ATT 1 - CMV 2025 Sanitary Sewer Management Plan Update — Mountain View City Council, June 24, 2025

Attachment 1

SEWER SYSTEM

MANAGEMENT PLAN

WDID No. 2SSO10111

JUNE 2025

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City of Mountain View June 2025
Sewer System Management Plan - i -
Sewer System Management Plan
General Organization

ELEMENT 1: SEWER SYSTEM MANAGEMENT PLAN GOAL AND INTRODUCTION ...................... 1 ELEMENT 2: ORGANIZATION ...................................................................................................... 5 ELEMENT 3: LEGAL AUTHORITY ............................................................................................... 11 ELEMENT 4: OPERATION AND MAINTENANCE PROGRAM ...................................................... 14 ELEMENT 5: DESIGN AND PERFORMANCE PROVISIONS .......................................................... 17 ELEMENT 6: SPILL EMERGENCY RESPONSE PLAN .................................................................... 18 ELEMENT 7: SEWER PIPE BLOCKAGE CONTROL PROGRAM ..................................................... 39 ELEMENT 8: SYSTEM EVALUATION, CAPACITY ASSURANCE AND CAPITAL IMPROVEMENTS .. 42 ELEMENT 9: MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS ..................... 48 ELEMENT 10: INTERNAL AUDITS .............................................................................................. 50 ELEMENT 11: COMMUNICATION PROGRAM ........................................................................... 50 APPENDICES A–J

NOTE: S e c ti o n n u m b e r s a r e b a s e d o n t h e S t a t e W a t e r R e s o u r c e s C o n t r o l B o a r d’s Order No. 2022-0103-DWQ “Statewide Waste Discharge Requirements General Order” dated December 6, 2022.

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ELEMENT 1: SEWER SYSTEM MANAGEMENT PLAN GOAL AND

INTRODUCTION
The goal of the Sewer System Management Plan (SSMP or Plan) is to provide a plan and schedule to: (1) properly manage, operate, and maintain all parts of the Enrollee ’s sanitary sewer system(s); (2) reduce and prevent spills; and (3) contain and mitigate spills that do occur. The Plan must include a narrative Introduction section that discusses the following items:

1.1 Regulatory Context

The Plan Introduction section must provide a general description of the local sewer system management program and discuss Plan implementation and updates.

This Sewer System Management Plan (SSMP or Plan ) is a compilation of the policies, procedures, and activities that are included in the planning, management, operation, and maintenance of the City of Mountain View’s (City’s) sanitary sewer system. The SSMP was ﬁrst prepared by the City of Mountain View Public Works Department and approved by the City Council in 2008 . It has been updated periodically to reﬂect organization changes, Master Plan updates, changes in monitoring requirements, and other relevant changes. The last SSMP update to City Council occurred in June 2018.

This SSMP is intended to meet the requirements of the State Water Resources Control Board (SWRCB) Statewide Waste Discharge Requirements General Order (Sanitary Sewer Systems General Order (SSSGO)) for Wastewater Collection Agencies, Order No. 2022-0103-DWQ dated December 6, 2022 . The structure (section numbering and nomenclature) of this SSMP follows the SSSGO organization and its requirements in that each section corresponds to an “element” of the SSSGO Attachment D—Sewer System Management Plan—Required Elements. Each required element , and element subsection where applicable , provides SSSGO requirements in italics.

In support of the SSSGO requirement, the City of Mountain View has established the following detailed goals for this SSMP:

• Properly manage, operate, and maintain the wastewater collection system.

• Maintain design and construction standards and speciﬁcations for the installation of new wastewater systems.

• Verify the wastewater collection system has adequate capacity to convey sewage during peak ﬂows.

• Minimize the frequency of sanitary sewer spills.

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• Respond to sanitary sewer spills quickly and mitigate the impact of the spill.

• Provide training on a regular basis for staﬀ in collection maintenance and operations.

• Encourage and support participation in the California Water Environment Association’s Wastewater Certiﬁcation Program and ongoing training programs.

• Maintain a fats, oil, and grease (FOG) program to limit fats, oils, grease, and other debris that may cause blockages in the sewage collection system.

• Develop a closed-circuit television (CCTV) program for the collection system.

• Identify and prioritize structural deﬁciencies and implement short-term and long-term maintenance and rehabilitation actions to address each deﬁciency.

• Meet all applicable regulatory notiﬁcation and reporting requirements.

• Provide excellent customer service.

1.2 Sewer System Management Plan Update Schedule

The Plan Introduction section must include a schedule for the Enrollee to update the Plan, including the schedule for conducting internal audits. The schedule must include milestones for incorporation of activities addressing prevention of sewer spills.

The City will determine the need to update its SSMP based on the results of the audit and the performance of its wastewater collection system based on information from the Monitoring and Measuring Program Modiﬁcations Section of the SSMP . In the event that the City decides that an update is warranted, the process to complete the update will be identiﬁed. At a minimum, the SSMP will be updated every six years, as required by the SSSGO from December 2022. If updates are deemed to be signiﬁcant, or when the SSMP is updated on the six-year cycle, the SSMP will be recertiﬁed by City Council.

1.3 Sewer System Asset Overview

The Plan Introduction section must provide a description of the Enrollee -owned assets and service area, including, but not limited to:

• Location, including county(ies);

• Service area boundary;

• Population and community served;
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• System size, including total length in miles, length of gravity mainlines, length of pressurized (force) mains, and number of pump stations and siphons;

• Structures diverting stormwater to the sewer system;

• Data management systems;

• Sewer system ownership and operation responsibilities between Enrollee and private entities for upper and lower sewer laterals;

• Estimated number or percent of residential, commercial, and industrial service connections; and

• Unique service boundary conditions and challenge(s).

Additionally, the Plan Introduction section must provide reference to the Enrollee ’s up-to- date map of its sanitary sewer system as required in S ection 4.1 (Updated Map of Sanitary Sewer System) of this Attachment.

The City operates a sanitary sewer system that serves a population of approximately 86,000 in a 12 square mile service area. The sewer system service area includes all of the City of Mountain View and a portion of the federally owned lands adjacent to the City ’s northeast border .

Mountain View sewer use is approximately 65% residential and 35% commercial/industrial. The sewer system consists of 156 miles of gravity sewers, ﬁve siphons , and two pump stations. The sewers range in size from 4” to 42” in diameter.

There are approximately 17,000 sanitary sewer laterals in the City . Maintenance and repair of sanitary sewer laterals within the City are the responsibility of the property owner; however, if a cleanout is available at the property line, the City provides maintenance and repair services for laterals located within the public right-of-way upon request as a courtesy service to the residents of Mountain View. The City does not own any portion of the service lateral.

Figure 1 is a map of the overall collection system. City Wastewater Section (Wastewater) staﬀ use and maintain a set of highly detailed maps , physical maps as well as an ever-improving digital geographic information system (GIS) mapping system.

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Figure 1: Mountain View Sanitary Sewer System Map

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ELEMENT 2: ORGANIZATION
The Plan must identify organizational staﬃng responsible and integral for implementing the local Sewer System Management Plan through an organization chart or similar narrative documentation that includes:

• The name of the Legally Responsible Oﬃcial as required in Section 5.1 (Designation of a Legally Responsible Oﬃcial) of this General Order;

• The position titles, telephone numbers, and email addresses for management, administrative, and maintenance positions responsible for implementing speciﬁc Sewer System Management Plan elements;

• Organizational lines of authority; and

• Chain of communication for reporting spills from receipt of complaint or other information, including the person responsible for reporting spills to the State and Regional Water Boards and other agencies as applicable . (For example, County Health Oﬃcer, County environmental health agency, and State Oﬃce of Emergency Services.)

A. Legally Responsible Oﬃcial

The Utilities Services Manager is the City ’s legally responsible oﬃcial (LRO), authorized to certify electronic Sanitary Sewer Spill (SSS) reports submitted to California Integrated Water Quality System (CIWQS). The Assistant Public Works Director—Utilities is also an authorized LRO and serves as backup to the Utilities Services Manager.

B. Responsibility for SSMP Development, Implementation, and Maintenance

The Utilities Services Manager, Wastewater Supervisor, and Utility Systems Supervisor share primary responsibility for developing, implementing, periodically auditing, and maintaining the City’s SSMP . Table A-1 in Appendix A lists individuals with responsibility for the speciﬁc SSMP elements along with job titles and contact information.

C. Organizational Lines of Authority

Figure 2 presents an organization chart for those of the City government involved in implementing the SSMP with their respective roles summarized at the bottom of the charts.

Figures 2, 3, and 4 provide a more detailed view of the Public Works and Fire Departments with those areas associated with SSMP implementation highlighted. Responsibilities of key departments, sections, and staﬀ as related to the SSMP are as follows:

The Fire Department ’s Environmental Safety Division is responsible for ensuring that facilities using or storing hazardous materials, or discharging wastewater into the sanitary City of Mountain View June 2025
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or storm sewer, comply with applicable federal, state, and local requirements. The Division inspects and monitors approximately 250 commercial and industrial grease generators discharging into the City’s collection system and coordinates with Public Works Wastewater Operations to reduce grease-related sanitary sewer spills.

The Public Works Department plans, designs, reviews, constructs, operates, maintains, and improves the City ’s infrastructure, facilities, utilities, ﬂeet, property, and equipment; administers the City ’s Solid Waste Management, Real Estate Management, and Grant programs; provides traﬃc engineering and transportation planning services and permits private developments in the public right-of-way. Two of the three divisions within the Public Works Department, Public Services and Engineering, are routinely involved in implementing the SSMP . Each of these divisions is headed by an Assistant Public Works Director.

The Utilities Services Section of the Public Services Division operates and maintains wastewater collection and discharge systems. The Wastewater Supervisor is responsible for day-to-day operations of the collection system and managing a crew of seven Wastewater Utility Workers who conduct sewer cleaning, SSS response, minor repairs , and other O&M activities. The Utility Systems Supervisor manages a staﬀ of three, with responsibility for pump station O&M. Both the Wastewater Supervisor and Utility Systems Supervisor report to the Utility Services Manager, who, in turn, reports to the Assistant Public Works Director for the Public Services Division.

The Engineering and Environmental Compliance (EEC) Section of the Public Services Division is responsible for the engineering oversight and supports regulatory compliance of the City’s sewer system. This includes leading the planning, design, and implementation of sewer main and pump station improvement projects as part of the City ’s Capital Improvement Program. The EEC section focuses on public sewer infrastructure and works closely with the Land Development Section of the Engineering Division to review and evaluate private development projects for their impacts on the City ’s s e w e r s y s t e m . T h i s c o o r d i n a ti o n ensures that new developments meet City standards and do not adversely aﬀect the existing sewer network. Each section reports to its respective Assistant Public Works Director for the Public Works Department.

The Community Development Department, Building Division, is responsible for enforcing building-related municipal codes, including the Uniform Building and Uniform Plumbing Codes, which are adopted by reference as part of the City Code on private property.

The IT Department (IT) manages the City’s geographic information system (GIS) including the location and attribute data of all the City’s sewer collection system infrastructure. This includes coordinating with Wastewater and Engineering staﬀ to ensure sewer asset data is up to date and accurate. IT also supports the computer networking and software necessary to operate and maintain the sewer collection system.

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Figure 2: City Organizational Structure Relevant to SSMP

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Figure 3: Detailed Organization Chart for Public Works Department Areas involved in SSMP
implementation are
highlighted
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Figure 4: Detailed Organization Chart for Fire Department

Areas involved in SSMP
implementation
are highlighted
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D. Chain of Communication for Reporting Spills

The City of Mountain View operates two communication centers. During normal business operations (Monday through Friday, 8:00 a.m. to 4:00 p.m.), calls are received by staﬀ at the Municipal Operations Center, collectively referred to as Mountain View 3 (MV 3). During all other hours, calls are received by the Mountain View Communications Center. This is the City’s 9-1-1 system and is staﬀed 24/7.

NOTE: For the purpose of this SSMP , both will be referred to as MV 3 Communications.

When MV 3 Communications receives notiﬁcation of a possible spill during business hours, the Wastewater Duty Person is immediately contacted. After hours, the Wastewater Duty Person is provided a cell phone and utility truck and must have a response time of one (1) hour or less. The Wastewater Duty Person will evaluate the situation and determine if additional help is necessary.

The Wastewater Duty Person must notify the Wastewater Supervisor if:

• More than one employee is called to assist;
• The SSS is over 1,000 gallons;
• The SSS enters surface water or drainage channel;
• The SSS causes property damage or ﬂooding in a home structure; or • The SSS constitutes an imminent danger to the public or environment.

The Wastewater Duty Person completes a Wastewater Service Call Report for all SSSs. The report is forwarded to the Wastewater Supervisor for investigation and/or follow-up. A copy of the Wastewater Service Call Report is included in Appendix A.

The Wastewater and Utility Systems Supervisors have responsibility for preparing and submitting SSS reports to CIWQS and for written or verbal notiﬁcations to the County public health agency and California Governor's Oﬃce of Emergency Services ( Cal OES) . I n t h e Supervisor’s absence, crew members from the Wastewater and Utility Systems are authorized Data Submitters in CIWQS.

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ELEMENT 3: LEGAL AUTHORITY
The Plan must include copies or an electronic link to the Enrollee ’s current sewer system use ordinances, service agreements , and/or other legally binding procedures to demonstrate the Enrollee possesses the necessary legal authority to:

• Prevent illicit discharges into its sanitary sewer system from inﬂow and inﬁltration (I&I); unauthorized stormwater; chemical dumping; unauthorized debris; roots; fats, oils, and grease; and trash, including rags and other debris that may cause blockages;

• Collaborate with storm sewer agencies to coordinate emergency spill responses, ensure access to storm sewer systems during spill events, and prevent unintentional cross - connections of sanitary sewer infrastructure to storm sewer infrastructure;

• Require that sewer system components and connections be properly designed and constructed;

• Ensure access for maintenance, inspection, and/or repairs for portions of the service lateral owned and/or operated by the Enrollee;

• Enforce any violation of its sewer ordinances, service agreements, or other legally binding procedures; and

• Obtain easement accessibility agreements for locations requiring sewer system operations and maintenance, as applicable.

A. Municipal Code

The Mountain View City Code (City Code), Chapter 35, describes the City ’s current legal authorities. The legal authorities provided by the City Code and other sources that address the regulatory requirements are summarized on Table 1.

The full City Code is available at the website below :
library.municode.com/ca/
mountain_view/codes/code_of_ordinances.

Additions to the City Code are made on an as-needed basis. There is no regular schedule of Code review.

The City Code speciﬁes that sewer laterals (both “upper” and “lower”) are owned by the property owner. As a courtesy, the City voluntarily maintains the lower laterals (from property line to the main) if the lateral is equipped with a cleanout.

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B. Agreements with Satellite Agencies

The City of Los Altos wastewater collection system and the City ’s sanitary sewer system discharges to one another’s system in various locations. The City has an agreement with the City of Los Altos dated March 24, 1970.

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Table 1: Summary of Legal Authorities in Municipal Code

Requirement City Code
Reference
General
Prevent illicit discharges into the wastewater collection system.

Sec. 35.33.12
Require that sewers and connections be properly designed and constructed.

Sec. 35.32.17.A
Sec. 35.37
Sec. 35.33.22
Require proper installation, testing, and inspection of new and rehabilitated sewers.

Sec. 35.32.17.A
Sec. 35.37
Sec. 35.33.22
Laterals
Clearly define City responsibility and policies. Sec. 35.10 Sec. 35.29
Ensure access for maintenance, inspection, or repairs for portions of the service lateral owned or maintained by the City
Sec 35.2.1
Sec 35.35.40
Control infiltration and inflow (I&I) from private service laterals Sec. 35.33.11(2) FOG Source Control
Limit the discharge of fats, oils, grease, and other debris that may cause blockages.

Sec. 35.33.12(11)
Sec. 35.33.13(D)
Requirements to install grease-removal devices (such as traps or interceptors), design standards for the grease-removal devices, maintenance requirements, BMP requirements, record keeping, and reporting requirements.

Sec. 35.33.11(I)
Sec. 8.30.1 (Adoption of Cal.

Plumbing Code)
Authority to inspect grease-producing facilities. Sec. 35.32.1 Enforcement
Enforce any violation of its sewer ordinances. Sec. 35.3 Sec. 35.30.1 Sec. 35.30.2 Sec. 35.30.3
Sec. 35.30.4 Sec. 35.30.5
Sec. 35.30.6 Sec. 35.32.3.6

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ELEMENT 4: OPERATION AND MAINTENANCE PROGRAM
The Plan must include the items listed below that are appropriate and applicable to the Enrollee’s system.

4.1 Updated Map of Sanitary Sewer System

An up-to-date map(s) of the sanitary sewer system, and procedures for maintaining and providing state and Regional Water Board staﬀ access to the map(s). The map(s) must show gravity line segments and manholes, pumping facilities, pressure pipes and valves, and applicable stormwater conveyance facilities within the sewer system service area boundaries.

The City utilizes a Geographical Information System (GIS) that includes information on its wastewater collection system assets . Information on the storm drain system is also maintained in the GIS. Data in t he GIS is constantly being updated and is available to appropriate City staﬀ.

T h e ﬁ e l d c r e w s u s e h a r d c o p y m a p s ( “ 7 0 1 m a p s ” ) t h a t a r e p r o d u c e d f r o m t h e G I S . A n example sewer system 701 map is included in Appendix B. Map corrections are noted by Wastewater staﬀ and submitted to GIS and other Wastewater staﬀ. Map corrections are noted on the hard copy maps that are used until the ﬂushing cycle has been completed and new 701 maps are printed. The map correction process occurs on an ongoing basis.

4.2 Preventive Operation and Maintenance Activities

A scheduling system and a data collection system for preventive operation and maintenance activities conducted by staﬀ and contractors. The scheduling system must include:

• Inspection and maintenance activities;

• Higher-frequency inspections and maintenance of known problem areas, including areas with tree root problems;

• Regular visual and CCTV inspections of manholes and sewer pipes. The data collection system must document data from system inspection and maintenance activities, including system areas/components prone to root intrusion, potentially resulting in system backup and/or failure.

A. Inspection and Maintenance Activities

The City proactively cleans the City’s entire sewer mainline system every two to three years. Proactive cleaning of sewer main lines (referred to as “701 cleaning”) is scheduled by area, such that the entire collection system is cleaned from the top down City of Mountain View June 2025
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over the ﬂushing cycle . Staﬀ collects cleaning data (pipe size, footage, etc.) while 701 cleaning to document progress, to improve future cleaning eﬃciency, and to note any issues for follow up. The City’s standard operating procedures for sewer cleaning are included in Appendix B.

All sewer-cleaning activities (701, hotspot) are planned and tracked on a large wall map in the Wastewater oﬃce, on the master sewer map book, and in the VacCon map books carried by ﬁeld crews, using a highlighting color -coding system. Although the scheduling and tracking process is performed manually, it is highly eﬀective and readily accessible to all staﬀ.

Wastewater staﬀ also document s problems identiﬁed during cleaning activities and ﬁndings from manhole inspections that are conducted as part of those activities .

Information on cleaning activities and needed repairs is documented on a ﬁeld log (Sanitary Sewer Flushing Sheet) and summarized by oﬃce staﬀ in the Wastewater Daily Report. Examples of these forms are included in Appendix B. Repairs to be performed by City Wastewater Operations staﬀ are tracked on an oﬃce wall board in the Wastewater oﬃce, and completed in priority order, as established by the Wastewater staﬀ, crew leaders, and supervisor . Repairs that involve signiﬁcant structural defects are repaired as they are identiﬁed.

Utility Systems staﬀ inspects the operation of the City’s lift stations. The Sewer Pump Station (SPS), the City ’s primary lift station, is inspected daily, and its performance is monitored 24/7 using the Supervisory Control and Data Acquisition ( SCADA) system.

A checklist for monthly inspections is included in Appendix B. The smaller Pastel Lane Lift Station, serving a single street, is inspected twice per week.

B. Sewer Hotspot Maintenance

Wastewater staﬀ cleans sewers with a history of problems every one, three, six, or 12 months, depending on the severity of the problem. A schedule for the preventative cleaning is maintained by the Wastewater Supervisor in the Sewer Hotspot Flushing list. An example of the 12 -month schedule is included in Appendix B. The listing includes the street or location name, map page, upstream/downstream manholes, cleaning date ﬂushed, VacCon operator, pipe size, footage, and comments (ﬁeld notes and special instructions) . In addition, hotspot cleaning areas are highlighted in the GIS system and the individual map books using color coding.

Adding or removing areas from the hotspots listings (or changing frequencies) is managed by the Wastewater Supervisor, based on input from ﬁeld crew ’s feedback and documentation from daily reports. Staﬀ investigates and reviews root causes for hotspots and will prioritize repairs or operational changes to resolve the underlying issues to allow the pipeline to be removed from the hotspot list . Although informal, City of Mountain View June 2025
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the process is eﬀective, given the small size of the Wastewater Operations group and high level of communication among Section staﬀ.

C. Closed Circuit Television (CCTV) Inspections

The City contracts main line CCTV inspection services for annual condition assessment and as needed for follow -up on sewer spill events . The City has organized the CCTV projects into eight zones (1-8) and three trunk line zones (1-3).

The City’s current practice is to CCTV approximately 100,000 to 120,000 lineal feet per ﬁscal year, with the goal of covering all sewer mains every eight to nine years. The CCTV contactor provides a hard drive of all CCTV inspections along with a NASSCO condition rating for each segment using the PACP rating system. While inspections are occurring, Wastewater staﬀ reviews the video and report ﬁles on a weekly basis to verify video quality and segment data details and may instruct the CCTV contractor to reclean or revideo a given section if the video clarity or segment data is inadequate.

4.3 Training

In-house and external training provided on a regular basis for sanitary sewer system operations and maintenance staﬀ and contractors. The training must cover:

• The requirements of this General Order;
• The Enrollee’s Spill Emergency Response Plan procedures and practice drills; • Skilled estimation of spill volume for ﬁeld operators; and • Electronic CIWQS reporting procedures for staﬀ submitting data.

The City uses a combination of in-house classes, on-the-job training as well as conferences, seminars, and other training opportunities to train its Wastewater staﬀ. Field crew staﬀ are required to acquire and maintain a CWEA Grade I Collection System Maintenance Certiﬁcation and a California Commercial Class B driver ’s license with tanker endorsement within one year of employment. CWEA Grade I Certiﬁcation is required for after-hours work and a Grade II Certiﬁcation is required for all crew leaders. The h ours spent by crew members on machinery is tracked in the Daily Work Order. The City also places a heavy emphasis on safety training. All training is documented.

Crew members also receive training speciﬁc to the SSMP and Spill Emergency Response Plan (SERP). Throughout the year, Wastewater staﬀ will collectively review the SSMP and SERP to refresh on the individual requirements within. In addition, Wastewater staﬀ hold mock spill events where staﬀ get hands -on training on spill response, including spill volume estimation and reporting requirements.

The City ’s contract language will require the contractors working in the wastewater collection system to provide training for their employees in the activities that may cause City of Mountain View June 2025
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SSSs and in responding to contractor-caused SSSs. Contractors are required to ﬁle SERPs for the City’s review.

4.4 Equipment Inventory

An inventory of sewer system equipment, including the identiﬁcation of critical replacement and spare parts.

Wastewater Operations maintains an inventory of minor repair parts and supplies in the City Warehouse or Wastewater’s covered storage area. Inventory of these repair parts is managed by the City’s Warehouse staﬀ to ensure parts are available for emergencies. The pump stations have gravity bypasses (which function up to a certain ﬂow magnitude), and the City has informal agreements with neighboring agencies for equipment support in the event the sewer maintenance equipment fails.

ELEMENT 5: DESIGN AND PERFORMANCE PROVISIONS
The Plan must include the following items as appropriate and applicable to the Enrollee’s system:

5.1 Updated Design Criteria and Construction Standards and Speciﬁcations

Updated design criteria and construction standards and speciﬁcations for the construction, installation, repair, and rehabilitation of existing and proposed system infrastructure components, including , but not limited to , pipelines, pump stations, and other system appurtenances. If existing design criteria and construction standards are deﬁcient to address the necessary component -speciﬁc hydraulic capacity as speciﬁed in Section 8 (System Evaluation, Capacity Assurance, and Capital Improvements) of this Attachment, the procedures must include component-speciﬁc evaluation of the design criteria.

The City’s latest design criteria for new and rehabilitated sewers are speciﬁed in the City of Mountain View Standard Design Criteria for Sanitary Sewers, August 2002 . A copy of the design criteria is included in Appendix C.

The City’s Building Division may require installation of a backﬂow-prevention valve on sewer laterals in accordance with the Plumbing Code.

5.2 Procedures and Standards

Procedures and standards for the inspection and testing of newly constructed, newly installed, repaired, and rehabilitated system pipelines, pumps, and other equipment and appurtenances.

The City’s standards for construction and testing of sewer system components in the public right-of-way are speciﬁed in the City of Mountain View Standard Provisions and in the City’s City of Mountain View June 2025
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Standard Details, C-1 through C -9. These documents are included in Appendix C and are also available on the City’s website at: MountainView.gov/depts/pw/standard.asp.

There are only two sewer pump stations in the City’s system, and no standard speciﬁcations for pump stations have been developed, other than the applicable sections of the City of Mountain View Standard Provisions. Any pump station construction/rehabilitation project (public or private) would be designed by a qualiﬁed engineering ﬁrm under a licensed professional engineer and subject to review by EEC and Wastewater Operations. Given the rarity of new pump station construction, the City does not believe that development of standard speciﬁcations for pump stations is warranted.

ELEMENT 6: SPILL EMERGENCY RESPONSE PLAN
The Plan must include an up- to-date Spill Emergency Response Plan to ensure prompt detection and response to spills to reduce spill volumes and collect information for prevention of future spills. The Spill Emergency Response Plan must include procedures to:

• Notify primary responders, appropriate local oﬃcials, and appropriate regulatory agencies of a spill in a timely manner;

• Notify other potentially aﬀected entities (for example, health agencies, water suppliers, etc.) of spills that potentially aﬀect public health or reach waters of the state;

• Comply with the notiﬁcation, monitoring, and reporting requirements of this General Order, state law and regulations, and applicable Regional Water Board Orders;

• Ensure that appropriate staﬀ and contractors implement the SERP and are appropriately trained;

• Address emergency system operations, traﬃc control and other necessary response activities;

• Contain a spill and prevent/minimize discharge to waters of the state or any drainage conveyance system;

• Minimize and remediate public health impacts and adverse impacts on beneﬁcial uses of waters of the state;

• Remove sewage from the drainage conveyance system;

• Clean the spill area and drainage conveyance system in a manner that does not inadvertently impact beneﬁcial uses in the receiving waters;

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• Implement technologies, practices, equipment, and interagency coordination to expedite spill containment and recovery;

• Implement preplanned coordination and collaboration with storm drain agencies and other utility agencies/departments prior, during, and after a spill event;

• Conduct postspill assessments of spill response activities;

• Document and report spill events as required in this General Order; and

• Annually, review and assess eﬀectiveness of the SERP and update the Plan as needed.

A. Sanitary Sewer Spill Response

The following describes procedures for responding to SSSs . Detailed procedures and supporting documents are contained in the City ’s SERP. The SERP is included in Appendix D.

1. Receipt of Information Regarding SSS

T h e C i t y o f M o u n t a i n V i e w o p e r a t e s t w o c o m m u n i c a ti o n c e n t e r s . D u r i n g n o r m a l daytime business operations (Monday through Friday, 8:00 a.m. to 4:00 p.m.), calls are received by the Utilities Section staﬀ at the Municipal Operations Center (Mountain View 3) . During all other hours, calls are received by Mountain View Communications staﬀ at the Police/Fire Administration Building. This is the City ’s emergency 9-1-1 system and is staﬀed 24/7/365.

NOTE: For the purpose of this SSMP, both will be referred to as MV 3 Communications.

The MV 3 Communications Operator should obtain all relevant information available regarding the spill, including:

• Time and date call was received.

• Speciﬁc location.

• Description of problem.

• Time possible spill was noticed by caller.

• Caller’s name and phone number.

• Observations of the caller (e.g., odor, back or front of property).

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• Other relevant information that will enable the responding investigator and crews, if required, to quickly locate, assess, and stop the spill.

2. Responding to an SSS

MV 3 Communications records the information and contacts the designated W astewater Duty Person. The response time is typically 15 to 30 minutes. A crew personnel list is updated on a daily basis.

If an SSS occurs during nonbusiness hours, the Wastewater Duty Person is contacted.

This person’s goal is to respond within one hour of receiving the information. (The Duty Program is staﬀed during nonbusiness hours.)

3. Responding Staﬀ Responsibilities

The Wastewater Duty Person responding to a sewer backup has the immediate responsibility to protect people, the environment, and property from the eﬀects of a sewage spill. To meet these objectives in a rapid, eﬀective, and organized manner, staﬀ will respond and fulﬁll the following duties as directed by this Plan.

• REDUCE or STOP the spill at its source.

• CONTAIN spilling sewage from entering waterways.

• C A P T U R E t h e s e w a g e w h e r e i t c a n b e r e c o v e r e d a n d r e t u r n e d t o t h e s e w e r system.

• CONTAIN sewage in advantageous locations (i.e., vacant lots, plugged storm system, curb/gutter, etc.). Containment materials include sand, sand bags, etc.

• CONTROL the spill area and bypass the area if necessary.

• BYPASS the obstructed line by pumping the spillage into another nonrestricted line or vacuum with a VacCon.

• MITIGA TE the aﬀ ect ed public areas to ensur e public saf ety . (The W astew at er Supervisor must approve cleaning on private property.)

• WASH DOWN and CONTAIN runoﬀ, being careful not to wash sewage into storm drainage system.

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B. SSS Response Procedures

This section describes the procedures to be followed in response to an SSS. Additional information is provided in the SERP . Because response procedures diﬀer somewhat depending on the cause of the SSS, four potential causes are addressed: (1) pipeline blockage; (2) pipeline failure; (3) force main failure; and (4) pump station failures.

A ﬂow diagram of the SSS response process is included as Figure 5. A ﬂow diagram for use when there is private property damage is included as Figure 6.

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Reported to Public Services
Staff/MV 3 Communications
Wastewater Duty Person
dispatched to confirm SSO
Confirmed SSO…
Who’s responsible?
Wastewater Supervisor will
notify Utility Services Manager,
Assistant Public Works Director,
and Public Works Director.

Initiate spill cleanup measures.

Call for assistance and notify
Wastewater Supervisor if SSO
enters storm system, causes
property damage or is a threat
to the public or environment.

If required, Wastewater
Supervisor will notify local
regulatory agencies.

Advise resident/owner they are
responsible for cleanup.

Resident’s/owner’s inability
to perform cleanup or SSO
results in a threat to public
or environment.

Notify Wastewater Supervisor.

Wastewater Supervisor will take
necessary measures to resolve
SSO and ensure mitigation.

Complete Wastewater Duty
Report/SSO Report.

Document SSO, volume
spilled, volume recovered, how
volume was determined.

City Private
Sewer Spill Occurs

Figure 5: SSS Response Flowchart

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NOTE: For the purpose of the SERP , the Wastewater Supervisor is to be notiﬁed immediately when an SSS causes property damage or enters a storm system. If the Wastewater Supervisor is unavailable, the Wastewater Duty Person will contact the Utility Services Manager or Assistant Public Works Director.

Wastewater Duty Person
will notify Wastewater Supervisor.

Wastewater Duty Person and
Supervisor will request entry into building/
affected area to take pictures and
document visible damage
.

Wastewater Supervisor will
notify City’s Risk Manager.

Private Property Damage
Wastewater Supervisor will
notify Utility Services Manager,
Assistant Public Works Director,
and Public Works Director.

Wastewater Supervisor and Risk
Manager will explain City’s SSO policy.

Owner/occupant will be advised to contact a
professional cleaning service for cleaning
and sanitizing. Owner/occupant is
responsible for cleanup costs.

Wastewater Supervisor and Risk
Manager will provide City claim form
and explain reimbursement policy.

Claim must be completed and filed
with City Clerk’s office.

Once the City receives the completed
claim form, State law provides that the
City has 45 days to investigate the
claim. Following this 45-day period, the
City will accept or deny the claim.

Figure 6: Private Property Damage Flowchart

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ELEMENT 6: SPILL EMERGENCY RESPONSE PLAN (cont’d)

B. SSS Response Procedures (cont’d)

1. SSS Resulting from Pipeline Blockage

Upon arrival at the scene, the Wastewater Duty Person will determine the source of the SSS.

Private SSS

If it is determined the SSS is originating from a private sewer main or cleanout, the property owner, resident, or manager must be notiﬁed and informed they are responsible for corrective action, cleanup, and any damages. Chronic spills at the same property shall be referred to the City’s Fire Department - Environmental Safety Section.

If a private SSS is ﬂowing into or threatens a private storm drain system or is a danger to the public, further City intervention will be necessary. If the Wastewater Duty Person must perform work on private property, they will notify the Wastewater Supervisor. If possible, they will inform the property owner, resident, or manager that work will be performed on private property and explain why. Follow the same procedures used when a property line sewer cleanout or sewer main spills. Upon completion, the Wastewater Duty Person must document the incident and complete a Wastewater Service Call Report (see Appendix D).

Property Line Cleanout SSS

If it is determined the SSS has originated from a property line sewer cleanout, City crews will contain the spill, remove the spilled sewage, and remove the blockage. A spill from a single -family home is typically small and easy to mitigate. A spill from a large apartment building or commercial building may require a response similar to a sewer main SSS. In these cases, staﬀ will remove the blockage, clean with Liquid Alive, ﬂush or rinse the aﬀected area, and vacuum up all remaining liquid. Addition al Wastewater crew members and a VacCon are available if the spill cannot be washed back into the cleanout. Upon completion, the Wastewater Duty Person will document the incident and complete a Wastewater Service Call Report.

City Sewer Main SSS

If it is determined the SSS has originated from a City sewer main, additional staﬀ will be called in immediately and Duty personnel from Utility Systems and Water Distribution are available 24/7. The Wastewater Duty Person must estimate the level City of Mountain View June 2025
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of response necessary to resolve the incident. If necessary, the area/roadway will be closed to the public. Upon completion, the Wastewater Duty Person will document the incident and complete a Wastewater Service Call Report and ﬁll out the SERP forms.

2. SSS Resulting from Pipeline Failure

An SSS resulting from a pipeline failure will require additional time and personnel to resolve. When a sewer lateral or sewer main pipeline failure is suspected, the Wastewater Supervisor or agent shall be notiﬁed immediately. The Wastewater Supervisor will determine the level of response necessary. It may be necessary to set up a sewer bypass with portable pumps or use VacCons to transport sewage downstream while a repair is being performed. If a pipeline failure occurs on a large diameter sewer main (12” or larger), or the pipe is over 12’ deep, a contractor may be used to perform the repair. Additional staﬀ and equipment may be requested in the form of mutual aid from neighboring cities.

3. SSS Resulting from Force Main Failure/Blockage

An SSS resulting from a force main failure is likely to be a serious threat to the environment and the public. The City of Mountain View operates approximately one mile of 42” sanitary force main. This 42” force main conveys an average of nine MGD to the PARWPCP . In the event of a force main SSS, Utilities Systems personnel will shut down the SPS to reduce the pressure in the force main. If it is determined a repair is necessary, the City of Mountain View will contract with an experienced large-diameter sewer main repair contractor. A list is provided as Appendix D with company names, employees, and emergency contact numbers. The information provided on this list should be checked for accuracy annually. City crews will do all that is possible to contain a spill of this type using pumps and VacCons. Due to the large volume of sewage the force main conveys, mutual aid would most likely be requested from neighboring cities.

4. SSS Resulting from Pump Station Failure

The City of Mountain View operates two sewage lift stations: SPS and Pastel Lane Lift Station.

The largest pump station is the SPS, located within the boundary of Shoreline at Mountain View. This station pumps an average of nine MGD of untreated sewage to the PARWPCP . The station is designed to transfer (bypass) to a gravity ﬂow system in the event of a mechanical failure. A recent assessment of the pump station indicates that the gravity bypass will convey ﬂows up to 12.3 MGD before spilling. History has demonstrated this station can operate in the bypass mode beyond 90 days. The pump station is checked daily. In addition, the station communicates with the SCADA system City of Mountain View June 2025
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at the Municipal Operations Center, where conditions are monitored by the Utilities System Duty Person on an ongoing basis.

The second pump station is the Pastel Lane Lift Station. The station is small and serves approximately 10 single-family homes. In the event of a station failure, the station will hold approximately two weeks of sewage. Past station failures have not resulted in an SSS. A VacCon would be used to maintain the system in the event of a station failure.

This station is checked twice weekly.

C. SSS Recovery and Mitigation Procedures

This section provides guidelines and procedures for cleaning and disinfecting the area contaminated by a sanitary sewer spill.

1. SSS on Public Property

To minimize health eﬀects to the public and to protect the environment:

• Start cleaning the wastewater spill area as soon as possible.

• Secure the aﬀected area with cones, barricades, caution tape, etc.

• Take pictures to document the spill. This is very important if the spill causes property damage.

• Inspect the storm drain catch basins to determine whether wastewater has entered the storm system and to what extent.

• If necessary, install plugs, sandbags, sand/rock, etc., to contain the sewage.

Flush the area with water and vacuum up all liquid and/or pump it back into the collection system.

• Remove all debris found in the spill area.

• If a disinfectant or cleaning product is used, it must be collected and deposited in the collection system.

• Thoroughly inspect the spill area before you leave.

2. SSS on Private Property

City crews are not to work on private property unless directed to do so by the Wastewater Supervisor. Cleaning on private property (outside) may be necessary City of Mountain View June 2025
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when there is imminent danger to the general public. An example would be a spill in a public parking lot or school.

If an SSS results in ﬂooding/damage inside a building or residence, advise the owner/occupant to call a professional cleaning service for cleaning, sanitizing, placing of blowers, and/or dehumidiﬁers. The City does not recommend speciﬁc contractors or companies.

If it is necessary to perform an SSS mitigation on private property, follow the same procedure used for public property.

Forms and guidelines for handling sewer backups that aﬀect private property are included in Appendix D.

3. SSSs That Reach Surface Water

If an SSS is conﬁrmed to have entered a creek or waterway , determine the extent of the SSS:

• As soon as possible, contact the Wastewater Supervisor.

• I t m u s t b e d e t e r m i n e d i f t h e c r e e k i s s a f e t o e n t e r . D u r i n g t h e w i n t e r s t o r m season, cleaning the creek may not be possible due to high water ﬂows.

• Cleaning a creek can be very diﬃcult. Get plenty of help— contact additional Wastewater crew members if necessary.

• If possible, block the creek downstream of the contaminated ﬂow based on visual evidence. Block the creek in an area that is safe to enter and is accessible to pumps and/or VacCons. Pump or vacuum contamination from creek and return it to collection system.

• As soon as possible, contact the Wastewater Supervisor, who will notify required State and local agencies through the California Oﬃce of Emergency Services.

Post public SSS spill signs and sample the creek. Follow-up sampling will also be required.

D. Water Quality Sampling and Testing

The SSSGO’s Monitoring and Reporting Program requires that water quality sampling be conducted within 48 hours after initial SSS notiﬁcation for Category 1 SSSs in which 50,000 gallons or more are spilled to surface waters and that the SSS be documented in an SSS Technical Report. For smaller SSSs, sampling may be conducted at the City’s discretion.

The City’s SSS Monitoring Plan is included in Appendix D.

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The following guidance relates to SSS monitoring and deciding when such monitoring should be conducted:

• If it is unclear whether a reported spill is sewage versus some other liquid (e.g., water from a water main break), an ammonia test strip can be used as an indicator of a sewage spill.

• Visual monitoring is part of the initial SSS response to determine what immediate actions should be taken. After the initial response and documentation of spill volume, an assessment of possible impacts on surface water should be conducted as part of the SERP . The storm drain maps can aid in determining if surface water has been impacted. Where it is safe and practical, surface water in the vicinity of the SSS should be inspected visually, with observations recorded on the Wastewater Spill Report.

Signs of receiving water impacts include tellt ale signs of sewage (solids, grease, paper), abnormal color, ﬁsh kills, etc. Photographs should be taken for documentation.

• For those SSSs that may imminently and substantially endanger human health and SSSs that cause ﬁsh kills, and if feasible and safe, water quality monitoring of aﬀected surface waters should be conducted. For less serious circumstances, monitoring can be conducted if doing so is likely to provide useful information and does not impede clean-up activities. (NOTE: Monitoring is required for large SSSs as described above.)

• In cases where monitoring is discretionary, the Wastewater Duty Person should exercise judgment in deciding whether to conduct monitoring, in consultation with the Wastewater Supervisor. Water quality monitoring should only be conducted when it is safe to do so and should not be given precedence over stopping the SSS or protection of public health. However, if suﬃcient personnel is available, monitoring can be conducted in parallel with these activities or with the clean -u p e ﬀ o r t . A n y monitoring should be conducted in accordance with the SSS Monitoring Plan.

• If sampling is to be conducted, the Wastewater Duty Person should notify the Wastewater Supervisor and/or Environmental Safety Section to coordinate sample collection. Samples should be collected as soon as possible after the discovery of the SSS event. In most incidents, sampling will occur after the cause of the spill has been resolved and mitigation operations have been completed. The following resources may be able to assist with sampling activities: (1) during normal business hours, the Environmental Safety Section staﬀ may be able to assist with sample collection and analysis; and (2) during nonbusiness hours or if Environmental Safety staﬀ are unable to assist with sampling, contact the City contract sampling service, Dysert Environmental Services, at 650-799-9204 and/or Alpha-Analytical at 925-828-6226.

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• Samples should be collected at the point of discharge and at upstream and downstream locations (if applicable). For impoundments, samples should be collected near the point of entry of the spilled sewage and every 100’ along the shore samples should be analyzed for ammonia, dissolved oxygen, and a bacterial indicator.

The enterococcus or E. coli analyses are preferred to characterize SSS impacts as they are a more reliable indicator of the presence of sewage than fecal coliform.

Follow-up sampling should be performed to determine when posting signs can be removed.

If bacteria results are inconclusive, ammonia or DO results may suﬃce as an indicator for conﬁrmation that the spill was resolved and signs can be removed.

• The Wastewater Supervisor will make follow-up calls to aﬀected agencies until posting has been discontinued.

E. Public Notiﬁcation

Public notiﬁcation is required when an SSS poses a threat to public health or the environment. The notiﬁcation methods are described in the following sections.

Creeks, streams, and beaches that have been contaminated as a result of an SSS should be posted at visible locations until the risk of contamination has subsided to acceptable background levels.

The Environmental Safety Section will make this determination. The warning signs should be checked every day to ensure they are still in place. Sample warning signs are included In Appendix D and in the OERP .

Posting signs and barricades may be necessary to keep vehicles and pedestrians away from spilled sewage. Posting should be done at the direction of the Wastewater Supervisor or Environmental Safety Section. Post the warning signs and block access to the contaminated water areas with yellow “Caution” tape and barricades. Do not remove these until directed.

In the event the spill occurs at night, the location should be inspected as soon as possible the following day. The site should be inspected for any signs of sewer -related debris/material that may warrant additional mitigation activities.

Major spills may warrant broader public notice. Local media may need to be notiﬁed when signiﬁcant areas may have been contaminated by sewage. The Wastewater Supervisor will notify the Utilities Services Manager, Environmental Safety Section, and OES Coordinator in the event of a major SSS.

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1. Responder Documentation

This section will explain documentation requirements when responding to an SSS.

• The Wastewater Duty Person must complete a Wastewater Service Call Report to record basic information for all Wastewater calls. When an SSS occurs, the sanitary sewer spill section must be completed. If additional space is needed to explain the incident, attach a separate letter.

• The information provided on the form is used to ﬁle an SSS Report in the CIWQS system.

• Take pictures of the spill— pictures are required. If property damage is suspected inside a building or residence, the Wastewater Duty Person and Wastewater Supervisor will request permission to enter and take pictures. Ask the resident to identify the damage and document with pictures. If you are denied entry, note this on the report. Please include names, if possible.

— Use methods outlined in SERP to estimate the volume of the spilled sewage. Whenever possible, use photos of the SSS site before the recovery operation as an aid to the volume estimation process.

• W h e n t h e m i ti g a ti o n h a s b e e n c o m p l e t e d , d o c u m e n t t h e v o l u m e o f s e w a g e recovered. In most cases, you will have to estimate.

2. SSS Investigation

All SSSs should be thoroughly investigated by the Wastewater Supervisor to determine the cause of the spill. This information is required for the SSS report and will aid in determining if additional maintenance is needed or a repair/replacement is required; all records are maintained within the Maps and Files Storage Room located at the Municipal Operations Center.

The procedures for investigating the SSS are:

• Review the incident/spill report.
• Interview responding crew members.
• Review past maintenance records.
• Review past CCTV records.
• Conduct new CCTV inspection if necessary.
• Evaluate all information and determine course of action to avoid future SSSs. • Document results of investigation and course of action.

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3. Post-SSS Debrieﬁng

Every SSS is an opportunity to thoroughly evaluate response and reporting procedures. Each spill event is unique with its own elements and challenges that might include volume, location terrain, and other parameters.

As soon as possible , after major SSS events, all of the participants —from the person who received the call to the last person to leave the site—should meet to review the procedures used and to discuss what worked and where improvements could be made in responding to and mitigating future SSS events. The results of the debrieﬁng should be recorded and tracked to ensure the action items are completed. These records will be attached to the Wastewater Spill Report.

F. SSS Categories

The SWRCB has established guidelines for classifying and reporting SSSs. Reporting and documentation requirements vary based on the type of SSS.

There are ﬁve categories of SSSs as deﬁned by the SWRCB:

• Category 1 Spill

A Category 1 spill is a spill of any volume of sewage from or caused by a sanitary sewer system regulated under this General Order that results in a discharge to:

— A surface water, including a surface water body that contains no ﬂow or volume of water; or

— A drainage conveyance system that discharges to surface waters when the sewage is not fully captured and returned to the sanitary sewer system or disposed of properly.

Any spill volume not recovered from a drainage conveyance system is considered a discharge to surface water, unless the drainage conveyance system discharges to a dedicated stormwater inﬁltration basin or facility.

A spill from an Enrollee -owned and/or operated lateral that discharges to a surface water is a Category 1 spill; the Enrollee shall report all Category 1 spills per section 3.1 of Attachment E1 (Notiﬁcation, Monitoring, Reporting and Recordkeeping Requirements) of the General Order.

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• Category 2 Spill

A Category 2 spill is a spill of 1,000 gallons or greater, from or caused by a sanitary sewer system regulated under this General Order that does not discharge to a surface water.

A spill of 1,000 gallons or greater that spills out of a lateral and is caused by a failure or blockage in the sanitary sewer system, is a Category 2 spill.

• Category 3 Spill

A Category 3 spill is a spill of equal to or greater than 50 gallons and less than 1,000 gallons, from or caused by a sanitary sewer system regulated under the General Order that does not discharge to a surface water.

A spill of equal to or greater than 50 gallons and less than 1,000 gallons that spills out of a lateral and is caused by a failure or blockage in the sanitary sewer system is a Category 3 spill.

• Category 4 Spill

A Category 4 spill is a spill of less than 50 gallons, from or caused by a sanitary sewer system regulated under this General Order that does not discharge to a surface water.

A spill of less than 50 gallons that spills out of a lateral and is caused by a failure or blockage in the sanitary sewer system is a Category 4 spill.

• Private Lateral Sewage Discharges (PLSD)

Discharges of untreated or partially treated wastewater resulting from blockages or other problems within a privately owned sewer lateral connected to the Enrollee’s sanit ary se w er s y s t em o r fr o m ot her pri v a t e se w er asse t s. PLS Ds t ha t t he Enrollee becomes aware of may be voluntarily reported to the CIWQS Online SSS Database.

G. SSS Documentation and Reporting

All SSSs should be thoroughly investigated and documented for use in managing the sewer system and meeting established reporting requirements. The procedures for investigating and documenting SSSs are:

1. Internal SSS Reporting Procedures

• The Wastewater Duty Person will ﬁll out the Wastewater Spill Report and turn it in to the Wastewater Supervisor.

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• The Wastewater Supervisor will notify the Utilities Services Manager.

• The Wastewater Supervisor will investigate the SSS within 10 days of the incident.

• The SSS will be entered in the Service Call Database.

Category 1 SSSs

• The Wastewater Duty Person will immediately notify the Wastewater Supervisor.

• The Wastewater Duty Person or Supervisor will notify Cal OES within two hours of being notiﬁed of the spill.

• The Wastewater Supervisor/Lead will notify the Environmental Safety Section and the Utilities Services Manager.

• The Wastewater Duty Person will ﬁll out the Wastewater Spill Report and turn it in to the Wastewater Supervisor.

• The Wastewater Supervisor will meet with ﬁeld crew(s) at the site of the SSS event to assess the situation and to document the conditions with photos.

• The Wastewater Supervisor will investigate the SSS the following workday.

• The incident will be entered into the Service Call Database.

2. External SSS Reporting Procedures

The CIWQS electronic reporting system must be used for reporting SSS information to the SWRCB whenever possible. The following describes the external notiﬁcation, reporting, and certiﬁcation requirements based on the type of SSS.

Category 1 SSS

• Within two hours of becoming aware of any Category 1 SSS, notify Cal OES and obtain a control number.

• Submit a draft report within three business days of becoming aware of the SSS and certify within 15 calendar days of SSS end date.

• SSS Technical Report: Submit within 45 calendar days after the end date of any Category 1 SSS in which 50,000 gallons or greater are spilled to surface waters.

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• The Utilities Services Manager will update the certiﬁed report as new or changed information becomes available.

Category 2 SSSs

Submit a draft report within three days of becoming aware of the SSS and certify within 15 calendar days of the SSS end date.

Category 3 SSSs

Report and certify all Category 3 spills to the online CIWQS Sanitary Sewer System Database within 30 calendar days after the end of the month in which the spills occurred.

Category 4 SSSs

Report and certify the estimated total spill volume exiting the sanitary sewer system, and the total number of all Category 4 spills to the online CIWQS Sanitary Sewer System Database, within 30 calendar days after the end of the month in which the spills occurred.

Private Lateral Sewage Discharges

The Utilities Services Manager may report private lateral SSSs using CIWQS at the City’s discretion, specifying that the sewage discharge occurred and was caused by a private lateral and identifying the responsible party (other than the City) if known.

No-Spill Certiﬁcation (Monthly)

Within 30 calendar days after the end of each calendar month, if there are no SSSs during the calendar month, the Utilities Services Manager will submit an electronic report that the City did not have any SSSs. The Utilities Services Manager will certify the report.

CIWQS Not Available

In the event that CIWQS is not available, the Utilities Services Manager will fax all r e q u i r e d i n f o r m a ti o n t o t h e R W Q C B o ﬃ c e i n a c c o r d a n c e w i t h t h e ti m e s c h e d u l e s identiﬁed above. In such event, the City will submit the appropriate reports using CIWQS as soon as practical.

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3. Internal SSS Documentation

• Category 1, 2, 3, and 4 SSSs

The Wastewater Duty Person will complete a work order and the Wastewater Spill Report and provide copies to Wastewater Supervisor.

The Wastewater Supervisor will prepare a ﬁle for each individual SSS. The ﬁle should include the following information:

— Initial service call information.
— Wastewater Service Call Report form.
— Service Call Database report.
— Copies of the CIWQS Report forms.
— Volume estimate and methods used to arrive at the estimate. Guidance for volume estimating is provided in the SERP .
— Failure analysis investigation results.
— Photographs of spill/cleanup.
— Monitoring Results (if applicable)

The following are optional for Category 2 and 3 SSSs:

— Appropriate maps showing the spill location.
— Water quality sampling and test results if applicable.

• Private Lateral SSSs

The Wastewater Duty Person will complete the Wastewater Spill Report and provide copies to Wastewater Supervisor.

A separate ﬁle will be prepared for each individual SSS, at the Wastewater Supervisor’s discretion. The ﬁle should include any relevant information from the above list.

4. External SSS Record Keeping Requirements

The SSSGO requires that individual SSS records be maintained by the City for a minimum of ﬁve years from the date of the SSS. This period may be extended when r e q u e s t e d b y a R e g i o n a l W a t e r B o a r d E x e c u ti v e O ﬃ c e r . A l l r e c o r d s s h a l l b e m a d e available for review upon State or Regional Water Board staﬀ’s request.

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Records shall be retained for all SSSs, including, but not limited to, the following when applicable:

• Record of Certiﬁed report.

• All original recordings for continuous monitoring instrumentation.

• Service call records and complaint logs of calls received by the City.

• SSS calls.

• SSS records.

• Steps that have been and will be taken to prevent the SSS from recurring and a schedule to implement those steps.

• Work orders, work completed, and any other maintenance records from the previous ﬁve years which are associated with responses and investigations of system problems related to SSSs.

• A list and description of complaints from customers or others from the previous ﬁve years.

• Documentation of performance and implementation measures for the previous ﬁve years.

If water quality samples are required by the SSSGO or environmental or health regulatory agencies, or if voluntary monitoring is conducted by the City or its agent(s), as a result of any SSS, records of monitoring information shall include:

• The date, exact place, and time of sampling or measurements. • The individual(s) who performed the sampling or measurements. • The date(s) analyses were performed.
• The individual(s) who performed the analyses.
• The analytical technique or method used.
• The results of such analyses.

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H. Equipment

This section provides a list of City-specialized equipment used to support the SERP .

VacCon Trucks

• The VacCon trucks are used to clear blockages in gravity sewers and to vacuum up spilled sewage. The trucks can also be used for wash down and cleanup.

Portable Pumps and Hoses

• Portable pumps ranging in size from 2” to 6” are used to pump spilled sewage and/or contaminated water back into the sewer system.

Street Sweeper

• A street sweeper may be used to assist in the cleanup of roadways and parking lots.

Closed-Circuit Television (CCTV) Inspection Units

• Portable CCTV Inspection Units (lateral cameras) are used to conduct condition assessments and as an aid to determine the root cause of SSSs. Each of the two VacCon trucks is equipped with a lateral camera for this purpose. As noted above, mainline CCTV inspections are currently provided by outside contractors.

Emergency Response Truck(s)/Trailer

• In addition to the equipment on the VacCon trucks, the City has an Emergency Response trailer with equipment and supplies needed for eﬀective SSS response.

Equipment includes (but is not limited to) an electric eel rodding machine, sectional rods, generator, lights, portable pump and hoses, air compressor, sewer plugs, cones, barricades, measuring devices, and spill containment and clean-up materials.

Photographic Equipment

• A digital or disposable camera is used to record the conditions upon arrival.

Ammonia Strips

• Ammonia strips are used to identify presence or absence of sewage. They are maintained in each vehicle and replaced every 22 months or at the manufacturer’s recommended hold time.

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I. Training

This section provides information on the training that is required to support this SERP .

1. Initial and Annual Refresher Training

All Wastewater Operations personnel and Duty personnel are trained in sewage spill response, which includes this Plan. The training is updated annually.

All employees who may have a role in responding to, reporting, and/or mitigating a SSS receive training. All new employees receive training before they are placed in a position where they may have to respond. Current employees receive annual refresher training on this Plan and the procedures to be followed.

2. SSS Response Exercises

Periodic training exercises are held to ensure that employees are up to date on the procedures, to verify the equipment is in working order, and the required materials are readily available. The training exercises cover scenarios typically observed during sewer-related emergencies (e.g., mainline blockage, mainline failure, force main failure, pump station failure, and lateral blockage). The results and the observations d u r i n g t h e e x e r c i s e s a r e b e r e c o r d e d , a n d a c ti o n i t e m s a r e t r a c k e d t o e n s u r e completion.

3. Record Keeping

Records are kept of all training that is provided in support of this Plan. The records for all scheduled training courses and for each spill emergency response training event include date, time, place, content, name of trainer(s), and names of attendees.

J. Contractors Working On City Sewer Facilities

All contractors working on City sewer facilities are required to develop an SERP to cover their work. All contractor personnel are required to receive training on the Contractor’s SERP and to follow the Contractor’s SERP in the event that they cause or observe an SSS.

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ELEMENT 7: SEWER PIPE BLOCKAGE CONTROL PROGRAM
The Sewer System Management Plan must include procedures for the evaluation of the Enrollee’s service area to determine whether a sewer pipe blockage control program is needed to control fats, oils, grease, rags, and debris. If the Enrollee determines that a program is not needed, the Enrollee shall provide justiﬁcation in its Plan for why a program is not needed. The procedures must include, at minimum:

• An implementation plan and schedule for a public education and outreach program that promotes proper disposal of pipe-blocking substances;

• A plan and schedule for the disposal of pipe -blocking substances generated within the sanitary sewer system service area. This may include a list of acceptable disposal facilities and/or additional facilities needed to adequately dispose of substances generated within a sanitary sewer system service area;

• The legal authority to prohibit discharges to the system and identify measures to prevent spills and blockages;

• Requirements to install grease -removal devices (such as traps or interceptors), design standards for the removal devices, maintenance requirements, Best Management Practice (BMP) requirements, recordkeeping, and reporting requirements;

• Authority to inspect grease-producing facilities, enforcement authorities, and whether the Enrollee has suﬃcient staﬀ to inspect and enforce the fats, oils, and grease ordinance;

• An identiﬁcation of sanitary sewer system sections subject to fats, oils, and grease blockages and establishment of a cleaning schedule for each section; and

• Implementation of source control measures for all sources of fats, oils, and grease reaching the sanitary sewer system for each section identiﬁed above.

A. Nature and Extent of FOG Problem

The City has approximately 235 commercial and industrial sources of grease discharging to its collection system. The largest concentration of commercial grease sources are the food service establishments (FSEs) located in the vicinity of Castro Street. M any of the FSEs are located in older buildings and have undersized grease traps. The industrial grease generators include institutional facilities, such as hospitals and large cafeterias, located at businesses in the industrial areas of the City. Based o n the number and types of grease - generating facilities in the City, a FOG Control Program has been implemented.

The FOG Control Program includes maintenance, monitoring, inspection, enforcement, and outreach elements. Since these elements are performed by two City departments (Fire and City of Mountain View June 2025
Sewer System Management Plan 40 of 51
Public Works Departments), implementation of the FOG Control Program requires a coordinated eﬀort. Knowledge of the collection system and the locations that are heavily impacted by FOG discharges was critical for developing a control strategy. Ongoing routine maintenance and implementation of source control measures are the approaches for minimizing the threat of sewer spills caused by FOG blockages.

The low incidence of FOG -related SSSs indicates that the City ’s historical management of FOG dischargers, combined with the City’s sewer system preventive maintenance program a n d F O G C o n t r o l P r o g r a m , h a s b e e n e ﬀ e c ti v e , a n d t h a t t h e r e i s n o b a s i s f o r i n c r e a s i n g substantially increasing current FOG control activities. However, the City will continue to collect information on all FOG -related SSSs and will evaluate the need for any additional FOG control measures on an ongoing basis.

B. FOG Control Program

The City ’s FOG Control Program includes the following elements: Legal Authority, Preventive Maintenance, Commercial FOG Control and Inspections, Public Outreach, and Listing of Grease Disposal Locations.

1. Legal Authority

Legal authority for the FOG Control Program is addressed in Section III of the SSMP .

The City has the necessary legal authority for the Program. In exercising that authority, the City may apply diﬀerent requirements to new sources than to existing sources.

2. Preventive Maintenance

The Wastewater Operation is responsible for preventative maintenance of the wastewater collection system. The Wastewater crew responds to collection system blockages, sewer spills, conducting preventative maintenance in areas that have a history of proble ms, and general preventive maintenance for the entire system. A listing of known FOG Hot Spots is provided in Appendix E. The listed gravity sewers segments are included on the one-, three -, six -, and 12 -month cleaning lists, an example of which is inclu ded in Appendix B. I f a n e w F O G b l o c k a g e l o c a ti o n i s observed, staﬀ will monitor the location and determine if a repair is needed, or it should be added to the Hot Spot list. Cleaning frequencies may subsequently be adjusted by the Wastewater Supervisor based on observed r esults. Wastewater Operations provides feedback on FOG problems to the Fire and Environmental Protection Division and will request review and/or adjustments to grease trap cleaning frequencies when necessary.

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3. Commercial FOG Control and Inspections

The Fire and Environmental Protection Division, Environmental Safety Section of the Fire Department is responsible for inspecting grease -generating facilities and for compliance actions that may stem from those inspections. Grease -generating facilities ar e i n s p e c t e d a t a f r e q u e n c y o f e v e r y t w o y e a r s . P r o b l e m a r e a s m a y b e inspected more frequently. Inspections are conducted to ensure that grease-removal devices are adequately maintained and that record -keeping requirements are met.

The BMPs to reduce gre ase discharges are also promoted during inspections.

Enforcement actions are implemented where maintenance is inadequate or grease - removal devices are either not functioning properly or are seriously undersized. Staﬀ resources are suﬃcient to conduct inspections and implement other elements of the Program.

The Environmental Safety Section will continue to ensure that the grease -generating facilities adequately maintain their grease -removal devices, promote the application of grease BMPs where appropriate, and initiate enforcement actions. Enforcement actions will include:

• Requiring more frequent maintenance of grease-removal devices;

• Requiring training on application of grease BMPs;

• Requiring installation of grease-removal devices;

• Requiring the installation of larger grease-removal devices/grease interceptors;

• Notices of Violation (NOVs), Compliance Orders, or Administrative Citations, as necessary.

4. Public Education and Outreach

The City of Mountain View also partners with the City of Palo Alto Regional Water Quality Control Plant to do outreach regarding proper disposal of FOG. Outreach activities are ongoing and include:

• “Tabling” at local grocery stores during the holiday seasons to provide information to residents on proper disposal of FOG.

• Distributing grease scrapers and FOG control information to residents/visitors at City events throughout the year (Art & Wine Festival, Thursday Night Live events).

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• Displaying posters in City Hall during Public Works Week regarding FOG control and FOG-related spills and response.

• Distribution of BMP posters and brochures to FSEs during routine and referral inspections involving FOG control and FOG spills.

The Bay Area Clean Water Agencies (BACWA) maintains an archive of public education materials for FOG at: https://bacwa.org/document-category/bappg-fog/ .

5. Grease Disposal Locations

A listing of FOG haulers/disposal sites for use by grease haulers doing business within the City is provided in Appendix D. A more comprehensive, regionwide listing of interceptor and grease trap service providers is maintained by the Union Sanitary District, and can be found at:
unionsanitary.com/businesses/restaurants-
program/service-providers.

In addition, the California Department of Food and Agriculture maintains listings of collection centers and transporters at:
https://apps1.cdfa.ca.gov/IKG/
Transporters.aspx.

The City’s conclusion is that there is adequate local capacity to dispose of grease from commercial sources within the City at this time.

ELEMENT 8: SYSTEM EVALUATION, CAPACITY ASSURANCE AND CAPITAL

IMPROVEMENTS
The Plan must include procedures and activities for:

• Routine evaluation and assessment of system conditions; • Capacity assessment and design criteria;
• Prioritization of corrective actions; and
• A capital improvement plan.

8.1 System Evaluation and Condition Assessment

The Plan must include procedures to:

• Evaluate the sanitary sewer system assets utilizing the best practices and technologies available;

• Identify and justify the amount (percentage) of its system for its condition to be assessed each year;
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• Prioritize the condition assessment of system areas that:

— Hold a high level of environmental consequences if vulnerable to collapse, failure, blockage, capacity issues, or other system deﬁciencies;

— Are located in or within the vicinity of surface waters, steep terrain, high groundwater elevations, and environmentally sensitive areas;

— Are within the vicinity of a receiving water with a bacterial -related impairment on the most current Clean Water Act Section 303(d) List;

• Assess the system conditions using visual observations, video surveillance , and/or other comparable system inspection methods;

• Utilize observations/evidence of system conditions that may contribute to exiting of sewage from the system which can reasonably be expected to discharge into a water of the state;

• Maintain documents and recordkeeping of system evaluation and condition assessment inspections and activities; and

• Identify system assets vulnerable to direct and indirect impacts of climate change, including, but not limited to: sea level rise; ﬂooding and/or erosion due to increased storm volumes, frequency, and/or intensity; wildﬁres; and increased power disruptions.

The City uses CCTV and operator visual inspections to assess the collection system condition. CCTV inspections are performed by a qualiﬁed contractor annually covering an average of 100,000 to 120,000 linear feet of sewer main. This pace maintains an eight-year cycle to inspect all of the City sewer mains with the exception of the City ’s three trunk mains, which are on a nine-year cycle. The City also allows for additional as-needed CCTV segments in each annual contract to inspect problematic or high-risk mainlines identiﬁed by staﬀ.

While performing sewer main ﬂushing, City staﬀ can visually inspect manholes and system performance while cleaning the pipelines . Through the ﬂushing program, staﬀ can check all collection system mains at least every two years. Areas with history of backups or other issues are included on the one-, three-, six-, or 12-month hot spot lists which give staﬀ more frequent opportunity to check for problems.

The City is analyzing the eﬀects of climate change on all assets. The primary concerns are power outages and sea level rise impacts at the SPS. Currently, the SPS has both redundant power supplies through an onsite diesel generator and a gravity bypass system which City of Mountain View June 2025
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automatically bypasses the SPS during a loss of power to the site . In addition, the City has a Sea Level Rise Adaptation Capital Improvement Program approved by City Council in 2021 to prepare the City for sea level rise. One of these projects have been completed, a few are about to start construction, and some are in design or planning phases.

8.2 Capacity Assessment and Design Criteria

The Plan must include procedures to identify system components that are experiencing or contributing to spills caused by hydraulic deﬁciency and/or limited capacity, including procedures to identify the appropriate hydraulic capacity of key system elements for:

• Dry-weather peak-ﬂow conditions that cause or contributes to spill events;

• The appropriate design storm(s) or wet weather events that causes or contributes to spill events;

• The capacity of key system components; and

• Identify the major sources that contribute to the peak ﬂows associated with sewer spills. The capacity assessment must consider:

— Data from existing system condition assessments, system inspections, system audits, spill history, and other available information;

— Capacity of ﬂood -prone systems subject to increased inﬁltration and inﬂow, under normal local and regional storm conditions;

— Capacity of systems subject to increased inﬁltration and inﬂow due to larger and/or higher-intensity storm events as a result of climate change;

— I n c r e a s e s o f e r o s i v e f o r c e s i n c a n y o n s a n d s t r e a m s n e a r u n d e r g r o u n d a n d aboveground system components due to larger and/or higher -intensity storm events;

— Capacity of major system elements to accommodate dry weather peak -ﬂow conditions, and updated design storm and wet weather events; and

— Necessary redundancy in pumping and storage capacities.

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A. System Evaluation and Capacity Assurance Plan

1. Evaluation—Collection System Master Plan and General Plan

The most recent Sewer Master Plan update was completed in August 2022. The master planning eﬀort evaluated the capacity of the existing sanitary sewer system assets and provided capacity design criteria for future assets.

The 2022 Sewer Master Plan study included hydraulic modelling of the entire system using the Info Works Model. Flow projections were developed for average and peak dry-weather ﬂow conditions, and adjusted (calibrated) using ﬂow data collected in monitoring stud ies conducted in 2014 and 2021. Wet- weather ﬂow projections incorporated estimates of rainfall- dependent inﬁltration/inﬂow based on a 10 -year storm. For purposes of the model, conservative criteria were used to identify current or future capac ity deﬁciencies. (For pipes 12 ” or smaller, a maximum of 1/2 full at peak wet weather ﬂow; for pipes greater than 12 ”, a maximum 3/4 full at peak wet weather ﬂow) . The model results predicated current or future capacity deﬁciencies in a relatively small percentage (approximately 4%) of the pipes based on these criteria. As indicated in the performance data provided in Appendix G, no SSSs have been attributed to actual capacity deﬁciencies since formal tracking of SSS causes was initiated in 2008.

Findings from the Master Plan are used to inform the City ’s General Plan and Precise Plan planning eﬀorts and for ongoing monitoring of potential capacity - deﬁcient line segments. The Master Plan is generally updated every 10 years.

The City ’s 2030 General Plan, adopted in 2012, identiﬁed “target” areas for redevelopment. As part of the California Environmental Quality Act (CEQA) requirements, the General Plan and its associated Utility Impact Study evaluated the long -term impacts to the collection system and developed a list of recommended CIP projects for the projected conditions in 2030. Project-speciﬁc plans (Precise Plans) and their associated Utility Impact Studies (as required by CEQA) are used to update and reﬁne the General Plan’s impact analysis and list of recommended projects. The recommendations are factored into the City ’s CIP planning and budgeting process. The references listed at the end of this section include several recently completed Utility Impact Studies.

The City is at or near build -out. Projects within the City ’s service area are primarily redevelopment projects. The City requires that redevelopment project proponents evaluate the oﬀ -site capacity impacts of their project through an engineering study and commit to providing oﬀ-site improvements as part of the project approval process. This is the primary means through which capacity deﬁciencies resulting from redevelopment are addressed.

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2. Evaluation—Hydraulic Monitoring

The City periodically monitors the ﬂow in its sanitary sewer system to identify and/or track previously identiﬁed capacity deﬁciencies and to monitor the quantity of inﬂow and inﬁltration present. Previous ﬂow monitoring eﬀorts were conducted in 2005, 2014, and 2021. The ﬂow monitoring data is used to calibrate the City’s wastewater system hydraulic model and is incorporated into Sewer Master Plan updates . Information from periodic monitoring and subsequent hydraulic modeling is used as a check on ﬂow projections, and to inform decisions regarding capacity -related CIP projects (or redevelopment requirements) as those projects come closer to implementation.

3. Design Criteria

The capacity-related design criteria used by the City are included in Appendix C.

8.3 Prioritization of Corrective Action

The ﬁndings of the condition assessments and capacity assessments must be used to prioritize corrective actions. Prioritization must consider the severity of the consequences of potential spills.

A. Condition-Based Rehabilitation and Replacement Program

The Public Works Department maintains a proactive , condition-based pipeline rehabilitation and replacement program to support the long -term reliability and performance of the sanitary sewer system. This program is informed by multiple data sources, including pipeline age, maintenance history, regular CCTV inspection results, ﬁeld observation records, and input from Wastewater Operations staﬀ.

These data sources are used to identify structural deﬁciencies in the system, which are then documented and compiled into a Prioritized Repairs List . This list is maintained and regularly updated by the Wastewater Supervisor and is shared with the EEC Section to support development of sewer main rehabilitation and replacement projects under the City’s Capital Improvement Program (CIP).

The Public Works Department applies a risk -based methodology that evaluates both the likelihood and consequence of failure . Factors considered include pipe material, diameter, depth, structural condition, frequency of maintenance needs, proximity to sensitive receptors (e.g., schools or waterways), and potential impacts on traﬃc or essential services. This framework allows the City to allocate resources eﬃciently on the highest-risk segments of the system and prevent failures before they occur.

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In addition to condition and risk assessment, coordination with other planned infrastructure eﬀorts, such as the City ’s street resurfacing and annual water main replacement programs, is a key component of project and program planning . This integrated approach minimizes construction -related disruption and optimizes cost - eﬀectiveness by combining eﬀorts where feasible.

Funding for condition-based rehabilitation and replacement projects is primarily from the City’s Wastewater and Wastewater Capacity Funds, which is supported by sewer service charges.

B. Capacity Improvement Program

In addition to condition -based eﬀorts, the Public Works Department implements a capacity-based improvement program to ensure the sanitary sewer system has suﬃcient hydraulic capacity to convey existing and projected ﬂows under both dry and wet weather conditions. This program is guided by the Sanitary Sewer Master Plan, which is periodically updated using hydraulic modeling, ﬂow monitoring, land use data, and development projections.

Capacity deﬁciencies are identiﬁed through master planning analysis, which evaluates system performance under peak-ﬂow conditions, including the eﬀects of inﬂow and inﬁltration (I/I) and anticipated growth . When deﬁciencies are identiﬁed, capital improvement projects are developed and programmed to upgrade undersized sewer mains or pump stations.

Capacity improvement projects are prioritized based on system modeling results, severity of hydraulic constraints, regulatory compliance needs, and anticipated impacts from future development. These projects are also included in the City ’s CIP and coordinated with other utility and paving programs where feasible.

Improvements may be phased to align with development timelines or combined with condition-based projects to reduce disruption and enhance cost-eﬀectiveness.

The Public Works Department coordinates closely with the Planning Division and development review process to ensure infrastructure needs keep pace with growth.

Updates on capacity planning eﬀorts and implementation progress are shared through the Sanitary Sewer Master Plan and related regulatory reporting.

Funding for capacity improvement projects is also primarily from the City ’s Wastewater and Wastewater Capacity Funds and supplemented, when appropriate, by development impact fees and other applicable funding mechanisms that reﬂect the growth-related nature of these improvements.

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8.4 Capital Improvement Plan

The capital improvement plan must include the following items:

• Project schedules , including completion dates for all portions of the Capital Improvement Program;

• Internal and external project funding sources for each project; and

• Joint coordination between operation and maintenance staﬀ, and engineering staﬀ/consultants during planning, design, and construction of capital improvement projects; and Interagency coordination with other impacted utility agencies.

A. Capital Improvement Program

The City includes publicly funded capacity enhancement projects in its Capital Improvement Program. There were no known capacity deﬁciencies at the time this SSMP was originally prepared ; however, the 20 22 Master Plan identiﬁed some potential capacity deﬁciencies, which are being addressed in future capital projects.

B. Schedule

The schedule for the City ’s condition-based rehabilitation/replacement and capacity enhancement projects is included in the City’s Capital Improvement Program. A list of completed and planned sewer projects from the CIP are in Appendix F.

ELEMENT 9: MONITORING, MEASUREMENT AND PROGRAM

MODIFICATIONS
The Plan must include an Adaptive Management section that addresses Plan implementation eﬀectiveness and the steps for necessary Plan improvement, including:

• Maintaining relevant information, including audit ﬁndings, to establish and prioritize appropriate Plan activities;

• Monitoring the implementation and measuring the eﬀectiveness of each Plan Element;

• Assessing the success of the preventive operation and maintenance activities;

• Updating Plan procedures and activities, as appropriate, based on results of monitoring and performance evaluations; and

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• Identifying and illustrating spill trends, including spill frequency, locations, and estimated volumes.

A. Performance Measures

The indicators that the City will use to measure the performance of its wastewater collection system and the eﬀectiveness of its SSMP are as follows. Indicators will be compiled on a calendar-year basis.

• Total number of SSSs, with breakdown by gravity system, pump stations, and force mains.

• Number of SSSs by each cause (roots, grease debris, pipe failure, capacity, pump station failures, and other).

• Total SSS volumes, volume reaching surface water, volume recovered, and percent recovered.

• Preventive maintenance annual metrics (wastewater service calls, sewer main stoppages, footages cleaned).

B. Performance Data

The City has tabulated data for the selected performance measures provided in Appendix G.

Overall, for SSSs that do occur, recovery rates are very high, and spills rarely reach surface water . These observations, coupled with the relatively low number of SSSs since 2008 and absence of any SSSs in some years, suggests that the City’s O&M Program is highly eﬀective in minimizing SSSs and protecting surface waters from their impacts.

C. Performance Monitoring and Program Changes

The City will evaluate the performance of its wastewater collection system at least annually using the performance measures identiﬁed in Subsection C, Performance Measures, above.

The City will update the performance data in Appendix G at the time of the evaluation.

The City may use other performance measures in its evaluation . The City will prioritize its actions and initiate changes to this SSMP and the related programs based on the results of the evaluation.

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ELEMENT 10: INTERNAL AUDITS
The Plan shall include internal audit procedures, appropriate to the size and performance of the system, for the Enrollee to comply with S ection 5.4 (Sewer System Management Plan Audits) of this General Order.

The City will audit its implementation and compliance with the provisions of this SSMP every two years. The last audit was completed in 2024 for the audit period of calendar years 2021-2023.

Audits will be conducted by a team consisting of City staﬀ selected from the Public Works Department. The audit team may include members from other areas of the City, outside agencies or contractors. The scope of the audit will cover each of the major sections of the SSMP. An Audit Checklist, based on the requirements in the SSSGO, is used. Copies of the two most recent audits are included in Appendix H.

ELEMENT 11: COMMUNICATION PROGRAM
The Plan must include procedures for the Enrollee to communicate with:

• The public for spills and discharges resulting in closures of public areas, or that enter a source of drinking water, and the development, implementation, and update of its Plan, including opportunities for public input to Plan implementation and updates.

• Owners/operators of systems that connect into the Enrollee’s system, including satellite systems, for system operation, maintenance, and capital improvement-related activities.

A. Collection System Public Information

The City will make information on the performance of its sanitary sewer system performance available for review . The performance information will include the performance indicators listed in Section IX of the SSMP; Monitoring, Measurement, and Program Modiﬁcations. The information, which will be periodically updated, is available through a Public Records request.

The City reports SSSs electronically to the CIWQS. The electronic SSS data, as well as information regarding regulatory actions, is available at:
waterboards.ca.gov/
ciwqs/publicreports.html.

The above website has links to the CIWQS Public Spill Incidence Map, an interactive GIS - based application that provides summary data on all reported SSS and to the Interactive SSS Report application, through which the public can query the CIWQS database fo r all information submitted in SSS reports . In performing a CIWQS query, the easiest identiﬁer to use for the City is the WDID number.

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The City will direct interested parties to the CIWQS public access website . Agency information for the Interactive SSS Report is as follows:

• Sanitary Sewer System Agency Name: Mountain View City • Sanitary Sewer System Name: Mountain View City CS
• WDID No.: 2SSS10111

NOTE: In running the Interactive SSS Report query, only one of the above identiﬁers is needed. The other two can be left blank.

The City will report the performance of its sanitary sewer system to the City Council annually in an informational memorandum. The performance information will include the performance indicators listed in Section IX of the SSMP; Monitoring, Measurement, and Program Modiﬁcations, and will be compiled annually.

B. Systems Connected to the Mountain View Collection System

The City of Los Altos wastewater collection system discharges to the City ’s sanitary sewer system. The City has a written agreement with the City of Los Altos covering its discharges into the City’s sewer system. The City maintains up-to-date contact information for staﬀ at the City of Los Altos and the PARWQCP .

APPENDIX A

DOCUMENTS RELATED TO

SSMP GOAL AND INTRODUCTION, ORGANIZATION,

AND LEGAL AUTHORITY

1. Information on Sewer System Infrastructure (from Sewer Master Plan))

2. City
Staff with SSMP Area of Responsibility

3. Wastewater Service Call Report (internal City document)

4. State Water Resources Control Board Order No. WQ 2022-0103-DWQ Statewide Waste Discharge Requirements General Order for Sanitary Sewer Systems, December 6, 2022
City of Mountain View
Sewer Master Plan
October 2022

Page 3 ends

www.hydroscience.com
Table 3-1: Wastewater Collection System Pipelines by Material and Diameter Diam
(in)
Length of Pipe (ft)
CIP CIPP CMP DIP HDPE PVC RCP STL VCP Unknown Total Total as %
4-in - - - - - 58 - - 220 441 719 <1%
6-in 113 - - - - 2,586 104 70 129,026 570 132,469 16%
8-in 888 - - 941 63,222 34,256 - - 370,069 1,375 470,751 57% 10-in 335 - - 281 3,822 2,985 - - 65,600 22 73,045 9%
12-in - - - - 5,194 3,729 - - 38,981 - 47,904 6%
14-in - - - - 2,345 - - - - - 2,345 <1%
15-in 242 - - - 1,611 593 6 - 35,603 16 38,071 5%
16-in 304 - - - 1,222 - - - - - 1,526 <1%
18-in 319 - 1,338 - - 14 - - 6,962 24 8,657 1%
21-in - 353 - - - - - - 12,715 - 13,068 2%
24-in - - - - - - - - 2,278 15 2,293 <1%
27-in - - - - - - 4,402 - 3,883 - 8,285 1%
30-in - - - - - - 3,605 - 3,333 - 6,938 <1%
33-in - - - - - - 5,811 - - - 5,811 <1%
36-in - 573 - - - 455 3,019 - - - 4,047 <1%
39-in - 1,417 - - - - 323 - - - 1,740 <1%
42-in - 1,886 - - - - 5,349 63 - - 7,298 <1%
48-in - - - - - - 59 - - 28 87 <1%
Unknown - - - - - - - - - 3,432 3,432 <1%
Total 2,201 4,229 1,338 1,222 77,416 44,676 22,678 133 668,670 5,923 828,486 - Total as
% <1% <1% <1% <1% 9% 5% 3% <1% 81% <1% - -
Notes:

1. CIP = Cast Iron Pipe

2. CIPP = Cured-in-Place Pipe

3. CMP = Corrugated Metal Pipe

4. DIP = Ductile Iron Pipe

5. HDPE = High-Density Polyethylene

6. PVC = Polyvinyl Chloride

7. RCP = Reinforced Concrete Pipe

8. STL = Steel

9. VCP = Vitrified Clay Pipe
Information on Sewer System Infrastructure
(from 2022 Sewer Master Plan)
City Staff with SSMP Area of Responsibility
Name Title/Department SSMP Area of Responsibility
Bob Bleisner
(
650) 903-6270
Wastewater Supervisor DPW
Public Services Div.

Sewer System Management Plan
Goal and Introduction
Bob Bleisner
(650) 903-6270
Wastewater Supervisor DPW Pulic
Services Div. Organization
Lisa Au
(650)
903-
6329
Assistant DPW Director DPW
Public Services Div. Legal Authority
Bob Bleisner
(650) 703-6270
Wastewater Supervisor DPW
Public Services Div.

Operations and Maintenance
Program
Tina Tseng
(650) 903-6187
Principle Engineer - EEC
DPW Public Services Div.

Design and Performance
Provisions
Bob Bleisner
(650) 903-6270
Wastewater Supervisor DPW
Public Services Div. Spill Emergency Response Plan
Brian T. Jones
(650) 903-2874
Environmental Safety Coordinator
FD Fire and Environmental
Protection Division
Sewer Pipe Blockage Control
Program
Mike Vasquez
(650) 903-6081
Utilities Services Manager DPW
Public Services Div.

System Evaluation, Capacity
Assurance and Capital
Improvements Plan
Mike Vasquez
(650) 903-6081
Utilities Services Manager DPW
Public Services Div.

Monitoring, Measurement, and
Program Modifications
Mike Vasquez
(650) 903-6081
Utilities Services Manager DPW
Public Services Div. Internal Audits
Mike Vasquez
(650) 903-6081
Utilities Services Manager DPW
Public Services Div. Communication Program
Lisa Au
(650) 903-6329
Assistant DPW Director DPW
Public Services Div. SSMP Certification
Mike Vasquez
(650) 903-6081
Utilities Services Manager DPW
Public Services Div.

SSMP Update Log
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1 STATE WATER RESOURCES CONTROL BOARD
1001 I Street, Sacramento, California 95814
ORDER WQ 2022-0103-DWQ

STATEWIDE WASTE DISCHARGE REQUIREMENTS

GENERAL ORDER FOR SANITARY SEWER SYSTEMS
This Order was adopted by the State Water Resources Control Board on December 6, 2022.

This Order shall become effective 180 days after the Adoption Date of this General Order, on June 5, 2023.

The Enrollee shall comply with the requirements of this Order upon the Effective Date of this General Order.

This General Order does not convey any property rights of any sort or any exclusive privileges.

The requirements prescribed herein do not authorize the commission of any act causing injury to persons or property, protect the Enrollee from liability under federal, state, or local laws, nor create a vested right for the Enrollee to continue the discharge of waste.

CERTIFICATION
I, Jeanine Townsend, Clerk to the Board, do hereby certify that this Order with all attachments is a full, true, and correct copy of the Order adopted by the State Water Board on December 6, 2022.

AYE: Chair E. Joaquin Esquivel
Vice Chair Dorene D’Adamo
Board Member Sean Maguire
Board Member Laurel Firestone
Board Member Nichole Morgan
NAY: None
ABSENT: None
ABSTAIN: None
for
Jeanine Townsend
Clerk to the Board

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
2 Table of Contents

1. Introduction .................................................................................................................... 4

2. Regulatory Coverage and Application Requirements .................................................... 5

2.1. Requirements for Continuation of Existing Regulatory Coverage ....................... 5

2.2. Requirements for New Regulatory Coverage ...................................................... 5

2.3. Regulatory Coverage Transfer ............................................................................ 7

3. Findings ......................................................................................................................... 7

3.1. Legal Authorities ................................................................................................. 7

3.2. General ............................................................................................................. 11

3.3. Water Quality Control Plans, Policies and Resolutions ..................................... 14

3.4. California Environmental Quality Act ................................................................. 16

3.5. State Water Board Funding Assistance for Compliance with Water Board Water Quality Orders ................................................................................................... 16

3.6. Notification to Interested Parties ....................................................................... 17

4. Prohibitions .................................................................................................................. 17

4.1 Discharge of Sewage from a Sanitary Sewer System ....................................... 17

4.2. Discharge of Sewage to Waters of the State..................................................... 17

4.3. Discharge of Sewage Creating a Nuisance ....................................................... 18

5. Specifications ............................................................................................................... 18

5.1. Designation of a Legally Responsible Official ................................................... 18

5.2. Sewer System Management Plan Development and Implementation ............... 18

5.3. Certification of Sewer System Management Plan and Plan Updates ................ 19

5.4. Sewer System Management Plan Audits .......................................................... 19

5.5. Six-Year Sewer System Management Plan Update .......................................... 21

5.6. System Resilience ............................................................................................. 22

5.7. Allocation of Resources .................................................................................... 22

5.8. Designation of Data Submitters ......................................................................... 22

5.9. Reporting Certification ....................................................................................... 22

5.10. System Capacity ............................................................................................... 23

5.11. System Performance Analysis .......................................................................... 23

5.12. Spill Emergency Response Plan and Remedial Actions ................................... 23

5.13. Notification, Monitoring, Reporting and Recordkeeping Requirements ............. 24

5.14. Electronic Sanitary Sewer System Service Area Boundary Map ....................... 26

5.15. Voluntary Reporting of Spills from Privately-Owned Sewer Laterals and/or Private Sanitary Sewer Systems ................................................................................... 26

5.16. Voluntary Notification of Spills from Privately-Owned Laterals and/or Systems to the California Office of Emergency Services ..................................................... 27

5.17. Unintended Failure to Report ............................................................................ 27

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3 5.18. Duty to Report to Water Boards ........................................................................ 27

5.19. Operation and Maintenance ............................................................................... 27

6. Provisions .................................................................................................................... 27

6.1. Enforcement Provisions .................................................................................... 27

6.2. Other Regional Water Board Orders ................................................................. 30

6.3. Sewer System Management Plan Availability ................................................... 31

6.4. Entry and Inspection ......................................................................................... 31

Table of Attachments
Attachment A – Definitions ..................................................................................................... A-1 Attachment B – Application for Enrollment ............................................................................. B-1 Attachment C - Notice of Termination ..................................................................................... C-1 Attachment D – Sewer System Management Plan – Required Elements .............................. D-1 Attachment E1 – Notification, Monitoring, Reporting and Recordkeeping Requirements ..... E1-1 Attachment E2 – Summary of Notification, Monitoring and Reporting Requirements ........... E2-1 Attachment F – Regional Water Quality Control Board Contact Information .......................... F-1

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4 1. INTRODUCTION
This General Order regulates sanitary sewer systems designed to convey sewage. For the purpose of this Order, a sanitary sewer system includes, but is not limited to, pipes, valves, pump stations, manholes, siphons, wet wells, diversion structures and/or other pertinent infrastructure, upstream of a wastewater treatment plant headworks. A sanitary sewer system includes:
• Laterals owned and/or operated by the Enrollee;
• Satellite sewer systems; and/or
• Temporary conveyance and storage facilities, including but not limited to temporary piping, vaults, construction trenches, wet wells, impoundments, tanks and diversion structures.

Sewage is untreated or partially treated domestic, municipal, commercial and/or industrial waste (including sewage sludge), and any mixture of these wastes with inflow or infiltration of stormwater or groundwater, conveyed in a sanitary sewer system.

Sewage contains high levels of suspended solids, non-digested organic waste, pathogenic bacteria, viruses, toxic pollutants, nutrients, oxygen-demanding organic compounds, oils, grease, pharmaceuticals, and other harmful pollutants.

For the purpose of this General Order, a spill is a discharge of sewage from any portion of a sanitary sewer system due to a sanitary sewer system overflow, operational failure, and/or infrastructure failure. Sewage and its associated wastewater spilled from a sanitary sewer system may threaten public health, beneficial uses of waters of the State, and the environment.

This General Order serves as statewide waste discharge requirements and supersedes the previous State Water Resources Control Board (State Water Board) Order 2006-0003-DWQ and amendments thereafter. All sections and attachments of this General Order are enforceable by the State Water Board and Regional Water Quality Control Boards (Regional Water Boards). Through this General Order, the State Water Board requires an Enrollee to:
• Comply with federal and state prohibitions of discharge of sewage to waters of the State, including federal waters of the United States;
• Comply with specifications, and notification, monitoring, reporting and recordkeeping requirements in this General Order that implement the federal Clean Water Act, the California Water Code (Water Code), water quality control plans (including Regional Water Board Basin Plans) and policies;
• Proactively operate and maintain resilient sanitary sewer systems to prevent spills; • Eliminate discharges of sewage to waters of the State through effective implementation of a Sewer System Management Plan;
• Monitor, track, and analyze spills for ongoing system-specific performance improvements; and
• Report noncompliance with this General Order per reporting requirements.

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5 An Enrollee is a public, private, or other non-governmental entity that has obtained approval for regulatory coverage under this General Order, including:
• A state agency, municipality, special district, or other public entity that owns and/or operates one or more sanitary sewer systems:
o greater than one (1) mile in length (each individual sanitary sewer system); o one (1) mile or less in length where the State Water Board or a Regional Water Board requires regulatory coverage under this Order; or • A federal agency, private company, or other non-governmental entity that owns and/or operates a sanitary sewer system of any size where the State Water Board or a Regional Water Board requires regulatory coverage under this Order in response to a history of spills, proximity to surface water, or other factors supporting regulatory coverage.

For the purpose of this Order, a sanitary sewer system includes only systems owned and/or operated by the Enrollee.

2. REGULATORY COVERAGE AND APPLICATION REQUIREMENTS

2.1. Requirements for Continuation of Existing Regulatory Coverage To continue regulatory coverage from previous Order 2006-0003-DWQ under this General Order, within the 60-days-prior-to the Effective Date of this General Order, the Legally Responsible Official of an existing Enrollee shall electronically certify the Continuation of Existing Regulatory Coverage form in the online California Integrated Water Quality System (CIWQS) Sanitary Sewer System Database. The Legally Responsible Official will receive an automated CIWQS-issued Notice of Applicability email, confirming continuation of regulatory coverage under this General Order. All regulatory coverage under previous Order 2006-0003-DWQ will cease on the Effective Date of this Order.

An Enrollee continuing existing regulatory coverage is not required to submit a new application package or pay an application fee for enrollment under this General Order.

The annual fee due date for continued regulatory coverage from previous Order 2006-0003-DWQ to this General Order remains unchanged.

A previous Enrollee of Order 2006-0003-DWQ that fails to certify the Continuation of Existing Regulatory Coverage form in the online CIWQS database by the Effective Date of this Order is considered a New Applicant, and will not have regulatory coverage for its sanitary sewer system(s) until:
• A new application package for system(s) enrollment is submitted per section 2.2 (Requirements for New Regulatory Coverage) below; and
• The new application package is approved per section 2.2.2 (Approval of Application Package (For New Applicants Only)).

2.2. Requirements for New Regulatory Coverage
No later than 60 days prior to commencing and/or assuming operation and maintenance responsibilities of a sanitary sewer system, a duly authorized representative that

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6 maintains legal authority over the public or private sanitary sewer system is required to enroll under this General Order by submitting a complete application package as specified below and as provided in Attachment B (Application for Enrollment Form) of this General Order.

Unless required by a Regional Water Board, a public agency that owns a combined sewer system subject to the Combined Sewer Overflow Control Policy (33 U.S. Code § 1342(q)), is not required to enroll, under this Order, the portions of its sanitary sewer system(s) that collects combined sanitary wastewater and stormwater.

2.2.1. Application Package Requirements
The Application for Enrollment package for new applicants must include the following items:
• Application for Enrollment Form. The form in Attachment B of this General Order must be completed, signed, and certified by a Legally Responsible Official, in accordance with section 5.1 (Designation of a Legally Responsible Official) of this General Order. If an electronic Application for Enrollment form is available at the time of application, a new applicant shall submit its application form electronically; and
• Application Fee. A fee payable to the “State Water Resources Control Board” in accordance with the Fee Schedule in the California Code of Regulations, Title 23, section 2200, or subsequent fee regulations updates.

The application fee for this General Order is based on the sanitary sewer system’s threat to water quality and complexity designations of category 2C or 3C, which is assigned based on the population served by the system. The current Fee Schedule for sanitary sewer systems is listed under subdivision (a)(2) at the following website:

Fee Schedule (https://www.waterboards.ca.gov/resources/fees/water_quality/).

2.2.2. Approval of Application Package (For New Applicants Only) The Deputy Director of the State Water Board, Division of Water Quality (Deputy Director) will consider approval of each complete Application for Enrollment package.

The Deputy Director will issue a Notice of Applicability letter which serves as approved regulatory coverage for the new Enrollee.

If the submitted application package is not complete in accordance with section 2.2.1 (Application Package Requirements) of this General Order, the Deputy Director will send a response letter to the applicant outlining the application deficiencies. The applicant will have 60 days from the date of the response letter to correct the application deficiencies and submit the identified items necessary to complete the application package to the State Water Board.

2.2.3. Electronic Reporting Account for New Enrollee
Within 30 days after the date of the Approval of Complete Application Package for System Enrollment, a duly authorized representative for the Enrollee shall obtain a CIWQS Sanitary Sewer System Database user account by clicking the “User Registration” button and following the directions on the CIWQS Login Page

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7 (https://ciwqs.waterboards.ca.gov). If additional assistance is needed to establish an online CIWQS user account, contact State Water Board staff by email at [email protected]. The online user account will provide the Enrollee secure access to the online CIWQS database for electronic reporting.

2.3. Regulatory Coverage Transfer
Regulatory coverage under this General Order is not transferable to any person or party except after an existing Enrollee submits a written request for a regulatory coverage transfer to the Deputy Director, at least 60 days in advance of any proposed system ownership transfer. The written request must include a written agreement between the existing Enrollee and the new Enrollee containing:
• Acknowledgement that the transfer of ownership is solely of an existing system with an existing waste discharge identification (WDID) number; • The specific ownership transfer date in which the responsibility and regulatory coverage transfer between the existing Enrollee and the new Enrollee becomes effective; and
• Acknowledgement that the existing Enrollee is liable for violations occurring up to the ownership transfer date and that the new Enrollee is liable for violations occurring on and after the ownership transfer date.

The Deputy Director will consider approval of the written request. If approved, the Deputy Director will issue a Notice of Applicability letter which serves as an approved transfer of regulatory coverage to the new Enrollee.

3. FINDINGS

3.1. Legal Authorities

3.1.1. Federal and State Regulatory Authority
The objective of the Clean Water Act is to restore and maintain the chemical, physical, and biological integrity of the waters of the United States (33 U.S.C. 1251). The Water Code authorizes the State Water Board to implement the Clean Water Act in the State and to protect the quality of all waters of the State (Water Code sections 13000 and 13160).

3.1.2. Discharge of Sewage
A discharge of untreated or partially treated sewage is a discharge of waste as defined in Water Code section 13050(d) that could affect the quality of waters of the State and is subject to regulation by waste discharge requirements issued pursuant to Water Code section 13263 and Chapter 9, Division 3, Title 23 of the California Code of Regulations.

A discharge of sewage may pollute and alter the quality of the waters of the State to a degree that unreasonably affects the beneficial uses of the receiving water body or facilities that serve those beneficial uses (Water Code section 13050(l)(1)).

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8 3.1.3 Water Boards Authority to Require Technical Reports, Monitoring, and Reporting Water Code sections 13267 and 13383 authorize the Regional Water Boards and the State Water Board to establish monitoring, inspection, entry, reporting, and recordkeeping requirements. Water Code section 13267(b), authorizes the Regional Water Boards to “require any person who has discharged, discharges, or is suspected of having discharged or discharging, or who proposes to discharge waste within its region… or is suspected of having discharged or discharging, or who proposes to discharge, waste outside of its region that could affect the quality of water within its region shall furnish, under penalty of perjury, technical or monitoring reports which the regional board requires…In requiring those reports, the regional board shall provide the person with a written explanation with regard to the need for the reports and shall identify the evidence that supports requiring that person to provide the reports.” Water Code section 13267(f) authorizes the State Water Board to require this information if it consults with the Regional Water Boards and determines that it will not duplicate the efforts of the Regional Water Boards. The State Water Board has consulted with the Regional Water Boards and made this determination.

The technical and monitoring reports required by this General Order and Attachment E (Notification, Monitoring, Reporting and Recordkeeping Requirements) are necessary to evaluate and ensure compliance with this General Order. The effort to develop required technical reports will vary depending on the system size and complexity and the needs of the specific technical report. The burden and cost of these reports are reasonable and consistent with the interest of the state in protecting water quality, which is the primary purpose of requiring the reports.

Water Code section 13383(a) authorizes the Water Boards to “establish monitoring, inspection, entry, reporting, and recordkeeping requirements… for any person who discharges, or proposes to discharge, to navigable waters, any person who introduces pollutants into a publicly owned treatment works, any person who owns or operates, or proposes to own or operate, a publicly owned treatment works or other treatment works treating domestic sewage, or any person who uses or disposes, or proposes to use or dispose, of sewage sludge.” Section 13383(b) continues, “the state board or the regional boards may require any person subject to this section to establish and maintain monitoring equipment or methods, including, where appropriate, biological monitoring methods, sample effluent as prescribed, and provide other information as may be reasonably required.”
Reporting of spills from privately owned sewer laterals and systems pursuant to section

5.15 (Voluntary Reporting of Spills from Privately-Owned Sewer Laterals and/or Private Sanitary Sewer Systems) of this General Order is authorized by Water Code section 13225(c) and encouraged by the State Water Board, wherein a local agency may investigate and report on any technical factors involved in water quality control provided the burden including costs of such reports bears a reasonable relationship to the need for the report and the benefits to be obtained therefrom. The burden of reporting private spills under section 5.15 (Voluntary Reporting of Spills from Privately-Owned Sewer Laterals and/or Private Sanitary Sewer Systems) is minimal and is outweighed by the benefit of providing Regional Water Boards an opportunity to respond to these spills

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9 when an Enrollee, which in many cases has a contractual relationship with the owner of the private system, has knowledge of the spills.

3.1.4. Water Board Authority to Prescribe General Waste Discharge Requirements Water Code section 13263(i) provides that the State Water Board may prescribe general waste discharge requirements for a category of discharges if the State Water Board finds or determines that:
• The discharges are produced by the same or similar operations; • The discharges involve the same or similar types of waste; • The discharges require the same or similar treatment standards; and • The discharges are more appropriately regulated under general waste discharge requirements than individual waste discharge requirements.

Since 2006, the State Water Board has been regulating over 1,100 publicly owned sanitary sewer systems (See section 3.1.5 (Previous Statewide General Waste Discharge Requirements) of this General Order). California also has a large unknown number of unregulated privately owned sanitary sewer systems. All waste conveyed in publicly owned and privately owned sanitary sewer systems (as defined in this General Order) is comprised of untreated or partially treated domestic waste and/or industrial waste. Generally, sanitary sewer systems are designed and operated to convey waste by gravity or under pressure; system-specific design elements and system-specific operations do not change the common nature of the waste, the common threat to public health, or the common impacts on water quality. Spills of waste from a sanitary sewer system prior to reaching the ultimate downstream treatment facility are unauthorized and enforceable by the State Water Board and/or a Regional Water Board. Therefore, spills from sanitary sewer systems are more appropriately regulated under general waste discharge requirements.

As specified in Water Code sections 13263(a) and 13241, the implementation of requirements set forth in this Order is for the reasonable protection of past, present, and probable future beneficial uses of water and the prevention of nuisance. The requirements implement the water quality control plans (Basin Plans) for each Regional Water Board and take into account the environmental characteristics of sewer service areas and hydrographic units within the state. Additionally, the State Water Board has considered water quality conditions that could reasonably be achieved through the coordinated control of all factors that affect water quality, costs associated with compliance with these requirements, the need for developing housing within California, and the need to protect sources of drinking water and other water supplies.

3.1.5. Previous Statewide General Waste Discharge Requirements On May 2, 2006, the State Water Board adopted Order 2006-0003-DWQ serving as Waste Discharge Requirements pursuant to Article 4, Chapter 4, Division 7 of the Water Code (commencing with section 13260) for inadvertent discharges to waters of the State. Order 2006-0003-DWQ prohibited discharges of untreated or partially treated sewage. Order 2006-0003-DWQ also required system-specific management, operation, and maintenance of publicly owned sewer systems greater than one mile in length.

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10 To decrease the impacts on human health and the environment caused by sewage spills, the previous Order required enrollees to develop a rehabilitation and replacement plan that identifies system deficiencies and prioritizes short-term and long-term rehabilitation actions. The previous Order also required enrollees to:

1. Maintain information that can be used to establish and prioritize appropriate Sewer System Management Plan activities; and

2. Implement a proactive approach to reduce spills.

The previous Order required Sewer System Management Plan elements for “the proper and efficient management, operation, and maintenance of sanitary sewer systems, while taking into consideration risk management.”
On July 30, 2013, the State Water Board amended General Order 2006-0003-DWQ with Order WQ 2013-0058-EXEC, Amending Monitoring and Reporting Program for Statewide General Waste Discharge Requirements for Sanitary Sewer Systems.

Many enrollees of Order 2006-0003-DWQ have already implemented proactive measures to reduce sewage spills. Other enrollees, however, still need technical assistance and funding to improve sanitary sewer system operation and maintenance for the reduction of sewage spills.

3.1.6. Existing Memorandum of Agreement with California Water Environment Association
The California Water Environment Association is a nonprofit organization dedicated to providing water industry certifications, training, and networking opportunities. The Association’s Technical Certification Program provides accredited sanitary sewer system operator certification for collection system operators and maintenance workers.

On February 10, 2016, the State Water Board entered into a collaborative agreement with the Association titled Memorandum of Agreement Between the California State Water Resources Control Board and the California Water Environment Association - Training Regarding Requirements Set Forth in Statewide General Waste Discharge Requirements for Sanitary Sewer Systems. The Memorandum sets forth collaborative training necessary for regulated sanitary sewer system personnel to operate and maintain a well operating system and ensure full compliance with statewide sewer system regulations.

On March 15, 2018, the State Water Board and the California Water Environment Association amended the existing Memorandum of Agreement to include collaborative outreach and expand training needs associated with further updates to Water Board regulations for sanitary sewer systems. The State Water Board encourages further Agreement updates as necessary to support improved sewer system operations and the professionalism of collection system operators.

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11 3.2. General

3.2.1. Waters of the State
Waters of the State include any surface water or groundwater, including saline waters, within the boundaries of the state as defined in Water Code section 13050(e), and are inclusive of waters of the United States.

3.2.2. Sanitary Sewer System Spill Threats to Public Health and Beneficial Uses Sewage contains high levels of suspended solids, pathogenic organisms, toxic pollutants, nutrients, oxygen-demanding organic compounds, oil and grease and other pollutants. Sewage spills may cause a public nuisance, particularly when sewage is discharged to areas with high public exposure such as streets and surface waters used for drinking, irrigation, fishing, recreation, or other public consumption or contact uses.

More specifically, sanitary sewer spills may:
• Adversely affect aquatic life and/or threaten water quality when reaching receiving waters;
• Inadvertently release trash, including plastics;
• Impair the recreational use and aesthetic enjoyment of surface waters by polluting surface water or groundwater;
• Threaten public health through direct public exposure to bacteria, viruses, intestinal parasites, and other microorganisms that can cause serious illness such as gastroenteritis, hepatitis, cryptosporidiosis, and giardiasis; • Negatively impact ecological receptors and biota within surface waters; and • Cause nuisance including odors, closure of beaches and recreational areas, and property damage.

Sanitary sewer system spills may pollute receiving waters and threaten beneficial uses of surface water and groundwater. Potentially threatened beneficial uses include, but are not limited to the following (with associated acronym representations as included in statewide water quality control plans and Regional Water Boards’ Basin Plans):
• Municipal and Domestic Supply (MUN)
• Water Contact Recreation (REC-1) and Non-Contact Water Recreation (REC-2) • Cold Freshwater Habitat (COLD)
• Warm Freshwater Habitat (WARM)
• Native American Culture (CUL)
• Wildlife Habitat (WILD)
• Rare, Threatened, or Endangered Species (RARE)
• Spawning, Reproduction, and/or Early Development (SPWN) • Wetland Habitat (WET)
• Agricultural Supply (AGR)
• Estuarine Habitat (EST)

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12 • Commercial and Sport Fishing (COMM)
• Subsistence Fishing (SUB)
• Tribal Tradition and Culture (CUL)
• Tribal Subsistence Fishing (T-SUB)
• Aquaculture (AQUA)
• Marine Habitat (MAR)
• Preservation of Biological Habitats of Special Significance (BIOL) • Migration of Aquatic Organisms (MIGR)
• Shellfish Harvesting (SHELL)
• Industrial Process Supply (PROC)
• Industrial Service Supply (IND)
• Hydropower Generation (POW)
• Navigation (NAV)
• Flood Peak Attenuation/Flood Water Storage (FLD)
• Water Quality Enhancement (WQE)
• Fresh Water Replenishment (FRSH)
• Groundwater Recharge (GWR)
• Inland Saline Water Habitat (SAL)

3.2.3. Proactive Sanitary Sewer System Management to Eliminate Spill Causes Finding 3 of the previous Order, 2006-0003-DWQ, states: “Sanitary sewer systems experience periodic failures resulting in discharges that may affect waters of the state.

There are many factors (including factors related to geology, design, construction methods and materials, age of the system, population growth, and system operation and maintenance), which affect the likelihood of an SSO [sanitary sewer overflow].

A proactive approach that requires Enrollees to ensure a system-wide operation, maintenance, and management plan is in place will reduce the number and frequency of SSOs within the state. This approach will in turn decrease the risk to human health and the environment caused by SSOs.”
Many spills are preventable through proactive attention on sanitary sewer system management using the best practices and technologies available to address major causes of spills, including but not limited to:
• Blockages from sources including but not limited to:
o Fats, oils and grease;
o Tree roots;
o Rags, wipes and other paper, cloth and plastic products; and o Sediment and debris.
• Sewer system damage and exceedance of sewer system hydraulic capacity from identified system-specific environmental, and climate-change impacts, including but not limited to:

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13 o Sea level rise impacts including flooding, coastal erosion, seawater intrusion, tidal inundation and submerged lands;
o Increased surface water flows due to higher intensity rain events; o Flooding;
o Wildfires and wildfire induced impacts;
o Earthquake induced damage;
o Landslides; and
o Subsidence.
• Infrastructure deficiencies and failures, including but not limited to:
o Pump station mechanical failures;
o System age;
o Construction material failures;
o Manhole cover failures;
o Structural failures; and
o Lack of proper operation and maintenance.
• Insufficient system capacity (temporary or sustained), due to factors including but not limited to:
o Excessive and/or increased storm or groundwater inflow/infiltration; o Insufficient capacity due to population increase and/or new connections from industrial, commercial and other system users; and
o Stormwater capture projects utilizing a sanitary sewer system to convey stormwater to treatment facilities for reuse.
• Community impacts, including but not limited to:
o Power outages;
o Vandalism; and
o Contractor-caused or other third party-caused damages.

3.2.4. Underground Sanitary Sewer System Leakage
Portions of some sanitary sewer systems may leak, causing underground exfiltration (exiting) of sewage from the system. Exfiltrated sewage that remains in the underground infrastructure trench and/or the soil matrix, and that does not discharge into waters of the State (surface water or groundwater) may not threaten beneficial uses.

Underground exfiltrated sewage may threaten beneficial uses if discharged to waters of the State. Exfiltrated sewage that discharges to groundwater may impact beneficial uses of groundwater and pollute groundwater supply. Additionally, if in close proximity, exfiltrated sewage may enter into a compromised underground drainage conveyance system that discharges into a water of the United States, or into groundwater that is hydrologically connected to (feeds into) a water of the United States, thus potentially causing: (1) a Clean Water Act violation, (2) threat and impact to beneficial uses, and/or (3) surface water pollution.

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14 3.2.5. Proactive Sanitary Sewer System Management to Reduce Inflow and Infiltration Excessive inflow (stormwater entering) and infiltration (groundwater seepage entering) to sanitary sewer systems is preventable through proactive sewer system management using the best practices and technologies available. The efficiency of the downstream wastewater treatment processes is dependent on the performance of the sanitary sewer system. When the structural integrity of a sanitary sewer system deteriorates, high volumes of inflow and infiltration can enter the sewer system. High levels of inflow and infiltration increase the hydraulic load on the downstream treatment plant, which can reduce treatment efficiency, lead to bypassing a portion of the treatment process, cause illegal discharge of partially treated effluent, or in extreme situations make biological treatment facilities inoperable (e.g., wash out the biological organisms that treat the waste).

3.3. Water Quality Control Plans, Policies and Resolutions The nine Regional Water Boards have adopted region-specific water quality control plans (commonly referred to as Basin Plans) that designate beneficial uses, establish water quality objectives, and contain implementation programs and policies to achieve those objectives. The State Water Board has adopted statewide water quality control plans, policies and resolutions establishing statewide water quality objectives, implementation programs and initiatives.

3.3.1. State Water Board Antidegradation Policy
On October 28, 1968, the State Water Board adopted Resolution 68-16, titled Statement of Policy with Respect to Maintaining High Quality of Waters in California, which incorporates the federal antidegradation policy. Resolution 68-16 requires that existing water quality be maintained unless degradation is justified based on specific findings.

The continued prohibition of sewage discharges from sanitary sewer systems into waters of the State aligns with Resolution 68-16. A sewage discharge from sanitary sewers to waters of the State is prohibited by this Order. Therefore, this Order does not allow degradation of waters of the State. In addition, this Order: (1) further expands the existing prohibition of sewage discharges to include waters of the State, in addition to waters of the United States as provided in previous Order 2006-0003-DWQ, and (2) enhances the ability for Water Board enforcement of violations of the established prohibitions.

3.3.2. State Water Board Sources of Drinking Water Policy On May 19,1988, the State Water Board adopted Resolution 88-63 (amended on February 1, 2006), titled Sources of Drinking Water, establishing state policy that all waters of the State, with certain exceptions, are suitable or potentially suitable for municipal or domestic supply.

3.3.3. State Water Board Cost of Compliance Resolution
On September 24, 2013, the State Water Board adopted Resolution 2013-0029, titled Directing Actions in Response to Efforts by Stakeholders on Reducing Costs of

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15 Compliance While Maintaining Water Quality Protection. Through this resolution, the State Water Board committed to continued stakeholder engagement in identifying and implementing measures to reduce costs of compliance with regulatory orders while maintaining water quality protection and improving regulatory program outcomes.

3.3.4. State Water Board Human Right to Water Resolution On February 16, 2016, the State Water Board adopted Resolution 2016-0010, titled Adopting the Human Right to Water as a Core Value and Directing its Implementation in Water Board Programs and Activities, addressing the human right to water as a core value and directing Water Board programs to implement requirements to support safe drinking water for all Californians.

On November 16, 2021, the State Water Board adopted Resolution 2021-0050 titled Condemning Racism, Xenophobia, Bigotry, and Racial Injustice, and Strengthening Commitment to Racial Equity, Diversity, Inclusion, Access, and Anti-racism. Among other actions, through Resolution 2021-0050, the State Water Board, in summary as corresponding to this General Order, reaffirms its commitment to its Human Right to Water resolution, upholding that every human being in California deserves safe, clean, affordable, and accessible water for human consumption, cooking, and sanitation purposes. Resolution 2021-0050 provides the State Water Board commitment to:
• Protect public health and beneficial uses of waterbodies in all communities, including communities disproportionately burdened by wastes discharge of waste to land and surface water;
• Restore impaired surface waterbodies and degraded aquifers; and • Promote multi-benefit water quality projects.

Through Resolution 2021-0050, the State Water Board also commits to expanding implementation of its Climate Change Resolution to address the disproportionate effects of extreme hydrologic conditions and sea-level rise on Black, Indigenous, and people of color communities, prioritizing:
• The right to safe, clean, affordable, and accessible drinking water and sanitation; • Sustainable management and protection of local groundwater resources; • Healthy watersheds; and
• Access to surface waterbodies that support subsistence fishing.

On June 7, 2022, the State Water Board adopted a Resolution, titled Authorizing the Executive Director or Designee to Enter into One or More Multi-Year Contracts Up to a Combined Sum of $4,000,000 for a Statewide Wastewater Needs Assessment, supporting the equitable access to sanitation for all Californians and implementation of Resolutions 2016-0010 and 2021-0050.

This General Order supports the State Water Board priority in collecting a comprehensive set of data for California’s wastewater systems, including sanitary sewer systems. Data reported per the requirements of this Order will be used with data from other Water Boards’ programs, to further develop criteria and create a statewide risk

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
16 framework to prioritize critical funding and infrastructure investments for California’s most vulnerable populations, including disadvantaged or severely disadvantaged communities with inadequate or failing sanitation systems and threatened access to healthy drinking water supplies.

3.3.5. State Water Board Open Data Resolution
On July 10, 2018, the State Water Board adopted Resolution 2018-0032, titled Adopting Principles of Open Data as a Core Value and Directing Programs and Activities to Implement Strategic Actions to Improve Data Accessibility and Associated Innovation, directing regulatory programs to assure all monitoring and reporting requirements support the State Water Boards’ Open Data Initiative.

3.3.6. State Water Board Response to Climate Change
On March 7, 2017, the State Water Board adopted Resolution 2017-0012, titled Comprehensive Response to Climate Change, requiring a proactive response to climate change in all California Water Board actions, with the intent to embed climate change consideration into all programs and activities.

3.4. California Environmental Quality Act
The adoption of this Order is an action to reissue general waste discharge requirements that is exempt from the California Environmental Quality Act (Public Resources Code section 21000 et seq.) because it is an action taken by a regulatory agency to assure the protection of the environment and the regulatory process involves procedures for protection of the environment (Cal. Code Regs., Title 14, section 15308). In addition, the action to adopt this Order is exempt from CEQA pursuant to Cal. Code Regs., Title 14, section 15301, to the extent that it applies to existing sanitary sewer collection systems that constitute “existing facilities” as that term is used in sections 15301 and 15302, to the extent that it results in the repair or replacement of existing systems involving negligible or no expansion of capacity.

3.5. State Water Board Funding Assistance for Compliance with Water Board Water Quality Orders
The State Water Board, Division of Financial Assistance administers the implementation of the State Water Board financial assistance programs, per Board-adopted funding policies. Among other funding areas, the Division administers loan and grant funding for the planning and construction of wastewater and water recycling facilities per funding program-specific policies and guidelines. Applicants may apply for Clean Water State Revolving Fund low-interest loan, Small Community Wastewater grant funding assistance, and other funding available at the time of application, for some of the costs associated with complying with this General Order.

Funding applicants may obtain further information regarding current funding opportunities, and Division of Financial Assistance staff contact information at the following website: Financial Assistance Funding - Grants and Loans | California State Water Resources Control Board.
(https://www.waterboards.ca.gov/water_issues/programs/grants_loans/)

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
17 Section 13477.6 of the Water Code authorizes the Small Community Grant Fund.

The Small Community Grant Fund allows the State Water Board to provide grant funding assistance to small, disadvantaged communities and small severely disadvantaged communities that may not otherwise be able to afford a loan or similar financing for projects to comply with requirements of this General Order. The State Water Board also considers loan forgiveness on a disadvantaged community-specific basis.

For disadvantaged communities’ wastewater needs, the State Water Board places priority on the funding of projects that address:
• Public health;
• Violations of waste discharge requirements and National Pollutant Discharge Elimination System (NPDES) permits;
• Providing sewer system service to existing septic tank owners; and • High priority public health and water quality concerns identified by a Regional Water Board.

3.6. Notification to Interested Parties
On January 31, 2022, the State Water Board notified interested parties and persons of its intent to reissue Sanitary Sewer Systems General Order 2006-0003-DWQ by issuing a draft General Order for a 60-day public comment period. State Water Board staff conducted extensive stakeholder outreach and encouraged public participation in the adoption process for this General Order. On March 15, 2022, the State Water Board held a public meeting to hear and consider oral public comments. The State Water Board considered all public comments prior to adopting this General Order.

THEREFORE, IT IS HEREBY ORDERED, that pursuant to Water Code sections 13263, 13267, and 13383 this General Order supersedes Order 2006-0003-DWQ, Order WQ 2013-0058-EXEC, and any amendments made to these Orders thereafter, except for enforcement purposes and to meet the provisions contained in Division 7 of the Water Code (commencing with section 13000) and regulations adopted thereunder, and the provisions of the Clean Water Act and regulations and guidelines adopted thereunder, the Enrollee shall comply with the requirements in this Order.

4. PROHIBITIONS

4.1 Discharge of Sewage from a Sanitary Sewer System
Any discharge from a sanitary sewer system that has the potential to discharge to surface waters of the State is prohibited unless it is promptly cleaned up and reported as required in this General Order.

4.2. Discharge of Sewage to Waters of the State
Any discharge from a sanitary sewer system, discharged directly or indirectly through a drainage conveyance system or other route, to waters of the State is prohibited.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
18 4.3. Discharge of Sewage Creating a Nuisance
Any discharge from a sanitary sewer system that creates a nuisance or condition of pollution as defined in Water Code section 13050(m) is prohibited.

5. SPECIFICATIONS

5.1. Designation of a Legally Responsible Official
The Enrollee shall designate a Legally Responsible Official that has authority to ensure the enrolled sanitary sewer system(s) complies with this Order, and is authorized to serve as a duly authorized representative. The Legally Responsible Official must have responsibility over management of the Enrollee’s entire sanitary sewer system, and must be authorized to make managerial decisions that govern the operation of the sanitary sewer system, including having the explicit or implicit duty of making major capital improvement recommendations to ensure long-term environmental compliance.

The Legally Responsible Official must have or have direct authority over individuals that:
• Possess a recognized degree or certificate related to operations and maintenance of sanitary sewer systems, and/or
• Have professional training and experience related to the management of sanitary sewer systems, demonstrated through extensive knowledge, training and experience.

For example, a sewer system superintendent or manager, an operations manager, a public utilities manager or director, or a district engineer may be designated as a Legally Responsible Official.

The Legally Responsible Official shall complete the electronic CIWQS “User Registration” form (https://ciwqs.waterboards.ca.gov/ciwqs/newUser.jsp). A Legally Responsible Official that represents multiple enrolled systems shall complete the electronic CIWQS “User Registration” form for each system.

The Enrollee shall submit any change to its Legally Responsible Official, and/or change in contact information, to the State Water Board within 30 calendar days of the change by emailing [email protected] and copying the appropriate Regional Water Board as provided in Attachment F (Regional Water Quality Control Board Contact Information) of this General Order.

5.2. Sewer System Management Plan Development and Implementation To facilitate adequate local funding and management of its sanitary sewer system(s), the Enrollee shall develop and implement an updated Sewer System Management Plan.

The scale and complexity of the Sewer System Management Plan, and specific elements of the Plan, must match the size, scale and complexity of the Enrollee’s sanitary sewer system(s). The Sewer System Management Plan must address, at minimum, the required Plan elements in Attachment D (Sewer System Management Plan – Required Elements) of this General Order. To be effective, the Sewer System Management Plan must include procedures for the management, operation, and maintenance of the sanitary sewer system(s). The procedures must: (1) incorporate the

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
19 prioritization of system repairs and maintenance to proactively prevent spills, and (2) address the implementation of current standard industry practices through available equipment, technologies, and strategies.

For an existing Enrollee under Order 2006-0003-DWQ that has certified its Continuation of Existing Regulatory Coverage, per section 2.1 (Requirements for Continuation of Existing Regulatory Coverage) of this General Order:

Within six (6) months of the Adoption Date of this General Order:
• The Legally Responsible Official shall upload the Enrollee’s existing Sewer System Management Plan to the online CIWQS Sanitary Sewer System Database.

For a new Enrollee:

Within twelve (12) months of the Application for Enrollment approval date:
• The governing entity of the new Enrollee shall approve its Sewer System Management Plan; and
• The Legally Responsible Official shall certify and upload its Sewer System Management Plan to the online CIWQS Sanitary Sewer System Database.

5.3. Certification of Sewer System Management Plan and Plan Updates The Legally Responsible Official shall certify and upload its Sewer System Management Plan and all subsequent updates to the online CIWQS Sanitary Sewer System Database.

5.4. Sewer System Management Plan Audits
The Enrollee shall conduct an internal audit of its Sewer System Management Plan, and implementation of its Plan, at a minimum frequency of once every three years. The audit must be conducted for the period after the end of the Enrollee’s last required audit period. Within six months after the end of the required 3-year audit period, the Legally Responsible Official shall submit an audit report into the online CIWQS Sanitary Sewer System Database per the requirements in section 3.10 (Sewer System Management Plan Audit Reporting Requirements) of Attachment E1 of this General Order.

Audit reports submitted to the CIWQS Sanitary Sewer System Database will be viewable only to Water Boards staff.

The internal audit shall be appropriately scaled to the size of the system(s) and the number of spills. The Enrollee’s sewer system operators must be involved in completing the audit. At minimum, the audit must:
• Evaluate the implementation and effectiveness of the Enrollee’s Sewer System Management Plan in preventing spills;
• Evaluate the Enrollee’s compliance with this General Order; • Identify Sewer System Management Plan deficiencies in addressing ongoing spills and discharges to waters of the State; and

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
20 • Identify necessary modifications to the Sewer System Management Plan to correct deficiencies.

The Enrollee shall submit a complete audit report that includes:
• Audit findings and recommended corrective actions;
• A statement that sewer system operators’ input on the audit findings has been considered; and
• A proposed schedule for the Enrollee to address the identified deficiencies.

A new Enrollee of this General Order (that did not have a sanitary sewer system enrolled in the previous State Water Board Order 2006-0003-DWQ) shall conduct its first internal Sewer System Management Plan audit for the time period between the date of submittal of its certified Sewer System Management Plan and the third subsequent December 31st date. The audit report must be submitted into the online CIWQS Sanitary Sewer System Database by July 1 of the following calendar year.

See the following tables for clarification:

Initial Audit Period and Audit Due Date for New Enrollees Audit Period Audit Due Date
New Enrollee
Certified Sewer System Management
Plan Submittal Date
through
the third subsequent December 31st date
July 1st date after
audit period
Example
Certified Sewer System Management
Plan Submittal Date of August 2, 2025
Audit Period of August 2, 2025 through
December 31, 2027
July 1, 2028

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
21 Initial Audit Period for Transition from 2-Year Audit Required in Previous Order 2006-0003-DWQ to 3-Year Audit Required in this General Order Audit Period Audit Due Date
An Enrollee
previously
regulated by Order
2006-003-DWQ
A 3-year period starting from the end of
last required 2-year Audit Period
Within six months
after end of 3-year
Audit Period
Example
Last required Audit Period start date of
August 2, 2021;
Audit Period of August 2, 2021 through
August 1, 2024
February 1, 2025
Three-Year Ongoing Audit Period
Audit Period Audit Due Date
Each Enrollee A 3-year period starting from the end of
last required Audit Period
Within six months
after end of 3-year
Audit Period

5.5. Six-Year Sewer System Management Plan Update
At a minimum, the Enrollee shall update its Sewer System Management Plan every six (6) years after the date of its last Plan Update due date. (For an Enrollee previously regulated by Order 2006-0003-DWQ, the six-year period shall commence on the due date identified in section 3.11 of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this Order. The Updated Sewer System Management Plan must include:
• Elements required in Attachment D (Sewer System Management Plan – Required Elements) of this Order;
• Summary of revisions included in the Plan update based on internal audit findings; and
• Other sewer system management-related changes.

The Enrollee’s governing entity shall approve the updated Plan. The Legally Responsible Official shall upload and certify the approved updated Plan in the online CIWQS Sanitary Sewer System Database in accordance with section 3.11 (Sewer System Management Plan Reporting Requirements) of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order. During the time period in between Plan updates, the Enrollee shall continuously document changes to its Sewer System Management Plan in a change log attached to the Plan.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
22 5.6. System Resilience
The Enrollee shall include and implement system-specific procedures in its Sewer System Management Plan to proactively prioritize: (1) operation and maintenance, (2) condition assessments, and (3) repair and rehabilitation, to address ongoing system resilience, as specified in Attachment D (Sewer System Management Plan – Required Elements) of this General Order.

5.7. Allocation of Resources
The Enrollee shall:
• Establish and maintain a means to manage all necessary revenues and expenditures related to the sanitary sewer system; and
• Allocate the necessary resources to its sewer system management program for:
o Compliance with this General Order,
o Full implementation of its updated Sewer System Management Plan, o System operation, maintenance, and repair, and
o Spill responses.

5.8. Designation of Data Submitters
The Legally Responsible Official may designate one or more individuals as a Data Submitter for reporting of spill data. The Legally Responsible Official shall authorize the designation of Data Submitter(s) through the online CIWQS database (https://ciwqs.waterboards.ca.gov) prior to the individuals establishing a CIWQS user account (https://ciwqs.waterboards.ca.gov/ciwqs/newUser.jsp) and entering spill data into the online CIWQS Sanitary Sewer System Database.

The Legally Responsible Official shall submit any change to its Data Submitter(s), and/or change in Data Submitter contact information, to the State Water Board within 30 calendar days of the change, by emailing [email protected] and copying the appropriate Regional Water Board as provided in Attachment F (Regional Water Quality Control Board Contact Information) of this General Order.

5.9. Reporting Certification
The Legally Responsible Official shall electronically certify, on the Enrollee’s behalf, all applications, reports, the Sewer System Management Plan(s) and corresponding updates, and other information submitted electronically into the online CIWQS Sanitary Sewer System Database, as follows:
“I certify under penalty of perjury under the laws of the State of California that the electronically submitted information was prepared under my direction or supervision.

Based on my inquiry of the person(s) directly responsible for gathering the information, to the best of my knowledge and belief, the information submitted is true, accurate, and complete, and complies with the Statewide Sanitary Sewer Systems General Order.

I am aware that there are significant penalties for submitting false information.”

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
23 Hardcopy submittals to the State Water Board must be accompanied by the above certification statement.

5.10. System Capacity
The Enrollee shall maintain the system capacity necessary to convey: (1) base flows during dry weather conditions, and (2) wet weather peak flows consistent with designated local historic storms. Design storms must take into account system-specific stormwater contributions via inflow and infiltration, and location-specific depth of groundwater and storm frequencies. The Enrollee shall implement capital improvements to provide adequate hydraulic capacity to:
• Meet or exceed the design criteria as defined in the Enrollee’s System Evaluation and Capacity Assurance element of its Sewer System Management Plan; and • Prevent system capacity-related spills, and adverse impacts to the treatment efficiency of downstream wastewater treatment facilities.

5.11. System Performance Analysis
The Enrollee shall include a running 10-year system performance analysis in its Annual Report. The analysis must include two CIWQS-generated graphs presenting the following information:

Graph 1 – Total Spill Volume per Year:

X axis: A 10-year period which includes the current calendar year and the nine previous calendar years;
Y axis: The total spill volume, per Spill Category, for each calendar year.

Graph 2 – Total Number of Spills per Year:

X axis: A 10-year period which includes the current calendar year and the nine previous calendar years;
Y axis: The total number of spills, per Spill Category, for each calendar year.

The current calendar year is the calendar year covered in the Annual Report.

The Enrollee shall generate the graphs in CIWQS, using the existing data in the online CIWQS Sanitary Sewer System Database at the following graph generation link:
(https://ciwqs.waterboards.ca.gov/ciwqs/readOnly/PublicReportSSOServlet?reportActio n=criteria&reportId=sso_operation_report).

5.12. Spill Emergency Response Plan and Remedial Actions For Existing Enrollees (with regulatory coverage under Order 2006-0003-DWQ):

Within six (6) months of the Adoption Date of this General Order, the Enrollee shall update and implement its Spill Emergency Response Plan, per Attachment D, section 6 (Spill Emergency Response Plan) of this General Order.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
24 For New Enrollees:

Within six (6) months of the Application for Enrollment approval date, the Enrollee shall develop and implement a Spill Emergency Response Plan, per Attachment D, section 6 (Spill Emergency Response Plan) of this General Order.

The Enrollee shall certify, in its Annual Report, that its Spill Emergency Response Plan is up to date.

The Spill Emergency Response Plan shall include measures to protect public health and the environment. The Enrollee shall respond to spills from its system(s) in a timely manner that minimizes water quality impacts and nuisance by:
• Immediately stopping the spill and preventing/minimizing a discharge to waters of the State;
• Intercepting sewage flows to prevent/minimize spill volume discharged into waters of the State;
• Thoroughly recovering, cleaning up and disposing of sewage and wash down water; and
• Cleaning publicly accessible areas while preventing toxic discharges to waters of the State.

5.13. Notification, Monitoring, Reporting and Recordkeeping Requirements The Enrollee shall comply with notification, monitoring, reporting, and recordkeeping requirements in Attachment E1 of this General Order.

5.13.1. Spill Categories
Individual spill notification, monitoring and reporting must be in accordance with the following spill categories:
• Category 1 Spill
A Category 1 spill is a spill of any volume of sewage from or caused by a sanitary sewer system regulated under this General Order that results in a discharge to:
o A surface water, including a surface water body that contains no flow or volume of water; or
o A drainage conveyance system that discharges to surface waters when the sewage is not fully captured and returned to the sanitary sewer system or disposed of properly.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
25 A spill from an Enrollee-owned and/or operated lateral that discharges to a surface water is a Category 1 spill; the Enrollee shall report all Category 1 spills per section

3.1 of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.
• Category 2 Spill
A Category 2 spill is a spill of 1,000 gallons or greater, from or caused by a sanitary sewer system regulated under this General Order that does not discharge to a surface water.

A spill of 1,000 gallons or greater that spills out of a lateral and is caused by a failure or blockage in the sanitary sewer system, is a Category 2 spill. • Category 3 Spill
A Category 3 spill is a spill of equal to or greater than 50 gallons and less than 1,000 gallons, from or caused by a sanitary sewer system regulated under this General Order that does not discharge to a surface water.

A spill of equal to or greater than 50 gallons and less than 1,000 gallons, that spills out of a lateral and is caused by a failure or blockage in the sanitary sewer system is a Category 3 spill.
• Category 4 Spill
A Category 4 spill is a spill of less than 50 gallons, from or caused by a sanitary sewer system regulated under this General Order that does not discharge to a surface water.

A spill of less than 50 gallons that spills out of a lateral and is caused by a failure or blockage in the sanitary sewer system is a Category 4 spill.

5.13.2. Annual Report
The Enrollee shall submit an Annual Report (previously termed as Collection System Questionnaire in Order 2006-0003-DWQ) as specified in section 3.9 (Annual Report) of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.

For new Enrollees: Within 30 days of obtaining a CIWQS account, a new Enrollee shall submit its initial Annual Report, as specified in section 3.9 (Annual Report) of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
26 5.14. Electronic Sanitary Sewer System Service Area Boundary Map For continuing enrollees, starting on July 1, 2025, and no later than December 31, 2025:

For new enrollees – no earlier than July 1, 2025, or within 12 months of the Application for Enrollment approval date, whichever date is later:

The Legally Responsible Official shall submit, to the State Water Board, geospatial data detailing the locations of the Enrollee’s sanitary sewer system service area boundary, per the required content and specifications in section 3.8 (Electronic Sanitary Sewer System Service Area Boundary Map) of Attachment E1 of this General Order, for each system identified by a WDID number.

An Enrollee of a disadvantaged community that may need assistance developing an electronic map to comply with this requirement, may contact State Water Board staff for assistance at [email protected].

5.15. Voluntary Reporting of Spills from Privately-Owned Sewer Laterals and/or Private Sanitary Sewer Systems
Within 24 hours of becoming aware of a spill (as described below) from a private sewer lateral or private sanitary sewer system that is not owned/operated by the Enrollee, the Enrollee is encouraged to report the following observations to the online CIWQS Sanitary Sewer System Database at the following link:
https://ciwqs.waterboards.ca.gov:
• A spill equal or greater than 1,000 gallons that discharges (or has a potential to discharge) to a water of the State, or a drainage conveyance system that discharges to waters of the State; or
• Any volume of sewage that discharges (or has a potential to discharge) to surface waters.

In the CIWQS module, the Enrollee is encouraged to identify:
• Time of observation;
• Description of general spill location (for example, street name and cross street names);
• Estimated volume of spill;
• If known, general description of spill destination (for example, flowing into drainage channel, flowing directly into a creek, etc.); and
• If known, name of private system owner/operator.

The CIWQS database will make the name and contact information of the entity voluntarily reporting a private spill, accessible to State and Regional Water Board staff only. The CIWQS database will only make information regarding the actual spill, accessible to the public.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
27 5.16. Voluntary Notification of Spills from Privately-Owned Laterals and/or Systems to the California Office of Emergency Services
Upon observing or acquiring knowledge of any of the following from a private sewer lateral or private sanitary sewer system that is not owned/operated by the Enrollee, the Enrollee is encouraged to notify the California Office of Emergency Services (as provided by Health and Safety Code section 5410 et. seq. and Water Code section 13271), or inform the responsible party that State law requires such notification to the Office of Emergency Services by any person that causes or allows a sewage discharge to waters of the State:
• A spill equal to 1,000 gallons or more that discharges (or has a potential to discharge) to waters of the State, or a drainage conveyance system that discharges to waters of the State; or
• A spill of any volume to surface waters.

5.17. Unintended Failure to Report
If an Enrollee becomes aware that they unintentionally failed to submit relevant facts in any report required in this General Order, the Enrollee shall promptly notify Regional Water Board and State Water Board staff. Regional Water Board contact information is included in Attachment F of this Order. State Water Board staff shall be contacted by email at [email protected] for assistance in formally amending the corresponding report(s) in the online CIWQS Sanitary Sewer System Database.

5.18. Duty to Report to Water Boards
In accordance with Water Code section 13267 and/or section 13383, upon request by the State Water Board Executive Director (or designee) or a Regional Water Board Executive Officer (or designee), the Enrollee shall provide the requested information which the State or Regional Water Board deems necessary to determine compliance with this General Order.

5.19. Operation and Maintenance
To prevent discharges to the environment, the Enrollee shall maintain in good working order, and operate as designed, any facility or treatment and control system designed to contain sewage and convey it to a treatment plant.

6. PROVISIONS

6.1. Enforcement Provisions
The following enforcement provisions are based on existing federal and state regulations, laws and policies, including the federal Clean Water Act, the state Water Code and the State Water Board Enforcement Policy.

6.1.1. Enforceability of Clean Water Act and Water Code Violations Noncompliance with requirements of this General Order or discharging sewage without enrolling in this General Order constitutes a violation of the Water Code and a potential

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
28 violation of the Clean Water Act and is grounds for an enforcement action by the State Water Board or the applicable Regional Water Board. Failure to comply with the notification, monitoring, inspection, entry, reporting, and recordkeeping requirements may subject the Enrollee to administrative civil liabilities of up to $10,000 a day per violation pursuant to Water Code section 13385; up to $1,000 a day per violation pursuant to Water Code section 13268; or referral to the Attorney General for judicial civil enforcement. Discharging waste not in compliance with the requirements of this General Order or the Clean Water Act may subject the Enrollee to administrative civil liabilities up to $10,000 a day per violation and additional liability up to $10 per gallon of discharge not cleaned up after the first 1,000 gallons of discharge; up to $5,000 a day per violation pursuant to Water Code section 13350 or up to $20 per gallon of waste discharged; or referral to the Attorney General for judicial civil enforcement.

6.1.2. Monetary Penalties
The Water Code provides the State and Regional Water Boards the authority to pursue formal enforcement actions, including imposing administrative liability and civil monetary penalties, for non-compliance with the requirements of this General Order and violations of the Clean Water Act.

6.1.3. Falsifying or Failure to Report
The Water Code provides that any person failing or refusing to furnish technical or monitoring program reports, as required under this General Order, or falsifying any information provided in the technical or monitoring reports is subject to administrative liability and civil monetary penalties. Any person who knowingly fails or refuses to furnish technical or monitoring program reports or falsifies any information provided in reports required by this General Order is subject to criminal penalties.

6.1.4. Severability of General Order
The provisions of this General Order are severable; if any provision of this Order, or the application of any provision of this Order to any circumstance, is held invalid, the application of such provision to other circumstances and the remainder of this Order shall not be affected thereby.

6.1.5. Indirect Discharges
In the event that a spill enters into a drainage conveyance system, the Enrollee shall take all feasible steps to prevent discharge of sewage into waters of the State by blocking or redirecting the flow in the drainage conveyance system, removing the sewage from the drainage conveyance system, and cleaning the system in a manner that does not inadvertently impact beneficial uses of the receiving water body.

6.1.6. Water Boards’ Considerations for Discretionary Enforcement Consistent with the State Water Board Enforcement Policy, when considering Water Code section 13327 factors, the State Water Board or a Regional Water Board may consider the Enrollee’s efforts to contain, control, clean up, and mitigate spills. In assessing the factors, the State Water Board or the applicable Regional Water Board will consider:

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
29 • The Enrollee’s compliance with this General Order with a focus on compliance with reporting requirements;
• The Enrollee’s provision of adequate funding to implement the requirements of this General Order;
• The Enrollee’s compliance with providing a complete and updated Sewer System Management Plan;
• The Enrollee’s compliance with implementing its Sewer System Management Plan; • The overall effectiveness of the Enrollee’s Sewer System Management Plan with respect to:
o System management, operation, and maintenance,
o Adequate treatment facilities, sanitary sewer system facilities, and/or components with an appropriate design capacity, to reasonably prevent spills (e.g. adequately enlarging treatment or collection facilities to accommodate growth, infiltration and inflow, etc.),
o Preventive maintenance (including cleaning, root grinding, and fats, oils, and grease control) and source control measures,
o Implementation of backup equipment,
o Inflow and infiltration prevention and control,
o Appropriate sanitary sewer system capacity to prevent spills, and o The Enrollee’s responsiveness to stop and mitigate the impact of the discharge; • The Enrollee’s compliance with identifying the cause of the spill; • The Enrollee’s use of available information and observations to accurately estimate the spill volume and identify the affected or potentially affected receiving waters; • The Enrollee’s thoroughness of cleaning up sewage in drainage conveyance systems after the spill(s);
• The Enrollee’s use of water quality and biological monitoring and assessment to determine the short-term and long-term impacts to beneficial uses and the environment;
• The Enrollee’s follow up actions to improve system performance; • The Enrollee’s implementation of feasible alternatives to prevent spills, such as:
o Use of temporary storage or waste retention,
o Reduction of system inflow and infiltration,
o Collection and hauling of waste to a treatment facility, o Prevention of and/ or containment of spills due to a design storm event identified in the Enrollee’s Sewer System Management Plan,

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
30 o Implementation of available equipment, technologies, strategies, and recommended industry practices for maintaining and managing sewer systems to prevent spills, and contain and eliminate discharges to waters of the State; and • The spill duration and factors beyond the reasonable control of the Enrollee causing the event.

6.1.7. Enforcement Discretion Based on Reporting Compliance Consistent with the State Water Board Enforcement Policy, the State Water Board or a Regional Water Board may consider the Enrollee’s efforts to comply with spill reporting requirements when determining compliance with Water Code section 13267 and section 13383. When assessing Water Code section 13227 factors, the State Water Board or the applicable Regional Water Board will consider:
• The Enrollee’s diligence to comply with all reporting requirements in this General Order;
• The use of best available information for the Enrollee’s reporting of spill start date and start time in which the release of sewage from the sanitary sewer system initiated;
• The Enrollee’s reporting of spill end date, and end time to be the date and time in which the release of sewage from the sanitary sewer system was stopped; • The Enrollee’s diligence to accurately estimate and report spill volumes; • The Enrollee’s subsequent verification and/or updates to initial Draft Spill Reports in accordance with this General Order; and
• The Enrollee’s timely certification of required spill reports.

Consistent with Water Code section 13267 and section 13383, the State Water Board or a Regional Water Board may require an Enrollee to report the results of a condition assessment of a specified portion of the Enrollee’s sanitary sewer system.

6.2. Other Regional Water Board Orders
It is the intent of the State Water Board that sanitary sewer systems be regulated in a manner consistent with federal and state regulations. This Order will not be interpreted or applied:
• In a manner inconsistent with the federal Clean Water Act; • To authorize a spill or discharge that is illegal under either the Clean Water Act, the Water Code, and/or an applicable Basin Plan prohibition or water quality standard; • To prohibit a Regional Water Board from issuing an individual National Pollutant Discharge Elimination System (NPDES) permit or individual waste discharge requirements superseding an Enrollee’s regulatory coverage under this General Order for a sanitary sewer system authorized under the Clean Water Act or Water Code;

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER

ORDER 2022-0103-DWQ December 6, 2022
31 • To supersede any more specific or more stringent waste discharge requirements or enforcement orders issued by a Regional Water Board; or • To supersede any more specific or more stringent state or federal requirements in existing regulation, an administrative/judicial order, or Consent Decree.

6.3. Sewer System Management Plan Availability
The Enrollee’s updated Sewer System Management Plan must be maintained for public inspection at the Enrollee’s offices and facilities and must be available to the public through CIWQS and/or on the Enrollee’s website, in accordance with section 3.8 (Sewer System Management Plan Reporting Requirements) of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.

6.4. Entry and Inspection

6.4.1. Entry and Availability of Information
The Enrollee shall allow State and Regional Water Board staff, upon presentation of credentials and other documents as may be required by law, to:
• Enter upon the Enrollee’s premises where a regulated facility or activity is located or conducted, or where records are kept under the requirements of this General Order; • Have access to and reproduce any records required to be maintained by this General Order;
• Inspect any facility and/or equipment (including monitoring and control equipment), practices, or operations required in this General Order; and • Sample or monitor substances or parameters for assuring compliance with this General Order, or as otherwise authorized by the Water Code.

6.4.2. Pre-Inspection Questionnaire
The Enrollee shall provide pre-inspection information to State and Regional Water Board staff through the completion of a Pre-Inspection Questionnaire provided by Water Board staff.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT A – DEFINITIONS December 6, 2022 A - 1

ATTACHMENT A - DEFINITIONS
Annual Report
An Annual Report (previously termed as Collection System Questionnaire in Order 2006-0003-DWQ) is a mandatory report in which the Enrollee provides a calendar-year update of its efforts to prevent spills.

Basin Plan
A Basin Plan is a water quality control plan specific to a Regional Water Quality Control Board (Regional Water Board), that serves as regulations to: (1) define and designate beneficial uses of surface and groundwaters, (2) establish water quality objectives for protection of beneficial uses, and (3) provide implementation measures.

Beneficial Uses
The term “Beneficial Uses” is a Water Code term, defined as the uses of the waters of the State that may be protected against water quality degradation. Examples of beneficial uses include but are not limited to, municipal, domestic, agricultural and industrial supply; power generation; recreation; aesthetic enjoyment; navigation; and preservation and enhancement of fish, wildlife, and other aquatic resources or preserves.

California Integrated Water Quality System (CIWQS)
CIWQS is the statewide database that provides for mandatory electronic reporting as required in State and Regional Water Board-issued waste discharge requirements.

Data Submitter
A Data Submitter is an individual designated and authorized by the Enrollee’s Legally Responsible Official to enter spill data into the online CIWQS Sanitary Sewer System Database. A Data Submitter does not have the authority of a Legally Responsible Official to certify reporting entered into the online CIWQS Sanitary Sewer System Database.

Disadvantaged Community
A disadvantaged community is a community with a median household income of less than eighty percent (80%) of the statewide annual median household income.

For the purpose of this General Order, there is no differentiation between a small and large disadvantaged community.

Drainage Conveyance System
A drainage conveyance system is a publicly- or privately-owned separate storm sewer system, including but not limited to drainage canals, channels, pipelines, pump stations, detention basins, infiltration basins/facilities, or other facilities constructed to transport stormwater and non-stormwater flows.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT A – DEFINITIONS December 6, 2022 A - 2
Enrollee
An Enrollee is a public, private, or other non-governmental entity that has obtained approval for regulatory coverage under this General Order, including:
• A state agency, municipality, special district, or other public entity that owns and/or operates one or more sanitary sewer systems:
• greater than one (1) mile in length (each individual sanitary sewer system); • one mile or less in length where the State Water Resources Control Board or a Regional Water Quality Control Board requires regulatory coverage under this Order, or • A federal agency, private company, or other non-governmental entity that owns and/or operates a sanitary sewer system of any size where the State Water Resources Control Board or a Regional Water Quality Control Board requires regulatory coverage under this Order in response to a history of spills, proximity to surface water, or other factors supporting regulatory coverage.

Environmentally Sensitive Area
An environmentally sensitive area is a designated agricultural and/or wildlife area identified to need special natural landscape protection due to its wildlife or historical value.

Exfiltration
Exfiltration is the underground exiting of sewage from a sanitary sewer system through cracks, offset or separated joints, or failed infrastructure due to corrosion or other factors.

Flood Control Channel
A flood control channel is a channel used to convey stormwater and non-stormwater flows through and from areas for flood management purposes.

Governing Entity
A governing entity includes but is not limited to the following:
• A publicly elected governing board, council, or commission of a municipal agency; • A Department or Division director of a federal or state agency that is not governed by a board;
• A governing board or commission of an organization or association; and • A private system owner/manager that is not governed by a board.

Hydrologically Connected
Two waterbodies are hydrologically connected when one waterbody flows, or has the potential to flow, into the other waterbody. For the purpose of this General Order, groundwater is hydrologically connected to a surface water when the
groundwater feeds into the surface water. (The surface
waterbody in this example is termed a gaining stream as it gains flow from surrounding groundwater.)

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT A – DEFINITIONS December 6, 2022 A - 3
Lateral (including Lower and Upper Lateral)
A lateral is an underground segment of smaller diameter pipe that transports sewage from a customer’s building or property (residential, commercial, or industrial) to the Enrollee’s main sewer line in a street or easement. Upper and lower lateral boundary definitions are subject to local jurisdictional codes and ordinances, or private system ownership.

A lower lateral is the portion of the lateral located between the sanitary sewer system main, and either the property line, sewer clean out, curb line, established utility easement boundary, or other jurisdictional locations.

An upper lateral is the portion of the lateral from the property line, sewer clean out, curb line, established utility easement boundary, or other jurisdictional locations, to the building or property.

Legally Responsible Official
A Legally Responsible Official is an official representative, designated by the Enrollee, with authority to sign and certify submitted information and documents required by this General Order.

Nuisance
For the purpose of this General Order, a nuisance, as defined in Water Code section 13050(m), is anything that meets all of the following requirements:
• Is injurious to health, or is indecent or offensive to the senses, or an obstruction to the free use of property, so as to interfere with the comfortable enjoyment of life or property; • Affects at the same time an entire community or neighborhood, or any considerable number of persons, although the extent of the annoyance or damage inflicted upon individuals may be unequal; and
• Occurs during, or as a result of, the treatment or disposal of wastes.

Private Sewer Lateral
A private sewer lateral is the privately-owned lateral that transports sewage from private property(ies) into a sanitary sewer system.

Private Sanitary Sewer System
A private sanitary sewer system is a sanitary sewer system of any size that is owned and/or operated by a private individual, company, corporation, or organization. A private sanitary sewer system may or may not connect into a publicly owned sanitary sewer system.

Potential to Discharge, Potential Discharge
Potential to Discharge, or Potential Discharge, means any exiting of sewage from a sanitary sewer system which can reasonably be expected to discharge into a water of the State based on the size of the sewage spill, proximity to a drainage conveyance system, and the nature of the surrounding environment.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT A – DEFINITIONS December 6, 2022 A - 4
Receiving Water
A receiving water is a water of the State that receives a discharge of waste.

Resilience
Resilience is the ability to recover from or adjust to adversity or change, and grow from disruptions. Resilience can be built through planning, preparing for, mitigating, and adapting to changing conditions.

Sanitary Sewer System
A sanitary sewer system is a system that is designed to convey sewage, including but not limited to, pipes, manholes, pump stations, siphons, wet wells, diversion structures and/or other pertinent infrastructure, upstream of a wastewater treatment plant headworks, including:
• Laterals owned and/or operated by the Enrollee;
• Satellite sewer systems; and/or
• Temporary conveyance and storage facilities, including but not limited to temporary piping, vaults, construction trenches, wet wells, impoundments, tanks and diversion structures.

For purpose of this Order, sanitary sewer systems include only systems owned and/or operated by the Enrollee.

Satellite Sewer System
A satellite sewer system is a portion of a sanitary sewer system owned or operated by a different owner than the owner of the downstream wastewater treatment facility ultimately treating the sewage.

Sewer System Management Plan
A sewer system management plan is a living document an Enrollee develops and implements to effectively manage its sanitary sewer system(s) in accordance with this General Order.

Sewage
Sewage, and its associated wastewater, is untreated or partially treated domestic, municipal, commercial and/or industrial waste (including sewage sludge), and any mixture of these wastes with inflow or infiltration of stormwater or groundwater, conveyed in a sanitary sewer system.

Spill
A spill is a discharge of sewage from any portion of a sanitary sewer system due to a sanitary sewer system overflow, operational failure, and/or infrastructure failure. Exfiltration of sewage is not considered to be a spill under this General Order if the exfiltrated sewage remains in the subsurface and does not reach a surface water of the State.

Training
Training is in-house or external education and guidance needed that provides the knowledge, skills, and abilities to comply with this General Order.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT A – DEFINITIONS December 6, 2022 A - 5
Wash Down Water
Wash down water is water used to clean a spill area.

Waste
Waste, as defined in Water Code section 13050(d), includes sewage and any and all other waste substances, liquid, solid, gaseous, or radioactive, associated with human habitation, or of human or animal origin, or from any producing, manufacturing, or processing operation, including waste placed within containers of whatever nature prior to, and for purposes of, disposal.

Waste Discharge Identification Number (WDID)
A waste discharge identification number (WDID) identifies each individual sanitary sewer system enrolled under this General Order. A WDID number is assigned to each enrolled system upon an Enrollee’s approved regulatory coverage.

Waters of the State
Waters of the State are surface waters or groundwater within boundaries of the state as defined in Water Code section 13050(e), in which the State and Regional Water Boards have authority to protect beneficial uses. Waters of the State include, but are not limited to, groundwater aquifers, surface waters, saline waters, natural washes and pools, wetlands, sloughs, and estuaries, regardless of flow or whether water exists during dry conditions.

Waters of the State include waters of the United States.

Waters of the United States
Waters of the United States are surface waters or waterbodies that are subject to federal jurisdiction in accordance with the Clean Water Act.

Water Quality Objective
A water quality objective is the limit or maximum amount of pollutant, waste constituent or characteristic, or parameter level established in statewide water quality control plans and Regional Water Boards’ Basin Plans, for the reasonable protection of beneficial uses of surface waters and groundwater and the prevention of nuisance.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT B – APPLICATION FOR ENROLLMENT December 6, 2022 B - 1
ATTACHMENT B – APPLICATION FOR ENROLLMENT

1. Enrollment Status: (Mark only one item)
☐ New Enrollee
☐ New Enrollee with previous regulatory coverage under Order 2006-0003-DWQ (that failed to certify continuation of coverage in CIWQS per Order 2022-XXXX-DWQ) Existing WDID Number: __________________________________________________

2. Applicant Information:

Legally Responsible Official Submitting Application
First and Last Name: ____________________________________________________ Title: _________________________________________________________________ Phone: _______________________________________________________________ Email: ________________________________________________________________ System Owner/Operator Name: ______________________________________________ Mailing Address: ________________________________________________________ City, State, Zip: _________________________________________________________ County: _______________________________________________________________ Sanitary Sewer System Name: ____________________________________________ Regional Water Quality Control Board(s): ____________________________________ Signature and Date: _____________________________________________________

3. Applicant Type (Check one):
☐ City ☐ County ☐ State ☐ Federal ☐ Special District
☐ Government Combination ☐ Private ☐ Other Non-governmental Entity

4. Wastewater Treatment Plant Receiving Sanitary Sewer System Waste:

Wastewater Treatment Plant Permittee:________________________________________ WDID No.: ______________________________________________________________ STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT B – APPLICATION FOR ENROLLMENT December 6, 2022 B - 2

5. Billing Information
Billing Address: ___________________________________________________________ City, State, Zip: ___________________________________________________________ Billing Contact Person and Title: ______________________________________________ Phone and Email Address: __________________________________________________

6. Application Fee:

The application fee, as required by Water Code section 13260, is based on the daily population served by the sanitary sewer system. See updated Fee Schedule. (https://www.waterboards.ca.gov/resources/fees/water_quality/) Check one of the following and enter fee amount:
☐ Population Served < 50,000 – Total Fee submitted: $ ___________ ☐ Population Served ≥ 50,000 – Total Fee submitted: $ ___________ Make the fee payment payable to the State Water Resources Control Board and mail the complete application package to:

State Water Resources Control Board, Accounting Office
P. O. Box 1888
Sacramento, CA 95812-1888
Attention: Statewide Sanitary Sewer System Program

7. Application Submittal Certification
I certify under penalty of perjury under the laws of the State of California that to the best of my knowledge and belief, the information in the submitted application package is true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment.

Print Name: ______________________________________________________________ Title: ___________________________________________________________________ Signature: __________________________________________ Date: ________________ STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT C – NOTICE OF TERMINATION December 6, 2022
C - 1

ATTACHMENT C - NOTICE OF TERMINATION

1. Enrollee Information
Enrollee Name: ___________________________________________________________ WDID No: ________________________________________________________________ Legally Responsible Official Requesting Termination of Coverage: ___________________ First and Last Name: ____________________________________________________ Title: _________________________________________________________________ Phone: _______________________________________________________________ Email: ________________________________________________________________ Mailing Address: __________________________________________________________ City, State, Zip: ___________________________________________________________ County: _________________________________________________________________ Sanitary Sewer System Name(s) or Unique Identifier(s): ___________________________ Regional Water Quality Control Board(s): _______________________________________ Signature and Date: ________________________________________________________

2. Basis of Termination
Explanation of termination, including subsequent regulatory coverage and subsequent owner/operator of enrolled sanitary sewer system, as applicable:
________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT C – NOTICE OF TERMINATION December 6, 2022
C - 2

3. Regulatory Coverage Termination Certification
I certify under penalty of perjury under the laws of the State of California that to the best of my knowledge: 1) the sanitary sewer system I officially represent is not required to be regulated under the Statewide Waste Discharge Requirements for Sanitary Sewer Systems Order 2022-XXXX-DWQ, and 2) the information submitted in this Notice of Termination is true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine or imprisonment. Additionally, I understand that the submittal of this Notice of Termination does not release sanitary sewer system agencies from liability for any violations of the Clean Water Act.

Print Name: ______________________________________________________________ Title: ___________________________________________________________________ Signature: __________________________________________ Date: ________________ For State Water Board Use Only
☐ Approved for Termination ☐ Denied and Returned to Enrollee Deputy Director of Water Quality Signature: _____________________________________ Date: ____________________ Notice of Termination Effective Date: __________________

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN
REQUIRED ELEMENTS December 6, 2022
D - 1
ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN – REQUIRED ELEMENTS Table of Contents

1. Sewer System Management Plan Goal And Introduction ............................................ D-2

1.1. Regulatory Context ........................................................................................... D-2

1.2. Sewer System Management Plan Update Schedule ......................................... D-3

1.3. Sewer System Asset Overview ......................................................................... D-3

2. Organization ................................................................................................................ D-3

3. Legal Authority ............................................................................................................. D-4

4. Operation And Maintenance Program .......................................................................... D-4

4.1. Updated Map of Sanitary Sewer System .......................................................... D-4

4.2. Preventive Operation and Maintenance Activities ............................................. D-4

4.3. Training ............................................................................................................. D-5

4.4. Equipment Inventory ......................................................................................... D-5

5. Design And Performance Provisions ........................................................................... D-5

5.1. Updated Design Criteria and Construction Standards and Specifications ......... D-5

5.2. Procedures and Standards ................................................................................ D-5

6. Spill Emergency Response Plan .................................................................................. D-6

7. Sewer Pipe Blockage Control Program ........................................................................ D-7

8. System Evaluation, Capacity Assurance and Capital Improvements ........................... D-7

8.1 System Evaluation and Condition Assessment ................................................. D-7

8.2. Capacity Assessment and Design Criteria ........................................................ D-8

8.3. Prioritization of Corrective Action ...................................................................... D-9

8.4. Capital Improvement Plan ................................................................................. D-9

9. Monitoring, Measurement and Program Modifications ................................................. D-9

10. Internal Audits ............................................................................................................ D-10

11. Communication Program ........................................................................................... D-10

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN
REQUIRED ELEMENTS December 6, 2022
D - 2
ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN – REQUIRED ELEMENTS A Sewer System Management Plan (Plan) is a living planning document that documents ongoing local sewer system management program activities, procedures, and decision-making – at the scale necessary to address the size and complexity of the subject sanitary sewer system(s). This Plan may incorporate other programs and other plans by reference, to address short-term and long-term system resilience through:
• Proactive planning and decision-making;
• Local government ordinances;
• Updated operations and maintenance activities and procedures; • Implementation of capital improvements;
• Sufficient local budget to support staff resources, contractors, equipment, and training; and • Updated training of staff and contractors.

The Enrollee’s development, update, and implementation of a Sewer System Management Plan addressing the requirements of this Attachment is an enforceable component of this General Order. As specified in Provision 6.1 (Enforcement Provisions) of this General Order, consistent with the Water Code and the State Water Board Enforcement Policy, the State Water Board or a Regional Water Board may consider the Enrollee’s efforts in implementing an effective Sewer System Management Plan to prevent, contain, control, and mitigate spills when considering Water Code section 13327 factors to determine necessary enforcement of this General Order.

This Attachment includes the following required elements that the Enrollee shall address in its Plan and subsequent updates. The Enrollee shall identify any requirement in this Attachment that is not applicable to the Enrollee’s sewer system and shall explain in its Plan why the requirement is not applicable.

1. SEWER SYSTEM MANAGEMENT PLAN GOAL AND INTRODUCTION
The goal of the Sewer System Management Plan (Plan) is to provide a plan and schedule to: (1) properly manage, operate, and maintain all parts of the Enrollee’s sanitary sewer system(s), (2) reduce and prevent spills, and (3) contain and mitigate spills that do occur.

The Plan must include a narrative Introduction section that discusses the following items:

1.1. Regulatory Context
The Plan Introduction section must provide a general description of the local sewer system management program and discuss Plan implementation and updates.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN
REQUIRED ELEMENTS December 6, 2022
D - 3

1.2. Sewer System Management Plan Update Schedule
The Plan Introduction section must include a schedule for the Enrollee to update the Plan, including the schedule for conducting internal audits. The schedule must include milestones for incorporation of activities addressing prevention of sewer spills.

1.3. Sewer System Asset Overview
The Plan Introduction section must provide a description of the Enrollee-owned assets and service area, including but not limited to:
• Location, including county(ies);
• Service area boundary;
• Population and community served;
• System size, including total length in miles, length of gravity mainlines, length of pressurized (force) mains, and number of pump stations and siphons; • Structures diverting stormwater to the sewer system;
• Data management systems;
• Sewer system ownership and operation responsibilities between Enrollee and private entities for upper and lower sewer laterals;
• Estimated number or percent of residential, commercial, and industrial service connections; and
• Unique service boundary conditions and challenge(s).

Additionally, the Plan Introduction section must provide reference to the Enrollee’s up- to-date map of its sanitary sewer system, as required in section 4.1 (Updated Map of Sanitary Sewer System) of this Attachment.

2. ORGANIZATION
The Plan must identify organizational staffing responsible and integral for implementing the local Sewer System Management Plan through an organization chart or similar narrative documentation that includes:
• The name of the Legally Responsible Official as required in section 5.1 (Designation of a Legally Responsible Official) of this General Order; • The position titles, telephone numbers, and email addresses for management, administrative, and maintenance positions responsible for implementing specific Sewer System Management Plan elements;
• Organizational lines of authority; and
• Chain of communication for reporting spills from receipt of complaint or other information, including the person responsible for reporting spills to the State and Regional Water Boards and other agencies, as applicable. (For example, county STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN
REQUIRED ELEMENTS December 6, 2022
D - 4
health officer, county environmental health agency, and State Office of Emergency Services.)

3. LEGAL AUTHORITY
The Plan must include copies or an electronic link to the Enrollee’s current sewer system use ordinances, service agreements and/or other legally binding procedures to demonstrate the Enrollee possesses the necessary legal authority to:
• Prevent illicit discharges into its sanitary sewer system from inflow and infiltration (I&I); unauthorized stormwater; chemical dumping; unauthorized debris; roots; fats, oils, and grease; and trash, including rags and other debris that may cause blockages;
• Collaborate with storm sewer agencies to coordinate emergency spill responses, ensure access to storm sewer systems during spill events, and prevent unintentional cross connections of sanitary sewer infrastructure to storm sewer infrastructure; • Require that sewer system components and connections be properly designed and constructed;
• Ensure access for maintenance, inspection, and/or repairs for portions of the service lateral owned and/or operated by the Enrollee;
• Enforce any violation of its sewer ordinances, service agreements, or other legally binding procedures; and
• Obtain easement accessibility agreements for locations requiring sewer system operations and maintenance, as applicable.

4. OPERATION AND MAINTENANCE PROGRAM
The Plan must include the items listed below that are appropriate and applicable to the Enrollee’s system.

4.1. Updated Map of Sanitary Sewer System
An up-to-date map(s) of the sanitary sewer system, and procedures for maintaining and providing State and Regional Water Board staff access to the map(s). The map(s) must show gravity line segments and manholes, pumping facilities, pressure pipes and valves, and applicable stormwater conveyance facilities within the sewer system service area boundaries.

4.2. Preventive Operation and Maintenance Activities
A scheduling system and a data collection system for preventive operation and maintenance activities conducted by staff and contractors.

The scheduling system must include:
• Inspection and maintenance activities;
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN
REQUIRED ELEMENTS December 6, 2022
D - 5
• Higher-frequency inspections and maintenance of known problem areas, including areas with tree root problems;
• Regular visual and closed-circuit television (CCTV) inspections of manholes and sewer pipes.

The data collection system must document data from system inspection and maintenance activities, including system areas/components prone to root-intrusion potentially resulting in system backup and/or failure.

4.3. Training
In-house and external training provided on a regular basis for sanitary sewer system operations and maintenance staff and contractors. The training must cover:
• The requirements of this General Order;
• The Enrollee’s Spill Emergency Response Plan procedures and practice drills; • Skilled estimation of spill volume for field operators; and • Electronic CIWQS reporting procedures for staff submitting data.

4.4. Equipment Inventory
An inventory of sewer system equipment, including the identification of critical replacement and spare parts.

5. DESIGN AND PERFORMANCE PROVISIONS
The Plan must include the following items as appropriate and applicable to the Enrollee’s system:

5.1. Updated Design Criteria and Construction Standards and Specifications Updated design criteria, and construction standards and specifications, for the construction, installation, repair, and rehabilitation of existing and proposed system infrastructure components, including but not limited to pipelines, pump stations, and other system appurtenances. If existing design criteria and construction standards are deficient to address the necessary component-specific hydraulic capacity as specified in section 8 (System Evaluation, Capacity Assurance and Capital Improvements) of this Attachment, the procedures must include component-specific evaluation of the design criteria.

5.2. Procedures and Standards
Procedures, and standards for the inspection and testing of newly constructed, newly installed, repaired, and rehabilitated system pipelines, pumps, and other equipment and appurtenances.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN
REQUIRED ELEMENTS December 6, 2022
D - 6

6. SPILL EMERGENCY RESPONSE PLAN
The Plan must include an up to date Spill Emergency Response Plan to ensure prompt detection and response to spills to reduce spill volumes and collect information for prevention of future spills. The Spill Emergency Response Plan must include procedures to:
• Notify primary responders, appropriate local officials, and appropriate regulatory agencies of a spill in a timely manner;
• Notify other potentially affected entities (for example, health agencies, water suppliers, etc.) of spills that potentially affect public health or reach waters of the State;
• Comply with the notification, monitoring and reporting requirements of this General Order, State law and regulations, and applicable Regional Water Board Orders; • Ensure that appropriate staff and contractors implement the Spill Emergency Response Plan and are appropriately trained;
• Address emergency system operations, traffic control and other necessary response activities;
• Contain a spill and prevent/minimize discharge to waters of the State or any drainage conveyance system;
• Minimize and remediate public health impacts and adverse impacts on beneficial uses of waters of the State;
• Remove sewage from the drainage conveyance system;
• Clean the spill area and drainage conveyance system in a manner that does not inadvertently impact beneficial uses in the receiving waters; • Implement technologies, practices, equipment, and interagency coordination to expedite spill containment and recovery;
• Implement pre-planned coordination and collaboration with storm drain agencies and other utility agencies/departments prior, during, and after a spill event; • Conduct post-spill assessments of spill response activities; • Document and report spill events as required in this General Order; and • Annually, review and assess effectiveness of the Spill Emergency Response Plan, and update the Plan as needed.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN
REQUIRED ELEMENTS December 6, 2022
D - 7

The procedures must include, at minimum:
• An implementation plan and schedule for a public education and outreach program that promotes proper disposal of pipe-blocking substances; • A plan and schedule for the disposal of pipe-blocking substances generated within the sanitary sewer system service area. This may include a list of acceptable disposal facilities and/or additional facilities needed to adequately dispose of substances generated within a sanitary sewer system service area; • The legal authority to prohibit discharges to the system and identify measures to prevent spills and blockages;
• Requirements to install grease removal devices (such as traps or interceptors), design standards for the removal devices, maintenance requirements, best management practices requirements, recordkeeping and reporting requirements; • Authority to inspect grease producing facilities, enforcement authorities, and whether the Enrollee has sufficient staff to inspect and enforce the fats, oils, and grease ordinance;
• An identification of sanitary sewer system sections subject to fats, oils, and grease blockages and establishment of a cleaning schedule for each section; and • Implementation of source control measures for all sources of fats, oils, and grease reaching the sanitary sewer system for each section identified above.

8. SYSTEM EVALUATION, CAPACITY ASSURANCE AND CAPITAL IMPROVEMENTS The Plan must include procedures and activities for:
• Routine evaluation and assessment of system conditions; • Capacity assessment and design criteria;
• Prioritization of corrective actions; and
• A capital improvement plan.

8.1 System Evaluation and Condition Assessment
The Plan must include procedures to:
• Evaluate the sanitary sewer system assets utilizing the best practices and technologies available;
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN
REQUIRED ELEMENTS December 6, 2022
D - 8
• Identify and justify the amount (percentage) of its system for its condition to be assessed each year;
• Prioritize the condition assessment of system areas that:
o Hold a high level of environmental consequences if vulnerable to collapse, failure, blockage, capacity issues, or other system deficiencies; o Are located in or within the vicinity of surface waters, steep terrain, high groundwater elevations, and environmentally sensitive areas; o Are within the vicinity of a receiving water with a bacterial-related impairment on the most current Clean Water Act section 303(d) List;
• Assess the system conditions using visual observations, video surveillance and/or other comparable system inspection methods;
• Utilize observations/evidence of system conditions that may contribute to exiting of sewage from the system which can reasonably be expected to discharge into a water of the State;
• Maintain documents and recordkeeping of system evaluation and condition assessment inspections and activities; and
• Identify system assets vulnerable to direct and indirect impacts of climate change, including but not limited to: sea level rise; flooding and/or erosion due to increased storm volumes, frequency, and/or intensity; wildfires; and increased power disruptions.

8.2. Capacity Assessment and Design Criteria
The Plan must include procedures to identify system components that are experiencing or contributing to spills caused by hydraulic deficiency and/or limited capacity, including procedures to identify the appropriate hydraulic capacity of key system elements for:
• Dry-weather peak flow conditions that cause or contributes to spill events; • The appropriate design storm(s) or wet weather events that causes or contributes to spill events;
• The capacity of key system components; and
• Identify the major sources that contribute to the peak flows associated with sewer spills.

The capacity assessment must consider:
• Data from existing system condition assessments, system inspections, system audits, spill history, and other available information; • Capacity of flood-prone systems subject to increased infiltration and inflow, under normal local and regional storm conditions;
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN
REQUIRED ELEMENTS December 6, 2022
D - 9
• Capacity of systems subject to increased infiltration and inflow due to larger and/or higher-intensity storm events as a result of climate change; • Increases of erosive forces in canyons and streams near underground and above- ground system components due to larger and/or higher-intensity storm events; • Capacity of major system elements to accommodate dry weather peak flow conditions, and updated design storm and wet weather events; and • Necessary redundancy in pumping and storage capacities.

8.3. Prioritization of Corrective Action
The findings of the condition assessments and capacity assessments must be used to prioritize corrective actions. Prioritization must consider the severity of the consequences of potential spills.

8.4. Capital Improvement Plan
The capital improvement plan must include the following items:
• Project schedules including completion dates for all portions of the capital improvement program;
• Internal and external project funding sources for each project; and • Joint coordination between operation and maintenance staff, and engineering staff/consultants during planning, design, and construction of capital improvement projects; and Interagency coordination with other impacted utility agencies.

9. MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS
The Plan must include an Adaptive Management section that addresses Plan- implementation effectiveness and the steps for necessary Plan improvement, including:
• Maintaining relevant information, including audit findings, to establish and prioritize appropriate Plan activities;
• Monitoring the implementation and measuring the effectiveness of each Plan Element;
• Assessing the success of the preventive operation and maintenance activities; • Updating Plan procedures and activities, as appropriate, based on results of monitoring and performance evaluations; and
• Identifying and illustrating spill trends, including spill frequency, locations and estimated volumes.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ

ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN
REQUIRED ELEMENTS December 6, 2022
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10. INTERNAL AUDITS
The Plan shall include internal audit procedures, appropriate to the size and performance of the system, for the Enrollee to comply with section 5.4 (Sewer System Management Plan Audits) of this General Order.

11. COMMUNICATION PROGRAM
The Plan must include procedures for the Enrollee to communicate with:
• The public for:
o Spills and discharges resulting in closures of public areas, or that enter a source of drinking water, and
o The development, implementation, and update of its Plan, including opportunities for public input to Plan implementation and updates.
• Owners/operators of systems that connect into the Enrollee’s system, including satellite systems, for:
o System operation, maintenance, and capital improvement-related activities.

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ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING AND

RECORDKEEPING REQUIREMENTS
Table of Contents

1. Notification Requirements ......................................................................................... E1-3

1.1. Notification of Spills of 1,000 Gallons or Greater to the California Office of Emergency Services ...................................................................................... E1-3

1.2. Spill Notification Information ........................................................................... E1-4

1.3. Notification of Spill Report Updates ................................................................ E1-4

2. Spill-Specific Monitoring Requirements .................................................................... E1-5

2.1 Spill Location and Spread .............................................................................. E1-5

2.2 Spill Volume Estimation.................................................................................. E1-5

2.3. Receiving Water Monitoring ............................................................................ E1-5

2.4. Safety and Access Exceptions ........................................................................ E1-8

3. Reporting Requirements ............................................................................................ E1-8

3.1. Reporting Requirements for Individual Category 1 Spill Reporting ................. E1-8

3.2. Reporting Requirements for Individual Category 2 Spill Reporting ............... E1-12

3.3. Monthly Certified Spill Reporting for Category 3 Spills .................................. E1-14

3.4. Monthly Certified Spill Reporting for Category 4 Spills .................................. E1-16

3.5. Amended Certified Spill Reports for Category 3 Spills .................................. E1-16

3.6. Annual Certified Spill Reporting of Category 4 and/or Lateral Spills ............. E1-16

3.7. Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” ................................................................................................ E1-16

3.8. Electronic Sanitary Sewer System Service Area Boundary Map ................... E1-17

3.9. Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ) .................................................................. E1-17

3.10. Sewer System Management Plan Audit Reporting Requirements ................ E1-19

3.11. Sewer System Management Plan Reporting Requirements ......................... E1-19

4. Recordkeeping Requirements ................................................................................. E1-20

4.1. Recordkeeping Time Period .......................................................................... E1-20

4.2. Availability of Documents .............................................................................. E1-20

4.3. Spill Reports .................................................................................................. E1-20

4.4. Recordkeeping of Category 4 Spills and Non-Category 1 Lateral Spills ....... E1-21

4.5. Sewer System Telemetry Records ................................................................ E1-22

4.6. Sewer System Management Plan Implementation Records ......................... E1-22

4.7. Audit Records ................................................................................................ E1-23 STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
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4.8. Equipment Records ....................................................................................... E1-23

4.9. Work Orders .................................................................................................. E1-23

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ATTACHMENT E1– NOTIFICATION, MONITORING, REPORTING AND RECORDKEEPING

REQUIREMENTS
The Notification Requirements (section 1), Spill-specific Monitoring Requirements (section 2), Reporting Requirements (section 3) and Recordkeeping Requirements (section 4) in this Attachment are pursuant to Water Code section 13267 and section 13383, and are an enforceable component of this General Order. For the purpose of this General Order, the term:
• Notification means the notifying of appropriate parties of a spill event or other activity. • Spill-specific Monitoring means the gathering of information and data for a specific spill event to be reported or kept as records.
• Reporting means the reporting of information and data into the online California Integrated Water Quality System (CIWQS) Sanitary Sewer System Database. • Recordkeeping means the maintaining of information and data in an official records storage system.

Failure to comply with the notification, monitoring, reporting and recordkeeping requirements in this General Order may subject the Enrollee to civil liabilities of up to $10,000 a day per violation pursuant to Water Code section 13385; up to $1,000 a day per violation pursuant to Water Code section 13268; or referral to the Attorney General for judicial civil enforcement.

Water Code section 13193 et seq. requires the Regional Water Quality Control Boards (Regional Water Boards) and the State Water Resources Control Board ( State Water Board ) to collect sanitary sewer spill information for each spill event and make this information available to the public. Sanitary sewer spill information for each spill event includes but is not limited to: Enrollee contact information for each spill event, spill cause, estimated spill volume and factors used for estimation, location, date, time, duration, amount discharged to waters of the State, response and corrective action(s) taken.

1. NOTIFICATION REQUIREMENTS

1.1. Notification of Spills of 1,000 Gallons or Greater to the California Office of Emergency Services
Per Water Code section 13271, for a spill that discharges in or on any waters of the State, or discharges or is deposited where it is, or probably will be, discharged in or on any waters of the State, the Enrollee shall notify the California Office of Emergency Services and obtain a California Office of Emergency Services Control Number as soon as possible but no later than two (2) hours after:
• The Enrollee has knowledge of the spill; and
• Notification can be provided without substantially impeding cleanup or other emergency measures.

The notification requirements in this section apply to individual spills of 1,000 gallons or greater, from an Enrollee-owned and/or operated laterals, to a water of the State.

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1.2. Spill Notification Information
The Enrollee shall provide the following spill information to the California Office of Emergency Services before receiving a Control Number, as applicable:
• Name and phone number of the person notifying the California Office of Emergency Services;
• Estimated spill volume (gallons);
• Estimated spill rate from the system (gallons per minute); • Estimated discharge rate (gallons per minute) directly into waters of the State or indirectly into a drainage conveyance system;
• Spill incident description:
o Brief narrative of the spill event, and
o Spill incident location (address, city, and zip code) and closest cross streets and/or landmarks;
• Name and phone number of contact person on-scene;
• Date and time the Enrollee was informed of the spill event; • Name of sanitary sewer system causing the spill;
• Spill cause or suspected cause (if known);
• Amount of spill contained;
• Name of receiving water body receiving or potentially receiving discharge; and • Description of water body impact and/ or potential impact to beneficial uses.

1.3. Notification of Spill Report Updates
Following the initial notification to the California Office of Emergency Services and until such time that the Enrollee certifies the spill report in the online CIWQS Sanitary Sewer System Database, the Enrollee shall provide updates to the California Office of Emergency Services regarding substantial changes to:
• Estimated spill volume (increase or decrease in gallons initially estimated); • Estimated discharge volume discharged directly into waters of the State or indirectly into a drainage conveyance system (increase or decrease in gallons initially estimated); and
• Additional impact(s) to the receiving water(s) and beneficial uses.

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2. SPILL-SPECIFIC MONITORING REQUIREMENTS

2.1 Spill Location and Spread
The Enrollee shall visually assess the spill location(s) and spread using photography, global positioning system (GPS), and other best available tools. The Enrollee shall document the critical spill locations, including:
• Photography and GPS coordinates for:
o The system location where spill originated.

For multiple appearance points of a single spill event, the points closest to the spill origin.
• Photography for:
o Drainage conveyance system entry locations,
o The location(s) of discharge into surface waters, as applicable, o Extent of spill spread, and
o The location(s) of clean up.

2.2 Spill Volume Estimation
To assess the approximate spill magnitude and spread, the Enrollee shall estimate the total spill volume using updated volume estimation techniques, calculations, and documentation for electronic reporting. The Enrollee shall update its notification and reporting of estimated spill volume (which includes spill volume recovered) as further information is gathered during and after a spill event.

2.3. Receiving Water Monitoring

2.3.1. Receiving Water Visual Observations
Through visual observations and use of best available spill volume-estimating techniques and field calculation techniques, the Enrollee shall gather and document the following information for spills discharging to surface waters:
• Estimated spill travel time to the receiving water;
• For spills entering a drainage conveyance system, estimated spill travel time from the point of entry into the drainage conveyance system to the point of discharge into the receiving water;
• Estimated spill volume entering the receiving water; and • Photography of:
o Waterbody bank erosion,
o Floating matter,
o Water surface sheen (potentially from oil and grease), STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
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o Discoloration of receiving water, and
o Impact to the receiving water.

2.3.2. Receiving Water – Water Quality Sampling and Analysis For sewage spills in which an estimated 50,000 gallons or greater are discharged into a surface water, the Enrollee shall conduct the following water quality sampling no later than 18 hours after the Enrollee’s knowledge of a potential discharge to a surface water:
• Collect one water sample, each day of the duration of the spill, at:
o The DCS-001 location as described in section 2.3.4 (Receiving Water Sampling Locations) of this Attachment, if sewage discharges to a surface water via a drainage conveyance system; and/or
o Each of the three receiving water sampling locations in section 2.3.4 (Receiving Water Sampling Locations) of this Attachment;
If the receiving water has no flow during the duration of the spill, the Enrollee must report “No Sampling Due To No Flow” for its receiving water sampling locations.

The Enrollee shall analyze the collected receiving water samples for the following constituents per section 2.3.3 (Water Quality Analysis Specifications) of this Attachment:
• Ammonia, and
• Appropriate bacterial indicator(s) per the applicable Basin Plan water quality objectives, including one or more of the following, unless directed otherwise by the Regional Water Board:
o Total Coliform Bacteria
o Fecal Coliform Bacteria
o E-coli
o Enterococcus
Dependent on the receiving water(s), sampling of bacterial indicators shall be sufficient to determine post-spill (after the spill) compliance with the water quality objectives and bacterial standards of the California Ocean Plan or the California Inland Surface Water Enclosed Bays, and Estuaries Plan, including the frequency and/or number of post-spill receiving water samples as may be specified in the applicable plans.

The Enrollee shall collect and analyze additional samples as required by the applicable Regional Water Board Executive Officer or designee.

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2.3.3. Water Quality Analysis Specifications
Spill monitoring must be representative of the monitored activity (40 Code of Federal Regulations section 122.41(j)(1)).

Sufficiently Sensitive Methods
Sample analysis must be conducted according to sufficiently sensitive test methods approved under 40 Code of Federal Regulations Part 136 for the sample analysis of pollutants. For the purposes of this General Order, a method is sufficiently sensitive when the minimum level of the analytical method approved under 40 Code of Federal Regulations Part 136 is at or below the receiving water pollutant criteria.

Environmental Laboratory Accreditation Program-Accredited Laboratories The analysis of water quality samples required per this General Order must be performed by a laboratory that has accreditation pursuant to Article 3 (commencing with section 100825) of Chapter 4 of Part 1 of Division 101 of the Health and Safety Code. (Water Code section 13176(a).) The State Water Board accredits laboratories through its Environmental Laboratory Accreditation Program (ELAP).

2.3.4. Receiving Water Sampling Locations
The Enrollee shall collect receiving water samples at the following locations.

Sampling of Flow in Drainage Conveyance System (DCS) Prior to Discharge Sampling
Location Sampling Location Description
DCS-001 A point in a drainage conveyance system before the drainage conveyance system flow discharges into a receiving water.

Receiving Surface Water Sampling (RSW)1

Sampling
Location Sampling Location Description
RSW-001
Point of Discharge
A point in the receiving water where sewage initially enters the receiving water.

RSW-001U:

Upstream of Point
of Discharge
A point in the receiving water, upstream of the point of sewage discharge, to capture ambient conditions absent of sewage discharge impacts.

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Sampling
Location Sampling Location Description
RSW-001D:

Downstream of
Point of Discharge
A point in the receiving water, downstream of the point of sewage discharge, where the spill material is fully mixed with the receiving water.
1 The Enrollee must use its best professional judgment to determine the upstream and downstream distances based on receiving water flow, accessibility to upstream/downstream waterbody banks, and size of visible sewage plume.

2.4. Safety and Access Exceptions
If the Enrollee encounters access restrictions or unsafe conditions that prevents its compliance with spill response requirements or monitoring requirements in this General Order, the Enrollee shall provide documentation of access restrictions and/or safety hazards in the corresponding required report.

3. REPORTING REQUIREMENTS
All reporting required in this General Order must be submitted electronically to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov), unless specified otherwise in this General Order. Electronic reporting may solely be conducted by a Legally Responsible Official or Data Submitter(s) previously designated by the Legally Responsible Official, as required in section 5.8 (Designation of Data Submitters) of this General Order.

The Enrollee shall report any information that is protected by the Homeland Security Act, by email to [email protected], with a brief explanation of the protection provided by the Homeland Security Act for the subject report to be protected from unauthorized disclosure and/or public access, and for official Water Board regulatory purposes only.

3.1. Reporting Requirements for Individual Category 1 Spill Reporting

3.1.1. Draft Spill Report for Category 1 Spills
Within three (3) business days of the Enrollee’s knowledge of a Category 1 spill, the Enrollee shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.

The Draft Spill Report must, at minimum, include the following items:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Date and time the Enrollee was notified of, or self-discovered, the spill;

4. Operator arrival time;
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5. Estimated spill start date and time;

6. Date and time the Enrollee notified the California Office of Emergency Services, and the assigned control number;

7. Description, photographs, and GPS coordinates of the system location where the spill originated;
o If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;

8. Estimated total spill volume exiting the system;

9. Description and photographs of the extent of the spill and spill boundaries;

11. Description and photographs of all discharge point(s) into the surface water;

12. Estimated spill volume that discharged to surface waters; and

13. Estimated total spill volume recovered.

3.1.2. Certified Spill Report for Category 1 Spills
Within 15 calendar days of the spill end date, the Enrollee shall submit a Certified Spill Report for Category 1 spills, to the online CIWQS Sanitary Sewer System Database.

Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.

The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.1.1 (Draft Spill Report for Category 1 Spills) above:

1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;

2. Spill end date and time;

3. Description of how the spill volume estimations were calculated, including at a minimum:
o The methodology, assumptions and type of data relied upon, such as supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and o The methodology(ies), assumptions and type of data relied upon for estimations of the spill start time and the spill end time;
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4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

5. System failure location (for example, main, lateral, pump station, etc.);

6. Description of the pipe material, and estimated age of the pipe material, at the failure location;

7. Description of the impact of the spill;

8. Whether or not the spill was associated with a storm event;

9. Description of spill response activities including description of immediate spill containment and cleanup efforts;

10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;

11. Spill response completion date;

12. Detailed narrative of investigation and investigation findings of cause of spill;

13. Reasons for an ongoing investigation (as applicable) and the expected date of completion;

14. Name and type of receiving water body(s);

15. Description of the water body(s), including but not limited to:
o Observed impacts on aquatic life,
o Public closure, restricted public access, temporary restricted use, and/or posted health warnings due to spill,
o Responsible entity for closing/restricting use of water body, and o Number of days closed/restricted as a result of the spill.

16. Whether or not the spill was located within 1,000 feet of a municipal surface water intake; and

17. If water quality samples were collected, identify sample locations and the parameters the water quality samples were analyzed for. If no samples were taken, Not Applicable shall be selected.

3.1.3. Spill Technical Report for Individual Category 1 Spill in which 50,000 Gallons or Greater Discharged into a Surface Water
For any spill in which 50,000 gallons or greater discharged into a surface water, within 45 calendar days of the spill end date, the Enrollee shall submit a Spill Technical Report to the online CIWQS Sanitary Sewer System Database. The Spill Technical Report, at minimum, must include the following information:

1. Spill causes and circumstances, including at minimum:
o Complete and detailed explanation of how and when the spill was discovered; STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
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o Photographs illustrating the spill origin, the extent and reach of the spill, drainage conveyance system entrance and exit, receiving water, and post-cleanup site conditions;
o Diagram showing the spill failure point, appearance point(s), the spill flow path, and ultimate destinations;
o Detailed description of the methodology employed, and available data used to calculate the discharge volume and, if applicable, the recovered spill volume; o Detailed description of the spill cause(s);
o Description of the pipe material, and estimated age of the pipe material, at the failure location;
o Description of the impact of the spill;
o Copy of original field crew records used to document the spill; and o Historical maintenance records for the failure location.

2. Enrollee’s response to the spill:
o Chronological narrative description of all actions taken by the Enrollee to terminate the spill;
o Explanation of how the Sewer System Management Plan Spill Emergency Response Plan was implemented to respond to and mitigate the spill; and o Final corrective action(s) completed and a schedule for planned corrective actions, including:
▪ Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable,
▪ Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences, and ▪ Necessary modifications to the Emergency Spill Response Plan to incorporate lessons learned in responding to and mitigating the spill.

3. Water Quality Monitoring, including at minimum:
o Description of all water quality sampling activities conducted; o List of pollutant and parameters monitored, sampled and analyzed; as required in section 2.3 (Receiving Water Monitoring) of this Attachment; o Laboratory results, including laboratory reports;
o Detailed location map illustrating all water quality sampling points; and o Other regulatory agencies receiving sample results (if applicable).

4. Evaluation of spill impact(s), including a description of short-term and long-term impact(s) to beneficial uses of the surface water.

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3.1.4. Amended Certified Spill Reports for Individual Category 1 Spills The Enrollee shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database.

The Enrollee shall certify the amended report.

After 90 calendar days, the Enrollee shall contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the Amended Spill Report due date.

3.2. Reporting Requirements for Individual Category 2 Spill Reporting

3.2.1. Draft Spill Report for Category 2 Spills
Within three (3) business days of the Enrollee’s knowledge of a Category 2 spill, the Enrollee shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.

The Draft Spill Report must, at minimum, include the following items:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Date and time the Enrollee was notified of, or self-discovered, the spill;

4. Operator arrival time;

5. Estimated spill start date and time;

6. Date and time the Enrollee notified the California Office of Emergency Services, and the assigned control number;

7. Description, photographs, and GPS coordinates of the system location where the spill originated;
If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;

8. Estimated total spill volume exiting the system;

9. Description and photographs of the extent of the spill and spill boundaries;

10. Did the spill reach a drainage conveyance system? If Yes:
o Description of the drainage conveyance system transporting the spill; o Photographs of the drainage conveyance system entry location(s); o Estimated spill volume fully recovered from the drainage conveyance system; o Estimated spill volume remaining within the drainage conveyance system; STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
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o Estimated spill volume discharged to a groundwater infiltration basin or facility, if applicable; and

11. Estimated total spill volume recovered.

3.2.2. Certified Spill Report for Category 2 Spills
Within 15 calendar days of the spill end date, the Enrollee shall submit a Certified Spill Report for the Category 2 spill, to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov). Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.

The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.2.1 (Draft Spill Report for Category 2 Spills) above:

1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;

2. Spill end date and time;

4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

5. System failure location (for example, main, pump station, etc.);

6. Description of the pipe/infrastructure material, and estimated age of the pipe material, at the failure location;

7. Description of the impact of the spill;

8. Whether or not the spill was associated with a storm event;

9. Description of spill response activities including description of immediate spill containment and cleanup efforts;

10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;

11. Spill response completion date;

12. Detailed narrative of investigation and investigation findings of cause of spill;

13. Reasons for an ongoing investigation (as applicable) and the expected date of completion; and
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14. Whether or not the spill was located within 1,000 feet of a municipal surface water intake.

3.2.3. Amended Certified Spill Reports for Individual Category 2 Spills The Enrollee shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database.

The Enrollee shall certify the amended report.

3.3. Monthly Certified Spill Reporting for Category 3 Spills The Enrollee shall report and certify all Category 3 spills to the online CIWQS Sanitary Sewer System Database within 30 calendar days after the end of the month in which the spills occurred. (For example, all Category 3 spills occurring in the month of February shall be reported and certified by March 30th). After the Legally Responsible Official certifies the spills, the online CIWQS Sanitary Sewer System Database will issue a spill event identification number for each spill.

The monthly reporting of all Category 3 spills must include the following items for each spill:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Date and time the Enrollee was notified of, or self-discovered, the spill;

4. Operator arrival time;

5. Estimated spill start date and time;

6. Description, photographs, and GPS coordinates where the spill originated:
o If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;

7. Estimated total spill volume exiting the system;

8. Description and photographs of the extent of the spill and spill boundaries;

9. Did the spill reach a drainage conveyance system? If Yes:
o Description of the drainage conveyance system transporting the spill; o Photographs of the drainage conveyance system entry locations(s); o Estimated spill volume fully recovered from the drainage conveyance system; and STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
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o Estimated spill volume discharged to a groundwater infiltration basis or facility, if applicable.

10. Estimated total spill volume recovered;

11. Description of the spill event destination(s), including GPS coordinates, if available, that represent the full spread and reaches of the spill;

12. Spill end date and time;

13. Description of how the spill volume estimations were calculated, including, at minimum:
o The methodology and type of data relied upon, including supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and o The methodology and type of data relied upon to estimate the spill start time, on-going spill rate at time of arrival (if applicable), and the spill end time;

14. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

15. System failure location (for example, main, pump station, etc.);

16. Description of the pipe/infrastructure material, and estimated age of the pipe/infrastructure material, at the failure location;

17. Description of the impact of the spill;

18. Whether or not the spill was associated with a storm event;

19. Description of spill response activities including description of immediate spill containment and cleanup efforts;

20. Description of spill corrective actions, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of the major milestones for those steps; including, at minimum:
o Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable, and
o Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences at the same spill event location, including:
▪ Adjusted schedule/method of preventive maintenance,
▪ Planned rehabilitation or replacement of sanitary sewer asset, ▪ Inspected, repaired asset(s), or replaced defective asset(s), ▪ Capital improvements,
▪ Documentation verifying immediately implemented system modifications and operating/maintenance modifications,
▪ Description of spill response activities,
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 16
▪ Spill response completion date, and
▪ Ongoing investigation efforts, and expected completion date of investigation to determine the full cause of spill;

21. Detailed narrative of investigation and investigation findings of cause of spill.

3.4. Monthly Certified Spill Reporting for Category 4 Spills The Enrollee shall report and certify the estimated total spill volume exiting the sanitary sewer system, and the total number of all Category 4 spills to the online CIWQS Sanitary Sewer System Database, within 30 calendar days after the end of the month in which the spills occurred.

3.5. Amended Certified Spill Reports for Category 3 Spills Within 90 calendar days of the certified Spill Report due date, the Enrollee may update or add additional information to a certified Spill Report by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database. The Enrollee shall certify the amended report.

After 90 calendar days, the Legally Responsible Official shall contact the State Water Board at [email protected] to request to amend a certified Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the 90-day timeframe for amending the certified Spill Report, as provided above.

3.6. Annual Certified Spill Reporting of Category 4 and/or Lateral Spills For all Category 4 spills and spills from its owned and/or operated laterals that are caused by a failure or blockage in the lateral and that do not discharge to a surface water, the Enrollee shall:
• Maintain records per section 4.4. of this Attachment; The Enrollee shall provide records upon request by State Water Board or Regional Water Board staff.
• Annually upload and certify a report, in an appropriate digital format, of all recordkeeping of spills to the online CIWQS Sanitary Sewer System Database, by February 1st after the end of the calendar year in which the spills occurred.

A spill from an Enrollee-owned and/or operated lateral that discharges to a surface water is a Category 1 spill; the Enrollee shall report all Category 1 spills per section 3.1 of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.

3.7. Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills”
If either (1) no spills occur during a calendar month or (2) only Category 4, and/or Enrollee-owned and/or operated lateral spills (that do not discharge to a surface water) occur during a calendar month, the Enrollee shall certify, within 30 calendar days after STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 17
the end of each calendar month, either a “No-Spill” certification statement, or a “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” certification statement, in the online CIWQS Sanitary Sewer System Database, certifying that there were either no spills, or Category 4 and/or Non-Category 1 Lateral Spills that will be reported annually (per section 3.6 of this Attachment) for the designated month.

If a spill starts in one calendar month and ends in a subsequent calendar month, and the Enrollee has no further spills of any category, in the subsequent calendar month, the Enrollee shall certify “no-spills” for the subsequent calendar month.

If the Enrollee has no spills from its systems during a calendar month, but the Enrollee voluntarily reported a spill from a private lateral or a private system, the Enrollee shall certify “no-spills” for that calendar month.

If the Enrollees has spills from its owned and/or operated laterals during a calendar month, the Enrollee shall not certify “no spills” for that calendar month.

3.8. Electronic Sanitary Sewer System Service Area Boundary Map The Legally Responsible Official shall submit, to the State Water Board, an up-to-date electronic spatial map of its sewer system service area boundaries. The map must be in accordance with section 5.14 (Electronic Sanitary Sewer System Service Area Boundary Map) of this General Order and the specification provided on the statewide Sanitary Sewer Systems program website. The map must include the location of wastewater treatment facility(ies) that treats the sewer system waste, if in the same sewer service boundary.

By the Effective Date of this General Order, specifications for the electronic sanitary sewer service area boundary map format will be provided on the statewide Sanitary Sewer Systems Order program website.

3.9. Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ)
A new Enrollee shall complete and submit its first certified Annual Report into the online CIWQS Sanitary Sewer System Database, within 30 days of obtaining a CIWQS account; Subsequent Annual Reports are due by April 1 of each year.

All enrollees shall update their previous year’s Annual Report, by April 1 of each year after the Effective Date of this General Order, for each calendar year (January 1 through December 31).

The Annual Report must be entered directly into the online CIWQS Sanitary Sewer System Database. The Enrollee’s Legally Responsible Official shall certify the Annual Report as instructed in CIWQS;
The Annual Report must address, and update as applicable, the following items:
• Population served;
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 18
• Updated sewer system service area boundary map, if service area boundary has changed from original map submitted per section 5.14 (Electronic Sanitary Sewer System Service Area Boundary Map) of this General Order; • Number of system operation and maintenance staff:
o Entry level (less than two years of experience),
o Journey level (greater than two years of experience), o Supervisory level, and
o Managerial level;
• Number of operation and maintenance staff certified as a certified collection system operator by the California Water Environmental Association (CWEA), with:
o Corresponding number of certified collection system operator grade levels (Grade I, II, III, IV, and V);
• System information:
o Miles of system gravity and force mains,
o Number of upper and lower service laterals connected to system, o Estimated number of upper and lower laterals owned and/or operated by the Enrollee,
o Portion of laterals that is Enrollee’s responsibility, o Average age the major components of system infrastructure, o Number and age of pump stations, and
o Estimated total miles of the system pipeline not accessible for maintenance; • Name and location of the treatment plant(s) receiving sanitary sewer system’s waste;
• Name of satellite sewer system tributaries;
• Number of system’s gravity sewer above or underground crossings of water bodies throughout system;
• Number of force main (pressurized pipe) above or underground crossings of water bodies throughout system;
• Number of siphons used to convey waste throughout the sewer system; • Miles of sewer system cleaned;
• Miles of sewer system video inspected, or comparable (i.e., video closed-circuit television or alternative inspection methods);
• System Performance Evaluation as specified in section 5.11 (System Performance Analysis) of this General Order;
• Major spill causes (for example, root intrusion, grease deposition); STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 19
• System infrastructure failure points (for example, main, pump station, lateral, etc.); • Ongoing spill investigations; and
• Actions taken to address system deficiencies.

3.10. Sewer System Management Plan Audit Reporting Requirements The Enrollee shall submit its Sewer System Management Plan Audit and other pertinent audit information, in accordance with section 5.4 (Sewer System Management Plan Audits) of this General Order, to the online CIWQS Sanitary Sewer System Database by six (6) months after the end of the 3-year audit period.

If a Sewer System Management Plan Audit is not conducted as required: the Enrollee shall:
• Update the online CIWQS Sanitary Sewer System Database and select the justification for not conducting the Audit; and
• Notify its corresponding Regional Water Board (see Attachment F (Regional Water Quality Control Board Contact Information)) of the justification for the lapsed requirements.

The Enrollee’s reporting of a justification for not conducting a timely Audit does not justify non-compliance with this General Order. The Enrollee shall:
• Submit the late Audit as required in this General Order; and • Comply with subsequent Audit requirements and due dates corresponding with the original audit cycle.

3.11. Sewer System Management Plan Reporting Requirements For an Existing Enrollee previously regulated by Order 2006-0003-DWQ: Within every six (6) years after the required due date of its last Plan Update, the Legally Responsible Official shall upload and certify a local governing entity-approved Sewer System Management Plan Update to the online CIWQS Sanitary Sewer System Database. If the electronic document format or size capacity prevents the electronic upload of the Plan, the Legally Responsible Official shall report an electronic link to its updated Sewer System Management Plan posted on its own website.

Order 2006-0003-DWQ required each enrollee to develop its initial Sewer System Management Plan per the following schedule, with required Plan updates at a frequency of 5-years thereafter:

Systems serving populations: Greater than 100,000: May 2, 2009 Between 100,000 and 10,000: August 2, 2009
Between 10,000 and 2,500: May 2, 2010
Less than 2,500: August 2, 2010
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 20
This Order carries forth the previously-required Plan Update schedule per Order 2006-0003-DWQ. Per the six-year Plan Update frequency required in this Order, the Enrollee shall upload and certify its first Plan Update, to the online CIWQS Sanitary Sewer System Database by the following due dates, with subsequent Plan Updates at the frequency of six years thereafter:

Systems serving populations: Greater than 100,000: May 2, 2025 Between 100,000 and 10,000: August 2, 2025
Between 10,000 and 2,500: May 2, 2026
Less than 2,500: August 2, 2026
For a New Enrollee: Within twelve (12) months of its Application for Enrollment Approval date, the Legally Responsible Official of a new Enrollee shall upload and certify a local governing entity-approved Sewer System Management Plan to the online CIWQS Sanitary Sewer System Database. If electronic document format or size capacity prevents the electronic upload of the Plan, the Legally Responsible Official shall report an electronic link to its Sewer System Management Plan posted on its own website. The due date for subsequent 6-year Plan updates, is six (6) years from the submittal due date of the new Enrollee’s first Sewer System Management Plan.

4. RECORDKEEPING REQUIREMENTS
The Enrollee shall maintain records to document compliance with the provisions of this General Order, and previous General Order 2006-0003-DWQ as applicable, for each sanitary sewer system owned, including any required records generated by an Enrollee’s contractor(s).

4.1. Recordkeeping Time Period
The Enrollee shall maintain records of documents required in this Attachment, including records collected for compliance with this General Order, and records collected in accordance with previous General Order 2006-0003-DWQ, for five (5) years.

4.2. Availability of Documents
The Enrollee shall make the records required in this General Order readily available, either electronic or hard copies, for review by Water Board staff during onsite inspections or through an information request.

4.3. Spill Reports
The Enrollee shall maintain records for each of the following spill-related events and activities:
• Spill event complaint, including but not limited to records documenting how the Enrollee responded to notifications of spills. Each complaint record must, at a minimum, include the following information:
o Date, time, and method of notification,
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 21
o Date and time the complainant first noticed the spill, if available, o Narrative description of the complaint, including any information the caller provided regarding whether the spill has reached surface waters or a drainage conveyance system, if available,
o Complainant’s contact information, if available, and
o Final resolution of the complaint;
• Records documenting the steps and/or remedial action(s) undertaken by the Enrollee, using all available information, to comply with this General Order, and previous General Order 2006-0003-DWQ as applicable;
• Records documenting how estimate(s) of volume(s) and, if applicable, volume(s) of spill recovered were calculated;
• All California Office of Emergency Services notification records, as applicable; and • Records, in accordance with the Monitoring Requirements in this Attachment.

4.4. Recordkeeping of Category 4 Spills and Non-Category 1 Lateral Spills An Enrollee must maintain the following records for each individual Category 4 spill and for each individual non-Category 1 Enrollee-owned and/or operated lateral spill, and report in accordance to section 3.6 (Annual Certified Spill Reporting of Category 4 and/or Lateral Spills) of this Attachment.

Recordkeeping of Individual Category 4 Spill Information:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Description and GPS coordinates for the system location where the spill originated;

4. Did the spill reach a drainage conveyance system? If Yes:
o Description of drainage conveyance system location,
o Estimated spill volume fully recovered within the drainage conveyance system, and
o Estimated spill volume remaining within the drainage conveyance system;

5. Estimated total spill volume exiting the sanitary sewer system;

6. Spill date and start time;

7. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

8. System failure location (for example, main, pump station, etc.);

9. Description of spill response activities including description of immediate spill containment and cleanup efforts;

10. Description of how the volume estimation was calculated, including, at minimum:

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 22
o The methodology and type of data relied upon, including supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and o The methodology and type of data relied upon to estimate the spill start time, on- going spill rate at time of arrival (if applicable), and the spill end time;

11. Description of implemented system modifications and operating/maintenance modifications.

Recordkeeping of Individual Lateral Spill Information:

1. Date and time the Enrollee was notified of, or self-discovered, the spill;

2. Location of individual spill;

3. Estimated individual spill volume;

4. Spill cause(s) (for example, root intrusion, grease deposition, etc.); and

5. Description of how the volume estimations were calculated.

Total Annual Spill Information:

1. Estimated total annual spill volume;

2. Description of spill corrective actions, including at minimum:
o Local regulatory enforcement action taken against the sewer lateral owner in response to a spill, as applicable, and
o System operation, maintenance and program modifications implemented to prevent repeated spill occurrences at the same spill location.

4.5. Sewer System Telemetry Records
The Enrollee shall maintain the following sewer system telemetry records if used to document compliance with this General Order, and previous General Order 2006-0003-DWQ as applicable, including spill volume estimates:
• Supervisory control and data acquisition (SCADA) system(s); • Alarm system(s);
• Flow monitoring device(s) or other instrument(s) used to estimate sewage flow rates, and/or volumes;
• Computerized maintenance management system records; and • Asset management-related records.

4.6. Sewer System Management Plan Implementation Records The Enrollee shall maintain records documenting the Enrollee’s implementation of its Sewer System Management Plan, including documents supporting its Sewer System Management Plan audits, corrections, modifications, and updates to the Sewer System Management Plan.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 23

4.7. Audit Records
The Enrollee shall maintain, at minimum, the following records pertaining to its Sewer System Management Plan audits, and other internal audits:
• Completed audit documents and findings;
• Name and contact information of staff and/or consultants that conducted or involved in the audit; and
• Follow-up actions based on audit findings.

4.8. Equipment Records
The Enrollee shall maintain a log of all owned and leased sewer system cleaning, operational, maintenance, construction, and rehabilitation equipment.

4.9. Work Orders
The Enrollee shall maintain record of work orders for operations and maintenance projects.

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E2 – SUMMARY TABLES FOR NOTIFICATION, December 6, 2022

MONITORING AND REPORTING REQUIREMENTS
E2 - 1
ATTACHMENT E2 – SUMMARY OF NOTIFICATION, MONITORING AND REPORTING

REQUIREMENTS
This Attachment provides a summary of notification, monitoring and reporting requirements, by spill category, and for Enrollee-owned and/or operated laterals as required in Attachment E1 of this General Order, for quick reference purposes only.

Table E2-1
Spill Category 1: Spills to Surface Waters
Spill
Requirement Due Method
Notification
Within two (2) hours of the Enrollee’s knowledge of
a Category 1 spill of 1,000 gallons or greater,
discharging or threatening to discharge to surface
waters:

Notify the California Office of Emergency Services
and obtain a notification control number.

California Office
of Emergency
Services at:
(800) 852-7550
(Section 1 of
Attachment E1)
Monitoring
• Conduct spill-specific monitoring;
• Conduct water quality sampling of the receiving
water within 18 hours of initial knowledge of spill of
50,000 gallons or greater to surface waters.
(Section 2 of
Attachment E1)
Reporting
• Submit Draft Spill Report within three (3)
business days of the Enrollee’s knowledge of the
spill;
• Submit Certified Spill Report within 15 calendar
days of the spill end date;
• Submit Technical Report within 45 calendar days
after the spill end date for a Category 1 spill in
which 50,000 gallons or greater discharged to
surface waters; and
• Submit Amended Spill Report within 90 calendar
days after the spill end date.
(Section 3.1 of
Attachment E1)

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E2 – SUMMARY TABLES FOR NOTIFICATION, December 6, 2022

MONITORING AND REPORTING REQUIREMENTS
E2 - 2
Table E2-2
Spill Category 2: Spills of 1,000 Gallons or Greater That Do Not Discharge to Surface Waters
Spill
Requirements Due Method
Notification
Within two (2) hours of the Enrollee’s knowledge of
a Category 2 spill of 1,000 gallons or greater,
discharging or threatening to discharge to waters of
the State:

Notify California Office of Emergency Services and
obtain a notification control number.

California Office of
Emergency
Services at: (800)
852-7550
(Section 1 of
Attachment E1)
Monitoring Conduct spill-specific monitoring. (Section 2 of Attachment E1)
Reporting
• Submit Draft Spill Report within three (3)
business days of the Enrollee’s knowledge of the
spill;
• Submit Certified Spill Report within 15 calendar
days of the spill end date; and
• Submit Amended Spill Report within 90 calendar
days after the spill end date.
(Section 3.2 of
Attachment E1)

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E2 – SUMMARY TABLES FOR NOTIFICATION, December 6, 2022

MONITORING AND REPORTING REQUIREMENTS
E2 - 3
Table E2-3
Spill Category 3: Spills of Equal or Greater than 50 Gallons and Less than 1,000 Gallons That Does Not Discharge to Surface Waters
Spill
Requirements Due Method
Notification Not Applicable Not Applicable
Monitoring Conduct spill-specific monitoring. (Section 2 of Attachment E1)
Reporting
• Submit monthly Certified Spill Report to the online
CIWQS Sanitary Sewer System Database within
30 calendars days after the end of the month in
which the spills occur; and
• Submit Amended Spill Reports within 90 calendar
days after the Certified Spill Report due date.
(Section 3.3 and 3.5 of
Attachment E1)
Table E2-4
Spill Category 4: Spills Less Than 50 Gallons That Do Not Discharge to Surface Waters Spill
Requirements Due Method
Notification Not Applicable Not Applicable
Monitoring Conduct spill-specific monitoring. (Section 2 of Attachment E1)
Reporting
• If, during any calendar month, Category 4 spills
occur, certify monthly, the estimated total spill
volume exiting the sanitary sewer system, and the
total number of all Category 4 spills into the online
CIWQS Sanitary Sewer System Database, within
30 days after the end of the calendar month in
which the spills occurred.
• Upload and certify a report, in an acceptable digital format, of all Category 4 spills to the online CIWQS
Sanitary Sewer System Database, by February 1st
after the end of the calendar year in which the
spills occur.
(Section 3.4, 3.6, 3.7
and 4.4 of Attachment
E1)

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E2 – SUMMARY TABLES FOR NOTIFICATION, December 6, 2022

MONITORING AND REPORTING REQUIREMENTS
E2 - 4
Table E2-5
Enrollee Owned and/or Operated Lateral Spills That Do Not Discharge to Surface Waters Spill
Requirements Due Method
Notification
Within two (2) hours of the Enrollee’s knowledge of a
spill of 1,000 gallons or greater, from an enrollee-
owned and/or operated lateral, discharging or
threatening to discharge to waters of the State:

Notify California Office of Emergency Services and
obtain a notification control number.

Not applicable to a spill of less than 1,000 gallons.

California Office of
Emergency Services
at: (800) 852-7550

(Section 1 of Attachment
E1)
Monitoring Conduct visual monitoring. (Section 2 of Attachment E1)
Reporting
• Upload and certify a report, in an acceptable digital format, of all lateral spills (that do not discharge to a surface water) to the online CIWQS Sanitary
Sewer System Database, by February 1st after the
end of the calendar year in which the spills occur.
• Report a lateral spill of any volume that discharges
to a surface water as a Category 1 spill.
(Sections 3.6, 3.7 and

4.4 of Attachment E1)

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT F – REGIONAL WATER QUALITY CONTROL December 6, 2022

BOARD CONTACT INFORMATION
F - 1

ATTACHMENT F – REGIONAL WATER QUALITY CONTROL BOARD CONTACT

INFORMATION
This Attachment provides a map, list of counties, and contact information to assist the Enrollee in identifying the corresponding Regional Water Quality Control Board office, for all Regional Water Board notification requirements in this General Order.

Region 1 -- North Coast Regional Water Quality Control Board:

Del Norte, Glenn, Humboldt, Lake, Marin, Mendocino, Modoc, Siskiyou, Sonoma, and Trinity counties.

[email protected] or (707) 576-2220
Region 2 -- San Francisco Bay Regional Water Quality Control Board:

Alameda, Contra Costa, San Francisco, Santa Clara (Northern most part of Morgan Hill), San Mateo, Marin, Sonoma, Napa, Solano counties.

[email protected] or (510) 622-2369
Region 3 -- Central Coast Regional Water Quality Control Board:

Santa Clara (most of Morgan Hill), San Mateo (Southern portion), Santa Cruz, San Benito, Monterey, Kern (small portions), San Luis Obispo, Santa Barbara, Ventura (Northern portion) counties.

[email protected] or (805) 549-3147
Region 4 -- Los Angeles Regional Water Quality Control Board:

Los Angeles, Ventura counties (small portions of Kern and Santa Barbara counties). [email protected] or (213) 576-6600

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT F – REGIONAL WATER QUALITY CONTROL December 6, 2022

BOARD CONTACT INFORMATION
F - 2

Region 5 -- Central Valley Regional Water Quality Control Board:

Rancho Cordova (Sacramento) Office: Colusa, Lake, Sutter, Yuba, Sierra, Nevada, Placer, Yolo, Napa, (North East), Solano (West), Sacramento, El Dorado, Amador, Calaveras, San Joaquin, Contra Costa (East), Stanislaus, Tuolumne counties.

[email protected] or (916) 464-3291 Fresno Office: Fresno, Kern, Kings, Madera, Mariposa, Merced, and Tulare counties, and small portions of San Benito and San Luis Obispo counties.

[email protected] or (559) 445-5116 Redding Office: Butte, Glen, Lassen, Modoc, Plumas, Shasta, Siskiyou, and Tehama counties.

[email protected] or (530) 224-4845 Region 6 -- Lahontan Regional Water Quality Control Board:

Lake Tahoe Office: Alpine, Modoc (East), Lassen (East side and Eagle Lake), Sierra, Nevada, Placer, El Dorado counties.

[email protected] or (530) 542-5400 Victorville Office: Mono, Inyo, Kern (East), San Bernardino, Los Angeles (North East corner) counties.

[email protected] or (760) 241-6583 Region 7 -- Colorado River Basin Regional Water Quality Control Board:

Imperial county and portions of San Bernardino, Riverside, San Diego counties.

[email protected] or (760) 346-7491
Region 8 -- Santa Ana Regional Water Quality Control Board:

Orange, Riverside, San Bernardino counties.

[email protected] or (951) 782-4130
Region 9 -- San Diego Regional Water Quality Control Board:

San Diego county and portions of Orange and Riverside counties.

[email protected] or (619) 516-1990

End of Order 2022-0103-DWQ

APPENDIX B

DOCUMENTS RELATED TO

OPERATIONS AND MAINTENANCE

1. Example of Sewer System Map

2. Example Sanitary Sewer Flushing Sheet

3. Example Wastewater Daily Report.

4. Example Sewage Pump Station Maintenance Checklist

5. Example Remote Monitoring SCADA Screens

6. SOP for Sewer Cleaning

7. Major Sewer System Equipment

HEARTWOOD LN

WILLOWGATE ST

PALMITA PL

CASTRO ST

VIEW ST

CALIFORNIA ST

OAK ST

S SHORELINE BLVD

FRANKLIN ST

HOPE ST

BLOSSOM LN

LORETO ST

VIEW ST

MINTON LN

FRONT LN

OAK ST

FRANKLIN ST

BRYANT ST

CASTRO ST

HOPE ST

VIEW ST

BUSH ST

CALIFORNIA ST

W DANA ST

VILLA ST

W EVELYN AVE

CENTRAL EXPY CORTO ST

HORIZON AVE

HOUGHTON ST

BRYANT ST

MTN VIEW AVE

WILD CHERRY LN

W EVELYN AVE

S SHORELINE BLVD

W DANA ST

OAK ST

W EVELYN AVE

SANTA CLARA AVE

SANTA ROSA AVE

VILLA ST

CENTRAL EXPY

FRANKLIN ST

MERCY ST

ANDSBURY AVE

W EVELYN AVE

S SHORELINE BLVD

VILLA ST CORTO ST

MOFFETT BLVD

BLOSSOM LN

SHUMWAY LN

MADERA WAY

PINE WAY

FRANCESCA CT

SHUMWAY LN

WILD CHERRY LN

BLOSSOM LN
Cal Train VTA Parking Lot
Police-Fire Administration
City Parking
Lot 7
Library
City Parking
Lot 6
Fire Station 1
City Parking Garage 1
Performing Arts Center
City Parking Sturcture 3
City Parking
Lot 8
Adobe
Building
Post Office
City Parking Lot 12
City Parking
Lot 5
City Parking Lot 2
Bryant Parking
Structure
City Parking
Lot 4
California Street
Parking Structure
Dana Park
City Parking
Lot 10 & 11
Mtn View Academy(Private) School
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1247-1
1236-11276-21236-1
1276-2
1236-11276-2
5499-6
1276-2
1576-3
5333-2
1236-1
1276-2
1236-1
1276-2
1236-1
1276-2
1236-1
1276-2
6859-4
1236-1
1276-2
1236-11236-1
1276-2
1276-2
1276-2
1276-2
1247-1
1236-1
1236-1
1236-11276-2
5491-6
1236-1
5491-6
6824-3
1236-1
5600
5137
6576
2654-1
1247-1
7201-5
7201-4
7201-3
1236-1
1236-1
1236-1
1236-1
1236-1
1236-1
1276-2
1276-2
1276-2
1276-2
1276-2
1276-2
1276-2
1276-2
1276-2
1236-1
2654-1
1236-1
1276-2
1276-2
1236-1
1236-1
1276-2
1576-4
6804-2
1276-4
1236-1
1276-2
1247-1
5218-3
1284-1
1284-1
1576-2
6180-7
1332-1
1576-3
5600-1
2775-4
1236-1
1236-1
1236-1
1236-1
1236-1
1236-1
1276-2
1276-2
1276-2
1276-2
1276-2
1524-1
2775-4
5499-15
14007-7
7563-11
5445-12
14009-3
5445-13
6859-39
5445-10
6859-40
5499-16
7201-6/7
6543 U-4
6543 U-5
6543 U-6
1236-2
1276-2
NOTE: MANHOLE ACCESS AT THIS ADDRESS
I6-224
I6-224
I6-224
8" HDPE 508'
6" VCP 90'
8" HDPE 81'
12" VCP 378'
6" VCP 305'
8" VCP 65'
8" VCP 245'
8" VCP 76'
8" VCP 78'
18" CIP 319'
8" VCP 82'
8" VCP 88'
6" PVC 89'
6" VCP 363'
8" VCP 346'
6" VCP 109'
8" VCP 96'
6" VCP 99'
8" PVC 100'
8" VCP 108'
8" VCP 111'
6" VCP 118'
6" VCP 122'
6" VCP 123'
12" VCP 127'
6" VCP 128'
6" VCP 129'
8" PVC 130'
12" VCP 130'
8" VCP 131'
8" PVC 132'
12" VCP 135'
6" VCP 323' 6" VCP 333'
6" VCP 146'
15" VCP 348'
6" VCP 160'
6" VCP 160'
8" VCP 165'
12" VCP 266'
6" VCP 170'
8" VCP 172'
6" VCP 362'
8" HDPE 179'
8" VCP 179'
8" VCP 181'
6" VCP 183'
8" PVC 190'
6" VCP 510'
12" VCP 199'
8" VCP 299'
6" VCP 210'
6" VCP 218'
8" VCP 234'
6" VCP 224'
6" VCP 225'
8" PVC 225'
6" VCP 401'
6" VCP 460'12" VCP 230'
8" VCP 222'
6" VCP 232'
8" VCP 244'
6" VCP 235'
8" VCP 242'
8" HDPE 244'
6" VCP 419'
8" VCP 254'
8" VCP 254'
8" VCP 255'
12" VCP 257'
6" VCP 258'
6" VCP 262'
6" VCP 262'
8" VCP 265'
8" VCP 272'
8" PVC 297'
6" VCP 275'
8" PVC 282'
12" VCP 283'
6" VCP 284'
8" VCP 299'
6" VCP 300'
6" VCP 302'
6" VCP 308'
6" VCP 308'
8" VCP 310'
8" VCP 311'
6" VCP 316'
6" VCP 323'
6" VCP 325'
8" HDPE 331'
8" VCP 332'
6" VCP 336'
6" VCP 333'
6" VCP 334'
6" VCP 335'
6" VCP 524'
8" VCP 349'
8" VCP 359'
6" VCP 360'
8" VCP 360'
6" VCP 360'
8" HDPE 360'
12" PVC 360'
12" PVC 360'
6" VCP 361'
6" VCP 362'
8" VCP 362'
8" HDPE 362'
12" PVC 363'
12" HDPE 384'
8" HDPE 384'
10" VCP 387'
8" HDPE 512'
6" VCP 423'
8" VCP 509'
8" HDPE 509'
8" VCP 509'
8" VCP 509'
8" VCP 509'
6" VCP 510'
6" VCP 510'
8" VCP 510'
8" HDPE 510'
8" VCP 510'
8" HDPE 511'
8" HDPE 511'
10" HDPE 511'
12" VCP 512'
12" VCP 513'
10" HDPE 513'
8" VCP 514'
8" VCP 515'
6" VCP 516'
H4-018
H4-067
H4-004

12.8 7.1
H4-005
H4-008
H4-013
H4-014
H4-017
H4-019
H4-021
H4-027
H4-028
H4-031
H4-039
H4-047
H4-050
H4-052
H4-058
H4-059
H4-063
H4-068
H4-070
H4-071
H4-074
H4-114
H4-082
I5-094
H4-141 H4-072

13.7 15.8

6.3 14.8

8.4 13.6

13.8 6.8

4.9 7.4

9.1 7.2

13.8 6.4

7.3 9.1

7.1 7.6

7.3 6.4

6.3 6.7
6 H4-109
H4-104
H4-136
H4-076
I4-038
H4-011
H4-015
H4-029
H4-032
H4-033
H4-038
H4-045
H4-046
H4-048
H4-055
I4-030
H4-061
H4-062
H4-099
H4-101
H4-103
H4-106
H4-113
H4-119
H4-121
H4-123
H4-001
H4-077
H4-083
H4-049
H4-042
H4-044
H4-065
H4-140
H4-142

6.7 6

7.3 7.1

6.3 7.5

5.6 7.2

13.5 4.5

6.8 6.8

8.6 7.4

6.2 6.1

6.3 6.5

6.7 6.1

6.9 6.9
H4-009
H4-016
H4-034
H4-035
H4-036
H4-053
H4-054
H4-057
H5-019
H4-073
H4-100
H4-107
H4-116
H4-081
H4-051
H4-030
H5-230

6.6 13.1

7.3 7.7

6.2 5.7

12.6 6.2

7.4 5.8

6.3 6.4

5.3 6

13.9 6.1

8.2 5

6.3 5.4
5 H4-024
H4-025
H4-056
H4-066
H4-111
H4-122
H3-141
H4-095
H4-079
H4-043
H4-137

9.4 7.3

6.7 6.9

6.2 3.1

11.4 I4-036
H4-041
I4-014
I4-028
H4-097
H4-120
H4-124
H4-003
H4-012
H4-138
H4-144

14.9 6.7

6.2 7.1

8.2 6.5
7 8

9.6 6.1

3.6 H4-006
H4-007
H4-020
H4-037
H4-060
H4-069
H4-105
H4-112
H4-002
H4-139
H4-143
H4-118
H4-040
H4-023

6.9 /
12"VCP17'
/
UNK21'/
6" VCP
25'
/ 6" PVC 27'
/
12"
VCP
29'
/ 8" VCP30'
/ 6" PVC32'
/ 6" VCP27'
/ 6" VCP 44'
/
8" VCP 47'
/ 6" VCP 47'
/ 8" HDPE 57'
PVT 8" , 99'
PVT 8" , 174'
81 26
83 113
50 221
150
89 215
126
189
168
387
110
81 217
130
260
134
161
126
34 116
209
206
218
412
72 112
143
96 234
159
64 238
206
110
141
13 332
124
215
380
457
203
77 160
217
233
66 238
169
48 86
192
28 55
212
73 105
66 172
212
79 439
50 62
55 125
87 176
313
228
361
49 183
65 124
230
81 116
36 118
106
152
82 243
126
236
109
150
118
96 59
68 156
140
69 264
368
397
175
344
92 100
130
240
280
110
108
192
199
115
302
198
333
109
340
32 50
383
346
67 49
303
145
192
94 13
240
419
180
286
61 407
245
198
127
126
104
54 177
139
104
95 91
408
67 362
57 307
84 350
231
200
71 156
136
413409417
183
187
218
358
280
135
93 378
138
179
306
429
157
200
54 28
106
136
279
337
60 203
381
310
360
413
77 263
411
295
136
49 289
194
171
101
140
78 188
418
154
192
241
152
441
70 411
399
138
94 359
392
234
77 241
84 75
275
209
377370
92 296
188
228
185
145
250
126
204
121
92 413
101
73 761
183
186
131
75 80
108
310
423
389
346
263
230
136
257
276
226
160
267
212
408
177
344
290
228
409
167
109
234
200
307
115
84 266
286
240
152
107
326
163
65 94
229
77 242
125
304
222
162
230
190
132
82 156
9469
162
285
81 117
385
183
306
116
126
405
272
209
336
762
733
102
471
341
1080 416
322
418
540
312
555
383
305
316
168
686
575
430
218
205
430
427
660
747
340
318
1151
230
251
282
207
360
1157
230
435
440
213
282
317
203
375
454
223
484
504
240
866
370
1072
461
312
1209
205
572
278
1120
401
168
215
471
348
171
368
250
240
775
1085
515
560
444
262
337
304
266
838
560
344
246
761
135
980
483
320
645
410
422
436
230
191
1067
650
244
200
365
153
170
997
320
954
784
248
210
295
214
468
509
530
471
439
340
945
406
658
826
545
140
551
350
560
209
450
442
425
1067
1040
215
321
465
226
236
253
308
229
361
380
1245
236
457
315
735
585
648
340
126
664
525
455
747
819-835
844
831
1164
1097
228
1025
220
1107
258
232
555
154
696
459
242
990
278
565
201
500
1062
360 241
755
1060
540
327
1147
277
565
235
220
175
358 303
460
484
451
183
332
384
682
134
228
475
241
1281
200
510
502
315
759
169
570
570
135
361
205
108
420
225
698
461
305 262
181
491
350
242
1088
746
185
953
257
500
1025
435
245
756
1065
242
234
232
368
285
530
975
585
530
381
1074
220
282
100
310
239
495
213
171
227
196
565
372
436
221
220
457
494
996
156
510
181
654
1357
400
1260
231
422
217
1123
344
260
292
956
701
867
171
550
500
360
275
950
240
800
212
420
700
650
354
272
652
224
186
525
201
146
435
252
1077
1012
992
1005
990
485
276
255
245
372
108
289400
471
852
740
101
545
512
421
500
273
479
694
688
859
692
1250
241
480
895
174
475
530
167
576
341
493
278
429
320
520
550
371
210
242
208
346
336
398
963
160
540
151
206
145
656
234
439
219
1210
166
325
954
152
201
705
1060
360
274
530
274
714
520
415
1137
444
736
744
692
148
165
251
860
515
384
1040
1141
228
435
262
230
216
157
232
951
176
198
401
324 315
146
439
580
303
696
738
505
155
555
240
250
142
530
455
595
318
216
682
357
786
330
246
110
412
510
540
293
251
440
1065
1163 328
1046
452
419
1093
648
176
1069
344
221
280
223
234
1075
279
273
520
246
344
1160
345
505
245
727
515
549
1093
211
660
338
702
360
1045
252
343
1057
525
321
360
483
585
238
206
237
375
440
247
188
425
1047
899
1045
241
221-237
169
812
947
575
212
787
1090
520
160
368
362
143
145
1070
394
395
726
1122
215
155
473
320
210
372
678
191
748
650
211
485
743
535
256
421
850
958
307
535
696
191
396
237
461
227
460 369
1146
190
356
1063
1000
211
909
319
698
545
337
853
175
371
255
1076
424
229
842
271
725
570
254
253
420
233
694
240
662
745
535
575
181
434
921
845
491
187
386
505
272
570
459
420
801
1080
856
774
635
965
260
690
229
380
1043
241
259
371
857
298
682
555
253
574
450
310
299
550
408
272
221
1097
233
336
300
191
1079
161
280
210-258
474
217
180
465
952
750
364
203
207
525
403
407
173
350
194
249
215
222
707
449
933
250
176
250
264
206
438
411
555
823
370
235
701
124
938
437
229
900
171
395
416
236
481
655
228
270
990
211
545
432
339
229
217
480
424
444
1274
230
228
226
789
655
541
543
520
For information only. The City of Mountain View does not warrant the accuracy of the information contained herein. © Sanitary Sewer System
±
High Density Polyethylene
Perforated Asbestos Cement
Perforated Plastic Pipe
Plastic/Steel Composite
Polyethylene
HDPE
PACP
PPP
PSC
PE
Asbestos Cement
Concrete (Non-Reinforced)
Corrugated Metal
Cured In Place
Ductile Iron
AC
CP
CMP
CIPP
DIP
Polyvinyl Chloride
Pre-Stressed Concrete Cylinder
Reinforced Concrete
Reinforced Plastic (Truss)
Steel
PVC
PCCP
RCP
RPM
SP
6859-41 Plan ID
Unknown
Vitrified Clay
UNK
VCP
03/18/2025
H4
G3 G4 G5
H3 H4 H5
I4 I5I3
H
O
T
S
P
O
T
S
1-Month
3-Months
6-Months
12-Months
Parcel Alerts
Notify
1 inch = 133 feet 1:1600
0 130 26065
Feet
City Limit
Trail, Unpaved
Trail, Paved
Creek
Lake, Pond
Park, Open Space
Road Edge
RR, Double Track
RR, Single Track
123 Parcel, Address
Manhole, ID, Depth & CleanoutH4-174

6.3 Lateral & Dist. from DnStream Manhole
107'
Main - Diameter, Material, Length, Flow12" RCP 91'
?
2-way Cleanout
Private Main?
Pump Station & Plug±
PS
Grease SeperatorGS

Sewage Pump Station January 2018 Maintenance
Name Date
Wash and inspect building.

Clean and inspect generator.

Cut weeds and blow out micro turbine area.

Cut weeds and ivy around station.

Blow and sweep driveway and transformer area.

Pick up garbage around site.

Check fire extinguishers and sign tag.

Test and sign eye wash tag.

Check safety equipment.

Sweep outside stairs.

Clean bathroom and empty trash.

Calibrate portable gas monitors.

Inspect and log SCBAS.

Inspect all fans.

Clean odor scrubber room, clean and inspect scrubber.

Run and inspect generator.

Run and inspect pump #2.

Grease pumps and couplings.

Purge air bubbler.

Drain water and inspect compressors.

Check oil and wipe off compressor motors.

Clean motor room and wipe off equipment.

Clean pump room and wipe off equipment.

Test and inspect sump pump.

Inspect motors and pumps.

Clean wet well and inspect grinder rotation.

Check wet well fire extinguisher and sign tag.

Inspect and wash off slews gate.

Inspect Vickers unit and wipe off.

Check camera operation.

Clean control room and wipe off equipment.

Clean vent on odor scrubber.

Clean all vents above back doors.

Clean vent room above panels.

Inspect cranes and operate.

Check and fill oil on #2 pump and generator.

Check and fill radiators on pump #2 and generator.

Check stationary gas monitor operation and level.

Check alarm panel.

Sweep stairs inside station.

Inspect belts on both compressors.

Service Odor scrubber media from top ports, clean filter and housing.

Comments Additional maintenance preformed or needed. Contractors Pastel Lane Lift Station November 2018 Maintenance
Date Name
Pick up trash around site and clean vault.

Check vault and manhole.

Fill line and test pump. Turn pump off when ariving for the PM to fill vault.

Check oil level.

Check belt.

Comments
Contractors
Additional maintenance preformed or needed.
p. 1 of 3
Example Remote Monitoring SCADA Screens – Shoreline Pump Station

p. 2 of 3

p. 3 of 3
Example Remote Monitoring SCADA Screens – San Antonio Mixing Station

p. 1 of 3 May 2018
Standard Operating Procedure for Sewer Cleaning

Purpose

The purpose of this Standard Operating Proced ure is to ensure that sewer cleaning is performed in a manner that will produce a high-quality work product. Quality is important because it ensures that the sanitary sewers will not experience problems prior to their next scheduled cleaning.

Note: Portions of this SOP may be superseded or modified by SOPs developed specifically for the VacCon Flushing and Rodding operations.

Goal

The goal of cleaning a gravity sewer is to restore the flow area to 95 percent of the original flow area of the pipe.

Required Equipment and Tools

1. Personal protective equipment (hardhat, steel toe boots, gloves, eye/face protection, hearing protection).

2. Calibrated gas detector.

3. Proper safety cones/barricades/flagging/signs or other traffic-control devices.

4. Confined space equipment—tripod, harness, and ventilation blower.

5. Sanitary sewer system map book.

6. Combo (jet rodder/vacuum) truck.

7. 45-degree sewer cleaning nozzle and root saws.

8. Manhole hook or pickax.

9. Measuring wheel.

10. Disinfectant.

Required Forms
• Cleaning work order.
• Daily truck report form.
• Damage report form.

p. 2 of 3 May 2018
Procedures for Sewer Cleaning Crew

Prior to Leaving the Yard

1. Plan the work so that it starts in th e upstream portion of the area and moves downstream.

2. Wherever possible, plan to clean sewers from the downstream manhole.

3. Inspect the sewer cleaning nozzles for wea r. Replace nozzles that are excessively worn.

At the Job Site

1. Wear proper personnel protective equipment (PPE).

2. Fill the water tank at or near the first job site.

3. Determine and confirm location of up stream and downstream manholes (use manhole identification numbers if possible).

4. Look for any overhead utilities that may come into contact with the vacuum boom during the cleaning operation.

5. Set up proper traffic control by placing t raffic signs, flags, cones, and other traffic- control devices.

6. Move the cleaning unit into the traffic contro l so that the hose reel is positioned over the manhole.

7. Open the manhole and use the gas detector to determine if it is safe to proceed with the cleaning operation.

8. Install the 45-degree sewer cleaning nozzl e of choice or root saw on the hose.

Cleaning Operation

1. Start the auxiliary engine.

2. Lower the hose, with a guide or roller to protect the hose, into the manhole and direct it into the sewer to be cleaned.

3. Start the high-pressure pump and set the engine speed to provide adequate pressure for the sewer cleaning operation.

4. Open the water valve and allow the hose to proceed up the sewer. The hose speed should not exceed 3’ per second.

5. Allow the hose to proceed 25 percent of th e length of the sewer (or 50’ minimum) and pull the hose back (only in heavy grit lines).

6. Observe the nature and the quantity of debris pulled back to the manhole.

7. If there is little or no debris, allow the hose to proceed to the upstream manhole. p. 3 of 3 May 2018

8. If there is moderate to heavy debris, clea n the remaining portion of the sewer in steps not to exceed 25 percent of the length of the sewer (or 50’ minimum).

9. Open the upstream manhole and verify that the nozzle is at or past the manhole.

Rely on map footage and hose reel footage. If there is a conflict, check upstream manhole to verify.

10. The sewer has been adequately cleaned when successive passes with a cleaning nozzle do not produce any additional debris.

11. Determine the nature and quantity of th e debris removed during the cleaning operation. Use the codes shown in the table below to report the nature and quantity of debris.

12. Remove the debris from the manhole using the vacuum unit (The operator may vacuum during flushing pull-back operations).

13. Rewind the hose on the reel.

14. Clean the mating surface and close the manhole. Ensure that the manhole is properly seated.

15. Enter the results on the work order.

16. Move the cleaning unit, break down and stow the traffic controls.

17. Proceed to the next cleaning job site.

Nature and Quantity of Debris Removed During Cleaning

Type of Debris Clear
(no debris)
Light Moderate Heavy
Sand, grit, rock CLR DL DM DH
Grease CLR GL GM GH
Roots CLR RL RM RH
Other (specify) CLR OL OM OH

At the End of the Day

1. Inspect the equipment and tools for problems.

2. Report any problems with equipment, tools, or sewers that were cleaned during the day to the Supervisor and crew leaders.

3. Submit daily work reports to the Supervisor at end of shift.

Major Sewer System Equipment

Equipment
Number Major Equipment Type Year Purchased
2807 Combination Cleaning Unit (VacCon) 2017
2808 Combination Cleaning Unit (VacCon) 2017
2102 Service truck w/ #7022 rodder (2016) and
lateral camera (2017)
2007
2128 Service truck w/ #7023 rodder (2016) and
lateral camera (2017)
2016
5300 Emergency Response Trailer 2007
2806 Dump Truck, 10 cubic yard (International) 2010
492 Backhoe (Caterpillar) 2017
449 Trash Pump, 6” (Deutz) 1987
702 Trash Pump, 4” (Gorman Rupp) 1991
833 Confined Space Trailer 1988

APPENDIX C

DOCUMENTS RELATED TO

DESIGN AND PERFORMANCE PROVISIONS

1. Standard Design Criteria for Sanitary Sewers

2. Standard Provisions for Sanitary Sewers

3. Standard Details Sanitary Sewers
Design Criteria - 1
Standard Design Criteria for Sanitary Sewers

These design criteria apply to all new and re habilitated sanitary sewer system facilities within the City of Mountain View. Any variat ions from these criteria require the prior approval of the Public Works Director. Requ ests for variations must be accompanied by information supporting the need for the variat ion, including an assessment of available alternatives and related drawings and calculations.

The following abbreviations are used: grou ndwater infiltration (GWI), base wastewater flow (BWF), rainfall derived inflow and infiltration (RDI/I), daily peaking factor (DPF), and depth to diameter ratio (d/D).

Sewer Mains

All sewer mains, whether intended for Ci ty maintenance or homeowner association maintenance, will be designed to these standards.

1. Materials for Construction
a. Vitrified Clay Pipe (VCP), extra stren gth (ASTM C700) with elastomeric joints (ASTM C425); or
b. Polyvinylchloride Pipe (PVC), SDR 26 (ASTM D3034 or F679) i. C900 PVC may be used in place of SDR 26 PVC.

2. Sewer Location and Alignment
a. Locate sewer mains on street centerline.
b. The minimum distance from underground utilities is:
i. Domestic water main:
(1) Sewer mains will not cross domestic water mains unless absolutely necessary.
(2) When sewer mains cross domestic water mains, the minimum distances measured between the outside wall of the pipe at the closest location will be:
(a) 10’ horizontally.
(b) 1’ vertically with the sewer main located below the elevation of the domestic water main.
(c) The sewer main joints will be located as far as possible on either side of the point of crossing.
ii. Underground pipes, conduits, structures, or other utilities:
(1) 5’ horizontally and 1’ vertically measured from the closest outside wall. c. Sewers with vertical or horizontal curves are not allowed.

Design Criteria - 2

3. Size
a. The minimum size for sewer mains is 8”.

4. Depth
a. The minimum depth from finished grade to sewer invert is 5’. i. The minimum depth for unfinished st reets where street grades have not been set is 6’ from the existing grade.
b. The maximum depth from finish ed grade to sewer invert is 22’.

5. Slope
a. The minimum slope will be 0.004’/1’ (0.04 percent).
b. The design slope shall provide a veloci ty of 2’/second when the sewer is flowing half full (d/D = 0.5) where d/D refers to the depth-to-diameter ratio. i. Wherever possible, the design sl ope will provide a velocity of 2’/second during peak daily dry weather flow.
c. The maximum slope will be limited to a velocity of 10’/second during any flow condition.

6. Capacity
a. The design flow will be calcul ated using the following criteria:
i. Residential Design flow = GWI + BWF + RDI/I where:
(1) GWI + RDI/I = 800 gallons per acre per day
(a) This value is for use on sewers ≤ 10” in diameter.
(b) This factor will be establishe d using actual flow data for all other cases.
(2) BWF = Population Served x Daily Peaking Factor x 90 gallons per capita per day where:
(a) Population Served = pr ojected population at build-out. ii. Nonresidential Design Flow
(1) Nonresidential sewage generation factors shall be:
(a) Commercial 100 gpd/1,000 square feet
(b) Office/R&D 150 gpd/1,000 square feet
(c) Mixed Use 100 gpd/1,000 square feet
(d) Industrial 60 gpd/1,000 square feet
(e) Public 15 gpd/employee
(f) Employment 15 gpd/employee
(g) Restaurant 1,000 gpd/1,000 square feet
iii. Daily Peaking Factor, DPF:

Design Criteria - 3
(1) 0 to 199 upstream connections, DPF = 2.5
(2) 200 to 1,000 upstream connections, DPF = 2.2
(3) > 1,000 upstream connections, DPF = 1.8
iv. Maximum Depth of Flow will be:
(1) Sewers ≤ 12” in diameter, d/D = 0.5
(2) Sewers > 12” in diameter, d/D = 0.75
b. The sewer capacity will be calculated us ing Manning’s Equation with the friction factor, n = 0.013.

7. Manholes
a. Provide a 0.1’ drop in flow line at all manholes.
b. Manholes will be installed:
i. At all changes in direction, slope, pipe size, and pipe material. ii. At the intersection of all sewer mains.
iii. The soffit (or crown) elevation of smaller sewer mains shall match the soffit elevation of larger sewer mains.
iv. At the upstream end of all sewer mains.
(1) At the property line where a priv ate sanitary sewer connects to the City- maintained sewer main.
v. Nominally every 300’ along the sewer main with the maximum distance not to exceed 350’.
vi. At 8” or larger lateral connections
c. Drop manholes will be installed when the flow line of the sewer main entering the manhole is 30” or more above the manhole flow line. d. End-of-line cleanouts are not allowed.
i. Cleanouts may be used at the temporary ends of sewer mains.

8. Siphons
a. Siphons will be avoided whenever possible.
b. The minimum flow line drop across siphons will be 2’. c. Siphons will have a minimum of two barrels.
i. One barrel will be designed to provid e a velocity of at least 2’/second during peak daily dry weather flows.
ii. The second barrel will be designed:
(1) Flow will enter the second barrel when the flow line is at or above the crown of the first barrel.
(2) The second barrel will be designed to accommodate peak wet weather flows.

Design Criteria - 4
iii. Additional barrels will be design ed to accommodate intermediate flow conditions if warranted.
d. Siphon inlet and outlet structures will be designed:
i. To provide for the installation of stop logs to direct flows. ii. To provide for adequate room to accommodate siphon cleaning equipment. e. Siphon material will be ductile iron pi pe (AWWA C111) with interior and exterior corrosion-protection and passive cathodic-protection system.

9. Pump Stations
a. Public pump stations are not allowed.
b. Private pump stations are not allowed.
c. Individual pump stations serving a single dwelling unit are not allowed.

10. Rehabilitation
a. Sewer main rehabilitation methods will include:
i. Pipe bursting.
ii. Open cut.
b. Manholes will be replaced or rehabilit ated when sewer mains are rehabilitated. c. Lower sewer service laterals between the sewer main and the property line will be replaced or rehabilitated when sewer mains are rehabilitated. i. Service lateral connections to the s ewer main will be reinstated by excavating the lateral and installing a factory wye, tap, or watertight/ root-tight saddle. ii. In-situ or internal service lateral reinstatement is not allowed.

Sewer Service Laterals

All sewer service laterals will be designed to these standards.

1. Materials for Construction
a. Polyvinylchloride Pipe (PVC), SDR 26.

2. Individual laterals will be installed from each dwelling unit to the sewer main.

3. Lateral Location and Alignment
a. Laterals will be connected to manholes wherever possible. i. Laterals in cul-de-sacs will be connected to manholes. The invert of the lateral will be located at the flow line of the manhole (no drop will be allowed). b. Laterals will not be located:
i. Under driveways.
ii. Within 5’ horizontally from domestic water service.

Design Criteria - 5
iii. Within 10’ horizontally from the drip line of any existing or planned street trees.
c. The location of laterals will be stationed on the design drawings. d. Lateral alignment will be at right angl e or radial to the street right-of-way. e. Lateral alignment will be marked where it crosses under the curb with a 1” high “S” stamped or ground into the concrete.

4. Size
a. The minimum size for detached, single-family dwellings is 4”. b. The minimum size for all other connections is 6” or larger if required to provide adequate capacity.

5. Depth
a. The minimum depth from finished grade to sewer invert is 4’ at the back of the sidewalk or property line for easement sewers.
b. Deep sewer risers are required where the depth of the sewer main is 10’ or greater.

6. Slope
a. The minimum slope will be 0.02’/foot (2 percent).

7. Cleanouts
a. All sewer service laterals will have cleanouts as shown on the Standard Details. b. Cleanout size and type will be:
i. Single-family residential—4”, one-way.
ii. All others—full size, one-way.
c. Cleanouts in paved areas will have traffic-rated metal covers.

8. Backflow Prevention Valve
a. Any dwelling unit or other connection where the elevation of the lowest floor is less than 1’ above the elevation of the rim of the next downstream manhole must install a sewer backwater prevention valve.
b. The property owner is responsible for th e proper installation and maintenance of the backflow prevention valve.

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SECTION 32: SANITARY SEWER INSTALLATION

32-01 SCOPE. The Work shall consist of furnishing and installing sewer mains, manholes, laterals, cleanout fittings and appurtenances; and testing, flushing and cleaning the same in accordance with the Plans and these Standard Provisions.

32-02 MATERIALS.

32-02.01 Vitrified Clay Pipe. Vitrified clay pipe and fittings shall be bell and spigot, unglazed, extra strength, conforming to ASTM C700, as amended to date.

32-02.02 Polyvinylchloride Pipe. Polyvinylchloride pipe and fittings shall be bell and spigot, conforming to ASTM D3034 (SDR 26) for diameters from four inches (4”) through fifteen inches (15 ”) and ASTM F679 for diameters from eighteen inches (18”) through twenty- four inches (24”), as amended to date.

32-02.03 Vitrified Clay Pipe Joints. Vitrified clay pipe joints shall be of the resilient preformed type conforming to ASTM C425, as amended to date, except that rubber sleeve (Band-Seal) couplings will not be allowed in new main or new lateral installation.

32-02.04 Polyvinylchloride Pipe Joints. Polyvinylchloride pipe joints shall be bell gasketed joints. Gaskets shall meet the requirements of ASTM F477. The joints shall meet the requirements of ASTM D3212.

32-02.05 Precast Manhole Sections and Castings. These items shall con- form to Section 31, “Storm Drain Installation,” of these Standard Provisions.

32-02.06 Standard Sewer Main Cleanouts. Standard sewer main clean- outs built in accordance with the Standard Details shall be installed where shown on the Plans.

32-02.07 Sewer Laterals and Cleanouts. Sewer laterals and cleanouts shall be constructed of materials specified in the Standard Details. Sewer lateral cleanouts shall be the same size as the sewer lateral.

32-02.08 Portland Cement, Portland Cement Concrete and Mortar. These items shall conform to Section 31, “Storm Drain Installation, ” of these Standard Provisions.

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32-03 CONSTRUCTION METHODS.

32-03.01 Handling of Materials. Vitrified clay pipe, polyvinylchloride pipe, fittings, precast concrete manhole sections, and cast iron frames and manhole covers must be carefully handled at all times. Only suitable and proper equipment and appliances shall be used for the safe loading, hauling, unloading, handling and placing of all materials. Special care shall be exercised so that the preformed resilient joints on pipe and fittings will not be damaged. Any pipe or fitting with a joint damaged or flattened will be rejected.

32-03.02 Trenching. Trench excavation, shoring, grade control, backfill and resurfacing shall conform to Section 24, “Trench Excavation, Backfill and Resurfacing,” of these Standard Provisions.

32-03.03 Pipe Laying. Pipe laying shall proceed upgrade with the spigot end of bell and spigot pipe pointing in the direction of flow. Each pipe shall be laid true to line and grade and in such a manner as to form a close, concentric joint with the adjoining pipe and to prevent sudden offsets in the flow line. As the work progresses, the interior of the sewer shall be cleaned of all dirt and debris. Pipe shall not be laid when the condition of the trench or the weather is unsuitable. When Work is not in progress, open ends of pipe and fittings shall be plugged. As pipe laying proceeds, bell holes shall then be excavated at each joint to facilitate the jointing operations and shall be only of sufficient size for that purpose.

32-03.04 Manholes. Manholes shall be located as shown on the Plans and installed in accordance with the Standard Details. When a manhole is constructed over an existing sewer main, City Inspector shall be present when the Contractor makes the cut into the existing main.

32-03.05 Cleanouts. Cleanouts on mains and laterals shall be installed in accordance with the Standard Details.

32-03.06 Sewer Laterals. Sewer laterals shall be installed in accordance with the Standard Details. All taps into existing sewer mains shall be made by machine taps (“Tap Tite”), or, for VCP only, utilize Mission Clay insertion wye with Band-Seal fittings. Stamp or grind an “S” on the curb face where a sewer lateral crosses under the curb if no “S” currently exists.

32-03.07 Testing Sewer Lines.

a. Exfiltration/Infiltration Testing. Sewer pipe joints and man- holes shall be so watertight that leaking into the sewer by groundwater infiltration shall not exceed 0.039
gallons per minute, per inch diameter, per one thousand feet (1,000’) of

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main line sewer and sewer laterals being tested. The measure of the infiltration shall be defined as the exfiltration out of the pipeline when the lower end is plugged at the manhole and the upper end is filled at a manhole so as to create a hydrostatic head in the line of a minimum four feet (4 ’) and a maximum five feet (5’) above the invert at the upper end of the line. If groundwater is encountered, the head above the invert of the pipe at the upper end of the line shall be increased so that the net hydrostatic head shall be a minimum of four feet (4’) and a maximum of five feet (5’ ). The amount of exfiltration in one (1) hour measured through a water meter or other convenient device by bringing the water level back up to the starting level at the upper manhole shall determine the rate of exfiltration. The Contractor shall furnish and install the necessary and required plugs for the tests. The length of the laterals entering the section of main line being tested shall be included.

b. Air Testing. Air testing of sewer mains may be allowed in lieu of exfiltration/infiltration testing.

Air testing of vitrified clay pipe shall be in accordance with ASTM C-828, “Standard Test Methods for Low-Pressure Air Test of Vitrified Clay Pipe Lines.” Air testing of PVC pipe shall be in accordance with the requirements specified in the most current Uni-B-6 pamphlet, “Recommended Practice for Low-Pressure Air Testing of Installed Sewer Pipe ” issued by the Uni-Bell PVC Pipe Association, or as per the pipe manufacturer ’s specifications. At the approval of the Engineer, air testing of HDPE pipe installed by pipe-bursting method may be in accordance with the most current Installation Test Standard IS-16 issued by the International Association of Plumbing and Mechanical Officials.

c. Acceptance . During the testing and flushing operation, a wire screen with a one-quarter of an inch (1/4 ”) mesh or smaller shall be placed over the downstream outlet of the lower manhole to prevent any debris from being washed into the existing sewer system.

In no case shall the Contractor place the newly constructed sewer in operation without the approval of the Engineer.

In the event that infiltration or leakage exceeds the limits indicated above, the Contractor shall, at his own expense, immediately proceed to make necessary repairs, and no further payment shall be allowed, nor shall the project be finally accepted, until the tests indicate that the entire project meets the above requirements.

The Contractor shall furnish the necessary pumps, water, labor, equipment and materials and shall assist the Engineer in making tests of the completed sewerage project before the system is placed in operation or connected to other lines.

PWK/Standard Provisions (Rev. 07/2019) -96 -

The Engineer shall designate the length or section of the sewer to be tested and may approve portions or all of the project without testing.

32-03.08 Flushing and Cleaning Sewer Lines. After all backfilling and pavement restoring operations have been completed, the Contractor shall flush and clean all sanitary sewer lines in the following manner, under the supervision of the Engineer or Inspector:

A heavy rubber ball, such as “
MacWane Ball,” manufactured by
Sidu Company, Long Beach, California, or approved equal, inflated with air, and having an outside diameter equal to the interior diameter of the pipe to be cleaned, shall be furnished by the Contractor. The ball shall be inflated so that it will fit snugly into the sewer line. The ball shall be placed in the last (upper) manhole on the line and water introduced into the manhole back of the ball. The ball shall pass through the pipe with only the pressure of the water behind it. The rate at which the ball is allowed to pass through the pipe shall be controlled by a rope at all times. Debris flushed ahead with the ball shall be removed at the lower manhole where its presence is evident. This cleaning shall be conducted on each section of pipe installed. Care shall be exercised not to feed the ball too rapidly in order that all debris can be removed at each manhole.

During the flushing and cleaning operation, a wire screen with a one
-quarter of an inch (1/4 ”) mesh or smaller shall be placed over the downstream outlet of the lower manhole to prevent any debris from being washed into the existing sewer system.

32-03.09 Television Inspection. After completion of the pipe installation, service connections, flushing and cleaning, the sewer line shall be televised with a color closed-circuit television with tilt-head camera recorded in VHS format. The original videotape and log sheets shall be provided to the Engineer.

32-03.10 Abandoning Existing Sewer Mains. The existing sewer main to be abandoned shall be cut a minimum of twelve inches (12 ”) clear of the manhole and abandoned in place at the location shown on the Plans after the new sewer is installed.

The main shall be filled with sand and ends plugged with a minimum of six inches (6 ”) of Portland cement concrete at each required cut.

32-04 MEASUREMENT.

32-04.01 Sewers. Sewers shall be measured horizontally by the linear foot.

The measured distance for payment shall be the total distance along the centerline of the pipe, including all connections, less the design distance between the ends of the pipe

PWK/Standard Provisions (Rev. 07/2019) -97 -
in manholes through which the pipe does not pass. Whenever split pipe is required through a manhole, such pipe shall be included in the measurement.

32-04.02 Sewer Lateral. Sewer laterals shall be measured horizontally by the linear foot from the centerline of the main sewer to the end of the lateral, and shall include all fittings and connections.

32-04.03 Manholes. Manholes shall be measured as one complete installed unit, including base, precast sections, frame and cover.

32-04.04 Standard Sewer Main Cleanout. Standard sewer main cleanout shall be measured as one complete installed unit, including frame, cover and pipe.

32-04.05 Sewer Lateral Cleanout. Sewer lateral cleanouts shall be measured as one complete unit, including fittings, cleanout plug, box, cover (including metal traffic cover where required on the Plans or in the Special Provisions) and pipe.

32-04.06 Trench Surfacing. Trench surfacing shall not be measured for payment and shall be considered paid for under various items of Work.

32-04.07 Rechanneling Manhole Bases. Rechanneling manhole bases and breaking into manholes shall not be measured for payment and shall be considered as paid for in the various items of Work.

32.04.08 Television Inspection. Television inspection shall not b e measured for payment and shall be considered paid for in the various items of Work.

32.04.09 Abandoning Existing Sewer Mains. Existing sewer main pipe- lines to be abandoned shall be measured as one complete unit, including concrete for both ends.

32-05 PAYMENT.

32-05.01 Sewer Main. The price per linear foot of sewer main shall include all wye branches and connections shown on the drawings; all labor, materials and pipe necessary to excavate the trench, bed, place and joint the pipe; backfill the trench; flushing, cleaning, testing and televising; all other work necessary to produce a complete and finished job, as required in the Special Provisions, shown on the Plans and specified herein.

32-05.02 Sewer Lateral. The price per linear foot of sewer lateral shall include one-eighth (1/8) bends, pipe, connections to main line sewer and all labor and materials necessary to excavate the trench, bed, place and joint the pipe; backfill the

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trench; and all other work necessary to produce a complete and finished job as required in the Special Provisions, shown on the Plans and specified herein.

32-05.03 Manhole. The Contract unit price paid for each manhole shall include full compensation for all labor, materials, tools and equipment, and for doing all Work, including excavation, backfill, compaction and resurfacing, as required in the Special Provisions, shown on the Plans and specified herein.

32-05.04 Standard Sewer Main Cleanout. The Contract unit price per each “Standard Sewer Main Cleanout ” shall include full compensation for all labor, materials, tools and equipment and for doing all Work necessary and incidental to furnishing and installing a cleanout complete as required in the Special Provisions, shown on the Plans and specified herein.

32-05.05 Sewer Lateral Cleanouts. The Contract unit price per each sewer lateral cleanout shall include full compensation for wye branch, one-eighth (1/8) bend, riser, iron body cleanout with plug, box and lid, connection to lateral, labor, materials, tools and equipment, excavation, backfilling and resurfacing, required in the Special Provisions, as shown on the Plans and specified herein.

32-05.06 Abandoning Existing Sewer Mains. The Contract unit price for each sewer main pipeline that is abandoned shall constitute full compensation for all Work and materials required to complete the abandonment of the sewer main as required in the Special Provisions, shown on the Plans and specified herein.

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SECTION 31: STORM DRAIN INSTALLATION

31-01 SCOPE. This work shall consist of furnishing and installing reinforced pipe, storm drains, manholes, inlets, underdrains, fittings and all other materials and appurtenances in accordance with the Plans and these Standard Provisions.

31-02 MATERIALS.

31-02.01 Reinforced Concrete Pipe. Reinforced concrete pipe shall con- form to the requirements of ASTM C76, as amended to date. The wall design shall be at the option of the manufacturer. The manufacturer shall furnish to the City certificates showing that the pipe conforms to the specified ASTM designation. All pipe shall be Class III unless otherwise shown on the Plans. Nonreinforced concrete pipe meeting all requirements of reinforced concrete pipe may be substituted for all sizes twenty-fou r inches (24”) in diameter and smaller.

Pipe designated by D-Load shall be marked as described in the ASTM Specifications except that the D-Load shall be marked on the pipe. The D-Load shall be determined during tests as described in the ASTM Specifications.

31-02.02 Reinforced Concrete Pipe Joints. Pipe shall be constructed with self-centering joints.

31-02.03 Precast Manhole Sections. Precast manhole sections shall con- form to size, shape and details shown on the Standard Details. Precast reinforced concrete manhole risers, cones and grade rings shall conform to ASTM Designation C478 as amended to date.

31-02.04 Castings. Castings for manhole rings, cover and other purposes shall conform accurately to the form and dimensions shown on the Standard Details.

The surface of casting shall be reasonably smooth, free from defects of any kind and the castings shall conform to the requirements of ASTM
A48, Class 30B as amended to date.

Bottom rim of cover and seat of frames shall be machined to form a close fit free from wobble. The combined weight of cover and frame shall exceed two hundred sixty-five (265) pounds.

Before leaving the foundry, all castings shall be thoroughly cleaned and coated by dipping in asphalt applied at a temperature of three hundred degrees (300°) Fahrenheit in such a manner as to provide a firm, durable, tenacious coating.

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31-02.05 Inlets. All inlets shall conform to size, shape and details as shown on the Standard Details. The type of inlet shall be as specified on the Plans or in the Special Provisions.

31-02.06 Inlet Grates and Grate Frames. Inlet grates and grate frames shall conform to size, shape and details as shown on the Standard Details or on the Plans. Rectangular frames shall be fabricated from structural steel conforming to the requirements of ASTM A36. The bar portion of the frames may be fabricated from special quality, hot rolled steel bars conforming to the American Iron and Steel Institute Designation No.

C1021. Frames and grates shall be match marked in pairs before delivery to the job site and the grates shall fit into their frames without rocking.

31-02.07 Reinforcing Bars. Reinforcing bars shall be deformed billet steel bars conforming to the specifications of ASTM A615, Grade 60, including Supplementary Requirement S1 and shall be of the size shown on the Standard Details or on the Plans. Bars shall be of the round deformed type; free from injurious seams, flaws or cracks; and shall be cleaned of all rust, dirt, grease, loose scale and any other coating of any character that would destroy or reduce the bond.

31-02.08 Portland Cement Concrete. Portland cement concrete for man- hole bases, inlets and other concrete structures shall conform to the requirements of Section
90, “Portland Cement Concrete, ” of the Standard Specifications and specified herein.

The concrete shall be Class ”A” containing six (6) sacks of Portland cement per cubic yard of concrete. The grading of the combined aggregate shall conform with the requirements of one and one-half inch (1 -1/2”) maximum. The consistency of the fresh concrete shall be such that the slump does not exceed four inches (4”) as determined by Test Method No.

California 520. The concrete shall have a
minimum compressive strength of 3,300 PSI after twenty-eight (28) days.

31-02.09 Mortar. Mortar shall conform to the requirements of Section 65, “Reinforced Concrete Pipe,” of the Standard Specifications.

31-02.10 Underdrains. Underdrains shall conform to Section 68, “Subsurface Drains,” of the Standard Specifications.

31-02.11 Underdrain Risers. Underdrain risers shall conform to Section 68, “Subsurface Drains,” of the Standard Specifications.

31-02.12 Curb Drains. Curb drains shall conform to the Standard Details and shall be located where shown on the Plans.

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Three-inch (3 ”) ductile iron pipe for curb drains shall conform to ASTM designation.

31-03 CONSTRUCTION METHODS.

31-03.01 Trenching. Trench excavation, shoring, grade control, backfill and resurfacing shall conform to the requirements of Section 24, “Trench Excavation, Backfill and Resurfacing,” of these Standard Provisions.

31-03.02 Handling of Material. Reinforced concrete pipe, precast concrete manhole sections, inlet frames, grates and fittings must be carefully handled at all times.

Only suitable and proper equipment and appliances shall be used for the safe loading, hauling, unloading, handling and placing of materials. Any material which is checked, spalled, out of round or damaged shall not be installed and such material must be permanently removed from the job site within twenty-four (24) hours after notification.

31-03.03 Pipe Laying. No pipe shall be laid until the Engineer inspects and approves the condition of the bottom of the trench. Pipe laying shall proceed upgrade with the tongue section of tongue-and-groove pipe pointed in the direction of flow.

Split pipe shall be used through a manhole except for changes in pipe grade, size, type or direction.

Each section of pipe shall be laid true to line and grade and in such a manner as to form a close, concentric joint with the adjoining pipe and to prevent sudden offsets in the flow line. As the work progresses, the interior of the storm drain shall be cleaned of all dirt and debris. Where clearing after laying is difficult because of small pipe size, a suitable swab or squeegee shall be kept in the pipe and pulled forward past every joint immediately after jointing has been completed. Pipe shall not be laid when the condition of the trench or the weather is unsuitable.

After the joint is assembled and if jetting is to be accomplished the same day as the pipe is installed, a moisture-resistant band of polyethylene, heavy- gauge sheeting, “
Kordite” or approved equal, shall be placed around the outside of the pipe and centered over the joint to prevent damage to the joint and entry of water and dirt into the pipe.

Concrete pipe with elliptical reinforcement shall be laid with the minor axis of the reinforcement cage in a vertical position.

31-03.04 Joints. The joints shall be completely filled and compacted with mortar so as to make a strong joint. No mortar will be required in the outside joint

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recesses of self-centering pipe. Unless otherwise approved by the Engineer, all joints shall be finished smooth on the inside of pipe.

In pipe sizes twenty-one inches (21 ”) and larger, inside joint recesses shall be hand-pointed. In pipe sizes eighteen inches (18 ”) and smaller, inside joint recesses shall be buttered prior to closure. After the closure is made, the joint shall be pointed inside the pipe and excess mortar removed by means of a long-handled brush, an inflated swab or squeegee.

31-03.05 Manholes. Manholes shall be located as shown on the Plans and installed in accordance with the Standard Details.

31-03.06 Inlets. Inlets shall be located as shown on the Plans and installed in accordance with the Standard Details and the following specifications. All the inside and exposed surfaces of concrete shall be smooth and uniform when finished and the concrete shall be thoroughly compacted around all reinforcing bars. Inlets installed in curb returns shall have angle anchors curved to conform to the curb return radius.

Precast inlets will be permitted when meeting the above requirements and when approved by the Engineer.

31-03.07 Television Inspection. After completion of the pipe installation and cleaning, the storm drain line shall be televised with a color closed-circuit television with tilt-head camera recorded in VHS format. The original video tape and log sheets shall be provided to the Engineer.

31-04 MEASUREMENT.

31-04.01 Reinforced Concrete Pipe. Reinforced concrete pipe shall be measured horizontally by the linear foot for the various strengths and sizes along the centerline of the pipe less the design distance between the ends of the pipe in manholes and inlets through which the pipe does not continuously pass. Whenever split pipe is required through a manhole, such pipe shall be included in the measurement.

31-04.02 Manholes. Manholes shall be measured as one complete installed unit, including base, precast sections, frame and cover.

31-04.03 Inlets. Inlets shall be measured as one complete installed unit, including grate and frame.

31-04.04 Underdrains. Underdrains shall be measured by the linear foot, including excavation, pipe, fittings, backfill material, building paper and appurtenances.

PWK/Standard Provisions (Rev. 07/2019) -91 -
31-04.05 Underdrain Risers. Underdrain risers shall be measured as one complete installed unit, including pipe, ells, fittings, cover and cleanout box, if required.

31-04.06 Curb Drains. Curb drains shall be measured as one complete installed unit, including inlet box and frame and grate, installation of outlet through face of curb or connection to existing inlet, pipe and wire mesh or reinforcing bars.

31-04.07 Trench Surfacing. Trench surfacing shall not be measured for payment and shall be considered as paid for in the various items of work.

31-04.08 Rechanneling Manhole Bases. Rechanneling manhole bases and breaking into manholes shall not be measured for payment and shall be considered as paid for in the various items of work.

31.04.09 Television Inspection. Television inspection shall not be measured for payment and shall be considered paid for in the various items of work.

31-05 PAYMENT.

31-05.01 Reinforced Concrete Pipe. The Contract unit price per linear foot for reinforced concrete pipe shall constitute full compensation for furnishing all labor, materials, tools and equipment and for doing all Work, including excavation, backfill, compaction, resurfacing and televising required to install the reinforced concrete pipe complete as required in the Special Provisions, shown on the Plans and specified herein.

31-05.02 Manholes. The Contract unit price paid for each manhole shall include full compensation for all labor, materials, tools and equipment and for doing all Work, including excavation, backfill and compaction and resurfacing, all as required in the Special Provisions, shown on the Plans and specified herein.

31-05.03 Inlets. The Contract unit price for each inlet shall include full compensation for labor, materials, tools and equipment and for doing all Work, including excavation, backfill and compaction and resurfacing, all as required in the Special Provisions, shown on the Plans and specified herein.

31-05.04 Underdrains. The Contract unit price per linear foot for under- drains shall include full compensation for furnishing labor, materials, tools and equipment and for doing all Work, including excavation, permeable material backfill and compaction required to install the underdrain pipe complete as required in the Special Provisions, shown on the Plans and specified herein.

31-05.05 Underdrain Riser. The Contract unit price per each underdrain riser shall include full compensation for labor, materials, tools and equipment and for

PWK/Standard Provisions (Rev. 07/2019) -92 -
doing all Work, including pipe, ells, fittings, cover and cleanout box, if required, as required in the Special Provisions, shown on the Plans and specified herein.

APPENDIX D

DOCUMENTS RELATED TO

SPILL EMERGENCY RESPONSE PLAN

1. Spill Emergency Operations Response Plan (SERP) and Pump Station Emergency Response Plans (PSERP)
Note: The above are kept under separate tabs in the SSMP binder

2. SSS Response & Reporting Form (City document)

3. Hazardous and Biohazardous Material Spill Policy and Procedure (City document)

4. Sample Warning Sign (City document)

5. Emergency Contractor Call-Out List (City document)

6. Sewer Backup Claims Procedures (City document)

7. Customer Relations Guidelines (City document)

8. Monitoring Plan

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Hazardous and Biohazardous Material Spill Policy and Procedures

1. Hazardous Materials Spills
• On occasion, a spill response may involve hazardous materials. Hazardous materials include chemicals that are explosive, flammable, combustible, oxidizers, organic peroxides, water or air reactive, toxic, corrosive, radioactive, or are otherwise harmful to people or the environment.
•
In the event of exposure to hazardous materials, contact 9-1-1 immediately. • The Wastewater Duty Person will imme diately notify the Fire Department through MV 3 Communications if any hazardous material, unknown substance, unlabeled container, large quantity of chemicals, and/or any other suspect items or circumstances are found. Be prepared to give all known information. • Immediately thereafter, contact the Wastewater Supervisor. • Once notified, the Fire Department will become the Incident Command and may give instructions to the Wastewater Section. The instructions may include traffic/perimeter control, blocking off drains, or removal of identified safe materials.
• The Wastewater Section will not be involved in hazardous material spill cleanup.
• Wastewater Section Personnel may transport identified household-type waste in closed containers back to the MOC as directed by the Fire Department. The waste must be labeled with name of wa ste, time, date, etc., and in a hazardous materials container/storage area for proper discharge.

Note: Sites of abandoned large quantities of hazardous materials should be treated as a crime scene. DO NOT TOUCH ANYTHING; PRESERVE EVIDENCE.

2. Biohazardous Materials SSOs/Spills
• On occasion, a spill response may involve biohazardous materials.

Biohazardous materials may include blood, body tissues and organs, vomit, urine, feces, other body fluids, syringes, needles, etc. •
Immediately notify the Fire Department through MV 3 Communications if you find biohazardous material spills; unkn own biological substances; unlabeled containers; large quantities of syringes , needles, or red biohazard bags; and/or any other suspect items or circumstance. Call if there is ANY reasonable doubt.

Be prepared to give all known information. The Fire Department may become the lead agency and may coordinate with the Santa Clara County Health Services Department as the situation warrants.
• Do not perform any cleanup activities you have not been trained to do. 2 of 3

3. Nonhazardous Materials Spills
• A nonhazardous material is one that is clearly identified and poses no threat. • If you have any doubt when called to clean up a spill/material, call the Fire Department through MV 3 Communications to confirm it is safe. Do not take any chances.

1. Hazardous Materials Spills
• On occasion, a spill response may involve hazardous materials. Hazardous materials include chemicals that are explosive, flammable, combustible, oxidizers, organic peroxides, water or air reactive, toxic, corrosive, radioactive, or are otherwise harmful to people or the environment.
• In the event of exposure to hazardous materials, contact 9-1-1 immediately. • The Wastewater Duty Person will imme diately notify the Fire Department through MV 3 Communications if any hazardous material, unknown substance, unlabeled container, large quantity of chemicals, and/or any other suspect items or circumstances are found. Be prepared to give all known information. • Immediately thereafter, contact the Wastewater Supervisor. • Once notified, the Fire Department w ill become the Incident Command and may give instructions to the Wastewater Se ction. The instructions may include traffic/perimeter control, blocking off drains, or removal of identified safe materials.
• The Wastewater Section will not be involved in hazardous material spill cleanup.
• Wastewater Section Personnel may transport identified household-type waste in closed containers back to the MOC as directed by the Fire Department. The waste must be labeled with name of wa ste, time, date, etc., and in a hazardous materials container/storage area for proper discharge.

Note: Sites of abandoned large quantities of hazardous materials should be treated as a crime scene. DO NOT TOUCH ANYTHING; PRESERVE EVIDENCE.

2. Biohazardous Materials SSOs/Spills
• On occasion, a spill response may involve biohazardous materials.

Biohazardous materials may include blood, body tissues and organs, vomit, urine, feces, other body fluids, syringes, needles, etc. • Immediately notify the Fire Department through MV 3 Communications if you find biohazardous material spills; unkn own biological substances; unlabeled containers; large quantities of syringes , needles, or red biohazard bags; and/or any other suspect items or circumstance. Call if there is ANY reasonable doubt.

Be prepared to give all known information. The Fire Department may become 3 of 3
the lead agency and may coordinate with the Santa Clara County Health Services Department as the situation warrants.
• Do not perform any cleanup activities you have not been trained to do.

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Sample Warning Sign

WARNING
Raw Sewage Spill
Do Not Enter Area

CITY OF MOUNTAIN VIEW

PUBLIC SERVICES DIVISION
650-903-6329
1 of 1
Emergency Contractor Call-Out List
(To be used only when directed by the Wastewater Supervisor/Utility Systems Manager) WEST VALLEY CONSTRUCTION COMPANY, INC., 7:00 a.m. to 4:00 p.m. (650) 364-9464 PRESTON PIPELINES, INC., 6:00 a.m. to 6:00 p.m.

Emergency Contact Listing
Preston—Main Office 133 Bothelo Avenue, Milpitas, California, 95035 (408) 262-1418 ABLE UNDERGROUND CONSTRUCTION, INC.

Regular Work Hours: 7:30 a.m. to 4:30 p.m. Call Office at (408) 377-9990 After Hours: All calls transfer to President’s cell phone.

DYSERT ENVIRONMENTAL (CONTRACT ANALYTICAL LAB)
Dysert Environmental, Inc. (Contract Lab and Field Services Company) ELAP No. 2764
Hours: 7:30 a.m. to 4:30 p.m. Monday through Friday
Office Number: 650-799-9204
Office Fax: 650-827-4968
1202 South Amphlett Boulevard, Suite 2, San Mateo, CA 94402 ALPHA-ANALYTICAL Bay Area Satellite Laboratory
ELAP No. 2728
Regular Work Hours: 7:30 a.m. to 4:30 p.m.

Office Number: 925-828-6226
Office Fax: 925-828-6309
6398 Dougherty Road, Suite 35, Dublin, CA 94568
1 of 3
Sewer Backup Claims Procedures
The following procedures will be observed for all sewer backup cl aims:
• It is the responsibility of the City of Mo untain View staff to gather information regarding the incident. Upon notification of a filed claim, all information will be forwarded to the City Attorney’s Office.
• In the event of personal injury or prop erty damage in which the owner/occupant feels the City is responsible, an informational card on how to file a claim against the City will be provided. A sample form is attached.
• The claim form must be completed in its entirety and submitted in a timely manner. • The claim form must be returned to the Ci ty Clerk’s Office located on the third floor of City Hall at 500 Castro Street in Mountain View.
• Once the City receives a completed claim form, the City has 45 days to investigate the claim. Following this 45-day period, the City will accept or deny the claim. If the City fails to respond to the claim, St ate law states the claim has been deemed denied.
• Any and all questions concerning a claim or the claims process should be directed to the City Attorney’s Office at (650) 903-6303.

Some suggested guidelines for customer relations can be found in this Appendix. 2 of 3
Sewer Backup Claim Information Form (How to file a claim)

3 of 3

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1 of 1
Customer Relations Guidelines
It is important for employees to communicate effectively with Mountain View c ustomers,
especially in an SSO situation. How we co mmunicate—on the phone, in writing, or in person—is how we are perceived. Good commu nication with the homeowner results in greater confidence in staff’s ability to address the problem satisfactorily and potentially reduces the time needed to resolve the claim.

As a representative of the City, staff will occasionally have to deal with an irate homeowner. A sewer backup is a stressful event and even a reasonable homeowner can become irate should he/she perceive staff as being indifferent, uncaring, unresponsive, or incompetent.

Although sometimes difficult, effective management of a sewage back-up situation is critical. If it is not managed well, the situation can end up in a costly, prolonged process with the homeowner. The City wants the homeowner to feel assured that we are responsive, and the homeowner’s best interest is a top priority.

A Few Communication Tips
• Give the homeowner ample time to explain the situation or to vent. Show interest in what the homeowner has to say, no matter how many times you have heard it before or how well you understand the situation.
• As soon as possible, let the homeowner know you will determine the cause of the sewer backup and correct it if possible.
• Acknowledge the homeowner’s concerns. For example, if the homeowner seems angry or worried about property damage, explain that a PROFESSIONAL CLEANUP CREW can restore the area and, if it is determined that the City of Mountain View is at fault, the owner/occu pant has a right to file a claim for any reasonable repairs or losses resulting from the incident. • Express regret for any inconveniences caused by the incident, but do not admit fault. • As much as possible, keep the homeowner informed on what is being done and will be done to correct the problem.
• Keep focused on the incident. Do not ge t involved with too much unnecessary small talk with the homeowner.
• Do not find fault or lay blame on anyone.
• Before you leave, make sure the home owner has the name and telephone number of the Wastewater Supervisor at the City of Mountain View to call if he/she requires more detailed information.
• The Wastewater Supervisor will follow up with a telephone call to ensure everything is being handled as it should be.

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SSMP Monitoring Plan.Docx 1 6/3/25
SSO Monitoring Plan
Purpose
This monitoring plan is to be used to guide the collection of surface water samples collected in the event of a sanitary sewer spill (SSS), in accordance with the 2022 Statewide General Waste Discharge Requirements General Order No. 2022-0103-DWQ (General Order). The General Order requires water quality sampling within 48 hours after initial SSO notification for Category 1 SSOs in which 50,000 gallons or more are spilled to surface waters. For smaller spills, sampling may be conducted at the City’s option or at the direction of the Santa Clara County Department of Environmental. Guidance for when samples should be collected for smaller spills is provided in Element 6.D of the SSMP.

Protocols for Sampling and Analysis
General
The purpose of sampling is to aid in assessing the impact of an SSS on surface waters. The general approach is to collect samples at locations represent of conditions upstream, at the discharge point, and downstream. For large spills or in quickly moving water, samples should be collected at additional downstream locations. As a general rule, the upstream and downstream locations should be 100-feet from the point where the spill enters surface water, however, conditions at the site may dictate other distances. In tidally influenced channels, reverse flows may occur during an incoming tide, making identification of upstream and downstream directions more difficult. In such cases, a field conductivity meter may be useful to distinguish tidal (high salinity/conductivity) and freshwater (low salinity/conductivity) flows.

For large spills, multiple sampling events will typically be needed to demonstrate that impact of the spill has attenuated over time. The County may require ongoing sampling until the results indicate a return to “background” concentrations of bacterial indicators.

Sampling will normally be conducted by one of the contract sampling services listed below. City Environmental Safety Section staff may be available to assist, but do not routinely maintain the necessary sample containers, preservatives, etc.

Sample Parameters
Bacterial Indicator: Sampling for a bacterial indicator is required for SSOs where >50,000 gallons reach surface water. The preferred bacterial indicators are E. coli (for fresh water) and enterococcus (for salt water or estuarine samples). The County Department of Environmental Health may require that samples be tested for other indicators (e.g. fecal coliform).

Ammonia: Sampling for ammonia is required for SSSs where >50,000 gallons reach surface water. Ammonia samples must be preserved with an acid.

SSMP Monitoring Plan.Docx 2 6/3/25
Other: Field measurement of dissolved oxygen may be useful to delineate the extent and/ or impact of an SSS. Field conductivity can be used to determine whether the locations is freshwater or estuarine.

Sampling Equipment
Sampling equipment typically includes the following sample containers and other items:

Pollutant Sample Containers Comment
Bacterial Indicator(s)
100 ml sterilized snap top plastic
bottles with thiosulfate pellet
preservative
Required for SSSs where >50,000
gallons reach surface water..

Ammonia 500 or 1000 ml plastic with
sulfuric acid preservative
Required for SSSs where >50,000
gallons reach surface water
Dissolved Oxygen 300 ml glass BOD bottle with
stopper
Not required, but potentially useful to
delineate SSS extent and impact
Other sampling equipment includes:
 Ice box and ice packs
 Sampling pole, extendable (dipper or sample bottle can be attached to end),  Gloves, safety glasses, sample bottle labels
 Laboratory chain-of-custody forms
Sample Collection
Refer to the attached “Water Quality Samples for SSSs” for specifics related to sample collection.

Accounting for Spill Travel Time
In cases where surface water monitoring is required, estimate the rate of flow of the water body (if applicable) and document how the estimate was made. This should be done even if conditions do not permit actual sampling.

The simplest method to estimate flow rate is to observe the distance an object present in the water (or placed in the water) moves in a given period of time. For example, if an object moves 25 feet in 10 seconds, the flow rate is 25/10 = 2.5 ft/second. For best accuracy, measurement over a larger distance and longer time are preferred (e.g. 100 ft is preferable to 10 feet). For time, use a stopwatch rather than counting (most cell phones are equipped with a stopwatch).

An object that is mostly submerged works best, as it will be less affected by wind and surface currents. An orange or brightly colored rubber ball (with dense sponge interior) works well for this purpose. Make sure to note if the surface water is tidally influenced, and if so, indicate whether the tide is incoming or outgoing at the time of sampling. 3 6/3/25
Information regarding spill travel time should be used to inform decisions about sampling locations, both initial and follow-up. If water is moving quickly, the distance to downstream sample locations should be increased. A stream moving at 1 ft/second will travel 3600 feet (approximately ¾ of a mile) in one hour. A spill into rapidly moving water would be expected to dissipate quickly, whereas impacts of a spill into a marshland may persist for a long period. For water bodies that are tidally influenced, the impact of the spill may extend in both the upstream and downstream directions.

Sample Transport and Chain-of-Custody
Samples should be placed in the cooler with frozen blue ice (or other means to keep samples at <10 °C) and keep in a location out of the sun. Transport samples as soon as possible to the laboratory. Prepare a chain-of-custody form using the contract lab’s standard form. Analysis for bacterial indicator samples should begin within 8 hours of sample collection wherever possible.

Hold time for preserved ammonia samples is less critical (28 days maximum).

Analytical Methods
The following analytical methods can be used:
 Enterococcus: (SM 9230B, C) or IDEXX Enterolert
® (SM9230D)
 Total Coliforms /E. coli: IDEXX Colilert® - alternative bacterial indicator for SSOs (SM 9223B Enzyme Substrate)
 Total Coliforms: Multiple Tube Fermentation - alternative bacterial indicator for SSOs (SM 9221)
 Ammonia: Ammonia selective electrode with distillation (SM 4500-NH3-D)  Ammonia (field test ): Hach test strips
 Dissolved Oxygen: Luminescent dissolved oxygen probe (EPA 10360), membrane electrode (SM 4500-O G)
 Salinity: Electrical conductivity (SM2520 B)
Use of Accredited Laboratory
Samples for ammonia and bacterial indicators must be performed by accredited or certified laboratory.

Palo Alto Regional Water
Quality Control Plant
2501 Embarcadero Way,
Palo Alto, CA 94303
(650) 329-2598
Dysert Environmental, Inc.
(Contract Lab and Field
Services Company)
1202 South Amphlett
Boulevard, Suite 2,
San Mateo, CA 94402
650-799-9204
Alpha-Analytical
6398 Dougherty Road,
Suite 35, Dublin, CA 94568
925-828-6226
Attachment: Water Quality Samples for SSSs
(650) 329-2598
SSMP Monitoring Plan.Docx
SSMP Monitoring Plan.Docx 4 6/3/25
WATER QUALITY SAMPLES FOR SSSs
Initials
______ Obtain, at a minimum, a sample at the discharge point, 100’ upstream and 100’ downstream. If the discharge is more than 1,000 gallons, select additional sites.

Document sample locations using sewer (or storm drain) system maps and/or GPS coordinates
______ Keep the sterile collection bo ttle (bacterial samples) closed until it’s to be filled.

Do not contaminate inner surface of the lid or bottle rim. ______ Collect samples just below the surface in knee depth water - do not rinse the bottle out with sample
______ Hold sampling bottle at its base, plunge it, neck downward, toward the current (being careful not to lose preservative). Turn bottle until neck turns slightly upward and mouth is directed toward the current. Fill bottle leaving about 1” of air. Collect a minimum of 100 mls (1 cup).
______ immediately place cap on bottle to avoid leaks and contamination. Dry the bottle ______ Repeat sample collection process for amm onia sample (500 ml plastic bottles). Be careful not to spill the acid preservative.
______ Label containers with distinctive sample site, name, date and time collected.

Make sure locations are clearly indicated.
______ Place sample bottle in a cooler with frozen blue ice. If blue ice is unavailable use double bagged regular ice, or return samples immediately to contract laboratory. ______ Bring bacterial samples to a State certif ied lab within 6 hours of collection.

Complete the laboratory’s chain-of-custody form with the required information.

APPENDIX E

DOCUMENTS RELATED TO

SEWER PIPE BLOCKAGE CONTROL PROGRAM

1. FOG Hotspot Areas

2. FOG Disposal Sites
1 of 1
Location Potential FOG
Sources Comments
Ehrhorn Avenue between El Camino
Real and Church Street 1 restaurant Low flow line
San Antonio Road between El Camino
Real and Fayette Drive 2 restaurants 6-month cleaning schedule Solace Place at intersection with South
Drive
1 residential care
facility with
cafeteria
Low flow line
6-month cleaning schedule
Wild Cherry Lane between Villa Street
and West Evelyn Avenue
7 restaurants
4 future restaurants
Limited space for grease
interceptors
3-month cleaning schedule
Castro Street between El Camino Real
and Evelyn Avenue
Limited space for grease
interceptors
6-month cleaning schedule
California Street between Castro Street
and Shoreline Boulevard 3 restaurants
Limited space for grease
interceptors
6-month cleaning schedule
900 Block of El Camino Real 2 restaurants 6-month cleaning schedule 600 Block of El Camino Real 2 restaurants 6-month cleaning schedule Remainder of El Camino Real 12-month cleaning schedule
El Monte Avenue between Marich
Way and El Camino Real 4 restaurants
Independence Avenue at intersection
with Old Middlefield Way 4 restaurants 12-month cleaning schedule North Rengstorff Avenue at
intersection with Charleston Road 1 restaurant 12-month cleaning schedule Identified FOG Hot Spot Areas
The following locations accept grease from liquid waste haulers in the Mountain View area.

Business
Name
Location /
Address
Phone
Number
Services
Sirona Fuels dba
Blue Sky Bio-Fuel
Inc.

Oakland (510) 868-9229 Primarily yellow grease, some brown grease. Can accept 7,000 gallons per day.

East Bay
Municipal Utility
District
Oakland (510) 287-1651 Accepts grease.

Palo Alto
Wastewater
Treatment Plant
Palo Alto (650) 329-2598
Accepts FOG as part of it Hauled Liquid
Waste Discharge Permit System. Special
requirements apply. For information see
http://cleanbay.org/files/2016-10/hauled-
liquid-waste-discharge-permit-fy-17.pdf
Salinas Tallow Salinas (831) 422-6436
Will consider accepting grease from other
reputable haulers. They purchase yellow
grease and process the interceptor grease
with residue going to landfill.

San Jose Tallow
Company San Jose (408) 452-8777
Does not accept interceptor grease but
would consider accepting from outside
haulers if it would not impact any of their
grease hauling routes.

Silicon Valley
Clean Water
Treatment Plant
Redwood
City (650) 591-7121 Accepts grease.

FOG Disposal Sites

APPENDIX F

DOCUMENTS RELATED TO

CAPITAL IMPROVEMENTS PROGRAM

1. Recent CIP projects for Collection System
Project No. Project Name Completed Projects Budgeted (Design/ Construction)
13-22 Annual Sewer Main Replacements X
14-22 Annual Sewer Main Replacements X
14-30 Central Sewage Trunk Main - Inspection and Cleaning X 14-31 West Sewage Trunk Main - Inspection and Cleaning X 14-32 Sewage Pump Station Replacement Analysis X
14-33 Interceptor Force Trunk Main - Manhole Construction, Inspection, & Cleaning X 15-22 Annual Sewer Main Replacements X
16-05 Wastewater System Improvements X
16-52 MOC Dewatering Pad X
16-22 Annual Sewer Main Replacements X
16-22 (19-41) Leong Drive Sewer Main Replacements X
16-61 Water and Sewer Main Replacement at U.S. 101, Design X 16-58 Shoreline Boulevard Interim Bus Lane & Utility Improvements, Design X 17-05 Wastewater System Improvements X
17-22 Annual Sewer Main Replacements X
17-48 Immediate Repairs to Sewage Pump Station X
17-50 San Antonio Sewer Improvements Design X
18-05 Wastewater System Improvements X
18-55 San Ramon and San Marcos Inflow and Infiltration Study X 18-22 Annual Sewer Main Replacements X
18-43 Shoreline Boulevard Interim Bus Lane & Utility Improvements, Construction X 19-05 Wastewater System Improvements X
19-22 Annual Sewer Main Replacements X
19-45 San Antonio Area Sewer Main Improvements X
20-05 Wastewater System Improvements X
20-41 Water and Sewer Main Replacement at U.S. 101, Construction X 20-42 Interceptor Force Trunk Main Rehabilitation X
20-43 Water and Sewer Master Plan Update X
21-05 Wastewater System Improvements X
21-22 Miramonte Sewer Improvements X
22-07 Wastewater System Improvements X
22-40 Trash Capture, Phase II X
22-42 Middlefield and Moffett Sewer Replacement X
23-07 Wastewater System Improvements X
23-09 Annual Sewer Main Replacements X
24-07 Wastewater System Improvements X
24-39 East Sewage Trunk Main, Inspection & Cleaning X
25-09 Annual Sewer Main Replacements X
25-07 Wastewater System Improvements X
City of Palo Alto Joint Interceptor Sewer Project - CMV Fixed Cost Share X City of Mountain View CIP projects for Collection System

APPENDIX G

DOCUMENTS RELATED TO

MONITORING, MEASUREMENT, AND PROGRAM MODIFICATIONS
(SSO STATISTICS AND PERFORMANCE DATA)

1. SSS Cause by Calendar Year (Table and Chart)

2. SSS Volumes by Calendar Yea

3. Gravity Sewer, Pump Station, and Force Main SSSs by Calendar Year

4. O&M Performance Data
1 of 3
SSS Statistics and O&M Performance Data
SSS Volumes by Calendar Year

2 of 3
SSS Cause by Calendar Year

3 of 3
Gravity Sewer, Pump Station, and Force Main SSSs by Calendar Year O&M Performance Data

APPENDIX H

SSMP AUDITS

1. 2024 Audit
2024 SSMP Audit Page 1
Sewer System Management Plan
2024 Audit Report
Adapted from format developed by BACWA

Name of agency City of Mountain View
WDID # 2SS010111
Date of audit June 29, 2024
Name of auditor(s) Mike Vasquez (Utilities Services Manager)

System Overview
LF of public gravity sewer mains 829,000 (157.0 miles) LF of public force mains ~100 (0.019 miles)
Total LF of all public sewer lines 829,100 (160 miles)
Number of pump stations 2
LF of private sewer mains, excl. laterals 23,682 LF (4.49 miles) ** LF of private sewer laterals Est. 608,000 (based on 35 ft/connection) Population served 83,601 (CA Dept. of Finance)
Number of service lateral connections 17,373
Current average monthly single family
residential sewer rate
$54.60 per dwelling unit per month

This audit includes information regarding the status of the City’s SSMP and its implementation for calendar years 2021-2023. Complete details of SSSs that occurred in this audit period are provided in Attachment A of this audit. Annual SSS statistics for the audit period are summarized in Figure 1.

The order of headings below is based on SSMP requirements as stated in Statewide Order 2022- 0103-DWQ.

2024 SSMP Audit Page 2

The Plan must include a narrative Introduction section that discusses the following items:

1.1 Regulatory Context

1.2 Sewer System Management Plan Update Schedule

1.3 Sewer System Asset Overview

Audit findings: While the SSMP meets the general requirements as described above, the overall document was written for the previous WDR and edited to meet current requirements. The next SSMP update will restructure the document to better align with the current WDR. In terms of update schedules, the SSMP will be due for an update by 8/2/2025 (see SSMP update table below). The sewer system asset overview is generally correct but will be updated to the latest footages available in the Wastewater GIS layer.

Performance Review: Not applicable to this section.

Action Items: Complete required SSMP update for approval by City Council.

2. ORGANIZATION
The Plan must identify organizational staffing responsible and integral for implementing the local Sewer System Management Plan through an organization chart or similar narrative documentation that includes:
- Name of LRO’s
- Contact information for staff implementing section of the SSMP - Organizational lines of authority
- Spill reporting responsibilities

Audit findings: The positions and their roles listed in the SSMP are correct and current. Specific contacts in the CIWQS database are also current with the exception of retirees that need to be removed.

Performance Review: The City does a good job of keeping contacts up to date within CIWQS.

Attempts to remove retirees were unsuccessful.

Action Items: Remove retirees from CIWQS database.

2024 SSMP Audit Page 3

3. Legal Authority
The Plan must include copies or an electronic link to the Enrollee’s current sewer system use ordinances, service agreements and/or other legally binding procedures to demonstrate the Enrollee possesses the necessary legal authority to:
- Prevent illicit discharges into its sanitary sewer system from inflow and infiltration (I&I); unauthorized stormwater; chemical dumping; unauthorized debris; roots; fats, oils, and grease; and trash, including rags and other debris that may cause blockages;
- Collaborate with storm sewer agencies to coordinate emergency spill responses, ensure access to storm sewer systems during spill events, and prevent unintentional cross connections of sanitary sewer infrastructure to storm sewer infrastructure; - Require that sewer system components and connections be properly designed and constructed;
- Ensure access for maintenance, inspection, and/or repairs for portions of the service lateral owned and/or operated by the Enrollee;
- Enforce any violation of its sewer ordinances, service agreements, or other legally binding procedures; and
- Obtain easement accessibility agreements for locations requiring sewer system operations and maintenance, as applicable.

Audit findings: The SSMP outlines the City’s legal authority through specific City Code references, but does not include active hyperlinks.

Performance Review: Over the audit period, the City had no issues with its legal authority as it relates to the requirements noted above.

Action items: Add hyperlinks to City Code references.

4. OPERATION AND MAINTENANCE PROGRAM
The Plan must include the items listed below that are appropriate and applicable to the Enrollee’s system.

4.1 Updated Map of Sanitary Sewer System

4.2 Preventive Operation and Maintenance Activities

4.3 Training

4.4 Equipment Inventory

Audit findings: While old, the provided sewer map is generally accurate with discrepancies typically being minor accuracy corrections. Due to the constant updating and dynamic nature of GIS based utility mapping, any snapshot map will soon become out of date. The maintenance section needs revision to reflect the new CCTV structure. The updated CCTV program split the sewer system into 8 equal zones that are rotated through each year.

Performance Review: This new CCTV program has put the City back on pace to CCTV the entire system every 8 years. In addition, CCTV findings are now loaded into GIS to help with operations and CIP planning. Sewer main flushing footages have varied from year to year, but overall maintenance performance is very good and SSS have been minimal over the review period.

Action items: Update SSMP with current CCTV program information. 2024 SSMP Audit Page 4

Table 1. O&M Performance Data
Calendar Year Wastewater
Service Calls
Sewer Main
Stoppages
Sewer Main SSSs SS Main
Cleaning, ft
2005 876 38 21
2006 765 31 14
2007 754 18 10
2008 693 13 7
2009 776 7 3
2010 700 9 6 662,044
2011 547 3 0 801,529
2012 590 6 0 520,471
2013 655 4 3 902,064
2014 713 7 5 530,265
2015 629 9 6 715,591
2016 574 5 0 653,731
2017 612 8 6 549,834
2018 522 5 2 941,075
2019 510 7 4 1,044,842
2020 550 5 1 871,289
2021 565 9 5 882,451
2022 640 6 0 699,789
2023 641 6 0 968,551

5. DESIGN AND PERFORMANCE PROVISIONS
The Plan must include the following items as appropriate and applicable to the Enrollee’s system:

5.1 Updated Design Criteria and Construction Standards and Specifications

5.2 Procedures and Standards

Audit findings: The City’s sewer design criteria, standards and specifications are up to date, however the link included in the SSMP is not working.

Performance Review: Over the audit period, the City had no issues with its sewer system design as it relates to the requirements noted above.

Action items: Update the link to the City’s standards and specifications in the SSMP.

2024 SSMP Audit Page 5

6. SPILL EMERGENCY RESPONSE PLAN
The Plan must include an up to date Spill Emergency Response Plan to ensure prompt detection and response to spills to reduce spill volumes and collect information for prevention of future spills. The Spill Emergency Response Plan must include procedures to:
- Notify primary responders, appropriate local officials, and appropriate regulatory agencies of a spill in a timely manner;
- Notify other potentially affected entities (for example, health agencies, water suppliers, etc.) of spills that potentially affect public health or reach waters of the State;
- Comply with the notification, monitoring and reporting requirements of this General Order, State law and regulations, and applicable Regional Water Board Orders; - Ensure that appropriate staff and contractors implement the Spill Emergency Response Plan and are appropriately trained;
- Address emergency system operations, traffic control and other necessary response activities;
- Contain a spill and prevent/minimize discharge to waters of the State or any drainage conveyance system;
- Minimize and remediate public health impacts and adverse impacts on beneficial uses of waters of the State;
- Remove sewage from the drainage conveyance system;
- Clean the spill area and drainage conveyance system in a manner that does not inadvertently impact beneficial uses in the receiving waters; - Implement technologies, practices, equipment, and interagency coordination to expedite spill containment and recovery;
- Implement pre-planned coordination and collaboration with storm drain agencies and other utility agencies/departments prior, during, and after a spill event; - Conduct post-spill assessments of spill response activities; - Document and report spill events as required in this General Order; and - Annually, review and assess effectiveness of the Spill Emergency Response Plan, and update the Plan as needed.

Audit findings: The SERP was updated after the new WDR to align with regulatory changes.

While the SERP covers all criteria required in the WDR, the SERP is lengthy and repetitive.

Performance Review: Due to the limited number of spills during the reporting period, staff did not get to use the SERP much. However, when it was used all required information was effectively collected and spill responses were efficient. Staff feedback is that they felt the SERP was cumbersome and lengthy for a document that will ultimately be used in an emergency response situation.

Action items: Review the SERP to find opportunities to cut out redundant information and make the overall SERP shorter. Continue work to digitize the SERP workflow with the upcoming CMMS system.

2024 SSMP Audit Page 6

7. SEWER PIPE BLOCKAGE CONTROL PROGRAM
The Sewer System Management Plan must include procedures for the evaluation of the Enrollee’s service area to determine whether a sewer pipe blockage control program is needed to control fats, oils, grease, rags and debris. If the Enrollee determines that a program is not needed, the Enrollee shall provide justification in its Plan for why a program is not needed. The procedures must include, at minimum:
- An implementation plan and schedule for a public education and outreach program that promotes proper disposal of pipe-blocking substances; - A plan and schedule for the disposal of pipe-blocking substances generated within the sanitary sewer system service area. This may include a list of acceptable disposal facilities and/or additional facilities needed to adequately dispose of substances generated within a sanitary sewer system service area;
- The legal authority to prohibit discharges to the system and identify measures to prevent spills and blockages;
- Requirements to install grease removal devices (such as traps or interceptors), design standards for the removal devices, maintenance requirements, best management practices requirements, recordkeeping and reporting requirements; - Authority to inspect grease producing facilities, enforcement authorities, and whether the Enrollee has sufficient staff to inspect and enforce the fats, oils, and grease ordinance;
- An identification of sanitary sewer system sections subject to fats, oils, and grease blockages and establishment of a cleaning schedule for each section; and - Implementation of source control measures for all sources of fats, oils, and grease reaching the sanitary sewer system for each section identified above.

Audit findings: The SSMP adequately covers the City’s FOG program administered and enforced through the City’s Fire Department. However, information within the SSMP is outdated and in need of updating. Additionally, a formalized evaluation for rag and debris control needs to be better documented.

Performance Review: The City’s sewer blockage control program is a joint effort between Public Works Utilities and Construction, and the Fire Department’s Environmental Division. Working together these groups enforce City policies to prevent sewer blockages to the extent possible.

When issues do occur, these groups have direct lines of communication and are well trained on response procedures to not only correct the issue at hand, but also work with the responsible party to avoid repeat offences.

Action items: Update the information in the SSMP and review rag and debris control programs.

2024 SSMP Audit Page 7

8. SYSTEM EVALUATION, CAPACITY ASSURANCE AND CAPITAL IMPROVEMENTS The Plan must include procedures and activities for:
- Routine evaluation and assessment of system conditions; - Capacity assessment and design criteria;
- Prioritization of corrective actions; and
- A capital improvement plan.

8.1. System Evaluation and Condition Assessment

8.2. Capacity Assessment and Design Criteria

8.3. Prioritization of Corrective Action

8.4. Capital Improvement Plan

Audit findings: The SSMP is based off of a legacy sewer system evaluation. Updated information is available and needs to be included in the SSMP update.

Performance Review: The City completed a Sewer Master Plan update in 2021 that reanalyzed the system’s capacity to serve the City through 2050. A CIP plan was also created to address any system deficiencies. In addition, the City requires large developments to complete a utility impact study to determine if system improvements are required to provide adequate service to the development.

Action items: Update section 8 with information from the 2021 Sewer Master Plan.

9. MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS
The Plan must include an Adaptive Management section that addresses Plan implementation effectiveness and the steps for necessary Plan improvement, including:
- Maintaining relevant information, including audit findings, to establish and prioritize appropriate Plan activities;
- Monitoring the implementation and measuring the effectiveness of each Plan Element;
- Assessing the success of the preventive operation and maintenance activities; - Updating Plan procedures and activities, as appropriate, based on results of monitoring and performance evaluations; and
- Identifying and illustrating spill trends, including spill frequency, locations and estimated volumes.

Audit findings: The City monitors the performance metrics noted in section IX of the SSMP on a continuous basis, with year over year analysis performed and an annual basis.

Performance Review: The primary measure of the effectiveness of the SSMP is the number of spills in a given year. The City’s performance for this review period was exceptional, going two years with no spills from the City’s sewer system.

Action items: At this point, no modification to the monitoring element is required.

2024 SSMP Audit Page 8

A
udit findings: The SSMP includes audit provisions sufficient to meet the regulatory requirements. Overall system performance does not indicate a need to increase the complexity of the SSMP audit, although the audit template is likely due for review.

Performance Review: SSMP audits, while performed, were historically late due to unclear understanding of audit due dates. The new SSMP due date tool has corrected that issue and clear timelines for SSMO updates and audits are now in place.

Action items: Review the SSMP audit template for opportunities for improvement.

11. CO

MMUNICATION PROGRAM
The Plan must include procedures for the Enrollee to communicate with:
- The public for:
o Spills and discharges resulting in closures of public areas, or that enter a source of drinking water, and
o The development, implementation, and update of its Plan, including opportunities for public input to Plan implementation and updates. - Owners/operators of systems that connect into the Enrollee’s system, including satellite systems, for:
o System operation, maintenance, and capital improvement-related activities.

A
udit findings: The SSMP covers the required elements of communication in regards to sewer performance, public health and SSMP updates. However, additional tools and procedures related to new or refined public outreach avenues are not covered. This includes social media, email lists and updated website information.

Performance Review: Over the review period, the primary outreach need was performance related where the City uses CIWQS and OES as the avenue to disseminate information to interested parties. With the upcoming SSMP update, the City will go through the City Council meeting outreach protocols to ensure interested parties get the information they need.

Action items: Update the SSMP section to include information about all outreach tools available to the City. Utilize the appropriate outreach for the SSMP update.

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System Performance Analysis Graphs (WDID = 2SSO10111)
The following System Performance Analysis Graphs represent the enrolled system's Category 1, 2, and 3 total spill volume and total number of spills on a running 10-year basis. The Enrollee shall include these graphs in its Annual Report per section 5.11 of the General Order.

Click to Print This Page (Select Printer as Adobe PDF and Orientation as Landscape)

APPENDIX A

APPENDIX I

DOCUMENTS RELATED TO SSMP CERTIFICATION

1. SSMP Implementation schedule, October 23, 2007

2. SSMP certification, August 19, 2008

3. SSMP recertification, June 11, 2013

4. SSMP recertification , June 26, 2018

5. SSMP
recertification, June 24, 2025
(to
be added after Council approval)
AGENDA: August 19, 2008

4. 15
CATEGORY: Consent
DEPT.: Public Works
CITY OF MOUNTAIN VIEW TITLE: Sanitary Sewer Management Plan Approval

RECOMMENDATION
Approve the City of Mountain View Sanitary Sewer Management Plan as required by the State Water Resources Control Board.

FISCAL IMPACT- None.

BACKGROUND AND ANALYSIS
The Public Works Department maintains and operates the City' s sanitary sewer system and maintains records of sewer overflows and is required to report any overflow of the public sanitary sewer to the State Water Resources Control Board ( SWRCB).

The SWRCB adopted new State- wide sanitary sewer overflow ( SSO) requirements on May 2, 2006 to ensure system operators manage wastewater collection systems effectively and minimize the number of overflows. As part of these requirements, the City must also develop a Sanitary Sewer Management Plan ( SSMP) that describes how the City:

Maintains and improves the condition of the collection system to provide reliable long- term service;
Minimizes infiltration/ inflow to the sewer system and provides adequatecapacity to accommodate sewer flows; and
Minimizes the number and impact of sanitary sewer overflows.

In addition to describing how the City operates the sewer system, the SSMP also outlines the City' s standard procedures for responding to spills and overflows to protect public health and to prevent spills from reoccurring. The SSMP is comprised of the following 11 elements:

Goals
Organization/ ResponsibleParty
EmergencyResponsePlan
AGENDA:

PAGE:

August 19, 2008
2 Legal Authority ( to administer SSMP)
Operations and Maintenance Plan
Fats, Oils and Grease Control Plan
Design and Performance Standards
SystemCapacity Plan
Monitoring and Program Modifications
Program Audits
Communication Program
A complete copy of the SSMP is available on the City' s web site.

The SSMP adoption schedule was approved by the City Council on October 23, 2007. In the San Francisco Bay region, plans must be adopted and submitted to the State by August 31, 2008.

Per the SSMP requirements, staff will also submit to the City Council an annual report, summarizing all SSOs during the year, identifying trends or problem areas within the collection system and describing the status of efforts to address such problems. The annual report is due to the City Council by March 15.

AGENDA: October 23, 2007
Attachment 1

4. 6
CATEGORY: Consent
DEPT.: Public Works

CITY OF MOUNTAIN VIEW
TITLE: Sanitary Sewer Management Plan
Schedule Approval

RECOMMENDATION
Approve the City of Mountain View' s Sanitary Sewer Management Plan schedule as required by the State Water Resources Control Board.

FISCAL IMPACT- None.

BACKGROUND AND ANALYSIS
The Public Works Department maintains and operates the City' s sanitary sewer system and maintains records of sewer overflows. The City is required to report any overflow of the public sanitary sewer to the State Water Resources Control Board ( SWRCB).

The SWRCB adopted new State- wide sanitary sewer overflow requirements on May 2, 2006 to ensure the system operators manage the wastewater collection effectively and minimize the number of overflows. The new requirements include 11 elements that are combined to form the Sanitary Sewer Management Plan ( SSMP). The State- mandated goals of the SSMP are to describe how the City:

1. Maintains or improves the condition of the collection system to provide reliable long- term service.

2. Minimizes infiltration/ inflow to the sewer system and provides adequatecapacity to accommodate sewer flows.

3. Minimizes the number and impact of sanitary sewer overflows.

These objectiveswill become the core goalsof the plan developed by the City, and the Utilities Services Manager will be designatedas the responsibleparty to assure appropriate preparation and implementation of the plan.

AGENDA: October 23, 2007
PAGE: 2
The following table shows the 11 elements with the required completion dates:

Required Schedule for SSMP Implementation
SSMP Element Required Completion Date
Goals
Organizationj ResponsibleParty
November 2, 2007
EmergencyResponsePlan
Legal Authority
Operations and Maintenance ( 0 & M) Plan May 02, 2009
Fats, Oils and Grease ( FOG) Control Plan
Design and Performance Standards
SystemCapacity Plan
Monitoring and Program Modifications August 2, 2009
Program Audits
Communications Program
The SWRCB requires the City to approve the SSMP development schedule by November 2, 2007 and approve the entire SSMP by August 2, 2009.

Staff is working with Larson Consulting to complete the SSMP and will return to the City Council for final SSMP approval before August 2009.

PUBLIC NOTICING - Agenda posting.

Preparedby:
p-David Serge
Utilities Services Manager
ted~AdC;reg~ liosfeIdt~
Assistant Public Works Director
Kevin C. Duggan
City Manager
DSjLGj 8j CAMj945- 10- 23- 07M- E^
AGENDA: October 23, 2007

4. 6
CATEGORY: Consent
DEPT.: Public Works
CITY OF MOUNTAIN VIEW TITLE: Sanitary Sewer Management Plan Schedule Approval

RECOMMENDATION
Approve the City of Mountain View' s Sanitary Sewer Management Plan schedule as required by the State Water Resources Control Board.

FISCAL IMPACT None.

1. Maintains or improves the condition of the collection system to provide reliable long- term service.

2. Minimizes infiltration/ inflow to the sewer system and provides adequatecapacity to accommodate sewer flows.

3. Minimizes the number and impact of sanitary sewer overflows.

These objectiveswill become the core goals of the plan developed by the City, and the Utilities Services Manager will be designatedas the responsibleparty to assure appropriate preparation and implementation of the plan.

AGENDA:

PAGE:

October 23, 2007
2 The following table shows the 11 elements with the required completion dates:

Required Schedule for SSMP Implementation
SSMP Element Required Completion Date
Goals
Organization/ ResponsibleParty
November 2, 2007
Emergency ResponsePlan
Legal Authority
Operations and Maintenance ( 0 & M) Plan May 02, 2009
Fats, Oils and Grease ( FOG) Control Plan
Design and Performance Standards
System Capacity Plan
Monitoring and Program Modifications August 2, 2009
Program Audits
Communications Program
The SWRCB requires the City to approve the SSMP development schedule by November 2, 2007 and approve the entire SSMP by August 2, 2009.

Staff is working with Larson Consulting to complete the SSMP and will return to the City Council for final SSMP approval before August 2009.

PUBLIC NOTICING- Agenda posting.

Prepared by:

David Serge
Utilities Services Manager
Approved b" ~
Cathy R. Lazarus
Public Works Director
Reviewed by:
d1JiH~ e!~
Assistant Public Works Director
Kevin C. Duggan
City Manager
DS / LG/ 8/ CAM/ 945- 1 0- 23- 07M- E ^
AGENDA: October 23, 2007

4. 6
CATEGORY: Consent
DEPT.: Public Works
CITY OF MOUNTAIN VIEW TITLE: Sanitary Sewer Management Plan Schedule Approval

RECOMMENDATION
Approve the City of Mountain View' s Sanitary Sewer Management Plan schedule as required by the State Water Resources Control Board.

FISCAL IMPACT None.

1. Maintains or improves the condition of the collection system to provide reliable long- term service.

2. Minimizes infiltration/ inflow to the sewer system and provides adequatecapacity to accommodate sewer flows.

3. Minimizes the number and impact of sanitary sewer overflows.

These objectiveswill become the core goals of the plan developed by the City, and the Utilities Services Manager will be designatedas the responsibleparty to assure appropriate preparation and implementation of the plan.

AGENDA:

PAGE:

October 23, 2007
2 The following table shows the 11 elements with the required completion dates:

Staff is working with Larson Consulting to complete the SSMP and will return to the City Council for final SSMP approval before August 2009.

PUBLIC NOTICING- Agenda posting.

Prepared by:

APPENDIX H

SSMP CHANGE LOG

1. SSMP Change Log

Mountain View City CouncilJune 24, 2025

Mountain View City Council
June 24, 2025