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Invitation for Public Comment On the Development and
Implementation of the City of Salinas Sanitary
Sewer Management Plan
Residents of City of Salinas, Boronda and Bolsa Knolls Tributary
to the Salinas Sanitary Sewer Collection System
Submit Comments To: Ron Cole Wastewater Manager 426 Work Street
Salinas, CA. 93901 Email: [email protected] (Via email is
preferred for comments) Office: (831) 758-7921 Admin: (831)
758-7233 The City is accepting public comment, at any time, on the
Sanitary Sewer Management Plan as the plan is intended to be an
evolving document subject to audit and change as necessary. Regular
audits of the program are required at a minimum of every two years
from plan approval. However, comments submitted after April 14,
2009, will be considered in future amendments to the Management
Plan as the Management Plan is expected to be approved by City
Council on May 5, 2009. Background The City of Salinas is inviting
public comment on the development and implementation of the City’s
Sewer System Management Plan, also called an SSMP. The SSMP
describes the activities that a public wastewater agency uses to
manage its wastewater collection system effectively. The
development of the City's SSMP was required when the State Water
Resources Control Board (SWRCB) adopted the Statewide General Waste
Discharge Requirement (GWDR), Order No. 2006-000, on May 2, 2006.
The invitation to comment is open to all Salinas residents and
residents of the Boronda and Bolsa Knolls communities tributary to
the Salinas Collection System. Comments should be received by April
14, 2009 for inclusion in the adopted SSMP. Comments may be made at
any time thereafter for consideration in future amendments to the
ongoing management program as the SSMP is intended to be a living
document. If you would like to participate in this process please
use the contact information included at the top of this
document.
mailto:[email protected]
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CITY OF SALINAS
SSMP Plan and Development The City is required to develop a plan
and schedule for development and implementation of the SSMP. The
following plan and schedule was approved by the City Council on
March 10, 2009. Each of the 12 elements to be included in the Plan
are indicated in the table with a general description of what is
required to be included in the element. If you are interested in
commenting on any of the Plan Elements please use the contact
information listed. In the pages following the Plan and Schedule,
the 2007 Annual Report for the Sanitary Sewer Management Plan
required under the City’s previous WDR Permit is included to be
used as a general guide to the City’s current SSMP program. The
2007 Annual Report will be used as a guide for the new SSMP
outlined in the table below.
SSMP Development Plan & Schedule Sanitary Sewer and
Industrial Waste Collection Systems
Task Element
Criteria
Date To
Complete
Responsible
Person
Contact
Information
SSMP Development Plan & Schedule
Initial plan on developing & implementing SSMP
03/10/2009
Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
1. Goal Stated goals for SSMP
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
2. Organizational Structure
Names & Staff positions responsible of developing and
implementing the SSMP
Chain of communication for SSO reporting
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
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CITY OF SALINAS
3. Legal Authority
Demonstration of Legal Authority to operate and maintain sewage
collection system
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
4.
Operation and Maintenance Program
To include: Update mapping of Collection Systems
Preventative Maintenance Program
Rehabilitation & Replacement Program
Collection System Inspection Program
Operation and Maintenance Staff Training
Maintain critical Equipment & Replacement Parts
Inventory
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
5. Design and Performance
To include: Design standards for new & rehabilitated
systems
Inspection & testing standards for new and rehabilitated
systems
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
6.
Overflow Emergency Response Program
Written Procedures for response to SSO’s
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
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CITY OF SALINAS
7.
Fats, Oils & Grease (FOG) Control Program
Program to reduce or eliminate FOG related Sanitary Sewer
Overflows
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
8.
System Evaluation and Capacity Assurance Plan
Capital Improvement Plan for hydraulic capacity including system
evaluation for portions experiencing capacity related overflows
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
9.
Monitoring Measurement & Program Modification
Maintain records, monitor and assess effectiveness of SSMP;
update as necessary
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
10. SSMP Audit Plan
Schedule of periodic SSMP audits, at least every two years
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
11.
Communication with Public and Agencies
Communication Plan to public and satellite areas with drainage
to collection system on development, implementation &
performance of SSMP
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
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CITY OF SALINAS
12. Final SSMP Incorporates all elements of the
SSMP for implementation. Governing Body approval of final SSMP is
required by the WDR.
05/02/2009 Ron Cole Wastewater Manager
(831) 758-7921 [email protected]
2007 Sanitary Sewer Management Program - Current Operational
Program: The following is the 2007 Sanitary Sewer Management Plan
Annual Report that was submitted to the Central Coast Regional
Water Quality Control Board. The Annual Report was required under
the City’s previous Waste Discharge Requirements Permit and will be
used as a guide in the Development of the new Sanitary Sewer
Management Plan. 2007 SSMP Annual Report Begins on Next Page.
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CITY OF SALINAS
City of Salinas
Sanitary Sewer Management Plan for WDR R3-2002-0078
Attachment B
Part B-III Legal Authority
Part B-IV Measures and Activities
Part B-VII Overflow Emergency Response Plan
Part B-IX Capacity Evaluation
Part B-V Design and Performance Provisions
Part B-VIII Source Control Program
*(Requested Report Extension Date – March 4, 2008 (RWQCB)
January 30, 2008
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City of Salinas – MAINTENANCE SERVICES DEPARTMENT
426 Work Street • Salinas, California 93901 • (831) 758-7233
January 30, 2008 State of California Regional Water Quality
Control Board Central Coast Region Attention: Roger Briggs 895
Aerovista Place, Suite 101 San Luis Obispo, CA 93401-7906 SUBJECT:
City of Salinas WDR R3-2002-0078
Dear Mr. Briggs The City of Salinas is pleased to submit the
enclosed Sanitary Sewer Annual Report for 2007. This submittal is
intended to be a dynamic document that serves as a framework for
implementation the Sanitary Sewer Management Plan under WDR
R#-2002-0078. The report addresses the following elements of the
Attachment B Sanitary Sewer Management Plan:
• Part III – Legal Authority; • Part IV – Measures and
Activities; • Part VII – Overflow Emergency Response Plan; • Part
IX – Capacity Evaluation; • Part V – Design and Performance
Provisions; and • Park VIII – Source Control Program.
Respectfully Submitted, Ron Cole, Wastewater Manager Maintenance
Services
cc: Denise Estrada, Maintenance Services Director
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Sanitary Sewer Collection System Summary
State of California Water Quality Control Board. WDR
R3-2002-0078
The City maintains approximately 270 miles of sanitary sewer
collection system pipeline and 11 Sanitary Sewer Lift Stations. The
City’s Maintenance Services Department, Wastewater Division, under
the direction of the Maintenance Services Director, is responsible
for operation and maintenance of the City’s sanitary sewer
collection system. The City’s Wastewater Manager is the lead person
to plan and implement these responsibilities. Current City staffing
for operation and maintenance of the sanitary sewer system includes
8.25 full time equivalent (FTE) employees. The Wastewater Division
has 11.75 FTE additional staff that are funded through storm sewer,
industrial waste or street sweeping programs. All wastewater staff
are available for support of the sanitary sewer program. The
employees may also perform other functions for the storm sewer and
industrial waste systems. Employees with the Wastewater Division
are trained in spill response and containment, illicit discharge
detection and reporting, confined space entry, CPR and First
Aid.
In 2007, the City continued as a participating member of the
Southern Monterey Bay Dischargers Group. The membership is by way
of contractual agreement with the Monterey Regional Water Pollution
Control Agency to assist with a regional comprehensive public
education program. Members in the 2007 program include *the Cities
of Salinas, Pacific Grove and Monterey, the Seaside County
Sanitation District, Marina Coast Water district, Castroville Water
district, County of Monterey, Pebble Beach Community Service
District, Carmel Area Wastewater District, and the California
American Water Co. *see Appendices to Part B-VIII Source Control
Program. The 2007 grease education and outreach program included
theater ads, radio advertising and printed ads. Grease awareness
has increased quite a bit since we began the grease outreach
programs in 2003. The programs customer surveys indicate in 2002
about 30% of the population was not aware of proper grease disposal
methods. However the most recent surveys now show only 14% of
respondents are not aware that grease is the leading cause of sewer
spills. This is an improvement of three percent for the City of
Salinas over the 2006 survey results. This is quite an improvement
over the life of the program and can potentially be seen in fewer
sanitary sewer system overflows. New to the grease program in 2007
include a potentially wider audience with print ads, internet ads,
radio ads, movie ads and the development of a website
“clogbusters.com” with grease education information and links to
member agencies. Web site statistics are enclosed with this
document as Attachment E.
In 2007, the City reached a contractual agreement and
established a scope of work with the Monterey Regional Water
Pollution Control Agency to provide source control grease trap
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inspections of local restaurants and other food
service/preparation establishments. Sufficient funds have been
approved for this service contract. The agreement was approved by
the City
Council in April 2007 joining other local agencies with grease
trap inspection agreements with the MRWPCA. Inspections will
include an initial inspection to establish the grease control
inventory of the facilities and Best Management Practices (BMPs)
educational guidance with a follow-up inspection for compliance.
The scope of work is tentatively based on the Pacific Grove model
and may be modified to address situations specific to Salinas.
Since the contract was signed by the City of Salinas and MRWPCA for
assistance with the Grease WDR Program in April 2007, the MRWPCA
Source Control Division has been performing the following tasks
which are included in the contract scope of work or are in direct
support of this program:
� Review of all food preparation facility plans that are
submitted to the City plan center for remodel or new
construction
� Working with architects, mechanical engineers and property
owners on proper sizing of grease pretreatment equipment
� Conducting on site inspections for new grease pretreatment
installations
� Responding to business owner requests for information,
guidance, and education concerning their grease pretreatment
equipment and BMPs for their facility
� Responding to grease trap or interceptor failures, overflows
and businesses being investigated by the City Code Enforcement
� Providing reminders of interceptor pump out deadlines for all
food preparation facilities within the City
� Compiling an updated list of food preparation facilities for
the Grease Program data base
� Developing a draft Program introduction letter for future mail
out
Future tasks will include surveying/inspecting each food
preparation facility for actual pretreatment on site and generating
requirement letters or in compliance letters for each facility.
Sewer projects continued in 2007 following major projects
completed in 2006 that included the completion of the 7.5 million
dollar replacement of the Rossi/Bridge Street sewer trunkline and
the $646,000 replacement of 1,600 ft of sewer main on Kern Street
from a recommendation from wastewater maintenance staff. In 2007
the City completed the rehabilitation of deteriorated manhole
structures on the Romie Lane - South Main Street Trunk Lines at a
project cost of $161,000. The City has neared completion for the
installation of backup power generators to
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three additional sanitary sewer lift stations. With these new
installations there will be seven of the City’s 11 sanitary sewer
lift stations protected from power failures with backup generators.
The priority for the new installations was given to stations with
the highest flow volumes. This project began in 2007 at an
estimated cost of $525,000. An additional project to install flow
meters at these same three stations will be implemented in
2008.
Due to potential for sanitary sewer overflows, pollutants of
concern include raw sewage, bacteria and other chemical waste
illegally placed in the waste stream. Due to concerns for public
health and potential environmental impacts the sanitary sewer
collection system is given a High Priority status. In response to
the high priority status The City maintains a comprehensive
maintenance schedule for collection system pipes and for sanitary
sewer lift stations. The City has also developed a written spill
response plan that is a guide for sanitary sewer and other
hazardous spills. Spill responses depending on severity and
notification procedures are a collaborative effort that may involve
response by the Maintenance Services Department in conjunction with
the Salinas Fire Department, Monterey County Environmental Health
and other state and local agencies as determined.
Objectives to be considered in prioritizing activities
include:
Prevent any discharges from reaching surface waters. Surface
waters that may be affected by discharges from the City include:
Santa Rita Creek, Gabilan Creek and tributaries, Natividad Creek
and tributaries, Markley Swamp, Reclamation Ditch 1665, and the
Salinas River.
Prevent discharges from reaching the storm drain system and
completely contain and clean any discharges that do reach the storm
drain system before such discharges reach surface waters.
Prevent dry weather overflows from public sewers.
Prevent wet weather overflows from public sewers.
Prevent overflows from private laterals.
The City maintains sanitary sewer overflow records in accordance
with Regional Water Quality Control Board requirement under WDR
R3-2002-0078.
To insure continued system operation regarding the City’s 11
sanitary sewer lift stations the City maintains 5 portable towable
diesel powered generators to provide emergency power to lift
stations not equipped with permanent on-site electrical generators.
Four of the highest flow stations are equipment with permanent
backup generators with three more within 60 days of completion for
installation. This gives effective coverage of all sanitary lift
stations and reduces the potential for overflows during power
outages. The pump stations are generally inspected daily. The City
has a pump maintenance mechanic record book to log maintenance
activity at the sewer pump stations. Routine maintenance includes
but is not limited to: inspection of
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electrical panels, pump and level controls, air compressors, wet
well and dry well conditions and pump motor operation.
The City keeps an inventory of key replacement parts for the
sewer lift stations, so breakdowns and malfunctions can be repaired
quickly to avoid potential overflow situations. A spare motor
controller, air compressor, alarm dialer, air lines and misc. minor
parts are kept in inventory for repairs to lift stations. A lift
station maintenance truck with an overhead lift boom and power
winch is used to carry a full complement of tools and minor repair
parts. A backup 30 horsepower pump motor is kept for emergency
backup of the highest flow station at Lake Street. In 2007, several
backup motors were purchased for additional emergency coverage at
other lift stations. Spare manhole risers and covers are kept in
inventory for repairs in the streets. Emergency contact numbers for
local parts vendors and contractors are kept for emergency response
to pipeline and other system repairs
The City owns the necessary equipment to respond to most
overflow situations. This equipment now includes three hydro/vacuum
trucks, a towable pump, temporary bypass hoses, and portable
generators. The City secured funds in 2006 to purchase a new
hydro-vac truck that was delivered in March 07. This has brought
additional stability to the City’s sewer maintenance program. The
City also maintains 24-hour contacts and informal agreements with
many contractors and businesses that can be called in response to a
major event. The City keeps key materials on-site at the City Yard
to respond quickly to overflows. Sandbags and sandbagging material,
absorbents, absorbent booms and pads are kept for containment and
cleanup. Pipeline plugs for pipe sizes of 6 inches to 24 inches are
kept on site for containment and repairs. A 6 inch pump and
flexible hosing are kept in inventory for local bypass operations
or pumping of overflows back into the sanitary sewer.
Alarm systems are installed at the lift Stations. These alarms
are integrated into the phone system of each lift station and calls
out to Monterey County Communications (911) with alarm information.
During daytime work hours the Maintenance Services Departments
Dispatch Operator is notified at the Maintenance Services Yard and
communicates the alarm to appropriate personnel by radio or pager.
First responder response time during daytime work hours is
typically 5 to 15 minutes. The City of Salinas, Public Works,
provides 24-hour on-call personnel that are trained to respond to
all types of emergencies, including sewer main line blockages and
overflows from public or private properties. During off duty hours
and weekends, County Communications and other designated responders
are provided with a callout sheet of emergency numbers and contact
numbers to the 24 hour on-call person for Maintenance Services for
emergency response. Response time during off duty hours is
typically within 30 minutes of receiving call. The City’s on-call
personnel have the necessary communications equipment for
additional contact of City personnel, as needed, up to and
including the declaration of a local emergency. Initial response
staff available is the 12 member Wastewater Division Staff with
additional support available from the 13 member Street Maintenance
Division. Additional staffing if needed of 50 plus members from
other Maintenance Divisions and Parks and Recreation Personnel
located at the City Public Service Yard. The central location for
information is located at the Public Works Service Yard, at 426
Work Street, Salinas, Ca. 93910.
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General BMP guidelines are documented in CASQA Water & Sewer
Utility Maintenance SC-76 which include but are not limited to
:
• Clean sewer lines on a regular basis • Establish a routine and
hot spot maintenance program • Identify areas needing repair or
maintenance • Prioritize repairs. (pipelines 18” and above have
been televised and major repairs were
completed in 2006 under a 24 million dollar multi year repair
plan. • Review previous maintenance history to help identify “hot
spots” or areas with frequent
maintenance problems and locations of potential system failure.
• Identify and track sanitary sewer discharges • Identify dry
weather and wet weather infiltration/inflow. (The City conducted
wet
weather flow metering during the 2005/06 wet weather season and
is currently monitoring wet weather flow for the 2007/08 winter
season to assist in identifying infiltration/inflow)
• Disinfection of sewage overflow areas and restrict cleanup
materials from entering storm system.
• Identify source of the spill • Maintain appropriate records •
Develop notification procedures regarding spill reporting • Public
education component for grease related source control
A review of the City’s current and ongoing Sanitary Sewer
Management Plan indicate that the program is effective and
continues to effectively address and reduce the potential for
sanitary sewer overflows. The management plan will be further
enhanced by increased activity in the coming year with the
implementation of the restaurant grease trap inspection
program.
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Table of Contents
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Contents
Part B-III Legal Authority
WDR
Requirements.........................................................................................................
B-III-1 Summary of Existing City
Authority............................................................................
B-III-1 Existing City of Salinas Legal Authority
......................................................................
B-III-2
Interagency Agreement with
MRWPCA.............................................................
B-III-2 City Code Ch. 36 Industrial Waste, Wastewater Collection
& Discharge .. ... B-III-2 City Resolution for Installation of
Sewer Laterals..............................................
B-III-3 MRWPCA Ordinances 92-02 and 93-03
...............................................................
B-III-4 MRWPCA Regional Grease Program
..................................................................
B-III-7 City Design Standards and Standard
Specifications..........................................
B-III-8
Part B-IV Measures and Activities WDR
Requirements.........................................................................................................B-IV-1
Maintenance Facilities, Equipment and Replacement
Parts......................................B-IV-2 Map of Collection
System...............................................................................................B-IV-3
Prioritization of Activities
..............................................................................................B-IV-5
Preventive Operation & Maintenance Activities
........................................................B-IV-6
Rehabilitation Plan
..........................................................................................................B-IV-9
Training...........................................................................................................................B-IV-13
Response to Overflows from Private
Property..........................................................B-IV-15
Disposal of Grease and Fats
.........................................................................................B-IV-16
Appendix A - Sanitary Sewer Lift Stations
.......................................................B-IV-18
Appendix B – Sewer Pump Maintenance Inspection Record
.........................B-IV-19 Appendix C – Daily Sewer
Maintenance
Log...................................................B-IV-22
Appendix D – Sewer Manhole Inspection Maintenance
Checklist................B-IV-23 Appendix E – Monthly Summary
Report for Wastewater Division..............B-IV-30 Appendix F –
Monthly Hot Spot
List.................................................................B-IV-32
Part B-VII Overflow Emergency Response Plan WDR
Requirements........................................................................................................B-VII-1
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Table of Contents
14
City of Salinas Overflow Emergency Response Plan
................................................B-VII-1
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Table of Contents
15
Part B-IX Capacity Evaluation WDR
Requirements.........................................................................................................
B-IX-1 Identification of
Deficiencies..........................................................................................
B-IX-1 Phased Rehabilitation Program
.....................................................................................
B-IX-2 System Evaluation
..............................................................................................
B-IX-4 Capacity Enhancement Measures
....................................................................
B-IX-5
Part B-V Design and Performance Provisions WDR
Requirements..........................................................................................................
B-V-1 City of Salinas Design Standards & Standard
Specifications ..................................... B-V-1 System
Performance
Measures.......................................................................................
B-V-2
Part B-VIII Source Control Program WDR
Requirements......................................................................................................
B-VIII-3 Background on City Grease
Program........................................................................
B-VIII-3 Cooperation with MRWPCA Source Control Program
.......................................... B-VIII-4 Maintenance
Program for Grease Control
................................................................
B-VIII-5 Commercial Source Control
Program........................................................................
B-VIII-5 Staffing for Source Control Efforts
.............................................................................
B-VIII-7 Residential/Public Education Outreach
...................................................................
B-VIII-7 Alternative Disposal Methods
....................................................................................
B-VIII-9
Appendices
Appendix A – Grease Interceptor/Grease Trap Maintenance
Procedure for Food Preparation Facilities
............................................... B-VIII-11 Appendix
B – Public Education/Media Releases
......................................... B-VIII-14 Appendix C –
Public Outreach Program and Schedules .............................
B-VIII-24 Appendix D - Grease Source Control Inspection
Program.......................... B-VIII-29 Appendix E - Monterey
County Fair Grease Awareness Survey.………...B-VIII-59 Appendix F -
Sanitary Sewer Attachment 2 Overflow Reports 2007…..B-VIII-240
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B-III-1
City of Salinas WDR R3-2002-0078 Attachment B Sanitary Sewer
Management Plan Part B-III Legal Authority
WDR R3-2002-0078 Requirements for Legal Authority The WDR
requirements in Attachment B - Part III Legal Authority include
legal authority to:
1. Control infiltration and connections from inflow sources,
including satellite systems.
2. Require that sewers and connections be properly designed and
constructed.
3. Ensure proper installation, testing, and inspection of new
and rehabilitated sewers and service laterals.
4. Limit fats and greases and other debris that may cause
blockages in the sewer collection system.
5. Implement the general and specific prohibitions of the
national pretreatment program under 40 CFR 403.5.
Summary of Existing City of Salinas Authority As described in
this section, the City of Salinas has adequate existing legal
authority to meet the WDR requirements for its sanitary sewer
collection system. The City under agreement receives flows from the
unincorporated Boronda community located to the northwest of the
City and a limited area of the Bolsa Knolls community located t the
north of the City. This authority derives from the City Charter,
the City Code and the City Design Standards and Specifications, and
by incorporation of all MRWPCA regulations into the City Code.
Currently, the sanitary sewer and industrial sewer requirements
are addressed in two separate chapters of the City Code. Additional
requirements are established through City Council resolution. While
the City currently has adequate legal authority to regulate and to
monitor its sanitary sewer and industrial sewer, City staff are
considered whether to develop a single comprehensive ordinance
(chapter) to address all aspects of the sanitary sewer collection
system.
Through a Regional Pretreatment Program and Regional Oil and
Grease Program, the City has historically delegated authority and
responsibility for the application and enforcement of various
aspects of the pretreatment program (source control) to the
Monterey Regional Water Pollution Control Agency (MRWPCA) under a
joint powers agreement It is anticipated the City’s relationship
with MRWPCA will continue and City staff will continue to develop
specific policies, procedures and requirements for design,
maintenance and operation of grease traps or other devices.
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City of Salinas WDR R-3-2002-0078 Attachment B – Elements of
Sewer System Management Plan
Part B-III Legal Authority
B-III-2
Existing City of Salinas Legal Authority Interagency Agreement
with MRWPCA The City of Salinas sanitary sewer collection system is
tributary to a regional treatment facility owned and operated by
the Monterey Regional Water Pollution Control Agency (MRWPCA or
Agency). In 1979, the City joined with other cities in Northern
Monterey County to adopt an interagency agreement forming
MRWPCA.
The joint powers agreement calls for MRWPCA to acquire,
construct, and operate facilities for the collection, transmission,
treatment, disposal and reclamation of sewage and wastewater for
the benefit of lands and inhabitants with their respective
boundaries. Under this agreement MRWPCA is obligated to undertake
and to implement the common power and authority of its members to
study, plan for, design, construct and operate regional wastewater
treatment facilities for the North Monterey County area. The joint
powers agreement enables MRWPCA to levy wastewater charges and fees
to fulfill its responsibilities.
City Code Chapter 36 – Industrial Waste, Wastewater Collection
and Discharge Chapter 36 of the Salinas City Code – Industrial
Waste, Wastewater Collection and Discharge regulates the City’s
sanitary sewer collection system and the industrial wastewater
system. Chapter 36 contains the following relevant regulations for
the sanitary sewer system:
Section 36-1 acknowledges that the City’s sanitary sewer
collection system is tributary to the MRWPCA treatment facility. It
states that MRWPCA implements a pretreatment program for its member
jurisdictions (including the City of Salinas).
Section 36-11 requires that all private sewage disposal system
conform with the city plumbing code currently in effect.
Section 36-12 requires that a City permit be issued for all
connection to or use of the public sanitary sewer system.
Sections 36-12.1 and 36-12.2 state that final approval for a
sanitary sewer permit is contingent upon compliance with the
requirements of the MRWPCA and that all dischargers into the
sanitary sewer must comply with all discharge requirements of the
MRWPCA.
Section 36-16 requires that design and construction of building
sewers conform to the requirements of the city plumbing code and
the City Design Standards and Standard Specifications currently in
effect at the time of installation. (Elsewhere in the City Code,
the California Plumbing Code is adopted by reference.)
Section 36-18 requires that the connection of building sewers to
the public sewer must conform to the requirements of the city
building and plumbing code currently in effect (California Plumbing
Code) and to the city design standards and standard specifications
currently in effect. All such connections must be made gastight and
watertight. Therefore,
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City of Salinas WDR R-3-2002-0078 Attachment B – Elements of
Sewer System Management Plan
Part B-III Legal Authority
B-III-3
infiltration of tree roots into a building sewer laterals are
presumed to be caused by improper installation and must be repaired
at the property owner’s cost.
Section 36-19 requires that the applicant for a building sewer
permit notify the Chief Building Official when the building sewer
is ready for inspection and connection to the public sewer. The
connection must be made during the presence and under the
inspection of the chief building official or their
representative.
Section 36-20.1 states that hazardous waste and other
unacceptable waste not permitted to be discharged into the public
sewer must be transported to a state-approved disposal site.
Section 36-20.2 prohibits discharge of any substances directly
into a manhole or other opening in the collection system other than
through an approved building sewer unless approved by the
director.
Section 36-31 requires that grease traps (grease, oil, wax and
sand interceptors) be provided when, in the opinion of the
director, they are necessary for the proper handling of liquid
wastes, sand or other harmful ingredients. All interceptors must be
of a type and capacity approved by the director and located so as
to be readily and easily accessible for cleaning and inspection.
Failure by the owner to clean and maintain the interceptors is
sufficient cause for punitive action as provided in the chapter, or
for disconnection from the industrial sewer.
City Resolution No. 11648 for Installation of Sewer Laterals
Resolution No. 11648 establishes rules and regulations for the
installation of sewer laterals in the City. Relevant rules
include:
The rules specify a minimum lateral size and requirements for
larger sizes when additional capacity is needed.
All plumbing work for sewer laterals must meet the minimum
standards of the current Plumbing Code.
Sewer laterals must be inspected and installation approved by a
City representative before they are backfilled.
Maintenance of laterals and appurtenances is the responsibility
of the property owner. Any leaks or openings that allow water
drainage or storm water to enter the system must be promptly
repaired.
Connection of storm drain facilities, such as catch basins,
sumps, downspouts, outside drains and laterals, to the sanitary
sewer system is expressly prohibited. Except with specific written
approval of the City Engineer, no yard drainage can be discharged
to the sanitary sewer. The City Engineer shall not give this
approval unless other material is in the runoff that would pollute
the water in the storm drains. In such instance, the amount of
drainage entering the sanitary sewer shall be kept to a minimum.
Industrial waste is prohibited from discharge into the sanitary
sewers, without specific written approval of the City Engineer.
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City of Salinas WDR R-3-2002-0078 Attachment B – Elements of
Sewer System Management Plan
Part B-III Legal Authority
B-III-4
Sewer laterals between the main line and the property sewer must
be constructed according to the Standard Specifications currently
in effect, including watertight joints.
MRWPCA Ordinances 92-02 and 93-03 The City of Salinas Code
expressly requires that all dischargers to the municipal sanitary
sewer system (community sewer) must comply with all MRWPCA (Agency)
requirements. The applicable MRWPCA requirements in Ordinances
92-02 and 93-03 are listed below. Ordinance 92-02 (1992)
establishes regulations for the interception, treatment and
disposal of sewage and wastewater. Ordinance 93-03 (1993) amended
certain limitations on wastewater strength provided in Ordinance
92-02.
Section 1.02 states that this Wastewater Discharge Ordinance is
the legal authority which sets uniform requirements for discharges
into the wastewater collection and treatment system of the Agency
and all tributary collection systems and enables the Agency to
comply with the administrative provisions of the Clean Water Grant
Regulations, and specifically incorporates and enforces National
Categorical Pretreatment Standards as defined in 40 CFR 403
“General Pretreatment Regulations for Existing and New Sources of
Pollution”.
This Ordinance also enables the Agency to comply with water
quality requirements set by the Regional Water Quality Control
Board of the State of California and all applicable effluent
limitations, national standards of performance, toxic and
pretreatment effluent standards, and other discharge criteria
required or authorized by state or federal law.
Section 1.03 definitions that apply to relevant discharge
prohibitions include:
- National Categorical Pretreatment Standards – any regulation
containing pollutant discharge limits promulgated by EPA in
accordance with section 307(b), (c) and 402 (b)(8) of the Federal
Act (33 U.S.C. 1347) and 40 CFR 403 “General Pretreatment
Regulations for Existing and New Sources of Pollution” which
applies to a specific category of industrial users.
- National Pretreatment Standard, Pretreatment Standards– any
regulation containing pollutant discharge limits promulgated by EPA
in accordance with section 307(b), (c) and 402 (b) (8) of the
Federal Act (33 U.S.C. 1347) incorporated in 40 CFR 403 “General
Pretreatment Regulations for Existing and New Sources of Pollution”
which applies to industrial users including prohibitive discharge
limits pursuant to 40 CFR 403.5.
Section 2 contains general and specific prohibitions to prevent
pollutants from being introduced into the regional treatment plant
or community sewer. The prohibitions include:
- Any solid or viscous pollutants in amounts that would cause
obstruction to the flow in the plant resulting in interference,
- Any wastewater containing toxic pollutants in sufficient
quantity, either single or by interaction with other pollutants, to
exceed the limitation set for in a National Categorical
Pretreatment Standards. A toxic pollutant includes, but is not
limited to, any pollutant identified in Section 307(a) of the
Federal Act.
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City of Salinas WDR R-3-2002-0078 Attachment B – Elements of
Sewer System Management Plan
Part B-III Legal Authority
B-III-5
Section 2.03 and 2.04 state that storm water, groundwater, rain
water, street drainage, subsurface drainage or yard drainage, or
unpolluted water shall not be discharged through direct or indirect
connections to a community sewer unless a permit is issued by the
Agency. The Agency may approve such discharge only when no
reasonable alternative method of disposal is available.
Section 2.07 contains limitations on the use of garbage grinders
except from wastes generated in preparation of food normally
consumed on the premises, or where the user has obtained a permit
for the specific use from the Agency. Such grinders must shred the
waste to a degree that all particles will be carried freely under
normal flow conditions in the community sewer.
Section 2.10.2 prohibits any person from discharging any
wastewater containing oil and grease of animal, vegetable,
petroleum or mineral origin in such quantities to cause or to
contribute significantly to: 1) disruptions of sewer lines and
other collection system components; 2) interference with treatment
plant operations, or 3) exceedances of plant NPDES discharge
limitations. Significant dischargers of oil and grease shall
implement best practicable technologies for reducing the oil and
grease content of their discharges.
The MRWPCA also developed guidance to explain the oil and grease
limitations in the Ordinance 93-03 amendment of 92-02, as
summarized below.
- For Polar Oil and Grease (animal or vegetable): o Oil/grease
concentration less than or equal to 300 mg/L – no action
required.
o Oil/grease concentration greater than 300 mg/L but less than
or equal to 450 mg/L – MRWPCA will increase monitoring or require
self-monitoring of the waste stream to determine if a trend exists.
The industrial or commercial facility will be required to implement
source control or waste minimization measures.
o Oil/grease concentration greater than 450 mg/L is a
significant discharge. The industrial or commercial facility is
required to self-monitor the waste stream, install pretreatment
equipment using Best Practicable Technology (BPT), implement
measures to reduce the specific pollutant level to below 450 mg/L,
or cease the process that is causing the excessive animal/vegetable
oil and grease concentration.
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City of Salinas WDR R-3-2002-0078 Attachment B – Elements of
Sewer System Management Plan
Part B-III Legal Authority
B-III-6
- For Non-Polar Oil and Grease (petroleum or mineral): o
Oil/grease concentration less than or equal to 100 mg/L – no action
required.
o Oil/grease concentration greater than 100 mg/L but less than
or equal to 150 mg/L – MRWPCA will increase monitoring or require
elf monitoring of the waste stream to determine if a trend exists.
The industrial or commercial facility is required to implement
source control or waste minimization measures.
o Oil/grease concentration greater than 150 mg/L is a
significant discharge. The industrial or commercial facility will
be required to self –monitor the waste stream, install pretreatment
equipment using Best Practicable Technology (BPT), implement
measures to reduce the specific pollutant level below 150 mg/L, or
cease the process that is causing the excessive petroleum/mineral
oil and grease concentration.
Section 2.10.3 requires that all National Categorical
Pretreatment Standards, upon their promulgation, shall apply in any
instance where they are more stringent than those in the
Ordinance.
Section 2.10.4 requires that all wastes not permitted to be
discharged into the community sewer must be transported to a state
approved disposal site.
Section 2.11 requires that all new sewers and connections to the
community sewer shall meet all design requirements of the public
entity member of the Agency having area jurisdiction in questions,
pursuant to the applicable Uniform Pluming Code adopted by said
member, and shall also meet all design requirements as may be
established from time to time by the Agency Engineer.
Article 4 of the Ordinance specifies requirements for wastewater
discharge permits for industrial and commercial users. Permits
address wastewater characteristics and requirements, charges and
fees, requirements for installation of inspection and sampling
facilities; pretreatment requirements; specifications for
monitoring programs, reporting and recordkeeping requirements.
Article 4.07 gives the Agency the authority to inspect the
facilities of any user to ascertain whether the purpose of the
Ordinance is being met and all requirements are being complied
with, and to conduct any sampling or metering operations as
necessary.
Section 4.08 requires that users shall make wastewater
acceptable under the limitations established by the Ordinance
before discharging into any community sewer. Any facilities
required to pretreat wastewater to a level acceptable to the Agency
shall be provided and maintained at the user’s expense. Detailed
plans showing the pretreatment facilities and operating procedures
shall be submitted to the Agency for review, and shall be approved
by the Agency before construction of the facility. The user is
responsible for modifying the facilities as needed to continue to
meet the requirements of the Ordinance. Any subsequent changes in
the pretreatment facilities or method of operation shall be
reported to and be approved by the Agency.
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City of Salinas WDR R-3-2002-0078 Attachment B – Elements of
Sewer System Management Plan
Part B-III Legal Authority
B-III-7
Articles 6 and 7 provide for enforcement and abatement authority
for the Agency to enforce all provisions of Ordinances 92-02 and
93-03, and to abate any public nuisance, violation of the
ordinance, damage to the regional facility, and allows the Agency
to correct violations and recover the costs from the user.
MRWPCA Regional Grease Program MRWPCA, on behalf of its member
jurisdictions including the City of Salinas, has a Regional Grease
Program. The purpose of the Regional Grease Program is to reduce
the amount of grease entering the sanitary sewer system from food
serving establishments. The program incorporates the need for
proper cleaning and maintenance of grease interceptors and grease
traps located at such establishments. The report section on Part
B-VIII Source Control Program discusses the City’s current and
proposed source control program for grease, fats and oils.
MRWPCA authority for the Regional Grease Program is derived from
Ordinance 92-02 and its 93-03 amendment. City of Salinas City Code
Chapter 36 expressly requires that all users within the City comply
with all MRWPCA regulations. MRWPCA reviews grease interceptors and
traps proposed on building plans.
The MRWPCA Source Control Division is responsible for ensuring
that every industry and commercial business activity in the MRWPCA
service area is providing the proper pretreatment for their
wastewater as mandated by the Regional Water Quality Control Board,
Environmental Protection Agency as well as MRWPCA Sewer Use
Ordinance 92-02.
The following requirements are posted by MRWPCA for “Grease
Interceptor/Grease Trap Maintenance Procedure for Food Preparation
Facilities.”
Grease interceptors shall be completely pumped (i.e., dry pumped
removing the grease mat, liquids, sludge and wash down material
from the interior walls).
Grease traps shall be completely pumped (i.e., dry pumped
removing the grease mat, liquids, and solids from walls, screens,
baffles and air relief chambers).
Any problems/damage with the interceptor/trap must be reported
to the business manager/owner and the MRWPCA Source Control
Division (e.g., missing or broken baffles, screens, and pipes).
Discharge of wastes pumped from a grease interceptor/trap back
into the sanitary sewer or the clean interceptor/trap is
prohibited.
Bacteria products used in the maintenance of interceptors or
traps must be pre-approved by the MRWPCA. Such products are
addressed in a 1995 interagency agreement on the use of grease trap
and grease interceptor additives signed by MRWPCA, the Cities of
Santa Cruz and Watsonville, the Santa Cruz County Sanitation
District, and the Carmel Area Wastewater District.
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City of Salinas WDR R-3-2002-0078 Attachment B – Elements of
Sewer System Management Plan
Part B-III Legal Authority
B-III-8
The MRWPCA website also provides educational information for
users on how a grease trap operates and on cleaning grease
traps.
City of Salinas Design Standards & Standard Specifications
Detailed information on design standards and standard
specifications for sewer system improvements is contained in the
City’s Design Standards and Standard Specifications. These Design
Standards and Standard Specifications must be complied with as
specified in Chapter 36 of the City Code.
The City Code also incorporates, by reference, the California
Building Code and the California Plumbing Code. These codes apply
to all public and private improvements.
The City’s Design Standards and Standard Specifications
cover:
Criteria for design flows and sewer sizing.
Minimum sewer sizes of 8-inches for public sewers, except that
6-inch may be approved for lines with ultimate maximum of twenty
single-family units or less.
Criteria for sewer slopes, alignments, depths, and manhole
spacing.
Requirements for lateral connections to sewer mains in
accordance with Standard Plans 24, 30 and 33. Criteria also include
minimum lateral size of 4-inches, and requirement for a lateral
cleanout at property line.
Requirements for manholes in accordance with Standard Plans 22,
23 and 24.
No roof drains or storm water inlets shall be connected to
sanitary sewers.
Upon completion of 6-inch and greater sewers within public
easements and right-of-way, all sections of pipe must be checked
with television equipment and air tested prior to acceptance by the
City. The purpose of the checking and testing is to determine leaks
and also prevent infiltration.
The City’s Design Standards and Standard Specifications were
updated in 2004 to reflect current municipal engineering practices
and metrication. Future updates will consider other appropriate
changes to the design standards that may be needed to comply with
and/or provide guidance for future local legislation.
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B-IV-1
City of Salinas WDR R3-2002-0078 Attachment B Sanitary Sewer
Management Plan Part B-IV Measures and Activities WDR Requirements
for Measures & Activities The WDR requirements in Attachment B
– Part IV Measures & Activities require that the Sanitary Sewer
Management Plan address the element listed below, as appropriate
and applicable to the sewer system, and identify the person or
position in the organization responsible for each element.
A) Provide adequate operation and maintenance facilities and
equipment.
B) Maintain an up-to-date map of the collection system showing
all gravity line segments and manholes, pumping facilities,
pressure pipes and valves, and storm water conveyance
facilities.
C) Maintain relevant information to establish and prioritize
appropriate Sewer System Management Plan activities, and identify
and illustrate trends in overflows, such as frequency and
volume.
D) Routine preventive operation and maintenance activities by
staff and contractors; including a system for scheduling regular
maintenance and cleaning of the collection system with more
frequent cleaning and maintenance targeted at known problem areas
as well as a tracking system for work orders.
E) Identify and prioritize structural deficiencies and implement
short-term and long-term rehabilitation actions to address each
deficiency. This shall include a rehabilitation plan including
schedules for the entire system. Among the provisions that should
be specified is the need to direct rehabilitation and replacement
at sewer pipes which are at risk of collapse or prone to more
frequent blockages due to pipe defects. The program should also
include regular visual and video inspection of sewer pipes and a
system for assessing and ranking the condition of sewer pipes.
Finally, the rehabilitation and replacement plan should include a
financial plan that properly manages and protects the
infrastructure assets.
F) Provide training on a regular basis for staff in collection
system operations, maintenance, and monitoring and determine if
contractors’ staffs are appropriately trained.
G) Provide equipment & replacement parts inventories,
identification of critical replacement parts.
H) Establish an implementation plan and schedule for a public
education outreach program that promotes proper disposal of grease
and fats.
I) Establish a plan for responding to overflows from private
property that discharge to public right of ways and storm drains,
to prevent discharges to surface waters and storm drains.
J) Develop a plan and schedule for providing an analysis of
alternative methods of disposal for grease and fats, and an
implementation plan and schedule for providing adequate disposal
capacity for grease and fats generated within the sewer system
service area. This plan shall include an evaluation of the
feasibility of using sludge digesters at the regional Agency
wastewater treatment plan for grease disposal and treatment,
recycling, rendering, and other disposal alternatives.
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
Management Plan
Part B-IV Measures and Activities
B-IV-2
Maintenance Facilities, Equipment, and Replacement Parts (Items
A and G) The City’s Maintenance Services Department, under the
direction of the Maintenance Services Director, is responsible for
operation and maintenance of the City’s sanitary sewer collection
system. The City’s Wastewater Manager is the lead person to plan
and implement these responsibilities.
Current City staffing for operation and maintenance of the
sanitary sewer system includes 8.25 full time equivalent (FTE)
employees. The employees may also perform other functions for the
storm sewer and industrial waste systems. The position allocations
and duties for the sanitary sewer system are as follows:
Wastewater Manager (0.5 FTE) - Provide oversight of Division
activities and manage budget.
Water Resources Planner (0.5 FTE) – Provide support , planning
assistance and training
Wastewater Crew Supervisor (0.5 FTE) – Supervise work crew and
maintenance activities.
Public Service Maintenance Worker IV (0.5 FTE) – Lead worker,
journey level position.
Pump Mechanic (0.75 FTE) – Sanitary sewer lift station pump
mechanic.
Public Service Maintenance Worker III (1.75 FTEs) – Equipment
operator.
Public Service Maintenance Worker II (3.75 FTEs) – Journey level
maintenance worker.
The City has adequate facilities and equipment to maintain the
sanitary sewer collection system. The Maintenance Services
Department operates from the City’s Corporation Yard on Work Street
at John Street, and the City’s TP1 Site off Hitchcock Road (site of
the former City wastewater treatment plant). Maintenance equipment
is stored at both locations.
Major equipment owned by the City that can be utilized for sewer
system operation and maintenance includes:
Sanitary Sewer Program – 6 pickup trucks, 3 sewer vactor trucks,
1 lift truck, 1 TV van, and 5 portable (towable), generators
Storm Drain Sewer – 1 vac-all (10 cu. yd. capacity vacuum
truck)
Industrial Waste – 2 tractor, 1 spray rig, 3 pickup trucks, 1
small boat and trailer to access aeration motors on the influent
treatment pond.
Street Sweeping – 1 pickup, 4 sweepers
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
Management Plan
Part B-IV Measures and Activities
B-IV-3
The City maintains 5 portable towable diesel powered generators
to provide emergency power to sanitary sewer lift stations not
equipped with permanent on-site electrical generators. This gives
effective coverage of all sanitary lift stations and reduces the
potential for overflows during power outages.
The City keeps an inventory of key replacement parts for the
sewer lift stations, so breakdowns and malfunctions can be repaired
quickly to avoid potential overflow situations. A spare motor
controller, air compressor, alarm dialer, air lines and misc. minor
parts are kept in inventory for repairs to lift stations. A lift
station maintenance truck with an overhead lift boom and power
winch is used to carry a full complement of tools and minor repair
parts. A backup 30 horsepower pump motor is kept for emergency
backup of the highest flow station at Lake Street. Spare manhole
risers and covers are kept in inventory for repairs in the streets.
Emergency contact numbers for local parts vendors and contractors
are kept for emergency response to pipeline and other system
repairs
The City owns the necessary equipment to respond to most
overflow situations. This equipment includes vacuum trucks,
hydro/vac flushers, pumps, temporary bypass hoses, and portable
generators. The City also maintains files, agreements, 24-hour
contacts, and informal agreements with many contractors and
businesses that can be called in response to a major event.
The City keeps key materials on-site at the City Yard to respond
quickly to overflows. Sandbags and sandbagging material,
absorbents, absorbent booms and pads are kept for containment and
cleanup. Pipeline plugs for pipe sizes of 6 inches to 16 inches are
kept on site for containment and repairs. A 6 inch pump and
flexible hosing are kept in inventory for local bypass operations
or pumping of overflows back into the sanitary sewer.
Map of Collection System (Item B) The WDR calls for maintaining
an up-to-date map of the collection system showing all gravity line
segments and manholes, pumping facilities, pressure pipes and
valves, and storm water conveyance facilities. The City has various
maps showing this information, although it currently is not all
shown on the same set of maps. The City continues to consider the
future implementation of a GIS database and mapping capability to
display all the relevant information on the same maps.
The City currently has several sources of mapping for the
sanitary sewer collection system. The following maps are maintained
by the City’s Development and Engineering Services Department,
under the direction of the City Engineer:
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
Management Plan
Part B-IV Measures and Activities
B-IV-4
Master plan map showing sanitary sewer trunk lines and sewers
10-inches and greater in diameter, City-owned sewer pump stations
that are fed by the master plan pipe system, and sewershed
boundaries for the master plan lines. This AutoCAD map was done for
the City’s 1998 Sanitary Sewer Master Plan.
System-wide wall maps showing sanitary sewers of all sizes and
manhole locations (paper maps, not electronic). These wall maps are
displayed in the City’s Development and Engineering Services office
at City Hall and the Wastewater Division Office at the Maintenance
Services Division Corporation Yard. These maps are also reproduced
in binders for field use in the sewer maintenance trucks and
response vehicles. Storm sewer maps are maintained for recovery
response for sewer overflows that reach the local storm system.
The wall maps are marked up periodically to reflect new sewers
and changes in existing sewers, but do not reflect the most recent
developments in Salinas. Complete system maps are available from
as-built plans not yet incorporated into the current wall maps. The
maps are being discussed for updating with a GIS system or other
methodology, and will then provide all required information on one
set of maps.
Improvement plans for sewers constructed in new development. The
City Development and Engineering Services Department maintains
copies of all sewer plans upon completion of construction and
acceptance by the City. Subdivision improvement plans are filed by
subdivision number.
The City is still pursuing the development of a GIS database and
tracking system to identify municipal hot spot areas, sanitary
sewer lines and manholes, storm system lines and storm system
facilities (catch basins, retention ponds ), as well as
jurisdictional inlets and outfalls. Existing municipal maintenance
and overflow information may be incorporated into the database and
tracking system. The computerized system will be a useful tool for
sewer system asset management purposes, as well as tracking sewer
maintenance activities. This will be a multi-year phased process to
complete the comprehensive database and mapping. Detailed
information will also be incorporated over time as the management
program is implemented.
The database is expected to be linked to City street maps and
other mapping information and will be able to provide comprehensive
up-to-date maps of the sanitary sewer collection system and other
relevant information. The system will provide a valuable tool for
City staff to more easily identify trends and hot spot locations;
and better plan line repair and replacement to avert unintentional
discharges to the storm drain system at old and/or damaged pipe
locations.
Due to funding limitations and the layoff of key personnel in
2005 the development of a GIS database/tracking system has not yet
been implemented but is under consideration for future development.
It is expected to take up to 5 years to fully implement, perhaps
longer to include minor facilities or less critical information,
depending on funding limitations. The information
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
Management Plan
Part B-IV Measures and Activities
B-IV-5
to be included in the database/tracking system will be
prioritized and the implementation will occur in priority order, so
that the most important information is available sooner. The
responsibility for developing a GIS database/tracking system or by
other methodology will be a joint effort of the Development and
Engineering Services Department, Information Systems Department and
the Maintenance Services Department.
Prioritization of Activities (Item C) The main goal of the Sewer
Management Plan that is required by the WDR is to prevent overflows
and to provide a plan and schedule for measures to be implemented
to prevent overflows. Activities proposed by the City in the Sewer
Management Plan will be prioritized based on their usefulness and
effectiveness in meeting this goal. The City will focus its efforts
on those activities that are most effective in preventing
overflows.
Objectives to be considered in prioritizing activities will
include:
Prevent any discharges from reaching surface waters. Surface
waters that may be affected by discharges from the City include:
Santa Rita Creek, Gabilan Creek and tributaries, Natividad Creek
and tributaries, Markley Swamp, Reclamation Ditch 1665, and the
Salinas River.
Prevent discharges from reaching the storm drain system and
completely contain and clean any discharges that do reach the storm
drain system before such discharges reach surface waters.
Prevent dry weather overflows from public sewers.
Prevent wet weather overflows from public sewers.
Prevent overflows from private laterals.
The City’s drinking water supply is solely from groundwater
wells maintained by the California Water Service Company and Alco
Water Service. This supply is not impacted by potential
overflows.
The City maintains sanitary sewer overflow records in accordance
with Regional Water Quality Control Board requirement under WDR
R3-2002-0078. This information includes but is not limited to
location, date, time, quantity of spill and cleanup activities. As
this comprehensive information is collected over time, it can
assist in illustrating trends in overflows, such as problem
locations, frequency, and volume. The information collected to date
has been useful in formulating the City’s “Hot Spot” program that
is discussed in the next section.
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
Management Plan
Part B-IV Measures and Activities
B-IV-6
Preventive Operation & Maintenance Activities (Item D) The
City’s maintenance program addresses the following elements to
various degrees, although in an informal manner:
Predictive maintenance – tracking life span and scheduled parts
replacement of key facilities;
Preventive maintenance – identifying and fixing system
weaknesses which, if left unaddressed, could lead to overflows;
Corrective maintenance – fixing system components that are
functioning but not at 100% capacity/efficiency, e.g., partially
blocked lines;
Emergency maintenance – reactive maintenance, overflows,
equipment breakdowns.
As part of the Sewer System Management Plan implementation, the
City will be developing a more formalized Operation and Maintenance
Plan for the sanitary sewer collection system. This plan will
formalize current City activities that are passed along by
long-time senior staff but are not always in writing. The
maintenance plan will address the following components identified
in the WDR:
System for scheduling regular maintenance and cleaning of
collection system.
System for identifying known problem areas and scheduling more
frequent cleaning at these locations. Priority has been given to
identifying and servicing areas requiring increased maintenance
over routine maintenance activities. This has resulted in an
increased hotspot maintenance list. The City has incorporated more
efficient cleaning methods that is anticipated to free more time
for routine work.
Tracking system for recording maintenance activities. The City
currently uses service request slips which are completed in
response to requests for service by residents or other departments.
Routine maintenance is conducted as described below according to
schedules established by the Wastewater Manager and documented on
maintenance forms developed by the Department. The City is still
considering the development of a database from GIS or other
methodology to develop as part of a Sanitary Sewer Management Plan
to use for tracking maintenance activities and possibly for
generating work orders as funding and resource become available to
pursue this option.
Procedures for coordinating with contractors responsible for
sewer system collection system cleaning and maintenance. The City
does not typically contract cleaning and maintenance of the
collection system. Contracting is done only for the purpose of
supplementing the ongoing maintenance effort when required or
because of the need for specialized equipment not in the City’s
inventory. Contract work is accomplished with ongoing oversight
from City staff.
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
Management Plan
Part B-IV Measures and Activities
B-IV-7
Current City maintenance activities are summarized below,
followed by a discussion of some preliminary activities under
consideration for the sanitary sewer management plan. Current
maintenance procedures may be subject to change as more effective
measures may be identified while developing and implementing the
sanitary sewer management plan.
City staff currently conducts regular maintenance of the City’s
sewer pump stations. Appendix A lists the sewer pump stations. As
indicated in Appendix A, 4 stations have backup power. In addition,
the City maintains 5 portable (towable) diesel powered generators
to provide emergency power to those stations not equipped with
permanent on-site electrical generators. This gives effective
coverage of all sanitary lift stations and reduces the potential
for overflows during power outages. Throughout 2006 the City worked
to develop plans for installation of backup generators at three
additional sanitary sewer lift stations. The generator
installations began in 2007 with expected completion in March 2008.
Priority is given to lift stations with the highest flow potential
reserving towable generators for lower flow stations that present
less of a threat for overflow during the loss of power to the
station. To insure redundancy in the system lift stations retain
towable generator hookups in the unlikely event of a permanent
generator failure.
The 4 highest flow sewer lift stations are inspected daily. All
other sewer lift stations are inspected two to three times weekly
depending on work schedule. The City has a pump maintenance
mechanic log book to log maintenance activity at the sewer pump
stations. Routine maintenance includes but is not limited to:
inspection of electrical panels, pump and level controls, air
compressors, wet well and dry well conditions and pump motor
operation. Site visits for maintenance activities are logged on the
example worksheet provided below. This worksheet also includes
maintenance visits performed at storm water lift stations and on
miscellaneous small pumps throughout the City. In the absence of
the pump mechanic other maintenance personnel are cross trained to
address any lift station problems. Appendix B provides an example
of the pump maintenance inspection record and maintenance
checklist.
City staff conducts an extensive program of sewer cleaning and
inspection that has generally focused on known problem locations,
which are discussed further below. The Departments goal is to
service hot spot problem areas approximately 3 days of each week,
while general collection system maintenance is to be conducted 2
days weekly. Throughout the year priority is given to areas
requiring increased maintenance Other maintenance may include
response to problems, citizen complaints, or construction projects.
A field worksheet is kept by maintenance staff to record completed
maintenance activities. During 2007, City staff cleaned
approximately 1,219,055 LF (the equivalent of 230 miles) of
sanitary sewer pipe.
Appendices to Part B-IV Measures and Activities, provides
examples of the City’s daily sewer maintenance log, sewer manhole
inspection checklist, and an example monthly summary report of
Wastewater Division activities for December 2007.
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
Management Plan
Part B-IV Measures and Activities
B-IV-8
The City’s Wastewater Manager maintains “Hot Spots” Lists of
problem areas needing additional maintenance and cleaning. This
list, developed over a long period of time, identifies problem
locations for blockages that may potentially lead to overflows.
There are two lists based on the required frequency of maintenance
to avoid blockages – a monthly list and a quarterly list. The
locations on each list are grouped by area – East Salinas, West
Salinas, North Salinas and South Salinas. The list shown is the
current list but is for example purposes only and is a dynamic list
that is revised as needed. The lists show the specific locations to
be serviced, and the length of pipe. Appendix F contains the
monthly “Hot Spots” List. Appendix G contains the quarterly “Hot
Spots” List. The hot spot list is updated regularly as the need for
additional maintenance is identified.
City maintenance staff (2-person crew) currently conducts
manhole checks one or two days per week in problem areas. The
purpose is to open manholes in hot spot areas to clean slow running
pipes or blockages before overflows can occur. The majority of the
problem locations are in the east side of the City, primarily in
smaller 6-inch pipes. This has proven to be effective activity in
identifying potential system issues allowing for early resolution
of identified problems.
The City’s Wastewater Division staff, which includes Sanitary
Sewer, Storm Sewer, Street Sweeping and Industrial Waste Facility
personnel, participate in plan reviews for new construction and
improvement projects to ensure compliance with the City’s sanitary
sewer requirements. The City’s Development and Engineering Services
staff also review plans for compliance with all City requirements
for proper design of new sewers and connections and prohibitions on
inflow sources, as well as inspect construction projects to ensure
that plan provisions are implemented.
As part of a System Management Plan, the City has formalized a
maintenance plan through its hotspot program that will address
overflows, accommodate the needs of the City, and rotate through
the City over time. The City’s goal is to provide 2 days of routine
maintenance each week, and 3 days of hot spot maintenance. Staff
has generally deferred to hotspot and higher maintenance areas with
available resources to more effectively address the programs goal
to reduce or eliminate overflows. As reported in the 2005 annual
report the City planned for a third hydro/vacuum truck for sanitary
sewer and storm sewer maintenance. In 2006, the City funded and
purchased a new hydro/vaccum truck which was delivered in March
2007. Staff is working with new cleaning methods that may reduce
the overall time needed to address higher maintenance areas and
with the addition of the new truck may allow the development of a
more prudent routine program.
For routine maintenance, City crews will rotate through the City
by area with a wall map and field maps to show areas covered.
Routine maintenance will include hydro-flushing sewer lines in the
area, and pressure wash manholes if needed. During all maintenance
wash water is kept
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
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Part B-IV Measures and Activities
B-IV-9
within sanitary sewer system and conveyed to the wastewater
treatment plant. Pipelines and manholes are vacuumed out if
necessary to prevent overflows that might reach storm drain system.
All areas are prioritized for frequency of maintenance, e.g., some
areas historically have few problems while others require more
frequent maintenance.
As discussed earlier in this section under Collection System
Map, the City’s goal is a collaborative effort by the City’s
Development and Engineering Services, Information Systems and
Maintenance Services Departments to establish a database/tracking
system that will include the sanitary sewer system. Contract
services may be used for major field work needed to complete the
project. Existing municipal maintenance and overflow information
may be incorporated into the database/tracking system. The database
will include completed maintenance work and a record of problem
areas to facilitate maintenance planning and oversight.
When established the database is expected to be linked to City
street maps and other mapping information and will be able to
provide comprehensive up-to-date maps of the sanitary sewer
collection system, maintenance efforts, and overflows. A GIS
database/tracking system is still under consideration for
development and is anticipated to take several years to fully
implement. Ability to develop GIS capability has been impacted by
budgetary and staffing shortages with the layoff of key personnel
in 2005. Although this remains a future goal of the program there
is no current activity in this area. The system will provide a
valuable tool for City staff to plan for preventive maintenance;
more easily identify trends and hot spot locations; and better plan
line repair and replacement projects.
The City evaluated appropriate actions to address
infiltration/inflow from manholes and manhole covers that are in
flow lines or low areas. This condition affects a small number of
locations as most manholes are near the center of streets as
rainwater drains away from the covers and is not considered to
offer infiltration of significant concern. Applicable locations and
actions will be assessed during routine maintenance activities and
steps taken to seal or reduce the potential for infiltration/inflow
to the sewer system at affected locations. To date, the City has
placed manhole lids with watertight lids in low areas of water
retention such as the Carr Lake storm water detention area to
reduce infiltration/inflow. The City also routinely replaces broken
lids and raises manhole lids to grade. A flow study with flow
meters installed at various locations within the sanitary sewer
system were installed in strategic locations in FY 05/06 and were
recently re-installed to capture a portion of the 2007 wet weather
season in an effort to determine system infiltration and
inflow.
Rehabilitation Plan (Item E) The City has made an extensive
effort to identify and correct collection system deficiencies that
may result in system overflow and downstream pump station failure.
The City has been conducting field investigations of the sewer
collection system since the 1980’s in order to
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
Management Plan
Part B-IV Measures and Activities
B-IV-10
identify rehabilitation needs. In the late 1980’s and early
1990’s, the City smoke tested the sewer collection system in East
Salinas for evidence of infiltration/inflow, since this area had a
higher incidence of older pipes and blockage problems.
In 1998, the City conducted video inspection for all 18-inch and
larger pipes that had not been recently inspected, and compiled a
database of inspection logs and videotapes. The City also hired a
consultant to evaluate major concrete pipes and identify those
prone to collapse. The resulting field data was used in the 1998
Sanitary Sewer Master Study.
In 1997-98, the City contracted for a comprehensive master plan
study of the major components of the sewer collection system. The
1998 Sewer Master Plan Study updated the City’s 1992 Sanitary Sewer
Master Plan that had been an update of the 1972 Sewage and Drainage
Survey. The 1998 Master Plan included all sanitary sewer trunk
lines and sewers 10-inches and greater in diameter and City-owned
sewer pump stations that are fed by the master plan pipe system.
The master plan investigated deficiencies and identified necessary
improvements for the sanitary sewer system. The master plan
findings, in conjunction with the field data on the existing system
conditions, were used by the City to formulate and prioritize
capital improvements projects to correct existing deficiencies and
provide for future growth.
The Master Plans included flow monitoring during dry and wet
weather periods for calibration of model flows. The City does not
currently conduct routine flow monitoring, other than for the
master plan updates or special project applications. Flow
monitoring of the entire collection system is conducted at the
Monterey Regional Water Pollution Control Agency’s Salinas Pump
Station. The City began a limited flow monitoring program in late
2005 in response to infiltration inflow concerns and was ongoing in
2006 and has been extended to include the several wet weather
months in 2007. As the Sanitary Sewer Plan is implemented, other
flow monitoring needs will be identified.
Since 1999, the City has been implementing Phase 1 of the
recommended sewer system improvement projects, as shown in the
following table.
Phase 1 for Sanitary Sewer Rehabilitation/Replacement of
Deteriorated Pipes and Pump Stations City
Project No.
Street Location
Type of Project
Diameter (inches)
Length (feet)
Estimated Cost
Status as ofJanuary
2008 Pipe Projects Completed
9619 Kipling Sewer Trunkline Replacement -
Direct Bury 42 8,300 $4,131,000 Completed
9846 Davis Road Lateral “D” Replacement -
Direct Bury 48 975 $456,000 Completed
9846 Davis Trunk System Replacement -
Direct Bury 54 12,000 $6,019,000 Completed
9847 Blanco Sewer Pipe Liner 24, 30 4,125 $860,000 Completed
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
Management Plan
Part B-IV Measures and Activities
B-IV-11
Phase 1 for Sanitary Sewer Rehabilitation/Replacement of
Deteriorated Pipes and Pump Stations City
Project No.
Street Location
Type of Project
Diameter (inches)
Length (feet)
Estimated Cost
Status as ofJanuary
2008 Trunk System
9852-A Blanco Sewer
Trunk – E. Blanco Road
Replacement– Direct Bury 33 8,400 $3,327,000 Completed
9852-C W. Alisal Street Sewer Pipe Liner 18, 24 8,400 $1,641,600
Completed
9852-D
W. Blanco-Iverson-Romie
Lane Sewer System
Pipe Liner 18, 21 7,200 $1,339,000 Completed
9852-E S. Sanborn Road Sewer
System Pipe Liner 18, 24, 33 4,200 $1,244,000 Completed
Subtotal Pipe Projects Under Construction 53,600 $19,017,600
Under Construction
9850 W. Rossi Trunk System Replacement–
Direct Bury 42, 48 5,000 Combined with 9852-b
Completed March 06
9852-B Bridge Street Sewer System Replacement-
Direct Bury 36, 48 3,300 $7, 500,000 Completed March 06
Subtotal Pipe Projects Under Construction/Design 8,300
$7,500,000
Under Design
9738 W. Laurel Sewer System Pipe Liner 10, 12 5,600 $549,000
Under Study
9125 Kern Street Sewer System Replacement-
Direct Bury 8 1,600 $646,000 Completed
2006 Subtotal Pipe Projects Pending 7,200 $1,195,000
Total for All Pipe Projects 69,100 $27,712,600 Pump Station
Projects
9363, 9891
Pump Station Improvements
Stations at Carpenter
Hall, TP No. 2, Santa Rita
NA NA $1,221,000 Completed
9803 Pump Station Repair Carpenter Hall Pump Station NA NA
$310,000 Completed
9117 Pump Station
Backup Generators
Airport, Mill Lake, Las
Casitas Pump Stations
NA NA $525,365 Completion March 2008
Pump Station Flow Meters
Airport, Mill Lake, Las
Casitas Pump Stations
NA NA $28,000 Completion May 2008
Manhole Rehabilitation
Romie to South Main
sewer trunkline
NA NA $161,000 Completed 2007
Total for All Pump Station Projects $2,245,365
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
Management Plan
Part B-IV Measures and Activities
B-IV-12
Phase 1 for Sanitary Sewer Rehabilitation/Replacement of
Deteriorated Pipes and Pump Stations City
Project No.
Street Location
Type of Project
Diameter (inches)
Length (feet)
Estimated Cost
Status as ofJanuary
2008 GRAND TOTAL FOR ALL PHASE 1 SEWER PROJECTS $30,118,965
Key milestones of the Phase 1 rehabilitation program
include:
To date, construction has been completed for Phase 1
replacement/rehabilitation projects for 61,900 LF of sewer pipe at
a total cost of approximately $27.7 million, as well as major pump
station improvement projects of $1.9 million.
Projects currently under design, include an additional 5,600 LF
of pipe at an estimated cost of $549,000.
Design plans were completed in 2007 for improvements to lift
stations to include backup power generators at a revised estimate
from 2005 of $525,365.
In 2006 the City identified the deteriorated condition of
manholes on the E. Romie Lane and South Main Street sewer trunk
line and completed 60 percent of rehabilitation to approximately 16
manholes at a cost of $161,000.00. The project reached 100 percent
completion in 2007.
In addition to completing the Phase 1 Rehabilitation and
Replacement Projects, the City is planning for Phase 2 as part of
the development of the Sewer System Management Plan. Completion of
Phase I neared completion in 2006. Phase 2 of the sewer replacement
and rehabilitation program, may include the following
activities:
System-wide pipeline inspection that will address smaller sewers
that were not covered in the 1998 work.
Development of a Phase 2 CIP to identify required replacement
and rehabilitation projects based on field inspection data,
sanitary sewer master plan recommendations, and hot spots
identified by City staff.
Prioritization of Phase 2 CIP projects and costs, implementation
schedule for design and construction, and necessary funding.
The City has provided funding for sanitary sewer system
operation, maintenance and improvement projects, even with its many
other funding responsibilities for the health and safety needs of
its citizens. In 1994, the City first applied a 15 percent sanitary
sewer surcharge as a funding mechanism to assist in upgrading the
sanitary sewer system. This was the first sewer surcharge in the
City’s history, but was not sufficient to meet sewer system upgrade
needs, since revenues from the surcharge were also needed to comply
with NPDES storm water quality requirements that began in the same
timeframe.
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
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Part B-IV Measures and Activities
B-IV-13
In response to these funding needs, the City implemented a storm
sewer fee to fund the NPDES storm water program requirements in
order to free up all sanitary sewer surcharge revenues for sewer
system improvements. To provide a higher level of funding to more
quickly implement sewer system improvements, the City also
increased the sanitary sewer surcharge beginning with the June 1998
MRWPCA billings and issued municipal bonds that were dedicated for
this purpose. The Sanitary Sewer Fund revenues are allocated to
sewer system inspection, cleaning, spill minimization and cleanup,
and repair and replacement projects.
In late 2002, the City was forced to replace the storm sewer fee
with gas tax revenues, in response to a legal challenge from the
Howard Jarvis Taxpayers Association as not meeting the requirements
of Proposition 218. Gas tax revenues will be used for the NPDES
Storm Water Program until a viable permanent funding source can be
identified. In the meantime, the City is deferring street
improvements that would otherwise have been funded from the gas
tax. However, the sanitary sewer program has not been impacted.
Due to the ongoing recession exacerbated by the State budget
shortfalls and subsequent raiding of County/local funds, the City
experienced a severe budget crisis resulting in major overall
cutbacks in overall programs and staff in 2005. This budget crisis
began in FY 02-03, and continued through 2005 . The significant
funding cuts continue to impact all General Fund service support
areas; however, no cutbacks are anticipated for the completion of
Phase 1 sanitary sewer system programs. The Sanitary Sewer Fund
revenues from the current funding sources have been dedicated for
these purposes.
Funding for Phase 2 of the sanitary system programs will need to
be identified and obtained. It is anticipated that system operation
and maintenance would continue to be funded from sanitary sewer
surcharge revenues. Depending on the sanitary sewer improvement
projects identified for Phase 2 implementation, another bond issue
may be needed in addition to an increase in surcharge revenues. The
current multi-year flow monitoring for infiltration/inflow is a
first step to identify system needs for Phase 2 implementation.
Training (Item F) Long-term senior experienced City staff
provide in-house training regarding sewer collection system
operations, maintenance and monitoring. Training is accomplished by
a combination of initial orientation, monthly “tailgate” training
sessions, and on-the-job training.
New sewer maintenance employees receive a first day orientation
and safety training. The monthly tailgate training sessions and
individual instruction include discussion of the following items at
various times:
Sanitary sewer regulatory requirements,
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WDR R-3-2002-0078 Attachment B – Elements of Sewer System
Management Plan
Part