Management Plan with the intent to reduce the potential for
or eliminate sanitary sewer overflows.
In July 2006, the City submitted a Notice of Intent to the State Water Resources Control Board to comply
with the State requirements related to reporting sanitary sewer overflows. The City began using the statewide
spill-reporting database (California Integrated Water Quality System or CIWQS) in May 2007. In October
2007, the City Council approved the development plan and schedule for the preparation of the Sewer System
Management Plan. The preparation, adoption and implementation of the City’s Sewer System Management
Plan (SSMP) in 2009 fulfilled the remaining requirement of the State Order.
SSMP Organization
The organization of this SSMP (section numbering and nomenclature) follows the General Waste Discharge
Requirements (GWDR) for Wastewater Collection Agencies, State Water Resources Control Board Order
Number 2006-0003 dated May 2, 2006. Each section includes the requirement as the introduction for
reference. As an introduction to the SSMP, this section provides background on the City’s wastewater
collection system. Following this introduction, the SSMP includes eleven required sections including:
• Goals
• Organization
• Legal Authority
• Operation and Maintenance
• Design and Construction Standards
• Overflow and Emergency Response
• Fats, Oils and Grease Control
• System Evaluation and Capacity Management
• Monitoring, Measurement, Program Modification,
• Program Audits
• Communication
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2019 Sewer System Management Plan Update
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Wastewater Collection System Background
Located on State Highway 101, about mid-way between San Francisco and Los Angeles, the City of San Luis
Obispo has a 2018 population of 46,548 and covers about 10.7 square miles. The first sanitary sewers were
built in San Luis Obispo in the late 1800s. Today, the collection system includes 138 miles (733,044 feet) of
gravity sewer line ranging from six-inch to 48-inch pipe. The system includes 2.4 miles of force main ranging
from four- to 16-inch pipe. Approximately 3,080 manholes provide access to the collection system (see Table
1, Collection System Components). The sewer lines are made of a variety of materials, including high-density
polyethylene (HDPE), terra cotta salt glazed pipe, vitrified clay pipe (VCP), polyvinyl chloride (PVC), and
asbestos concrete. Portions of the sewer system are over 100 years old.
The City’s collection system serves residential,
commercial, and industrial customers. Sewer
service is provided only to properties within the
city limits, with the exception of the San Luis
Obispo campus of California Polytechnic State
University (Cal Poly) and the County of San Luis
Obispo Airport. The number of service
connections, or laterals, is estimated to be
approximately 12,000. In San Luis Obispo, the
entire sewer lateral to the service connection in
the street is owned by the property owner.
The collection system is divided into
maintenance areas with eight lift stations as
shown in Figure 1, Lift Stations and Flow Basins,
and Figure 2, Sewer Predictive Maintenance Frequency.
The lift stations are summarized in Table 2.
The City’s Utilities Department Wastewater
Collection staff has developed a detailed
database on the components of the collection
system over the past 30 years. It includes detail
on all gravity lines, force mains, flow basins, lift
stations and their service areas. The database is
utilized and updated daily by Wastewater
Collection staff as part of their work (work order
development/history, standardization of record
keeping, organization, communication with the
public, development/prioritization of future
system upgrades). This database is connected to
the City’s geographic information system. The
condition of approximately 94 miles (66.4%) of
the collection system has been documented by
video inspection, as described in later in this
SSMP.
Table 1: Collection System Components
GRAVITY SEWER LINES
Pipe
Size
Length
(in feet)
Length
(in
miles)
Pipe Type Percent of
System
6 inch 324,468 61.5 VCP/
PVC/HDPE 44.3%
8 inch 267,769 50.7 VCP/
PVC/HDPE 36.5%
10 inch 47,320 9.0 VCP/ PVC 6.5%
12 inch 24,341 4.6 VCP/
PVC/HDPE 3.3%
15 inch 21,859 4.1 VCP/ PVC 3.0%
16 inch 2,569 0.5 VCP/ PVC 0.4%
18 inch 20,339 3.9 VCP/
PVC/HDPE 2.8%
20 inch 267 0.1 HDPE 0.0%
21 inch 3,301 0.6 VCP/ PVC 0.5%
24 inch 6,244 1.2 VCP/ PVC 0.9%
27 inch 2,098 0.4 PVC 0.3%
30 inch 5,687 1.1 PVC 0.8%
36 inch 5,182 1.0 PVC 0.7%
48 inch 1,600 0.3 PVC 0.2%
Total 715,564 138 100%
SEWER FORCE MAINS
Pipe
Size Length (in feet) Pipe Type Lift Station
16 inch 2,232 PVC Laguna
14 inch 3,772 Ductile Iron Pipe Tank Farm
8 inch 3,656 PVC/HDPE Calle
Joaquin
8 inch 839 Ductile Iron Pipe Airport
6 inch 764 Transite,
Asbestos Concrete
Silver City
6 inch 231 HDPE Margarita
4 inch 440 Cast Iron Pipe Foothill
4 inch 595 Ductile Iron Pipe Perfumo
Total 12,528
Source: City of San Luis Obispo Utilities Department, Wastewater Collection, 2019.
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2019 Sewer System Management Plan Update
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Figure 1.
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2019 Sewer System Management Plan Update
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Figure 2.
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2019 Sewer System Management Plan Update
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Table 2: Lift Station Summary
Lift Stations # Pumps / Pump Capacity (gpm) /
Total Dynamic Head (feet) / Horsepower (hp) Notes
Foothill 2 pumps / 300 gpm / 65 feet / 15 hp Installed in 1986. Planned for a future upgrade.
Calle Joaquin 2 pumps / 570 gpm / 53 feet / 15 hp
Installed in 1967; expellers were installed in 2007,
new force main was installed in 2013. Lift station,
freeway crossing, and siphon are planned for a
future upgrade.
Laguna 3 pumps / 1500 gpm / 45 feet / 40 hp
The lift station was replaced in 2013 with a new
wet well and Wemco Hidrostal pumps. It is the
largest of the collection system’s pumping
stations. (Silver City, Calle Joaquin and Prefumo
pump to it and it receives gravity flow from the
City’s Laguna Lake area)
Margarita 2 pumps / 400 gpm / 31 feet / 5 hp
Replaced in 2019 with a new wet well and
Wemco Hidrostal pumps. Includes on-site
backup generator.
Silver City 2 pumps/ 450 gpm / 43 feet / 15/ 18.5 hp
Installed in 1971 within the adjacent trailer park.
Station needs back up controllers or an auxiliary
power system. It will serve future annexation
areas. wPlanned for a future upgrade.
Tank Farm 4 pumps / 2,000 gpm / NA / 13/ 35 hp
Installed in 2009. The lift station is planned to
serve development in the Airport, Orcutt,
Margarita, and Avila Ranch Specific Plan Areas.
Includes on-site backup generator.
Prefumo 2 pumps / 35 gpm / NA/ 3.9 hp
Serves limited population/area. No backup
power available due to limited availability of
service from PG&E.
Airport 2 pumps / 240 gpm / NA / 5 hp
The Airport Lift Station was constructed by the
County. The City took over its maintenance and
operation of the lift station in 2000. Serves the
airport, adjacent development, and planned
annexation areas. Planned for a future upgrade.
Source: City of San Luis Obispo Utilities Department, 2019.
Notes:
1. As of 2016, the City is no longer operating the Madonna Lift Station.
2. The Buckley Lift Station, which is planned to serve the Avila Ranch Specific Plan area, is currently being designed. The station is anticipated
to be on-line in 2020.
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2019 Sewer System Management Plan Update
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Section I: Goals
The General Waste Discharge Requirements for the Goals section of the Sewer System Management Plan state that the City
must develop goals to properly manage, operate, and maintain all parts of its wastewater collection system in order to reduce and
prevent SSOs, as well as to mitigate any SSOs that occur.
Sewer System Management Plan Goals
In order to minimize sanitary sewer overflows (SSOs) and mitigate the effects of SSOs that may occur, t he
goals of the City of San Luis Obispo Sewer System Management Plan are to:
1. Maintain uninterrupted sewage flow without health hazard, effluent leakage, or water
infiltration and inflow.
2. Operate a sanitary sewer system that meets all regulatory requirements.
3. Avoid sanitary sewer overflows and respond to sanitary sewer overflows quickly and mitigate
any impact of the overflow.
4. Maintain standards and specifications for the installation of new wastewater systems.
5. Verify the wastewater collection system has adequate capacity to convey sewage during peak
flows.
6. Provide training for Wastewater Collection staff.
7. Maintain the Fats, Oil, and Grease program (FOG program) to limit fats, oils, grease, and
other debris that may cause blockages in the wastewater collection system.
8. Identify and prioritize structural deficiencies and implement short-term and long-term
maintenance and rehabilitation actions to address each deficiency.
9. Meet all applicable regulatory notification and reporting requirements.
10. Provide excellent customer service through efficient system operation and effective
communication strategies.
Margarita Lift Station, 2019.
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2019 Sewer System Management Plan Update
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Section II: Organization
The General Waste Discharge Requirements for the Organization section state that the City’s Sewer System Management Plan
must identify:
(a) The name of the responsible or authorized representative;
(b) The names and telephone numbers for management, administrative, and maintenance positions responsible for implementing
specific measures in the Sewer System Management Plan program. Include lines of authority as shown in an organization
chart or similar document with a narrative explanation; and
(c) The chain of communication for reporting SSOs, from receipt of a complaint or other information, including the person
responsible for reporting SSOs to the State and Regional Water Board and other agencies if applicable (such as County
Health Officer, County Environmental Health Agency, and/or State Office of Emergency Services (OES))
Organization
Within the City of San Luis Obispo’s Utilities Department, the Wastewater Collection Section oversees
operation and maintenance of the system with a Wastewater Collection Supervisor and eight operators (two
operators are dedicated to storm drain maintenance). The staff is organized into three main crews to conduct
maintenance, inspection, and construction and repair operations. Wastewater Collection staff responds to all
sewage spills seven days a week, 24-hours a day.
The authorized representative, or legally responsible official (LRO), for the implementation and administration of
the City’s SSMP is Jeremy Gearhart, Wastewater Collection Supervisor. Mr. Gearhart is responsible for the
development and oversight of this program and ensuring that the City is in compliance with the GWDR.
Figure 2, Organizational Chart, identifies the line of authority for the implementation of the SSMP.
Two additional City staff, Ben Marquart, Environmental Programs Manager, and David Hix, Deputy Director
Utilities, Wastewater, are identified as alternative LROs for reporting on California Integrated Water Quality
System (CIWQS) to ensure that a staff person is always available to meet the legal reporting requirements.
Appendix C, Sanitary Sewer Overflow Reporting Guidelines includes “Spill Reporting Responsibilities,” the chain of
communication for responding and reporting SSOs. This flow chart is taken from the Utilities Department’s
Sanitary Sewer Overflow Emergency Response Plan described further in Section VI.
Table 3 includes one City staff member not included in the Organizational Chart, the City Engineer from the
Public Works Department (805-781-7191), with responsibilities in the Design and Performance of the
collection system.
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Table 3: SSMP Implementation Responsibilities
SSMP Measure Responsible
Person Role
Goals
Implementation and management of the
SSMP
Jeremy Gearhart
Provides oversight of the SSMP.
Ensure that the collection system is
maintained and operated to reduce or
eliminate SSOs
Oversight of all aspects of the collection system.
Organization
Chain of Communication Jeremy Gearhart Determines the chain of command for responding
to SSOs.
Organization Chart Jeremy Gearhart Keeps organization chart up to date.
SOP for SSO Reporting Guidelines Jeremy Gearhart Keeps reporting guidelines up to date to ensure
compliance with the GWDR.
SSO Reporting (See Figure 2,
Organizational Chart)
WWC Staff Responds to sewage spills seven days a week, 24
hours a day
Jeremy Gearhart
Ensures that reporting guidelines are followed and
updated.
Reports spills on CIWQS, LRO Lead
Ben Marquart LRO Alternative 1 for reporting on CIWQS
David Hix LRO Alternative 2 for reporting on CIWQS
Legal Authority
Ensure the Municipal Code is updated
and provides the authority to prevent
illicit discharges, requires proper design
and construction, and allows for
inspection and maintenance and
enforcement of infractions of the code.
Jeremy Gearhart Review Municipal Code and update as needed.
Ensure the Municipal Code provides the
authority to prevent the discharge of fats,
oils and grease and other debris. Ben Marquart
Reviews the Municipal Code and updates code as
needed.
Enforcement of non-permitted discharges
to the sewer.
Investigates illicit discharges to the collection
system, Issues Notice of violations or takes legal
action violators.
Operations & Maintenance Program
Maintaining collection system maps Jeremy Gearhart
WWC staff
Works with WWC staff and GIS staff to maintain
maps.
Preventative operation and maintenance Jeremy Gearhart Updates the description of the program as needed.
Development of a rehabilitation and
replacement plan
Jeremy Gearhart Continues the current program in place and
improves as needed. Provide training to WWC staff
Provide equipment & replacement part
inventories
Design & Performance Provisions
Design and construction standards for all
aspects of the collection system
Jeremy Gearhart
Matt Horn
Works together to update design and construction
standards.
Inspection and testing standards Jeremy Gearhart
Matt Horn
Continues current inspection and testing practices
and improves as needed.
City of San Luis Obispo
2019 Sewer System Management Plan Update
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SSMP Measure Responsible
Person Role
Overflow and Emergency Response
Procedures for notification, response,
notification of appropriate agencies
Jeremy
Gearhart
The City has spill reporting guidelines in place. These
will be updated to include CIWQS reporting.
The current procedures for responding to a spill,
containment preventing the discharge will be put in
written form.
Training of all staff involved in emergency
response including response procedures,
notification of agencies, and containing and
preventing the discharge of wastewater to a
waterway
Conduct annual refresher training.
Fats, Oils, & Grease Control
Administration and implementation of the
City’s FOG program which includes public
education, inspection of facilities which
produce FOG and working with WWC to
identify areas prone to FOG blockages Ben Marquart
Continue current program and develop a written
program of the current activities.
Legal authority to prohibit discharges and
identify measures to prevent SSOs and
blockages
Updates Municipal Code as needed.
System Evaluation & Capacity Assurance
Evaluation of system to determine areas of
deficiencies
Jeremy
Gearhart
David Hix
The City has a Wastewater Master Plan in place and
will be completing a wastewater infrastructure strategy
in early 2015.
Design criteria Jeremy
Gearhart
Design criterion is identified in the Wastewater
Master Plan.
Capacity enhancement measures. Jeremy
Gearhart
Evaluation of hydraulic capacity is currently done &
an evaluation plan is being developed.
Capital Improvement Program
Jeremy
Gearhart
David Hix
The City currently has a five-year CIP plan in place.
Monitoring, Measurement, & Program Modifications
Maintenance of information, monitoring and
assessing the effectiveness of the program Jeremy
Gearhart
The City currently has a computerized infrastructure
asset management system which is used by the WWC
staff and Supervisor. Updating the program and Identifying
trends
SSMP Audits
Conduct periodic internal audits to
determine the effectiveness of the SSMP and
compliance with the SSMP
Jeremy
Gearhart
Develop an audit check list, conduct internal audit at
least every two years, keep a report of the findings on
file, and initiate any corrective actions needed.
Communication Program
Communication with the public on the
development, implementation, and
performance of its SSMP Jeremy
Gearhart
Solicit public input through the City’s website,
newsletter, public meetings and public contact.
Develop a plan of communication with the
two satellite agencies (Cal Poly State
University and County of San Luis Obispo
Airport)
Will work with Cal Poly and the County Airport to
develop communication plans.
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2019 Sewer System Management Plan Update
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Figure 3: Organizational Chart
Jeremy Gearhart
Wastewater Collection
Supervisor
LRO Lead
805-781-7033
Ben Marquart
Environmental Programs
Manager
LRO Alternative 1
805-781-7425
David Hix
Wastewater Division Manager
LRO Alternative 2
805-781-7039
Daren Kersey
Wastewater Collection Operator
805-431-2207
John Humphrey
Wastewater Collection Operator
805-431-2206
Matt Cyester
Wastewater Collection Operator
805-431-7148
Ryan Beech
Wastewater Collection Operator
805-540-8937
Greg Elianow
Wastewater Collection Operator
805-540-9217
Vacant
Wastewater Collection Operator
Vacant
Wastewater Collection Operator
Andrew Mora
Environmental Compliance
Inspector
805-781-7419
Vacant
Environmental Compliance
Inspector
Vacant
Wastewater Collection Operator
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Section III: Legal Authority
The General Waste Discharge Requirements for the Legal Authority section of the Sewer System Management Plan include that
the wastewater collection system agency must demonstrate, through collection system use ordinances, service agreements, or other
legally binding procedures, that it possesses the necessary legal authority to:
(a) Prevent illicit discharges into its wastewater collection system (examples may include infiltration and inflow (I/I),
storm water, chemical dumping, unauthorized debris and cut roots, etc.);
(b) Require that sewers and connections be properly designed and constructed;
(c) Ensure access for maintenance, inspection, or repairs for portions of the lateral owned or maintained by the City;
(d) Limit the discharge of fats, oils, and grease and other debris that may cause blockages;
(e) Enforce any violation of its sewer ordinances;
(f) Authority to inspect grease producing dischargers; and
(g) Authority to enforce sewer-related ordinances.
San Luis Obispo Municipal Code & General Plan
As the purveyor of sanitary sewer service within the City, the Utilities Department is responsible for the
preparation and implementation of the Sewer System Management Plan. The City possesses legal authority
through its Municipal Code as described in Table 4, Legal Authority from San Luis Obispo Municipal Code.
Title 13, Public Services, Section 13.08, Sewers, of the City’s Municipal Code includes requirements for sewer
connections, discharges, charges and fees, disposal of septic tank cleanings, enforcement, abatement and
penalties. The Municipal Code is available on the Internet at the following link:
https://sanluisobispo.municipal.codes/
Chapter 8 of the City’s General Plan, the Water and Wastewater Element, includes policies and programs related
to the provision of wastewater collection services.
https://www.slocity.org/home/showdocument?id=19965
Agreements with Satellite Agencies
The Cal Poly wastewater collection system discharges to the City’s collection system off of Mustang Drive
southwest of the campus’ stadium via a 15-inch sewer line. The City does not maintain Cal Poly’s collection
system or provide input on the design of campus facilities. The City has a Pretreatment Agreement with the
campus providing the legal authority to enforce Title 13, Public Services, Section 13.08, Sewers, of the City’s
Municipal Code within the campus dated January 6, 2009. The City has a service agreement with Cal Poly for
water and sewer rates dated June 2012. The City and Cal Poly periodically meet and review these agreements
and have committed to an open line of communication for wastewater collection and pretreatment issues.
The City also provides wastewater treatment services and has pretreatment authority to the San Luis Obispo
County Airport located south of the City consistent with a 1977 Sewer and Water Agreement (amended in
April 1988, July 1988, 1993 and 2000). The County Airport discharges to the City’s collection system at the
manhole located upstream of the Airport lift station on Broad Street (SMH M17-8).
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Table 4: Legal Authority from San Luis Obispo Municipal Code & General Plan
Requirement City Municipal Code
Reference
City General Plan
Reference 2
Meets General Waste
Discharge
Requirements?
General
Prevent illicit discharges
into the wastewater
collection system
Municipal Code
13.08.030; 13.08.040;
13.08.430
General Plan
Program B 4.3.7 Yes
Limit the discharge of
fats, oils, and grease and
other debris that may
cause blockages
Municipal Code
13.08.040; 13.08.050;
13.08.080; 13.08.090
General Plan
Program B 4.3.7 Yes
Require that sewers and
connections be properly
designed and constructed
Municipal Code 13.08.380 Yes
Require proper
installation, testing, and
inspection of new and
rehabilitated sewers
Municipal Code 13.08.380 Yes
Laterals
Clearly define City
responsibility and policies
Municipal Code
13.08.010; 13.08.080 Yes
Ensure access for
maintenance, inspection,
or repairs for portions of
the service lateral owned
or maintained by the City
Does not apply;
maintenance of service
lateral is responsibility of
property owner
Yes
Control infiltration and
inflow (I/I) from private
service laterals
Municipal Code
13.08.040; 13.08.390
General Plan
Policy B4.2.2;
Program B4.3.1 and B4.3.2
Yes
FOG Source Control
Requirements to install
grease removal devices
(such as traps or
interceptors), design
standards for the grease
removal devices,
maintenance
requirements, BMP
requirements, record
keeping and reporting
requirements
Municipal Code 13.08.090 Yes
Authority to inspect
grease producing facilities Municipal Code 13.08.140 Yes
Enforcement
Enforce any violation of
its sewer ordinances Municipal Code 13.08.140 Yes
Sources:
1. City of San Luis Obispo, Municipal Code, 2015.
2. General Plan, Chapter 8, Water & Wastewater, Adopted: February 24, 1987, Last Revised: May 15, 2018; Council Resolution No. 10893, 2018.
City of San Luis Obispo
2019 Sewer System Management Plan Update
13
Section IV. Operation & Maintenance
The General Waste Discharge Requirements for the Operations and Maintenance component of the Sewer System Management Plan are:
(a) Maintain an up-to-date map of the sanitary sewer system, showing all gravity line segments and manholes, pumping facilities, pressure
pipes and valves, and applicable storm water conveyance facilities;
(b) Describe routine preventive operation and maintenance activities by staff and contractors, including a system for scheduling regular
maintenance and cleaning of the sanitary sewer system with more frequent cleaning and maintenance targeted at known problem areas.
The Preventative Maintenance (PM) program should have a system to document scheduled and conducted activities, such as work orders;
(c) Develop a rehabilitation and replacement plan to identify and prioritize system deficiencies and implement short-term and long-term
rehabilitation actions to address each deficiency. The program should include regular visual and TV inspections of manholes and sewer
pipes, and a system for ranking the condition of sewer pipes and scheduling rehabilitation. Rehabilitation and replacement should focus
on sewer pipes that are at risk of collapse or prone to more frequent blockages due to pipe defects. Finally, the rehabilitation and
replacement plan should include a capital improvement plan that addresses proper management and protection of the infrastructure assets.
The plan shall include a time schedule for implementing the short- and long-term plans plus a schedule for developing the funds needed
for the capital improvement plan;
(d) Provide training on a regular basis for staff in sanitary sewer system operations and maintenance, and require contractors to be
appropriately trained; and
(e) Provide equipment and replacement part inventories, including identification of critical replacement parts.
This section of the SSMP describes the programs utilized to operate and maintain the City’s wastewater
collection system including sewer lines, manholes, force mains, and lift stations. This section also describes
the on-going training required for the City’s Utilities Department, Wastewater Division staff to comply with
State Regulations in order to minimize and prevent sanitary sewer overflows.
Collection System Mapping & Database
Knowledge of the wastewater collection system facilities is essential to effective management. In 1990,
Wastewater Collection staff developed a comprehensive operations and maintenance program that integrated
a computerized maintenance management system (Hansen v7.7). This program was integrated with the City’s
geographic information system in 1997. In 2013, the City implemented a new Computerized Maintenance
Management System (CMMS) called Cityworks, which includes an asset management system and is integrated
with the City’s geographic information system. This software enables maintenance crews to have mobile
computers to organize predictive and preventative maintenance work orders. Mobile computers enable field
staff to query historical system information, continually evaluate the system, update the data base and improve
work efficiency to eliminate stoppages and sanitary sewer overflows.
Wastewater Collection staff has the ability to access and display multi-year inspection results to identify critical
trends that may impact important design and construction considerations. Additionally, Wastewater
Collection staff use the operations and maintenance program to evaluate and prioritize Closed Circuit
Television (CCTV) inspections, assess capacity, establish capital project priority, evaluate program
effectiveness, and store and retrieve historical data about the collection system. It has allowed the section to
efficiently manage resources resulting in increased productivity and a decrease in sanitary sewer overflows,
stoppages, overtime, and customer service interruptions.
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Maps of all components of the City’s sewer system are maintained in the City’s geographic information system.
In addition to these electronic files, the City also maintains a digital library of record drawings for public
improvements.
Table 5: Collection System Database
Facility
Type Basic Map Information Additional Map Information
Manholes
ID number
Location, with reference to
streets and property lines
Size
Material type (brick or precast)
Cover type
Condition rating
GPS coordinates (for buried manholes and those in
easements)
Rim and invert elevation
Pipes Location, with reference to
streets and property lines
Flow basin
X, Y, Z coordinates
Size of pipe and distance between manholes
Structural material (HDPE, PVC, VCP, CPP liner,
DIP)
Mainline type (force main, siphon, surface cover,
parallel pipe, trunk line/interceptor)
Lift
Stations
Location, with reference to
streets and property lines
Type of station
Type, number, capacity, discharge size of pump
Wet well and overflow elevation
Source: City of San Luis Obispo Utilities Department, Wastewater Collection, 2012.
Computerized Control and Monitoring
All of the City’s eight lift stations are monitored by a telemetry system. Telemetry, meaning “measuring at a
distance”, became part of the Utilities Department’s operations in 1988 when the Regional Water Quality
Control Board required the installation of alarms on the City wastewater collection lift stations. Since that
time the telemetry system has evolved into complex computer network of interconnected distributed process
controllers and personal computers. In 2013, the Human Machine Interface (HMI) systems was upgraded
from Fix32 to the latest generation of the software, iFix 5.1. The upgrade to iFix has greater capability to
collect, store, aggregate and trend data than the existing Fix 32 system. This data will be used to generate daily,
monthly and yearly reports, as well as historical analysis of pump run times and operational and maintenance
optimization. In 2019, the City is using version 5.5 of the iFix software, with plans to upgrade to version 5.9.
The telemetry system communicates via radios and sends information to a data concentrator at the Wastewater
Collection shop within the City Corporation Yard located at 25 Prado Road. The system continually
communicates and monitors lift station functions and operations providing Wastewater Collection staff the
ability to remotely monitor pump run times, set pump level on and off points, and alarm high and low levels.
In the event of a failure, the system notifies standby Wastewater Collection personnel through an alarm dialing
system. The alarm system is activated in the event of a power failure, high or low levels in the wet well and
extended communication failures. The system has resulted in advance notice of pending problems which has
decreased overflows.
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Preventive Maintenance and Area Maintenance Programs
The City’s wastewater collection system is aging and requires an aggressive maintenance schedule. To ensure
uninterrupted wastewater flows and to reduce or eliminate stoppages or sanitary sewer overflows, preventive
and area maintenance is scheduled and completed in each of the City’s 14 flow basins. Much review of the
effectiveness of past maintenance practices have led to the area and preventive maintenance programs that
are in place today. These maintenance programs are continually evaluated by Wastewater Collection staff to
avoid sanitary sewer overflows.
The predictive and preventative maintenance activities are
performed by two Wastewater Collection operators (See
Table 6, Annual Maintenance Summary). As a target, the entire
collection system is cleaned as part of the preventative
maintenance program every three to five years.
Preventative maintenance has been successful program in
operation and maintenance of the wastewater collection
system. Hydro-cleaning the entire collection system on a
routine maintenance frequency is a major component in
the reduction of sanitary sewer overflows.
As shown in Table 7, Predictive Maintenance Frequency, over
200,000 feet of the City’s collection system is on periodic
predictive maintenance schedules with a frequency ranging
from two months to 24 months. Approximately 182,000
feet (over 34.5 miles), or 25 percent, of the City’s collection
system, is cleaned annually on the Predictive Maintenance
program.
In addition to the maintenance schedules to eliminate
blockages and sanitary sewer overflows, contractors are
required to follow the latest City’s Standard Specification and
Engineering Standards1 to ensure no debris or construction
material enters the collection system. These standards
require contractors to install sand-traps in manholes where
street adjustment grade rings are installed on paving
operations and new public sewer mains to prevent debris
from entering the collection system during construction.
Sand traps are required to stay in place throughout
construction and are removed only after non-sewage
debris is removed from affected sewer lines.
Wastewater Collection staff routinely respond to mainline
failures to conduct point repairs, schedule wye installations,
complete manhole rehabilitation and manhole ring and cover
replacements.
1 The City’s 2018 Standard Specifications and Engineering Standards, effective on May 31, 2018, are available at the link below:
https://www.slocity.org/home/showdocument?id=19925
Table 7: Predictive Maintenance
Frequency
Frequency Length of Pipe
(in feet)
2 month * 9,924
3 month 3,969
4 month 10,884
6 month 79,477
8 month 2,746
9 month 6,585
10 month 362
12 month 66,292
18 month 643
24 month 1,575
Total: 182,457
* Includes 7,921 feet of sewer lines
located in the City’s downtown that
require hydro-cleaning every two months
due to grease build up.
Table 6: Annual Maintenance
Summary
Year
Preventative
Maintenance
(in feet)
Area
Maintenance
(in feet)
Total
(in feet)
2008 244,109 194,336 453,604
2009 254,226 140,609 394,835
2010 297,802 103,230 401,032
2011 294,629 75,639 370,268
2012 307,635 92,582 400,217
2013 272,478 5,134 277,612
2014 330,216 65,271 395,487
2015 330,854 51,749 382,603
2016 338,827 135,048 473,875
2017 341,748 13,139 354,887
2018 343,578 88,915 432,493
Source: City of San Luis Obispo Utilities Department,
Wastewater Collection, 2019.
City of San Luis Obispo
2019 Sewer System Management Plan Update
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Visual/CCTV Inspections
The City’s collection system is inspected using closed-circuit television (CCTV) by two wastewater collection
staff operators that are Pipeline Assessment and Certification Program (PACP) certified. Staff inspects and
evaluates the system to manage several CCTV programs, these programs are:
• Sanitary sewer overflow inspections
• Predictive/ Preventative maintenance inspections
• I/I investigations
• Basin inspections
• CIP mainline replacement program
• New construction
In 2013, the City Utilities Department upgraded to a new closed-circuit television (CCTV) inspection program.
ITpipes was selected and will interface with the new asset management program found in the Cityworks
database. ITpipes is a (PACP) compliant CCTV inspection system. The system integrates the CCTV sewer
inspection data, displays digital video recordings and generates a PACP condition rating from CCTV data.
Data gathered during CCTV inspections is critical for scheduling predictive and preventative maintenance
activities to avoid sanitary sewer overflows. Staff places the CCTV camera into a gravity sewer line, transmit
video of the sewer line to a nearby service vehicle where the operators can inspect and evaluate the system.
Problem coding (see Table 8) entered as part of the inspection includes:
• Structural Rating
• Condition Rating
• Joint Condition
• Root Intrusion
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2019 Sewer System Management Plan Update
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• Debris / Grease
• Inflow / Infiltration
• Alignment
• Leak Size
• Leak Description
• Crack Coding
Wastewater Collection operators enter CCTV data utilizing ITpipes software which interfaces with the
Cityworks database and asset management system. A sample CCTV inspection report is provided in Appendix
A. Based on the data recorded by Wastewater Collection staff; the PACP formula-based CCTV software
evaluates and prioritizes problems areas. This information is utilized by staff to determine maintenance
schedules, overall mainline condition, and inflow/infiltration (I/I) condition. The asset management program
uses this information in optimizing future replacement capital improvement projects.
Lift Station Maintenance
The City maintains eight sewer lift stations and are maintained bi-monthly (See Table II). The stations are
continuously monitored by a telemetry system. The telemetry system communicates via radios and it sends
information to a data concentrator at the wastewater collection shop at 25 Prado Road. The data concentrator
then sends alarm signals to the auto alarm dialer for staff to respond to pump station failures.
In the event of a power outages or pump failure, the stations telemetry system supplies continuous each of the
City’s pump stations for temporary restore power or by-pass pumping at the effected stations.
The telemetry system provides staff the ability to remotely monitor pump run times, set pump level on and
off points, and alarm high and low levels. In the event of a pump station failure, the system notifies staff
through the alarm dialing system. The alarm system is activated in the event of a power failure, high or low
levels in the wet well and extended communication failures.
Collection staff assists in the maintenance of telemetry system and perform annual operation and alarm testing.
The testing ensures reliability of the system and provides staff the technical experience to maintain the system.
The telemetry system also provides staff with a reliable operational system to efficiently operate and maintain
the wastewater collection lift station pumping system.
Five of the City’s eight pump stations are equipped with connections for portable emergency auxiliary power. In
the event of a power failure, Laguna is powered by the Water Resource Recovery Facility’s (WRRF) auxiliary
power generator. The Tank Farm and Margarita lift stations are also equipped with stationary generators. Five of
the stations are also equipped with pump by-pass manifolds as an alternate solution if a pump station failure was
to occur.
Wastewater Collection staff maintain the City’s lift stations on a bi-monthly schedule. Maintenance activities
include checking pump operation, changing filters, and clearing wet well debris.
Wastewater Collection staff assist in the maintenance of telemetry system and perform operation and alarm
testing annually to ensure reliability of the system.
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Table 8: Problem Coding for CCTV Inspections
City of San Luis Obispo
2019 Sewer System Management Plan Update
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Table 8: Problem Coding for CCTV Inspections, Continued.
Repairs
As part of Wastewater Collection’s Predictive and Preventative Maintenance programs and CCTV inspections,
staff identifies, prioritize and construct a variety of necessary repairs on the collection system. These repairs
include manhole repairs, channel repairs, raising clean-outs, and main line point repairs. Major sewer line
repairs identified through maintenance or inspection activities are directed to Capital Improvement Program
described further in Section VIII, System Evaluation and Capacity Assurance.
Staff Safety & Professional Development
The City’s Utilities Department maintains a budget for annual training consistent with the requirements placed
on the City by the State Water Resources Control Board in the Statewide General Discharge Requirements
for Sanitary Sewer Systems. This training ensures that the Wastewater Collection Section and Pretreatment
staff maintain their California Water Environment Association (CWEA) certifications and also provides the
opportunity to achieve advanced competency in the profession. In 2017, the City hired a Safety and Technical
Training Engineer to implement the Utilities Department's safety programs and safety-related training
programs in compliance with federal, state and local safety, health and environmental laws and regulations.
Each of the City’s Wastewater Collection and Environmental Compliance staff members has earned
certification from the CWEA, as shown in Table 10. Job duties, knowledge, skills and abilities associated with
each CWEA certification level are identified in Appendix B. Staff is required to participate in at least 12 hours
of continuing education or training every two years to maintain their certifications. Staff also attends numerous
safety training workshops at the frequency described in Table 11.
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Table 9: Wastewater Collection System Repairs
Completed Repairs
Year Raise
Cleanout
Mainline
Repair Lining Manhole
repair
Replace
Frame
and
Cover
Wye
Abandonment
Wye
Replacement
Wye
Installation
2008 0 4 0 * * 3 45 15
2009 0 7 0 * * 0 39 11
2010 0 4 2 * * 0 28 9
2011 0 2 1 * * 0 36 11
2012 0 11 1 * * 1 25 10
2013 0 0 7 * * 0 20 9
2014 7 0 0 18 0 1 30 2
2015 7 41 0 2 0 7 61 12
2016 6 8 0 21 0 4 59 5
2017 0 3 2 4 4 4 55 9
2018 0 13 0 3 4 2 68 14
Total: 20 93 13 48 8 22 466 107
* No data.
Pending Repairs
Manhole repair Replace Frame and Cover Raise Clean-Out Main Line Point Repair
24 33 3 25
Source: City of San Luis Obispo Utilities Department, Wastewater Collection, 2019.
Table 10: Staff Certifications
Name Title Certification
Wastewater Collection Staff
Jeremy Gearhart Wastewater Collection Supervisor CWEA - Collection System Technologist - Grade IV
Daren Kersey Wastewater Collection System Operator CWEA - Collection System Technologist - Grade III
John Humphrey Wastewater Collection System Operator CWEA - Collection System Technologist - Grade III
Matt Cyester Wastewater Collection System Operator CWEA - Collection System Technologist - Grade IV
Ryan Beech Wastewater Collection System Operator CWEA - Collection System Technologist - Grade III
Greg Elianow Wastewater Collection System Operator CWEA - Collection System Technologist - Grade I
Environmental Compliance Staff
Ben Marquart Environmental Programs Manager CWEA - Collection System Technologist - Grade IV
CWEA - Environmental Compliance Inspector – Grade 1
Andrew Mora Environmental Compliance Inspector
CWEA - Environmental Compliance Inspector – Grade 1
CWEA - Collection System Technologist - Grade I
CWEA - Laboratory Analyst - Grade I
Source: City of San Luis Obispo Utilities Department, Wastewater Collection, 2019.
City of San Luis Obispo
2019 Sewer System Management Plan Update
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Table 11: Wastewater Collection Safety Training
Training Workshop Frequency
Environmental Safety Required Annually
Hazardous Waste Operations and Emergency Response - Operations Level Required Annually
Hazardous Materials Handling - Signing of Manifest Required Annually
Bloodborne Pathogens Required Annually
Fire Extinguisher Operation Required Annually
Heat Stress Required Annually
Hearing Conservation Required Annually
Respirator Protection Required Annually
Trench Safety Competent Person Initial/As Needed
Aerial Lift Operator Training Initial/As Needed
Hand and Portable Power Tool Safety Initial/As Needed
Supervisor Safety Training Initial/As Needed
Fall Protection Awareness Initial/As Needed
Hazard Communication Initial/As Needed
Lockout/Tagout Initial/As Needed
Confined Space Entry Initial/As Needed
Emergency Action Plan Initial/As Needed
Ergonomics - Field and Transit Personnel Initial/As Needed
Ergonomics - Office Personnel Initial/As Needed
Basic Electrical Safety Initial/As Needed
CPR Required Every 2 Years
First Aid Required Every 2 Years
Forklift Operator Training Required Every 3 Years
NFPA 70 E - Live Exposed Electrical Required Every 3 Years
Driver Awareness Initial/Recommended
Every 3 Years
Backhoe Operator Training Initial/Recommended
Every 3 Years
Crane Operator Training Initial/Recommended
Every 3 Years
Flagging Safety Initial/Recommended
Every 3 Years
Safety through Maintenance and Construction Zones Initial/Recommended
Every 3 Years
Preventing Substance Abuse in the Workplace Recommended Every 2 Years
Safe Workplaces - When Being Nice Isn't Working Recommended Every 2 Years
Technology - Managing Risks in Email, Internet, Blogs, and Cell Phones Recommended Every 2 Years
Source: City of San Luis Obispo, Utilities Department, 2019.
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Maintenance Equipment & Replacement Inventories
Contingency equipment (e.g. portable pumps and generators) support an effective response to emergency
conditions. Spare/replacement parts are kept in inventory to minimize equipment/facility downtime in the
event of a failure. Replacement parts for pumps, motors, and vehicles and appropriately maintained emergency
response equipment and accessories allow field crews to effectively respond to incidents and efficiently
perform routine maintenance. Maintaining an adequate inventory of replacement parts is key to minimizing
high volume and or extended overflow events in the event of a breakdown or malfunction.
The equipment identified in Table 12 is utilized during response to emergency conditions, such as an SSO, as
well as for conducting area and preventive maintenance activities, pump station maintenance and for CCTV
inspections. Wastewater Collection staff also maintain an inventory of replacement parts as shown in Table
13. These materials are kept on hand to address unscheduled maintenance activities and overflows. Staff
experience and knowledge of local availability of critical parts needed for system operation and maintenance
contributes to the maintenance of this inventory. Although these specific numbers vary throughout the year,
listed is an average that staff uses for inventory ordering. Approximately $58,000 is budgeted annually for
maintaining this inventory in 2018-19.
Table 12: Wastewater Collection Equipment
Manufacturer Type Year Specifications Use
Freightliner Vac-Con 2014 3000 psi @ 30/50 gpm Hydro-Cleaner /
Combination Unit
Hydro-cleaner/
combination unit 5 yard debris tank
Sterling Vac-Con 2007 3000 psi @ 30/50 gpm Hydro-Cleaner /
Combination Unit
Hydro-cleaner/
combination unit 5 yard debris tank
Ford Transit 2016 CCTV Mainline inspections
Ford / F-550 Service Truck 2018 1 ½ ton Maintenance
Ford / F-550 Service Truck 2018 1 ½ ton Maintenance
International Dump truck 2008 5 yard Construction/
Maintenance
Caterpillar 304CR 2006 Excavator Construction/
Maintenance
Cummins Generator 2016 200 KVA Emergency Auxiliary
Power
Whisperwatt Generator 2016 100 KW Emergency Auxiliary
Power
Whisperwatt Generator 2013 300 KVA Emergency Auxiliary
Power
Power Prime Trash Pump 2008 6 inch, 2,750 gpm @ 195 TDH Emergency By-Passing
Multiquip Trash Pump 2017 4 Inch 400 gpm @95 TDH Emergency By-Passing
Cart A Way Concrete Mixer 2018 1 ½ yard Emergency By-Passing
Source: City of San Luis Obispo Utilities Department, Wastewater Collection, 2019.
City of San Luis Obispo
2019 Sewer System Management Plan Update
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Table 13: Replacement Parts Inventory
Pipe Fittings
Size Manufacturer Description Location Stock
4" Mission 45° Socket to Spigot Shop 4
4" Mission 45° Socket to Socket Shop 4
4" Mission 22.5° Socket to Spigot Shop 4
4" Mission 22.5° Socket to Socket Shop 4
4" Mission Coupling Shop 4
6" Mission 45° Socket to Spigot Shop 4
6" Mission 45° Socket to Socket Shop 6
6" Mission 22.5° Socket to Spigot Shop 6
6" Mission 22.5° Socket to Socket Shop 6
6" Mission Coupling Shop 4
6"x 4" Mission Concentric Reducer Shop 6
6"x 4" Mission Ecentric Reducer Shop 6
6"x 4" Mission Wye Shop 24
6"x 6" Mission Wye Shop 6
8" Mission 45˚ Socket to Spigot Shop 4
8" Mission 45˚ Socket to Spigot Shop 4
8" Mission 22.5˚ Socket to Spigot Shop 4
8" Mission 22.5˚ Socket to Spigot Shop 4
8" Mission Coupling Shop 2
8"x 6" Mission Concentric Reducer Shop 2
8"x 6" Mission Eccentric Reducer Shop 2
8" x 4" Mission Wye Shop 4
8" x 6" Mission Wye Shop 4
Couplings
Size Manufacturer Description Location Stock
4" Mission Clay to PVC Shop 8
4" Mission PVC to PVC Shop 8
6" Mission Clay to PVC Shop 18
6" Mission PVC to PVC Shop 8
8" Mission Clay to PVC Shop 4
8" Mission PVC to PVC Shop 4
10" Mission Clay to PVC Shop 4
10" Mission PVC to PVC Shop 4
12" Mission Clay to PVC Shop 4
12 Mission PVC to PVC Shop 4
6" Mission Concrete to PVC Shop 18
4" Mission Saddles Shop 12
6" Mission Saddles Shop 12
City of San Luis Obispo
2019 Sewer System Management Plan Update
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Table 13: Replacement Parts Inventory (continued)
PVC Pipe
Size Manufacturer Description Location Stock
4" JM SDR 35 Shop 20'
6" JM SDR 35 Shop 80'
8" JM SDR 35 Shop 40'
10" JM SDR 35 Shop 20'
12" JM SDR 35 Shop 10'
4" Inserta-Tee
Size Manufacturer Description Location Stock
12" Inserta-Tee 4P3512P35 Shop 2
15" Inserta-Tee 4P3515P35 Shop 2
18" Inserta-Tee 4P3518P35 Shop 2
21" Inserta-Tee 4P3521P35 Shop 2
24" Inserta-Tee 4P3524P35 Shop 2
27" Inserta-Tee 4P3527P35 Shop 2
30" Inserta-Tee 4P3530SL40 Shop 2
33" Inserta-Tee 4P3533SL40 Shop 2
36" Inserta-Tee 4P3536SL40 Shop 2
48" Inserta-Tee 4P3548SL40 Shop 2
6" Inserta-Tee
Size Manufacturer Description Location Stock
12" Inserta-Tee 6P3512P35 Shop 2
15" Inserta-Tee 6P3515P35 Shop 2
18" Inserta-Tee 6P3518P35 Shop 2
21" Inserta-Tee 6P3521P35 Shop 2
24" Inserta-Tee 6P3524P35 Shop 2
27" Inserta-Tee 6P3527P35 Shop 2
30" Inserta-Tee 6P3530SL40 Shop 2
33" Inserta-Tee 6P3533SL40 Shop 2
36" Inserta-Tee 6P3536SL40 Shop 2
Filters:
Type Area Quantity
30 micron WWC shop 12
City of San Luis Obispo
2019 Sewer System Management Plan Update
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Table 13: Replacement Parts Inventory (continued)
Lift Station Equipment:
Item Area Quantity Output/size Direction
Transducer head Shop 2 4-20 MA
Transducer cable Shop 2 0.5-0.45 MA
Support Cable Shop 100 SS 1/4 cable
Batteries Shop 2 12v 12amp
Batteries Shop 2 24v 18amp
Chargers Shop 3
3305 Controller Shop 1
Pump seal Shop 1 1.375
Pump seal Shop 5 1 7/8
Pump seal Shop 2 2 1/8
Impellers Shop 1 9 1/8 x 1 7/8 Counter
Impellers Shop 1 9 1/8 x 1 7/8 Clockwise
Impellers Shop 1 8 1/2 x 1 7/8 Clockwise
Impellers Shop 2 10 1/2 x 2 1/2 Counter
Impellers Shop 1 10 1/2 x 2 1/2 Clockwise
Impellers Shop 1 2 7/8 x 1 7/8 Clockwise
Impellers Shop 1 2 7/8 x 1 7/8 Counter
Impellers Shop 2 8.78 x 1 7/8 Counter
Impellers Shop 1 8.78 x 1 7/8 Clockwise
Houghton pella Shop 20gal pump oil
HDPE Electrofusion Fittings
Size Manufacturer Description Location Stock
6" Tega Coupler Shop 2
6"x 4" Tega Saddle shop 2
8" x 4" Tega Saddle Shop 2
8" x 6" Tega Saddle Shop 1
10" x 4" Tega Saddle Shop 1
10" x 6" Tega Saddle Shop 1
4" Tega Coupler shop 2
4" Tega Cap Shop 2
HDPE PIPE DR17
Size Manufacturer Description Location Stock
4" BD HDPE Shop 20'
6" BD HDPE Shop 20'
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2019 Sewer System Management Plan Update
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Table 13: Replacement Parts Inventory (continued)
Twist Tee
Size Manufacturer Description Location Stock
4" Mission 8"- 10" Shop 6
4" Mission 12" - 15" Shop 4
4" Mission 18" - 27" Shop 2
4" Mission 30" - Larger Shop 2
6" Mission 8" - 10" Shop 4
6" Mission 12" - 15" Shop 2
6" Mission 18" - 27" Shop 2
6" Mission 30" - Larger Shop 2
Construction Materials
Size Manufacturer Description Location Stock
24" Mission Concrete Cast iron MH Shop 6
24" Mission Concrete Bolt down MH Shop 4
24" Mission Concrete 3" Riser ring Shop 6
24" Mission Concrete 6" Riser ring Shop 4
24" x 32" Mission Concrete Reduction ring Shop 2
8" Mission Concrete G5 Shop 6
Source: City of San Luis Obispo Utilities Department, Wastewater Collection, 2019.
City of San Luis Obispo
2019 Sewer System Management Plan Update
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Section V: Design & Performance Provisions
The General Waste Discharge Requirements for the Design and Performance Provisions section of the Sewer System Management
Plan are:
(a) Design and construction standards and specifications for the installation of new sanitary sewer systems, pump stations and
other appurtenances; and for the rehabilitation and repair of existing sanitary sewer systems; and
(b) Procedures and standards for inspecting and testing the installation of new sewers, pumps, and other appurtenances and for
rehabilitation and repair projects.
Standards for Installation, Rehabilitation and Repair
Sanitary sewer overflows and operating problems are in some cases attributable to poor design and/or
improper construction of newly constructed or rehabilitated sewer lines. An effective program that ensures
that new sewers are properly designed and installed can minimize system deficiencies that could create or
contribute to future overflows or operation and maintenance problems.
The City requires specific standards for new construction and for rehabilitation of existing sewer lines. Design
criteria include specifications such as pipe materials, minimum sizes, minimum cover, strength, minimum
slope, trench excavation and backfill, structure standards, and other factors. These are communicated through
the City’s Standard Specifications & Engineering Standards, updated in May 2018. Section 77 of the Standard
Specifications includes design and construction requirements related to the City’s wastewater collection system.
Engineering Standards are provided for utilities location, trench details, utility covers, pipeline abandonment,
sewer manholes, sewer lateral, sewer cleanouts, and separation criteria for water and sewer lines.
The City Utilities Department and Engineering and Inspection staff from the City’s Public Works Department
work cooperatively to develop and improve design standards and specifications for new construction to
ensure the most up to date and effective construction plans and specifications possible. The City’s Standard
Specifications & Engineering Standards are updated bi-annually as needed, most recently in 2018, and are available
through the City’s Public Works Department website at the following link:
https://www.slocity.org/home/showdocument?id=19925
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Standards for Inspection and Testing of New and Rehabilitated Facilities
Inspection and testing of new facilities are important to ensure that the City’s established standards are
implemented in the field. Using the legal authority described earlier in the SSMP, completed construction is
not accepted by the City until inspection and testing have been completed. This approach helps ensure proper
operation and maximum life expectancy. Acceptance testing for gravity sewers can include:
• Low pressure air test or water test to identify leakage
• Mandrel test to identify deflection in flexible pipe
• Water of vacuum test of manholes to identify leakage
• CCTV inspection to identify grade variations or other construction defects
Inspection and testing of new wastewater collection facilities may be conducted by Wastewater Collection
staff or by the contractor while a Public Works inspector makes sure the installation and testing meets the
City’s standards. Inspections are performed during and at the completion of construction.
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Section VI. Overflow Emergency Response Plan
The General Waste Discharge Requirements for this section state that the City shall develop and implement an overflow emergency
response plan that identifies measures to protect public health and the environment. At a minimum, overflow emergency response
plan must include the following:
(a) Proper notification procedures so that the primary responders and regulatory agencies are informed of all SSOs in a
timely manner;
(b) A program to ensure appropriate response to all overflows;
(c) Procedures to ensure prompt notification to appropriate regulatory agencies and other potentially affected entities (e.g.
health agencies, regional water boards, water suppliers, etc.) of all SSOs that potentially affect public health or reach the
waters of the State in accordance with the Monitoring and Reporting Program (MRP). All SSOs shall be reported in
accordance with this MRP, the California Water Code, other State Law, and other applicable Regional Water Board
Waste Discharge Requirements or National Pollutant Discharge Elimination System (NPDES) permit requirements.
The Sewer System Management Plan should identify the officials who will receive immediate notification;
(d) Procedures to ensure that appropriate staff and contractor personnel are aware of and follow the Emergency Response
Plan and are appropriately trained;
(e) Procedures to address emergency operations, such as traffic and crowd control and other necessary response activities; and
(f) A program to ensure that all reasonable steps are taken to contain untreated wastewater and prevent discharge of
untreated wastewater to Waters of the United States and minimize or correct any adverse impact on the environment
resulting from the SSOs, including such accelerated or additional monitoring as may be necessary to determine the
nature and impact of the discharge.
A stoppage may occur in the collection system when a buildup of debris (typically roots or grease) stops the
flow of wastewater and backs up behind the stoppage, sometimes resulting in a sanitary sewer overflow. An
overflow may reach the surface through manhole covers in the street or from clean-outs servicing commercial
and residential properties. Sanitary sewer overflows are caused by flat grades, root intrusion, deteriorating
pipes, poorly functioning grease interceptors, or debris in the line. Stoppages and overflows need immediate
attention to restore flow and to minimize the effects of the overflow. Preventative maintenance on public and
private systems can help minimize stoppages and overflows.
History of Stoppages and Overflow Events
The Utilities Department’s Wastewater Collection and Environmental Programs staff record data on both
stoppages and sanitary sewer overflows (SSOs) that occur in the City’s collection system. The City has kept
data on sanitary sewer stoppages since the late 1980s. Since 2003, the City has averaged 10 sanitary sewer
overflows per year as shown in Table 14.
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City Sanitary Sewer Overflow Emergency Response Plan
The City’s sanitary sewer overflow emergency response
procedures provide a standardized course of action for
Wastewater Collection and Environmental Programs staff to
follow in the event of an SSO (see Appendix C). City SSO
response and reporting requirements were revised to conform
with the July 30, 2013 amendment to State Water Board’s
GWDRs for sanitary sewer systems. As stated previously, City
Wastewater Collection staff is available to respond to a reported
sewage spill seven days a week, 24-hours a day. Overflows are
stopped as soon as possible, and steps are taken as necessary to
mitigate the impacts of the spill. Spills from the City’s wastewater
collection system are investigated to determine the cause and
corrective actions are taken or recommended to prevent
additional spills at that location.
Dispatch to Site of Sewer Overflow
Failure of any element within the wastewater collection system
that threatens to cause or causes a sanitary sewer overflow will
trigger an immediate response to isolate and correct the problem.
Crews and equipment are available to respond to any sanitary
sewer overflow location within the City. Crews are dispatched to
any site of a reported sanitary sewer overflow immediately.
Additional Utilities personnel are “on call” should extra staff be needed.
Notification, Crew Instructions & Work Orders
• Dispatchers that receive notification of sewer overflows shall contact the appropriate Wastewater
Collection staff member by phone as soon as possible regarding the sewer overflow locations
• Collection staff will receive instructions from the Wastewater Collection Supervisor (or designee)
regarding appropriate crews, materials, supplies, and equipment needed.
• Dispatchers shall ensure that the entire message has been received and acknowledged by staff who were
dispatched. Staff dispatched to the site of a sewer overflow shall proceed immediately to the site of the
overflow.
• Response crews shall report their findings, including possible damage to private and public property, to
the Wastewater Collection Supervisor (or designee) immediately upon completing their investigation.
• The Wastewater Collection Supervisor (or designee) will receive and convey to appropriate parties requests
for additional personnel, material, supplies, and equipment from crews working at the site of a sewer
overflow.
• The Wastewater Collection Supervisor (or designee) is responsible for confirming that the Overflow
Report was provided to the Regional Water Quality Control Board and County Environmental Health
within the specified time.
Preliminary Damage Assessment
• Wastewater Collection staff shall use discretion in assisting the property owner/occupant as reasonably as
they can. In the event that damage to private property occurs, staff should seek approval of the property
owner and contact the City’s insurance adjuster to assess any damages.
Table 14: Annual
Sanitary Sewer Overflows,
2008-2018
Year # of
SSOs
# SSOs to Reach
Surface Water
2008 10 3
2009 11 7
2010 8 3
2011 5 3
2012 8 5
2013 4 4
2014 16 4
2015 12 2
2016 7 3
2017 10 8
2018 5 2
Average: 10 5
Source: City of San Luis Obispo Utilities
Department, Wastewater Collection, 2019.
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• Appropriate still photographs and video footage, if possible, should be taken of the outdoor area of the
sewer overflow and impacted area in order to thoroughly document the nature and extent of impacts.
Applicable photographs are to be forwarded for filing with the Overflow Report.
Coordination with Hazardous Material Response
• Upon arrival at the scene of a sanitary sewer overflow, should a suspicious substance (e.g., oil sheen, foamy
residue) be found on the ground surface, or should a suspicious odor (e.g., gasoline) not common to the
sewer system be detected, Wastewater Collection staff should immediately alert the City’s Fire Department.
If safe to do so, staff shall stay at the site to await the arrival of the City’s Fire Department to take over
the scene.
• Upon arrival of the City’s Fire Department, Wastewater Collection staff will take direction from the
person with the lead authority of that team. Only when that authority determines it is safe and appropriate
for the Wastewater Collection staff to proceed can they then proceed with the containment, clean-up
activities and correction under the Sewer Overflow Response Plan.
Overflow Correction, Containment, and Clean-Up
Sanitary sewer overflows of various volumes occur from
time to time despite concerted prevention efforts. This
section describes specific actions performed by
Wastewater Collection staff during a sanitary sewer
overflow. The objectives of these actions are to:
• Protect public health, environment and property from
sewage overflows and restore surrounding area back to
normal as soon as possible;
• Establish perimeters and control zones with
appropriate traffic cones and barricades, vehicles or use
of natural topography;
• Promptly notify the regulatory agency’s
communication center of preliminary overflow
information and potential impacts;
• Contain the sanitary sewer overflow, including
preventing discharge of sewage into surface waters; and
• Minimize the City’s exposure to any regulatory agency penalties and fines.
Under most circumstances, the City’s Wastewater Collection staff will handle all response actions with its own
maintenance forces as they have the skills and experience to respond rapidly and in the most appropriate
manner. An important issue with respect to an emergency response is to ensure that the temporary actions
necessary to divert flows and repair the problem do not produce a problem elsewhere in the system. For
example, repair of a force main could require the temporary shutdown of the lift station and diversion of the
flow at an upstream location. If the closure is not handled properly, collection system back-ups may create
other overflows.
Circumstances may arise when the City’s Wastewater Collection staff could benefit from the support of
private-sector construction assistance. This may be true in the case of large diameter pipes buried to depths
requiring sheet piling and dewatering should excavation be required. The City may also choose to use private
contractors for open excavation operations that might exceed one day to complete.
Sanitary sewer overflow at manhole, 2018.
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Staff Responsibilities Upon Arrival
It is the responsibility of the first personnel who arrive at the site of a sanitary sewer overflow to protect the
health and safety of the public by mitigating the impact of the overflow to the extent possible. Should the
overflow not be the responsibility of the City but there is imminent danger to public health, public or private
property, or to the quality of surface waters, then emergency action should be taken until the responsible party
assumes responsibility and takes action. Upon arrival at a sanitary sewer overflow, the Wastewater Collection
staff will:
• Determine the cause of the overflow, e.g. sewer line blockage, sewer line break, pump station mechanical
or electrical failure, etc.;
• Identify and request, if necessary, assistance or additional resources to correct the overflow or to assist in
the determine of its cause;
• Determine if private property is impacted. If yes, staff will advise County Environmental Health;
• Take immediate steps to stop the overflow, e.g. relieve pipeline blockage, manually operate lift station
controls, repair pipe, etc. Extraordinary steps may be considered where overflows from private property
threaten public health and safety (e.g., an overflow running off of private property into the public right-
of-way); and
• Request additional personnel, materials, supplies, or equipment that will expedite and minimize the impact
of the overflow.
Initial Measures for Containment
Following their preliminary assessment, Wastewater Collection staff will:
• Initiate measures to contain the overflow and, where possible, recover sewage which has already been
discharged, minimizing impact to public health or the environment
• Determine the immediate destination of the overflow, e.g. storm drain, street curb gutter, creek, water
body, etc.
• Identify and request the necessary materials and equipment to contain or isolate the overflow, if not readily
available
• Take immediate steps to contain the overflow, e.g., block or bag storm drains, recover through vacuum
truck, divert into downstream manhole, etc.
Additional Measures Under Prolonged Overflow Conditions
In the event of a prolonged sewer line blockage or sewer line collapse, Wastewater Collection staff will
determine whether to set up a portable by-pass pumping operation around the obstruction.
• Appropriate measures shall be taken to determine the proper size and number of pumps required to
effectively handle the sewage flow
• Continuous or periodic monitoring of the by-pass pumping operation shall be implemented as required
• Regulatory agency issues shall be addressed in conjunction with emergency repairs
Cleanup
Wastewater Collection staff will thoroughly clean the site after a sanitary sewer overflow. No readily identified
residue (e.g., sewage solids, papers, rags, plastics, rubber products) will remain. Clean up may include the
following steps:
• Where practical, the area is to be thoroughly flushed and cleaned of any sewage or wash-down water.
Solids and debris are to be flushed, swept, raked, picked-up, and transported for proper disposal.
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• The overflow site is to be secured to prevent contact by members of the public until the site has been
thoroughly cleaned. Posting if required should be undertaken pursuant to the City’s public advisory
procedure.
• Where appropriate, the overflow site is to be disinfected and deodorized.
• Where sewage has resulted in ponding, the pond should be pumped dry and the residue disposed in
accordance with applicable regulations and policies.
• If a ponded area contains sewage which cannot be pumped dry, it may be treated with bleach. If sewage
has discharged into a creek or other water body that may contain fish or other aquatic life, bleach or other
appropriate disinfectant should not be applied, and the California Department of Fish & Wildlife should
be contacted for specific instructions.
• Use of portable aerators may be required where complete recovery of sewage is not practical and where
severe oxygen depletion in existing surface water is expected.
Regulatory Agency Notification
The City is required to report wastewater overflows and discharges consistent with the California Water Code
and the Health and Safety Code. Agency notification requirements vary depending on the quantity of sewage
spilled and the location the spill reaches. Spills are categorized as follows:
CATEGORY 1 SSO:
Discharges of untreated or partially treated wastewater of any volume resulting from an enrollee’s sanitary
sewer system failure or flow condition that:
a. Reach surface water and/or reach a drainage channel tributary to a surface water; or
b. Reach a municipal separate storm sewer system and are not fully captured and returned to
the sanitary sewer system or not otherwise captured and disposed of properly. Any volume
of wastewater not recovered from the municipal separate storm sewer system is considered
to have reached surface water unless the storm drain system discharges to a dedicated storm
water or groundwater infiltration basin (e.g., infiltration pit, percolation pond)
c. Conduct water quality sampling within 48 hours after initial SSO notification for Category
1 SSO that exceed 50,000 gallons or greater to a surface water. (See Appendix E)
Notification: Within two hours of becoming aware of any Category 1 SSO greater than or
equal to 1,000 gallons discharged to a surface water or spilled in a location
where it probably will be discharged to surface water notify the California
Office of Emergency Services (Cal OES) and obtain a notification number.
Reporting: Submit draft report within three business days of becoming aware of the SSO
and certify within 15 calendar days of the SSO and date.
Technical
Report: Submit within 45 calendar days after the end date of any Category 1 SSO in
which 50,000 gallons or greater are spilled to surface waters.
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CATEGORY 2 SSO:
Discharges of untreated or partially treated wastewater of 1,000 gallons or greater resulting from an enrollee’s
sanitary sewer system failure or flow condition that do not reach surface water, a drainage channel, or a
municipal separate storm sewer system unless the entire SSO discharged to the storm drain system is fully
recovered and disposed of properly.
Reporting: Submit draft report within three business days of becoming aware of the SSO and
certify within 15 calendar days of the SSO and date.
CATEGORY 3 SSO:
All other discharges of untreated or partially treated wastewater resulting from an enrollee’s sanitary sewer
system failure or flow condition.
Reporting: Submit certified report within 30 calendar days of the end of the month in which SSO
occurred.
PRIVATE LATERAL SEWAGE DISCHARGE (PLSD):
Discharges of untreated or partially treated wastewater resulting from blockages or other problems within a
privately-owned sewer lateral connected to the enrollee’s sanitary sewer system or from other private sewer
assets. PLSDs that the enrollee becomes aware of may be voluntarily reported to the SSO Database.
NO SPILL CERTIFICATION:
Certify that no SSO’s occurred within 30 calendar days of the end of the month or, if reporting quarterly, the
quarter in which no SSO’s occurred.
The City’s Environmental Compliance staff has reported sewage spills to the Regional Water Quality Control
Board and other agencies since 1988 and CIWQS since 2007, as mentioned previously. The Utilities
Department has developed a Sewage Spill Report form and Spill Reporting Guidelines for spills occurring
during work hours and those that occur after hours to mitigate the impacts associated with any sanitary sewer
overflow that occurs. A sample Sewage Spill Report is provided in Appendix D and the City’s Spill Reporting
Guidelines are summarized in Table 15.
Table 15: Regulatory Agency Contacts
California Office of Emergency Services (Cal OES): If the sewage spill is over 1,000 gallons or reaches waterway, call (800-
852-7550) or (916-845-8911). Record case number for reference and report.
Regional Water Quality Control Board (RWQCB): If spill is over 1,000 gallons, reaches waterway, or occurred in area with
likely public contact, call (805-549-3147 or 805-542-4638) as soon as possible. (Must be reported within two (2) hours of the
time you have knowledge of the spill). Give the required spill information. If you leave a message, leave your name and call back
number. A follow-up call within 24 hours of the spill must be made confirming that all required agencies have been notified
within the two-hour timeframe. Written report must be submitted within five (5) days. Spills that meet CIWQS criteria shall be
appropriately reported by the City’s Wastewater Collection Supervisor.
SLO County Environmental Health: If spill is over 50 gallons, call (805-781-5544). Give the spill information and let them
know that the written report will be sent via fax (Fax: 805-781-4211).
California Department of Fish and Wildlife; If spill reaches waterway, call state office (916-445-0045) or Business Phone at
(916-358-1300). Leave message with same information as above. Speak fast, or the machine will cut you off.
Proposition 65/County Board of Supervisors: If spill is a threat to the environment or human health, call the County’s Public
Works Department at (805-781-5450). Provide the spill information and let them know that the written Sewage Spill Report will
be sent via fax (Fax: 805-781-1229).
Source: City of San Luis Obispo Utilities Department, Sewage Spill Reporting Guidelines, 2019.
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Public Advisory Procedures
In consultation with County Environmental Health, Wastewater Collection
staff will post signs and place barricades, cones, traffic arrow board, and
caution tape as needed to keep vehicles and pedestrians away from contact
with spilled sewage. Creeks or drainage channels that have been
contaminated as a result of an SSO should be posted at visible access
locations until the risk of contamination has subsided to acceptable
background levels. The warning signs, once posted, should be checked every
day to ensure that they are still in place. Signs shall not be removed until
directed by the Wastewater Collection Supervisor. Major spills may warrant
broader public notice such as placing door tag in the surrounding
neighborhood. The approval of the Utilities Director is required prior to
contacting local media when significant areas may have been contaminated
by sewage.
The City continues to work with County Environmental Health on public notification procedures following
sanitary sewer overflows and will revise these procedures as necessary in the future to ensure public health
and safety.
Failure Investigation
Following an SSO event, a failure investigation will be conducted to determine the cause of the SSO and
identify corrective actions needed to reduce or eliminate the potential for the SSO to recur. The investigation
will include reviewing all relevant data to determine appropriate corrective actions for the sewer line segment
or lift station. The investigation will be conducted by the Wastewater Collection Supervisor. The investigation
will include:
• Reviewing past maintenance records;
• Reviewing original construction plans and regulatory reports;
• Reviewing available photographs;
• Conducting a CCTV inspection to determine the condition of the line segment immediately
following the SSO and reviewing the video and logs; and;
• Interviewing staff who responded to the spill, as well as interviewing customers and residents.
The product of this investigation should be the determination of the cause of the SSO and identification of
corrective actions.
SSO Response Training
City personnel who may have a role in responding to, reporting, and/or mitigating a sanitary sewer overflow
will receive training on the contents of the City’s Overflow Emergency Response Plan (Plan). New employees receive
training before they are placed in a position where they may have to respond. Current employees receive
annual refresher training on the City’s Plan and the overflow emergency response procedures.
Contractor personnel who may have a role in responding to, reporting to the City, and/or mitigating a
wastewater collection system overflow receive training on the contents of the Plan.
Records are kept of all training that is provided in support of the City’s Plan. The records for all scheduled
training courses and for each overflow emergency response training event will include date, time, place,
content, name of trainer, and names of attendees.
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Section VII. Fats, Oils, & Grease Control Program
Applicable General Waste Discharge Requirements for the Fats, Oil and Grease Control Program section of the Sewer System
Management Plan state that the City shall evaluate its service area to determine whether a FOG control program is needed. The
FOG source control program shall include the following as appropriate:
(a) An implementation plan and schedule for a public education outreach program that promotes proper disposal of FOG;
(b) A plan and schedule for the disposal of FOG generated within the sanitary sewer system service area. This may include a
list of acceptable disposal facilities and/or additional facilities needed to adequately dispose of FOG generated within a
sanitary sewer system service area;
(c) The legal authority to prohibit discharges to the system and identify measures to prevent SSOs and blockages caused by FOG;
(d) Requirements to install grease removal devices (such as traps or interceptors), design standards for the grease removal devices,
maintenance requirements, best management practices (BMP) requirements, record keeping and reporting requirements;
(e) Authority to inspect grease producing facilities, enforcement authorities, and determination of whether the collection system
agency has sufficient staff to inspect and enforce the FOG ordinance;
(f) An identification of sewer system sections subject to FOG blockages and the establishment of a cleaning maintenance schedule
for each section; and
(g) Development and implementation of source control measures, for all sources of FOG discharged to the sewer system, for each
sewer system section identified in (f) above.
Program Background
The City’s Environmental Programs section of the Wastewater Division permits and inspects grease and oil
generating facilities to ensure control of discharges that may cause blockages. A Fats, Oil and Grease Control
Program FOG program) has been in place in the San Luis Obispo since 1989. It includes discharger education
on the control of fats, oil and grease, and specific guidelines facilities must follow. The program is
implemented by the Environmental Programs Manager and the Environmental Compliance Inspector. Over
167 food establishments are issued Class II Industrial Discharge permits and inspected annually as a part of
this program as food establishments are the largest non-domestic contributors of fats, oil and grease to the
City’s wastewater collection system.
The City of San Luis Obispo Municipal Code Section 13.08.160 requires that a grease trap/interceptor be
installed in all commercial kitchens, restaurants, bakeries, and other food processing facilities to remove liquid
wastes containing fats, oils, and grease. The grease trap must meet the Plumbing Code and be approved by
the City’s Building Division. Improperly maintained grease removal equipment allows FOG to pass through
to the collection system where it can result in blockages and potential sewer overflows. Wastewater Collection
staff frequently clean the sewer lines resulting in additional man hours applied to removing FOG that could
have been removed at the point of generation. The City’s Water Resource Recovery Facility is also impacted
by accumulated FOG which can interfere with routine treatment processes and subsequent compliance with
the City’s permit to discharge to San Luis Creek.
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Environmental Programs staff conducts annual grease trap
inspections at facilities under the Class II Discharge Permit
and the City Municipal Code to document that each grease
trap/interceptor is maintained to prevent FOG from
entering the City’s wastewater collection system. The
permit allows facilities to discharge process wastewater to
the sewer when permit limits are being met. Inspections
are conducted using an inspection form which addresses
best management practices for the prevention of FOG
discharges to the sewer. Permit holders must maintain
records on gallons of FOG disposed including receipts
from grease haulers when an outside service is utilized.
Restaurant protocols that eliminate FOG from entering
inside drains are considered including employee training
and documentation of grease trap/interceptor cleaning.
Inspections are conducted more frequently in areas where excessive grease accumulation has been
documented during preventive and area maintenance of the City’s collection system. Additionally, less
preventive maintenance and fewer sanitary sewer overflows caused by fats, oil and grease allow the Utilities
Department to perform other required infrastructure work.
Guidelines for the Control of Fats, Oil & Grease
As part of the City’s Fats, Oil and Grease Control Program, food establishments are provided the following
guidelines as part of the annual inspection and issuance of a Class II Industrial Discharge permit.
General Measures
• Train all staff on best management practices related to fat, oil and grease. Staff will be more willing to
support an effort if they understand its basis. Trained staff will be more likely to implement best
management practices and work to reduce grease discharges to the sewer.
• Post “No Grease” signs above sinks. Signs serve as a constant reminder to staff of proper grease disposal
practices. Reduction of grease entering the drain reduces the cleaning frequency of the grease removal
device.
• “Dry wipe” pot, pans and kitchen equipment before cleaning. “Dry wiping” will
reduce the amount of grease going into the grease removal devices and the sewer. This
will reduce the cleaning frequency and maintenance costs for grease removal devices
and reduce the amount of grease entering the drain.
• Use absorbents such as paper towels to pick up oil and grease spills prior to mopping.
Decreases the amount of grease that will be put down the drain. This reduces the
amount of grease entering the drain and protects sewers from grease blockages and
overflows.
• Dispose of food waste as solid waste. Dispose of food waste to the trash. Solid waste
disposal of food waste will reduce the frequency and cost of grease removal device
cleaning.
• Use screens in sinks and floor drains to capture food waste and dispose of properly
into the trash. Food waste can cause sewer lateral blockages. Proper disposal of food
waste will protect laterals and sewer mains from blockages and overflows.
The above sticker is
required at all sink
locations
City Wastewater Collection staff cleaning a sewer main using the Vac-con.
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• Collect and recycle waste cooking oil. Excess oil is prevented from entering the grease removal device and
the sewer. Reduction in the cleaning frequency of the grease removal device and less grease being passed
to the sewer.
Grease Trap/Interceptor Maintenance
• Complete grease trap or interceptor maintenance log to document cleaning intervals. Maintenance log can
help your facility determine if cleaning frequency of the grease removal device is sufficient. A proper
cleaning frequency will result in less grease accumulating in the lateral, fewer blockages and less pass
through to the sewer lines.
• Clean grease traps at a frequency that will prevent the accumulation of grease or pass through to the sewer.
Routine cleaning of the grease removal device ensures efficient operations. Routine cleaning will prevent
grease from passing through to the sewer lateral and from accumulating in the sewer mains.
• Use water temperatures less than 140° F in all sinks, especially in the pre-rinse sink. Temperatures above
140° F will dissolve grease, which will re-solidify in the sewer lines. Reduces costs for the energy to heat
the water. Sewer lateral remains free of grease.
• Have a manager present during grease trap/interceptor cleaning to ensure the unit is properly serviced.
The manager can ensure that the grease removal device is properly cleaned and no shortcuts are taken.
Proper cleaning ensures that the grease removal device will function properly and efficiently.
• Do not store anything on or around the grease removal device that will block access. Proper maintenance
is easier to complete if access to the grease removal device is not blocked. Routine maintenance is more
likely to be performed if the grease removal device is easily accessible.
Outdoor Housekeeping/Storm Water Best Management Practices
• Clean floor mats and exhaust filters and other equipment inside. Cleaning greasy equipment outside is one
of the most common sources of fat, oil and grease in our storm drains. Grease and food waste will be
properly disposed of and will not enter the storm drain where it will de-grade creek water quality.
• Sweep or mop outdoor surfaces. Sweeping and mopping outdoor surfaces will reduce non-storm water
runoff and will save water. Elimination of non-storm water discharges that degrade water quality.
• Any water used to clean outside surfaces by contractors must be vacuumed up and properly disposed of
to the sewer. The City Municipal Code prohibits discharging or dumping any sewage, garbage, rubbish or
otherwise polluted water to any storm drain or natural outlet. Improved water quality in our creeks and
compliance with the City code.
• Keep the area around the dumpster/trash storage clear of trash, debris, and grease. Debris, trash, and
grease can be washed into the storm drain during the rainy season. Loose debris and trash will not enter
the storm drain causing blockages and will not enter the waterways.
FOG Program Education
Information on proper disposal of FOG and other SSO prevention measures, including house lateral
maintenance, etc. is disseminated through brochures and articles in the City’s newsletter. The City also utilizes
personal contacts with business owners by the City’s Environmental Compliance Inspector. These methods
have proven to be very effective in relaying information on proper disposal of FOG and SSO prevention
methods to stakeholders.
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Section VIII: System Evaluation & Capacity
Assurance Plan
The General Waste Discharge Requirements for the System Evaluation and Capacity Assurance Plan section of the Sewer
System Management Plan are:
The City shall prepare and implement a Capital Improvement Plan (CIP) that will provide hydraulic capacity of key sanitary
sewer system elements for dry weather peak flow conditions, as well as the appropriate design storm or wet weather event. At a
minimum, the plan must include:
(a) Evaluation: Actions needed to evaluate those portions of the sanitary sewer system that are experiencing or contributing to an
SSO discharge caused by hydraulic deficiency. The evaluation must provide estimates of peak flows (including flows from SSOs
that escape from the system) associated with conditions similar to those causing overflow events, estimates of the capacity of key
system components, hydraulic deficiencies (including components of the system with limiting capacity) and the major sources t hat
contribute to the peak flows associated with overflow events.
(b) Design Criteria: Where design criteria do not exist or are deficient, undertake the evaluation identified in (a) above to establish
appropriate design criteria.
(c) Capacity Enhancement Measures: The steps needed to establish a short- and long-term CIP to address identified hydraulic
deficiencies, including prioritization, alternatives analysis, and schedules. The CIP may include increases in pipe size, inflow and
infiltration (I/I) reduction programs, increases and redundancy in pumping capacity, and storage facilities. CIP shall include an
implementation schedule and shall identify sources of funding.
(d) Schedule: The City shall develop a schedule of completion dates for all portions of the capital improvement program developed
in (a)-(c) above. This schedule shall be reviewed and updated consistent with the SSMP review and update requirements as
described in Section D. 14 [of the GWDR].
Capacity Assessment & Enhancement
A critical function of a wastewater collection system is to provide adequate capacity to handle peak wet
weather flows. The purpose of a capacity assessment is to ensure that adequate capacity exists in all portions
of the collection system and that downstream portions that will receive wastewater from new connections can
handle the additional flow.
The City is completed the Wastewater Collection Infrastructure Renewal Strategy in 2016 including a hydraulic model
the City’s wastewater collection system, and prioritization of system improvements and replacements. The
model is updated annually and is used in capital planning for the City’s Financial Plan.
Wastewater staff continues to identify locations in the collection system that experience or contribute to SSOs
caused by hydraulic deficiencies based on historical maintenance data. Problem areas are prioritized for capital
replacement. Table 16 includes data on improvements to the collection system, including both capital project
and from new development, from 1999 to 2018. For that twenty-year period, 122,493 feet (over 23 miles) of
new sewer lines were installed.
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Table 16: Sewer Line Installations, 1999-2018
Year
Sewer Lines Installed
Capital Improvement Program
(in feet)
Sewer Lines Installed
New Development
(in feet)
1999 416 2,450
2000 269 822
2001 4,322 16,387
2002 158 6,870
2003 2,254 619
2004 1,313 0
2005 3,677 1,759
2006 3,614 502
2007 1,646 1,201
2008 1,613 2,920
2009 5,673 0
2010 923 0
2011 6,379 0
2012 6,851 0
2013 1,303 2,503
2014 4,231 3,045
2015 7,307 4,023
2016 2,055 4,309
2017 1,588 7,808
2018 0 11,683
Total: 55,592 feet 66,901 feet
Average: 2,780 feet/year 3,345 feet/year
Source: City of San Luis Obispo Utilities Department, 2019.
Over the past 25 years the City has made significant progress in reducing sanitary sewer overflows, and service
interruptions with comprehensive maintenance activities and capital improvement projects in the wastewater
collection system. Continued evidence of significant infiltration/inflow indicates that this work alone has not
been effective.
Capital Improvement Program
Corresponding to the City’s two-year budget cycle, the Utilities
Department staff spends significant time updating and developing
the corresponding capital improvement program for the
wastewater collection system. Identified objectives related to
Wastewater Collection System Improvements include:
• Replace aging, deteriorated deficient or otherwise
troublesome sewer infrastructure;
• Reduce periodic maintenance requirements;
• Reduce infiltration and inflow of storm water; and
• Provide uninterrupted sewage flow without health hazard
or effluent leakage.
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Some of the City’s sewer lines are over 100 years old and are undersized. Maintenance requirements increase
dramatically as a pipeline approaches the end of its useful life. With an expected service life of fifty years,
approximately two percent of the wastewater collection system must be replaced each year. In some cases,
pipelines can be rehabilitated without digging them up. Trenchless methods of sewer rehabilitation are utilized
whenever it is economically feasible or necessitated by environmental conditions.
Wastewater collection system capital improvement projects included in the City’s Financial Plan, Capital
Improvement Plan, for 2017-19 through 2021-22 are provided in Appendix F. Estimated cost to construct
improvements to the collection system for those fiscal years are as follows:
2017-18 2018-19 2019-20 2020-21 2021-22
Pipeline Replacement projects $1,250,000 $1,474,000 $1,570,000 $1,630,000 $1,870,000
Telemetry Upgrades $100,000 $38,000
Lift Station Replacement projects 1,085,000 1,980,000
As shown in Table 7, much of the City’s wastewater collection system is on a preventive maintenance schedule.
Proposed projects involve the replacement of sewer mains and related facilities that are approaching capacity.
Modern materials and better pipe joints result in a significant reduction in root intrusion and inflow and
infiltration (I/I). When these older sewer lines are replaced, the lines will be placed on routine area
maintenance.
Private Sewer Laterals
A study conducted in the early 1990s found that private sewer laterals connected to the City’s wastewater
collection system contributed to significant infiltration/inflow problems. The study’s findings indicated that
failures were mostly due to pipe construction materials (such as use of Orangeburg pipe) or joint failure in
clay pipe. Due to infiltration/inflow problems and the availability of PVC, the City’s standard changed during
the 1980s to no longer allow the use of Orangeburg pipe for private sewer laterals.
The City’s Voluntary Sewer Lateral Rehabilitation Program was originally
adopted and implemented in July 1997. The City accepted the first
applications for video inspections of private laterals in September 1997.
After a hiatus from 2004 and 2007 due to limited funding, the program
was reinstated in July 2007. When the program resumed in July 2007, 211
residential service laterals were replaced between 2007 and 2011, as shown
in Table 17. The program was designed to be mutually beneficial to both
the City and the homeowner. The homeowner benefits by receiving
construction permits, technical advice and a rebate of one-half the cost of
replacement or repair up to a maximum of $1,000 per property from the
City. The rehabilitated sewer lateral is a benefit to the City as inflow and
infiltration into the City’s collection system is reduced thereby reducing
wastewater treatment and plant expansion costs related to the need for
additional capacity.
The Voluntary Service Lateral Rehabilitation Program was discontinued in at the end of the 2010-11 fiscal
year. Utilities Department staff is developing an updated Private Sewer Lateral Program, including a rebate
program, for City Council consideration in 2019.
Table 17: Service Lateral
Reimbursements
Year Service Lateral
Reimbursements
2007 22
2008 102
2009 58
2010 29
2011 106
Total: 297
Source: City of San Luis Obispo
Utilities Department, 2012.
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Section IX. Monitoring, Measurement & Program
Modifications
The General Waste Discharge Requirements for the Monitoring, Measurement, and Program Modifications section of the Sewer
System Management Plan state that the City shall:
(a) Maintain relevant information that can be used to establish and prioritize appropriate SSMP activities;
(b) Monitor the implementation and, where appropriate, measure the effectiveness of each element of the SSMP;
(c) Assess the success of the preventative maintenance program;
(d) Update program elements, as appropriate, based on monitoring or performance evaluations; and
(e) Identify and illustrate SSO trends, including: frequency, location, and volume.
Performance Measures
The indicators that the City will use to measure the performance of its wastewater collection system and the
effectiveness of its SSMP are:
• SSO Rate (SSOs/100 miles/year);
• Number of SSOs for each cause (roots, grease, debris, pipe failure, capacity, lift station failures, etc.);
• Average SSO volume (gallons);
• Percentage of SSOs greater than 100 gallons;
• Percentage of SSOs reported as Category 1;
• Percentage of sewage contained compared to total volume spilled; and
• Percentage of total spilled sewage discharged to surface water.
Historical and Baseline Performance
The City maintains information relevant to the performance of the collection system in its database. The data
that is available is shown in Table 18. The City has reported SSOs using CIWQS since 2007. CIWQS data will
be used as the City’s historical performance data. Geospatial and trend analysis will be conducted in future
years as additional data becomes available.
Performance Monitoring and Program Changes
The City evaluates the performance of its wastewater collection system annually using the performance
measures identified above. The City will update the data and analysis in this section at the time of the
evaluation. The City may use other performance measures in its evaluation. The City will prioritize its actions
and initiate changes to this SSMP and the related programs based on the results of the evaluation.
SSMP Updates
The City first adopted its SSMP in 2009, updated it in 2014, and now in 2019 to reflect standard operating
procedures, data, and inventory. The City will update its SSMP at least every five years. The City will determine
the need to update its SSMP more frequently based on the results of the semi-annual audits and the
performance of its sanitary sewer system. In the event that the City decides that an update is warranted, the
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Table 18: Historic Data on Sanitary Sewer Overflows 2008-2018
Year # of SSOs SSO Cause Average Volume
Spilled
Volume Spilled
Discharged
to Surface Water
Future Prevention
2008 10
6 Roots
1 Grease
2 Debris
1 Structural Failure
4,905 520
Changed preventive
maintenance frequency and
completed point repair.
2009 10
7 Roots
0 Grease
1 Debris
2 Structural Failure
40,405 27,675
Changed preventive
maintenance frequency and
completed point repairs.
2010 7
1 Roots
0 Grease
3 Debris
1 Structural Failure
1 Construction
1 Jumper Surcharge
10,575 8,400
Changed preventive
maintenance frequency,
completed point repair and
revised construction
specifications.
2011 5 4 Roots
1 Electrical/Pump 2,150 1,600 Changed preventive
maintenance frequency
2012 8
5 Roots
0 Grease
1 Debris
2 Structural Failure
5,726 1,230
Changed preventive
maintenance frequency and
completed point repair.
2013 4
4 Roots
0 Grease
0-Debris
0 Structural Failure
70 0 Changed preventive
maintenance frequency
2014 16
8 Roots
6 Debris
2 Structural Failure
405 4,250
Changed preventive
maintenance frequency, and
completed point repairs
2015 12
6 Roots
4 Debris
2 Structural Failure
568 1,650
Changed preventive
maintenance frequency, and
completed point repairs
2016 7
5 Roots
1 Debris
1 Capacity Exceeded
Design
2,069 13,950 Changed preventive
maintenance frequency
2017 9
2 Roots
1 Grease
3 Structural Failure
3 Capacity Exceeded
Design
8,471 84,710
Changed preventive
maintenance frequency
Exploring Lateral Program to
reduce I/I
2018 5
3 Roots
1 Grease
1 Debris
568 1,650 Changed preventive
maintenance frequency
Source: California Integrated Water Quality System (CIWQS), 2019.
process to complete the update will be identified at that time. The City will complete the update within one
year following identification of the need for the update.
The City staff will seek approval from the City Council for any significant changes to the SSMP. The authority
for approval of minor changes such as employee names, contact information, or minor procedural changes is
delegated to the Utilities Director.
The City will certify that it has completed the annual audit using CIWQS. Copies of the current SSMP
document will be available to all interested parties at the City of San Luis Obispo, Utilities Department
(Administration Office), 879 Morro Street, during normal business hours.
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Section X: Program Audits
The GWDR requirements for Program Audits section of the Sewer System Management Plan state that the City shall:
Conduct periodic internal audits, appropriate to the size of the system and the number of SSOs. At a minimum, these audits
must occur every two years and a report must be prepared and kept on file. This audit shall focus on evaluating the effectiveness
of the SSMP and the City’s compliance with the SSMP requirements identified in this subsection (D.13 [of the GWDR]),
including identification of any deficiencies in the SSMP and steps to correct them.
This section outlines the auditing method that the City will follow to evaluate the effectiveness of the SSMP
to identify updates that may be needed for a more effective program.
The City will audit its implementation and compliance with the provisions of this SSMP no less than every
two years. The audit will be conducted by staff from the Utilities Department. The audit team may include
members from other areas of the City, as needed. The scope of the audit will cover each of the major sections
of the SSMP. An Audit Checklist, based on the requirements in the GWDR, is included in Table 19.
The results of the audit, including the identification of any deficiencies and the steps taken or planned to
correct them, will be included in the SSMP Audit Report. The SSMP Audit Report will focus on the
effectiveness of the SSMP program, compliance with the WDR requirements, and identification of any
deficiencies in the SSMP. The SSMP Audit Report will identify revisions that may be needed for a more
effective program. Information collected as part of Section 9 – Monitoring, Measurement, and Program
Modifications will be used in preparing the audit. Tables and figures or charts will be used to summarize
information about performance indicators. Completed audits are kept on file for periodic review and
assessment.
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Table 19: SSMP Audit Checklist
Audit Date:
Audit Team Members:
Section/Title SSMP Requirement Audit Yes No
1. Goals Reduce, prevent, and mitigate SSOs Are the goals stated in the SSMP still
appropriate and accurate?
2. Organization
- Names of City staff responsible for
development, implementation, and
maintenance of SSMP
- Names and phone numbers for key City
staff
- Chain of communication for reporting
SSOs
- Designate LRO(s)
-Chain of communication for reporting
SSOs
A. Is the City Staff telephone list current?
B. Is the SSO Chain of Communication
telephone list current?
C. Is Figure 2-1 of the SSMP, entitled
“Organization of City Staff Responsible for
Sewer System,” current?
D. Are the position descriptions accurate
portrayals of staff responsibilities?
E. Is Figure 2-2 of the SSMP, entitled “SSO
Reporting Chain of Communication” accurate
and up-to-date?
3. Legal Authority
-Ability to require sewers and connections
be properly designed and constructed
-Ability to ensure access for inspection,
maintenance, and repairs (includes public
portion of lateral)
-Ability to limit discharge of FOG and debris
that may cause blockages
-Ability to require the installation of grease
removal devices
-Ability to inspect FOG producing facilities
-Ability to enforce violations of the City’s
sewer ordinances
Does the SSMP contain references to the
current City Ordinance(s) documenting the
City’s legal authority to:
A. Prevent illicit discharges?
B. Require proper design and construction of
sewers and connections?
C. Ensure access for maintenance, inspection
or repairs for portions of the laterals owned or
maintained by the district?
D. Limit discharges of fats, oils and grease?
E. Enforce any violation of its sewer
ordinance?
4. Operation &
Maintenance
-Describe routine preventive maintenance
program
-Document completed preventive
maintenance using work order system
-Rehabilitation and replacement plan that
identifies and prioritizes sanitary sewer
system facilities
-CIP showing the schedule for rehabilitation
and replacement projects
-Provide regular technical training for City
sanitary sewer system staff
-Require contractors to provide training for
their employees who work in the Agency’s
sanitary sewer system facilities
-Maintain equipment inventory
-Maintain critical spare part inventory
Collection System Maps
A. Does the SSMP reference the current
process and procedures for maintaining the
City’s sewer collection system maps?
B. Are the City’s sewer collection system maps
complete, current and sufficiently detailed?
Resources and Budget
C. Does the City allocate sufficient funds for
the effective operation, maintenance and
repair of the sewer collection system and is
the current budget structure documented in
the SSMP?
Prioritized Preventative Maintenance
D. Does the SSMP describe current
preventative maintenance activities?
E. Are the City’s preventative maintenance
activities sufficient and effective in minimizing
SSOs and blockages?
Scheduled Inspections and Condition
Assessments
F. Is there an ongoing condition assessment
program sufficient to develop a capital
improvement plan addressing the proper
management and protection of infrastructure
assets? Are current components of this
program documented in the SSMP?
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Section/Title SSMP Requirement Audit Yes No
Contingency Equipment and Replacement
Inventory
G. Does the SSMP list the major equipment
currently used in the operation and
maintenance of the collection system and
document the procedures of inventory
management?
H. Are contingency equipment and
replacement parts sufficient to respond to
emergencies and properly conduct regular
maintenance?
Training
I. Are the training records current?
J. Does the SSMP document current training
expectations and programs within the district’s
Wastewater department?
Outreach to Plumbers and Building
Contractors
K. Does the SSMP document contain current
outreach efforts to plumbers and building
contractors?
5. Design &
Performance
Provisions
-Design and construction standards for new
sanitary sewer system facilities
-Design and construction standards for
repair / rehabilitation of existing sanitary
sewer system facilities
-Procedures for the inspection and
acceptance of sanitary sewer system
facilities
A. Does the SSMP contain current design and
construction standards for the installation of
new sanitary sewer systems and for the
rehabilitation and repair of existing sanitary
sewer systems?
B. Does the SSMP document contain current
procedures and standards for inspecting and
testing the installation of new sewers, pumps
and other appurtenances and the rehabilitation
and repair of existing sewer lines?
6. Overflow
Emergency
Response Plan
-Procedures for the notification of primary
responders
-Procedures for the notification of
regulatory agencies
-Program to ensure appropriate response
to all SSOs
-Proper reporting of all SSOs
-Procedure to ensure staff are aware of,
are trained, and follow Plan
-Procedure to ensure contractor personnel
are aware of, are trained, and follow Plan
-Procedures to address emergency
operations such as traffic and crowd control
-Program to prevent the discharge of
sewage to surface waters
-Program to minimize or correct the
impacts of any SSOs that occur
-Program of accelerated monitoring to
determine the impacts of any SSOs that
occur
A. Does the City’s SSO Overflow and
Emergency Response Plan establish
procedures for the emergency response,
notification and reporting of SSOs?
B. Is wastewater staff appropriately trained on
the procedures of the SSO Overflow and
Emergency Response Plan?
C. Is the SSO Overflow and Emergency
Response Plan effective in handling SSOs in
order to safeguard public health and the
environment?
7. FOG Control
Program
-Public outreach program that promotes the
proper disposal of FOG
-Plan for the disposal of FOG generated
within the Agency’s service area
-Demonstrate that the Agency has
allocated adequate resources for FOG
control program
A. Does the FOG Control Program include
efforts to educate the public on the proper
handling and disposal of FOG?
B. Does the FOG Control Program identify
sections of the collection system subject to
FOG blockages, establish a cleaning schedule
and address source control measures to
minimize these blockages?
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Section/Title SSMP Requirement Audit Yes No
-Identification of sanitary sewer system
facilities that have FOG-related problems
-Program of preventive maintenance for
sanitary sewer system facilities that have
FOG-related problems
C. Are requirements for grease removal
devices, best management practices (“BMP”),
record-keeping and reporting established in
the
district’s FOG Control Program?
D. Does the City have sufficient legal authority
to implement and enforce the FOG Control
Program?
E. Is the current FOG Control Program
effective in minimizing blockages of sewer
lines resulting from discharges of FOG to the
system?
8. System
Evaluation &
Capacity Assurance
Plan
-Identification of elements of the sanitary
sewer system that experience or contribute
to SSOs caused by hydraulic deficiencies
-Established design criteria that provide
adequate capacity
-Short and long term CIP that includes
schedules for projects to addresses known
hydraulic deficiencies
-Procedures that provide for the analysis,
evaluation, and prioritization of hydraulic
deficiencies
A. Does the City’s SSMP evaluate hydraulic
deficiencies in the system and, if needed,
establish sufficient design criteria and
short/long term capacity enhancement and
improvement projects?
B. If needed, does the City’s SSMP establish a
schedule of approximate completion dates for
both short and long-term improvements and is
the schedule reviewed and updated to reflect
current budgetary capabilities and activity
accomplishment?
9. Monitoring,
Measurement &
Program
Modifications
-Maintain relevant information to establish,
evaluate, and prioritize SSMP activities
-Monitor implementation of the SSMP
Measure, where appropriate, the
performance of the elements of the SSMP
- Assess success of the preventive
maintenance program
-Update SSMP program elements based
on monitoring or performance
-Identify and illustrate SSO trends
A. Does the SSMP accurately portray the
methods of tracking and reporting selected
performance indicators?
B. Is the City able to sufficiently evaluate the
effectiveness of SSMP elements based on
relevant information?
10. SSMP Program
Audits
- Conduct audits at least every 2 years
- Record the results of the audit in a report
- Record the changes made and/or
corrective actions taken
A. Will the SSMP Audit be conducted every
two years as required by SWRCB 2006-0003-
DWQ?
11. Communication
Program
- Communicate with the public regarding
the preparation of the SSMP
- Communicate with the public regarding
the performance of the SSMP
- Communicate with tributary or satellite
sewer systems
A. Does the City effectively communicate with
the public about the development and
implementation of its SSMP and continue to
address any feedback?
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Section XI. Communication Program
The GWDR requirements for the Communication Program section of the Sewer System Management Plan state that the City
shall:
(a) Communicate on a regular basis with the public on the development, implementation, and performance of its SSMP. The
communication system shall provide the public the opportunity to provide input to the Agency as the program is developed and
implemented.
(b) Create a plan of communication with systems that are tributary and/or satellite to the Agency’s sanitary sewer system.
Communication with the Public
The Utilities Department website contains information and contact numbers for the Wastewater Collection
and Environmental Program sections.
As described in this Plan, the City reports SSOs electronically to the California Integrated Water Quality
System (CIWQS). The electronic SSO data, as well as information regarding regulatory actions, is available at:
http://www.waterboards.ca.gov/water_issues/programs/ciwqs/publicreports.shtml.
The Utilities Department’s quarterly newsletter, Resource, serves to communicate to Utilities customers about
the collection system, FOG program, reporting sanitary sewer overflows, etc. An article from a past
publication is included on the next page.
The adopted SSMP document is available to the public at the City of San Luis Obispo, Utilities Department
(Administration Office) at 879 Morro Street during normal business hours or on the internet at
https://www.slocity.org/home/showdocument?id=6347. Interested parties can contact the Utilities
Department for additional information at 805-781-7215.
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Appendix A: Sample CCTV Inspection Report
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Appendix B: California Water Environment Association
(CWEA) Certification Requirements
The California Water Environment Association’s (CWEA’s) certification requirements are available on the
CWEA website at the link below:
http://www.cwea.org/cert_whatcert.shtml
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Appendix C: Sanitary Sewer Overflow (SSO)
Reporting Guidelines
Standard Operating Procedure (WWC)
Sanitary Sewer Overflow (SSO) Reporting Guidelines
Always have the following information ready to give any agency: Location (include lane court, way,
etc.), date, time and size of spill, whether it reached a creek or storm drain, name of creek, property
owner, type of cleanup performed, and description of cause.
Category 1: GREATER THAN 1,000 GALLONS OR REACHES WATERWAY/STORM
DRAIN OR TRIBUTARY TO A SURFACE WATER
Conduct water quality sampling within 48 hours after initial SSO notification for Category 1 SSO’s that
exceed 50,000 gallons to a surface water. (See Water Quality Monitoring Requirements, SSMP, Appendix
E)
Category 2: GREATER THAN OR EQUAL TO 1,000 GALLONS THAT DOES NOT REACH
A SURFACE WATER, A DRAINAGE CHANNEL OR THE MS4 THAT IS NOT FULLY
RECOVERED.
1. During Normal Business Hours: Contact Jeremy Gearhart, or designee, from Wastewater Collection
staff. Wastewater Collection staff will contact the proper agencies.
2. After Hours or on Weekend: contact the following agencies:
a. California Office of Emergency Services (Cal OES): (800-852-7550) or (916- 845-8911). Call as
soon as possible, but no later than two (2) hours after becoming aware of the discharge. Be sure
to get the name of the person you talked to and Cal OES control #. If you leave a message,
give all the above information about the spill, your name, and call back number.
b. San Luis Obispo County Sheriff Department: (781-4550). Call as soon as possible, but no later
than two (2) hours after becoming aware of the discharge. Tell them that there has been a SSO and
request they contact the on-call person from the County Environmental Health Department.
c. Regional Water Quality Control Board (RWQCB): (805-542-4638) Katie DiSimone
kdisimone@waterboards.ca.gov. Call as soon as possible, but no later than two (2) hours after
becoming aware of the discharge. Leave detailed message with spill information and contact
number. Backup Contact for a Significant Spill - NPDES Program Manager Sheila Soderberg,
805-549-3592, ssoderberg@waterboards.ca.gov
d. Department of Fish and Wildlife: (831-649-2817) 24-hour dispatch. Regardless of the size, if any
amount of wastewater reaches a creek. Call as soon as possible, but no later than two (2) hours
after becoming aware of the discharge. Be sure to get the name of the person you talked to at
dispatch.
e. San Miguelito Mutual Water Company (SM): (805-595-2348). Regardless of the size, if any
amount of wastewater reaches a creek. Call as soon as possible, but no later than two (2) hours
after becoming aware of the discharge. Select #4 (pound 4) “To be connected to our emergency
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call service” and leave detailed message with spill information and contact number. E-mail spill
report to Dan Migliazzo dmigliazzo@smmwc.com and cc: Rick Koon rkoon@smmwc.com within
24 hours after the spill or by the end of the first normal workday if the spill occurred during a
weekend or holiday hours.
Complete City’s spill report form and give to Environmental Programs staff ASAP. If no one is present
when the report is dropped off, be sure to contact somebody in Environmental Programs and let them
know you dropped off the report.
Category 3: ALL OTHER DISCHARGES OF UNTREATED OR PARTIALLY TREATED
WASTEWATER RESULTING OF A SANITARY SEWER SYSTEM FAILURE.
1. During normal business hours: Contact Jeremy Gearhart, or designee, from Wastewater Collection
staff. Wastewater Collection staff will contact the proper agencies.
2. After hours or on a weekend: Contact the San Luis Obispo County Sheriff Department: (805-781-
4550) tell them that there has been a discharge of wastewater and request they contact the on-call
person from the County Environmental Health Department. Complete the City’s spill report and give
to Environmental Programs staff ASAP.
SSO LESS THAN 50 GALLONS:
Complete the City’s spill report and give to Environmental Programs ASAP.
WRITTEN AND ORAL REPORTING REQUIREMENTS
Contact the following agencies:
a. Cal OES: If spill is over 1000 gallons or reaches waterway, call (800-852-7550) or (916-845-8911).
Record case number for reference and report.
b. RWQCB: If spill is over 1000 gallons, reaches waterway, or occurred in area with likely public
contact, call (805-542-4638) Katie DiSimone, as soon as possible (Must be reported within two (2)
hours of the time you have knowledge of the spill). Provide the required spill information. If you leave
a message, leave your name and call back number. Written report must be submitted within five (5)
days. Spills that meet CIWQS criteria shall be reported by Jeremy Gearhart within three days.
c. SLO County Environmental Health: If spill is over 50 gallons, call (805-781-5544). Give the spill
information and let them know that the written report will be sent via fax (Fax: 805-781-4211).
d. California Department of Fish and Wildlife : (831-649-2817) 24 hour dispatch. Regardless of the
size, if any amount of wastewater reaches a creek. Call as soon as possible, but no later than two (2)
hours after becoming aware of the discharge. Be sure to get the name of the person you talked to at
dispatch.
e. Proposition 65/County Board of Supervisors: If spill is a threat to the environment or human health,
call the Public Works Dept. at (805-781-5252). Give the spill information and let them know that the
written report will be sent via fax (Fax: 805-781-1229).
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After Hours or
Weekends Normal
Business Hours
Police Dispatch
notifies on-call staff
WWC on-call staff
responds
WWC staff notifies
Cal OES3, SM4
and Sheriffs for
EH1 immediately.
>50,000 gallons –
Follow WQM5 in
SSMP App. E
WWC staff submits spill
report to EP ASAP.
WWC staff enter spill in
City database. EH¹,
Prop 65² notified if
required
Spill not
contained, >
1,000 gallons
or reaches DI
or waterway
Person receiving call
notifies WWC staff
WWC staff
responds
Spill from
private lateral
Property owner notified by
WWC to make repair and
clean up spill. If spill is in the
public right-of-way, WWC will
clean up spill area
Spill contained,
does not reach
DI/waterway,
<1,000 gals
WWC completes
spill report and
enters
information into
the database
WWC staff
complete
spill report
and submit
to EP ASAP
Spill contained,
does not reach
DI or waterway,
between 50 and
1,000 gallons
WWC staff
notifies Sheriff
Dept. for EH¹ Spill not
contained,
reaches DI or
waterway
SPILL
RECEIVED
Spill not
contained,
>1,000 gallons,
reaches DI or
waterway
Spill submitted
to RWQCB,
EH¹, Prop 65²,
F&W
WWC staff notifies
Cal OES3, SM4,
EH1, RWQCB
immediately.
>50,000 gallons-
Follow WQM5 in
SSMP App. E
WWC staff enter spill in
City database and submits
report to EH¹, Prop 65²
Spill reported on
CIWQS within 3
days by LRO
LRO Certifies final
Report
Submit final
certified report
within 15 days
of conclusion
EH¹ - Requires all spills > 50 gallons to
be reported.
Prop 65² - Reported if threat to the
environment or human health.
Cal OES³ - Reported if over 1,000
gallons & contained or if spill reaches
DI or waterway.
SM4 – Reported if any spill reaches DI
or waterway.
WQM5 - Spills >50,000 gallons
Report on CIWQS
within 30 days of
end of calendar
month in which
SSO occurred
Report on CIWQS
within 30 days of
end of calendar
month in which
SSO occurred
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Appendix D: Sample Sewer Spill Report
Reporting Party: Phone:
Caller Name: Phone:
Date of Call: Time:
Spill Location ID: Spill Location Address:
1. Spill Start Time Information
Caller Interview
Is sewage actively spilling? Yes No
If yes, from: Manhole/Street Wet Well Other
Private Property/Cleanout Inside Building
When did caller first notice spill? Date: Time:
Comments:
Additional Witness/If Any
Name: Address: Phone:
Description of spill:
Time spill observed:
2. Spill Responder
Include all available details (use attachments if needed) – submit follow-up written reports as necessary.
Stop! Take Pictures of Overflow at This Time
Names of Responders and arrival time (List All):
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3. Spill Estimation
Estim ate d spill v olum e that re ache d a se parate storm drain that flow s to a surface w ater body :
Estim ate d spill v olum e re covere d from the separate storm drain that flows to a surface wate r body :
(Do not include w ate r use d for cle an-up)
Estim ate d spill v olum e that dire ctly re ache d a drainage channe l that flows to a surface w ate r body :
Estim ate d spill v olum e re covere d from a drainage channe l that flows to a surface w ate r body :
Estim ate d spill v olum e discharged dire ctly to a surface w ate r body :
Estim ate d spill v olum e re cov e re d from surface wate r body :
Estim ate d spill v olum e discharged to land: (Include s backups to building structure s):
Estim ate d spill v olum e recovered from the discharge to land: (Do not include w ate r use d for cle an-up)
Estim ate d spill start time/date:
4. Spill Location
Spill Observed From: Manhole ID: Lift Station ID:
Cleanout Address:
Comments:
Building Address:
Comments:
Spill Destination: Building Paved Surface Other
(Check all that apply) Storm System Street
Unpaved Surface Curb
Did Spill Reach: Creek/Channel Storm Drain
If yes, Creek Name or Storm Drain Location:
Does spill appear to be over 1,000 Gallons? Yes No
Time discovered spill entered waterway:
IF SPILL REACHED A CREEK, CHANNEL, OR STORM DRAIN
THIS IS A CATEGORY 1 SPILL UNLESS FULLY CAPTURED/RETURNED.
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Spill Category determined to be:
(See back of this form for category descriptions if necessary)
Category 1 Category 2 Category 3 Private Lateral
5. Downstream Manhole
No Flow in Channel Trickle Flow in Channel Depth of Flow in Channel Inches
6. Spill Containment
Containment Implemented: Yes No
Containment Measures:
7. Cleanup
Time Clean Up Began: Completed:
Gallons Retrieved:
Describe Clean Up Operations:
Were Public Health Warnings Posted? Yes No
If Yes, Location(s) Posted:
8. Cause of Spill
Failure At: Mainline Lower Lateral
Upper Lateral Force Main
Lift Station Wet Well Other
Spill Cause: Roots Grease
Debris Vandalism
Capacity Design
Lift Station Failure Other
Was Spill Cause determined by CCTV inspection? Yes No (If Yes, Attach TV Report to this form)
Any overflows in the last 3 years in the same location? Yes No If yes, how many?
Measures taken to prevent future overflows in this location:
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APPENDIX E: Spill Reporting Guidelines (>50,000 gal)
WATER QUALITY MONITORING REQUIREMENTS (from SSS WDR):
To comply with subsection D.7(v) of the SSS WDRs, the enrollee shall develop and implement an SSO Water
Quality Monitoring Program to assess impacts from SSOs to surface waters in which 50,000 gallons or greater
are spilled to surface waters. The SSO Water Quality Monitoring Program, shall, at a minimum:
1. Contain protocols for water quality monitoring.
2. Account for spill travel time in the surface water and scenarios where monitoring may not be possible
(e.g. safety, access restrictions, etc.).
3. Require water quality analyses for ammonia and bacterial indicators to be performed by an accredited
or certified laboratory.
4. Require monitoring instruments and devices used to implement the SSO Water Quality Monitoring
Program to be properly maintained and calibrated, including any records to document maintenance
and calibration, as necessary, to ensure their continued accuracy.
5. Within 48 hours of the enrollee becoming aware of the SSO, require water quality sampling for, at a
minimum, the following constituents:
i. A m m o n i a
ii. Appropriate Bacterial indicator(s) per the applicable Basin Plan water quality objective or Regional
Board direction which may include total and fecal coliform, enterococcus, and e-coli.
Sewer System Overflow Sampling Plan:
The City of San Luis Obispo Wastewater Collection Staff will first determine whether or not the SSO has reached a
receiving water, by calculating travel paths, flow rates, and containment measures. If the spill is 50,000 gallons or
greater and has come in contact with a receiving water, the SSO Sampling Plan will be followed. The receiving
water will be monitored at three locations:
1) At the SSO discharge point to the receiving water.
2) Upstream from the point of the SSO.
3) Downstream from the point of the SSO.
Three parameters will be monitored per Standard Methods or EPA protocol:
1) Ammonia
2) Fecal Coliform
3) Enterococci
Notify City’s State certified, #1498, laboratory personnel of field sampling requirement related to spill over 50,000
gallons in waterway. In the event that the SSO occurs after hours, contact aforementioned laboratory at start of
business hours the following morning.
Use Personal Protective Equipment (PPE) while performing sampling. Proceed with testing and/or sampling only
when it is determined to be feasible and safe.
1.1 Point of Discharge Sampling/Testing
Step 1: Move to the point where the SSO entered receiving water.
Step 2: Photograph, map and mark the location for future reference.
Step 3: Label the field samples with the date, time, location, and sampler’s initials Record the testing results.
Step 4: Collect 2 bacteriological samples (Fecal Coliform and Enterococci) using the supplied containers
labeled “micro”.
Step 5: Collect a 500 ml sample for ammonia using a plastic 16 oz container that contains H2SO4 (gold colored)
preservative.
Step 6: Keep the samples under ice or refrigeration until transferred to the laboratory’s process refrigerator (for
example, use a cooler).
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1.2 Upstream Sampling/ Testing
Step 1: Move 10’ upstream from the point where SSO enters the receiving water (to obtain a non-contaminated
baseline sample).
Step 2: Follow the procedure mentioned in “1.1 Point of Discharge Sampling/Testing” (Steps 2 – 6).
1.3 Downstream Sampling
Step 1: Determine how far the SSO has traveled downstream
• Estimate rate of flow of stream using established City of SLO SOP.
• Use a floating item on the water to determine how far it travels in one minute x estimated number
of minutes since SSO first reached the water. Then measure and record width of stream and in the
same location measure the depth of stream in five locations from left to right.
Step 2: Move to three locations downstream.
• 50’ and 200’ downstream from the point where the SSO enters the receiving water, and
• A point nearest the extent of how far the SSO traveled following calculation in Step 1.
Step 3: Follow the directions mentioned in “1.1 Point of Discharge Sampling / Testing” (Steps 2 - 6)
NOTES:
1) Do not touch micro sample container’s opening rim or bottom of the lid once the lid is removed.
2) Do not overfill sample containers because they contain preservatives including concentrated acids and caustics that are
dangerous and harmful if contacted with skin, eyes etc.
3) All samples should be labeled with location, date, time, preservation and other pertinent. Follow-up sampling and testing
will be performed if determined to be necessary.
4) A technical report summarizing spill event and associated analytical results will be prepared and submitted within the
required 45 days.
City of San Luis Obispo Water Quality Laboratory service hours are: Monday through Sunday, 6AM to 4:30PM.
Samples will be collected and preserved by the City’s state certified laboratory using established SOP protocol and
using per the Environmental Laboratory Accreditation Program (ELAP) certificate number #1498.
Laboratory materials, reagents, and equipment are all maintained as a part of the laboratory’s quality assurance
program to produce legally defensible data as required by ELAP.
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Appendix F: Capital Improvement Plan
FY 2017-19 through 2022-23
CAPITAL IMPROVEMENT PLAN –INFRASTRUCTURE & TRANSPORTATIONWASTEWATER COLLECTION SYSTEM IMPROVEMENTS -FY 2017-18 THROUGH FY 2021-22Project DescriptionCommunity Priority܈Rehabilitation or Replacement܆Major City Goal & Other Important Objectives܆Measure G PriorityPurpose and NeedReplacement of the wastewater collection system’smanholes, sewer pipes, and related appurtenances is aprogram required to improve reliability and to reduce inflow and infiltration (I/I). Theprogram’s replacement schedule will address existing structural deficiencies, and the potential for near-term failure according to priority.Addressing I/I into the wastewater collection system is a long-term effort involving investigation and correction. Flow studies and field investigations have been successful in identifying sources of I/I in both City and privately-owned sewer infrastructure. Funding will be required to monitor, correct and reduce I/I sources. The City’s wastewater collectionsystem includes approximately 138 miles of sewer lines and related operational equipment. Some pipes are over 100 years old and are undersized. Maintenance requirements increase dramatically as pipeline and equipment approach the end of their useful life. Pipeline and operational equipment requires ongoing maintenance and condition assessment to prioritize periodic replacement, ensure proper function, andprolong service life. With an expected service life of 60 years, approximately two percent of the wastewater collection system is targeted for replacement or rehabilitation per year.StatusThis is an existing project shown in the 2015-17 Financial PlanSpecification No. 90239.Project TeamUtilities DepartmentOperating Program Number & Title: 55310 –Wastewater CollectionAssignmentProgram/Work GroupEstimated HoursProject ManagementPublic Works, Engineering700 hours/yearProject SupportUtilities, Wastewater, Public Works, Administration, Wastewater Collection Supervisor and Staff50 hours/yearConstruction ManagementPublic Works, Inspection500 hours/yearEnvironmental ReviewCommunity Development8 hours/yearProject ProponentUtilities, Wastewater, Wastewater Division Manager40 hours/year(
CAPITAL IMPROVEMENT PLAN –INFRASTRUCTURE & TRANSPORTATIONSite List –For multi-year projects2017-2018 Project List:LocationPavement AreaLength (feet)CostSewerline Replacement (Trench and Pipe Bursting)Design (contract services)$60,000Santa Barbara - Morro / OsosOsos - at 1819 Osos / BuchonChurch - at 1054 Church / OsosLeff - Santa Rosa / Osos4656$780,00041,19443414380Total: 2,571Construction Management (contract services)$70,000Inflow/Infiltration ReductionN/AN/A$200,000Trench RepairsN/AN/A$25,000Raise manholes after pavingN/AN/A$25,000Easement –East of Chorro at Meinecke to Murray StudyN/AN/A$30,000Infrastructure Renewal Strategy –Foothill at Chorro to Lincoln Study N/AN/A$60,000Total$1,250,0002018-2019 Project List:LocationPavement AreaLength (feet)CostSewerline Replacement (Cured In Place Pipe)Design (contract services)$17,000Walnut - HWY 1 / MorroMorro - Mill / PeachMorro - Palm / Mill4717$170,00042464361Total: 1324Construction Management (contract services)$17,000Sewerline Replacement (Cured In Place Pipe)$38,000Design (contract services)(Easement) Albert- Longview / McCollumMill - Toro / MorroSanta Rosa - Palm / Monterey41340$380,0004,113689288Total: 2996Construction Management (contract services)$38,000(
CAPITAL IMPROVEMENT PLAN –INFRASTRUCTURE & TRANSPORTATIONSewerline Replacement (Pipe Bursting)$10,000Design (contract services)(Easement) - Foothill / Rougeot7335$100,000Construction Management (contract services)Total: 335$10,000Sewerline Replacement (Open Trench)$37,000Design (contract services)(Easement) - Chorro- Meinecke / Murray(Easement) - Murray- Chorro / HWY 1(Easement) - Murray / Murray7303$370,00076697150Total: 1122Construction Management (contract services)$37,000Inflow/Infiltration ReductionN/AN/A$200,000Trench RepairsN/AN/A$25,000Raise manholes after pavingN/AN/A$25,000Total$1,474,0002019-2020 Project List:LocationPavement AreaLength (feet)CostSewerline Replacement (Trench and Pipe Bursting)Design (contract services)$110,000(Easement) Off Westmont at 260 Westmont Westmont –at 260 Westmont / JeffreyJeffrey - Westmont / Cerro RomauldoCerro Romauldo - Jeffrey / Tassajara8165$1,100,00083087,822657833Total: 3571Construction Management (contract services)$110,000Inflow/Infiltration ReductionN/AN/A$200,000Trench RepairsN/AN/A$25,000Raise manholes after pavingN/AN/A$25,000Total$1,570,000(
CAPITAL IMPROVEMENT PLAN –INFRASTRUCTURE & TRANSPORTATION2020-2021 Project List:LocationPavement AreaLength (feet)CostSewerline Replacement (Trench and Pipe Bursting)Design (contract services)$110,000Luneta –Tassajara / VerdeVerde –Luneta / RamonaEasement –Luneta / VerdeSerrano –at 180 Serrano / BroadPenman –Penman / SerranoEasement –at 121 Penman / PenmanBressi –sewer main into BressiPalomar –at 95 Palomar / Serrano7350$1,160,0007572717571851747671597166789Total: 3838Construction Management (contract services)$110,000Inflow/Infiltration ReductionN/AN/A$200,000Trench RepairsN/AN/A$25,000Raise manholes after pavingN/AN/A$25,000Total$1,630,0002021-2022 Project List:LocationPavement AreaLength (feet)CostSewerline Replacement (Trench and Pipe Bursting)Design (contract services)$135,000Johnson - San Luis Drive / BuchonBuchon - Johnson / MorroSanta Rosa - Islay / BuchonSanta Rosa - Pismo / BuchonMorro - Buchon / Pacific Pacific - Morro / Chorro Chorro - Pacific / Marsh1444$1,350,0001,4191142904294472894239326Total: 4,416Construction Management (contract services)$135,000Inflow/Infiltration ReductionN/AN/A$200,000Trench RepairsN/AN/A$25,000Raise manholes after pavingN/AN/A$25,000Total$1,870,000(
CAPITAL IMPROVEMENT PLAN –INFRASTRUCTURE & TRANSPORTATIONAnticipated Facility Life Span: 60 yearsInitial Projects Costs by PhaseBudget to Date2017-18 2018-19 2019-20 2020-21 2021-22TotalLand Acquisition (950)$30,000$30,000Study (951)$60,000$60,000Design (952)$60,000 $102,000 $110,000 $110,000 $135,000$517,000Construction (953)$780,000 $1,020,000 $1,100,000 $1,160,000 $1,350,000$5,410,000Const. Management (954)$70,000 $102,000 $110,000 $110,000 $135,000$527,000Total$0 $1,000,000 $1,224,000 $1,320,000 $1,380,000 $1,620,000$6,544,000Ongoing Costs by TypeBudget to Date2017-18 2018-19 2019-20 2020-21 2021-22TotalMaintenance Materials$250,000 $250,000 $250,000 $250,000 $250,000$1,250,000Total$0 $250,000 $250,000 $250,000 $250,000 $250,000$1,250,000Project Funding by SourceBudget to Date2017-18 2018-19 2019-20 2020-21 2021-22TotalSewer Fund$1,250,000 $1,474,000 $1,570,000 $1,630,000 $1,870,000$7,794,000Total$0 $1,250,000 $1,474,000 $1,570,000 $1,630,000 $1,870,000 $7,794,000(
CAPITAL IMPROVEMENT PLAN – INFRASTRUCTURE & TRANSPORTATIONWASTEWATER COLLECTION TELEMETRY SYSTEM IMPROVEMENTS - FY 2017-18, FY 2018-2019Project Description Community Priority ܈Annual Maintenance ܆Major City Goal & Other Important Objectives ܆Measure G Priority Purpose and Need The wastewater collection system’s telemetry controllers and radios are unreliable and becoming obsolete. Proactively maintaining hardware and equipment is critical task of the wastewater operations to ensure year round functionality for the operations of sewer lift stations during normal operations, and emergency conditions. The upgrades to the telemetry system will provide new hardware, and software system that are easier to program and maintain. StatusThis is an existing project shown in the 2015-17 Financial Plan Specification No. 91370. Project TeamLead Department: Utilities DepartmentOperating Program Number & Title: 55310 – Wastewater Collections Assignment Program/Work Group Estimated Hours Project Management IT Department, Control Systems Staff 80 hours/year Project Support Utilities, Wastewater, Wastewater Collection Supervisor and Staff 50 hours/year Project Proponent Utilities, Wastewater Division Manager 30 hours/year Site List – For multi-year projects LocationEstimated Year of Construction Pavement Area (for projects in right-of-way) Margarita Lift Station 2017-2018 N/ACalle Joaquin Lift Station 2017-2018 N/AFoothill Lift Station 2017-2018 N/A(
CAPITAL IMPROVEMENT PLAN – INFRASTRUCTURE & TRANSPORTATIONAnticipated Facility Life Span:50 years Ongoing Costs by TypeBudget to Date 2017-18 2018-19 2019-20 2020-21 2021-22 TotalUtilities$0Maintenance Materials$100,000 $38,000$138,000Staff$0Contract Services$0Total$0 $100,000 $38,000 $0 $0 $0 $138,000Project Funding by SourceBudget to Date 2017-18 2018-19 2019-20 2020-21 2021-22 TotalSewer Fund$100,000 $38,000$138,000Total$0 $100,000 $38,000 $0 $0 $0 $138,000(
CAPITAL IMPROVEMENT PLAN – INFRASTRUCTURE & TRANSPORTATIONWASTEWATER LIFT STATION REPLACEMENT – FY 2017-18, FY 2021-22 Project Description Community Priority ܈Rehabilitation or Replacement ܆Major City Goal & Other Important Objectives ܆Measure G Priority Purpose and Need Laguna. The interior of the Laguna Lift station wet well, constructed in 2014, is becoming discolored and blistered. The discoloration is an initial symptom of corrosive liquids and gases present within the lift station’s wet well, but the small blistering appears to suggest that the coatings may have been damaged. A study is required to evaluate the level of the damage to the protective coatings in order to perform the appropriate re-sealing of the wet well’s coating to prevent damage to structure’s concrete and steel reinforcement. Margarita. The Margarita Lift Station was put into service in 1971. In 1995, the floor of the sump pump was leaking and repairs were made. Cathodic protection was added in 1996 to extend the life of the lift station structure. In 2010, leaks were repaired on the floor and walls. An inspection report of the coatings confirmed signs of accelerated deterioration causing the dry well to be structurally unsound. The inspection report noted a high risk of failure at the station as both the wet and dry well walls were deteriorating, causing leaks and structural issues. Because of its age and condition, replacement of the lift station has been prioritized with the other necessary system components that include the wet well and force main. The force main is approximately 225 feet in length and is cast iron pipe. Based on a pipe condition assessment, the pipeline is operating beyond its useful life expectancy. These replacements will ensure that all components function effectively as a system. The replacement lift station will accommodate a portion of the future development anticipated in the Margarita Area Specific Plan. Foothill. The Foothill Lift Station is the oldest in the City’s wastewater collection system and is in a location with minimal access. This station is over 50 years old and is operating beyond its life expectancy. The equipment was originally installed in 1962 to serve the Broad Street and Orcutt area, but was removed and warehoused, then reconfigured and installed in its present location in 1986. Due to external corrosion the sump pump floor was repaired in 1995. Although cathodic protection was installed in 1996 to extend the life of the station, it is experiencing exterior corrosion and leaking ground water through internal welds in the structure. The existing force main is approximately 325 feet in length and is cast iron pipe. In 2013 the force main failed due to corrosion and pipe age. A pipeline condition assessment has shown it should be replaced. Because of its age and condition, replacement of the lift station has been prioritized with the other necessary system components. It is recommended that the station be relocated approximately 500 feet west of its current location to serve future development. Relocating the station would require an addition of 500 feet of gravity and force main and property and easement acquisition StatusThis is an existing project shown in the 2015-17 Financial Plan Specification No. 91214. INSERT LOCATION MAP/PHOTO HERE(
CAPITAL IMPROVEMENT PLAN – INFRASTRUCTURE & TRANSPORTATIONProject TeamLead Department: Utilities DepartmentOperating Program Number & Title: 55310 Wastewater Collection Assignment Program/Work Group Estimated Hours Project Management Public Works, Engineering 400 hours/year Project Support Utilities, Wastewater, Public Works, Administration, Wastewater Collection Supervisor and Staff 300 hours/year Construction Management Public Works, Inspection 200 hours/year Environmental Review Community Development 8 hours/year Project Proponent Utilities, Wastewater Division Manager 75 hours/year Site List – For multi-year projects LocationEstimated Year of Construction Pavement Area (for projects in right-of-way) Laguna Lift Station Wet Well Coating 2017 N/AMargarita Lift Station 2017 5Foothill Lift Station 2021 7Anticipated Facility Life Span:50 yearsInitial Projects Costs by PhaseBudget to Date 2017-18 2018-19 2019-20 2020-21 2021-22 TotalDesign (952)$25,000$25,000Construction (953)$900,000 $1,800,000$2,700,000Const. Management (954)$160,000 $180,000$340,000Total$0 $1,085,000 $0 $0 $0 $1,980,000 $3,065,000Project Funding by SourceBudget to Date 2017-18 2018-19 2019-20 2020-21 2021-22 TotalSewer Fund$1,085,000 $1,980,000$3,065,000Total$0 $1,085,000 $0 $0 $0 $1,980,000 $3,065,000(