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					July 2009
City of Ukiah                                                         Sewer System Management Plan
Ukiah Valley Sanitation District                                                 Executive Summary



Requirements
The State Water Resources Control Board (SWRCB) has, by General Waste Discharge
Requirement (GWDR) Order No. 2006-0003, required public agencies that own or operate
sanitary sewer systems to develop and implement a Sewer System Management Plan (SSMP)
aimed at reducing sanitary sewer overflows (SSOs). It has also required these agencies to report
electronically all SSOs to the Board.

The SSMP must describe how the City of Ukiah (City) and Ukiah Valley Sanitation District
(District) construct, manage, operate, and maintain their sanitary sewer system by addressing
each of the 11 elements of the plan. These elements are summarized below:

1.     Goals of the SSMP
2.     Organization and Chain of Communications for SSMP
3.     Legal Authority to Operate and Maintain Sewage Collection System
4.     Sewer Collection System Operation & Maintenance Program
5.     Sewer Collection System Design and Performance Provisions
6.     Sewer Overflow Emergency Response Plan
7.     Fats, Oil and Grease Control Program
8.     Collection System Evaluation and Capacity Assurance Plan
9.     Operation and Maintenance Monitoring, Management and Plan Modifications
10.    SSMP Program Audits
11.    Communication Program with Public and Stakeholders

The various program improvements included in this Executive Summary and the SSMP will be
further reviewed by the City and District during the 2009-10 fiscal year (FY 09/10) and will be
addressed in subsequent fiscal year budgets and/or planning documents.

Table ES-1 below is a tracking matrix for the City and the District that illustrates the various
tasks required by the GWDR and the actions taken by the City and District to comply with the
requirements.

                                               Table ES-1
                                             GWDR Tracking

    Main Task                                      Due Date     Date
     Sub-task                  Comments             Status    Completed     Responsible Party
Application for           Submit Notice of          11/2/07    11/2/07    City on behalf of the
Coverage                  Intent identifying the   Complete     Final     City and District
                          agency’s authorized
                          representative.
SSO Electronic            Agency must report       05/02/07    05/02/07   City on behalf of the
Reporting Program         all SSOs to the          Ongoing     Ongoing    City District
                          statewide SSO
                          database via the
                          Internet.


Winzler & Kelly                                    ES-1                                    July 2009
02502-07002
City of Ukiah                                                           Sewer System Management Plan
Ukiah Valley Sanitation District                                                   Executive Summary

     Main Task                                    Due Date     Date
      Sub-task                  Comments           Status    Completed        Responsible Party
SSMP Development          Initial plan on how      11/2/07    11/2/07       City on behalf of the
Plan and Schedule         the agency intends to   Complete     Final        City and District. The
                          develop and                                       two agencies have
                          implement their                                   contracted with Winzler
                          SSMP.                                             & Kelly for support.
1.0 Goal
SSMP Goals                Stated goals for the     11/2/07    11/2/07       Goals adopted by both
                          SSMP.                   Complete     Final        the City Council and
                                                                            District Board
2.0 Organizational Structure
Agency                 Names and staff             11/2/07    11/2/07       City on behalf of the
Organizational         positions responsible      Complete     Final        City and District. The
Structure              for developing and                                   City operates both its
                       implementing the                                     collection system and
                       SSMP including the                                   the District’s system.
                       chain of
                       communications for
                       reporting SSOs
3.0 Legal Authority
Legal Authority        Agency’s legal             5/2/2009    5/1/2009      The City adopted
                       authority to operate       Complete      Final       Ordinance No. 845 in
                       and maintain its                                     1985 as its Wastewater
                       sewage collection                                    Ordinance. The District
                       system.                                              adopted Ordinance No.
                                                                            12 in 1985 as its
                                                                            Wastewater Ordinance.
                                                                            The two agencies have
                                                                            contracted with Winzler
                                                                            & Kelly to prepare this
                                                                            plan element.
4.0 Operation and Maintenance
Mapping              Up to date mapping           5/2/2009    5/1/2009      City on behalf of the
                     of the sewage                Ongoing       Final       City and District. The
                     collection system                                      two agencies have
                     facilities including                                   contracted with Winzler
                     appropriate storm                                      & Kelly for support.
                     water systems.
Preventative         Written description          5/2/2009    5/1/2009
Maintenance          of the preventive            Complete      Final
Program              maintenance
                     activities the agency
                     employs.




Winzler & Kelly                                   ES-2                                       July 2009
02502-07002
City of Ukiah                                                        Sewer System Management Plan
Ukiah Valley Sanitation District                                                Executive Summary

     Main Task                                 Due Date         Date
      Sub-task               Comments            Status      Completed      Responsible Party
Rehabilitation and     Short- and long-term     5/2/2009      5/1/2009
Replacement            plan for the             Ongoing         Final
Program                rehabilitation or
                       replacement due to
                       system deficiencies
                       including funding
                       (CIP).
Inspection Program     Program for the          5/2/2009      5/1/2009
                       regular visual and       Ongoing         Final
                       CCTV inspection of
                       the system.
Staff Training         Staff O&M training       5/2/2009      5/1/2009
                       and assurance that       Ongoing         Final
                       contractors are
                       adequately trained.
Equipment and Parts Equipment and parts         5/2/2009      5/1/2009
Inventory              inventory including     Complete         Final
                       the identification of
                       critical replacement
                       parts.
5.0 Design and Performance Provisions
Design Standards       Design standards for     8/2/2009     7/15/2009   City on behalf of the
                       new and rehabilitated    Ongoing        Final     City and District. The
                       systems.                                          two agencies have
Inspection and         Inspection and testing   8/2/2009     7/15/2009   contracted with Winzler
Testing Standards      standards for new        Ongoing        Final     & Kelly for support.
                       and rehabilitated
                       systems.
6.0 Overflow Emergency Response Plan (OERP)
                       Written procedures      10/1/2008      5/1/2009   Adopted by the City
                       defining how the         Draft to        Final    Council on April 15,
                       agency responds to      RWQCB                     2009 and by the District
                       SSOs.                                             Board on April 16,
                                                5/1/2009                 2009.
                                              Complete per
                                                 GWDR
7.0 Fats, Oils & Grease (FOG) Control Program
FOG Ordinance          Legal authority to       5/2/2009      5/1/2009   FOG Ordinance No.
                       prevent the discharge   Complete         Final    1111 was adopted by
                       of FOG into the                                   the City in October
                       system.                                           2008; District
                                                                         Ordinance No. 27 was
                                                                         adopted in 2006.
FOG Program               Program to reduce or   5/2/2009     5/1/2009   City on behalf of the
                          eliminate FOG-         Ongoing        Final    City and District. The
                          related SSOs.                                  two agencies have
                                                                         contracted with Winzler
                                                                         & Kelly for support.


Winzler & Kelly                                  ES-3                                     July 2009
02502-07002
City of Ukiah                                                    Sewer System Management Plan
Ukiah Valley Sanitation District                                            Executive Summary

     Main Task                               Due Date       Date
      Sub-task             Comments           Status      Completed     Responsible Party
8.0 System Evaluation and Capacity Assurance Plan (SECAP)
System Evaluation     Evaluate those         8/2/2009     7/15/2009   City on behalf of the
                      portions of the        Ongoing        Final     City and District. The
                      system that are                                 two agencies have
                      experiencing                                    contracted with Winzler
                      capacity-related                                & Kelly for support.
                      overflows. Establish
                      steps to eliminate
                      capacity-related
                      overflow including
                      I&I program and
                      short- and long-term
                      CIP for capacity
                      issues.
9.0 Monitoring, Measurement, and Program Modifications
Monitoring,           Maintain records,      8/2/2009     7/15/2009   City on behalf of the
Measurement, and      monitor and assess     Ongoing        Final     City and District. The
Program               the effectiveness of                            two agencies have
Modifications         the program and                                 contracted with Winzler
                      update as necessary.                            & Kelly for support.
10.0 SSMP Program Audits
Audits                Conduct periodic       8/2/2009     7/15/2009   City on behalf of the
                      audits at least every  Ongoing        Final     City and District. The
                      two years on the                                two agencies have
                      SSMP.                                           contracted with Winzler
                                                                      & Kelly for support.
11.0 Communication Program
Communications      Develop a public        8/2/2009     7/15/2009    City on behalf of the
with the Public     communication           Ongoing        Final      City and District. The
                    program with                                      two agencies have
                    customers and                                     contracted with Winzler
                    potential customers                               & Kelly for support.
                    that include the
                    opportunity to
                    provide input during
                    the development,
                    implementation, and
                    performance of its
                    SSMP.




Winzler & Kelly                            ES-4                                       July 2009
02502-07002
City of Ukiah                                                          Sewer System Management Plan
Ukiah Valley Sanitation District                                                  Executive Summary

     Main Task                                      Due Date     Date
      Sub-task                  Comments             Status    Completed      Responsible Party
Communications            If there is a satellite   8/2/2009   7/15/2009   Joint effort between the
with Satellite Agency     agency connected to       Complete     Final     City and District to
                          the collection system,                           develop the SSMP. The
                          develop a plan of                                City and District have
                          regular                                          parallel ordinances, with
                          communications with                              the City in charge of all
                          them.                                            system maintenance.
                                                                           The two agencies have
                                                                           contracted with Winzler
                                                                           & Kelly for support.
Final SSMP
                          Final the SSMP            8/2/2009   7/15/2009   City on behalf of the
                          document after all        complete     Final     City and District. The
                          elements have been                               two agencies have
                          developed and                                    contracted with Winzler
                          implemented.                                     & Kelly for support.

Background Information
The City and District are located in the Yokayo valley in southern Mendocino County (See
Figure ES-1). Within the city limits there are approximately 15,500 residents. The greater Ukiah
area, including adjacent valleys and connecting communities, is home to more than 40,000
people. Ukiah is a full service city governed by an elected Council. The District is a special
purpose district governed by an elected Board. The District’s collection system serves both
unincorporated areas of Mendocino County and portions of the City which were annexed in the
last 30 years.

The City has approximately 44 miles of sewer collection pipelines and one pump station within
its corporate limits, and manages another 46 miles of sewer collection pipelines and two pump
stations owned by the District. The pipelines vary in diameter from 6- to 42-inches. Both
jurisdictions deliver collected wastewater to the City’s Wastewater Treatment Plant (WWTP)
located in the southern part of Ukiah. The WWTP has a current treatment capacity of 3.01
million gallons per day (mgd) of dry weather flow and up to 24.5 mgd of peak wet weather flow.
Figure ES-2 shows an overview of the City and District collection systems, including the
WWTP. The District’s facilities are generally satellite facilities to the City’s collection system.
The City, through an agreement with the District, maintains all collection system facilities using
maintenance staff from its Public Works Department.

Summary of the SSMP
The following discussion provides a brief overview of each element including a summary of the
requirements of the SSMP, and City and District accomplishments and future program
improvements.

Element I - Goals
The SWRCB requires the SSMP to provide a plan and schedule to properly manage, operate, and
maintain all parts of the sanitary sewer system in order to reduce and prevent SSOs as well as

Winzler & Kelly                                     ES-5                                    July 2009
02502-07002
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                                                                                                                                                                                                         City of Ukiah
                                                                                                                                                                                                 Ukiah Valley Sanitation District
                                                                                                                                                                                                          Vicinity Map
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                                                                                                                                                                                                                                                                                                       Sewer System Overview
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                                                                                                                                                                                                                                                                                                                Mendocino County, California
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                                                                                                                                                                                                                                                                                                                             02502-07-002
                                                                                                                                                                                                                                                                                                                                 June 2009
                                                                                                                                                                                                                                                                                                                              Figure ES-2
J:\02502 - City of Ukiah\02502 07 002 SSMP\Maps\Figure ES-2 Sewer System Overview.mxd
City of Ukiah                                                            Sewer System Management Plan
Ukiah Valley Sanitation District                                                    Executive Summary

mitigate any future SSOs. The following goals were approved by the City and District to
achieve the SWRCB requirements:

     1. Maintain or improve the condition of the collection system infrastructure in order to
        provide reliable service now and into the future.
     2. Cost-effectively minimize infiltration/inflow and provide adequate sewer capacity to
        accommodate design storm flows.
     3. Minimize the number and impact of sanitary sewer overflows that occur.

The City and District have implemented several programs to enact the aforementioned goals to
date. The City and District have adopted grease ordinances, scheduled cleaning of known areas
that have been the cause of overflows (hot spots), mapped FOG problem areas, and are in the
process of conducting closed-circuit television (CCTV) inspections of the entire collection
system. A summary of the program improvements and the associated estimated costs are
provided in Table ES-I.

                                                Table ES-I
                                      Goals – Program Improvements

     Program Improvements                  Effort needed to complete            Timeframe
Evaluate and update the goals as City and District staff time            Annually beginning in 2010
needed in order to reduce, prevent
and mitigate SSOs

Element II – Organization
This element must provide the name of the responsible representative, an organizational chart
explaining who is responsible for implementing specific measures in the SSMP, and the chain of
communication for reporting SSOs.
The City Council and District’s Board of Directors hold quarterly joint meetings to discuss issues
of common interest. The City’s Director of Public Works also represents the City at all District
Board meetings. The City is responsible for all engineering and operations at the treatment plant
and collection system. However, the development of this SSMP is a joint effort between the City
and District.
The City and District will continue working together to provide safe, functional, and effective
sanitary sewer service to the rate payers. Some reorganization of responsibilities for public
works staff is anticipated to accomplish the various goals and projects outlined in this SSMP.
                                                Table ES-II
                                   Organization – Program Improvements

     Program Improvements                  Effort needed to complete            Timeframe
Update organizational chart and City staff time                          As needed
staffing contact information as
needed
Update chain of communication for City staff time                        As needed
reporting SSOs

Winzler & Kelly                                   ES-6                                        July 2009
02502-07002
City of Ukiah                                                            Sewer System Management Plan
Ukiah Valley Sanitation District                                                    Executive Summary


Element III – Legal Authority
This element must demonstrate that the City and District possess the legal authority to operate,
maintain, and enforce standards for the wastewater collection system. The following ordinances
provide the District with this authority within its jurisdictional boundary:

     •    Ordinance No. 1, establishes authority to regulate sewage disposal in public and private
          systems;
     •    Ordinance No. 12, builds upon Ordinance No. 1 serving as the District’s Wastewater
          Ordinance;
     •    Ordinance No. 27, establishes a grease interceptor/trap policy; and
     •    Ordinance No. 30, facilitates the proper maintenance of private sewer laterals.

The following ordinances provide the City with this authority within its jurisdictional boundary:

     •    Ordinance No. 845, provides rules and regulations for the use of sanitary sewer facilities;
     •    Ordinance No. 1059, regulates the generation of grease interceptor waste;
     •    Ordinance No. 1105, facilitates the proper maintenance of private sewer laterals;
     •    Ordinance No. 1111, regulates the facilities that create and discharge grease into the
          public sewer system; and
     •    Ordinance No. 1114, removes the City/District overlap area from the City’s jurisdiction
          regarding grease interceptor waste.

Upon completion of its CCTV inspection and condition assessment of the collection system, the
City and District will be better able to identify problem areas which would require enforcement
of their respective Ordinances. Also, with further effort in its fats, oils, and grease (FOG)
program, the City will be able to pinpoint any consistent food service establishment (FSE) “hot
spots” which could require enforcement.

                                            Table ES-III
                              Legal Authority – Program Improvements

     Program Improvements                Effort needed to complete               Timeframe
Maintain authority to control sewer    City and District staff time      Ongoing
use and maintenance
Maintain up-to-date information        City and District staff time      Annually beginning in 2010
about sewer codes and ordinances in
SSMP
Enforce violations of the FOG          City and District staff time      As needed
ordinances
Maintain up-to-date information        City and satellite agency staff Annually beginning in 2010
about satellite agencies agreements    time

Element IV – Operation & Maintenance
In order to provide an adequate and appropriate Operation and Maintenance (O&M) Program,
this element must describe how the City and District maintain their collection system mapping,


Winzler & Kelly                                   ES-7                                         July 2009
02502-07002
City of Ukiah                                                          Sewer System Management Plan
Ukiah Valley Sanitation District                                                  Executive Summary

the routine preventative O&M activities, rehabilitation and replacement, equipment and
replacement part inventories, and the training opportunities provided for staff.

Collection System Mapping
The City has mapped the entire collection system (both City and District owned) and maintains
map resources in AutoCAD and in a geographic information systems (GIS) database. The City
makes regular updates to these resources based on field observations made during CCTV and
visual inspection. Updates are also made using record drawings following the completion of
improvement projects. Through the preparation of this SSMP, additional sanitary sewer and
storm drainage base maps have been produced using the GIS database.

The City understands the important correlation between the occurrence of a SSO and the location
of the storm drainage system and surface waters. The City will verify storm drain outlets for
receiving water bodies adjacent to the sewer collection system and continue to update the storm
drainage system information in the GIS database. The City will continue to integrate collection
system metrics such as system geometry, materials, and age into the GIS database. This
information provides a basis for hydraulic modeling and asset management.

Preventative Maintenance
The City used its map resources and CCTV inspection to better characterize hot spots and
problem areas in the collection system and established a regular cleaning and inspection
schedule. The City utilized its manual work log system to clean and inspect the overall
collection system on a regular schedule.

The City will continue to monitor hot spots and other problem areas. These locations in the
collection system will be added and/or modified in the GIS database and any future asset
management programs that are adopted by the City or the District. Cleaning activities and
inspection schedules will be modified as appropriate to cover these locations. The City will
continue to enforce the City and District grease ordinances for FSEs to reduce the impact of FOG
on the collection system.

Rehabilitation and Replacement
The City is actively completing CCTV inspection, with the intent that the entire collection
system will be inspected by January 2010. The results of this inspection have been used to
complete various spot repairs and lateral improvements throughout the collection system. The
City completed water quality testing of its urban streams through the Healthy Waterways Study
and is currently completing CCTV inspection of portions of the sewer system that could be
contributing to degraded water quality via exfiltration.

The City will use GIS resources and CCTV inspection to prepare recommendations for
collection system repairs and rehabilitation and replacement projects. To accompany CCTV
inspection, the City plans to complete a condition assessment of a portion or all of the collection
system using National Association of Sewer Service Companies (NASSCO) defect categories
and Pipeline Assessment and Certification Program rating procedures. Results will be tabulated
in the GIS database. The City will conduct wet weather flow monitoring and additional
hydraulic modeling to better characterize average dry weather and peak wet weather flows for

Winzler & Kelly                               ES-8                                          July 2009
02502-07002
City of Ukiah                                                         Sewer System Management Plan
Ukiah Valley Sanitation District                                                 Executive Summary

the collection system. Conclusions from this effort will be used to refine future fiscal year
budgets for capital improvement projects. The City and District will consider the installation of
emergency backup generators at the three collection system pump stations in future fiscal year
budgets.

Contingency Equipment and Replacement Inventories
The City installed telemetry equipment at the three collection system pump stations. The City
will integrate the management of its parts and equipment inventories with an asset management
system.

Training
City staff completed training per California Water Environment Association (CWEA) and
California Division of Occupational Safety and Health (Cal/OSHA) guidelines. Staff attended
conferences and training events to maintain and/or enhance grade level certifications and to
increase knowledge of current industry practices. Two staff members also attended NASSCO
training in order to support planned condition assessment activities. The City purchased a new
CCTV vehicle and trained staff on operation of the equipment and software necessary for its
operation.

The City will continue to train staff per CWEA guidelines and will maintain or increase grade
level certifications as appropriate. The City will train additional staff on the use of CCTV
equipment and coordinate CCTV inspections with staff members trained for NASSCO condition
assessment. The City will continue to train staff in the use of the GIS database. This database
will become increasingly important once the City begins its use of an asset management
program. The City and District will review and adopt Standard Operating Procedures (SOP) to
incorporate the practices and information already utilized by the City. The SOP will provide a
resource for supervisors and staff to review and update operation and maintenance certifications
and procedures.

                                          Table ES-IV
                       Operation and Maintenance – Program Improvements

     Program Improvements                Effort needed to complete           Timeframe
Maintain up-to-date GIS maps of the    City staff time                Ongoing
sanitary sewer system
Update storm drainage system into      City staff time                Ongoing; begin work in 2010
GIS
Integrate collection system metrics    City staff time                Complete by 2012
into GIS
Perform       routine     preventive   City staff time                Ongoing
maintenance program
Monitor and track hot spots or other   City staff time                Ongoing
problematic areas
Condition assessment of collection     Retain professional services   Included in Element 8 –
system                                                                Collection System Master
                                                                      Plan
Rehabilitation and replacement plan Retain professional services      Included in Element 8 –

Winzler & Kelly                                   ES-9                                     July 2009
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City of Ukiah                                                              Sewer System Management Plan
Ukiah Valley Sanitation District                                                      Executive Summary

that identifies and prioritizes sewer                                      Collection   System   Master
system defects                                                             Plan
Take appropriate measures to reduce City staff time                        Ongoing
I&I
Install emergency backup generators Retain professional services to        Complete by 2015
at the three pump stations             assist in preparing construction
                                       documents.
                                       Purchase and install generators.
Utilize asset management programs      Purchase the appropriate software   Complete by 2015
                                       and begin data input and
                                       implementation.
Provide regular technical training for City staff time                     Ongoing
the staff
Maintain up-to-date equipment and City staff time                          Ongoing
critical spare parts inventory

Element V – Design & Performance Provisions
This element must identify design and construction standards and specifications for the
installation of new sanitary sewer systems, pump stations and other appurtenances; and for
rehabilitation and repair of existing sanitary sewer systems. In addition, this element must
identify the procedures and standards for inspecting and testing the installation for the
abovementioned systems.

The City and District have ordinances, standards, and established guidance for sewer main and
lateral construction, inspections, and testing. CCTV technology has further allowed the City to
inspect laterals. This information, including program applications and forms, is available to the
public on the City’s website.

The City and District can improve their SOP by updating and reviewing them on a regular basis.
The City and District should ensure that general construction observation and specific
inspections occur at appropriate milestones during a sewer main or lateral installation,
rehabilitation, or repair.

                                         Table ES-V
                  Design and Performance Provisions – Program Improvements

     Program Improvements               Effort needed to complete                  Timeframe
Adopt Standards of Practice (SOP) City staff time                          Implemented by 2011
and commit to increase its
effectiveness
Maintain up-to-date information City staff time                            Ongoing
about design, inspection and testing
standards




Winzler & Kelly                                 ES-10                                            July 2009
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City of Ukiah                                                          Sewer System Management Plan
Ukiah Valley Sanitation District                                                  Executive Summary


Element VI – Overflow Emergency Response Plan
The element requires the development and implementation of an overflow emergency response
plan that identifies measures to protect the public health and environment. The response plan
should be developed as a stand-alone document and summarized in the SSMP.

The City has adopted and submitted a new Overflow Emergency Response Plan (OERP) to the
Regional Water Quality Control Board on September 30, 2008, which covers activities in both
the City and District collection systems. The Plan provides an effective overflow response plan
to minimize any health risks or damage to private property or the environment from SSOs. The
complete OERP document is found in Appendix 6-A and includes the following sections:

          I.      Authority
          II.     General
          III.    Overflow Response Procedures
          IV.     Public Advisory Procedures
          V.      Regulatory Agency Notification Plan
          VI.     Media Notification Procedures
          VII.    Distribution and Maintenance of OERP

In the future, the City will continue to train staff on the procedures outlined in the OERP and will
increase its use of GIS resources to identify potential SSO locations, strategize for future system
improvements, and provide mapping resources for field crews.

                                           Table ES-VI
                                   OERP – Program Improvements

     Program Improvements               Effort needed to complete              Timeframe
Update      overflow      emergency City staff time                    Ongoing
response plan (OERP) per state and
regional requirements for reporting
SSOs
Provide training for the staff on the City staff time                  First training September
OERP procedures                                                        2009; updates as needed

Element VII – Fats, Oils & Grease Control Program
Fats, oils, and grease do not easily break down in a sewer collection system, especially when
combined with other solid sewer waste constituents and subsurface obstructions (i.e., tree roots,
offset joints, side sewer connections, etc.). This element must identify if a FOG source control
program is needed for the City and District. If a program is needed, the City and/or District, or
both, must prepare and implement a program to reduce amount of these substances discharged to
the sanitary sewer system.

The City and District have a FOG program that provides a balanced approach to address the
problem by:




Winzler & Kelly                                 ES-11                                        July 2009
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City of Ukiah                                                        Sewer System Management Plan
Ukiah Valley Sanitation District                                                Executive Summary

     •    Identifying FOG sources;
     •    Enforcing City and District codes requiring the installation and maintenance of
          pretreatment facilities for non-domestic sanitary sewer customers;
     •    Minimizing FOG-related sewer blockages and overflows in a cost-effective manner; and
     •    Educating the public about FOG and its impact on the community and environment.

The City and District have implemented strategies to achieve the first three objectives through
the adopted grease ordinances and identifying commercial food preparation and other non-
domestic and domestic FOG problem areas. In the future, the City and District will continue to
monitor and document FOG problem areas, implement a FOG community outreach program and
appoint a staff person to coordinate the program, and research methods that allow the City and
District the authority to inspect and enforce FOG related problems from domestic users.

                                         Table ES-VII
                          FOG Control Program – Program Improvements

     Program Improvements               Effort needed to complete            Timeframe
Implement       FOG     community     City staff time                Begin in 2009, then ongoing
outreach program to promote the
proper disposal of FOG
Assign a staff person to coordinate   City staff time                Complete
FOG outreach
Develop a plan for the disposal of    Retain professional services or Complete by 2010
FOG generated within the service      City staff time
area
Maintain preventative maintenance     City staff time                Ongoing
for facilities with FOG-related
problems
Maintain up-to-date information       City staff time                Ongoing
about food service establishments
(FSEs) location and their FOG-
control devices

Element VIII – System Evaluation & Capacity Assurance Plan
This element requires the City and District to 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 CIP must evaluate portions of the sanitary sewer system that experience a
hydraulic deficiency, design criteria, the steps needed to establish a short- and long-term CIP,
and a schedule for the plan.

The City and District have identified laterals, through CCTV inspection, in need of repair and/or
replacement, design criteria that will be used for wet weather flow hydraulic modeling, and
collected records and mapped existing data for modeling purposes.

The City and District will look into updating their sewer system master plan. The master
planning effort would include a review of projected growth patterns, complete flow monitoring

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City of Ukiah                                                          Sewer System Management Plan
Ukiah Valley Sanitation District                                                  Executive Summary

program, modeling the entire sewer system, identifying and prioritizing capacity and
rehabilitation improvement projects, and recommendations for a short- and long-term CIP.

                                        Table ES-VIII
                     System Evaluation & Capacity – Program Improvements

      Program Improvements              Effort needed to complete              Timeframe
Prepare Collection System Master Retain professional services          Begin data preparation in
Plan including:                                                        2009; complete plan by
    • Land use projections                                             2012
    • Wet weather flow monitoring
        program
    • Sewer system modeling in
        order     to   evaluate    the
        hydraulic performance of the
        system
    • Identify deficiencies and
        prioritize rehabilitation and
        replacement projects
    • Recommendations for short-
        term and long-term CIPs

Element IX – Monitoring, Measurement, and Program Modifications
This element requires the City and District to maintain information that that can be used to
establish and prioritize appropriate SSMP activities, monitor the effectiveness of each element of
the SSMP and if necessary update elements, assess the preventative maintenance program, and
identify and illustrate SSO trends.

The following list shows the quantitative indicators that are currently tracked or those planned to
be tracked by the City and District:

     •    Location of all SSOs over the past 12 months;
     •    Number of SSOs over the past 12 months, distinguishing between dry weather overflows
          and wet weather overflows;
     •    Volume distribution of SSOs (e.g., number of SSOs less than 100 gallons, 100- to 999
          gallons, 1,000- to 9,999 gallons, more than 10,000 gallons);
     •    Volume of SSOs that was contained in relation to total volume of SSOs;
     •    SSOs by cause (e.g., roots, FOG, debris, pipe failure, pump station failure, capacity,
          other);
     •    Number of SSOs over the past 12 months;
     •    Stoppages by cause;
     •    Number of grease interceptors inspected over the past 12 months;
     •    Percentage of grease interceptors inspected over the past 12 months;
     •    Miles of gravity mains cleaned over the past 12 months;


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City of Ukiah                                                           Sewer System Management Plan
Ukiah Valley Sanitation District                                                   Executive Summary

     •    Percentage of total gravity mains cleaned over the past 12 months;
     •    Percentage of wet wells cleaned over the past 6 months.

The above indicators will continue to be monitored. The Public Works Director will assume the
overall responsibility for maintaining and updating the SSMP. A number of the activities
described in the SSMP reflect ongoing programs for which the review and update process is well
established. Examples include preventative maintenance measures, staff training, outreach,
inspection, and testing. Updates will occur as infrequently as every five years, and more
frequently if warranted through significant changes in the supporting documents for the program
elements.

                                          Table ES-IX
                                   MMP – Program Improvements

     Program Improvements                Effort needed to complete             Timeframe
Monitor implementation of SSMP         City staff time                  Ongoing
Update SSMP every five years           City staff time                  Ongoing beginning in 2014

Element X – Audits
This element requires the City and District to conduct internal audits at least once every two
years. The audit shall focus on evaluating the effectiveness of the SSMP and the City’s
compliance with the SSMP requirements, including identification of any deficiencies in the
SSMP and steps to correct them.

The City and District have prepared a comprehensive approach to biennially evaluate the
effectiveness of each element of the SSMP and will continue to work to identify and implement
best management practices through the SSMP, including implementing a new Computerized
Maintenance Management System.

                                             Table ES-X
                                   Audits – Program Improvements

     Program Improvements                Effort needed to complete             Timeframe
Conduct periodic audits and record City staff time                      Ongoing every two years
the results                                                             beginning in 2011

Element XI – Communication
This element requires the City and District to communicate with the public on the development,
implementation, and performance of its SSMP. The public shall be provided the opportunity to
provide input on the SSMP. In addition, the City is required to create a formal plan of
communication with the District.

The development of this SSMP is a joint effort between the City and District. The City and the
District will continue to communicate as the SSMP is implemented. The City will also ensure
that the public is involved with the development of the SSMP. In addition, beyond SWRCB


Winzler & Kelly                                  ES-14                                       July 2009
02502-07002
City of Ukiah                                                       Sewer System Management Plan
Ukiah Valley Sanitation District                                               Executive Summary

requirements, the City has identified a need to be proactive in the community in the prevention
of FOG and SSOs. The City will implement a communication program to fulfill this need.

                                          Table ES-XI
                              Communication – Program Improvements

     Program Improvements              Effort needed to complete           Timeframe
Implement communication program City staff time                     Ongoing beginning in 2009
with public and satellite agencies




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