Sewer System Management Plan
City of Santa Ana
Water Resources Division
5/2/2025
Prepared Under the Supervision of:
Cesar E. Barrera, P.E.
Deputy Public Works Director/Water Resources Manager
EXHIBIT 1
Table of Contents
SSMP Update Log .............................................................................................................................. i Abbreviations / Acronyms ............................................................................................................... ii Definitions ....................................................................................................................................... iii Section 1: Sewer System Management Plan Goal and Introduction ...................................... 1-1 Section 2: Organization ....................................................................................................... 2-1 Section 3: Legal Authority ................................................................................................... 3-1 Section 4: Operation and Maintenance Program.................................................................. 4-1 Section 5: Design and Performance Provisions ..................................................................... 5-1 Section 6: Spill Emergency Response Plan ............................................................................ 6-1 Section 7: Sewer Pipe Blockage Control Program ................................................................. 7-1 Section 8: System Evaluation, Capacity Assurance and Capital Improvements ...................... 8-1 Section 9: Monitoring, Measurement and Program Modifications ....................................... 9-1 Section 10: Internal Audits ................................................................................................ 10-1 Section 11: Communication Program ................................................................................. 11-1 Appendices
Appendix A SWRCB Order No. 2022-0103-DWQ
Appendix B Organizational Chart, The City of Santa Ana, Public Works Agency Appendix C Spill Emergency Response Plan
Appendix D City of Santa Ana Municipal Code Chapter 39
Appendix E City of Santa Ana Ordinance NS 2921
Appendix F City of Santa Ana Standard Plans (for Sewer) Appendix G The City of Santa Ana Standard Specifications of Sewer Construction Appendix H Sewer Lateral Maintenance Flyer
Appendix I Sample Video Inspection Log and Inspection Report Appendix J City’s Sample Sewer Cleaning Report
Appendix K Sample of the City’s Sanitary Sewer System Atlas Maps Appendix L The City of Santa Ana FOG Control Program Manual Appendix M A Collection of Regulations and Logs Which Support the City’s FOG Control Program
i 2025
City of Santa Ana Table of Contents/Definitions/Abbreviations
Date SSMP
Element
Description of Change/Revision Made Change Authorized By:
5/2/2009 All Sections Original SSMP Principal Civil Engineer 5/2/2014 All Sections 5-year SSMP update Principal Civil Engineer 4/23/2020 All Sections 5-Year SSMP update Principal Civil Engineer 5/2/2025 All Sections Updated per 2022 WDR Requirements Principal Civil Engineer
ii 2025
City of Santa Ana Table of Contents/Definitions/Abbreviations
Abbreviations / Acronyms
BMP Best Management Practice
CCTV Closed Circuit Television
CEQA The California Environmental Quality Act
CIWQS California Integrated Water Quality System
CM Corrective Maintenance
CMMS Computerized Maintenance Management System
CIP Capital Improvement Program
CWEA California Water Environment Association
EML Enhanced Maintenance Location
FOG Fats, Oils, Grease
FSE Food Service Establishment
GIS Geographical Information System
I/I Inflow / Infiltration
LRO Legally Responsible Official
MRP Monitoring and Reporting Program
NASSCO National Association of Sewer Service Companies
NPDES National Pollution Discharge Elimination Program
OCHCA Orange County Health Care Agency
OC San Orange County Sanitation District
OES State Office of Emergency Services
O&M Operation and Maintenance
PM Preventative Maintenance
PVC Polyvinyl Chloride
RWQCB Regional Water Quality Control Board
SERP
SLRRP
Spill Emergency Response Plan
Sewer Lateral Replacement and Repair Program
SSIMS Sewer System Infrastructure Maintenance System
SSMP Sewer System Management Plan
Spill Sanitary Sewer Spill
SWRCB State Water Resources Control Board
WDR Waste Discharge Requirements
iii 2025
City of Santa Ana Table of Contents/Definitions/Abbreviations
Definitions
City The City of Santa Ana
Enrollee A federal or state agency, municipality, county, City, and other public entity that owns or operates a sanitary sewer system, as defined in the general WDRs, and that has submitted a complete and approved application for coverage under State Water Resource s Control Board Order No. 2022-0103-DWQ.
Nuisance California Water Code section 13050, subdivision (m), defines nuisances as anything which meets all of the following requirements:
a. 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
b. 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. c. Occurs during, or as a result of, the treatment or disposal of wastes.
Sanitary Sewer Spills Any overflow, spill, release. Discharge or diversion of untreated or partially treated wastewater from a sanitary sewer system.
Sanitary Sewer System Any system of pipes, pump stations, sewer lines, or other conveyances, upstream of a wastewater treatment plant headworks used to collect and convey wastewater to the publicly owned treatment facility.
Temporary storage and conveyance facilities (such as vaults, temporary piping, construction trenches, wet wells, impoundments, tanks, etc.) are considered to be part of the sanitary sewer system, and discharges into these temporary storage facilities are not considered to be SSOs.
Satellite collection system The portion, if any, of a sanitary sewer system owned or operated by a different public agency than the agency that owns and operates the wastewater treatment facility to which the sanitary sewer syste m is tributary.
Sewage
Spill Reporting System
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.
Online spill reporting system that is hosted, controlled, and maintained by the State Water Board. The web address for this site is http://ciwqs.waterboards.ca.gov. This online database is maintained on a secure site and is controlled by unique usernames and passwords.
Untreated or partially treated
wastewater
Any volume of waste discharged from the sanitary sewer system upstream of a wastewater treatment plant headworks.
Section 1: SSMP Goal and Introduction City of Santa Ana 1-1 2025
Section 1 of this SSMP addresses the requirements included in Attachment D -1 of the Order. The requirements state:
SSMP Goal and Introduction : The goal of the SSMP (Plan) is to provide a plan and schedule to 1) properly manage, operate, and maintain all parts of the 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 sectio n that discusses the following:
(a) A general description of the local sewer system management program and discuss Plan implementation and updates;
(b) A schedule for the Enrollee to update the Plan, including the schedule for conducting internal audits. The sched ule must include milestones for the incorporation of activities addressing the prevention of sewer spills; (c) A description of the Enrollee -owned assets and service area, including but not limited to: location, including county(ies), service area boundary, po pulation 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 system, data management systems, sewer system ownership and operation responsibilities between Enrollee and private entities for upper and lower sewer laterals, the estimated number or percent of residential, commercial, and industrial service connections, and unique service boundary conditions and challenge(s). (d) A reference to the Enrollee’s up -to-date map of its sanitary sewer system as required in Section 4.1 of the Order.
Section 1: SSMP Goal and Introduction
1.1 Goals
The City of Santa Ana recognizes the importance of protecting ocean water quality by preventing sewer spills and has supplemented its existing sewer system maintenance practices with the Waste Discharge Requirements (WDR).
The following specific goals have also been identified to serve as key performance indicators of the program.
The success of the SSMP program is evaluated based on the accomplishments of these goals:
• Conduct a system-wide closed-circuit television inspection (CCTV) of all manholes and gravity mains at least once every eight years;
• Inspect 100% of gravity grease interceptors annually;
• Meet the assigned cleaning frequencies for all gravity mains; and Section 1 : SSMP Goal and Introduction City of Santa Ana 2-1 2025
• Clean 100% of sewer lift stations annually.
a. Segerstrom Lift Station
b. Maxine Lift Station
1.2 Sewer System Management Plan Update Schedule
The SSMP must be updated every six (6) years, and m ust include any significant program changes. Re- certification by the Council of the City is require d when significant updates to the SSMP are made. To complete the re-certification process, the City shall enter the data in the Online SSO Database (CIWQS).
The City shall comply with these requirements according to the legislated schedule. This time schedule does not supersede existing requirements or time schedules associated with other permits or regulatory requirements.
SSMP Recertification Due
Date
1st SSMP
Audit Due
Date*
2nd SSMP
Audit Due
Date*
Next SSMP
Recertification
Date
5/2/2025 5/2/2027 5/2/2030 5/2/2030
1.3 Sewer System Asset Overview
The City’s Public Works Agency, Water Resources Div ision, is responsible for maintaining the citywide water and sewer system. The agency serves a population of over 310,000 people and is responsible for maintai ning 400 miles of sewer main, 9,000 sewer manholes, two sewage lift stations, and two force mains. The majo rity of the City’s sewer mains range from 6” - 12” in diameter, with several as large as 39” in diameter, the majority of which is proactively cleaned on an 18-month cycl e. Additionally, the City provides sewer lateral replacement, customer service, identifies illegal c onnections to the sewer system, and addresses sewer blockages. While City is not responsible for mainta ining the 46,000 private sewer laterals (Municipal Code Section 39-50.1.b), a sewer repair/replacement prog ram is in place where the City will perform correct ive repairs on or replace the lower lateral.
The City has established and implemented the necessary programs to maintain all aspects of their sewer system in good working order and to reduce the number and severity of sanitary sewer spills. The City monitor s the effectiveness of these programs throughout the year and makes the necessary modifications to correct a ny deficiencies. The City has established sufficient sewer designs, regularly evaluates the condition and capacity of its sewer system, and has implemented an effective FOG Control Program.
Additionally, the City has identified problematic s ewer mains that are cleaned on a more frequent basi s (enhanced maintenance locations). In addition to proactive and preventive maintenance practices, the City also identifies areas of the sewer system in need of rep air and/or replacement and prioritizes corrective measures for these based on asset risk and resource factors. The staff supporting the operation and maintenance of the sewer system undergoes training to perform such act ivities and continue development of their skills th rough participation in external and internal training opportunities.
City of Santa Ana Section 2: Organization
2-1 2025
Section 2 of this SSMP addresses the requirements included in Attachment D-2 of the Order. The requirements state:
Organization: The Plan must identify organizational staffing responsible and integral for implementing the local SSMP through an organizational chart or similar narrative documentation that includes:
(a) The name of the Legally Responsible Official (LRO) as required in Section 5.1 of the Order;
(b) The position titles, email addresses, and telephone numbers for management, administrative, and maintenance positions responsible for implementing specific SSMP elements;
(c) The SSMP must identify lines of authority through an organization chart or similar document with a narrative explanation; and
(d) The chain of communication for reporting spills, from receipt of a complaint or other information, including the person responsible for reporting spills to the State and Regional Water Board and other agencies if applicable (such as County Health Officer, County Environmental Health Agency, Regional Water Board, and/or State Office of Emergency Services (OES)).
Section 2: Organization
2.1 Legally Responsible Official
Per the 2022 WDR Order, all Enrollees must designate a Legally Responsible Official (LRO). As described in Section 5.1 of the WDR Order, all reports required by the Order and other submittals required by the State or Regional Water Board shall be signed an d certified by a person designated as either a principal or executive office or ranking elected official, or by a duly authorized representative of that person. An individual is a duly authorized representative only if (a) the authorization is made in writ ing by the person designated as either a principal or executive officer or ranking elected official; and (b) the authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity.
The Water Resources Division of the City of Santa Ana’s Public Works Agency is responsible for the operations of the City’s sewer collections system. The Water Resources Manager is also the Legally A uthorized Official (LRO), as described in Section 5 .1 of Order No. 2022 -0103-DWQ, for the City of Santa Ana. The Water Resources Manager is responsible for signing and certifying all reports required by the Order, as well as other submittals required by the State or Regional Water Board.
City of Santa Ana Section 2: Organization
2-1 2025
Water Resources Manager
(LRO)
Principal Civil
Engineer
CIP/Admin
Senior
Maintenance
Supervisor
System
Evaluation and
Capacity
Assurance Plan
Training
Overflow
Emergency
Response Plan
2.2 Summary of Organizational Structure
Figure 1, Sewer System Organization Chart
Monitoring,
Measurements
and Program
Modifications
Communication
Program
FOG Control
Program
Equipment
Inventory
Organizational
Structure
Legal Authority
Operation and
Maintenance
Program
Design and
Performance
Provisions
Principal Civil
Engineer
Operations/
Compliance
City of Santa Ana Section 2: Organizational
2-2 2025
Figure 1, Sewer System Organizational Chart , identifies the personnel responsible for implementing their respective SSMP elements. The organizational structure is spearheaded by the Water Resources Manager.
Beneath the Water Resources Manager are two Principal Civil Engineers and one Senior Water Maintenance Supervisor. The Capital Improvements and Administration division is lead by a Principal Civil Engineer who is responsible for maintaining the overall organizational structure of the City of Santa Ana’s sanitary sewer system (Section 2 of this SSMP) , implementing the System Evaluation, Capacity Assurance and Capital Improvements Plan (CIP) outlined in Section 8, design and performance provisions as defined in Section 5, and the City’s communication program with all affected parties and general public.
The Production Operations and Regulatory Compliance division is headed by a Principal Civil Engineer who is responsible for administering the City’s legal authority (see Section 3), executing the Spill Emergency Response Plan (see Section 6), implementing the Sewer Pipe Blockage Control Program (see Section 7), and SSMP monitoring, measurement and program modifications (see Section 9).
The Senior Water Maintenance Supervisor is responsible for implementing the C ity’s operation and maintenance program, staff training, and equipment inventory (see Section 4). See appendix B for a complete organizational chart with position titles, names, email addresses and phone numbers for all of the City’s Water Resources personnel.
2.2.1 Administration and Maintenance Staff Summary
The names and titles of all management, administrative, and maintenance staff within the Water Resources Division can be found on the Water Resources Division organization chart maintained by the Public Works Agency. The telephone numbers for all staff are kept in a centralized City directory accessible to all staff through an intranet application. A copy of the Water Resources Division organization chart is included as Appendix B.
The Water Resou rces Manager is responsible for overseeing the spill reporting process. The Water Maintenance Supervisor in charge of the Sewer Services Section, receives spill reports from the field crews and prepares a draft report. The draft is then reviewed by the Eng ineering & Administration Section and consideration is given to volume calculations, vacuum and wash down operations, cause of the spill, timeliness of response, etc. After discussions/reviews are complete, the report is finalized and submitted on - line to the California Integrated Water Quality System (CIWQS). Based on the monitoring and reporting requirement changes in Attachment E of the 2022 WDR , the spill emergency response procedures were updated in 2023 to represent the affected processes for responding to and reporting spills. The spill emergency response procedures are updated periodically to represent current policies and staffing of the City. The City continues its belief in keeping the reporting agen cies and the public fully informed. As a first priority during a sewer spill, City staff and field crews notify the appropriate agencies by phone that a spill has occurred instead of depending on the report as a means of notification.
2.3 Chain of Communication
A set of Sewage Spill Procedures has been created by the Water Resources Division and distributed to the maintenance staff that details the spill response procedure and identifies the appropriate agencies to contact (i.e., OES). These procedures have been included in this SSMP as Appendix C.
As shown in Appendix B, the City of Santa Ana maintains organizational charts which illustrate lines of authority and employee position titles. Additionally, the City provides sufficient staffing information to properly operate, maintain, and manage all parts of the City sanitary sewer system.
City of Santa Ana Section 2: Organizational
2-3 2025
Appendix C includes the City’s Sewage Spill Procedures which describes the chain of communication for reporting and responding to spills, as well as names and contact information for positions charged with implementing specific portions of the SSMP.
2.4 Supporting Documents
The following documents allow the City of Santa Ana to comply with the goals and organizational structure requirements of the WDR, and are attached as appendices.
• SWQCB Order No5. 2022-0103-DWQ, Appendix A.
• Organizational Chart, The City of Santa Ana, Public Works Agency, Appendix B.
• Sewage Spill Procedures, The City of Santa Ana, Appendix C.
Section 3: Legal Authority City of Santa Ana
3-2 2025
Section 3 of this SSMP addresses the requirements included in Attachment D -3 of the Order. The requirements state:
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:
(a) Prevent illicit discharges into its sanitary sewer system (examples may include infiltration/inflow (I/I), storm water, chemical dumping, unauthorized debris, cut roots, fats, oils and grease, etc.);
(b) 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;
(c) Require that sewers and connections be properly designed and constructed; (d) Ensure access for maintenance, inspection, or repairs for portions of the lateral owned or maintained by the Enrollee;
(e) Enforce any violation of its sewer ordinances, service agreements, or other legally binding procedures; and
(f) Obtain easement accessibility agreements for locations requiring sewer system operations and maintenance, as applicable.
Section 3: Legal Authority
The City is regulated by several agencies of the United States Government and the State of California, pursuant to the provisions of Federal and State Law. Key Federal and State requirements:
1) Federal Water Pollution Control Act, commonly known as the Clean Water Act (33 U.S.C. Section 1251 et seq);
2) California Porter Cologne Water Quality Act (California Water Code section 13000 et seq.); 3) California Health & Safety Code sections 25100 to 25250; 4) Resource Conservation and Recovery Act of 1976 (42 U.S.C. Section 6901 et seq.); and 5) California Government Code, Sections 54739-54740.
These laws provide the City the authority to regulate and/or prohibit, by the adoption of an ordinance, and by issuance of control mechanisms, the discharge of any waste, directly or indirectly, to the City sewerage facilities.
Said authority includes the right to establish limits, conditions, and prohibitions; to establish flow rates or prohibit flows discharged to the City sewerage facilities; to require the development of compliance schedules for the installation of equipment systems and materials by all users; and to take all actions necessary to enforce its authority, whether within or outside the City boundaries, including those users that are tributary to the City or within areas for which the City has contracted to provide sewerage services.
Section 3: Legal Authority City of Santa Ana
3-2 2025
Through a series of Ordinances and Resolutions adopted by the City Council and internally developed Plans and Requirements, the City possesses the necessary legal authority required by Section D-3 Legal Authority of Order No. 2022-0103_DWQ:
1) The City of Santa Ana has the power to install sewers and enact regulations related thereto, including the regulation of discharges from private property. Section 39-57 of the Municipal Code states:
“All City-owned sewer lines and private onsite sewer lines and laterals should be constructed and maintained to prevent water infiltration into the sewer syste m. Private on -site sewer lines and public sewer lines shall be used only to convey raw sewage. Rainfall runoff sources (including, but not limited to roof drains, site drains, inlets, uncovered wash area drains, etc.) are prohibited from connecting to any public or private sanitary sewer pipeline.”
The City of Santa Ana currently enforces Orange County Sanitation District (OC San) regulations prohibiting the discharge of rainfall to the sewer system. This is done through the City’s existing development approval process. No connections from any potential source of runoff are allowed to the City’s sanitary sewer system.
2) The City of Santa Ana has the legal authority to collaborate with storm sewer agencies to coordinate emergency spill responses, ensure acces s to storm sewer systems during spill events, and prevent unintentional cross connections of sanitary sewer infrastructure to storm sewer infrastructure.
3) The City prevents illicit discharges into its sanitary sewer system (including, but not limited to, infiltration and inflow (I/I), unauthorized stormwater, chemical dumping, and unauthorized debris) through the City Municipal Code, Chapter 39, Section 39 -57, Infiltration and inflow into sewer system, Section 39-58, Introduction of pollutants prohibited and Ordinance No. NS-2921.
4) The City of Santa Ana has standard plans and specifications for the construction of sanitary sewers, which ensure the sewer system components and connections are properly designed and constructed.
The Design Guidelines for Water and Sewer Facilities are available on the City’s website. Also, the City’s Specifications by reference incorporate the Standard Plans and Specifications for Public Works Construction (Green Book), which ensure the proper design and construction of sewer facilities.
5) The City of Santa Ana has a full time Construction Engineering section responsible for oversight of city construction projects. A staff of full-time engineers and inspectors are responsible for ensuring all city projects, including sanitary sewer improvements, are constructed in compliance with approved plans and specifications.
6) In November of 2001, the City of Santa Ana via Ordinance No. NS -2479 implemented a sewer lateral repair program. The City repairs and/or replaces the portion of damaged sewer laterals located within the public right -of-way. This work is accomplished by experienced in -house field maintenance personnel.
7) The City of Santa Ana recognizes the significant impacts to sewer collection system operation caused by fats, oils and grease (FOG) and trash, including rags and other debris that may cause blockages . In November of 2017, the City adopted a comprehensive FOG control ordinance (Ordinance No. NS 2921). This ordinance updated an already established legal authority requi rement to implement a comprehensive FOG control program. The ordinance is attached as Appendix E.
Section 3: Legal Authority City of Santa Ana
3-2 2025
8) Santa Ana sewer ordinances are currently enforced under Administrative Citation provisions of the municipal code. Public Works Agency Sanitation Inspectors h ave citation authority to enforce sewer ordinance provisions.
3.1 Supporting Documents
The following documents allow the City to comply with the Legal Authority requirements of the WDR Order, and are attached as appendices:
• The City of Santa Ana Municipal Code, Chapter 39, Appendix D
• Ordinance No. NS-2921, Appendix E
• The City of Santa Ana Standard Plans for Sanitary Sewers, Public Works Agency, Appendix F.
• The City of Santa Ana Standard Specifications of Sewer Construction, Public Works Agency, Appendix G.
Section 4: Operation and Maintenance Program City of Santa Ana 4-7 2025
Section 4: Operation and Maintenance Program
4.1 Updated Map of Sanitary Sewer System
The City utilizes a Geographic Information System (GIS) based mapping system to maintain and manage collection system maps and key system attribute data. The GIS mapping system, depicting the physical location of all sewer mains, manholes and lift stations, is deployed to collection system O&M staff using field tablets.
This mobile system provides up-to-date system maps as well as historic system information such as construction plans, asset age, known defects, and maintenance frequencies. Where mapping errors or omissions are identified by field crews, the system provides the ability to capture and relay the corrections to the City’s engineers for review and, where appropriate, revision to the GIS database. Figure 4-1, City of Santa Ana Sewer System Map, is a composite rendering of a sewer system map generated from the City’s GIS.
Section 4 of this SSMP addresses the requirements included in Attachment D-4 of the Order. The requirements state:
Operation and Maintenance Program: The Plan must include the items listed below that are appropriate and applicable to the Enrollee’s system:
(a) 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 all gravity line segments and manholes, pumping facilities, pressure pipes and valves, and applicable storm water conveyance facilities within the sewer system service area boundaries;
(b) Describe 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 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;
(c) 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 the Order, the Enrollee’s Spill Emergency Response Plan (SERP) and practice drills, skilled estimation of sill volumes for field operators, and electronic CIWQS reporting procedures for staff submitting data; and
(d) An inventory of sewer system equipment, including the identification of critical replacement and spare parts.
Section 4: Operation and Maintenance Program City of Santa Ana 4-8 2025
Figure 4-1, City of Santa Ana Sewer System Map
Section 4: Operation and Maintenance Program City of Santa Ana 4-9 2025
4.1.2 Storm Drain System
The locations of all the storm water conveyance facilities are available to field crews as a separate GIS layer which can be overlaid with collection system mapping layers to reveal important relationships between the two systems. While not responsible for the O&M of the storm drain system, City O&M staff is trained to understand the storm drainage network to supplement spill response actions.
4.2 Preventive Operation and Maintenance Activities
The City’s sewer collection system Operations and Maintenance Program consists of critical proactive, preventive and corrective measures for the City’s gravity sewer system and lift stations. The details of the City’s O&M Program are summarized below with further detail and specific procedu res set forth in the City’s Sewer System Operations and Maintenance Manual.
4.2.1 Gravity Mains
The City of Santa Ana cleans the majority of the sewer system on an 18-month cycle, and corresponding areas that are similar. However, the City does collect field observations and data during routine maintenance activities, which factor into maintenance frequencies. This utilization and analysis of field data allows the City to optimize maintenance activities th roughout the sewer system. This process can result in more sections of gravity pipelines being cleaned less frequently than the traditional 18-month cycle.
The City has identified areas of the collection system that require more frequent cleaning – known as enhanced maintenance locations (EMLs) – which are cleaned on a monthly or quarterly interval. EMLs include, but are not limited to, inverted siphons that run under flood control channels and commercial areas with a high density of food service establishments.
The City executes the collection system maintenance program with two sewer cleaning trucks, each staffed with a two -man crew. The gravity mains within the City are divided into two discrete zones with one crew assigned to each zone. In general, the gravity mains are cleaned in a Northeast to Southwesterly direction, following the natural gravity flow of the sewer system.
To control root growth within the sewer system, the City performs as -needed root control activities. The root control activities include the use of root-killing foam that is approved by the U.S. Environmental Protection Agency for this use. Closed-circuit television (CCTV) inspections are often used to evaluate the root growth and determine the appropriate mitigation measures for each stretch of impacted sewer mainlines.
CCTV inspection of the City’s entire sewer system was completed in 2022 to assess the system condition in detail. The City assigned each sewer segment one of six structural severity ratings established by the National Association of Sewer Service Companies (NASSCO) to classify the condition of sewer lines. Defect severity refers to the degree of damage or degradation, such as cracks, fractures, root intrusion, offsets, and FOG accumulation, in the sewer line. The r ating ranges from Grade 5 for the most severe to Grade 0 for the least severe or no defect identified.
Sewer maintenance activities are scheduled and tracked using the GIS -based computerized maintenance management system (CMMS). For each line segment cle aned, the maintenance crews complete a report detailing the date, time, location, and key observations during the maintenance activities. Field observations include assessment of the type (e.g., roots, FOG, debris) and quantity (e.g., light, medium, and he avy) of materials removed during the line cleaning process. These observations are analyzed and factor into determinations of maintenance frequency adjustments. Additionally, observations of “heavy” accumulation are prioritized for CCTV inspection and/or other source control actions.
Section 4: Operation and Maintenance Program City of Santa Ana 4-10 2025
4.2.2 Lift Station/Force Mains
In addition to the crews maintaining the gravity sewer system, the City’s Water Production staff supports maintenance of the two sewer lift stations and the force mains are cleaned as needed. Wat er Production Operators are cross -trained to assist with the maintenance of these pump systems. Maintenance activities include weekly inspections of each lift station, along with periodic equipment servicing consistent with equipment manufacturer’s recommendations and industry standards/best practices.
4.2.3 Sewer Lateral Maintenance
Property owners are responsible for the maintenance, operation, cleaning, repair and reconstruction of sewer laterals. In an effort to prevent sewer pipe blockages and damage, the City distributes sewer lateral maintenance flyers to the public that contain information about grease and roots management, an example is provided as Appendix H. In some cases, if warranted, the City can assist property owners with sewer lateral repairs or replacement for those laterals that connect to the City’s sewer system, have a cleanout to allow access for inspection equipment and are free of debris through the lateral assistance program.
Even though the City is not responsible for the maintenan ce of private sewer laterals, the City has a Sewer Lateral Replacement and Repair Program (SLRRP) to assist customers with sewer lateral repairs within the public right-of-way. CCTV inspections are often used to evaluate the root growth and determine the appropriate mitigation measures for each stretch of impacted sewer mainlines.
4.3 Training
City sewer system operations and maintenance personnel are trained on the requirements of the WDR Order No. 2022 -0103, and are generally trained in -house/on-the-job to execute collection system maintenance tasks, as well as the Spill Emergency Response Plan procedures and practice drills. Equipment vendors provide additional training for specific equipment or components. When feasible, field crews also attend seminars and/or conferences for additional training opportunities. In addition, all staff attend monthly safety trainings.
Staff that are responsible for submitting data receive additional training on electronic CIWQS procedures.
Water production staff also receive on-the-job and equipment vendor training to operate and maintain all City pumping facilities and related equipment, including the two sewer lift stations. Field operators receive skilled spill volume estimation training. Although not required, City maintenance staff are encouraged to obtain California Water Environment Agency (CWEA) training and certification. Several staff members have received certification through this program.
4.4 Equipment Inventory
4.4.1 Lift Station Inventory
Each of the two sewer lift stations are equipped with redundant pumps. Therefore, should one pump experience reduced performance or a mechanical failure, the redundant pump will automatically start. Both lift stations are equip ped with automatic backup emergency diesel generators for use during power failures.
The City additionally has a stand-by bypass pump that can be deployed to any lift station if needed.
4.4.2 Equipment Inventory
An inventory of pipe and equipment is stored at the City’s Corporate Yard for use by maintenance crews to make repairs to smaller sewer mains and laterals. The City maintains a Call-Out Vehicle with all necessary, back- up materials, including plugs. In addition, the City has an on -call Contractor available to support emergency situations.
Section 4: Operation and Maintenance Program City of Santa Ana 4-11 2025
4.5 Supporting Documents
The following documents, attached as appendices, support the City’s Operation and Maintenance Program, thereby allowing the City to comply with the Operation and Maintenance Program requirements of the WDR:
• Spill Emergency Response Plan, the City of Santa Ana, Appendix C.
• A sample of the City’s Video Inspection Log and Inspection Report, The City of Santa Ana, Appendix I.
• A sample of the City’s Sewer Cleaning Report, The City of Santa Ana, Appendix J.
• A sample of the City’s Sanitary Sewer System Atlas Maps, Appendix K.
Additionally, the following documents also support the City’s Operation and Maintenance Program, and are available from the City’s Water Resources Division. Due t o the size of these documents, they have not been attached as appendices.
• City of Santa Ana Sewer Master Plan – Final Report, December 2016, RMC Section 5: Design and Performance Provisions City of Santa Ana 5-2 2025
Section 5 of this SSMP addresses the requirements included in Attachment D-5 of the Order. The requirements state:
Design and Performance Provisions: The Plan must include the following items as appropriate and applicable to the Enrollee’s system:
(a) 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 defined in Section 8 (System Evalu ation, Capacity Assurance and Capital Improvements) of the Order, the procedures must include component - specific evaluation of the design criteria.
(b) Procedures and standards for the inspection and testing of newly constructed, newly installed, repaired, and rehabilitated system pipelin es, pumps, and other equipment and appurtenances.
Section 5: Design and Performance Provisions
The City has established Sewer System Standard Plans, Standard Specifications and Design Guidelines requiring that all new ly constructed, newly installed, repaired, and rehabilitated sanitary sewer pipelines, pump stations, and other equipment and appurtenances, be designed and constructed in accordance with the City’s established standards.
5.1 Updated Design Criteria and Construction Standards and Specifications
The C ity’s established standards c ontain design and construction standards and specifications for the installation of new sanitary sewer systems, and other appurtenances, and for the rehabilitation and repair of existing sanitary sewer infrastructure.
The City’s Specifications by reference incorporate the American Public Works Association Standard Plans and Specifications for Public Works Construction (“Greenbook”), which helps ensure proper design and construction of sewer facilities.
Additionally, the City has standardized its use of equipment in the pumping stations for ease of maintenance and replacement. This includes the pumps, liquid level indicators, electrical components, valves, piping and radios.
The City also uses cured -in-place pipe lining technology where these methods are cost effective and practical to supplement traditional replacement and rehabilitation methods. The City has adopted the American Public Works Association Standard Specifications for Public Works Construction (“Greenbook”) as its standard specification for sewer projects. The Greenbook specifications for pipeline rehabilitation are used as the standard for City projects.
Section 5: Design and Performance Provisions City of Santa Ana 5-2 2025
5.2 Procedures and Standards
The City’s established standards c ontain procedures and standards for the inspection and testing of newly constructed, newly installed, repaired, and rehabilitated system pipelines, pumps, and other appurtenances.
Inspection and testing of new construction is accomplished by trained City Public Works Agency construction inspectors. These inspectors ensure that all sewer projects are completed in accordance with the City’s standards.
5.2.1 Supporting Documents
The following documents, attached as appendices, support the City’s Design and Performance Provisions, thereby allowing the City to comply with the Design and Performance Provisions requirements of the WDR:
• The City of Santa Ana Standard Plans for Sanitary Sewers, Public Works Agency, Appendix F.
• The City of Santa Ana Standard Specifications of Sewer Construction, Public Works Agency, Appendix G
Additionally, the following documents also support the City’s Design Provisions, and are available from the City’s Water Resources Division. Due to the size of these documents, they have not been attached as appendices.
• Standard Specifications for Public Works Construction, Latest Edition adopted by The Greenbook Committee of Public Works Standards, Inc.
• Standard Plans for Public Works, 2019 Edition as promulgated by the “Greenbook” Committee of Public Works Standards, Inc.
Section 6: Spill Emergency Response Plan City of Santa Ana 6-2 2025
Section 6 of this SSMP addresses the requirements included in Attachment D-6 of the Order. The requirements state:
Spill Emergency Response Plan: The Plan must include an up-to-date Spill Emergency Response Plan (SERP) to ensure prompt detection and response to spills to reduce spill volumes and collect information for the prevention of future spills. The SERP must include procedures to:
(a) Notify primary responders, appropriate local officials, and regulatory agencies in a timely manner;
(b) Notify other potentially affected entities (e.g. health agencies, water suppliers, etc.) of spills that potentially affect public health or reach waters of the State; (c) Comply with the notification, monitoring and reporting requirements of the Order, State law and regulations, and applicable Regional Water Board Orders; (d) Ensure that appropriate staff and contractors implement the SERP and are appropriately trained;
(e) Address emergency system operations, traffic control and other necessary response activities;
(f) Contain a spill and prevent/minimize discharges to waters of the State or any drainage conveyance system;
(g) Minimize and remediate public health impacts and adverse impact s on beneficial uses of waters of the State;
(h) Remove sewage from the drainage conveyance system;
(i) Clean the spill area and drainage conveyance system in a manner that does not inadvertently impact beneficial uses in the receiving waters; (j) Implement technologi es, practices, equipment, and interagency coordination to expedite spill containment and recovery;
(k) Implement pre-planned coordination and collaboration with storm drain agencies and other utility agencies/departments prior, during, and after a spill event; (l) Conduct post-spill assessments of spill response activities; (m) Document and report spill events as required in the Order; (n) Annually, review and assess effectiveness of the SERP, and update the Plan as needed.
Section 6: Spill Emergency Response Plan
Section 6: Spill Emergency Response Plan City of Santa Ana 6-2 2025
6.1 Procedures and Standards
The City has outlined specific measures to protect public health and the environment in its Spill Emergency Response Plan (SERP) (Appendix C). These procedures contain a plan for responding and reporting to spills which includes, but is not limited to, the following:
1) The City’s Spill Emergency Response Plan (SERP) outlines the proper spill notification procedures, thereby ensuring that primary responders and regulatory agencies are informed of all spills in a timely manner;
2) The City complies with the notification, monitoring and reporting requirements of the 2022 waste discharge requirements ( WDR), State law and regulations, and applicable Regional Water Board Orders.
3) City policy is to respond to all spills within the City whether on public or private property and to take all steps possible to prevent the spills from reaching the storm drains, flood control channels, or waters of the State, all in accordance with the WDR.
4) The City’s SERP contains a program to ensure an appropriate response to all types of spills;
5) The City’s SERP outlines the procedures which ensure prompt notification to appropriate regulatory agencies and other potentially affected entities of all spills that potentially affect public health or reach the waters of the State in accordance with the Monitoring and Reporting Program (MRP) and WDR Order. In addition, agencies to be notified include the Orange County Health Care Agency (OCHCA), and the California State Office of Emergency Services (OES), if necessary. These procedures also identify the officials who will receive immediate notification;
6) The City conducts internal training sessions to ensure familiarity with these procedures and prepare staff for a spill event, from initial notification to spill report documentation, including any necessary emergency activities, such as traffic control. In addition, City staff attend the OC San spill simulation training seminars whenever they are conducted by OC San;
7) City of Santa Ana sewer maintenance staff are trained to implement pre-planned coordination and collaboration with storm drain agencies, other utility agencies, and other departments prior to, during, and after a spill event. Specifically, staff are trained in the placement of traffic control and can respond to all but the most extreme emergencies. If a spill necessitates extensive traffic and or crowd control, the City’s Police Department is contacted. Officers are trained in traffic and crowd control during emergency situations. These procedures are also addressed in the City’s SERP; and
8) The SERP ensures that all reasonable steps are taken to contain and prevent the discharge of untreated and partially treated wastewater to waters of the State and to minimize or correct any adverse impact on the environment resulting from the spills.
9) Spill events are documented in accordance with the WDR. The City relies on the Orange County Health Care Agency (OCHCA) for monitoring water quality and posting beach closures. All spills are reported immediately to the OCHCA office.
The WDR Order has specific procedures for the 4 Categories of Sanitary Sewer Spills:
▪ Category 1: a spill of any volume of sewage from or caused by a sanitary sewer system that Section 6: Spill Emergency Response Plan City of Santa Ana 6-2 2025
results in a discharge to a surface 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.
▪ Category 2: a spill of 1,000 gallons or greater, from or caused by a sanitary sewer system failure or blockage, that spills out of a lateral and does not discharge to a surface water. ▪ Category 3: a spill of equal to or greater than 50 gallons and less than 1,000 gallons, from or caused by a sanitary sewer system failure or blockage, that spills out of a lateral and does not discharge to a surface water.
▪ Category 4: a spill of less than 50 gallons, from or caused by a sanitary sewer system failure or blockage, that spills out of a lateral and does not discharge to a surface water.
The City has procedures for conducting water quality sampling and preparing a Spill Report for any Category 1 and Category 2 spills. Per WDR requirements, the City shall submit a draft Spill Report to the online CIWQS database within 3 business days of the City’s knowledge of a Category 1 spill; and the City shall submit a Certified Spill Report to the CIWQS within 15 calendar days.
The City shall report and certify all Category 3 and Category 4 spills to the online CIWQS database within 30 calendar days after the end of the month in which spills occurred.
The City also has procedures for conducting water quality sampling and preparing a Spill Technical Report for any Category 1 spill in which 50,000 gallons or greater are spill to surface waters. For spills of this volume, the City shall submit a Spill Technical Report to the CIWQS database within 45 calendar days of the spill end date.
Annually, the City will review and assess the effectiveness of its SERP, and update the Plan as needed.
6.1.1 Supporting Documents
The following documents allow the City to comply with the spill emergency response plan requirements of the WDR Order, and are attached as appendices.
• Spill Emergency Response Plan, City of Santa Ana, Water Resources Division, Appendix C.
Section 7: Sewer Pipe Blockage Control Program City of Santa Ana 7-
17 2025
Section 7 of this SSMP addresses the requirements included in Attachment D-7 of the Order. The requirements state:
Sewer Pipe Blockage Control Program: The SSMP must include procedures for the evaluation of its service area to determine whether a sewer pipe blockage control program is needed to control fats, oils, grease (FOG), rags and debris. If the Enrollee determines that a program is not needed, the Enrollee shall provide a justification in its Plan for why a program is not needed. The procedures must include at a minimum:
(a) An implementation plan and schedule for a public education and outreach program that promotes proper disposal of pipe-blocking substances; (b) A plan and schedule for the disposal of pipe -blocking substances generated within the sanitary sewer 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; (c) The legal authority to prohibit discharges to the system and identify measures to prevent spills and blockages;
(d) Requirements to install grease removal devices (such as traps or intercept ors), design standards for the removal devices, maintenance requirements, best management practices requirements, recordkeeping and reporting requirements;
(e) Authority to inspect grease producing facilities, enforcement authorities, and whether the Enrollee has sufficient staff to inspect and enforce the FOG ordinance;
(f) An identification of sanitary sewer system sections subject to FOG blockages and the establishment of a cleaning schedule for each section; and (g) Implementation of source control measures for all sources of FOG reaching the sanitary sewer system for each section identified above.
Section 7: Sewer Pipe Blockage Control Program
7.1 Sewer Pipe blockage Control Program Summary
To reduce the amount of fats, oils and grease (FOG), rags and other debris discharged into the City’s sanitary sewer system, the City has developed a FOG Control Program. The City has identified all Food Service Establishments (FSE) within its service area as part of a monitoring and surveillance program, as per Ordinance No. NS 2921. Accordingly, these FSE’s must submit building plans in order to receive sewer service.
Section 7: Sewer Pipe Blockage Control Program City of Santa Ana 7-
18 2025
This process includes an interceptor -sizing component and an Interceptor Maintenance Plan, which includes the City’s maintenance requirements, BMP requirements, record keeping and reporting requirements. A list of all FSE’s is maintained by the City in an FSE Access database and includes all grease removal equipment and documentation requirements.
The City has identified the sections of its sanitary sewer system subject to high levels of FOG, and has developed an Operation and Maintenance Program which includes a higher frequency (typically monthly) cleaning schedule for each of these sections. FSEs located upstream of these locations are subsequently inspected more frequently to help control the FOG discharge. Elements of the FOG Control Program includes:
1) City Staff and the City’s FOG Program consultant meets with FSE owners during inspections, and as needed, to discuss the City’s FOG Control Program and proper grease control device maintenance. The City has developed formal literature to be disseminated during these meetings. The City also distributes FOG educational materials to residential communities associated with high levels of FOG discharge and has made educational materials including “dos and don’ts” to help reduce FOG discharges, kitchen BMPs in three languages, training and interceptor maintenance logs, informational charts, and more available on the FOG Control Program section of their website.
2) The City requires that each FSE maintain a plan and schedule for the disposal of FOG generated by its activities. The plan and schedule can be found within the FOG Control Program Manual’s Appendix L.
3) In January of 2005, the City of Santa Ana impleme nted a FOG Control Program that includes all of the required WDR elements. A copy of the FOG Control Program Manual was submitted to the Regional Board in January, 2005. The FOG Control Program Manual is incorporated, by reference, into the SSMP and was updated in December 2019. All elements of the FOG Control Program are currently being implemented by a combination of City staff and consultants. The City’s FOG Ordinance (Ordinance No.
NS 2921) provides the legal authority necessary to enforce the FOG program.
4) The City’s requirements to install grease removal devices are discussed in Section 4.3 – FOG Wastewater Discharge Requirements of the City of Santa Ana Fats, Oils, and Grease (FOG) Control Program Manual. This section, and related sections in the FOG Control Program Manual also describe the requirements for design standards for the removal devices, maintenance requirements, BMP requirements, and record keeping and reporting requirements.
5) The City has legal authority to inspect grease producing facilities established in Ordinance No. NS 2921 and the FOG Control Program Manual and enforces any violation of the sewer ordinance in accordance with City requirements . The City has sufficient staff to provide inspections of each grease removal device in its service area at least once per year.
6) The City has identified sections of its sanitary sewer system subject to high levels of FOG in its Digital Sewer Atlas (infraMAP). Accordingly, the City’s Operation and Maintenance Program includes a higher frequency ( typically monthly) cleaning schedule for each of these sections. These measures have prevented FOG related SSOs from occurring. Using infraMAP, the City can also pinpoint inspections to focus on these sections identified with high FOG accumulation. Inspection results and inspection history is stored in the infraMAP database and evaluated periodically.
The City of Santa Ana has created an “Enhanced Maintenance Location (EML) Database” as a part of the Sewer System Infrastructure Management System. These EMLs along with siphons are cleaned on a weekly or monthly basis, depending on the severity of the problem.
Section 7: Sewer Pipe Blockage Control Program City of Santa Ana 7-
19 2025
7) The City has developed and implemented source control measures for all sources of FOG discharged to the sanitary sewer system for each section of the Sewer Line Problem Areas identified by adopting Ordinance No. NS 2921.
A major collaborative effort took place in this SSMP requirement during the development of the City’s existing SSMP. A FOG Control Program Manual was developed to specify the key e lements of the ongoing FOG Control Program and will be further discussed and updated (when necessary) as required in the WDR.
A comprehensive FOG source identification investigation process is being implemented and refined as part of the FOG Control Progr am. The process incorporates CCTV investigation along with FSE inspections to determine the sources of FOG discharges to sewer system EMLs. The source identification process is included in the FOG Control Program Manual.
7.1 Supporting Documents
The following documents, attached as appendices, support the City’s FOG Control Program, thereby assist the City to comply with the FOG Control Program requirements of the Statewide General Waste Discharge Requirements (WDR):
• City of Santa Ana Municipal Code, Chapter 39, Appendix D;
• Ordinance No. NS-2921, Appendix E;
• The City of Santa Ana Standard Plans for Sanitary Sewers, Public Works Agency, Appendix F;
• The City of Santa Ana Standard Specifications of Sewer Construction, Public Works Agency, Appendix G;
• The City of Santa Ana FOG Control Program Manual, Appendix L;
• A Collection of Regulations and Logs which support the FOG Control Program, Appendix M:
o FOG Rules and Regulations (English)
o FOG Rules and Regulations (Spanish)
o FOG Worksite Poster
o FSE Employee Training Log
o FSE GRE Maintenance Log
o FSE Lateral Maintenance Log
o FSE Waste Grease Log
Section 8: System Evaluation, Capacity Assurance
and Capital Improvements City of Santa Ana
8-2 2025
Section 8 of this SSMP addresses the requirements included in Attachment D-8 of the Order. The requirements state:
System Evaluation, Capacity Assurance and Capital Improvements: Each Enrollee must include procedures and activities for:
(a) Routine evaluation and assessment of system conditions; (b) Capacity assessment and design criteria
(c) Prioritization of corrective actions; and
(d) A Capital Improvement Plan (CIP).
System Evaluation and Condition Assessment: The Plan must include procedures to:
(a) Evaluate the sanitary sewer system assets utilizing the best practices and technologies available;
(b) Identify and justify the amount (percentage) of its system for its condition to be assessed each year
(c) Prioritize the condition assessment of system areas that: hold a high level o f 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 area s, and/or are within the vicinity of a receiving water with a bacterial -related impairment on the Clean Water Act section 303(d) List;
(d) Assess the system conditions using visual observations, video surveillance and/or other comparable system inspection methods;
(e) Utilize observations/evidence of system conditions that may contribute to exiting of sewage from the system which can be reasonably expected to discharge into a water of the State;
(f) Maintain documents and recordkeeping of system evaluation and conditio n assessment inspections and activities; and
Section 8: System Evaluation, Capacity Assurance
and Capital Improvements
Section 8: System Evaluation, Capacity Assurance
and Capital Improvements City of Santa Ana
8-2 2025
(g) Identify system assets vulnerable to direct and indirect impacts of climate change, including sea level rise, flooding and/or erosion due to increased storm volumes, frequency, and/or intensity; wildfires; and increased power disruptions.
Capacity Assessment and Design Criteria : The Plan must include procedures to identify system components that are experiencing or contributing t o spills caused by hydraulic deficiency and/or limited capacity, including procedures to identify the appropriate hydraulic capacity of key system elements for:
(a) Dry-weather peak flow conditions that cause or contribute to spill events (b) The appropriate desig n storm(s) or wet -weather events that cause or contribute to spill events;
(c) The capacity of key system elements; and
(d) Identify the major sources that contribute to the peak flows associated with sewer spills.
The capacity assessment must cover:
(a) Data from existing system condition assessments, system inspections, system audits, spill history, and other available information; (b) Capacity of flood-prone systems subject to increased infiltration and inflow (I/I), under normal local and regional storm conditions; (c) Capacity of systems subject to increased I/I due to larger and/or higher- intensity storm events as a result of climate change;
(d) Increases of erosive forces in canyons and streams near underground and above-ground system components due to larger and/or higher-intensity storm events;
(e) Capacity of major system elements to accommodate dry-weather peak flow conditions, and updated design storm and wet-weather events; and (f) Necessary redundancy in pumping and storage capabilities.
Prioritization of Corrective Action: The findings of the condition assessments and capacity assessments must be used to prioritize corrective actions. Prioritization must also consider the severity of the consequences of potential spills.
Capital Improvement Plan (CIP): The CIP must include the following items:
(a) Project schedules including completion dates for all portions of the CIP; (b) Internal/external project funding sources for each project; and (c) Joint coordination between O&M staff, and engineering staff/consultants during
Section 8: System Evaluation, Capacity Assurance
and Capital Improvements City of Santa Ana
8-2 2025
(c) Joint coordination between O&M staff, and engineering staff/consultants during planning, design, and construction of CIP projects; and interagency coordination with other impacted utility agencies.
The City’s Sewer Master Plan encompasses the following component s detailed in the following subsections to meet the requirements outlined above and in the Order.
8.1 Capacity Assessment and Design Criteria
The 2016 Sewer Master Plan Update and Infiltration and Inflow Study analyzed the capacity of larger city sewers (gen erally 10 -inch diameter and larger) for peak flow conditions under both dry and wet weather conditions. Deficient sewer line segments are identified for prioritization in the capital replacement program.
The 2016 Sewer System Master Plan includes a list o f recommended projects to address existing and future capacity deficiencies. The projects are grouped in four different priority categories, with priority 1 being the highest priority category and 4 being the lowest priority category. A copy of this Master Plan document has been provided to the Regional Board in digital format.
The City’s Sanitary Sewer Standard Specifications and the Standard Plans for Sanitary Sewers and Design Guidelines for Water and Sewer Facilities outline the appropriate design criteria necessary to ensure sufficient capacity, as well as preserve the estimated life -cycle of wastewater infrastructure. Any design that is not encompassed by the City Standards shall be sufficiently reviewed to ensure proper design and construction of the facility.
8.2 Priority of Corrective Actions
There are several steps needed to establish a short- and long-term CIP to address identified hydraulic deficiencies, including prioritization, alternatives analysis, and schedules. The findings of condition assessments and capacity assessments are used to prioritize corrective actions. The CIP also considers the severity of the consequences of potential spills when prioritizing projects. Examples of CIP enhancements may include increases in pipe size, I/I red uction programs, increases and redundancy in pumping capacity, and storage facilities. The CIP includes an implementation schedule and identifies sources of funding.
8.3 Capital Improvement Plan (CIP)
The City has established a Capital Improvement Program (CIP) to address projected hydraulic deficiencies. The CIP is included in the City of Santa Ana Sewer Master Plan, and includes projected cost estimates, alternatives analyses and project prioritization. The City’s Sewer Enterprise Funds describe how the City proposes to continue to pay for the CIP, by noting fund balances, funding sources and fund uses.
The Sewer Master Plan Update contains a list of each projects identified as necessary to increase the capacity of portions of the system. The projects are grouped by priority into four categories, with priority category one being the highest. The projects are being addressed based upon priorities.
Section 8: System Evaluation, Capacity Assurance
and Capital Improvements City of Santa Ana
8-2 2025
Two separate funds support the City’s Capital Improvement Program (CIP). The Sanitary Sewer Service fund is allocated for maintenance, rehabilitation and repair and replacement of sanitary sewer facilities, as well as emergency response to sewer blockage issues. The Sewer Connection Fee fund is allocated solely for the construction of sewer capacity enhancements. The City balances the rehabilitation projects on a year -to-year basis and aims to improve the operating efficiency and life expectancy of the entire sewer system. Sewer service rates are periodically reviewed and adjusted to address identified CIP needs.
8.3.2 Supporting Documents
The following documents, attached as appendices, support the City’s System Evaluation and Capacity Assurance Plan, thereby allowing the City to comply with the System Evaluation and Capacity Assurance Plan requirements of the WDR:
• The City of Santa Ana Standard Plans for Sanitary Sewers, Public Works Agency, Appendix F.
Additionally, the following documents also support the City’s System Evaluation and Capacity Assurance Plan, and are available from the City’s Water Resources Division. Due to the size of these documents, they have not been attached as appendices.
• City of Santa Ana Sewer Master Plan – Final Report, December 2016 Section 9: Monitoring, Measurement and Program Modifications City of Santa Ana 9-2 2025
Section 9 of this SSMP addresses the requirements included in Attachment D-9 of the Order. The requirements state:
Monitoring, Measurement, and Program Modifications: The Enrollee shall include an adaptive management section that addresses Plan-implementation effectiveness and the steps for necessary Plan improvement, including:
(a) Maintaining relevant information, including audit findings, to establish and prioritize appropriate Plan activities;
(b) Monitoring the implementation and measuring the effectiveness of each Plan element;
(c) Assessing the success of the preventive operation and maintenance activities; (d) Updating Plan procedures and activities, as appropriate, based on the results of monitoring and performance evaluations; and
(e) Identifying and illustrating spill trends, including spill frequency, locations and estimated volumes.
Section 9: Monitoring, Measurement and Program
Modifications
The City evaluates the following Monitoring, Measurement, and Program Modifications Metrics for the sanitary sewer system and all elements of the SSMP:
The SSMP elements are discussed periodically throughout the year during regular staff meetings with the Water Resources Manager and the division supervisors. Additional meetings to assess the effectiveness of individual elements are held as needed. Major studies, such as Sewer Master Plan audits and updates, and Infiltration and Inflow Studies are also used to measure the effectiveness of the SSMP and make revisions as appropriate.
The City tracks the location and cause of all spills, blockages, and gravity main EMLs. The City maintains a cleaning activity log, which details the size, material and location of each pipe cleaned, as well as the equipment utilized, and any relevant remarks observed during the cleaning. The City utilizes field data acquisition software (infraMap), which utilizes ESRI software for preventative maintenance tracking and work orders.
City Field Staff observe all gravity mains and manholes during routine cleaning and conduct localized video inspections when their observations warrant further investigation. Additionally, the City conducts system-wide video inspections, and each pipe is given a score based on the National Association of Sewer Service Companies’ (NASSCO) pipeline rating system. All ratings are incorporated into the GIS so that all scoring is associated with a corresponding pipe that has been inspected. These ratings, as well as the observed condition of each pipeline, allow the City to identify gravity mains that are at risk of collapse or prone to more frequent blockages due to pipe defects.
Section 9: Monitoring, Measurement and Program Modifications City of Santa Ana 9-2 2025
The City identifies all food preparation and service locations within the city limits as part of its monitoring and surveillance program. A list of all such customers is maintained by the City’s FOG control consultant in its databases as well as in the City’s digital atlas maps. All interceptors are inspected at least once a year by the City’s Inspectors as well as the City’s FOG control consultant in accordance with the City’s FOG Control Program Manual.
In order to monitor the implementation and measure the effectiveness of the SSMP, the City tracks several performance indicators, including:
• Number and location of spills over the past 12 months, distinguishing between dry weather spills and wet weather spills;
• Volume distribution of spills (e.g. number of spills < 100 gallons, 100 to 999 gallons, 1,000 to 9,999 gallons, > 10,000 gallons);
• Number of gravity grease interceptors inspected over the past 12 months;
• Miles of gravity mains cleaned over the past 12 months;
The SSMP and its elements will be updated in accordance with the results of the monitoring described above.
To date, revisions have been made to the FOG Control Program Manual as well as the Sewer Spill Procedures.
9.1 Supporting Documents
The following documents allow the City to comply with the Monitoring, Measurement, and Program Modifications requirements of the WDR, and are attached as appendices.
• A sample of the City’s Video Inspection Log and Inspection Report, Appendix I.
Section 10: Internal Audits City of Santa Ana
10-1 2025
Section 10 of this SSMP addresses the requirements included in Attachment D-10 of the Order. The requirements state:
Internal Audits: The Plan shall include 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 the General Order.
Section 10: Internal Audits
The City will submit its SSMP Audit and other pertinent audit information, in accordance with Section 5.4 (Sewer System Management Plan Audits) of the Order, to the online CIWQS Sanitary Sewer System Database by six (6) months after the end of the 3-year audit period. The City shall conduct internal audits at a minimum frequency of once every three (3) years, evaluating its SSMP and its compliance with the requirements of Order No. 2022-0103-DWQ. The audit will use data collected as part of Section 9 – Monitoring, Measurement, and Program Modifications and performance indicators to identify and correct SSMP deficiencies in the Audit Report. Audit Reports are available upon request.
The internal audits include, but are not limited to the following:
• A review of this SSMP document to ensure compliance with the regulations established in the State Water Resources Control Board’s Order No. 2022-0103-DWQ.;
• A review of any supporting documents listed in this SSMP;
• SSMP implementation efforts over the past two (2) years;
• A description of additions and improvements made to the sanitary sewer collections system during the past three (3) years;
• A description of additions and improvements planned for the upcoming three (3) years;
• A list of deficiencies, if identified, and a plan to correct the identified deficiencies.
Per Attachment E1 of the WDR Order, if an SSMP 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 of the jurisdiction for the lapsed requirements.
The Enrollee’s reporting of a justification for not conducting a timely Audit does not justify non-compliance with the General Order. The Enrollee shall:
• Submit the late Audit as required in the General Order; and
• Comply with the subsequent Audit requirements and due dates corresponding with the original audit cycle.
Section 10: Internal Audits City of Santa Ana
11-1 2025
10.1 Internal Audit Schedule
Audits must be conducted during the audit period and must include Sewer System Management Plan A udit Reports and other pertinent information . Audit Reports are due within six (6) months after the end of the three (3) year audit period. Audit Reports must be submitted into the online CIWQS Sanitary Sewer Database no later than November 2 of the following calendar year.
The last audit period ended in May, 2024 and the audit report was electronically submitted to CIWQS . The next audit period ends in May, 2027, and the associated Audit Report is due into the CIWQS database by November 2, 2027.
10.2 Supporting Documents
There are no applicable documents for this section.
Section 11: Communication Program City of Santa Ana
11-1 2025
Section 11 of this SSMP addresses the requirements included in Attachment D-11 of the Order. The requirements state:
Communication Program: The Plan must include procedures for the Enrollee to communicate with:
(a) 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 SSMP, including opportunities for public input to Plan implementation and updates.
(b) Owners/operators of systems that connect into the Enrollee’s system, including satellite systems, for system operation, maintenance, and capital improvement- related activities.
Section 11: Communication Program
The City communicate s on a regular basis with the public on the development, implementation, and performance of its SSMP. The communication system allows the public the opportunity to provide input to the City as the program is developed and implemented. The City has also created a plan of communication with systems that are tributary and / or satellite to the City’s sanitary sewer system.
The Water Resources Manager provides interested parties with status updates on the implementation of the components of the SSMP and also considers comments made by interested parties. Additionally, the City’s website ( www.santa-ana.org) presents information about on -going efforts, general information, as well as meeting agendas and minutes.
The City website’s Sewer Services homepage has links to water and sewer design guidelines (including the sewer construction standards docume nt), the FOG control program (including permit applications, and BMP documents in multiple languages and other helpful guidelines), sewer line stoppages, 2019 sewer rate study, sewer plans and documents (including the SSMP and Sewer Master Plan), and sewer resources (including the WDR Order, CIWQS resources, and more).
11.1 Communication of Spills and Discharges
The City website’s Sewer line stoppages link contains procedures for how to avoid stoppages, including BMPs and to minimize spills that do occur. The Public Works department phone number is made available for the public to call in the event of a break-in or the collapse of the sewer lateral beyond the residential property line or for general assistance to contain a spill.
11.3 Supporting Documents
There are no applicable documents for this section.
APPENDIX A
SWRCB ORDER NO. 2022-0103-DWQ
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
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
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
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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/)
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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.
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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
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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
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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
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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.
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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.”
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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.
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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.
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.
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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.
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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.
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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
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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:
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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,
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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
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.
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;
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• 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;
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• 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.
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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;
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;
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;
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;
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.
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.
3.3. 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
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 15
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
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▪ 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
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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
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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
ORANIZA TIONAL CHART ,
THE CITY OF SANT A ANA, PUBLIC WORKS AGENCY
Deputy Public Works
Director / W ter
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W ter Systems Oper torIIAnthony MeleAMele@s nt - n .org 71 7 3380 W ter Systems Oper torIIIJ ime Pen JPen @s nt - n .org 71 7 3531 3 W ter ProductionM int - Northe st
Sr M inten nce WorkerP/T VAC PCN 3353…
W ter Systems Oper tor I(uf II V c nt 2 7 0 017 0
W ter Systems Oper torII (of)Jon th n V rg sjv rg s10@s nt - n .org 71 7 3380 W ter Systems Oper torIIIJorge N v rro Di zjn v rro5@s nt - n .org 71 7 3530 3 W ter ProductionM int -Northwest
W ter Systems Electrici nP ul M dridPM drid@s nt - n .org 71 7 3380 W ter Systems Electrici nKyle GillespieKGillespie@s nt - n .org 71 7 3532 Assist nt InstrumentTechnici n PCN 3 17 A…
Assist nt InstrumentTechnici nD nny De LeonDDeLeon@s nt - n .org 71 7 3380 InstrumentTechnici nLuis Solislsolis5@s nt - n .org 71 7 3528 Instrument tion &Electric l Services 5
W ter Services ProductionSupervisorJu n R mirezjr mirez@s nt - n .org 71 7 3377 W ter ProductionOper tions 17
Engineering Apprentice(uf) P/T PCN 32 3…
Assist nt EngineerV c nt 10 2
Engineering AideN ris C sug 71 7 337 71 7 3527 Assist nt EngineerS muel OrtizSOrtiz@s nt - n .org 71 7 337 Associ te EngineerHector Medin hmedin @s nt - n .org 71 7 3538 Associ te EngineerKyle BushhousenKBushhousen@s nt - n .org 71 7 33 7 W ter Conserv tionSpeci listAlondr Renteri Solis solis5@s nt - n .org 71 7 3380 W ter Use Efficiency1
Senior Civil EngineerF llon Fr nklinFFr nklin@s nt - n .org 71 7 3378 7 W ter Oper tionsEngineering 8
Wtr Conserv tion Rep P/TPCN 3518 AU 0 017 …
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Administr tive AideP/TJoel S ldiv rjs ldiv r5@s nt - n .org 71 7 3578 W ter Services Qu lityInspectorAngel Agosto gosto@s nt - n .org 71 7 3380 W ter Services Qu lityInspectorDeSh nnon Br swelldbr swell@s nt - n .org 71 7 3380 W ter Services Qu lityInspectorRich rd Ch rbene uRCh rbene u@s nt - n .org 71 7 357 W ter Services Qu lityInspector-Itzel Oc mpoioc mpo@s nt - n .org 71 7 3585 W ter Services Qu litySupervisorRobert Gonz lesrgonz les@s nt - n .org 71 7 353 W ter Qu lity 10
W ter Services Qu lityCoordin torRobert Hern ndezryhern ndez@s nt - n .org 71 7 33 1 1 W ter Qu lity &Regul tory… 11
Princip l Civil EngineerHeidi ChouHChou@s nt - n .org 71 7 3571 3 Oper tions, W terQu lity & Regul to…37
Sr M inten nce AideP/TV c nt
Senior M inten nceWorker P/TV c nt 33
Senior M inten nceWorker P/TBern rdo Lor blor @s nt - n .org 71 7 3380 Corpor te Y rdM inten nce Attend nt…R ymond Roblesrrobles@s nt - n .org 71 7 3380 Corpor te Y rd M intAttend ntD niel Yepezdyepez@s nt - n .org 71 7 3380W ter Services UtilityInspectorVincent Lopezvlopez@s nt - n .org 71 7 33 2 W ter Services UtilityInspectorFr nk Du rtefdu rte@s nt - n .org 71 7 332 Utility M rking &Inspection 2
Senior M inten nceWorker P/TV c nt 3523
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W ter Services Worker II(uf)- HIRING REQ#2025…V c nt
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W ter Services Worker II(uf) R miro M rtinez…
W ter Services WorkerIErick Prillwitzeprillwitz@s nt - n .org 71 7 3380 W ter Services Worker I Title Ch nge)Victor Montes R mirezVR mirez@s nt - n .org 71 7 3380 W ter Services Worker II(uf)C rlos TrellezCTrellez@s nt - n .org 71 7 3380 W ter Services Worker II(uf) - VAC
W ter Services WorkerIIIv n Quinonesiquinones@s nt - n .org 71 7 3380 Equipment Oper tor-W ter ServicesBr ndon Gr yBGr y@s nt - n .org 71 7 3380 Equipment Oper tor -W ter Services (of)Jesus Romero R mirezjromero5@s nt - n .org 71 7 3380 Equipment Oper tor -W ter ServicesAndrew HyerAHyer@s nt - n .org 71 7 3380 W ter Services CrewLe derMich el G rci mg rci @s nt - n .org 71 7 337 1 W ter Services SupervisorAlej ndro Reyes reyes@s nt - n .org 71 7 33 1 S nit ry SewerOper tion &… 1
Sr M int Worker P/TV c nt 33 7
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Sr M int Worker P/T HIRING PCN 33 3 AU…V c nt
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W ter Services Worker I Title Ch nge)Mich el V squezMV squez10@s nt - n .org 71 7 3380 W ter Services Worker I Title Ch nge)Is c Bl sibl s@s nt - n .org 71 7 3380 W ter Services Worker II(uf)Bri n Cherrettbcherrett@s nt - n .org 71 7 3380 W ter Services Worker II(uf)Cody Acklesc ckles@s nt - n .org 71 7 3380 W ter Services Worker II(of)R f el S nchez Medin rmedin 5@s nt - n .org 71 7 3380 W ter Services Worker II(of)Am dor Ruiz ruiz10@s nt - n .org 71 7 3380 W ter Services WorkerIIG briel Avin g vin @s nt - n .org 71 7 3380 W ter Services WorkerIIMiguel Esc lon MorenoMEsc lon @s nt - n .org 71 7 3380 W ter Services WorkerIIAdri n S l s s l s@s nt - n .org 71 7 3380 Equipment Oper tor -W ter ServicesAndres V rel v rel @s nt - n .org 71 7 3380 Equipment Oper tor -W ter ServicesZeke G rci zg rci @s nt - n .org 71 7 3380 Equipment Oper tor -W ter ServicesGeorge Montezgmontez@s nt - n .org 71 7 3380 Equipment Oper tor -W ter ServicesJeremy Cliftjclift@s nt - n .org 71 7 3380 Equipment Oper tor -W ter Services (TEMP …Phillip R mirezpr mirez@s nt - n .org 71 7 3380 W ter Services CrewLe derEnrique Reynosoereynoso@s nt - n .org 71 7 3321 21 W ter Services SupervisorD vid C rb j ldc rb j l@s nt - n .org 71 7 3373 1 W ter SystemOper tion &… 23
Sr M int Aide P/T VACPCN 27 2 AU 0 017
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W ter Services MeterRep irer II ON LEAVERicky Riosrrios@s nt - n .org 71 7 3380 W ter Services MeterRep irer IIS l M rtinezsm rtinez@s nt - n .org 71 7 3380 W ter Services Worker II(uf)D vid Corre DCorre @s nt - n .org 71 7 3380 W ter Services WorkerIIEric S nchezes nchez@s nt - n .org 71 7 3380 W ter Services CrewLe derArm ndo Mor lesAmor les5@s nt - n .org 71 7 3322 W ter Services SupervisorEdmundo Villel evillel @s nt - n .org 71 7 33 0 1 W ter MeterOper tions &… 8
Senior W ter ServicesSupervisorMich el Murriett mmurriett @s nt - n .org 71 7 33 10 Field Oper tions 53
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Public Works Contr ctsAdministr torJ ime BermudezJBermudez@s nt - n .org 71 7 3570 Public Works ProjectsSpeci listDi n M z riegodm z riego@s nt - n .org 71 7 351 Administr tion &Support Services 7
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Store Aide- TEMP STAFF Tim Cortez
Stores Aide P/TEmm nuel GuerreroPCN 3 800 017 0
Stock Clerk PCN 2 2 AU 07 17102 REQ #202…
Title Ch nge:Storekeeper-VAC PCN…
W rehouse Services5
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Senior Office Assist nt(of) M n gement AideKimberly Orozcokorozco@s nt - n .org 71 7 330 Senior M n gementAn lystV c nt 3382 1
Administr tionServices 2
GISTechnici n-VACANT
Engineering Intern P/T VAC PCN 32 5…
Engineering AideN tivid d Melendeznmelendez@s nt - n .org 71 7 35 EngineeringTechnici nOrl ndo M ci sOM ci s@s nt - n .org 71 7 33 3 Assist nt EngineerPCN 131 AU 0 017 5…
Assist nt EngineerPCN 3 13 AU 0 017 5
Civil Engineer (uf)Associ te EngineerChristine Lecle5@s nt - n .org 71 7 355 Senior Civil EngineerJ ime Ari s Cuev sj ri s@s nt - n .org 71 7 3318 7 Pl nning &Development 8
Engineering Intern P/T VACANT
Engineering InternP/TEth n Drewedrew@s nt - n .org 71 7 35 2 Engineering InternP/TMich el Mellormmellor@s nt - n .org 71 7 3380 Engineering AidePCN 2 37 AU 0 017 5…
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Princip l Civil EngineerArm ndo Fern ndez fern ndez@s nt - n .org 71 7 331 Engineering,C pit lProgr ms &…
Deputy Public WorksDirector / W ter…Ces r B rrer cb rrer @s nt - n .org 71 7 3387 3 W ter Resources 135
APPENDIX C
SPILL EMERGENCY RESPONSE PLAN
REVISION 2.0 (4/23)
CITY OF SANTA ANA SEWAGE
SPILL PROCEDURES
REVISION 2.0 (4/23) 2
TABLE OF CONTENTS
ITEM PAGE
Title ................................................................................................................................. 1 Table of Contents ............................................................................................................ 2 Acronyms and Definitions ................................................................................................ 3 General Information ......................................................................................................... 4 Notify the Supervisor ....................................................................................................... 6 Contain the Spill .............................................................................................................. 8 STOP the Spill ............................................................................................................... 10 Report the Spill .............................................................................................................. 11 Clean Up the Spill ......................................................................................................... 16
APPENDICES
ITEM PAGE
Appendix A – Document Revision Log .......................................................................... 19 Appendix B – Sanitary Sewer Overflow Reporting Guidelines ...................................... 21 Appendix C – Sanitary Sewer Overflow (Field Form) .................................................... 23 Appendix D – Volume Estimation Examples ................................................................. 28
REVISION 2.0 (4/23) 3
ACRONYMS AND DEFINITIONS
ACRONYMS
CIWQS – California Integrated Water Quality System
GPM – Gallons Per Minute
GAL - Gallons
LRO – Legally Responsible Officer
NPDES – National Pollutant Discharge Elimination System OCEMA – Orange County Environmental Management Agency
OCFA – Orange County Fire Authority
OCHCA – Orange County Health Care Agency
OCSD – Orange County Sanitary District
OES – Office of Emergency Services
PWA – Public Works Agency
RWQCB – Regional Water Quality Control Board
DEFINITIONS
Flow Rate – The amount of fluid that flows in a given time. For the purpose of this manual, flow rate is expressed in gallons per minute (GPM).
Legally Responsible Official (LRO) – Is a person who is legally responsible to represent the sewer agency and the information being presented to the State.
Public right-of-way – Is a path for public access either meaning a sidewalk or street and is not restricted by private land ownership.
Spill – is a condition whereby untreated sewage is discharged into the environment prior to reaching sewage treatment facilities.
Storm Drain – Is a drain or drain system that is designed to drain excess rain and ground water from paved streets, parking lots, sidewalks, and roofs.
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.
Surface Waters – All permanent and intermittent drainage ways, lakes, and reservoirs, either public or private, which are not man-made for the treatment of municipal, agricultural, or industrial waste, and wholly or partially within the boundaries of the City
REVISION 2.0 (4/23) 4
of Santa Ana. Spills to storm drains tributary to surface waters shall be reported as discharges to surface waters.
Waters of the State – Is any surface water or groundwater within the boundaries of the state including any creek, river, lake, ocean, or wetland etc.
GENERAL INFORMATION
The objectives of a sewage spill response procedure are to protect public health, the environment, and public and private property. These objectives are accomplished by notifying, containing, stopping, cleaning up, and reporting the spill to the appropriate authorities.
GENERAL PROCEDURES
When responding to a sewage spill, the following general procedures should be followed in order:
1st: NOTIFY THE SUPERVISOR AND OR ON-CALL SUPERVISOR
2nd: CONTAIN THE SPILL
3rd: STOP THE SPILL
4th: CLEAN UP THE SPILL
5th: REPORT THE SPILL TO APPROPRIATE AUTHORITIES WITHIN 2 HOURS OF BECOMING AWARE OF THE SPILL (Refer to Appendix B, SANITARY
SEWER OVERFLOW REPORTING GUIDELINES)
SEWAGE SPILL TYPES
Any incident in which sewage is discharged onto the surface is considered a sewage spill.
There are five types of spills; Category 1, Category 2, Category 3, Category 4 and Private Lateral.
Category 1 Spill: A discharge of sewage of any volume from or caused by an enrollee’s sanitary sewer system 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.
REVISION 2.0 (4/23) 5
• 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 (e.g., infiltration pit, percolation pond).
• A spill from an Enrollee-owned and/or operated lateral that discharges to a surface water.
Category 2: A discharge of sewage:
• That is 1,000 gallons or greater.
• That does not discharge to a surface water.
• That enters a drainage conveyance system but is fully recovered and returned to the sanitary sewer system.
Category 3: A discharge of sewage:
• That is greater than or equal to 50 gallons and less than 1,000 gallons. • That does not discharge to a surface water.
• That enters a drainage conveyance system but is fully recovered and returned to the sanitary sewer system.
Category 4: A discharge of sewage:
• That is less than 50 gallons.
• That does not discharge to a surface water.
• That enters a drainage conveyance system but is fully recovered and returned to the sanitary sewer system.
Private Lateral Spills:
• Discharges of untreated or partially treated wastewater resulting from blockages or other problems within a privately owned sewer lateral connection to the enrollee’s sanitary sewer system or from other private sewer assets.
REVISION 2.0 (4/23) 6
SPILL CATEGORY DETERMINATION DIAGRAM
NOTIFY THE SUPERVISOR
Upon receiving a call after normal working hours to respond to any sew er spill, the designated primary on -call employee shall immediately contact the on-call water resources maintenance supervisor and inform him of the sewer spill event. The primary on-call employee shall then call the rest of the on -call crew and they shall report directly to the City Yard. They shall retrieve a vacuum truck and a bobtail truck with appropriate sewer spill response equipment to the sewer spill location.
The intent is to reduce the response time required to move the necessary equipment and manpower to the sewer spill location and to minimize the sewer spill time. It is mandatory for the on-call water resources maintenance supervisor to attend the sewer spill site and take over the spill response operation upon his arrival.
During normal working hours all phone calls and coordination will be handled by a Public Works Agency (PWA) - Water Resources Maintenance Supervisor.
REVISION 2.0 (4/23) 7
Name Title Cell No.
Alex Reyes Water Services Supervisor (714) 328-7535
Mike Murrietta Water Services Supervisor (714) 328-5233 Edmundo Villela Water Quality Supervisor (714) 469-3244 Mike Garcia Water Services Crew Leader (714) 402-7042
David Carbajal Water Services Crew Leader (714) 328-7617 Jaime Arias Senior Civil Engineer (657) 322-8498
SEWER SYTEM OVERFLOW (EQUIPMENT REQUIRED):
Vacuum Truck Bobtail Truck
• Sand
• Traffic Control – equipment and devices
• Misc. Equipment (Shovels, sledge hammer, Manhole lift, etc.)
Steps to Take (After Hours):
1. Contact On-call supervisor (Immediately)
2. Call the On-call crew to report to City Yard, one to retrieve a vacuum truck and the other to retrieve a bobtail truck, and additional vacuum truck if needed
REVISION 2.0 (4/23) 8
CONTAIN THE SPILL
Upon arriving at the spill location, the on-call duty water employee shall call the on -call Supervisor/Crew Leader a second time and report the spill status. He shall then;
• Take immediate action to contain the spill to prevent sewage from entering storm drains, channels or other critical infrastructure.
• Establish perimeters and control zones with cones, barricades, vehicles or terrain. (KEEP OUT ZONE) at all times.
• Collect representative photos of the spill location and flow rates.
• Notify the appropriate authorities. Refer to Appendix B, Sanitary Sewer Overflow Reporting Guidelines.
Small spills can often be contained with sand berms. The additional personnel called out to assist the on-call duty water employee with the spill, shall make sure to have shovels and sand available on the bobtail truck used to respond to spills.
Medium spills may be contained with large sand berms, in strategic locations. Medium size spills may also require vacuuming and hauling the sewage or pumping the sewage to a sewer manhole for disposal, to prevent sewage from flowing over dikes. Use plastic sheeting to block storm drain inlets and other critical l ocations. Call the on-call Supervisor/Crew Leader for direction and support.
Large spills (spills more than a few gallons per minute that are likely to reach a storm drain inlet) in the public right of way may require various actions for containment, as follows:
• Build large sand berms to contain sewage.
• Block storm drains at inlets or at manholes at critical line intersection locations. • Block sewage flow in channels with berms.
• Call contractor for vacuum trucks to remove sewage off site and for disposal. (At the discretion of the water maintenance supervisor and/or crew leader on- call).
o Houston Harris, PCS at (909) 721-1756
• Use a sewer pump and hoses to pump to a sewer manhole. • Contact OCSD maintenance personnel for on-site support with vacuum trucks and other equipment as needed, if contractors are not available. • Contain the sewage in a low area.
• Estimate the rate of overflow.
• Call the on-call Supervisor/Crew Leader for direction and support.
REVISION 2.0 (4/23) 9
Private Spills, occur on private property, make all efforts to contain the spill on the private property. Dike the spillage before it enters the public right of way. If it isn’t practical to contain it on private property, contain the spill in the public right-of-way, before it enters a storm drain.
Steps to Take:
1. Contact callout supervisor a second time (Provide details and up to date information)
2. Contain spill
3. Establish perimeters and control zones (KEEP OUT ZONE)
4. Make the appropriate calls to the required authorities. Refer to Appendix A, Spill Reporting Guidelines.
REVISION 2.0 (4/23) 10
STOP THE SPILL
For spills originating in city owned sewer mains (public spills), clear the line blockage using the equipment and methods as you were trained to do using City vacuum trucks. In the event of an unusual situation, call the appropriate Supervisor /Crew Leader for support.
If the sewage spill originates on private property (private spills), contact the responsible person (usually a property manager or owner) and direct them to immediately hire a contractor to correct the problem and perform cleanup work. Take the necessary actions to prevent the sewage from entering the pub lic right of way or storm drain until the contractor corrects the problem such as a sand containment berm.
Determine the name and contact number of the responsible party for the private property (owner, property manager, etc.).
If the spill originates on private property, call the Orange County Health Care Agency.
If the property owner is not willing to comply, contact t he City of Santa Ana Code Enforcement division. Call them at (714) 667 -2780 (main line) or (714) 667 -2789; their hours of operation are 8:00 a.m. to 7:00 p.m. from Monday thru Thur sday. The City of Santa Ana Water Resources cannot shut off the water to the property unless directed by a supervisor.
REVISION 2.0 (4/23) 11
REPORT THE SPILL
It is the on-call water resources maintenance supervisor responsibility to document and report to all agencies of the existence of the spill.
After the spill is contained, all sewage spills, regardless of size, must be reported as soon as possible by phone to the Environmental Health Division of the Orange County Health Care Agency (OCHCA). During working hours, call OCHCA directly at (714) 433- 6419. After working hours and on the weekends, notify OCHCA by calling Orange County Control One (available 24 hours) at (714) 628 -7008. Let Orange County Control One know that you are making an official spill notification. If you need assistance from the Orange County Environmental Management Agency (OCEMA) or OCHCA, ask Control One to have OCEMA or OCHCA call you (see Emergency Contractors and Mutual Aid section on page 9). If the spill enters the storm drain system, contact Craig Foster at (714) 397-0759 or Samuel Villalobos at (714) 371-7489.
Note:
If you see the release of what may be hazardous material from private property, call the Orange County Fire Authority (OCFA) Hazmat Team at (714) 573-6250. The Orange County Health Care Agency should also be called at (714) 433 -6419 for this type of problem. Public Works Agency employees are not allowed to collect and or vacuum any substance other than sewage per OCSD rules and regulations.
Other agencies may also need to be contacted, depending on the conditions present.
Ask the on-call Supervisor/Crew Leader for direction.
A mandatory debriefing meeting for the spill will be held no later than 72 hours after the spill has occurred. This meeting will be held between Engineering, the Water Resources Maintenance Supervisor in charge during the spill and at least one crew member attending the spill activities.
Written reports of all public sewer spills must be prepared under the California Integrated Water Quality System ( CIWQS) system and by a City authorized user. The Sanitary Sewer Overflow (CIWQS Reporting Form) and authorized City users are provided in Appendix B. All CIWQS reporting must be done via the online reporting system (CIWQS) website. For the on-call duty employee it is very important to write down all relevant information such as dates, times, names of persons contacted , estimated flow rate and volume of sewage spilled, methods used to determine spill flow rate and volume estimates, names of people responding, etc. The on-call duty employee is also required to provide photographs of the sewer spill, complete the attached Spill (Field Form) (see Appendix C) and turn it in to the appropriate Supervisor. The on-call supervisor shall review and complete the form entirely.
REVISION 2.0 (4/23) 12
CATEGORY 1 SPILL REPORTING:
Category 1 Spills include: A spill of sewage of any volume from or caused by an enrollee’s sanitary sewer system 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 (e.g., inf iltration pit, percolation pond).
• A spill from an Enrollee-owned and/or operated lateral that discharges to a surface water.
Reporting
Reporting for all Category 1 Spills shall be made by the on-call duty water supervisor/crew leader person and shall be handled as follows:
1. If the Category 1 Spill, contact the California Office of Emergency Services (Cal OES) at 1-(800) 852-7550 WITHIN 2 HOURS after becoming aware of the spill and wait on the phone for a control number . Cal OES will make a report and fax it to the Regional Water Quality Control Board (RWQCB). Cal OES will provide a Control Number, be sure to record this number for spill reporting purposes. If the spill is very large or hazardous, Cal OES will contact RWQCB and County Health Care Agency (HCA) personnel.
2. For all Category 1 Spills, contact the City’s NPDES Manager (Craig Foster) at (714) 397 -0759. The spill must be docume nted as part of NPDES Permit requirements. The NPDES Manager may also be able to assist with spill response and contractor cleanup.
3. Submit a draft report within 3 business days of becoming aware of the spill and certify within 15 calendar days of spill end date. Enter data into the CIWQS Online spill Database (http://ciwqs.waterboards.ca.gov/).
4. Category 1 sewer spill certification will be perf ormed by the City’s Legally Responsible Officer (LRO).
CATEGORY 2 SPILL REPORTING:
Category 2 Spills are:
• 1,000 gallons or greater which:
REVISION 2.0 (4/23) 13
o Does not reach surface water.
o Enters a drainage conveyance system but is fully recovered and returned to the sanitary sewer system.
Reporting
Reporting for all Category 2 spills shall be made by the on -call duty employee, water maintenance supervisor, and or water maintenance crew leader and shall be handled as follows:
1. Call the Environmental Health Division of the Orange County Health Care Agency (OCHCA). During working hours, call OCHCA directly at (714) 433- 6419. After working hours and on the weekends, notify OCHCA by calling Orange County Control One (available 24 hours) at (714) 628-7008.
2. If the spill reached a City storm drain, contact the City’s NPDES Manager (Craig Foster) at (714) 397 -0759. The spill must be docume nted as part of NPDES Permit requirements. The NPDES Manager may also be able to assist with spill response and contractor cleanup.
3. Submit a draft report within 3 business days of becoming aware of the spill and certify within 15 calendar days of spill end date. Enter data into the CIWQS Online Spill Database (http://ciwqs.waterboards.ca.gov/).
4. Category 2 sewer spill certification will be performed by the City’s Legally Responsible Officer (LRO).
CATEGORY 3 SPILL REPORTING:
Category 3 spills are:
• Greater than 50 gallons and less than 1,000 gallons which:
o Does not reach a surface water
o Enters a drainage conveyance system but is fully recovered and returned to the sanitary sewer system .
Reporting
Reporting for all Category 3 spills shall be made by the on -call duty employee, water maintenance supervisor, and or water maintenance crew leader and shall be handled as follows:
1. Call the Environmental Health Division of the Orange County Health Care Agency (OCHCA). During working hours, call OCHCA directly at (714) 433- 6419. After working hours and on the weekends, notify OCHCA by calling Orange County Control One (available 24 hours) at (714) 628-7008.
REVISION 2.0 (4/23) 14
2. If the spill reached a City storm drain, contact the City’s NPDES Manager (Craig Foster) at (714) 397 -0759. The spill must be docume nted as part of NPDES Permit requirements. The NPDES Manager may also be able to assist with spill response and contractor cleanup.
3. Category 3 spills must be reported and certified through the California Integrated Water Quality System (CIWQS) within 30 days after the end of the calendar month in which the spill occurred.
4. Category 3 sewer spill certification wi ll be performed by the City’s Legally Responsible Officer (LRO).
CATEGORY 4 SPILL REPORTING:
Category 4 spills are:
• Less than 50 gallons which:
o Does not reach a surface water.
o Enters a drainage conveyance system but is fully recovered and returned to the sanitary sewer system.
Reporting
Reporting for all Category 4 spills shall be made by the on -call duty employee, water maintenance supervisor, and or water maintenance crew leader and shall be handled as follows:
1. Call the Environmental Health Division of the Orange County Health Care Agency (OCHCA). During working hours, call OCHCA directly at (714) 433- 6419. After working hours and on the weekends, notify OCHCA by calling Orange County Control One (available 24 hours) at (714) 628-7008.
2. If the spill reached a City storm drain, contact the City’s NPDES Manager (Craig Foster) at (714) 397 -0759. The spill must be docume nted as part of NPDES Permit requirements. The NPDES Manager may also be able to assist with spill response and contractor cleanup.
3. Category 4 spill volume and number estimate must be reported and certified monthly through the California Integrated Water Quality System (CIWQS) within 30 days after the end of the calendar month in which the spill occurred.
4. Category 4 spills must be reported and certified through the California Integrated Water Quality System (CIWQS) by February 1st after the end of the calendar year in which the spill occurred.
5. Category 4 sewer spill certification will be performed by the City’s Legally Responsible Officer (LRO).
REVISION 2.0 (4/23) 15
LATERAL SPILL REPORTING:
Lateral spills are:
• Any spills originating from privately owned or operated laterals. • Does not reach a surface water.
Reporting
Reporting for all Lateral spills shall be made by the on -call duty employee, water maintenance supervisor, and or water maintenance crew leader and shall be handled as follows:
1. Contact Orange County Health Care Agency at (714) 433-6419 as described above within 2 hours after containing the spill.
2. If the spill reache d a City storm drain, contact the City ’s NPDES Manager (Craig Foster) at (714) 397-0759. The spill must be docume nted as part of NPDES Permit requirements. The NPDES Manager may also be able to assist with spill response and contractor cleanup.
3. Statement of “Non-Category 1 Lateral Spills” must be reported and certified monthly through the California Integrated Water Quality System (CIWQS) within 30 days after the end of the calendar month in which the spill occurred.
4. Lateral spills must be reported and certified through the California Integrated Water Quality System (CIWQS) by February 1st after the end of the calendar year in which the spill occurred.
5. Category 4 sewer spill certification will be performed by the City’s Legally Responsible Officer (LRO).
SPILL TECHNICAL REPORT:
Submit within 45 calendar days after the end of any Category 1 Spill in which 50,000 gallons or greater are spilled to surface waters.
1. Conduct water quality sampling within 18 hours after initial spill notification for Category 1 Spills in which 50,000 gallons or greater are spilled to surface waters.
“NO SPILL” CERTIFICATION:
Statement c ertifying that no spills occurred within 30 calendar days of the end of the month in which no spills occurred.
REVISION 2.0 (4/23) 16
CLEAN UP THE SPILL
All spills must be cleaned up. Affected areas sh all be washed down and the wash water vacuumed and disposed of into the sewer and or hauled off to an appropriate waste facility (i.e.: Orange County Sanitation District, OCSD) . For large spills requiring additional equipment and manpower, the contract pumping company listed below can provide these services. Wet berm material, sandbags, etc. must be removed and disposed of properly.
Call the appropriate Supervisor for direction and support.
The on-call Supervisor/Crew Leader will direct any special requirements for spill cleanup, such as disinfection. Do not apply disinfectant until directed to do so by the on-call Supervisor/Crew Leader.
All water used to disinfect sh all be vacuumed and disposed of into the sewer and or hauled off to an appropriate waste facility. (i.e., Orange County Sanitation District, OCSD).
EMERGENCY CLEAN UP CONTRACTORS
The following contractor may be contacted to provide assistance with spill containment and cleanup:
o Houston Harris, PCS at (909) 721-1756
The contractor will provide vacuum trucks and other equipment as needed in emergency situations. They can also assist with clean up and disinfection of contaminated and affected spill areas. They are available for emergencies and on special situations at any time. Contact the on-call supervisor and or crew leader for assistance prior to calling the emergency contractors.
Orange County Environmental Management Agency (OCEMA)
The OCEMA is divided into a public works section and a water pollution section. Both sections provide access to OCEMA flood and road facilities, but each section has its own particular responsibilities.
The Public Works section of OCEMA provides equipment and crews as requested for emergency containment of water and waste. This section also provides detailed information regarding OCEMA flood control and road facilities.
The OCEMA Water Pollution section provides information regarding flood control and storm drain systems, and advice regarding characteristics of pollutants, containment measures and cleanup procedures. This section also provides some chemical analysis capabilities for water and waste, directs and monitors cleanup activities where OCEMA jurisdiction and facilities are involved, and provides access to rainfall and other weather data from the ALERT Flood Warning Network.
REVISION 2.0 (4/23) 17
To contact either OCEMA section, call Orange County Control One (available 24 hours) at (714) 628-7008 and inform them of the type of assistance that is needed.
Orange County Sanitation District (OCSD)
OCSD should be contacted whenever a spill involves an OCSD trunk sewer facility. They may provide assistance with vactor trucks and other equipment in emergency situations after attempts to use contract services prove unsuccessful. Contact OCSD at (714) 962- 2411.
City of Santa Ana NPDES Program
The City of Santa Ana owns and operates a Municipal S eparate Storm Sewer System (MS4) and is a co -permittee under the North Orange County Municipal NPDES Permit (order No. R8-2009-0030 as amended by Order No R8-2010-0062). The Permit requires the City to control the discharge of pollutants and respond to spills. The Permit also requires the City to report all sewage spills >1,000 gallons to the Regional Water Board within 24-hours.
The City of Santa Ana NPDES Program staff should be contacted whenever a spill reaches the storm drain system . Contact Craig Foster, NPDES Manager, at (714) 397- 0759, Samuel Villalobos , Stormwater Coordinator, at ( 714) 371-7489, or Katrina Traficante, Stormwater Coordi nator, at (714) 657 -6570. NPDES Program staff must document sewage spills per N PDES Permit requirements and may assist with spill response and contractor cleanup. Refer to Appendix E for a sub watershed drainage map.
APPROVED VOLUME CALCULATION METHODS
EYEBALL ESTIMATION METHOD (for spills 200 gallons or less)
1. Position yourself so that you have a vantage point where you can see the entire spill.
2. Imagine one or more buckets or barrels of water tipped over. Depending on the size of the spill, select a bucket or barrel size as a frame of reference.
3. Estimate the volume of the sewage spill by comparing it to your knowledge of the appearance of a known quantity of water.
4. If rainfall is a factor in the spill, estimate what amount of the spill is rainwater and subtract that from your initial estimation.
PHOTO COMPARISON METHOD
1. Refer to the photos in Appendix C to estimate the flow rate in gpm.
2. Calculate the gallons based on the flow rate and the total length of time of the spill (GPM X Time = Total Gallons)
AREA/VOLUME PONDED SEWAGE METHOD
REVISION 2.0 (4/23) 18
1. Draw an outline of the spill, and then break the footprint down into recognizable shapes. Then calculate the area of each shape
• Rectangle: Area = length X width
• Circle: Area = 3.14 X Radius2
• Triangle: Area = ½ X (Base X Height)
2. Measure the depth of the liquid in multiple areas to calculate the average depth.
3. Calculate the total volume in gallons.
(Area X Depth X 7.48) = Total Gallons
MANHOLE COVER FLOW MEASUREMENT
1. Refer to Appendix D for determining volume based on manhole pick holes and vent holes.
RECTANGLE
CIRCLE
TRIANGLE
LENGTH
BASE
W
I
D
T
H
H
E
I
G
H
T
DIAMETER
REVISION 2.0 (4/23) 19
Appendix A
Document Revision Log
REVISION 2.0 (4/23) 20
The following is a summary of revisions that have been made to this document.
Revision
No.
Section Description Date
Revised
By
0.0 All Document version 3.0 created 10/12 R. Rosas
1.0 Updated contact information
Added “Revision Log”
2.0 All Updated to comply with 2023 WDR
Requirements
4/26/2023 Jaime Arias
REVISION 2.0 (4/23) 21
Appendix B
Spill Reporting Guidelines
REVISION 2.0 (4/23) 22
Orange County Santa Ana Region
Spill Reporting Guidelines
Type of Spill Notification Monitoring Reporting Agency to Notify Category 1 -
Spills to Surface
Waters
Within two (2) hours
of knowledge of a
Category 1 spill of
1,000 gallons or
greater, discharging
or threatening to
discharge to surface
waters:
Notify COES and
obtain a Notification
Control Number
Spill-specific monitoring
Water quality sampling
of receiving water within
18 hours of initial
knowledge of spill of
50,000 gallons or
greater to surface
waters
-Draft Report within 3 business days of
knowledge of spill
-Certified Report within 15 calendar days of
spill end date
-Technical Report: certify within 45 calendar
days after end date for any spill 50,000 gal or
greater discharging to surface waters
-Amended Report within 90 calendar days
after spill end date
-COES
-OCHCA
-OC Public Works
-City
-CIWQS Sanitary
Sewer System
Database
Category 2 -
Spills of 1,000
Gallons or Greater
That Do Not
Discharge to
Surface Waters
As soon as practical Spill-specific monitoring -Draft Report within 3 business days of knowledge of spill
-Certified Report within 15 calendar days of
spill end date
-Amended Report within 90 calendar days
after spill end date
-OCHCA
-CIWQS Sanitary
Sewer System
Database
Category 3 -
Spills of 50 Gallons
or Greater and Less
than 1,000 Gallons
That Do Not
Discharge to
Surface Waters
As soon as practical Spill-specific monitoring -Certified Monthly Report within 30 calendar days of the end of the month in which the
spills occur
-Amended Report within 90 calendar days
after the Certified Spill Report due date
-OCHCA
-CIWQS Sanitary
Sewer System
Database
Category 4 -
Spills of Less than
50 Gallons That Do
Not Discharge to
Surface Waters
As soon as practical Spill-specific monitoring -Certified "Category 4 Spills" Statement with an estimate of number and total volume of all
Category 4 spills per month within 30
calendar days of the end of the month in
which the spills occurred
-Certified Report of all Category 4 spills by
February 1st after the end of the calendar
year in which the spills occur.
-OCHCA
-CIWQS Sanitary
Sewer System
Database
Lateral Spill -
Spills from Privately
Owned and/or
Operated Laterals
That Do Not
Discharge to
Surface Waters
As soon as practical Spill-specific monitoring -Certified "Non-Category 1 Lateral Spills" Statement within 30 calendar days of the end
of the month in which the spills occurred
-Certified Report of all private Lateral spills
by February 1st after the end of the calendar
year in which the spills occur.
-OCHA
-Public Works
-CIWQS Sanitary
Sewer System
Database
No Spills N/A N/A -Certified "No Spill" Statement within 30 calendar days of the end of the month
-CIWQS Sanitary
Sewer System
Database
REVISION 2.0 (04/23) 23
Appendix C
Spill Overflow
(Field Form)
REVISION 2.0 (04/23) 24
SPILL REPORTING FIELD FORM
NOTE: ALL On-Call personnel that are required to respond to sewer spills shall read and understand the complete Sewage Spill Procedures contained in the emergency callout manual. When responding to a sewage spill, the following general procedures should be followed in order:
1. NOTIFY SUPERVISOR AND OR ON CALL SUPERVISOR (IMMEDIATELY)
2. CONTAIN THE SPILL
3. STOP THE SPILL
4. CALL AND REPORT TO APPROPRIATE AUTHORITIES
5. CLEAN UP THE SPILL
6. FIELD REPORTS – ON CALL SUPERVISOR SHALL VERIFY AND FILL ALL DATA FOR THE SPILL.
BASIC SPILL INFORMATION:
1.) DATE: _____/_____/______
2.) SPILL LOCATION: __________________________________________________________ Address / Street Intersection Spill Point (MH#, CO, etc.)
3.) TIME SPILL STARTED (If known): _________________
4) TIME CITY WAS NOTIFIED: ______________
5.) OPERATOR ARRIVAL TIME: ________________
6.) PRIVATE PROPERTY (Y OR N): _____________
7.) SPILL END TIME: _______________________
8.) ESTIMATED SPILL FLOW RATE: ______________ (gpm) (See Appendix C) (Number of pick holes where water is coming out _______________ Height of water spout out of the MH ________________inches)
9.) ESTIMATED SPILL VOLUME LOST: ___________________ (GAL.)
10.) ESTIMATED SPILL VOLUME RECOVERED: _____________(GAL.)
11.) TOTAL SPILL (VOLUME) (FLOW RATE X MIN):__________________________(GAL.)
12.) SPILL REASON/CAUSE: ______________________________________________________
REVISION 2.0 (04/23) 25
SPILL REPORTING
TYPE OF SPILL: _______________________________________
TYPE OF
SPILL
DESCRIPTION AGENCY(S) TO
NOTIFY BY PHONE
NOTIFICATON TIME
FRAME
Category 1 1. Spill that has entered a storm drain inlet or channel and not recovered
1. Cal OES
2. OC Public Works
3. Santa Ana NPDES
1. Within 2 Hours
2. Immediate
3. Immediate
Category 2 2. Spill that is greater less than 1,000
gallons and has been contained prior to
reaching a storm drain or channel or fully
recovered from storm drain
1. OCHCA
2. Santa Ana NPDES
1. Within 2 Hours
2. Immediate
Category 3 3. Spill that is less than 1,000 gallons and has been contained prior to reaching a
storm drain or channel or fully recovered
from storm drain
1. OCHCA
2. Santa Ana NPDES
1. Within 2 Hours
2. Immediate
Private
Lateral
4. Any spill that originates on private
property
1. OCHCA
2. Santa Ana NPDES
1. Within 2 Hours
2. Immediate
NOTIFICATION LIST PERSON TIME DATE INITIALS
Agency Normal Hours After Hours CONTACTED
OCHCA
(Health Care
Agency)
(714) 433-6419
(714) 628-7008
OC
Public
Works
(714) 955-0600
(714) 628-7008
Santa
Ana
NPDES
(714) 647-5659
(714) 397-0759
Cal OES (800) 852-7550 (800) 852-7550
Cal OES Control Number (if Category 1 and greater than 1,000 gal):
OPERATOR/MAINTENANCE PERSON RESPONDING TO SPILL: _________________________
________________________________ ___________________________________ ________________ (Name) (Signature) (Date)
REVISION 2.0 (04/23) 26
THE FOLLOWING IS TO BE COMPLETED BY THE ON-CALL SUPERVISOR
SPILL CERTIFICATION
Did the sewer spill enter a storm drain pipe (Y or N) ______________________
Location of storm drain pipe ________________________________________
Was the sewer spill fully recovered and returned to the sanitary sewer system or disposed of properly (Y or N) ____________________
Did Sewer Spill enter a drainage channel and/or surface water (Y or N) ___________________ (EX: Creek, River, or Ocean)
Name & location of drainage channel and/or surface water ____________________________
Was Cal OES Contacted (for Category 1 and greater than 1,000 gallons) (Y or N) __________
Cal OES Control Number __________________________________
Was Santa Ana NPDES Contacted (for all Category 1 and sewer spills that enter the storm drain)
(Y or N) ________________
NAME OF ON-CALL SUPERVISOR ______________________________________
SIGNED: ________________________________ DATE: ____/____/____ (On-Call Supervisor) (MM/DD/YY)
REVISION 2.0 (04/23) 27
POST – SEWER SPILL INVESTIGATION
Spill Date: ______________________ Spill Location:___________________________
Spill Type: Spill Category: __________________________ Private
Public
Post- Spill (Work Plan):
__________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ Existing Sewer Video (Y/N):_____________________
Spill Cause/Reason (findings):
__________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________
Corrective Measures (Check Applicable Box):
InfraMAP (Add Spill) FOG Program (Enforcement)
Pipe (Spot Replacement) M.H. Rehabilitation
Monitoring (Smart Cover) Other (Specify)
____________________________________
____________________________________
____________________________________
Root Control (Foam)
Pipe Lining
Closed Circuit Television (CCTV)
REVISION 2.0 (04/23) 28
Appendix D
(Volume Estimation Examples)
Collection System Collaborative Benchmarking Group
Best Practices for Sanitary Sewer Overflow (SSO) Prevention and Response Plan
Attachment D - Sample Templates for SSO Volume Estimation
Disclaimer:
This sanitary sewer overflow table was developed by Ed Euyen, Civil Engineer, P.E. No. 33955, California, for County Sanitation District 1. This table is provided as an example. Other Agencies may want to develop their own estimating tables.
TABLE 'A'
ESTIMATED SSO FLOW OUT OF M/H WITH COVER IN PLACE
24" COVER 36" COVER
Height of Min. Sewer Height of Min. Sewer
spout above S S O FLO W size in which spout above S S O FLOW size in which M/H rim Q these flows M/H rim Q these flows
H in inches in gpm in MGD are possible H in inches in gpm in MGD are possible 1/4 1 0.001 1/4 1 0.002
1/2 3 0.004 1/2 4 0.006
3/4 6 0.008 3/4 8 0.012
1 9 0.013 1 13 0.019
1 1/4 12 0.018 1 1/4 18 0.026
1 1/2 16 0.024 1 1/2 24 0.035
1 3/4 21 0.030 1 3/4 31 0.044
2 25 0.037 2 37 0.054
2 1/4 31 0.045 2 1/4 45 0.065
2 1/2 38 0.054 2 1/2 55 0.079
2 3/4 45 0.065 2 3/4 66 0.095
3 54 0.077 3 78 0.113
3 1/4 64 0.092 3 1/4 93 0.134
3 1/2 75 0.107 3 1/2 109 0.157
3 3/4 87 0.125 3 3/4 127 0.183
4 100 0.145 4 147 0.211
4 1/4 115 0.166 4 1/4 169 0.243
4 1/2 131 0.189 4 1/2 192 0.276
4 3/4 148 0.214 4 3/4 217 0.312 6"
5 166 0.240 5 243 0.350
5 1/4 185 0.266 5 1/4 270 0.389
5 1/2 204 0.294 5 1/2 299 0.430
5 3/4 224 0.322 6" 5 3/4 327 0.471
6 244 0.352 6 357 0.514
6 1/4 265 0.382 6 1/4 387 0.558 8"
6 1/2 286 0.412 6 1/2 419 0.603
6 3/4 308 0.444 6 3/4 451 0.649
7 331 0.476 7 483 0.696
7 1/4 354 0.509 7 1/4 517 0.744
7 1/2 377 0.543 7 1/2 551 0.794
7 3/4 401 0.578 8" 7 3/4 587 0.845 10"
8 426 0.613 8 622 0.896
8 1/4 451 0.649 8 1/4 659 0.949
8 1/2 476 0.686 8 1/2 697 1.003
8 3/4 502 0.723 8 3/4 734 1.057
9 529 0.761 9 773 1.113
Collection System Collaborative Benchmarking Group
Best Practices for Sanitary Sewer Overflow (SSO) Prevention and Response Plan
The formula used to develop Table A measures the maximum height of the water coming out of the maintenance hole above the rim. The formula was taken from hydraulics and its application by A.H. Gibson (Constable & Co. Limited).
Example Overflow Estimation:
The maintenance hole cover is unseated and slightly elevated on a 24” casting.
The maximum height of the discharge above the rim is 5 ¼ inches. According to Table A, these conditions would yield an SSO of 185 gallons per minute.
This sanitary sewer overflow drawing wa s developed by Debbie Myers, Principal Engineering Technician, for Ed Euyen, Civil Engineer, P.E. No. 33955, California, of County Sanitation District 1.
FLOW OUT OF M/H WITH COVER IN PLACE
Height to be measured
Collection System Collaborative Benchmarking Group
Best Practices for Sanitary Sewer Overflow (SSO) Prevention and Response Plan
Disclaimer:
This sanitary sewer overflow table was developed by Ed Euyen, Civil Engineer, P.E. No. 33955, California, for County Sanitation District 1. This table is provided as an example. Other Agencies may want to develop their own estimating tables.
TABLE 'B'
ESTIMATED SSO FLOW OUT OF M/H WITH COVER REMOVED
24" FRAME 36" FRAME
Water Min. Sewer Water Min. Sewer
Height above S S O FLOW size in which Height above S S O FLOW size in which M/H frame Q these flows M/H frame Q these flows
H in inches in gpm in MGD are possible H in inches in gpm in MGD are possible 1/8 28 0.04 1/8 49 0.07
1/4 62 0.09 1/4 111 0.16
3/8 111 0.16 3/8 187 0.27 6"
1/2 160 0.23 1/2 271 0.39
5/8 215 0.31 6" 5/8 361 0.52 8"
3/4 354 0.51 8" 3/4 458 0.66
7/8 569 0.82 10" 7/8 556 0.8 10"
1 799 1.15 12" 1 660 0.95 12"
1 1/8 1,035 1.49 1 1/8 1,035 1.49
1 1/4 1,340 1.93 15" 1 1/4 1,486 2.14 15"
1 3/8 1,660 2.39 1 3/8 1,951 2.81
1 1/2 1,986 2.86 1 1/2 2,424 3.49 18"
1 5/8 2,396 3.45 18" 1 5/8 2,903 4.18
1 3/4 2,799 4.03 1 3/4 3,382 4.87
1 7/8 3,132 4.51 1 7/8 3,917 5.64 21"
2 3,444 4.96 21" 2 4,458 6.42
2 1/8 3,750 5.4 2 1/8 5,000 7.2 24"
2 1/4 3,986 5.74 2 1/4 5,556 8
2 3/8 4,215 6.07 2 3/8 6,118 8.81
2 1/2 4,437 6.39 2 1/2 6,764 9.74
2 5/8 4,569 6.58 24" 2 5/8 7,403 10.66
2 3/4 4,687 6.75 2 3/4 7,972 11.48 30"
2 7/8 4,799 6.91 2 7/8 8,521 12.27
3 4,910 7.07 3 9,062 13.05
3 1/8 9,604 13.83
3 1/4 10,139 14.6
3 3/8 10,625 15.3 36"
3 1/2 11,097 15.98
3 5/8 11,569 16.66
3 3/4 12,035 17.33
3 7/8 12,486 17.98
4 12,861 18.52
4 1/8 13,076 18.83
4 1/4 13,285 19.13
4 3/8 13,486 19.42
Collection System Collaborative Benchmarking Group
Best Practices for Sanitary Sewer Overflow (SSO) Prevention and Response Plan
The formula used to develop Table B for estimating SSO’s out of maintenance holes without covers is based on discharge over curved weir -- bell mouth spillways for 2” to 12” diameter pipes. The formula was taken from hydraulics and its application by A.H. Gibson (Constable & Co. Limited).
Example Overflow Estimation:
The maintenance hole cover is off and the flow coming out of a 36” frame maintenance hole at one inch (1”) height will be approximately 660 gallons per minute.
This sanitary sewer overflow drawing was developed by Debbie Myers, Principal Engineering Technician, for Ed Euyen, Civil Engineer, P.E. No. 33955, California, of County Sanitation District 1.
FLOW OUT OF M/H WITH COVER REMOVED (TABLE "B")
Height to be measured
Collection System Collaborative Benchmarking Group
Best Practices for Sanitary Sewer Overflow (SSO) Prevention and Response Plan
Note
: This chart is based on a 7/8 inch diameter pick hole
Disclaimer: This sanitary sewer overflow table was developed by Ed Euyen, Civil Engineer, P.E. No. 33955, California, for County Sanitation District 1. This table is provided as an example. Other Agencies may want to develop their own estimating tables.
TABLE 'C'
ESTIMATED SSO FLOW OUT OF M/H PICK HOLE
Height of SSO Height of SSO
spout above FLOW spout above FLOW
M/H cover Q M/H cover Q
H in inches in gpm H in inches in gpm
1/8 1.0 5 1/8 6.2
1/4 1.4 5 1/4 6.3
3/8 1.7 5 3/8 6.3
1/2 1.9 5 1/2 6.4
5/8 2.2 5 5/8 6.5
3/4 2.4 5 3/4 6.6
7/8 2.6 5 7/8 6.6
1 2.7 6 6.7
1 1/8 2.9 6 1/8 6.8
1 1/4 3.1 6 1/4 6.8
1 3/8 3.2 6 3/8 6.9 Unrestrained
1 1/2 3.4 6 1/2 7.0 M/H cover will
1 5/8 3.5 6 5/8 7.0 start to lift
1 3/4 3.6 6 3/4 7.1
1 7/8 3.7 6 7/8 7.2
2 3.9 7 7.2
2 1/8 4.0 7 1/8 7.3
2 1/4 4.1 7 1/4 7.4
2 3/8 4.2 7 3/8 7.4
2 1/2 4.3 7 1/2 7.5
2 5/8 4.4 7 5/8 7.6
2 3/4 4.5 7 3/4 7.6
2 7/8 4.6 7 7/8 7.7
3 4.7 8 7.7
3 1/8 4.8 8 1/8 7.8
3 1/4 4.9 8 1/4 7.9
3 3/8 5.0 8 3/8 7.9
3 1/2 5.1 8 1/2 8.0
3 5/8 5.2 8 5/8 8.0
3 3/4 5.3 8 3/4 8.1
3 7/8 5.4 8 7/8 8.1
4 5.5 9 8.2
4 1/8 5.6 9 1/8 8.3
4 1/4 5.6 9 1/4 8.3
4 3/8 5.7 9 3/8 8.4
4 1/2 5.8 9 1/2 8.4
4 5/8 5.9 9 5/8 8.5
4 3/4 6.0 9 3/4 8.5
4 7/8 6.0 9 7/8 8.6
5 6.1 10 8.7
Collection System Collaborative Benchmarking Group
Best Practices for Sanitary Sewer Overflow (SSO) Prevention and Response Plan
The formula used to develop Table C is Q=CcVA, where Q is equal to the quantity of the flow in gallons per minute, Cc is equal to the coefficient of contraction (.63), V is equal to the velocity of the overflow, and A is equal to the area of the pick hole.
2 If all units are in feet, the quantity will be calculated in cubic feet per second, which when multiplied by 448.8 will give the answer in gallons per minute. (One cubic foot per second is equal to 448.8 gallons per minute, hence this conversion method).
Example Overflow Estimation:
The maintenance hole cover is in place and the height of water coming out of the pick hole seven-eighths of an inch in diameter (7/8") is 3 inches (3”). This will produce an SSO flow of approximately 4.7 gallons per minute.
This sanitary sewer overflow drawing was developed by Debbie Myers, Principal Engineering Technician, for Ed Euyen, Civil Engineer, P.E. No. 33955, California, of County Sanitation District 1.
2 Velocity for the purposes of this formula is calculated by using the formula h = v squared / 2G, where h is equal to the height of the overflow, v is equal to velocity, and G is equal to the acceleration of gravity.
FLOW OUT OF VENT OR PICK HOLE (TABLE "C")
Height to be measured
Collection System Collaborative Benchmarking Group
Best Practices for Sanitary Sewer Overflow (SSO) Prevention and Response Plan
Flow Estimation Pictures
REVISION 2.0 (04/23) 29
Appendix E
(Drainage Map)
APPENDIX D
CITY OF SANT A ANA MUNICIP AL CODE
CHAPTER 39
PART II - THE CODE
Chapter 39 WATER AND SEWERS
Santa Ana, California, Code of Ordinances Created: 2025-01-29 11:22:15 [EST] (Supp. No. 30)