CITY OF MANHATTAN BEACH
UTILITIES DIVISION
Sewer System Management Plan
Update
March 18, 2022
Prepared under the supervision of
Tyrone Peter, P.E.
Prepared by Willdan Engineering
2401 East Katella Avenue, Suite 300,
Anaheim, CA 92806
Phone 714-978-8200 Fax 714-940-4920
City of Manhattan Beach SSMP
2 Table of Contents
INTRODUCTION ....................................................................................................................................................................... 9 BACKGROUND ........................................................................................................................................................................ 9 I. ORGANIZATION OF SSMP ...................................................................................................................................................... 11 II. CITY SERVICE AREA AND SEWER SYSTEM ................................................................................................................................... 11 CHAPTER 1 GOALS ................................................................................................................................................................. 12
1.1 REGULATORY REQUIREMENTS ............................................................................................................................................. 12
1.2 SSMP GOALS .................................................................................................................................................................. 12
1.3 MONITORING AND REPORTING PLAN REQUIREMENTS ............................................................................................................. 13
1.4 REFERENCES .................................................................................................................................................................... 13 CHAPTER 2 ORGANIZATION .................................................................................................................................................. 14
2.1 REGULATORY REQUIREMENTS ............................................................................................................................................. 14
2.2 AUTHORIZED REPRESENTATIVE ............................................................................................................................................ 14
2.3 MANAGEMENT AND ORGANIZATIONAL STRUCTURE ................................................................................................................. 14
2.4 SSO REPORTING CHAIN OF COMMUNICATION ....................................................................................................................... 17
2.5 MONITORING AND REPORTING PLAN REQUIREMENTS ............................................................................................................. 17
2.6 REFERENCES .................................................................................................................................................................... 17 CHAPTER 3 LEGAL AUTHORITY .............................................................................................................................................. 21
3.1 REGULATORY REQUIREMENTS ............................................................................................................................................. 21
3.2 ILLICIT DISCHARGE PREVENTION .......................................................................................................................................... 21
3.3 DESIGN, CONSTRUCTION, AND INSTALLATION REQUIREMENTS .................................................................................................. 21
3.4 LATERAL MAINTENANCE ACCESS ......................................................................................................................................... 22
3.5 FATS, OILS AND GREASE DISCHARGE LIMITATIONS .................................................................................................................. 22
3.6 MONITORING AND REPORTING PLAN REQUIREMENTS ............................................................................................................. 22
3.7 ENFORCEMENT PROVISIONS ............................................................................................................................................... 22
3.8 REFERENCES .................................................................................................................................................................... 23 CHAPTER 4 OPERATION AND MAINTENANCE PROGRAM ...................................................................................................... 25
4.1 REGULATORY REQUIREMENTS ............................................................................................................................................. 25
4.2 COLLECTION SYSTEM MAPPING ........................................................................................................................................... 25
4.3 ROUTINE AND PREVENTIVE MAINTENANCE PROGRAM ............................................................................................................. 26
4.4 REHABILITATION AND REPLACEMENT PLAN ............................................................................................................................ 27
4.5 STAFF AND CONTRACTOR TRAINING ..................................................................................................................................... 28
4.6 EQUIPMENT AND REPLACEMENT PART INVENTORY .................................................................................................................. 29
4.7 MONITORING AND REPORTING PLAN REQUIREMENTS ............................................................................................................. 29
4.8 REFERENCES .................................................................................................................................................................... 30 CHAPTER 5 DESIGN AND PERFORMANCE PROVISIONS.......................................................................................................... 31
5.1 REGULATORY REQUIREMENTS ............................................................................................................................................. 31
5.2 DESIGN AND CONSTRUCTION STANDARDS AND SPECIFICATIONS ................................................................................................. 31
5.3 PROCEDURES AND STANDARDS FOR INSTALLATION, REHAB, AND REPAIR PROJECTS ....................................................................... 31
5.4 MONITORING AND REPORTING PLAN REQUIREMENT ............................................................................................................... 32 CHAPTER 6 OVERFLOW EMERGENCY RESPONSE PROGRAM (OERP) ...................................................................................... 33
6.1 REGULATORY REQUIREMENTS ............................................................................................................................................. 33
6.2 NOTIFICATION PROCEDURES FOR SSOS ................................................................................................................................. 33
6.3 RESPONSE PROGRAM FOR SSOS .......................................................................................................................................... 34
6.4 NOTIFICATION TO REGULATORY AGENCIES ............................................................................................................................. 35
6.5 STAFF TRAINING FOR EMERGENCY RESPONSE ......................................................................................................................... 35 City of Manhattan Beach SSMP
3 6.6 EMERGENCY OPERATION PROCEDURES ................................................................................................................................. 36
6.7 CONTAINMENT AND PREVENTION OF SSOS ........................................................................................................................... 36 CHAPTER 7 FATS, OILS AND GREASE (FOG) CONTROL PROGRAM .......................................................................................... 37
7.1 REGULATORY REQUIREMENTS ............................................................................................................................................. 37
7.2 IMPLEMENTATION PLAN AND SCHEDULE FOR PUBLIC OUTREACH ............................................................................................... 37
7.3 PLAN AND SCHEDULE FOR DISPOSAL OF FOG ......................................................................................................................... 38
7.4 LEGAL AUTHORITY TO PROHIBIT FOG DISCHARGES ................................................................................................................. 38
7.5 DESIGN AND INSTALLATION OF GREASE REMOVAL DEVICES ....................................................................................................... 38
7.6 AUTHORITY FOR INSPECTION OF GREASE PRODUCING FACILITIES ................................................................................................ 38
7.7 IDENTIFICATION AND SCHEDULING FOR MAINTENANCE OF SEWER SECTIONS PRONE TO FOG BLOCKAGES ......................................... 38
7.8 DEVELOPMENT AND IMPLEMENTATION OF SOURCE CONTROL MEASURES FOR SEWER SECTIONS PRONE TO FOG BLOCKAGES ............... 39
7.9 MONITORING AND REPORTING PLAN REQUIREMENTS ............................................................................................................. 39
7.10 REFERENCES .................................................................................................................................................................... 39 CHAPTER 8 SYSTEM EVALUATION AND CAPACITY ANALYSIS PLAN (SECAP) .......................................................................... 40
8.1 REGULATORY REQUIREMENTS ............................................................................................................................................. 40
8.2 SANITARY SEWER SYSTEM EVALUATION ................................................................................................................................ 40
8.3 DESIGN CRITERIA .............................................................................................................................................................. 41
8.4 CAPACITY ENHANCEMENT MEASURES ................................................................................................................................... 41
8.5 COMPLETION SCHEDULE .................................................................................................................................................... 43
8.6 REFERENCES .................................................................................................................................................................... 44 CHAPTER 9 MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS ...................................................................... 45
9.1 REGULATORY REQUIREMENTS ............................................................................................................................................. 45
9.2 INFORMATION MAINTENANCE ............................................................................................................................................ 45
9.3 SSMP IMPLEMENTATION AND EFFECTIVENESS MONITORING .................................................................................................... 46
9.4 ASSESSMENT OF PREVENTATIVE MAINTENANCE PROGRAM ....................................................................................................... 47
9.5 PROGRAM MODIFICATIONS/UPDATES .................................................................................................................................. 47
9.6 IDENTIFICATION AND ILLUSTRATION OF SSO TRENDS ............................................................................................................... 48
9.7 MONITORING AND REPORTING PLAN REQUIREMENTS ............................................................................................................. 48 CHAPTER 10 SSMP PROGRAM AUDITS .................................................................................................................................. 49
10.1 REGULATORY REQUIREMENTS ............................................................................................................................................. 49
10.2 SSMP PROGRAM AUDITS .................................................................................................................................................. 49
10.3 MONITORING AND RECORDING ........................................................................................................................................... 50
10.4 SELF-MONITORING AND PLAN MODIFICATION ....................................................................................................................... 50 CHAPTER 11 COMMUNICATION PROGRAM .......................................................................................................................... 52
11.1 REGULATORY REQUIREMENTS ............................................................................................................................................. 52
11.2 PUBLIC COMMUNICATION .................................................................................................................................................. 52
11.3 MONITORING AND REPORTING PLAN REQUIREMENTS ............................................................................................................. 52 APPENDICES .......................................................................................................................................................................... 53 APPENDIX A – STATE WATER RESOURCES CONTROL BOARD ORDER NO. 2006-003-DWQ STATEWIDE GENERAL WDR FOR SANITARY SEWER SYSTEMS ...................................................................................................................................................................................... 54 APPENDIX B – STATE WATER RESOURCES CONTROL BOARD ORDER NO. 2013-0058-EXEC AMENDING MONITORING AND REPORTING PROGRAM FOR STATEWIDE GENERAL WDR FOR SANITARY SEWER SYSTEMS ........................................................................................................... 75
APPENDIX C - FACT SHEET AMENDING MONITORING AND REPORTING PROGRAM FOR STATEWIDE GENERAL WDR FOR SANITARY SEWER SYSTEMS .................................................................................................................................................................................................. 91 APPENDIX D – SSMP SAMPLE CHANGE LOG ...................................................................................................................................... 95 APPENDIX E – SELF-AUDIT .............................................................................................................................................................. 96 APPENDIX F – FOG FACILITIES ....................................................................................................................................................... 106 APPENDIX G – STANDARD OPERATING PROCEDURES .......................................................................................................................... 111 City of Manhattan Beach SSMP
4 APPENDIX H – EXISTING PUMP INVENTORY ...................................................................................................................................... 128 APPENDIX I – HOT SPOT CLEANING ................................................................................................................................................. 130 APPENDIX 1 – CODE OF ORDINANCE, TITLE 5 – SANITATION AND HEALTH, CHAPTER 5.36 – SEWERS, SEWAGE DISPOSAL – CITY SEWAGE SYSTEM ................................................................................................................................................................................................ 136 APPENDIX 2 – CODE OF ORDINANCE, TITLE 5 – SANITATION AND HEALTH, CHAPTER 5.38 – FATS, OILS AND GREASE MANAGEMENT AND DISCHARGE CONTROL ................................................................................................................................................................... 138 APPENDIX 3 – EQUIPMENT AND REPLACEMENT PARTS INVENTORY........................................................................................................ 149 APPENDIX 4 – WASTEWATER MASTER PLAN – SECTION 4, CRITERIA ..................................................................................................... 151 APPENDIX 5 – WASTEWATER MASTER PLAN – SECTION 6, EXISTING PUMP STATIONS .............................................................................. 164 APPENDIX 6 – WASTEWATER MASTER PLAN – SECTION 7, HYDRAULIC MODEL & COLLECTION SYSTEM CAPACITY ANALYSIS ........................... 193 APPENDIX 7 – WASTEWATER MASTER PLAN – SECTION 8, CONDITION ASSESSMENT ............................................................................... 200 APPENDIX 8 – WASTEWATER MASTER PLAN – SECTION 9, OPERATION AND MAINTENANCE ...................................................................... 224 APPENDIX 9 – WASTEWATER MASTER PLAN – SECTION 10, CAPITAL IMPROVEMENT ............................................................................... 260 APPENDIX 10 – RESOLUTION NO. 21-0051 ..................................................................................................................................... 274 APPENDIX 11 – FY 2021-2022 THROUGH 2025-2026 CAPITAL IMPROVEMENT PLAN ........................................................................... 278 APPENDIX 12 – SSO REPORT FORM ............................................................................................................................................... 308 APPENDIX 13 – SPILL MAP & REPORTS ........................................................................................................................................... 315 APPENDIX 14 – NOTICE OF INSPECTION – CITY OF MANHATTAN BEACH COLLECTION SYSTEM .................................................................... 345 APPENDIX 15 - NOTICE OF VIOLATION – CITY OF MANHATTAN BEACH COLLECTION SYSTEM ...................................................................... 380 APPENDIX 16 – NOTICE OF VIOLATION RESPONSE ............................................................................................................................. 385
LIST OF FIGURES
Figure 1 – Organization Chart of Sewer Staff Figure 2 – SSO Reporting Flow Chart
LIST OF TABLES
Table 1 – Sewer Staff Contact Information
Table 2 – Contact Numbers for SSO Chain of Communication Table 3 – Legal Authority Checklist
City of Manhattan Beach SSMP
5 Definitions, Acronyms, and Abbreviations
Best Management Practices (BMP) – Refers to the procedures employed in commercial kitchens to minimize the quantity of grease that is discharged to the sanitary sewer system.
Blockage – A build-up of debris in the sewer, which stops the flow of wastewater and allows the water to back up behind the stoppage, sometimes causing an overflow.
California Integrated Water Quality System (CIWQS) – Refers to the State Water Resources Control Board online electronic reporting system that is used to report SSOs, certifies completion of the SSMP, and provides information on the sanitary sewer system.
California Office of Emergency Services (OES) – Responsible for the coordination of overall state agency response to disasters. Assuring the state’s readiness to respond to, recover from all hazards and assisting local government in their emergency preparedness, response, recovery, and mitigation.
https://www.caloes.ca.gov/cal-oes-divisions
Capital Improvement Program (CIP) – Refers to the document that identifies planned capital improvements to the district’s wastewater collection system.
Closed-Circuit Television (CCTV) – The process and equipment that is used to internally inspect the condition of gravity sewers.
California Water and Environmental Association (CWEA) - CWEA the State Water board committed to re -designing the CIWQS3 Online database to allow “event” based SSO reporting versus the original “location “based reporting. http://www.cwea.org/
Enrollee – A public entity that owns or operates a sanitary sewer system and has submitted a complete and approved application for coverage under the SSS WDR.
Fats, Oils, and Grease (FOG) – Refers to fats, oils, and grease typically associated with food preparation and cooking activities that can cause blockages in the sanitary sewer system.
Food Service Establishment (FSE) – Refers to commercial or industrial facilities where food is handled/prepared/served that discharge to the wastewater collection system.
Geographical Information System (GIS) – A database linked with mapping, which includes various layers of information used by government officials. Examples of information found on a GIS can include a sewer map and sewer features such as pipe location, diameter, material, condition, and last date cleaned or repaired. The GIS also typically contains base information such as streets and parcels.
GWDR – General Waste Discharge Requirements – Similar to a NPDES permit but with significant differences. A WDR is an authorization to discharge waste with certain City of Manhattan Beach SSMP
6 conditions, which can be issued on an individual basis or to a group of dischargers. WDR's do not sunset, unlike NPDES permits, and are most issued by the Regional Water Boards.
The Statewide General WDR for Sanitary Sewer Systems was adopted by the SWCRB and will be implemented by the Regional Water Boards and SWRCB.
Infiltration/Inflow (I/I) – Infiltration is generally considered to be extraneous water that enters the sewer system over longer periods of time, such as groundwater seepage through cracks in the sewer. Inflow is generally considered to be extraneous water that enters the system as a direct result of a rain event, such as through defects in the sewer.
While it is impossible to control all I/I, it is certainly desirable to reduce I/I when cost - effective.
Legally Responsible Official (LRO)
Los Angeles County Department of Health (LACDH)
Los Angeles County Sanitation District (LACSD)
Lower Lateral – That portion of a lateral usually from the property line or easement line to the sewer main. Enrollees may or may not be responsible for maintenance of this portion of the lateral. If not, the lower lateral is owned and maintained by the property its serves.
Manhole – Refers to an engineered structure that is intended to provide access to a sanitary sewer for maintenance and inspection.
Monitoring and Reporting Program (MRP) – Refers to the State Water Resources Control Board Monitoring and Reporting Program No. 2006 -0003-DWQ, and Order No.
WQ2013-0058-EXEC.
including all future revisions
National Association of Sewer Service Company (NASSCO) – Sets industry standards for the assessment, maintenance and rehabilitation of underground infrastructure, and to assure the continued acceptance and growth of trenchless technologies. Provides viable solutions through education, technical resources, and advocacy
National Pollution Disc harge Elimination System (NPDES) – An NPDES permit is typically a license for a facility to discharge a specified amount of a pollutant into a receiving water under certain conditions. Permits may also authorize facilities to process, incinerate, landfill, or beneficially use sewage sludge.
NGO – Non-governmental organization.
Online SSO Reporting System – Refers to the California Integrated Water Quality System (CIWQS).
Operations and Maintenance (O&M ) – WDR requirements for Sanitary Sewer Management Plan to maintain maximum flow to the wastewater treatment plant and to City of Manhattan Beach SSMP
7 maximize either in-line storage capacity or detention upstream of the system inlets. There are several key components of an O&M program that a municipality/authority must provide to ensure proper O&M and to meet the minimum control requirement
Overflow Emergency Response Plan (OERP) – The purpose of the OERP is to supports an orderly and effective response to sanitary sewer overflows (SSOs) . It provides guideline for City personnel to follow in responding to, cleaning up, and reporting SSOs that may occur within the City’s service area.
Percent Reached Surface Water – Volume of sewage discharged from a sanitary sewer system or private lateral or collection system estimated to have reached surface water divided by the total volume of sewage discharged.
Percent Recovered – Volume of sewage discharged that was disposed of properly, divided by the total volume of sewage discharged.
Private Lateral – Privately owned sewer service lateral.
Private Lateral Sewage Discharge (PLSD) – Sewage discharges caused by blockages or other problems within privately owned laterals, collection systems or other private sewer assets that are tribut ary to the reporting Enrollee’s sanitary sewer system. Reports of these events may be submitted by Enrollees on a voluntary basis but are not the Enrollee’s responsibility unless caused by issues in the main line or because of other Enrollee activity. Normally, this type of sewage discharge is the responsibility of the private lateral, private asset, or collection system owner.
Pipeline Assessment and Certification Program (PACP)
Regional Water Quality Control Board (RWQCB)
Sanitary Sewer Overflow (SSO) – Any overflow, spill, release, discharge or diversion of untreated or partially treated wastewater from a sanitary sewer system. SSOs include:
(i) Overflows or releases of untreated or partially treated wastewater that reach waters of the United States.
(ii) Overflows or releases of untreated or partially treated wastewater that do not reach waters of the United States; and
(iii) Wastewater backups into buildings and on private property that are caused by blockages or flow conditions within the publicly owned portion of a sanitary sewer system.
Sanitary Sewer System – Any system of pipes, pump stations, sewer lines, or other conveyances, upstream of a WWTP head works and which is comprised of more than one mile of pipes and sewer lines, used to collect, and convey wastewater to a publicly owned treatment facility.
Sanitary Sewer System Waste Discharge Requirements (SSS WDRs) – An Order to develop a regulatory mechanism to provide a consistent statewide approach for reducing sanitary sewer overflows
City of Manhattan Beach SSMP
8 Sanitary Sewer Overflow Categories –
SSO Category 1 – All discharges of sewage resulting from a failure in an Enrollee’s sanitary sewer system that resulted i n a discharge to a drainage channel and/or surface water.
SSO Category 2 – All discharges of sewage resulting from a failure in an Enrollee’s sanitary sewer system of a volume equal to or greater than 1,000 gallons that did not reach surface water.
SSO Category 3 – All discharges of sewage resulting from a failure in an Enrollee’s sanitary sewer system of a volume less than 1,000 gallons that did not reach surface water.
SSO Database – Online reporting system developed, hosted, and maintained by the SWRCB for compliance with the Monitoring and Reporting Program contained in SSS WDR.
System Evaluation and Capacity Analysis Plan (SECAP) Sewer System – See Wastewater Collection System
Sewer System Management Plan (SSMP) is a document that describes the activities an agency uses to manage their wastewater collection system effectively.
State Water Resources Control Board (SWRCB) – State Water Resources Control Board and staff responsible for protecting the State’s water resources.
Supervisory Control and Data Acquisition (SCADA) – Refers to an electronic system that is used to monitor lift station performance and to initiate alarms when monitored parameters exceed pre-set limits.
Upper Lateral – Portion of a lateral usua lly from the building foundation to the property line or easement line where it connects to the Lower Lateral. Enrollees may not own and maintain this portion of a Lateral since responsibility usually lies with the owner of the property that the lateral serves.
Waste Discharge Requirements (WDR/ GWDR) – Refers to the State Water Resources Control Board Order No. 2006-0003, Statewide General Waste Discharge Requirements for Sanitary Sewer Systems, dated May 2, 2006, and Order No. WQ2013 -0058-EXEC including all future revisions.
Wastewater Collection System – All pipelines, pump stations, and other facilities upstream of the headworks of the wastewater treatment plan
WDID – Waste Discharge Identification number assigned as a unique identifier by the SWRCB to each Enrollee for regulatory recordkeeping and data management purposes.
City of Manhattan Beach SSMP
9 Introduction
Willdan Engineering has been retained by the City of Manhattan Beach Utilities Division to update the City’s Sewer System Management Plan (SSMP) to be presented to the State Water Resources Control Board (SWRCB). The report is organized in accordance with the SWRCB requiremen ts, provides discussions of the requirements and makes recommendations to implement measure to meet the requirements.
This report also forms the basis for the SSMP audit subsequent to approval by the City of Manhattan Beach and SWRCB.
Background
On May 2, 2006, the State Water Resources Control Board (SWRCB) adopted a Statewide General Waste Discharge Requirements and Monitoring and Reporting Program (GWDR) by issuing Order No. 2006 -003. See Appendix A for reference. The regulations in the Order were developed out of growing concern about the water quality impacts of Sanitary Sewer Overflows (SSOs), particularly those that cause beach closures, adverse effects to other bodies of water, or pose serious health and safety nuisance problems.
On July 30, 2013, Attachment A to the Order was promulgated and became effective on September 9, 2013, and is known as Attachment A, SWRCB Order No. WQO 2013-0058- EXEC, amending the Monitoring and Reporting Program for Statewide General Waste Discharge Requirement s for Sanitary Sewer Systems (together these documents constitute the “SSS WDR”). The amendment added a SSO Category 3 and revised the Category 1 and 2 updating the reporting requirement. This SSMP report has been revised pertaining these requirements.
See Appendix B for reference.
This permit, among other things, requires local public sewer collection system agencies, referred to as “Enrollees,” to develop a Sewer System Management Plan (“SSMP”).
SSMPs must be self-audited at least every two (2) years and updated every five (5) years from the original adoption date by the Enrollee’s governing board. The original SSMP must have been approved by the governing board of the Enrollee at a public meeting and adopted.
The five -year SSMP update must also be app roved and certified as do all significant updates to the SSMP. The SSMP, all references in the document, and the adoption documents by the governing board must be available on the agency website or submitted to the SWRCB upon adoption or recertification. E nrollees do not send their SSMP to the State or Regional Water Boards for review or approval, but must make it publicly available, and upload an electronic copy to the SSO database or provide a link to the Enrollees’ website where the SSMP is posted.
City of Manhattan Beach SSMP
10 The two major components of the GWDR are:
1. Owners and operators of publicly owned collection Sewer Systems, a mile long or greater, apply for coverage under the GWDR; and
2. Owners and operators develop and implement a system specific Sewer System Management Plan (SSMP).
The SSMP must be self -audited at least every two years and updated every five years.
The last SSMP update for the City of Manhattan Beach was in January 2017 and the City performed its’ last internal audit on December 29,2021.
See Appendix E for Self-Audit report.
Areas of Concern:
• The draft 2010 FOG Source Control Program Manual needs to be finalized. • The City’s existing Wastewater Plan needs to be updated.
Appendix 14 includes the Notice of Inspection, pre -inspection questionnaire, inspection report, and sign -in sheet. Appendix 15 includes the Notice of Violation and inspection findings. Appendix 16 includes the City’s response to the violations and areas of concern, planned amendments, FY 2021 -2026 CIP Budget, Completed Priori ty Projects, SSMP Audit Proposal, manhole with root issues resolved, hydro cleaning daily report, and wastewater station daily worksheet.
City of Manhattan Beach SSMP
11 i. Organization of SSMP
Section D.13 of the SSS WDR, requires all Enrollees to development an SSMP and make it available to the public and to the SWRCB and RWQCB. The SSS WDR further specifies eleven (11) mandatory Elements that must be addressed in the SSMP. The SSS WDR also req uires that the SSMP be audited at least every two (2) years from the original governing board approval date and updated or revised and re -certified by the governing board at least every five years from adoption and must include any significant changes to the SSMP, as specified in Section D.14 of the SSS WDR. This guide is written to assist Enrollees in developing and updating SSMPs.
The eleven (11) required SSMP Elements that must be included in an SSMP are as follows:
1. Goals
2. Organization
3. Legal Authority
4. Operation and Maintenance Program
5. Design and Performance Provisions
6. Overflow Emergency Response Plan (OERP)
7. Fats, Oils and Grease (FOG) Control Program
8. System Evaluation and Capacity Assurance Plan (SECAP)
9. Monitoring, Measurement, and Program Modifications
10. SSMP Program Audits
11. Communication Program
If an Enrollee (the City) modifies amends or changes any of the Elements as a result of an audit, changes in its operating philosophies, or new technology additions, those changes must be specified an d included in an SSMP Change Log now required to be included in an appendix to the SSMP (MRP Section E.3.).
ii. City Service Area and Sewer System
The City of Manhattan Beach is located 19 miles southwest of Los Angeles on the southerly end of Santa Monica Bay, in Los Angeles County. The City of Manhattan Beach has a city area of 3.88 square miles. The City’s owned and operated sewer collection system is made up of a network of gravity sewers, pump stations, and force mains. The gravity system consists of approximately 81.6 miles of pipe, and 2086 manholes and clean outs. The system also includes eight pump stations and 5,114 feet of associated force mains.
Although the City maintains its sewer main lines, the lateral lines that connect individual homes and businesses to the main line are considered the responsibility of the property owner under the local ordinance: Title 5 – Sanitation and Health (MBMC 5.36.240). The majority of the local sewers lines tie into one of the Los Angeles County Sanitation District (LACSD) trunk sewers crossing the City. The sewage is then conveyed by gravity flow to the LACSD’s Joint Water Pollution Control Plant in the City of Carson.
City of Manhattan Beach SSMP
12 Chapter 1 Goals
This SSMP element identifies goals the City has set for the management, operation and maintenance of the sewer system and discusses the role of the SSMP in supporting these goals. These goals provide focus for C ity staff to continue high -quality work and to implement improvements in the management of the City’s wastewater collection system.
This section fulfills the requirement of SWRCB SSMP Element 1 - Goals
1.1 Regulatory Requirements
According to State Water Resources Control Board Order No. 2006 -003 Item 13 (i), the goal of the SSMP is to provide a plan and schedule to properly manage, operate, and maintain all parts of the sanitary sewer system. This will help reduce and prevent SSOs, as well as mitigate any SSOs that do occur.
1.2 SSMP Goals
The City of Manhattan Beach Public Works Department prides itself in providing high quality services to the City’s many residents and businesses. Providing safe, responsive, and reliable sewer service is a key component to fulfilling the City’s goal. The Public Works Department is cautious and mindful of the importance of their role in the City’s day-to-day functions. Accordingly, the Public Works Department provides safe, reliable, efficient, and cost-effective services to ensure continuity of operations throughout the City. In support of this goal, the City has developed the following goals for the proper management, operation, and maintenance of its sewer system.
1. Minimize sanitary sewer overflows.
2. Prevent public health hazards.
3. Minimize inconveniences by responsibly handling interruptions in service.
4. Protect the large investment in the collection system by maintain adequate capacities and extending useful life.
5. Prevent unnecessary damage to public and private property.
6. Use funds available for sewer operations in the most efficient manner
7. Convey wastewater to treatment facilities with a minimum of infiltration, inflow and exfiltration.
8. Provide adequate capacity to convey peak flows
9. Perform all operations in a safe manner to avoid personal injury and property damage
This SSMP supplements and supports the City’s existing Operation and Maintenance Program and goals by providing high-level, consolidated guidelines and procedures for all aspects of the City’s sewer system management. The SSMP will contribute to the proper management of the collection system and assist the City in minimizing the frequency and impacts of SSOs by providing guidance for appropriate maintenance, capacity management, and emergency response.
City of Manhattan Beach SSMP
13 1.3 Monitoring and Reporting Plan Requirements
All changes to this Element of the SSMP must be recorded along with the date and person responsible for the changes on the SSMP Change Log (MRP at section E.3.) attached as an appendix to the SSMP. Enrollees should also consider the addition of separate appendices for copies of all adoption and recertification documents and all audit reports completed by the Enrollee
1.4 References
SSS WDR -
http://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2006/wq o/wqo20 06_0003.pdf
MRP -
http://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2013/wq o2013_ 0058exec.pdf
City of Manhattan Beach SSMP
14 Chapter 2 Organization
The intent of the Organization element is to identify persons, by name, responsible for implementing the SSMP, responding to SSO events, and meeting the SSO reporting requirements, including drafting, and certifying spill reports and providing other information required by the CIWQS Online Database. This section fulfills the requirement of SWRCB SSMP Element 2 - Organization.
2.1 Regulatory Requirements
According to State Water Resources Control Board Order No. 2006 -003 Item 13 (ii), the SSMP must identify the:
a. Name of the responsible or authorized representative b. Names and telephone numbers for management, administrative, and maintenance positions responsible for implementing specific measures in the SSMP program.
Identify lines of authority in an organization chart or similar document with a narrative explanation; and
c. Chain of communication for reporting SSOs, from receipt of a complaint or other information, including the person responsible for reporting SSOs to the State and Regional Water Qualit y Control Board (RWQCB) and other agencies if applicable (such as County Health Officer, County Environmental Health Agency, and/or State Office of Emergency Services (OES)).
2.2 Authorized Representative
The Public Works Director is the authorized representative for the execution of the compliance actions required under the WDRs. This includes, but not limited to, signing and certifying all reports and correspondence as required under this order.
2.3 Management and Organizational Structure
The organiz ation chart for management, operation, and maintenance of the City’s wastewater collection system is shown in Figure 1 – Organization Chart of Sewer Staff.
The phone numbers for designated staff are included in Table 1 – Sewer Staff Contact Information.
City of Manhattan Beach SSMP
15 Figure 1 – Organization Chart of Sewer Staff
Description of General Responsibilities
Public Works Director: Approves Public Notifications of an SSO and Sewage Stoppage Report, communicates with media, as applicable.
Utilities Manager: Reviews Sewage Stoppage Report and provides to Public Works Director for approval, receives and conveys messages of after-hour SSOs, certifies online SSO reporting, communicates with media, as applicable.
Wastewater Supervisor: Monitors SCADA system, receives and conveys messages of SSOs to appropriate personnel, provides instructions for reporting to SSOs, completes online SSO reporting, provides Sewage Stoppage Report to Utilities Manager.
Sewer Maintenance Worker: Responds to SSOs, obtains onsite information regarding SSO, assists in containment, clean -up, and maintenance of the collection system. One on-call person is assigned to be on standby seven days a week , with a 30 -minute response time after business hours.
Erick Lee
Public Works Director
Lou Vargas
Utilities Division
Manager
Rudy Hurtado
Wastewater Supervisor
Mitko Peltekov
Sewer Maintenance
Worker
Daniel Canizales
Sewer Maintenance
Worker
Joel Velez
Sewer Maintenance
Worker
Cody DeCesare
Sewer Maintenance
Worker
City of Manhattan Beach SSMP
16 Table 1 – Enrollee Contacts Responsible for SSMP
Name Title Phone Number Email Address
Erick Lee Public Works Director (310) 802-5302 [email protected] Lou Vargas Utilities Manager (310) 802-5320 [email protected] Rudy Hurtado Utilities Supervisor –
Sewer/Stormwater
(310) 802-5310 [email protected]
Mitko Peltekov Sewer Maintenance Worker (310) 600-0475
Daniel Canizales Sewer Maintenance Worker (310) 600-0475 Joel Velez Sewer Maintenance Worker (310) 600-0475
Cody DeCesare Sewer Maintenance Worker (310) 600-0475
SSMP Element Responsible
Party
(Position)
Responsib
le Party
(Name)
Phone
Number
Email Address
Introduction
1 – Goals Public Works
Director
Erick Lee (310) 802-5302 [email protected]
2 – Organization Public Works
Director
Erick Lee (310) 802-5302
3 – Legal Authority Utilities Manager Lourdes Vargas (310) 802-5320 lvargas@manhatta nbeach.gov 4 – O&M Program Utilities Supervisor
–Sewer/Stormwater
Rudy Hurtado (310) 802-5310 [email protected] 5 – Design &
Performance
Provisions
Sr. Civil Engineer Tim Birthisel (310) 802-5368 tbirthisel@manh attanbeach.gov 6 – Overflow
Emergency Response
Program
Utilities Supervisor
–Sewer/Stormwater
Rudy Hurtado (310) 802-5310 [email protected] 7 – FOG Control
Program
Management
Analyst
Nicholle Petroff (310) 802-5312 [email protected] 8 – SECAP Sr. Civil Engineer Tim Birthisel (310) 802-5368 tbirthisel@manh attanbeach.gov 9 – Monitoring,
Measurement, and
Program
Modifications
Utilities Supervisor
–Sewer/Stormwater
Rudy Hurtado (310) 802-5310 [email protected] 10 – SSMP Program
Audits
Management
Analyst
Nicholle Petroff (310) 802-5312 [email protected] 11 – Communication Management
Analyst
Nicholle Petroff (310) 802-5312 [email protected] Change Log Management
Analyst
Nicholle Petroff (310) 802-5312 [email protected]
City of Manhattan Beach SSMP
17 2.4 SSO Reporting Chain of Communication
The chain of communication for responding to and reporting SSOs to the appropriate regulatory agencies is depicted in Figure 2 – SSO Reporting Flow Chart. Table 2 lists the contact phone numbers for the parties included in the chain of communication. Chapter 6 Overflow Emergency Response Plan details the procedures and responsibilities during an SSO event, and the procedure is briefly summarized below:
The City encourages citizens to report overflows to the Public Works Department during business hours. All calls are forwarded to the Utilities or Street Division at the Public Works Department if residents call the Fire Department or City Hall. For after -hours, the City utilizes a Regional Communication Center (RCC). There are four maintenance workers, one of whom is on standby seven days a week. The dispatchers are trained to page the on-call maintenance phone for water, sewer, or street -related incidents. Once at the scene, staff will:
• Investigate the site
• Determine the cause of the problem
• Request reinforcement, if necessary
• Contain and mitigate
• Correct the SSO and clean-up
• Notify the proper regulatory agencies, as appropriate • Document response actions by completing the internal SSO Report Form • Report the SSO in the CIWQC SSO Online Reporting Database
2.5 Monitoring and Reporting Plan Requirements
The MRP states that:
• An Enrollee may/should have more than one LRO.
• Any LRO shall be registered with the SWRCB; link to CIWQS User Registration (LROs and Data Submitters) at https://ciwqs.waterboards.ca.gov/ciwqs/newUser.jsp. • The Enrollee shall maintain continuous coverage by an LRO. Any change of a registered LRO, including deactivation or a change to the LRO’s contact information, shall be submitted by the Enrollee to the SWRCB within 30 days of the change by calling 866-79- CIWQS (24977) or by email at [email protected].
2.6 References
SSS WDR -
http://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2006/wq o/wqo20 06_0003.pdf
MRP -
http://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2013/wq o2013_ 0058exec.pdf
City of Manhattan Beach SSMP
18 Table 2 – Contact Numbers for SSO Chain of Communication
Contact Phone Number
Utilities Division (310) 802-5304
Public Works Department – After Hours (310) 545-4566
Public Works Department – Daytime (310) 802-5300
Office of Emergency Services (OES) (800) 852-7550
Emergency Service Coordinator (Sherryl
Jones)
310-729-8322
L. A. County Department of Health (213) 974-1234
City Hall (310) 802-5000
Fire Department (310) 802-5200
Police Department (310) 545-4566
City of Manhattan Beach SSMP
19 Figure 2 – SSO Reporting Flow Chart
Reporting Source
NO Public Works
DepartmentYES
Regional
Communication
Center (RCC)
NO
Notify
Appropriate
Jurisdiction
YES
Wastewater
Supervisor
dispatches
crew
Hazardous
Substances
Involved?
Valid?
Wastewater
Supervisor
After-
Hours?
YES Notify Fire
Department
NO
Contain Clean-
Up & Prepare
Reports
Is SSO greater
than 1,000 gal
or reached a
storm drain?
NO
Report to Public
Works Online SSO
Reporting
YES
Report to Public Works
Online SSO Reporting,
Report to OES
Report to LACDH**
Dispatch
Sewer Maintenance
Worker to
Investigate
**Note: Report SSO
to Los Angeles
County Department of
Health Immediately at
(213) 974-1234
City of Manhattan Beach SSMP
20 City of Manhattan Beach SSMP
21 Chapter 3 Legal Authority
This chapter of the SSMP discusses the legal authority , including the Manhattan Beach Municipal Code, to comply with the SSMP requirements through sewer ordinances and service agreements with other agencies. This section fulfills the requirement of SWRCB SSMP Element 3 - Legal Authority.
3.1 Regulatory Requirements
According to State Water Resources Control Board Order No. 2006-003 Item 13 (iii), the enrollee must demonstrate, through sanitary sewer system use ordinances, service agreements, or other legally binding procedures, that it possesses the necessary legal authority to:
a. Prevent illicit discharges into its sanitary sewer system (examples may include infiltration and inflow (I/I), storm water, chemical dumping, unauthorized debris and cut roots, etc.).
b. Require that sewers and connections be properly designed and constructed. c. Ensure access for maintenance, inspection, or repairs for portions of the lateral owned or maintained by the Public Agency.
d. Limit the discharge of fats, oils, and grease and other debris that may cause blockages, and
e. Enforce any violation of its sewer ordinances.
3.2 Illicit Discharge Prevention
The City of Manhattan Beach amended the Code of Ordinance, Title 5 – Sanitation and Health, to include Chapter 5.36 – Sewers, Sewage Disposal – City Sewage System. The purpose of this chapter is to prevent discharges from ente ring the sewer pipelines and drainage that would obstruct or damage the system, interfere with treatment, or threaten harm to human health or the environment. Sections from Chapter 5.36 that specifically limit the illicit discharges are included in Appendi x 1 and identified in Table 3 Legal Authority Checklist.
3.3 Design, Construction, and Installation Requirements
The Public Works Department, Engineering Division develops and enforces standards that require all sewers constructed in the City comply with standard plans, specifications, policies, and practices. This applies to private developer designed and constructed projects. These standards are continuously updated to incorporate new materials and construction methods to ensure that the completed installat ions meet the high- performance standards of the City. Construction plans and technical specifications are prepared for all new or rehabilitation projects that document the standard of performance for the construction and the standards for acceptance. Servi ce connections must be designed and constructed to meet the City of Manhattan Beach Plumbing Code. The City does not accept the installed components until they pass all required performance tests, paid fees, and a field acceptance from the Public Works Bui lding Inspector. Every City of Manhattan Beach SSMP
22 connection made with any public sewer of the City shall be made in accordance with the Sewer Connection Special Plans and Specifications approved by the Council designated and numbered as ST-5 on file in the office of the City Clerk and hereby referred to and by this reference incorporated herein and made a part h ereof, and only with materials as are therein specified. Sections from Chapter 5.36 of the Manhattan Beach municipal code that support these requirements are included in Appendix 1 and identified in Table 3 Legal Authority Checklist.
3.4 Lateral Maintenance Access
The City does not maintain private lateral sewer lines. Property owners are responsible for proper installation, operation and maintenance of both upper and lower laterals, including laterals on the City -owned easement. Property owners are required to obtain permits from the Department of Community Development for work on private properties and the Department of Public Works for work in the public right -of-way. The section from Chapter 5.36 of the Manhattan Beach municipal code that supports these requirements is included in Appendix 1 and identified in Table 3 Legal Authority Checklist.
3.5 Fats, Oils and Grease Discharge Limitations
The City of Manhattan Beach amended the Code of Ordinance, Title 5 – Sanitation and Health, to include Chap ter 5.38 – FATS, OILS AND GREASE MANAGEMENT AND DISCHARGE CONTROL. The purpose of this chapter is to facilitate the maximum beneficial public use of the City's sanitary sewer collection system while preventing blockages of sewer lines resulting from discha rges of FOG to the system, and to specify appropriate FOG discharge requirements for FSEs discharging into the City's sewer system. Sections that specifically limit the discharge of FOG that may cause blockages are include in Appendix 2 and identified in Table 3 Legal Authority Checklist.
3.6 Monitoring and Reporting Plan Requirements
The September 2013 MRP did not change any of the requirements of the previously adopted SSS WDR for this element.
3.7 Enforcement Provisions
The City’s Ordinance provides the authority to carry out all inspection, surveillance, and monitoring procedures necessary to determine, independent of information supplied by FSE’s, compliance or noncompliance by industrial users with applicable pretreatm ent standards and requirements. The Ordinance gives the Director of Public Works the power, jurisdiction, and supervision over places of discharge of wastewater into the sewer system, necessary to adequately enforce and administer all applicable State and Federal laws. Sections in Chapter 5.38 of the Manhattan Beach municipal code that support these requirements are include in Appendix 2 and identified in Table 3 Legal Authority Checklist.
City of Manhattan Beach SSMP
23 Table 3 – Legal Authority Checklist
Requirement Title 5, Code of Ordinance
ILLICIT DISCHARGES
Prevent illicit discharges into the
wastewater collection system
Chapter 5.36 Sections: 250, 260,
270, 280, 290, 300, 330
PROPER DESIGN AND CONSTRUCTION
Require that sewers and
connections are
properly designed and constructed
Chapter 5.36 Section: 170, 310
LATERAL ACCESS
Ensure access for maintenance,
inspection, or repairs for portions of
the service lateral owned or
maintained
Chapter 5.36 Section: 240 (shall be
maintained by property owner)
FOG SOURCE CONTROL
Limit the discharge of FOG and
other debris that may cause
blockages including permits and
requirements
Chapter 5.38 Sections: 015, 020,
025,030, 035, 045, 050, 055, 060,
065, 070,
Requirements to install grease
removal devices (such as
interceptors)
Chapter 5.38 Section: 105
ENFORCEMENT
Enforce any violation of sewer
ordinance
Chapter 5.38 Sections: 110, 115,
120,125, 130, 135, 140, 145, 150,
155, 160, 65, 170, 175, 180
3.8 References
City of Manhattan Beach Municipal Code Title 5, Sanitation and Health
5.36 – Sewers, Sewage Disposal – City Sewage System
https://www.municode.com/library/ca/manhattan_beach/codes/code_of_ordinances?no deId=TIT5SAHE_CH5.36SESEDIITSESY
5.38 - Fats, Oils and Grease Management And Discharge Control
https://www.municode.com/library/ca/manhattan_beach/codes/code_of_ordinances?no deId=TIT5SAHE_CH5.38FAOIGRMADICO
SSS WDR -
http://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2006/wq o/wq o2006_0003.pdf
City of Manhattan Beach SSMP
24 MRP -
http://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2013/wq o20 13_0058exec.pdf
City of Manhattan Beach SSMP
25 Chapter 4 Operation and Maintenance Program
This chapter of the SSMP discusses the operation and maintenance program to comply with the SSMP requirements through preventive and cleaning routines, staff training, and appropriate equipment. This section fulfills the requirement of SWRCB SSMP Element 4 - Operation and Maintenance Program.
4.1 Regulatory Requirements
According to State Water Resources Control Board Order No. 2006-003 Item 13 (iv), the enrollee must include those elements that are appropriate and applicable to the Operation and Maintenance Program:
a. Maintain an up -to-date map of the sanitary sewer system, showing all gravity line segments and manholes, pumping facilities, pressure pipes and valves, and applicable storm water conveyance facilities;
b. Describe routine preventive operation and maintenance activities by staff and contractors; including a system for scheduling regular maintenance and cleaning of the sanitary sewer system with more frequent cleaning and maintenance targeted at known problem areas. The Preventative Maintenance (PM) program should have a system to document scheduled and conducted activities, such as work orders; c. Develop rehabilitation and replacement plan to identify and prioritize system deficiencies and implement short-term and long-term rehabilitation actions to address each deficiency. The program should include regular visual and TV inspections of manholes and sewer pipes, and a system for ranking the condition of sewer pipes and scheduling rehabilitation. Rehabilitation and replacement should focus on sewer pipes that are at risk of collapse or prone to more frequent blockages due to pipe defects.
Finally, the rehabilitation and replacement plan should include a capital improvement plan that addresses proper management and protection of the infrastructure assets.
The plan shall include a time schedule for implementing the short and long term plans plus a schedule for developing the funds needed for the capital improvement plan; d. Provide training on a regular basis for staff in sanitary sewer system operations, maintenance, and require contractors to be appropriately trained; and e. Provide equipment and replacement part inventories, including identification of critical replacement parts.
4.2 Collection System Mapping
The City’s GIS mapping data base, maintained by the GIS Manager, shows all features of the sanitary sewer system, including lift stations and pumping facilities, gravity line segments, manholes, force mains, valves. Other information layers are used for recording and tracking CCTV -identified defects, such as broken pipe, holes in pipes, offset joints, roots, and grease. The maps are routinely up dated to include sewer division capital projects and new or rehabilitated sewer system components. The Public Works Engineering and Utilities Divisions are responsible for providing as-built information to the GIS section for updating the maps. These records serve as reference for all future Capital Improvement planning.
City of Manhattan Beach SSMP
26 City’s Website
Map Gallery (pdfs)
https://www.manhattanbeach.gov/departments/information-technology/gis-and- maps/map-gallery:
Sewer System:
https://www.manhattanbeach.gov/departments/public-works/utilities-division/sewer- system
Interactive Mapping:
https://permitmaps.citymb.info/Html5Viewer/index.html?viewer=mbca&_ga=2.11549005
3.2059370828.1647203212-1275532579.1647203212
4.3 Routine and Preventive Maintenance Program
The City operates and maintains a sewer system that serves a population of approximately 35,000 people within the City area of 3.88 square miles. The Ci ty’s system consists of approximately 81.6 miles of sew er lines, 2086 manholes and clea n-outs, 8 lift stations, and 5,114 feet of associated force mains. The City has a proact ive and preventive maintenance program for its sewer system. The maintenance yard is strategically located in an area such that travel time is minimized when addressing r outine and emergency situations. Given the City’s proximity to the sea, a sewer- sys tem-overflow can reach the ocean in a relatively short peri od of time. Accordingly, the Ci ty’s sewer system preventative maintenance program is aggressive so as to obviate raw sewage reaching the ocean. The Wastewater Staff respond to all sewer emergency calls received 24/7, regardless of nature and ownershi p – public and private. During business hours, all reported and observed problem sewers are inspected and addresse d within 15 minutes.
During after-hours, all reported and observed sewer problems ar e inspected and addressed within sixty minutes. Problem sewers are identified, prioritized and scheduled for maintenance based on a comprehensive review of the maintenance history and system characteristics of all the sewers in the City including overflo ws, blockages, age, material and condition.
The City has acquired the work order management system infraMAP and the City is in the process of training personnel. T he City does not have written standard operations and maintenance procedures for its pump/lift stations; however, the City does use a standardized check list for the weekly pump/lift station inspections (included at the end of Appendix 16). For routine clean ing, the collection system is or ganized into 25 districts based on their tributary and the goal is to clean out each district twice a year. Maintenance includes high velocity sewer c leaning, vacuuming, and manual ro dding. Closed circuit television inspections are performed at the site of all sewer o verflows within twenty-four hours to identify any necessary repairs or special maintenance needs. These may trigger further reviews to determine cause and/or immediate or accelera ted corrective actions.
Corrective action schedules are set based on the severity of th e problem. Preventative maintenance activities that the City currently conducts include the following:
City of Manhattan Beach SSMP
27 • Fats, Oils, and Grease (FOG) Cleaning
Overflows caused by blockages from FOG are monitored for location and needed cleaning frequency. The City performs increased rotation of cleaning in sewers with known FOG concentrations. The City’s FOG Ordinance provides the legal authority to regulate and thus minimize FSE FOG contribution to the sewer system; and FOG Source Control Program Manual provides the FSE’s with information on FOG control Best Management Practices.
The FOG Source Control Program 2010 Manual is draft copy.
City’s Website for Municipal Code Title 5: Sanitation and Health
https://library.municode.com/ca/manhattan_beach/codes/code_of_ordinances?nodeI d=TIT5SAHE
• Root Control Strategy
Roots are the main issue the City faces, since the sandy soil conditions allow roots to grow quickly in search of a water source. The City performs routine mechanical root removal as an extensive cleaning schedule especially in areas of known root intrusion.
This schedule has prevented major root issues such as veil -type and root balls originating from private laterals.
• Odor Control Strategy
The City’s aggressive sewer line cleaning program has served to effectively control odor. The entire 81.6 miles of sewer lines are cleaned twice a year. “Ext ra attention” line, those with known root and grease issues, are cleaned twice a month. The City’s six wet wells are inspected and skimmed twice a week, and completely vacuumed out once a year.
• Pump Stations Maintenance
The Public Works Utilities office serves as the main center for SCADA monitoring and control of pump stations. Utilities Electrician and Sewer Maintenance Worker inspect the eight lift stations once per week. Southern California Edison is contracted to perform overall plant energy efficienc y testing, infrared panel inspections, meg ohm testing, vibration analysis and electric panel cleaning. The City’s seven of eight sewage lift stations have built-in backup emergency and redundancy power systems with automatic transfer switches. The power systems are start tested weekly by staff, and undergo motor and generator servicing bi- annually by Power Plus, Inc. The back- up generator is tested by running it once per month under no -load conditions, in compliance with local Air Quality Management District regulations.
4.4 Rehabilitation and Replacement Plan
The City initiated a five year program to inspect its approximately 2086 manholes and cleanouts, conduct CCTV inspections of its 81.6 miles of sewer lines and perform a structural rehabilitation analysis of the findings. The CCTV recordings are prioritized per the database summary developed through the analysis. Each reach will be assigned a condition grade per the PACP standards and pri oritization will be based on the type and City of Manhattan Beach SSMP
28 number of defects identified in each recording. Pipes that are believed to be at higher risk of collapse and blockages, and therefore have a greater potential for causing a sanitary sewer overflow will be given the highest priority. Operation and maintenance (O&M) defects such as grease, roots, and deposits are considered separately.
For each of the identified structural deficiencies, a Rehabilitation and Replacement Plan is developed along with an engineer’s cost estimate. The estimates include the construction cost, as well as the design, inspection, administration costs and contingencies. The Rehabilitation and Replacement Plan implementation entails a variety of short-, medium-, and long-term activities that ensure the sustainability of the sanitary sewer system infrastructure.
Short, Medium and Long-Term CIP Schedule
CCTV inspections and physical inspections provide up -to-date data that is used by the City to evaluate the hydraulic and structur al condition of its sanitary sewer system. From this assessment, deficiencies are identified, evaluated, improvement projects identified and scheduled. To assess the condition of CCTV inspected sewers, the City uses a five- category rating system based on the types and severity of defects. The Categories range from Category A (Excellent) to Category E (Emergency Condition). The condition ratings trigger a follow-up action that includes either rehabilitation within a certain time frame or a follow-up inspecti on. Rehabilitation projects are developed and scheduled for implementation on a prioritized basis with other identified needs. Category A and B Sewers are in excellent to good condition and are scheduled for continued inspections and monitoring. Category C condition sewers fall into the long -term CIP schedule. They are in fair condition and are scheduled for follow -up inspections every five years until repairs have been completed. Category D condition sewers fall into the medium-term CIP schedule. They are in a condition that requires close monitoring and may require rehabilitation within five years. Preventive measures are intensified, as appropriate, to avoid emergency situations and follow -up inspections are conducted annually. Category E condition sewers fall into the short -term CIP schedule. They need emergency repair.
These are sewers where a pipe failure has already occurred or there is a full flow obstruction/blockage and immediate repairs are initiated.
4.5 Staff and Contractor Training
• Sewer Maintenan ce Workers are initially trained in the proper operation and maintenance of all major sewer collections equipment and facilities by the Utilities Supervisor – Sewer/Stormwater.
• Critical equipment training is facilitated by outside contractors in areas of f ork lift operation, backhoe and bob-cat operation, crane operation • Every staff member receives periodic formal safety training in confined space entry, trench shoring, traffic control, heat illness, and hazardous materials management. • On-the-Job cross training is actively pursued to ensure staff has a proficient working knowledge of all aspects of sewer system maintenance.
• Task proficiency is a requirement for all job positions, and training records are maintained to monitor completed classes.
• Disaster training exercises are conducted twice a year, city -wide. The exercise is a City of Manhattan Beach SSMP
29 live disaster simulation, which includes outside contractors. The collection system trains for by setting up a bypass scenario for a pump station. • Staff is trained in the Best Management Practices of the Fats, Oils, and Grease (FOG) Control Ordinance, and has been instructed to report violations when encountered in the course of a working day.
• Staff are provided with 24/7 emergency contact numbers for contractors who perform sewer system repair, in addition to contact numbers for three neighboring cities – Hawthorne, El Segundo and Redondo Beach – who can lend aid in the form of equipment and personnel.
More information about the preventive maintenance and staff training is provided in Appendix 8.
4.6 Equipment and Replacement Part Inventory
The City maintains an inventory of equipment, replacement parts, and supplies and follows a structured process to ensure an up -to-date accounting and complete inventory of equipment and replacement parts for their specific duties. Parts that are needed for preventive maintenance are identified ahead of time for each specific maintenance task.
Parts are secured prior to the start of preventive maintenance. Redundancy is provided for key pump station equipment and all pump stations have backup power to minimize the risk of a complete shut -down. As a backup, managers have credit authority to purchase needed materials and supplies from local vendors of non -stock items when they are critically needed. The City maintains equipment and performs testing as needed to guarantee a ready state for immediate deployment in an emergency. A complete list of the inventory is provided in Appendix 3 and Existing Pump Inventory is provided in Appendix H.
4.7 Monitoring and Reporting Plan Requirements
a. The 2013 MRP update did not change the map requirements; however, the new Technical Report requirement for SSOs ≥ 50,000 gallons does require a “ Detailed location map illustrating all water quality sampling points.” It may be useful to draw or sketch on a copy of your map when do cumenting an SSO event to indicate the location(s) where the spill occurred and where water quality samples or any photos were taken.
b. The 2013 MRP update requires a Technical Report for SSOs ≥ 50,000 gallons. Part of that report must spell out an Enrollee’s response to the SSO, including “Final corrective action(s) completed and/or planned to be completed, including a schedule for actions not yet completed.” Any changes to the Preventive Maintenance Schedule could be included as a part of a corrective action plan.
a. In addition, any Rehabilitation or Replacement needed could be listed as part of the corrective action(s) taken or planned.
c. LROs, Data Submitters, and staff should be trained on details of the MRP as appropriate.
City of Manhattan Beach SSMP
30 d. The 2013 MRP update did not change the Equipment and Replacement Part Inventory requirements.
e. The 2013 MRP update now requires an Enrollee to develop and implement a Water Quality Monitoring Program to assess impacts of all SSOs greater than 50,000 gallons reaching surface waters. Sampling, as described in Section D of the MRP, must be initiated within 48 hours of the Enrollee becoming aware of the SSO.
4.8 References
City of Manhattan Beach Capital Improvement Plan
https://citymb.maps.arcgis.com/apps/MapSeries/index.html?appid=9f848041862b41418 965ab94420ee79b
City of Manhattan Beach Wastewater Master Plan (Section 5 & 9) https://www.manhattanbeach.gov/departments/public-works/utilities-division/master- plans
See Appendix 4-9 for Wastewater Master Plan (AKM Consulting engineers, October 21. 2010)
City of Manhattan Beach SSMP
31 Chapter 5 Design and Performance Provisions
This chapter discusses the design standards and specifications to comply with the SSMP requirements for new and/or rehabilitated sewers and other appurtenances. This section fulfills the requirement of SWRCB SSMP Element 5 – Design and Performance Provisions.
5.1 Regulatory Requirements
According to State Water Resources Control Board Order No. 2006-003 Item 13 (v), the enrollee must include the following Design and Performance Provisions:
a. Design and construction standards and specifications for the installation of new sanitary sewer systems, pump stations and other appurtenances; and for the rehabilitation and repair of existing sanitary sewer systems; and b. Procedures and standards for inspecting and testing the installation of new sewers, pumps, and other appurtenances and for rehabilitation and repair projects.
5.2 Design and Construction Standards and Specifications
As noted in Chapter 3, Legal Authority, th e Public Works Department, Engineering Division, develops and enforces standards that require all new sanitary sewers and appurtenances constructed to comply with standard plans, specifications, policies, and practices. This applies to private developer de signed and constructed projects.
Construction plans and technical specifications are prepared for all new or rehabilitation projects that document the standard of performance for the construction and the standards for acceptance. Service connections must b e designed and constructed to meet the City of Manhattan Beach Plumbing Code. Standards are continuously updated to incorporate new materials and construction methods to ensure that the completed design, construction, and installations meet the high-performance standards of the City. These standards include methodology for estimating wastewater design flows and minimum design standards for the collection system pipes, pump stations, and force mains.
Technical information related to Section 5.2 is included in Appendix 4.
5.3 Procedures and Standards for Installation, Rehab, and Repair Projects
The Public Works Department, Engineering Division, provides inspection on all rehabilitation and new sewer system construction contracts. Written inspection procedures are followed to ensure that sewer system facilities are built to conform to the plans and specifications. Inspections are conducted both on the jobsite and at material fabricators during manufacture and testing. The City does not accept the installed components until they pass all required performance tests and a field acceptance from the Public Works Inspector. New or rehabilitated system components are placed into service upon certification by the Public Works Inspector that they have been installed in accordance with plans and specifications.
City of Manhattan Beach SSMP
32 5.4 Monitoring and Reporting Plan Requirement
The MRP, issued with the SSS WDR, has no requirements to report anything specifically related to the Design and Reporting Standards required in the SSS WDR.
City of Manhattan Beach SSMP
33 Chapter 6 Overflow Emergency Response Program (OERP)
This chapter of the SSMP discusses the emergency response procedures for sewer overflows to comply with the SSMP requirements. This section fulfills the requirement of SWRCB SSMP Element 6 – Overflow Emergency Response Program.
6.1 Regulatory Requirements
According to State Water Resources Control Board Order No. 2006 -003 Item 13 (vi), the enrollee shall develop and implement an overflow emergency response plan that identifies measures to protect public health and the environment. At a minimum, this plan must include the following:
a. Proper notification procedures so that the primary responders and regulatory agencies are informed of all SSOs in a timely manner;
b. A program to ensure appropriate response to all overflows; c. Procedures to ensure prompt notification to appropriate regulatory agencies and other potentially affected entities ( e.g., health agencies, regional water boards, water suppliers, etc.…) of all SSOs that potentially affect public health or reach the waters of the State in accordance with the MRP. All SSOs shall be reported in accordance with this MRP, the California Water Code, other State Law, and other applicable Regional Water Board WDR or NPDES permit requirements. The SSMP should identify the officials who will receive immediate notification; d. Procedures to ensure that appropriate staff and contractor personnel are aware of and follow the Emergency Response Plan and are appropriately trained; e. Procedures to address emergency operations, such as traffic and crowd control and other necessary response activities; and
f. A program to ensure that all reasonable steps are taken to cont ain and prevent the discharge of untreated and partially treated wastewater to waters of the United States and to minimize or correct any adverse impact on the environment resulting from the SSOs, including such accelerated or additional monitoring as may be necessary to determine the nature and impact of the discharge.
6.2 Notification Procedures for SSOs
The City of Manhattan Beach Utilities Division maintains an up -to-date Sanitary Sewer Overflow Response Plan as mandated by the State Water Resources Control Board, which the City follows to provide formal notice to the Office of Emergency Services (OES).
The City encourages citizens to report overflows to the Utilities Division via the Public Works Department (business hours) and the Regional Communication Center (after - hours). Sewer staff is available 24 hours per day, seven days per week to receive and respond to calls, regardless of whether they originate on public or private property. There is a complaint phone log maintained of all calls. Once verified, all sewer overflows regardless of volume or potential impact are reported to all parties in the chain of communication within the City and to the appropriate regulatory agencies, as shown in Figures 1 and 2 in Chapter 2.
City of Manhattan Beach SSMP
34 Under the Order’s reporting requirements three categories of SSOs are defined:
• Category 1. All discharges of sewage of any volume resulting from failure in sanitary sewer system or flow condition that:
✓ Reach drainage channel and/or surface water tributary to a surface water ✓ Reach a Municipal Separate Storm Sewer System (MS4) and are not fully captured and returned to the sanitary sewer system or not otherwise captured and disposed of properly. Any volume of wastewater not recovered from the MS4 is considered to have reached surface water unless the storm drain system discharges to a dedicated storm water or groundwater infiltration basin (e.g., infiltration pit, percolation pond). • Category 2. All discharges of sewage resulting from failure in sanitary sewer system that:
✓ Equals or exceeds 1,000 gallons
✓ Does not reach surface water, a drainage channel, or a municipal separate storm sewer system unless the entire SSO discharged to the storm drain is disposed properly • Category 3. All other discharges of untreated or partially treated sewage resulting from a failure in the sanitary sewer system.
• Private Lateral Sewage Discharges (PLSD). Sewage discharges that are caused by blockages or other problems within a privately owned lateral. PLSD that the enrollee becomes aware of may be voluntarily reported to the CIWQS Online SSO Database.
Initial reporting of Category 1 and Category 2 SSOs must be reported to the Online SSO Database as soon as po ssible, but no later than three business days after the SSO is known. A final certified report must be completed through the Online SSO Database within 15 calendar days of the conclusion of SSO response and remediation. Category 3 SSOs must be reported to the Online SSO Database within 30 days after the end of the calendar month in which the SSO occurs. Private Lateral Sewage Discharges may be reported on the Online SSO Database, but, if reported, should be identified as occurring and caused by a private lateral.
In addition to reporting on the SSO Database, Category 1 SSOs, especially those that enter surface waters, must notify to the Office of Emergency Services (OES) within two hours and obtain a notification control number in accordance with California Water Code Section 13271, et seq. Order No. WQ. 2013-0058-EXEC
The City of Manhattan Beach SSO Report Form is included in Appendix 12. The sanitary sewer overflow locations map (from SWRCB Online Incident Map) and reports from 2017 to 2021 are included in Appendix 13. SSOs from 2007-2009 are summarized in Appendix
8. 6.3 Response Program for SSOs
The City’s Overflow Response Plan presents a strategy for the mobilization of labor, materials, tools, and equipment to correct or repair any condition which may cause or contribute to an SSO. The procedure requires full, immediate, and appropriate attention and response to a sanitary sewer overflow with the ultimate goal of minimizing impacts to public health and safety and the environment. Telephone calls to report overflows or other maintenance problems are answered 24 hours per day, 7 days per week. Wastewater personnel are immediately notified upon receipt of a reported potential sewer overflow and City of Manhattan Beach SSMP
35 are instructed to respond immediately, rega rdless of whether the cause of the problem originates on public or private property. Written procedures are provided for assessing the overflow, notifying supervisors, documenting the overflow, estimating the volume of the overflow, sampling, and laboratory analysis, posting warning signs and following up.
All construction contractors working on the City’s sewer system are required to have Department of Public Works approved sewage flow bypass system and Emergency Response Plan in place prior to start of c onstruction. Contractors are instructed to take immediate action to stop any overflow and to contact City personnel immediately.
6.4 Notification to Regulatory Agencies
The City’s Sanitary Sewer Overflow Response Plan outlines notification steps and includes a comprehensive contact and notification list. Notification depends on the severity and potential impact of the overflow. All sewer overflows that enter the waters of the state, such as the ocean, must be reported immediately – within 15 minutes of the knowledge of an overflow event, and/or when the Utilities Division’s personnel determine that an overflow could potentially reach the waters of the State based on their knowledge of the sewer and storm drain infrastructure. Within two hours of becoming awar e of any Category 1 SSO greater than or equal to 1,000 gallons discharged to surface water or spilled in a location where it probably will be discharged to surface water, notify CalOES and obtain a notification control number by calling at (800) 852-7550
The notification lists are updated to keep officials’ names and positions current.
Construction contractors are required to take immediate measures to mitigate, and report overflows as soon as they are discovered. The Department of Public Works inspectors report construction -related overflows to the Utilities Division and document the time, location, cause, estimated quantity, and any impact of the overflow, and take mitigation measures as needed.
6.5 Staff Training for Emergency Response
All Utilities Division personnel have participated in a workshop on the City’s Standard Operating Procedures (SOP) for the Sanitary Sewer System. The SOP is an active element of the City’s Emergency Operations Center training program. All wastewater operation and maintenance staff are trained on emergency response procedures once a year, city-wide. New employees receive this training as part of their orientation and this training is reinforced during tailgate training sessions. Public Works Inspectors are also trained in emergency response procedures. The City emphasizes its goal to have no construction-related overflows during pre -bid and pre-construction meetings. Presently, the City is in process of training personnel.
Construction contractors are required to submit and obtain approval of all flow bypasses and emergency response plans prior to the start of construction.
City of Manhattan Beach SSMP
36 6.6 Emergency Operation Procedures
Public health and safety are of paramount importance when a sewer system overflow occurs. Accordingly, City personnel are trained to utilize the Work Area Control Handbook in traffic and crowd control. The control systems and signage serve to provide safe and effective work areas, and to warn, control, protect and facilitate vehicular and pedestrian traffic. The City has implemented sewer system overflow response and reporting procedures that include timely reporting to regulatory agencies, tables for estim ating overflow volume, and follow -up CCTV inspection to accurately determine cause and prevention methods. Adequate staff is placed on standby status to supplement existing staff as needed or respond to an emergency after hours.
The City maintains a list of pre -qualified on -call contractors who provide specific equipment, materials, and crews to the City in emergency operations. The City’s Police Department, Fire Department, and Public Works Department can be utilized to assist in emergency situations.
6.7 Containment and Prevention of SSOs
The City seeks to protect public health & safety and the environment through the implementation of all Federal and State laws, standards, and orders applicable to untreated wastewater. Through a comprehensive and systema tic program of cleaning, condition assessment, repair, and upgrade of its sewer system, the City has minimized all reasonable risks associated with the accidental discharge of sewage into the ocean. When an overflow occurs, the highest priorities are to co ntain the overflow and minimize, if not prevent, the overflow discharge into the storm drain system, and to minimize or eliminate exposure to the public and impact on public health. The City’s Sanitary Sewer Overflow Response Plan provides guidance to the crews in order to accomplish this objective. A comprehensive investigation is performed for each overflow event to diagnose cause and take remedial measures to prevent and mitigate similar future events.
City of Manhattan Beach SSMP
37 Chapter 7 Fats, Oils and Grease (FOG) Control Program
The City’s Manhattan Beach Municipal Code Title 5, Sanitation and Health, Chapter 5.38- Fats, Oils And Grease Management And Discharge Control facilitates the maximum beneficial public use of the City's sanitary sewer collection system while preventing blockages of sewer lines resulting from discharges of FOG into the sewer system, and specifying appropriate FOG discharge requirements for Food Service Establishments (FSEs) to comply with the SSMP requirements. This section fulfills the requirement of SWRCB SSMP Element 7 – FOG Control Program.
7.1 Regulatory Requirements
According to State Water Resources Control Board Order No. 2006-003 Item 13 (vii), the enrollee shall evaluate its service area to determine whether a FOG control program is needed. If an Enrollee determines that a FOG program is not needed, the Enrollee must provide justification for why it is not needed. If FOG is found to be a problem, the Enrollee must prepare and implement a FOG source control program to reduce the amount of these substances discharged to the sanitary sewer system. This plan shall include the following as appropriate:
a. An implementation plan and schedule for a public education outreach program that promotes proper disposal of FOG;
b. A plan and schedule for the disposal of FOG generated within the sanitary sewer system service area. This may include a list of acceptable disposal facilities and/or additional facilities needed to adequately dispose of FOG generated within a sanitary sewer system service area.
c. The legal authority to prohibit discharges to the system and identify measures to prevent SSOs and blockages caused by FOG;
d. Requirements to install grease removal devices (such as traps or interceptors) design standards for the removal devices, maintenance requirements, BMP requirements, record keeping 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 establish a cleaning maintenance schedule for each section; and g. Development and implementation of source control measures, for all sources of FOG discharged to the sanitary sewer system, for each section identified in (f) above.
7.2 Implementation Plan and Schedule for Public Outreach
The City of Manhattan Beach public education and outreach program is an ongoing effort that includes topics such as proper FOG management disposal procedures, as well as a general overview of the FOG Ordinance. Four outreach FOG workshops were provided to FSEs. Educational brochures and posters describing the FOG Control Program and Kitchen Best Management Practices are distributed to FSEs in English and Spanish. The City also maintains an up -to-date website, which serves as an additional source of information to the food service industry and the community at large. The FOG Ordinance, City of Manhattan Beach SSMP
38 FOG Source Control Manual, and general information about eliminating FOG discharges into the sewer system are among the information items provided on the website.
7.3 Plan and Schedule for Disposal of FOG
The City does not own or operate any FOG disposal facilities, and the City does not allow FOG waste haulers to discharge waste FOG into the sewer system either. However, the Los Angeles County Sanitation District accepts FOG from its member agency service areas, of which the City of Manhattan Beach is a part, at its Joint Water Pollution Control Plant in the City of Carson.
7.4 Legal Authority to Prohibit FOG Discharges
The City of Manhattan Beach implements FOG discharge prohibitions, which are set forth in the Manhattan Beach Municipal Code – Title 5, Sanitation and Health, Chapter 5.38 – Fats, Oils and Grease Management And Discharge Control. The prohibition section of the Manhattan Beach municipal code that supports this requirement is included in Appendix 2 and identified in Table 3 of Legal Authority Checklist.
7.5 Design and Installation of Grease Removal Devices
The City of Manhattan Beach implements requirements for grease removal devices in Chapter 5.38 – Fats, Oils and Grease Management And Discharge Control. The grease removal devices must be cleaned, maintained and operational in order to m inimize FOG discharges into the sewer system. The sections of the Manhattan Beach municipal code that support this requirement are included in Appendix 2 and identified in Table 3 Legal Authority Checklist.
7.6 Authority for Inspection of Grease Producing Facilities
The City of Manhattan Beach implements inspection requirements for grease producing facilities in Chapter 5.38 – Fats, Oils and Grease Management and Discharge Control.
These regulations ensure the sewer facilities are protected and a re able to operate with the highest degree of efficiency, as well as protect the public health and environment. The sections of the Manhattan Beach municipal code that support this requirement are included in Appendix 2 and identified in Table 3 Legal Authority Checklist.
See Appendix F for FOG Facilities
7.7 Identification and Scheduling for Maintenance of Sewer Sections Prone to FOG Blockages
SSOs caused by blockages from FOG are monitored for location and required cleaning frequency. All blockages are plotted on a GIS overlay map. Locations with a high number of sewers prone to FOG accumulation or blockages are given high priority and cleaned more frequently in an effort to prevent FOG–related overflows. All reaches, including “non- problem” sewers, are included in a routine preventive maintenance cleaning schedule.
Scheduled and completed tasks are catalogued and tracked by work orders. The City of Manhattan Beach SSMP
39 maintenance program includes preventive, proactive, predictive, and corrective maintenance, maintenance engineering, and quality control.
7.8 Development and Implementation of Source Control Measures for Sewer Sections Prone to FOG Blockages
The City’s FOG Ordinance requires FSEs to have an industrial wastewater permit, comply with source control measures f or all sources of grease, implement Best Management Practices, install grease interceptors as applicable, and are subject to annual inspections to verify continuous compliance.
The FOG Ordinance provides the City with the legal authority to inspect FSE pr emises and monitor the implementation of Best Management Practices. As part of routine inspection activities, the City’s contracted inspector determines permit requirements and verifies observance of FOG Ordinance provisions. Additionally, information and training materials such as multi -language Best Management Practices posters, an ordinance summary, and lists of licensed grease waste haulers are provided to help FSEs comply with the FOG Ordinance.
Installation of grease interceptors is required at all FSEs that have the potential to generate FOG, unless a Conditional Waiver is granted. In the event an industrial discharger fails to comply with the requirements of the FOG Control Ordinance, Director of Public Works takes immediate enforcement action by applying one or more sections of the Ordinance included in Appendix 2 and identified in Table 3 Legal Authority Checklist.
7.9 Monitoring and Reporting Plan Requirements
The September 2013 MRP did not change any of the requirements of the previously adopted SSS WDR for this element.
7.10 References
City of Manhattan Beach Municipal Code, Title 5, Sanitation and Health – Chapter 38 https://www.municode.com/library/ca/manhattan_beach/codes/code_of_ordinances?no deId=TIT5SAHE_CH5.38FAOIGRMADICO
City of Manhattan Beach SSMP
40 Chapter 8 System Evaluation and Capacity Analysis Plan (SECAP)
This chapter of the SSMP discusses the capital improvement plan along with evaluations, design criteria, and analysis of the sewer system elements to comply with the SSMP requirements. This section fulfills the requirement of SWRCB SSMP Element 8 – System Evaluation and Capacity Assurance Plan.
8.1 Regulatory Requirements
According to State Water Resources Control Board Order No. 2006-003 Item 13 (viii), the enrollee shall prepare and implement a capital improvement plan (CIP) that will provide hydraulic capacity of key sanitary sewer system elements for dry weather peak flow conditions, as well as the appropriate design storm or wet weather event. At a minimum, the plan must include:
a. Evaluation: Actions needed to evaluate those portions of the sanitary sewer system that are experiencing or contributing to an SSO discharge caused by hydraulic deficiency. The evaluation must provide estimates of peak flows (including flows from SSOs that escape from the system) associated with conditions similar to those causing overflow events, estimates of the capacity of key system components, hydraulic deficiencies (including components of the system with limiting capacity) and the major sources that contribute to the peak flows associated with overflow events; b. Design Criteria: Where design criteria do not exist or are deficient, undertake the evaluation identified in “a” above to establish appropriate design criteria; and c. Capacity Enhancement Measures: The steps needed to establish a short - and long- term capital improvement plan (CIP) to address identified hydraulic deficiencies including prioritization, alternatives analysis, and schedules. The CIP may include increases in pipe size, I/I reduction programs, increases and redundancy in pumping capacity, and storage facilities. The CIP shall include an implementation schedule and shall identify sources of funding.
d. Schedule: The Enrollee shall develop a schedule of completion dates for all portions of the capital improvement program developed in (a-c) above. This schedule shall be reviewed and updated consistent with the SSMP review and update requirements as described in Section D.14.
8.2 Sanitary Sewer System Evaluation
To perf orm a detailed evaluation of the capacity of the sewer collection system, it is convenient to create a mathematical model that is capable of simulating the operating characteristics of the system. The simulations for this study were performed on a Microsoft Windows based computer utilizing software designed for the analysis of sewer systems.
The software selected for this study is InfoSewer. It is an ArcGIS-based computer program with the ability to perform steady state analyses of the flows in the sewer sy stem.
InfoSewer offers direct ArcGIS integration allowing GIS analysis and hydraulic modeling to exist in a single environment. The program also manages and maintains the database that stores the sewer analysis input and output results. Manning’s Equation is used for depth of flow calculations in the gravity sewer pipes. Technical information related to Section 8.2 is included in Appendix 6.
City of Manhattan Beach SSMP
41 8.3 Design Criteria
Establishing performance standards is an important part of evaluating a wastewater collection system, as it forms the basis for system analysis and system improvement recommendations. These standards include methodology for estimating wastewater design flows and minimum design standards for the collection system pipes pump stations, and force mains.
Average wastewater flows can be reasonably estimated from land use and their corresponding unit flow factors. The results are then compared to measured flows.
Peaking factors are needed for estimating peak dry weather and perk wet weather flows.
Peak wet weather flows include an allowance for inflow and infiltration.
Collection system design standards include minimum pipe size, minimum flow velocity and depth of flow to pipe diameter ration. Pump station criteria include the capaci ty and number of pumps, wet wells and force main sizes, redundancy, emergency power, remote monitoring capabilities, as well as safety and regulatory agency requirements. Finally, facility useful lives are needed for adequately scheduling replacement of th e aging infrastructure.
A comprehensive set of criteria for planning and design of new sewers, pump stations, force mains, and appurtenances, and for the rehabilitation of existing sewers are used to address:
• Flow Monitoring
• Unit Flow Factors
• Peaking Factors – Dry Weather and Wet Weather
• Inflow and Infiltration
• Sewer Design Criteria
• Pump Station Design Criteria – wet wells, pumps, dry well, force mains, SCADA • Service Life of Pipe and Lift Station Equipment
• Sewer System Operation and Maintenance
Technical information related to Section 8.2 is included in Appendices 5, 6, & 7.
8.4 Capacity Enhancement Measures
The primary goal of the Capital Improvement Program (CIP) is to provide the City of Manhattan Beach with a long-range planning tool for implementing its sewer infrastructure improvements in an orderly manner and a basis for financing of these improvements. To accomplish this goal, the program is phased based upon the implementation cost of the facilities, the quantity of work the City can reasonably administer each year, and the funds available for these projects.
Capital Improvement Projects Priorities
The capital improvement projects were selected primarily with consideration of the health and safety of the public and protection of the environment by minimizing the possibility of City of Manhattan Beach SSMP
42 overflows. The projects that will eliminate the capacity deficiencies in the gravity collection system are prioritized based upon the hydraulic analyses conducted. As the City completes CCTV inspection of the system, severe and major defects identified should be incorporated into the CIP and addressed. When the CCTV inspection is completed and a full condition assessment has been conducted, the capital improvement project priorities should be reevaluated.
Collection System Capacity Improvement Projects
The collection system capacity improvement projects include the areas identified with a capacity deficiency in the hydraulic model when pump capacities were implemented. It is recommended that the identified locations be flow monitored to verify the d/D ratios prior to implementing any replacement projects. Operations staff has not indicated that these areas are a problem. Therefore, until the deficiencies are verified in the field, these projects are considered low in priority. Details of the project locations are presented in Appendix 6.
Collection System Condition Improvement Projects
The condition improvement projects are prioritized solely on the condition of the pipe as determined from reviews of the CCTV recordings. The condition deficiencies with critical structural damage and severe obstructions were given the highest priority. Sewer pipes with conditions categorized as “Severe” or “Major” and manholes categorized as in poor condition are in cluded in the recommended improvements. Details of the projects are presented Appendix 7.
The planning level recommendations are based upon the ranking and pipe defects from the CCTV inspection reports, and reviews of recordings. It may be possible to reline, repair or perform root treatment on some of the existing gravity pipes, in lieu of replacing them.
Actual improvements should be designed based upon further detailed reviews of each recording, taking into consideration other factors such as location, age, capacity of the pipe, existing utilities, and concurrent infrastructure construction projects. The useful life gained from replacing the deficient facilities will be longer than repairs and relining projects. Root treatment is usually a temporary solution. Unless the source is removed, it is likely that the roots will get thicker as time passes and the root intrusion will continue until the pipe is replaced.
Pump Station Improvements
The recommended pump station capital improvement projects have been based upon condition assessment of each facility, capacity analysis, and conformance with the adopted criteria. The implementation priorities should be based upon the likelihood of a failure that may result in a spill, the volume of spill, and its impact o n the public and the environment. The condition assessment and analysis results are described in Appendix
5. City of Manhattan Beach SSMP
43 Capital Improvement Program
The Capital Improvement Program is developed based upon the results of the hydraulic analyses and the established priorities. The recommended improvement project locations and cost estimates are included in Appendix 9. Replacement costs are generally more conservative and will therefore allow the City more flexibility for each project. Preliminary design studies should be conducted utilizing detailed utility information to identify and evaluate project alternatives such as parallel pipes and/or diversions prior to final design.
When sewers are replaced, they should be relocated into the walkways or right-of-ways as much as possible if they are currently in a location that cannot be easily accessed.
The City of Manhattan Beach is largely occupied and there are many existing utilities to consider. Therefore, the costs of replacing sewer facilities will be generally higher than in an area that is undeveloped. The recommended projects have been based upon the best information currently available. It should be updated as new information becomes available from sources such as CCTV inspections and from maintenance crew observations. The project priorities may be revised to correspond to changed conditions, such as impending facility failures, or to take advantage of concurrent construction such as street paving projects or adjacent infrastructure work. Some of the projects recommended are small and it may not be feasible to implement them as a single project.
Therefore, several projects should be combined and bid as a package. Some of the projects may be broken down into smaller components to fit the City’s budgetary and other obligations. Related information is included in Appendix 9 & 11.
8.5 Completion Schedule
The City’s rolling Five -Year Capital Improvement Program is reviewed and updated annually and lists all capital improvement projects scheduled for implementation during the following 5 years. Inclusion in the CIP is determined by a risk -based prioritization system.
Due to the CIP deficiency violation from the SWRCB 2015 inspections, the priority strategy for specific projects was developed and executed through the rolling 5 -year CIP. The strategy is based on the Wastewater Master Plan recommendations and involved construction of a combination of projects, all of which included Grade 5 Spot Repairs, Grade 5 Line Replacements and a sequenced replacement of six Sewer Lift Statio ns. All of the priority projects identified in the Master Plan that have been completed up to October 2015:
• Fiscal Year 10/11 – spot repairs
• Fiscal Year 11/12 – 1,820 lf of vitrified clay pipe @ 3 locations and 60 manhole rehabilitation, repair and/or replacement
• Fiscal Year 12/13 – 540 lf of vitrified clay pipe @ 34 locations The City’s Completed Priority Projects are included in Appendix 16.
City of Manhattan Beach SSMP
44 The most recent adoption of the 2021-2026 Capital Implement Plan includes carryover and new projects. These include:
• Annual Rehabilitation of Gravity Sewer Mains
• Poinsettia Sewage Lift Station Replacement and Force Main Replacement • Pacific Lift Station Upgrade, Emergency Storage, and Force Main Replacement • Utility Telemetry
• Voorhees Lift Station Upgrade, Emergency Storage, and Force Main Replacement • Meadows Lift Station Upgrade, Emergency Storage, and Force Main Replacement • Wastewater Masterplan Update
• Palm Lift Station Upgrade, Emergency Storage, and Force Main Replacement • City Hall Lift Station Upgrade, Emergency Storage, and Force Main Replacement
The City of Manhattan Beach Capital Improvement Plan (CIP) for wastewater projects is included in Appendix 11.
8.6 References
City of Manhattan Beach Wastewater Master Plan (Sections 6, 7, 8, & 10) http://www.citymb.info/city-officials/public-works/utilities-division/master-plans
City of Manhattan Beach Capital Improvement Plan (Appendix 11) http://www.citymb.info/city-officials/public-works/capital-improvement-program
City of Manhattan Beach SSMP
45 Chapter 9 Monitoring, Measurement and Program Modifications
This chapter of the SSMP discusses the monitoring, measurement, and program modifications to comply with the SSMP requirements. This section fulfills the requirement of SWRCB SSMP Element 9 – Monitoring, Measurement, and Program Modifications.
9.1 Regulatory Requirements
According to State Water Resources Control Board Order No. 2006 -003 Item 13 (ix), the enrollee shall:
a. Maintain relevant information that can be used to establish and prioritize appropriate SSMP activities;
b. Monitor the implementation and, where appropriate, measure the effectiveness of each element of the SSMP;
c. Assess the success of the preventative maintenance program; d. Update program elements, as appropriate, based on monitoring or performance evaluations;
e. Identify and illustrate SSO trends, including: frequency, location, and volume.
9.2 Information Maintenance
The City has multiple ongoing programs that support the collection and management of data and information essential to successful implementation of its Sewer System Management Plan (SSMP). Major SSMP activities are established and prioritized as follows:
Information Management Systems
The City’s information management system is an integral and essential element of the operation and maintenance program. All attributes of each sewer segment are included in a comprehensive inventory database. Information regarding all maintenance activities, sewer condition, overflows, and odor complaints is entered into the database. This information is routinely evaluated to doc ument maintenance needs, identify problem locations, and assist in analysis of overflow events and odor complaints. This data is available to quickly identify and visualize problem areas, communicate actual condition and maintenance needs to operation and maintenance staff, prioritizes cleaning and root removal activities, and provide for corrective measures. CCTV records housed in the GIS data base are a primary tool used to prioritize and schedule sewer assessments and maintenance activities in their preventive maintenance program.
Sewer Condition Assessment
To assess the condition of CCTV inspected sewers, the City uses the National Association of Sewer Service Company (NASSCO) Pipeline Assessment and Certification Program (PACP) coding procedures, which utilized a five -category rating system based on the types and severity of defects. They range from 1 (excellent) to 5 (Immediate Attention) condition. The condition ratings trigger follow -up actions that could include increased monitoring and maintenance to keep a problem sewer fully operational while a capital City of Manhattan Beach SSMP
46 improvement project is being developed and implemented to provide long -term solution.
Rehabilitation or replacement projects are developed and scheduled for implementation on a prioritized basis with other identified needs. Category 1 and 2 sewers are in excellent to good condition and are scheduled for continued inspections and monitoring on 10-year cycles. Category 3 condition sewers are considered to be in fair condition and are scheduled for foll ow-up inspections once every five years. Category 4 condition sewers are considered in poor condition are closely monitored and are included in the Wastewater Capital Improvement Program (WCIP) for replacement or rehabilitation within five years.
Increased preventive measures are taken for Category D condition sewers, as appropriate, to avoid emergency situations and follow -up inspections are conducted annually. Category 5 condition sewers are considered to be in need of immediate action.
These are sewers w here a pipe failure has already occurred or there is a full flow obstruction. Condition E sewers are immediately repaired and restored to condition A or B sewers.
Operation and Maintenance Program
The City has an extensive proactive and preventive maintenance program for its collection system. Maintenance is performed by five Wastewater Division staff. Preventive maintenance is focused on critical and problematic areas. The critical sewers are identified, prioritized and scheduled for maintenance based on a comprehensive review of maintenance history and system characteristics of all sewers in the City including overflows, blockages, excessive maintenance, age, pipe material, and condition assessment records.
In an effort to prevent overflows, flow monitor ing and CCTV records are reviewed to identify potential weaknesses in the system. Sewers that are in poor condition are identified through this process. These assessment activities may trigger further reviews to determine cause and/or may trigger immediate or accelerated corrective actions.
Maintenance priorities are set based on the relative severity of the problem. The City has implemented the proactive maintenance program where all sewer lines are jetted twice per year and “hot spots” are jetted once per month. The City’s lift stations are inspected, and wet wells are cleaned twice weekly. Hot Spots included in Appendix I and Appendix-
8. Overflow Emergency Response
The Utilities Manager and staff meet monthly to review emergency response actions and collaborate on methods and procedures that will improve performance. Aggressive performance standards for timely response to sewer overflows are established and communicated to the overflow response team. Response protocol is reviewed periodically and updated as needed based on a review of established and actual response times.
9.3 SSMP Implementation and Effectiveness Monitoring
The City’s SSMP is a well-integrated plan with each element designed to complement and support the other elements. Each year as a part of the City’s rolling Five -Year Capital Improvement Program, the SSMP goals are set, the deliverables required to meet goals are defined and prioritized, lead and support staff and resources are assigned, and progress is measured and reported to ensure the City is meeting or exceeding goals and City of Manhattan Beach SSMP
47 achieving full compliance with the SSMP requirements. Overall SSMP performance is evaluated and reported to management quarterly, and annually following the end of each fiscal year. Any plan updates necessary to enhance the SSMP performance are identified and become a part of the following year’s rolling Five-Year Capital Improvement Program.
9.4 Assessment of Preventative Maintenance Program
The City uses a variety of metrics to measure the effectiveness of different SSMP components. Productivity standards for the Operation and Maintenance Program, for example, use footage/mileage goals for Cleaning and CCTV activities. Data is recorded for each crew daily. Productivity can be assessed for time periods ranging from an hour to a year, and for individuals or for the division. Data recorded in the field is compiled into an Access database and extracted into weekly, monthly, and yearly reports. SSO data is an important measure of sewer system performance. The frequency, location, and volume of SSOs is often used to determine how resources will be allocated. For example, Smart Cover® manhole lids have been strategically placed in areas of the City more prone to overflows. Data will also be used to recalibrate the frequency of cleaning activity for problem areas, or sewer "hot spots." Sewer system management is regularly evaluated for effectiveness and when needed, protocols are updated to produce more favorable outcomes. The City utilizes community outreach via the City website. Additionally, residents are notified prior to a project starting.
9.5 Program Modifications/Updates
This section lists some examples of ongoing monitoring and review processes that are part of the City’s system performance evaluation and continual improvement.
Annual Review of Preventive Maintenance
On an annual basis a comprehensive review of the maintenance program is conducted.
The critical sewers are identified, prioritized and scheduled for maintenance based on a comprehensive review of maintenance history and system characteristics of all sewers in the City including overflows, blockages, excessive maintenance, age, pipe material and condition assessment records.
In an effort to prevent overflows, CCTV records are reviewed to identify potential weaknesses in the system. Sewer locations that are in poor condition are identified through this process. These assessment activities may trigger further reviews to determine cause and/or may trigger immediate or accelerated corrective actions.
Maintenance priorities are set based on the relative severity of the problem.
Fats, Oils, and Grease (FOG) Control Program
The City is implementing a robust program that includes annual Fats, Oils a nd Grease restaurant inspections, and ongoing user education and involvement. As a result, amendments and improvements are made to the program with active support of the FSEs.
The program goal is to eliminate all preventable sewer overflows caused by grease.
City of Manhattan Beach SSMP
48 Root Control Program
Roots are the main issue the City faces, since the sandy soil conditions allow roots to grow quickly in search of a water source. The City performs routine mechanical root removal as an extensive cleaning schedule especially in areas of known root intrusion. This schedule has prevented major root issues such as veil -type and root balls originating from private laterals. A recent CUES camera has been purchased by the City to investigate locations of hotspot causes and help maintenance staff determine the specific locations that need root control.
Construction
To avoid construction related sewer overflows to comply with the City’s “zero [construction] spill” policy requires that a spill prevention and response plan be developed and implemented for all sewer construction projects. The City‘s zero spill policy is documented in the “Standard Specifications for Public Works Construction (Green Book)”.
9.6 Identification and Illustration of SSO Trends
SSO trends are id entified and tracked through a state -of-the art GIS tracking system.
When complaints are called in, they are uploaded to a master database and plotted on a City-wide map. The City’s information management system is an integral part of the operation and mai ntenance program. All attributes of each sewer pipe gravity and pressure segment are included in a comprehensive inventory database. Information regarding each new overflow and odor complaint is entered into a maintenance management database. This information is evaluated to document locations, causes, and frequency of overflows and odors. This data is overlain on a GIS base map of the sewer system to quickly identify and visualize problem areas; communicate conditions and needs to City policy makers and ma nagement; and prioritize maintenance activities, urgent and emergency repairs, and mid- and long-term solutions.
9.7 Monitoring and Reporting Plan Requirements
The September 2013 MRP added an additional requirement related to the program modifications issue. The 2013 MRP states: “Records documenting all changes made to the SSMP since its last certification indicating when a subsection(s) of the SSMP was changed and/or updated and who authorized the change or update. These records shall be attached to the SSMP.”
These changes may relate to the results of the system’s performance evaluation. Other changes may be enacted by an Enrollee after an SSMP audit is performed. The changes are to be documented, whenever they are made, as described in the MRP. An Enrollee may easily keep these actions and changes documented through the use of a simple “Change Log” that may provide a brief description and date of any SSMP changes, as an appendix to the SSMP. A SSMP S ample Change Log is attached in Appendix D for convenience.
City of Manhattan Beach SSMP
49 Chapter 10 SSMP Program Audits
This section fulfills the requirement of SWRCB SSMP Element 10 – SSMP Program Audits.
10.1 Regulatory Requirements
According to State Water Resources Control Board Order No. 2006 -003 Item 13 (x), the enrollee shall conduct periodic internal audits, appropriate to the size of the system and the number of SSOs. At a minimum, these audits must occur every two years and a report must be prepared and kept on file . This audit shall focus on ev aluating the effectiveness of the SSMP and the Enrollee’s compliance with the SSMP requirements identified in this subsection, including identification of any deficiencies in the SSMP and steps to correct them.
10.2 SSMP Program Audits
Audit and benchmarking programs are among primary City strategies in accomplishing its mission to protect public health and the environment and meeting goals. As a part of the City’s continuing performance measurement, the City’s SSMP undergoes ongoing reviews at all levels of the organizati on having authorities and respon sibilities in the SSMP implementation shown in Chapter 2 Organization of this SSMP. These reviews culminate in internal (self) audits of the SSMP that result in biennial audit reports. As a part of these audits, all parts and sub-parts of the SSMP are reviewed critic ally with regards to their ability to effectively and efficiently meet the State General Waste Discharge Requirements (GWDR) and comply with City policies.
Each year as a part of City’s Sewer Section Five-Year Capital Improvement Plan:
SSMP goals are set
Deliverables that are required to meet goals defined and prioritized Lead and support staff and resources necessary to complete deliverables assigned Progress measured and reported on an ongoing basis to ensure fu ll and timely completion of deliverables.
Any gaps between targeted results and actual progress are ident ified or anticipated and mitigation measures developed and implemented to close or avoid any performance gaps.
The overall SSMP performance is evaluated and reported to manag ement annually following the end of each fiscal year. Any plan updates necessa ry to enhance the SSMP performance are identified and included as a part of the following year’s City’s Five-Year Capital Improvement Plan.
See Appendix E for self-audit report dated 12/29/2021
City of Manhattan Beach SSMP
50 10.3 Monitoring and Recording
The September 2013 MRP did not c hange any of the requirements o f the previously adopted SSS WDR for this element.
10.4 Self-Monitoring and Plan Modification
Performance measures and benchm arks are established through ong oing performance review. Experienced personnel audit the SSMP at least once ever y two years by evaluating the effectiveness of e ach SSMP element and making re commendations for improvements and updates as appropr iate. The SSMP is updated by incorporating adopted recommendations. Audit reports and related materials ar e maintained in a comprehensive hard copy and el ectronic document tracking and ma nagement system.
The following are examples of ongoing self-monitoring and plan modification:
Overflow Emergency Response
The Utilities Manager and Sewer Section Staff meet quarterly to review emergency response actions and collaborate on methods and procedures that will improve performance. Performance standards are developed, published, an d communicated to relevant staff. Actual response times are compared to standards; changes are made and documented and staff retrained as appropriate.
Hydraulic Models
The City of Manhattan Beach Wastew ater Master Plan included hyd raulic modeling and collection system capacity analysis to model and assesses the h ydraulic performance of its network of pipes, flow splits, and pumping plants, and to p redict future flow based on growth projections.
Structural Condition Assessment
Fifty percent of the City’s sewer lines, and manholes have been inspected by closed circuit television; the remaining fifty percent will be inspected over the next five years. Based on these inspections, the condition of each sewer line and manhole have been assessed and rated in a five-category conditi on ranking. The ranking system is used to prioritize and schedule future inspections and rehabilitation or replacement p lanning studies. Changes are made to work priorities and project delivery schedules base d on the findings of field investigations and criticality of system needs.
Maintenance Management Approaches
Priority is given to sewers within sewer sheds that return the most benefit for the maintenance effort. Data are accumulated on maintenance hot spo ts and displayed on GIS maps to display locations requiring additional attention. T his information forms the basis for prioritizing cleani ng, inspection, and rehabilitation . All maintenance holes are physically inspected biennially, all sewers cleaned bi- annuall y, and operationally challenged sewers are cleaned mo re often as needed. This ongoin g monitoring and adjustment process will work to optimize staff efficiency and s ystem performance.
City of Manhattan Beach SSMP
51 Effectiveness of root control is also monitored and changes to cleaning schedules made as needed.
• Sewer Design Criteria and Standard Plans and Specifications The City’s Public Works Department, Engineering Division, oversees design, construction, start-up and optimization of public works sewer system projects. Design standards, specifications and standard details are continuously monitored for currency and effectiveness. Staff input based on field experience is provided and reviewed systematically. Appropriate changes are incorporated into the City’s standards and work in progress as needed.
• Construction Activities
In another effort to avoid SSO’s, the City developed and implemented a requirement that a spill prevention and response plan has to be developed and implemented for all wastewater construction projects.
City of Manhattan Beach SSMP
52 Chapter 11 Communication Program
This section fulfills the requirement of SWRCB SSMP Element 11 – Communication Program.
11.1 Regulatory Requirements
According to State Water Resources Control Board Order No. 2006 -003 Item 13 (ix),the enrollee shall communicate on a regular basis with the public on the development, implementation, and performance of its SSMP. The communication system shall provide the public the opportunity to provide input to the Enrollee as the program is developed and implemented. The Enrollee shall also create a plan of communication with systems that are tributary and/or satellite to the Enrollee’s sanitary sewer system.
11.2 Public Communication
The City performs community outreach which includes mailing of pamphlets to Food Service Establishments; website SSMP information; handing out materials at community fairs; advisories and press releases; and toll-free help lines. Outreach events are held for the general public and Food Service Establishments to familiarize them with the Fats, Oils, and Grease (FOG) Control Program. Electronic versions of the FOG Ordinance and FOG Source Control Manual are also made available on the City’s website.
The following are examples of the community outreach activities within the City’s SSMP:
• FOG Control Program
The FOG Ordinance and FOG Source Control Manual outreach is geared towards FSEs and businesses.
• Private Lateral Sewer Maintenance and Root Control Outreach This outreach is focused in the areas of City designated as “root hot spots” where SSOs may occur due to blockages caused by roots. Properties in the “root hot spot” areas are sent pamphlets which contain information regarding causes of root growth in private laterals, prevention methods and proper operation and maintenance for private laterals.
• Capital Improvement Projects (CIPs)
Capital Improvement Projects (CIPs) are listed in the Wastewater Master Plan and are advertised in the community through updates to t he City website. Outreach is also conducted by meeting with local businesses and community. These activities ensure that the communities are informed about projects in their neighborhoods.
11.3 Monitoring and Reporting Plan Requirements
The September 2013 MRP did not change any of the requirements of the previously adopted SSS WDR for this Element.
City of Manhattan Beach SSMP
53 Appendices
City of Manhattan Beach SSMP
54 Appendix A – State Water Resources Control Board Order No. 2006-003-DWQ Statewide General WDR For Sanitary Sewer Systems
State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
5/2/06
STATE WATER RESOURCES CONTROL BOARD
ORDER NO. 2006-0003-DWQ
STATEWIDE GENERAL WASTE DISCHARGE REQUIREMENTS FOR SANITARY
SEWER SYSTEMS
The State Water Resources Control Board, hereinafter referred to as “State Water Board”, finds that:
1. All federal and state agencies, municipalities, counties, districts, and other public entities that own or operate sanitary sewer systems greater than one mile in length that collect and/or convey untreated or partially treated wastewater to a publicly owned treatment facility in the State of California are required to comply with the terms of this Order. Such entities are hereinafter referred to as “Enrollees”.
2. Sanitary sewer overflows (SSOs) are overflows from sanitary sewer systems of domestic wastewater, as well as industrial and commercial wastewater, depending on the pattern of land uses in the area served by the sanitary sewer system. SSOs often contain high levels of suspended solids, pathogenic organisms, toxic pollutants, nutrients, oxygen-demanding organic compounds, oil and grease and other pollutants.
SSOs may cause a public nuisance, particularly when raw untreated wastewater is discharged to areas with high public exposure, such as streets or surface waters used for drinking, fishing, or body contact recreation. SSOs may pollute surface or ground waters, threaten public health, adversely affect aquatic life, and impair the recreational use and aesthetic enjoyment of surface waters.
3. 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. 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.
4. Major causes of SSOs include: grease blockages, root blockages, sewer line flood damage, manhole structure failures, vandalism, pump station mechanical failures, power outages, excessive storm or ground water inflow/infiltration, debris blockages, sanitary sewer system age and construction material failures, lack of proper operation and maintenance, insufficient capacity and contractor- caused damages. Many SSOs are preventable with adequate and appropriate facilities, source control measures and operation and maintenance of the sanitary sewer system.
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SEWER SYSTEM MANAGEMENT PLANS
5. To facilitate proper funding and management of sanitary sewer systems, each Enrollee must develop and implement a system-specific Sewer System Management Plan (SSMP). To be effective, SSMPs must include provisions to provide proper and efficient management, operation, and maintenance of sanitary sewer systems, while taking into consideration risk management and cost benefit analysis. Additionally, an SSMP must contain a spill response plan that establishes standard procedures for immediate response to an SSO in a manner designed to minimize water quality impacts and potential nuisance conditions.
6. Many local public agencies in California have already developed SSMPs and implemented measures to reduce SSOs. These entities can build upon their existing efforts to establish a comprehensive SSMP consistent with this Order.
Others, however, still require technical assistance and, in some cases, funding to improve sanitary sewer system operation and maintenance in order to reduce SSOs.
7. SSMP certification by technically qualified and experienced persons can provide a useful and cost-effective means for ensuring that SSMPs are developed and implemented appropriately.
8. It is the State Water Board’s intent to gather additional information on the causes and sources of SSOs to augment existing information and to determine the full extent of SSOs and consequent public health and/or environmental impacts occurring in the State.
9. Both uniform SSO reporting and a centralized statewide electronic database are needed to collect information to allow the State Water Board and Regional Water Quality Control Boards (Regional Water Boards) to effectively analyze the extent of SSOs statewide and their potential impacts on beneficial uses and public health.
The monitoring and reporting program required by this Order and the attached Monitoring and Reporting Program No. 2006-0003-DWQ, are necessary to assure compliance with these waste discharge requirements (WDRs).
10. Information regarding SSOs must be provided to Regional Water Boards and other regulatory agencies in a timely manner and be made available to the public in a complete, concise, and timely fashion.
11. Some Regional Water Boards have issued WDRs or WDRs that serve as National Pollution Discharge Elimination System (NPDES) permits to sanitary sewer system owners/operators within their jurisdictions. This Order establishes minimum requirements to prevent SSOs. Although it is the State Water Board’s intent that this Order be the primary regulatory mechanism for sanitary sewer systems statewide, Regional Water Boards may issue more stringent or more prescriptive WDRs for sanitary sewer systems. Upon issuance or reissuance of a Regional Water Board’s WDRs for a system subject to this Order, the Regional State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
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Water Board shall coordinate its requirements with stated requirements within this Order, to identify requirements that are more stringent, to remove requirements that are less stringent than this Order, and to provide consistency in reporting.
REGULATORY CONSIDERATIONS
12. California Water Code section 13263 provides that the State Water Board may prescribe general WDRs 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 discharge requirements than individual discharge requirements.
This Order establishes requirements for a class of operations, facilities, and discharges that are similar throughout the state.
13. The issuance of general WDRs to the Enrollees will:
a) Reduce the administrative burden of issuing individual WDRs to each Enrollee;
b) Provide for a unified statewide approach for the reporting and database tracking of SSOs;
c) Establish consistent and uniform requirements for SSMP development and implementation;
d) Provide statewide consistency in reporting; and
e) Facilitate consistent enforcement for violations.
14. The beneficial uses of surface waters that can be impaired by SSOs include, but are not limited to, aquatic life, drinking water supply, body contact and non- contact recreation, and aesthetics. The beneficial uses of ground water that can be impaired include, but are not limited to, drinking water and agricultural supply.
Surface and ground waters throughout the state support these uses to varying degrees.
15. The implementation of requirements set forth in this Order will ensure 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 region and take into account the environmental characteristics of 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 in the area, costs associated with compliance with these State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
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requirements, the need for developing housing within California, and the need to develop and use recycled water.
16. The Federal Clean Water Act largely prohibits any discharge of pollutants from a point source to waters of the United States except as authorized under an NPDES permit. In general, any point source discharge of sewage effluent to waters of the United States must comply with technology-based, secondary treatment standards, at a minimum, and any more stringent requirements necessary to meet applicable water quality standards and other requirements. Hence, the unpermitted discharge of wastewater from a sanitary sewer system to waters of the United States is illegal under the Clean Water Act. In addition, many Basin Plans adopted by the Regional Water Boards contain discharge prohibitions that apply to the discharge of untreated or partially treated wastewater. Finally, the California Water Code generally prohibits the discharge of waste to land prior to the filing of any required report of waste discharge and the subsequent issuance of either WDRs or a waiver of WDRs.
17. California Water Code section 13263 requires a water board to, after any necessary hearing, prescribe requirements as to the nature of any proposed discharge, existing discharge, or material change in an existing discharge. The requirements shall, among other things, take into consideration the need to prevent nuisance.
18. California Water Code section 13050, subdivision (m), defines nuisance 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.
19. This Order is consistent with State Water Board Resolution No. 68-16 (Statement of Policy with Respect to Maintaining High Quality of Waters in California) in that the Order imposes conditions to prevent impacts to water quality, does not allow the degradation of water quality, will not unreasonably affect beneficial uses of water, and will not result in water quality less than prescribed in State Water Board or Regional Water Board plans and policies.
20. The action to adopt this General Order is exempt from the California Environmental Quality Act (Public Resources Code §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., tit. 14, §15308). In addition, the action to adopt this Order is State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
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exempt from CEQA pursuant to Cal.Code Regs., title 14, §15301 to the extent that it applies to existing sanitary sewer collection systems that constitute “existing facilities” as that term is used in Section 15301, and §15302, to the extent that it results in the repair or replacement of existing systems involving negligible or no expansion of capacity.
21. The Fact Sheet, which is incorporated by reference in the Order, contains supplemental information that was also considered in establishing these requirements.
22. The State Water Board has notified all affected public agencies and all known interested persons of the intent to prescribe general WDRs that require Enrollees to develop SSMPs and to report all SSOs.
23. The State Water Board conducted a public hearing on February 8, 2006, to receive oral and written comments on the draft order. The State Water Board received and considered, at its May 2, 2006, meeting, additional public comments on substantial changes made to the proposed general WDRs following the February 8, 2006, public hearing. The State Water Board has considered all comments pertaining to the proposed general WDRs.
IT IS HEREBY ORDERED, that pursuant to California Water Code section 13263, the Enrollees, their agents, successors, and assigns, in order to meet the provisions contained in Division 7 of the California Water Code and regulations adopted hereunder, shall comply with the following:
A. DEFINITIONS
1. Sanitary sewer overflow (SSO) - Any overflow, spill, release, discharge or diversion of untreated or partially treated wastewater from a sanitary sewer system. SSOs include:
(i) Overflows or releases of untreated or partially treated wastewater that reach waters of the United States;
(ii) Overflows or releases of untreated or partially treated wastewater that do not reach waters of the United States; and
(iii) Wastewater backups into buildings and on private property that are caused by blockages or flow conditions within the publicly owned portion of a sanitary sewer system.
2. 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.
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For purposes of this Order, sanitary sewer systems include only those systems owned by public agencies that are comprised of more than one mile of pipes or sewer lines.
3. Enrollee - A federal or state agency, municipality, county, district, 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 this Order.
4. SSO Reporting 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.
5. Untreated or partially treated wastewater – Any volume of waste discharged from the sanitary sewer system upstream of a wastewater treatment plant headworks.
6. 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 system is tributary.
7. Nuisance - California Water Code section 13050, subdivision (m), defines nuisance 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.
B. APPLICATION REQUIREMENTS
1. Deadlines for Application – All public agencies that currently own or operate sanitary sewer systems within the State of California must apply for coverage under the general WDRs within six (6) months of the date of adoption of the general WDRs. Additionally, public agencies that acquire or assume responsibility for operating sanitary sewer systems after the date of adoption of this Order must apply for coverage under the general WDRs at least three (3) months prior to operation of those facilities.
2. Applications under the general WDRs – In order to apply for coverage pursuant to the general WDRs, a legally authorized representative for each agency must submit a complete application package. Within sixty (60) days of adoption of the State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
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general WDRs, State Water Board staff will send specific instructions on how to apply for coverage under the general WDRs to all known public agencies that own sanitary sewer systems. Agencies that do not receive notice may obtain applications and instructions online on the Water Board’s website.
3. Coverage under the general WDRs – Permit coverage will be in effect once a complete application package has been submitted and approved by the State Water Board’s Division of Water Quality.
C. PROHIBITIONS
1. Any SSO that results in a discharge of untreated or partially treated wastewater to waters of the United States is prohibited.
2. Any SSO that results in a discharge of untreated or partially treated wastewater that creates a nuisance as defined in California Water Code Section 13050(m) is prohibited.
D. PROVISIONS
1. The Enrollee must comply with all conditions of this Order. Any noncompliance with this Order constitutes a violation of the California Water Code and is grounds for enforcement action.
2. It is the intent of the State Water Board that sanitary sewer systems be regulated in a manner consistent with the general WDRs. Nothing in the general WDRs shall be:
(i) Interpreted or applied in a manner inconsistent with the Federal Clean Water Act, or supersede a more specific or more stringent state or federal requirement in an existing permit, regulation, or administrative/judicial order or Consent Decree;
(ii) Interpreted or applied to authorize an SSO that is illegal under either the Clean Water Act, an applicable Basin Plan prohibition or water quality standard, or the California Water Code;
(iii) Interpreted or applied to prohibit a Regional Water Board from issuing an individual NPDES permit or WDR, superseding this general WDR, for a sanitary sewer system, authorized under the Clean Water Act or California Water Code; or
(iv) Interpreted or applied to supersede any more specific or more stringent WDRs or enforcement order issued by a Regional Water Board.
3. The Enrollee shall take all feasible steps to eliminate SSOs. In the event that an SSO does occur, the Enrollee shall take all feasible steps to contain and mitigate the impacts of an SSO.
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4. In the event of an SSO, the Enrollee shall take all feasible steps to prevent untreated or partially treated wastewater from discharging from storm drains into flood control channels or waters of the United States by blocking the storm drainage system and by removing the wastewater from the storm drains.
5. All SSOs must be reported in accordance with Section G of the general WDRs.
6. In any enforcement action, the State and/or Regional Water Boards will consider the appropriate factors under the duly adopted State Water Board Enforcement Policy. And, consistent with the Enforcement Policy, the State and/or Regional Water Boards must consider the Enrollee’s efforts to contain, control, and mitigate SSOs when considering the California Water Code Section 13327 factors. In assessing these factors, the State and/or Regional Water Boards will also consider whether:
(i) The Enrollee has complied with the requirements of this Order, including requirements for reporting and developing and implementing a SSMP; (ii) The Enrollee can identify the cause or likely cause of the discharge event; (iii) There were no feasible alternatives to the discharge, such as temporary storage or retention of untreated wastewater, reduction of inflow and infiltration, use of adequate backup equipment, collecting and hauling of untreated wastewater to a treatment facility, or an increase in the capacity of the system as necessary to contain the design storm event identified in the SSMP. It is inappropriate to consider the lack of feasible alternatives, if the Enrollee does not implement a periodic or continuing process to identify and correct problems.
(iv) The discharge was exceptional, unintentional, temporary, and caused by factors beyond the reasonable control of the Enrollee;
(v) The discharge could have been prevented by the exercise of reasonable control described in a certified SSMP for:
· Proper management, operation and maintenance;
· Adequate treatment facilities, sanitary sewer system facilities, and/or components with an appropriate design capacity, to reasonably prevent SSOs (e.g., adequately enlarging treatment or collection facilities to accommodate growth, infiltration and inflow (I/I), etc.);
· Preventive maintenance (including cleaning and fats, oils, and grease (FOG) control);
· Installation of adequate backup equipment; and
· Inflow and infiltration prevention and control to the extent practicable.
(vi) The sanitary sewer system design capacity is appropriate to reasonably prevent SSOs.
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(vii) The Enrollee took all reasonable steps to stop and mitigate the impact of the discharge as soon as possible.
7. When a sanitary sewer overflow occurs, the Enrollee shall take all feasible steps and necessary remedial actions to 1) control or limit the volume of untreated or partially treated wastewater discharged, 2) terminate the discharge, and 3) recover as much of the wastewater discharged as possible for proper disposal, including any wash down water.
The Enrollee shall implement all remedial actions to the extent they may be applicable to the discharge and not inconsistent with an emergency response plan, including the following:
(i) Interception and rerouting of untreated or partially treated wastewater flows around the wastewater line failure;
(ii) Vacuum truck recovery of sanitary sewer overflows and wash down water; (iii) Cleanup of debris at the overflow site;
(iv) System modifications to prevent another SSO at the same location; (v) Adequate sampling to determine the nature and impact of the release; and (vi) Adequate public notification to protect the public from exposure to the SSO.
8. The Enrollee shall properly, manage, operate, and maintain all parts of the sanitary sewer system owned or operated by the Enrollee, and shall ensure that the system operators (including employees, contractors, or other agents) are adequately trained and possess adequate knowledge, skills, and abilities.
9. The Enrollee shall allocate adequate resources for the operation, maintenance, and repair of its sanitary sewer system, by establishing a proper rate structure, accounting mechanisms, and auditing procedures to ensure an adequate measure of revenues and expenditures. These procedures must be in compliance with applicable laws and regulations and comply with generally acceptable accounting practices.
10. The Enrollee shall provide adequate capacity to convey base flows and peak flows, including flows related to wet weather events. Capacity shall meet or exceed the design criteria as defined in the Enrollee’s System Evaluation and Capacity Assurance Plan for all parts of the sanitary sewer system owned or operated by the Enrollee.
11. The Enrollee shall develop and implement a written Sewer System Management Plan (SSMP) and make it available to the State and/or Regional Water Board upon request. A copy of this document must be publicly available at the Enrollee’s office and/or available on the Internet. This SSMP must be approved by the Enrollee’s governing board at a public meeting.
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12. In accordance with the California Business and Professions Code sections 6735, 7835, and 7835.1, all engineering and geologic evaluations and judgments shall be performed by or under the direction of registered professionals competent and proficient in the fields pertinent to the required activities. Specific elements of the SSMP that require professional evaluation and judgments shall be prepared by or under the direction of appropriately qualified professionals, and shall bear the professional(s)’ signature and stamp.
13. The mandatory elements of the SSMP are specified below. However, if the Enrollee believes that any element of this section is not appropriate or applicable to the Enrollee’s sanitary sewer system, the SSMP program does not need to address that element. The Enrollee must justify why that element is not applicable.
The SSMP must be approved by the deadlines listed in the SSMP Time Schedule below.
Sewer System Management Plan (SSMP)
(i)Goal: The goal of the SSMP is to provide a plan and schedule to properly manage, operate, and maintain all parts of the sanitary sewer system. This will help reduce and prevent SSOs, as well as mitigate any SSOs that do occur.
(ii)Organization: The SSMP must identify:
(a) The name of the responsible or authorized representative as described in Section J of this Order.
(b) The names and telephone numbers for management,
administrative, and maintenance positions responsible for implementing specific measures in the SSMP program. The SSMP must identify lines of authority through an organization chart or similar document with a narrative explanation; and
(c) The chain of communication for reporting SSOs, from receipt of a complaint or other information, including the person responsible for reporting SSOs to the State and Regional Water Board and other agencies if applicable (such as County Health Officer, County Environmental Health Agency, Regional Water Board, and/or State Office of Emergency Services (OES)).
(iii)Legal Authority: Each Enrollee must demonstrate, through sanitary sewer system use ordinances, service agreements, or other legally binding procedures, that it possesses the necessary legal authority to:
(a) Prevent illicit discharges into its sanitary sewer system (examples may include I/I, stormwater, chemical dumping, unauthorized debris and cut roots, etc.);
(b) Require that sewers and connections be properly designed and State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
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constructed;
(c) Ensure access for maintenance, inspection, or repairs for portions of the lateral owned or maintained by the Public Agency; (d) Limit the discharge of fats, oils, and grease and other debris that may cause blockages, and
(e) Enforce any violation of its sewer ordinances.
(iv)Operation and Maintenance Program. The SSMP must include those elements listed below that are appropriate and applicable to the Enrollee’s system:
(a) Maintain an up-to-date map of the sanitary sewer system, showing all gravity line segments and manholes, pumping facilities, pressure pipes and valves, and applicable stormwater conveyance facilities; (b) Describe routine preventive operation and maintenance activities by staff and contractors, including a system for scheduling regular maintenance and cleaning of the sanitary sewer system with more frequent cleaning and maintenance targeted at known problem areas. The Preventative Maintenance (PM) program should have a system to document scheduled and conducted activities, such as work orders;
(c) Develop a rehabilitation and replacement plan to identify and prioritize system deficiencies and implement short-term and long- term rehabilitation actions to address each deficiency. The program should include regular visual and TV inspections of manholes and sewer pipes, and a system for ranking the condition of sewer pipes and scheduling rehabilitation. Rehabilitation and replacement should focus on sewer pipes that are at risk of collapse or prone to more frequent blockages due to pipe defects. Finally, the rehabilitation and replacement plan should include a capital improvement plan that addresses proper management and
protection of the infrastructure assets. The plan shall include a time schedule for implementing the short- and long-term plans plus a schedule for developing the funds needed for the capital improvement plan;
(d) Provide training on a regular basis for staff in sanitary sewer system operations and maintenance, and require contractors to be appropriately trained; and
(e) Provide equipment and replacement part inventories, including identification of critical replacement parts.
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(v)Design and Performance Provisions:
(a) Design and construction standards and specifications for the installation of new sanitary sewer systems, pump stations and other appurtenances; and for the rehabilitation and repair of existing sanitary sewer systems; and
(b) Procedures and standards for inspecting and testing the installation of new sewers, pumps, and other appurtenances and for
rehabilitation and repair projects.
(vi)Overflow Emergency Response Plan - Each Enrollee shall develop and implement an overflow emergency response plan that identifies measures to protect public health and the environment. At a minimum, this plan must include the following:
(a) Proper notification procedures so that the primary responders and regulatory agencies are informed of all SSOs in a timely manner; (b) A program to ensure an appropriate response to all overflows; (c) Procedures to ensure prompt notification to appropriate regulatory agencies and other potentially affected entities (e.g. health agencies, Regional Water Boards, water suppliers, etc.) of all SSOs that potentially affect public health or reach the waters of the State in accordance with the MRP. All SSOs shall be reported in accordance with this MRP, the California Water Code, other State Law, and other applicable Regional Water Board WDRs or NPDES permit requirements. The SSMP should identify the officials who will receive immediate notification;
(d) Procedures to ensure that appropriate staff and contractor personnel are aware of and follow the Emergency Response Plan and are appropriately trained;
(e) Procedures to address emergency operations, such as traffic and crowd control and other necessary response activities; and (f) A program to ensure that all reasonable steps are taken to contain and prevent the discharge of untreated and partially treated wastewater to waters of the United States and to minimize or correct any adverse impact on the environment resulting from the SSOs, including such accelerated or additional monitoring as may be necessary to determine the nature and impact of the discharge.
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(vii)FOG Control Program: Each Enrollee shall evaluate its service area to determine whether a FOG control program is needed. If an Enrollee determines that a FOG program is not needed, the Enrollee must provide justification for why it is not needed. If FOG is found to be a problem, the Enrollee must prepare and implement a FOG source control program to reduce the amount of these substances discharged to the sanitary sewer system. This plan shall include the following as appropriate:
(a) An implementation plan and schedule for a public education outreach program that promotes proper disposal of FOG;
(b) A plan and schedule for the disposal of FOG generated within the sanitary sewer system service area. This may include a list of acceptable disposal facilities and/or additional facilities needed to adequately dispose of FOG generated within a sanitary sewer system service area;
(c) The legal authority to prohibit discharges to the system and identify measures to prevent SSOs and blockages caused by FOG;
(d) Requirements to install grease removal devices (such as traps or interceptors), design standards for the removal devices, maintenance requirements, BMP requirements, record keeping 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 establishment of a cleaning maintenance schedule for each section; and
(g) Development and implementation of source control measures for all sources of FOG discharged to the sanitary sewer system for each section identified in (f) above.
(viii)System Evaluation and Capacity Assurance Plan: The Enrollee shall prepare and implement a capital improvement plan (CIP) that will provide hydraulic capacity of key sanitary sewer system elements for dry weather peak flow conditions, as well as the appropriate design storm or wet weather event. At a minimum, the plan must include:
(a) Evaluation: Actions needed to evaluate those portions of the sanitary sewer system that are experiencing or contributing to an SSO discharge caused by hydraulic deficiency. The evaluation must provide estimates of peak flows (including flows from SSOs that escape from the system) associated with conditions similar to those causing overflow events, estimates of the capacity of key system components, hydraulic deficiencies (including components of the system with limiting capacity) and the major sources that contribute to the peak flows associated with overflow events; State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
5/2/06
(b) Design Criteria: Where design criteria do not exist or are deficient, undertake the evaluation identified in (a) above to establish appropriate design criteria; and
(c) Capacity Enhancement Measures: The steps needed to establish a short- and long-term CIP to address identified hydraulic deficiencies, including prioritization, alternatives analysis, and schedules. The CIP may include increases in pipe size, I/I reduction programs, increases and redundancy in pumping capacity, and storage facilities. The CIP shall include an implementation schedule and shall identify sources of funding.
(d) Schedule: The Enrollee shall develop a schedule of completion dates for all portions of the capital improvement program developed in (a)-(c) above. This schedule shall be reviewed and updated consistent with the SSMP review and update requirements as described in Section D. 14.
(ix)Monitoring, Measurement, and Program Modifications: The Enrollee shall:
(a) Maintain relevant information that can be used to
establish and prioritize appropriate SSMP activities;
(b) Monitor the implementation and, where appropriate,
measure the effectiveness of each element of the SSMP;
(c) Assess the success of the preventative maintenance
program;
(d) Update program elements, as appropriate, based on
monitoring or performance evaluations; and
(e) Identify and illustrate SSO trends, including: frequency, location, and volume.
(x)SSMP Program Audits - As part of the SSMP, the Enrollee shall conduct periodic internal audits, appropriate to the size of the system and the number of SSOs. At a minimum, these audits must occur every two years and a report must be prepared and kept on file. This audit shall focus on evaluating the effectiveness of the SSMP and the Enrollee’s compliance with the SSMP requirements identified in this subsection (D.13), including identification of any deficiencies in the SSMP and steps to correct them.
State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
5/2/06
(xi)Communication Program – The Enrollee shall communicate on a regular basis with the public on the development, implementation, and performance of its SSMP. The communication system shall provide the public the opportunity to provide input to the Enrollee as the program is developed and implemented.
The Enrollee shall also create a plan of communication with systems that are tributary and/or satellite to the Enrollee’s sanitary sewer system.
14. Both the SSMP and the Enrollee’s program to implement the SSMP must be certified by the Enrollee to be in compliance with the requirements set forth above and must be presented to the Enrollee’s governing board for approval at a public meeting. The Enrollee shall certify that the SSMP, and subparts thereof, are in compliance with the general WDRs within the time frames identified in the time schedule provided in subsection D.15, below.
In order to complete this certification, the Enrollee’s authorized representative must complete the certification portion in the Online SSO Database Questionnaire by checking the appropriate milestone box, printing and signing the automated form, and sending the form to:
State Water Resources Control Board
Division of Water Quality
Attn: SSO Program Manager
P.O. Box 100 Sacramento, CA 95812
The SSMP must be updated every five (5) years, and must include any significant program changes. Re-certification by the governing board of the Enrollee is required in accordance with D.14 when significant updates to the SSMP are made.
To complete the re-certification process, the Enrollee shall enter the data in the Online SSO Database and mail the form to the State Water Board, as described above.
15. The Enrollee shall comply with these requirements according to the following schedule. This time schedule does not supersede existing requirements or time schedules associated with other permits or regulatory requirements.
State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
5/2/06
Sewer System Management Plan Time Schedule
Task and Associated
Section
Completion Date
Population >
100,000
Population
between 100,000
and 10,000
Population
between 10,000
and 2,500
Population < 2,500
Application for Permit
Coverage
Section C
6 months after
WDRs Adoption
6 months after
WDRs Adoption
6 months after
WDRs Adoption
6 months after
WDRs Adoption
Reporting Program
Section G
6 months after
WDRs Adoption1
6 months after
WDRs Adoption1
6 months after
WDRs Adoption1
6 months after
WDRs Adoption1
SSMP Development
Plan and Schedule No
specific Section
9 months after
WDRs Adoption2
12 months after
WDRs Adoption2
15 months after
WDRs
Adoption2
18 months after
WDRs
Adoption2
Goals and Organization
Structure Section D 13
(i) & (ii)
12 months after
WDRs Adoption2
12 months after
WDRs Adoption2
18 months after
WDRs
Adoption2
18 months after
WDRs
Adoption2
Overflow Emergency
Response Program
Section D 13 (vi)
24 months after
WDRs Adoption
2 30 months after
WDRs Adoption
2 36 months after
WDRs
Adoption2
39 months after
WDRs
Adoption2
Legal Authority
Section D 13 (iii) 24 months after
WDRs Adoption
2 30 months after
WDRs Adoption
2 36 months after
WDRs
Adoption2
39 months after
WDRs
Adoption2
Operation and
Maintenance Program
Section D 13 (iv)
24 months after
WDRs Adoption2
30 months after
WDRs Adoption
2 36 months after
WDRs
Adoption2
39 months after
WDRs
Adoption2
Grease Control Program
Section D 13 (vii) 24 months after
WDRs Adoption2
30 months after
WDRs Adoption
2 36 months after
WDRs
Adoption2
39 months after
WDRs
Adoption2
Design and Performance
Section D 13 (v) 36 months after
WDRs Adoption
39 months after
WDRs Adoption
48 months after
WDRs Adoption
51 months after
WDRs Adoption
System Evaluation and
Capacity Assurance Plan
Section D 13 (viii)
36 months after
WDRs Adoption
39 months after
WDRs Adoption
48 months after
WDRs Adoption
51 months after
WDRs Adoption
Final SSMP,
incorporating all of the
SSMP requirements
Section D 13
36 months after
WDRs Adoption
39 months after
WDRs Adoption
48 months after
WDRs Adoption
51 months after
WDRs Adoption
State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
5/2/06
1. In the event that by July 1, 2006 the Executive Director is able to execute a memorandum of agreement (MOA) with the California Water Environment Association (CWEA) or discharger representatives outlining a strategy and time schedule for CWEA or another entity to provide statewide training on the adopted monitoring program, SSO database electronic reporting, and SSMP development, consistent with this Order, then the schedule of Reporting Program Section G shall be replaced with the following schedule:
Reporting Program
Section G
Regional Boards 4, 8,
and 9
8 months after WDRs Adoption
Regional Boards 1, 2,
and 3
12 months after WDRs Adoption
Regional Boards 5, 6,
and 7
16 months after WDRs Adoption
If this MOU is not executed by July 1, 2006, the reporting program time schedule will remain six (6) months for all regions and agency size categories.
2. In the event that the Executive Director executes the MOA identified in note 1 by July 1, 2006, then the deadline for this task shall be extended by six (6) months.
The time schedule identified in the MOA must be consistent with the extended time schedule provided by this note. If the MOA is not executed by July 1, 2006, the six (6) month time extension will not be granted.
E. WDRs and SSMP AVAILABILITY
1. A copy of the general WDRs and the certified SSMP shall be maintained at appropriate locations (such as the Enrollee’s offices, facilities, and/or Internet homepage) and shall be available to sanitary sewer system operating and maintenance personnel at all times.
F. ENTRY AND INSPECTION
1. The Enrollee shall allow the State or Regional Water Boards or their authorized representative, upon presentation of credentials and other documents as may be required by law, to:
a. Enter upon the Enrollee’s premises where a regulated facility or activity is located or conducted, or where records are kept under the conditions of this Order;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this Order;
State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
5/2/06
c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices, or operations regulated or required under this Order; and
d. Sample or monitor at reasonable times, for the purposes of assuring compliance with this Order or as otherwise authorized by the California Water Code, any substances or parameters at any location.
G. GENERAL MONITORING AND REPORTING REQUIREMENTS
1. The Enrollee shall furnish to the State or Regional Water Board, within a reasonable time, any information that the State or Regional Water Board may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this Order. The Enrollee shall also furnish to the Executive Director of the State Water Board or Executive Officer of the applicable Regional Water Board, upon request, copies of records required to be kept by this Order.
2. The Enrollee shall comply with the attached Monitoring and Reporting Program No. 2006-0003 and future revisions thereto, as specified by the Executive Director.
Monitoring results shall be reported at the intervals specified in Monitoring and Reporting Program No. 2006-0003. Unless superseded by a specific enforcement Order for a specific Enrollee, these reporting requirements are intended to replace other mandatory routine written reports associated with SSOs.
3. All Enrollees must obtain SSO Database accounts and receive a “Username” and “Password” by registering through the California Integrated Water Quality System (CIWQS). These accounts will allow controlled and secure entry into the SSO Database. Additionally, within 30days of receiving an account and prior to recording spills into the SSO Database, all Enrollees must complete the “Collection System Questionnaire”, which collects pertinent information regarding a Enrollee’s collection system. The “Collection System Questionnaire” must be updated at least every 12 months.
4. Pursuant to Health and Safety Code section 5411.5, any person who, without regard to intent or negligence, causes or permits any untreated wastewater or other waste to be discharged in or on any waters of the State, or discharged in or deposited where it is, or probably will be, discharged in or on any surface waters of the State, as soon as that person has knowledge of the discharge, shall immediately notify the local health officer of the discharge. Discharges of untreated or partially treated wastewater to storm drains and drainage channels, whether man-made or natural or concrete-lined, shall be reported as required above.
Any SSO greater than 1,000 gallons discharged in or on any waters of the State, or discharged in or deposited where it is, or probably will be, discharged in or on any surface waters of the State shall also be reported to the Office of Emergency Services pursuant to California Water Code section 13271.
State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
5/2/06
H. CHANGE IN OWNERSHIP
1 This Order is not transferable to any person or party, except after notice to the Executive Director. The Enrollee shall submit this notice in writing at least 30 days in advance of any proposed transfer. The notice must include a written agreement between the existing and new Enrollee containing a specific date for the transfer of this Order's responsibility and coverage between the existing Enrollee and the new Enrollee. This agreement shall include an acknowledgement that the existing Enrollee is liable for violations up to the transfer date and that the new Enrollee is liable from the transfer date forward.
I. INCOMPLETE REPORTS
1. If an Enrollee becomes aware that it failed to submit any relevant facts in any report required under this Order, the Enrollee shall promptly submit such facts or information by formally amending the report in the Online SSO Database.
J. REPORT DECLARATION
1. All applications, reports, or information shall be signed and certified as follows:
(i) All reports required by this Order and other information required by the State or Regional Water Board shall be signed and certified by a person designated, for a municipality, state, federal or other public agency, as either a principal executive officer or ranking elected official, or by a duly authorized representative of that person, as described in paragraph (ii) of this provision. (For purposes of electronic reporting, an electronic signature and accompanying certification, which is in compliance with the Online SSO database procedures, meet this certification requirement.) (ii) An individual is a duly authorized representative only if:
(a) The authorization is made in writing by a person described in paragraph (i) of this provision; and
(b) The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity.
K. CIVIL MONETARY REMEDIES FOR DISCHARGE VIOLATIONS
1. The California Water Code provides various enforcement options, including civil monetary remedies, for violations of this Order.
2. The California Water Code also provides that any person failing or refusing to furnish technical or monitoring program reports, as required under this Order, or State Water Resources Control Board Order No. 2006-0003-DWQ Statewide General WDR For Wastewater Collection Agencies
5/2/06
falsifying any information provided in the technical or monitoring reports is subject to civil monetary penalties.
L. SEVERABILITY
1. The provisions of this Order are severable, and 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.
2. This 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, nor protect the Enrollee from liability under federal, state or local laws, nor create a vested right for the Enrollee to continue the waste discharge.
CERTIFICATION
The undersigned Clerk to the State Water Board does hereby certify that the foregoing is a full, true, and correct copy of general WDRs duly and regularly adopted at a meeting of the State Water Resources Control Board held on May 2, 2006.
AYE: Tam M. Doduc Gerald D. Secundy
NO: Arthur G. Baggett
ABSENT: None
ABSTAIN: None
Song Her
Clerk to the Board
City of Manhattan Beach SSMP
75 Appendix B – State Water Resources Control Board Order No. 2013-0058-EXEC Amending Monitoring and Reporting Program for Statewide General WDR For Sanitary Sewer Systems
------- - - ------ ---- - ---
State Water Resources Control Board
July 26, 2013
All Enrollees Subject to the Statewide General Waste Discharge Requirements for Sanitary Sewer Systems
Dear Enrollees:
AMENDMENT OF STATEWIDE MONITORING AND REPORTING PROGRAM (MRP) REQUIREMENTS FOR SANITARY SEWER OVERFLOWS; MRP ORDER 2006-0003-DWQ Effective September 9, 2013, the MRP for the Statewide General Waste Discharge Requirements for Sanitary Sewer Systems (Order 2006-0003-DWQ) are amended. The amendments to the MRP set forth in Order 2013-0058-EXEC address compliance and enforceability in the existing MRP. The amendments additionally address stakeholder concern regarding cost of compliance issues. A copy of the amending Order and corresponding Fact Sheet describing my Executive Officer action, are enclosed.
Monitoring and reporting requirements in MRP Order 2008-0002-EXEC that have been effective since 2008 are superseded by the amended requirements set forth in Order 2013-0058-EXEC.
If you have any questions regarding these amendments, please contact Russell Norman, Water Resource Control Engineer at (916) 323-5598 or [email protected] .
Sincerely,
~H
Executive Director
Enclosures
cc: Regional Water Quality Control Board Executive Officers FELICIA MAF'::us, cHAti'l I THO MAS HewARD, execur·1e DIRECTOR 1001 I Street, Sacramento, CA 95814 I Mailing Address: P.O. Box 100, Sacramento, Ca 95812-0100 I www.wate rboards.ca .gov 6 RECYCLED PA?CR
STATE OF CALIFORNIA
WATER RESOURCES CONTROL BOARD
ORDER NO. WQ 2013 -0058-EXEC
AMENDING MONITORING AND REPORTING PROGRAM
FOR
STATEWIDE GENERAL WASTE DISCHARGE REQUIREMENTS FOR
SANITARY SEWER SYSTEMS
The State of California, Water Resources Control Board (hereafter State Water Board) finds:
1. The State Water Board is authorized to prescribe statewide general Waste Discharge Requirements (WDRs) for categories of discharges that involve the same or similar operations and the same or similar types of waste pursuant to Water Code section 13263(i) .
2. Water Code section 13193 et seq. requires the Regional Water Quality Control Boards (Regional Water Boards) and the State Water Board (collectively, the Water Boards) to gather Sanitary Sewer Overflow (SSO) information and make this information available to the public, including but not limited to, SSO cause, estimated volume, location, date, time, duration, whether or not the SSO reached or may have reached waters of the state, response and corrective action taken, and an enrollee's contact information for each SSO event. An enrollee is defined as the public entity having legal authority over the operation and maintenance of, or capital improvements to, a sanitary sewer system gr eater than one mile in length.
3. Water Code section 13271, et seq. requires notification to the California Office of Emergency Services (Cal OES), formerly the California Emergency Management Agency, for certain unauthorized discharges, including SSOs.
4. On May 2, 2006, the State Water Board adopted Order 2006 -0003-DWQ, "Statewide Waste Discharge Requirements for Sanitary Sewer Systems" 1 (hereafter SSS WDRs) to comply with Water Code section 13193 and to establish the framework for the statewide SS O Reduction Program.
5. Subsection G.2 of the SSS WDRs and the Monitoring and Reporting Program (MRP) provide that the Executive Director may modify the terms of the MRP at any time.
6. On February 20, 2008, the State Water Board Executive Director a dopted a revised MRP for the SSS WDRs to rectify early notification deficiencies and ensure that first responders are notified in a timely manner of SSOs discharged into waters of the state.
7. When notified of an SSO that reaches a drainage channel or surface water of the state, Cal OES, pursuant to Water Code section 13271(a)(3), forwards the SSO notification information
2 to local government agencies and first responders including local public health officials and the applicable Regional Water Board. Receipt of notifications for a single SSO event from both the SSO reporter and Cal OES is duplicative. To address this, t he SSO notification requirements added by the February 20, 2008 MRP revision are being removed in this MRP revision.
1 Available for download at:
http://www.waterboards.ca.gov/board decisions/adopted orders/water guality/2006/wgo/wgo2006 0003.pdf
2 Cal OES Hazardous Materials Spill Reports available Online at:
http://w3.calema.ca.gov/operational/malhaz.nsf/$defaultview and http://w3.calema.ca.gov/operational/malhaz.nsf
Monitoring and Reporting Program No. WQ 2013 -0058-EXEC Statewide Waste Discharge Requirements for Sanitary Sewer Systems Page 2 of 2
8. In the February 28, 2008 Memorandum of Agreement between the State Water Board and the California Water and Environment Association (CWEA), the State Water Board committed to re designing the CIWQS 3 Online SSO Database to allow "event" based SSO reporting versus the original "location" based reporting. Revisions to this MRP and accompanying changes to the CIWQS Online SSO Database will implement this change by allowing for multiple SSO appearance points to be associated with each SSO event caused by a single asset failure.
9. Based on stakeholder input and Water Board staff experience implementing the SSO Reduction Program, SSO categories have been revised in this MRP. In the prior version of the MRP, SSOs have been categorized as Category 1 or Category 2. This MRP implements changes to SSO categories by adding a Category 3 SSO type. This change will improve data management to fu rther assist Water Board staff with evaluation of high threat and low threat SSOs by placing them in unique categories (i.e., Category 1 and Category 3, respectively). This change will also assist enrollees in identifying SSOs that require Cal OES notifica tion.
10. Based on over six years of implementation of the SSS WDRs, the State Water Board concludes that the February 20, 2008 MRP must be updated to better advance the SSO Reduction Program
4 objectives, assess compliance, and enforce the requirements o f the SSS WDRs.
IT IS HEREBY ORDERED THAT:
Pursuant to the authority delegated by Water Code section 13267(f), Resolution 2002 -0104, and Order 2006 -0003-DWQ, the MRP for the SSS WDRs (Order 2006 -0003-DWQ) is hereby amended as shown in Attachment A and shall be effective on September 9, 2013.
Date
3 California Integrated Water Quality System (CIWQS) publicly available at http://www .waterboards .ca.gov/ciwgs/publicreports .shtml 4 Statewide Sanitary Sewer Overflow Reduction Program information is available at:
http://www.waterboards.ca.gov/water issues/proqrams/sso /
ATTACHMENT A
STATE WATER RESOURCES CONTROL BOARD
ORDER NO. WQ 2013-0058-EXEC
AMENDING MONITORING AND REPORTING PROGRAM
FOR
STATEWIDE GENERAL WASTE DISCHARGE REQUIREMENTS FOR
SANITARY SEWER SYSTEMS
This Monitoring and Reporting Program (MRP) establishes monitoring, record keeping, reporting and public notification requirements for Order 2006-0003-DWQ, “Statewide General Waste Discharge Requirements for Sanitary Sewer Systems” (SSS WDRs). This MRP shall be effective from September 9, 2013 until it is rescinded. The Executive Director may make revisions to this MRP at any time. These revisions may include a reduction or increase in the monitoring and reporting requirements. All site specific records and data developed pursuant to the SSS WDRs and this MRP shall be complete, accurate, and justified by evidence maintained by the enrollee. Failure to comply with this MRP may subject an enrollee to civil liabilities of up to $5,000 a day per violation pursuant to Water Code section 13350; up to $1,000 a day per violation pursuant to Water Code section 13268; or referral to the Attorney General for judicial civil enforcement. The State Water Resources Control Board (State Water Board) reserves the right to take any further enforcement action authorized by law.
A. SUMMARY OF MRP REQUIREMENTS
Table 1 – Spill Categories and Definitions
CATEGORIES DEFINITIONS [see Section A on page 5 of Order 2006-0003-DWQ, for Sewer Overflow (SSO) definition]
CATEGORY 1
Discharges of untreated or partially treated wastewater of any volume resulting from an enrollee’s sanitary sewer system failure or flow condition that:
· Reach surface water and/or reach a drainage channel tributary to a surface water; or
· Reach a Municipal Separate Storm Sewer System (MS4) and are not fully captured and returned to the sanitary sewer system or not otherwise captured and disposed of properly. Any volume of wastewater not recovered from the MS4 is considered to have reached surface water unless the storm drain system discharges to a dedicated storm water or groundwater infiltration basin (e.g., infiltration pit, percolation pond).
CATEGORY 2
Discharges of untreated or partially treated wastewater of 1,000 gallons or greater resulting from an enrollee’s sanitary sewer system failure or flow condition that do not reach surface water, a drainage channel, or a MS4 unless the entire SSO discharged to the storm drain system is fully recovered and disposed of properly.
CATEGORY 3 All other discharges of untreated or partially treated wastewater resulting from an enrollee’s sanitary sewer system failure or flow condition.
CATEGORIES DEFINITIONS [see Section A on page 5 of Order 2006-0003-DWQ, for Sewer Overflow (SSO) definition]
PRIVATE
LATERAL
SEWAGE
DISCHARGE
(PLSD)
Discharges of untreated or partially treated wastewater resulting from blockages or other problems within a privately owned sewer lateral connected to the enrollee’s sanitary sewer system or from other private sewer assets. PLSDs that the enrollee becomes aware of may be voluntarily reported to the California Integrated Water Quality System (CIWQS) Online SSO Database.
Table 2 – Notification, Reporting, Monitoring, and Record Keeping Requirements
ELEMENT REQUIREMENT METHOD
NOTIFICATION
(see section B
of MRP)
· Within two hours of becoming aware of any
Category 1 SSO greater than or equal to 1,000
gallons discharged to surface water or
spilled in a location where it probably will be
discharged to surface water, notify the
California Office of Emergency Services (Cal
OES) and obtain a notification control number.
Call Cal OES at:
(800) 852-7550
REPORTING
(see section C
of MRP)
· Category 1 SSO: Submit draft report within three
business days of becoming aware of the SSO
and certify within 15 calendar days of SSO end
date.
· Category 2 SSO: Submit draft report within 3
business days of becoming aware of the SSO
and certify within 15 calendar days of the SSO
end date.
· Category 3 SSO: Submit certified report within
30 calendar days of the end of month in which
SSO the occurred.
· SSO Technical Report: Submit within 45
calendar days after the end date of any
Category 1 SSO in which 50,000 gallons or
greater are spilled to surface waters.
· “No Spill” Certification: Certify that no SSOs
occurred within 30 calendar days of the end of
the month or, if reporting quarterly, the quarter in
which no SSOs occurred.
· Collection System Questionnaire: Update and
certify every 12 months.
Enter data into the
CIWQS Online SSO
Database
(http://ciwqs.waterboar
ds.ca.gov/), certified by
enrollee’s Legally
Responsible Official(s).
WATER
QUALITY
MONITORING
(see section D
of MRP)
· Conduct water quality sampling within 48 hours
after initial SSO notification for Category 1 SSOs
in which 50,000 gallons or greater are spilled to
surface waters.
Water quality results
are required to be
uploaded into CIWQS
for Category 1 SSOs in
which 50,000 gallons
or greater are spilled to
surface waters.
RECORD
KEEPING
(see section E
of MRP)
· SSO event records.
· Records documenting Sanitary Sewer
Management Plan (SSMP) implementation and
changes/updates to the SSMP.
· Records to document Water Quality Monitoring
for SSOs of 50,000 gallons or greater spilled to
surface waters.
· Collection system telemetry records if relied
upon to document and/or estimate SSO Volume.
Self-maintained
records shall be
available during
inspections or upon
request.
Monitoring and Reporting Program Order No. WQ 2013 -0058-EXEC Statewide Waste Discharge Requirements for Sanitary Sewer Systems Page 4 of 12 B. NOTIFICATION REQUIREMENTS
Although Regional Water Quality Control Boards (Regional Water Boards) and the State Water Board (collectively, the Water Boards) staff do not have duties as first responders, this MRP is an appropriate mechanism to ensure that the agencies that have first responder duties are notified in a timely manner in order to protect public health and beneficial uses.
1. For any Category 1 SSO greater than or equal to 1,000 gallons that results in a discharge to a surface water or spilled in a location where it probably will be discharged to surface water, either directly or by way of a drainage channel or MS4, the enrollee shall, as soon as possible, but not later than two (2) hours after (A) the enrollee has knowledge of the discharge, (B) notification is possible, and (C) notification can be provided without substantially impeding cleanup or other emergency measures, notify the Cal OES and obtain a notification control number.
2. To satisfy notification requirements for each applicable SSO, the enrollee shall provide the information requested by Cal OES before receiving a control number. Spill information requested by Cal OES may include:
i. Name of person notifying Cal OES and direct return phone number. ii. Estimated SSO volume discharged (gallons).
iii. If ongoing, estimated SSO discharge rate (gallons per minute). iv. SSO Incident Description:
a. Brief narrative.
b. On-scene point of contact for additional information (name and cell phone number). c. Date and time enrollee became aware of the SSO.
d. Name of sanitary sewer system agency causing the SSO. e. SSO cause (if known).
v. Indication of whether the SSO has been contained. vi. Indication of whether surface water is impacted.
vii. Name of surface water impacted by the SSO, if applicable. viii. Indication of whether a drinking water supply is or may be impacted by the SSO. ix. Any other known SSO impacts.
x. SSO incident location (address, city, state, and zip code).
3. Following the initial notification to Cal OES and until such time that an enrollee certifies the SSO report in the CIWQS Online SSO Database, the enrollee shall provide updates to Cal OES regarding substantial changes to the estimated volume of untreated or partially treated sewage discharged and any substantial change(s) to known impact(s).
Monitoring and Reporting Program Order No. WQ 2013 -0058-EXEC Statewide Waste Discharge Requirements for Sanitary Sewer Systems Page 5 of 12
4. PLSDs: The enrollee is strongly encouraged to notify Cal OES of discharges greater than or equal to 1,000 gallons of untreated or partially treated wastewater that result or may result in a discharge to surface water resulting from failures or flow conditions within a privately owned sewer lateral or from other private sewer asset(s) if the enrollee becomes aware of the PLSD.
C. REPORTING REQUIREMENTS
1. CIWQS Online SSO Database Account: All enrollees shall obtain a CIWQS Online SSO Database account and receive a “Username” and “Password” by registering through CIWQS.
These accounts allow controlled and secure entry into the CIWQS Online SSO Database.
2. SSO Mandatory Reporting Information: For reporting purposes, if one SSO event results in multiple appearance points in a sewer system asset, the enrollee shall complete one SSO report in the CIWQS Online SSO Database which includes the GPS coordinates for the location of the SSO appearance point closest to the failure point, blockage or location of the flow condition that caused the SSO, and provide descriptions of the locations of all other discharge points associated with the SSO event.
3. SSO Categories
i. Category 1 – Discharges of untreated or partially treated wastewater of any volume resulting from an enrollee’s sanitary sewer system failure or flow condition that:
a. Reach surface water and/or reach a drainage channel tributary to a surface water; or b. Reach a MS4 and are not fully captured and returned to the sanitary sewer system or not otherwise captured and disposed of properly. Any volume of wastewater not recovered from the MS4 is considered to have reached surface water unless the storm drain system discharges to a dedicated storm water or groundwater infiltration basin (e.g., infiltration pit, percolation pond). ii. Category 2 – Discharges of untreated or partially treated wastewater greater than or equal to 1,000 gallons resulting from an enrollee’s sanitary sewer system failure or flow condition that does not reach a surface water, a drainage channel, or the MS4 unless the entire SSO volume discharged to the storm drain system is fully recovered and disposed of properly. iii. Category 3 – All other discharges of untreated or partially treated wastewater resulting from an enrollee’s sanitary sewer system failure or flow condition.
4. Sanitary Sewer Overflow Reporting to CIWQS - Timeframes i. Category 1 and Category 2 SSOs – All SSOs that meet the above criteria for Category 1 or Category 2 SSOs shall be reported to the CIWQS Online SSO Database:
a. Draft reports for Category 1 and Category 2 SSOs shall be submitted to the CIWQS Online SSO Database within three (3) business days of the enrollee becoming aware of the SSO. Minimum information that shall be reported in a draft Category 1 SSO report shall include all information identified in section 8.i.a. below. Minimum information that shall be reported in a Category 2 SSO draft report shall include all information identified in section 8.i.c below.
Monitoring and Reporting Program Order No. WQ 2013 -0058-EXEC Statewide Waste Discharge Requirements for Sanitary Sewer Systems Page 6 of 12 b. A final Category 1 or Category 2 SSO report shall be certified through the CIWQS Online SSO Database within 15 calendar days of the end date of the SSO. Minimum information that shall be certified in the final Category 1 SSO report shall include all information identified in section 8.i.b below. Minimum information that shall be certified in a final Category 2 SSO report shall include all information identified in section 8.i.d below.
ii. Category 3 SSOs – All SSOs that meet the above criteria for Category 3 SSOs shall be reported to the CIWQS Online SSO Database and certified within 30 calendar days after the end of the calendar month in which the SSO occurs (e.g., all Category 3 SSOs occurring in the month of February shall be entered into the database and certified by March 30). Minimum information that shall be certified in a final Category 3 SSO report shall include all information identified in section 8.i.e below. iii. “No Spill” Certification – If there are no SSOs during the calendar month, the enrollee shall either 1) certify, within 30 calendar days after the end of each calendar month, a “No Spill” certification statement in the CIWQS Online SSO Database certifying that there were no SSOs for the designated month, or 2) certify, quarterly within 30 calendar days after the end of each quarter, “No Spill” certification statements in the CIWQS Online SSO Database certifying that there were no SSOs for each month in the quarter being reported on. For quarterly reporting, the quarters are Q1 - January/ February/ March, Q2 - April/May/June, Q3 - July/August/September, and Q4 - October/November/December.
If there are no SSOs during a calendar month but the enrollee reported a PLSD, the enrollee shall still certify a “No Spill” certification statement for that month. iv. Amended SSO Reports – The enrollee may update or add additional information to a certified SSO report within 120 calendar days after the SSO end date by amending the report or by adding an attachment to the SSO report in the CIWQS Online SSO Database.
SSO reports certified in the CIWQS Online SSO Database prior to the adoption date of this MRP may only be amended up to 120 days after the effective date of this MRP. After 120 days, the enrollee may contact the SSO Program Manager to request to amend an SSO report if the enrollee also submits justification for why the additional information was not available prior to the end of the 120 days.
5. SSO Technical Report
The enrollee shall submit an SSO Technical Report in the CIWQS Online SSO Database within 45 calendar days of the SSO end date for any SSO in which 50,000 gallons or greater are spilled to surface waters. This report, which does not preclude the Water Boards from requiring more detailed analyses if requested, shall include at a minimum, the following:
i. Causes and Circumstances of the SSO:
a. Complete and detailed explanation of how and when the SSO was discovered. b. Diagram showing the SSO failure point, appearance point(s), and final destination(s). c. Detailed description of the methodology employed and available data used to calculate the volume of the SSO and, if applicable, the SSO volume recovered. d. Detailed description of the cause(s) of the SSO.
Monitoring and Reporting Program Order No. WQ 2013 -0058-EXEC Statewide Waste Discharge Requirements for Sanitary Sewer Systems Page 7 of 12 e. Copies of original field crew records used to document the SSO. f. Historical maintenance records for the failure location. ii. Enrollee’s Response to SSO:
a. Chronological narrative description of all actions taken by enrollee to terminate the spill.
b. Explanation of how the SSMP Overflow Emergency Response plan was implemented to respond to and mitigate the SSO.
c. Final corrective action(s) completed and/or planned to be completed, including a schedule for actions not yet completed.
iii. Water Quality Monitoring:
a. Description of all water quality sampling activities conducted including analytical results and evaluation of the results.
b. Detailed location map illustrating all water quality sampling points.
6. PLSDs
Discharges of untreated or partially treated wastewater resulting from blockages or other problems within a privately owned sewer lateral connected to the enrollee’s sanitary sewer system or from other private sanitary sewer system assets may be voluntarily reported to the CIWQS Online SSO Database.
i. The enrollee is also encouraged to provide notification to Cal OES per section B above when a PLSD greater than or equal to 1,000 gallons has or may result in a discharge to surface water. For any PLSD greater than or equal to 1,000 gallons regardless of the spill destination, the enrollee is also encouraged to file a spill report as required by Health and Safety Code section 5410 et. seq. and Water Code section 13271, or notify the responsible party that notification and reporting should be completed as specified above and required by State law.
ii. If a PLSD is recorded in the CIWQS Online SSO Database, the enrollee must identify the sewage discharge as occurring and caused by a private sanitary sewer system asset and should identify a responsible party (other than the enrollee), if known. Certification of PLSD reports by enrollees is not required.
7. CIWQS Online SSO Database Unavailability
In the event that the CIWQS Online SSO Database is not available, the enrollee must fax or e- mail all required information to the appropriate Regional Water Board office in accordance with the time schedules identified herein. In such event, the enrollee must also enter all required information into the CIWQS Online SSO Database when the database becomes available.
Monitoring and Reporting Program Order No. WQ 2013 -0058-EXEC Statewide Waste Discharge Requirements for Sanitary Sewer Systems Page 8 of 12
8. Mandatory Information to be Included in CIWQS Online SSO Reporting All enrollees shall obtain a CIWQS Online SSO Database account and receive a “Username” and “Password” by registering through CIWQS which can be reached at [email protected] or by calling (866) 792-4977, M-F, 8 A.M. to 5 P.M.
These accounts will allow controlled and secure entry into the CIWQS Online SSO Database. Additionally, within thirty (30) days of initial enrollment and prior to recording SSOs into the CIWQS Online SSO Database, all enrollees must complete a Collection System Questionnaire (Questionnaire). The Questionnaire shall be updated at least once every 12 months.
i. SSO Reports
At a minimum, the following mandatory information shall be reported prior to finalizing and certifying an SSO report for each category of SSO:
a. Draft Category 1 SSOs: At a minimum, the following mandatory information shall be reported for a draft Category 1 SSO report:
1. SSO Contact Information: Name and telephone number of enrollee contact person who can answer specific questions about the SSO being reported.
2. SSO Location Name.
3. Location of the overflow event (SSO) by entering GPS coordinates. If a single overflow 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 SSO appearance point explanation field.
4. Whether or not the SSO reached surface water, a drainage channel, or entered and was discharged from a drainage structure.
5. Whether or not the SSO reached a municipal separate storm drain system.
6. Whether or not the total SSO volume that reached a municipal separate storm drain system was fully recovered.
7. Estimate of the SSO volume, inclusive of all discharge point(s).
8. Estimate of the SSO volume that reached surface water, a drainage channel, or was not recovered from a storm drain.
9. Estimate of the SSO volume recovered (if applicable).
10. Number of SSO appearance point(s).
11. Description and location of SSO appearance point(s). If a single sanitary sewer system failure results in multiple SSO appearance points, each appearance point must be described.
12. SSO start date and time.
13. Date and time the enrollee was notified of, or self-discovered, the SSO.
14. Estimated operator arrival time.
15. For spills greater than or equal to 1,000 gallons, the date and time Cal OES was called.
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16. For spills greater than or equal to 1,000 gallons, the Cal OES control number. b. Certified Category 1 SSOs: At a minimum, the following mandatory information shall be reported for a certified Category 1 SSO report, in addition to all fields in section 8.i.a:
1. Description of SSO destination(s).
2. SSO end date and time.
3. SSO causes (mainline blockage, roots, etc.).
4. SSO failure point (main, lateral, etc.).
5. Whether or not the spill was associated with a storm event.
6. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the overflow; and a schedule of major milestones for those steps.
7. Description of spill response activities.
8. Spill response completion date.
9. Whether or not there is an ongoing investigation, the reasons for the investigation and the expected date of completion.
10. Whether or not a beach closure occurred or may have occurred as a result of the SSO.
11. Whether or not health warnings were posted as a result of the SSO.
12. Name of beach(es) closed and/or impacted. If no beach was impacted, NA shall be selected.
13. Name of surface water(s) impacted.
14. If water quality samples were collected, identify parameters the water quality samples were analyzed for. If no samples were taken, NA shall be selected.
15. If water quality samples were taken, identify which regulatory agencies received sample results (if applicable). If no samples were taken, NA shall be selected.
16. Description of methodology(ies) and type of data relied upon for estimations of the SSO volume discharged and recovered.
17. SSO Certification: Upon SSO Certification, the CIWQS Online SSO Database will issue a final SSO identification (ID) number. c. Draft Category 2 SSOs: At a minimum, the following mandatory information shall be reported for a draft Category 2 SSO report:
1. Items 1-14 in section 8.i.a above for Draft Category 1 SSO.
Monitoring and Reporting Program Order No. WQ 2013 -0058-EXEC Statewide Waste Discharge Requirements for Sanitary Sewer Systems Page 10 of 12 d. Certified Category 2 SSOs: At a minimum, the following mandatory information shall be reported for a certified Category 2 SSO report:
1. Items 1-14 in section 8.i.a above for Draft Category 1 SSO and Items 1-9, and 17 in section 8.i.b above for Certified Category 1 SSO. e. Certified Category 3 SSOs: At a minimum, the following mandatory information shall be reported for a certified Category 3 SSO report:
1. Items 1-14 in section 8.i.a above for Draft Category 1 SSO and Items 1-5, and 17 in section 8.i.b above for Certified Category 1 SSO. ii. Reporting SSOs to Other Regulatory Agencies
These reporting requirements do not preclude an enrollee from reporting SSOs to other regulatory agencies pursuant to state law. In addition, these reporting requirements do not replace other Regional Water Board notification and reporting requirements for SSOs. iii. Collection System Questionnaire
The required Questionnaire (see subsection G of the SSS WDRs) provides the Water Boards with site-specific information related to the enrollee’s sanitary sewer system. The enrollee shall complete and certify the Questionnaire at least every 12 months to facilitate program implementation, compliance assessment, and enforcement response. iv. SSMP Availability
The enrollee shall provide the publicly available internet web site address to the CIWQS Online SSO Database where a downloadable copy of the enrollee’s approved SSMP, critical supporting documents referenced in the SSMP, and proof of local governing board approval of the SSMP is posted. If all of the SSMP documentation listed in this subsection is not publicly available on the Internet, the enrollee shall comply with the following procedure:
a. Submit an electronic copy of the enrollee’s approved SSMP, critical supporting documents referenced in the SSMP, and proof of local governing board approval of the SSMP to the State Water Board, within 30 days of that approval and within 30 days of any subsequent SSMP re-certifications, to the following mailing address:
State Water Resources Control Board
Division of Water Quality
Attn: SSO Program Manager
1001 I Street, 15th Floor, Sacramento, CA 95814
D. WATER QUALITY MONITORING REQUIREMENTS:
To comply with subsection D.7(v) of the SSS WDRs, the enrollee shall develop and implement an SSO Water Quality Monitoring Program to assess impacts from SSOs to surface waters in which 50,000 gallons or greater are spilled to surface waters. The SSO Water Quality Monitoring Program, shall, at a minimum:
Monitoring and Reporting Program Order No. WQ 2013 -0058-EXEC Statewide Waste Discharge Requirements for Sanitary Sewer Systems Page 11 of 12
1. Contain protocols for water quality monitoring.
2. Account for spill travel time in the surface water and scenarios where monitoring may not be possible (e.g. safety, access restrictions, etc.).
3. Require water quality analyses for ammonia and bacterial indicators to be performed by an accredited or certified laboratory.
4. Require monitoring instruments and devices used to implement the SSO Water Quality Monitoring Program to be properly maintained and calibrated, including any records to document maintenance and calibration, as necessary, to ensure their continued accuracy.
5. Within 48 hours of the enrollee becoming aware of the SSO, require water quality sampling for, at a minimum, the following constituents:
i. Ammonia
ii. Appropriate Bacterial indicator(s) per the applicable Basin Plan water quality objective or Regional Board direction which may include total and fecal coliform, enterococcus, and e- coli.
E. RECORD KEEPING REQUIREMENTS:
The following records shall be maintained by the enrollee for a minimum of five (5) years and shall be made available for review by the Water Boards during an onsite inspection or through an information request:
1. General Records: The enrollee shall maintain records to document compliance with all provisions of the SSS WDRs and this MRP for each sanitary sewer system owned including any required records generated by an enrollee’s sanitary sewer system contractor(s).
2. SSO Records: The enrollee shall maintain records for each SSO event, including but not limited to:
i. Complaint records documenting how the enrollee responded to all notifications of possible or actual SSOs, both during and after business hours, including complaints that do not result in SSOs. Each complaint record shall, at a minimum, include the following information:
a. Date, time, and method of notification.
b. Date and time the complainant or informant first noticed the SSO. c. Narrative description of the complaint, including any information the caller can provide regarding whether or not the complainant or informant reporting the potential SSO knows if the SSO has reached surface waters, drainage channels or storm drains.
d. Follow-up return contact information for complainant or informant for each complaint received, if not reported anonymously.
e. Final resolution of the complaint.
Monitoring and Reporting Program Order No. WQ 2013 -0058-EXEC Statewide Waste Discharge Requirements for Sanitary Sewer Systems Date
ii. Records documenting steps and/or remedial actions undertaken by enrollee, using all available information, to comply with section D.7 of the SSS WDRs. iii. Records documenting how all estimate(s) of volume(s) discharged and, if applicable, volume(s) recovered were calculated.
3. Records documenting all changes made to the SSMP since its last certification indicating when a subsection(s) of the SSMP was changed and/or updated and who authorized the change or update. These records shall be attached to the SSMP.
4. Electronic monitoring records relied upon for documenting SSO events and/or estimating the SSO volume discharged, including, but not limited to records from:
i. Supervisory Control and Data Acquisition (SCADA) systems ii. Alarm system(s)
iii. Flow monitoring device(s) or other instrument(s) used to estimate wastewater levels, flow rates and/or volumes.
F. CERTIFICATION
1. All information required to be reported into the CIWQS Online SSO Database shall be certified by a person designated as described in subsection J of the SSS WDRs. This designated person is also known as a Legally Responsible Official (LRO). An enrollee may have more than one LRO.
2. Any designated person (i.e. an LRO) shall be registered with the State Water Board to certify reports in accordance with the CIWQS protocols for reporting.
3. Data Submitter (DS): Any enrollee employee or contractor may enter draft data into the CIWQS Online SSO Database on behalf of the enrollee if authorized by the LRO and registered with the State Water Board. However, only LROs may certify reports in CIWQS.
4. The enrollee shall maintain continuous coverage by an LRO. Any change of a registered LRO or DS (e.g., retired staff), including deactivation or a change to the LRO’s or DS’s contact information, shall be submitted by the enrollee to the State Water Board within 30 days of the change by calling (866) 792-4977 or e-mailing [email protected].
5. A registered designated person (i.e., an LRO) shall certify all required reports under penalty of perjury laws of the state as stated in the CIWQS Online SSO Database at the time of certification.
CERTIFICAT ION
The undersigned Clerk to the Board does hereby certify that the foregoing is a full, true, and correct copy of an order amended by the Executive Director of the State Water Resources Control Board.
City of Manhattan Beach SSMP
91 Appendix C - Fact Sheet Amending Monitoring and Reporting Program for Statewide General WDR For Sanitary Sewer Systems
AMENDED MONITORING AND REPORTING PROGRAM FOR THE
STATEWIDE GENERAL WASTE DISCHARGE REQUIREMENTS FOR
SANITARY SEWER SYSTEMS
BACKGROUND
Water Code section 13193 (2001, A.B. 285) requires the State Water Resources Control Board (State Water Board) and Regional Water Quality Control Boards (collectively Water Boards) to gather comprehensive and specific Sanitary Sewer Overflow (SSO) information. Water Code section 13193 also requires the Water Boards to make available to the public information including but not limited to the cause, estimated volume, location, date, time, and duration of the SSO; whether the SSO reached or may have reached surface waters; the response and corrective action taken by the collection system owner or operator (hereafter, Enrollee) for each SSO event; and the contact information for each Enrollee.
On May 2, 2006 the State Water Board adopted Water Quality Order 2006-0003-DWQ, “Statewide Waste Discharge Requirements for Sanitary Sewer Systems” (hereafter, SSS WDRs) to address Water Code section 13193 requirements and develop the framework for the statewide Sanitary Sewer Overflow Reduction Program. The SSS WDRs’ Monitoring and Reporting Program (MRP) includes specific SSO notification and reporting and record keeping requirements to meet SSO reporting requirements in the Water Code and facilitate compliance monitoring and enforcement for violations.
The State Water Board Executive Officer issued a revised MRP for the SSS WDRs on February 20, 2008 to rectify notification deficiencies that occurred early in program implementation and to ensure that first responders (e.g., Water Boards, California Office of Emergency Services, and County Health Departments) are notified in a timely manner for SSOs discharged to surface waters. Based on over six years of implementation of the SSS WDRs, the State Water Board concluded that the February 20, 2008 revised MRP is no longer adequate to advance the Sanitary Sewer Overflow Reduction Program objectives, assess compliance, and enforce the requirements of the SSS WDRs.
Following its January 24, 2012 workshop with stakeholders for the review and update of the SSS WDRs, the State Water Board directed staff to review and evaluate the existing monitoring and reporting requirements and prepare an amended MRP for the Executive Director’s issuance. Staff worked with the key stakeholders (e.g., California Association of Sanitation Agencies) to revise the monitoring and reporting requirements. State Water Board staff distributed the draft versions of the MRP to all stakeholders registered on the Lyris e-mail list for the Sanitary Sewer Overflow Reduction Program, solicited comments on the draft versions of the MRP in January and March 2013, and considered all comments received in developing the final revised MRP.
Fact Sheet for Order 2013-0058-EXEC Page 2 of 3
Monitoring and Reporting Program for Order 2006-0003-DWQ
INSPECTION AND AUDIT FINDINGS
Since January 2007, numerous violations of the SSS WDRs have been documented by the Water Boards through data review, compliance monitoring, and onsite inspections. The most common violations related to the MRP that the Water Boards have documented are:
Failure to properly estimate and report SSO volumes discharged and recovered [violation of section G of the SSS WDRs]
Failure of the Enrollee to comply with all minimum MRP record keeping requirements [violation of section G of the SSS WDRs]
Failure of the Enrollee to implement feasible alternatives and actions necessary to identify and correct problems causing SSOs [violation of subsection D.6 of the SSS WDRs]
Unauthorized use of legally responsible official’s SSO Online Database login password and electronic signature; [violation of section J of the SSS WDRs]
Failure of the Enrollee to develop and/or implement an Overflow Emergency Response Plan to ensure all reasonable steps are taken to contain and prevent the discharge of untreated and partially treated wastewater to waters of the United States and to minimize or correct any adverse impact on the environment resulting from the SSOs, including accelerated or additional monitoring necessary to determine the nature and impact of the SSO [violation of subsection D.13(vi) of the SSS WDRs]
Failure of the Enrollee to implement required training for sewer system operators and contractors [violation of subsections D.13(iv) and D.13(vi) of the SSS WDRs]
Amendments made to the MRP in Order 2013-0058-EXEC address these and other issues that have become apparent in the implementation of the SSS WDRs in over six years.
MONITORING AND REPORTING PROGRAM AMENDMENTS
State Water Board staff and other members of the Data Review Committee reviewed the current SSS WDRs reporting requirements as part of the SSS WDRs review and update process. The Data Review Committee is open to all stakeholders. Consequently, enrollees, non-governmental organizations, and other agencies have participated. As a result of this process, new reporting requirements have been developed that address the compliance and enforcement issues noted above and improve the quality and usefulness of SSO data collected.
While the proposed changes streamline the reporting process overall, some fields have been added to the reports. These additions address critical information gaps in the current reporting that have been identified both internally and by stakeholders.
For example, many enrollees have noted that we need to be able to separate sewer lateral spills from spills occurring in other asset types like main lines or pump stations. The “where did the failure occur” question on the electronic spill report form was not a required field in the original or revised 2008 MRP. Many SSO reports do not have this information, thus, we cannot differentiate lateral spills from main line, pump station, or other types of spills. This is one example of the additions in the required data entry that have been addressed in the 2013 MRP revisions.
Fact Sheet for Order 2013-0058-EXEC Page 3 of 3
Monitoring and Reporting Program for Order 2006-0003-DWQ
The following is a summary of major changes made to the existing MRP (Order 2008-0002- EXEC) and incorporated in the final revised MRP (Order 2013-0058-EXEC):
1. Change in Notification Requirement for spills that reach surface water:
Three notification calls were required (Calif ornia Office of Emergency Services, Regional Water Quality Control Boards, and local Health Departments). Required notification has been changed to call California Office of Emergency Services (Cal OES) only since Cal OES notifies the Regional Water Quality Control Boards and local Health Departments when a spill notification is received.
Elimination of requirement to submit a ce rtification to Regional Water Quality Control Boards within 24 hours of making notification calls.
Alignment of notification requirement with California Code of Regulations section 2250, Reportable Quantity of Sewage, by requiring notification calls for only spills of 1,000 gallons or more. Notification of Cal OES was required for all spills to surface water. Addition of requirement to update Cal OES when there are substantial changes to previously reported spill volume estimates or impacts.
2. Defined new spill categories and refined spill report fields:
Replacement of spill Categories 1 and 2 with Categories 1, 2, and 3. Spills are now classified as follows:
Category 1 – Spills of any volume that reach surface water Category 2 – Spills greater than or equal to 1,000 gallons that do not reach surface water
Category 3 (formerly Category 2) – Spills less than 1,000 gallons that do not reach surface water
All spills to surface water will be in a distinct category with this change. Spill reporting fields were refined and streamlined with stakeholder input.
3. Addition of requirement to submit a technical report within 45 days of the end date for spills to surface water over 50,000 gallons.
4. Addition of requirement for all Permit enrollees to develop a Water Quality Monitoring plan to be implemented within 48 hours after initial notification for spills where 50,000 gallons or more reach surface water.
5. Addition of requirement for Permit enrollees to submit an electronic copy of their Sewer System Management Plan (SSMP) or provide the web address where their SSMP is posted.
6. Addition of enhanced record keeping requirements.
7. Elimination of requirement to certify Private Lateral Sewer Discharge reports.
8. Addition of a 120-day time limit for amending and re-certifying spill reports.
City of Manhattan Beach SSMP
95 Appendix D – SSMP Sample Change Log
City of Manhattan Beach Sewer System Management Plan Change Log
Date SSMP
Element
/ Section
Description of Change/Revision Made Change
Authorized By:
City of Manhattan Beach SSMP
96 Appendix E – Self-Audit
Sewer System Management Plan (SSMP)
Internal Audit
Introduction
The City of Manhattan Beach ( The City) Sewer System is subject to permitting requirements under the Statewide General Waste Discharge Requirement for Sanitary Sewer Systems (WDR SSS). The State Water Resources Control Board (SWRCB) issued Order No. WQ to mitigate the potential impact of sanitary sewer overflows (SSOs) on public health and the environment. The WRO SSS applies to all public collection system agencies in California that own and operate collection systems. The City is subject to permitting requirements under the WRO SSS, and is required to prepare a Sewer System Management Plan (SSMP) every five (5) years. Its principal elements include how the municipality operates and maintains the collection system, and procedures for reporting all Sanitary Sewer Overflows (SSOs) to the California Integrated Water Quality System (CIWQS) online database, with the ultimate goal of minimizing SSOs.
Background
The City sanitary sewer system comprises 431,083 ft. of gravity sewer mains ranging in size from 6in to 21in and 5,114 ft. of 6in force ma ins diameter, 8 pump stations, and 2,086 sewer maintenance holes. The table below summarizes The City Collection System.
Collections System Overview
Gravity Sewer Mains 431,083 ft.
Force Mains 5,114 ft.
Sewer Pump Lift Stations 8
SSMP Internal Audit Overview
Section 10 of the WRD SSS requires enrollees to conduct internal audits every two (2) years. The audit focuses on evaluating the plan's effectiveness, compliance with its program elements, identifying steps to correct any deficiencies, and implementing programs as stated in the SSMP. The City has not performed any audits to date . This report summarizes the results of The City internal audit for 2017-2021. It is important to note that the current version of the SSMP is nearing the end of its 5-year life span. In 2022, a new SSMP will be completed to cover 2022 -2027.Therefore; some of the discussion may provide recommendations on how the new SSMP could be improved to reflect different aspects of The City program.
The 2021 internal audit addresses the compliance status, effectiveness, and deficiencies and recommendations for the following sections of the SSMP:
1. The City’s SSMP Goals.
2. The City’s Organization Structure.
3. The City’s Legal Authority.
4. The City’s Operation and Maintenance Activities.
5. The City’s Design and Performance Provisions.
6. The City’s Overflow Emergency Response Program (OERP).
7. Fats, Oils, and Grease (FOG) Control Program.
8. The City’s System Evaluation & Capacity Analysis Plan (SECAP).
9. The City’s Monitoring, Measurement and Program Modifications.
10. The City’s SSMP Program Audits.
11. The City’s Communication Program.
Audit of Section 1. Goals
The City has defined the following nine goals in the SSMP:
1. Minimize sanitary sewer overflows.
2. Prevent public health hazards.
3. Minimize inconveniences by responsibly handling interruptions in service.
4. Protect the large investment in the collection system by maintain adequate capacities and extending useful life.
5. Prevent unnecessary damage to public and private property.
6. Use funds available for sewer operations in the most efficient manner
7. Convey wastewater to treatment facilities with a minimum of infiltration, inflow and exfiltration.
8. Provide adequate capacity to convey peak flows
9. Perform all operations in a safe manner to avoid personal injury and property damage
Compliance Status
The City is compliant with requirements 1) through 9) on this section.
Effectiveness
The stated goals are meant to concentrate efforts on minimizing occurrences of SSO events, as well as mitigation their impact on public health and the environment
Deficiencies and Recommendations
No deficiencies have been identified with this element of the SSMP.
Audit of Section 2. Organization
According to State Water Resources Control Board Order No. 2006-003 Item 13 (ii), the SSMP must identify the:
a) Name of the responsible or authorized representative b) Names and telephone numbers for management, administrative, and maintenance positions responsible for implementing specific measures in the SSMP program.
Identify lines of authority in an organization chart or similar document with a narrative explanation; and
c) Chain of communication for reporting SSOs, from receipt of a complaint or other information, including the person responsible for reporting SSOs to the State and Regional Water Quality Control Board (RWQCB) and other agencies if applicable (such as County Health Officer, County Environmental Health Agency,and/or State Office of Emergency Services (OES)).
Compliance Status
The City is compliant with requirements a) through c) on this section.
Effectiveness
The organizational structure clearly identifies lines of authority as well as the key positions responsible for implementing specific measures in the SSMP. The chain of communication for reporting SSOs is also provided.
Deficiencies and Recommendations
The City has gone through a significant amount of staff turnover. Thus, the current organization is different from what it was when the 2017 SSMP was written , names and phone numbers need to be updated. The SSO Reporting Chain of Communication has not changed.
Audit of Section 3. Legal Authority
According to State Water Resources Control Board Order No. 2006-003 Item 13 (iii), the enrollee must demonstrate, through sanitary sewer system use ordinances, service agreements, or other legally binding procedures, that it possesses the necessary legal authority to:
a) Prevent illicit discharges into its sanitary sewer system (examples may include infiltration and inflow (I/I), storm water, chemical dumping, unauthorized debris and cut roots, etc…);
b) Require that sewers and connections be properly designed and constructed; c) Ensure access for maintenance, inspection, or repairs for portions of the lateral owned or maintained by the Public Agency;
d) Limit the discharge of fats, oils, and grease and other debris that may cause blockages, and
e) Enforce any violation of its sewer ordinances.
Compliance Status
The City is compliant with requirements a) through e) on this section.
Effectiveness
The City’s legal authority is derived through the City Council. The rules and regulations that govern the Sewer Collection System can be found within several ordinances within the City of Manhattan Beach Municipal Code. Please reference Table 3 – Legal Authority Checklist in the 2017 SSMP
Deficiencies and Recommendations
The section of the SSMP has no significant deficiencies and is generally satisfactory.
Audit of Section 4. Operation and Maintenance
This section of the SSMP discusses the operation and maintenance program to comply with the SSMP requirements through preventive and cleaning routines, staff training, and appropriate equipment.
Collections System Mapping
Maintain an up-to-date map of the sanitary sewer system, showing all gravity line segments and manholes, pumping facilities, pressure pipes and valves, and applicable st orm water conveyance facilities.
Compliance Status
The City is compliant with the requirements of this section.
Effectiveness
The City uses a Geographic Information System (GIS) to manage its database of extensive information about the sanitary sewer network. This includes attribute data for mains, laterals, manholes, and pump stations. Maps of non -sanitary sewer elements include water, storm drain, street , county trunk sewer, and other underground utility data. Maps are routinely updated with new information.
Deficiencies and Recommendations
No deficiencies found
Routine and Preventive Maintenance Program
Describe routine preventive operation and maintenance activities by staff and contractors; including a system for scheduling regular maintenance and cleaning of the sanitary sewer system with more frequent cleaning and maintenance targeted at known problem areas. The Preventative Maintenance (PM) program should have a system to document scheduled and conducted activities, such as work orders.
Compliance Status
The City is not fully compliant with this section.
Effectiveness
The problem sewers are identified, prioritized and scheduled for maintenance based on a comprehensive review of the maintenance history and system characteristics of the sewer system including overflows, blockages, age, material and condition. Maintenance includes high velocity sewer cleaning, vacuuming and manual rodding. The power systems are start tested weekly by staff, and undergo motor and generator servicing bi-annually by Power Plus, Inc. The back-up generator is tested by running it once per month under no-load conditions, in compliance with local Air Quality Management District regulations.
Deficiencies and Recommendations
The City has had challenges in meeting Cleaning and CCTV mileage goals as the Wastewater department has not had the man power to achieve its productivity goals. The City is currently in the process of preparing and RFP for CCTV services so it can work towards achieving its productivity goals.
Cleaning* CCTV
2019 2020 2021 2022
Goal (miles) 163.3 163.3
Actual (miles) 108.8 93.3
% of Goal 66% 57%
*Does not include miles from repeat cleaning
Another program enhancement has been better targeting of trouble areas or sewer "hot spots." These are areas in the sewer system known to be difficult to maintain, such as high - grease areas, or segments containing siphons. Sewer staff has experimented with different frequency intervals to find the ideal schedule for repeat cleaning activities. Continued analysis of these frequencies is recommended for optimal distribution of labor and equipment resources.
Rehabilitation and Replacement Plan
Develop rehab ilitation and replacement plan to identify and prioritize system deficiencies and implement short-term and long -term rehabilitation actions to address each deficiency. The program should include regular visual and TV inspections of manholes and sewer pipes , and a system for ranking the condition of sewer pipes and scheduling rehabilitation. Rehabilitation and replacement should focus on sewer pipes that are at risk of collapse or prone to more frequent blockages due to pipe defects. Finally, the rehabilitat ion and replacement plan should include a capital improvement plan that addresses proper management and protection of the infrastructure assets. The plan shall include a time schedule for implementing the short and long term plans plus a schedule for developing the funds needed for the capital improvement plan.
Compliance Status
The City is compliant in this section.
Effectiveness
The Sewer Capital Improvement Plan (CIP) targets segments of sewer system infrastructure that are at highest risk of failure.
Deficiencies and Recommendations
The City is currently scheduled to update the Sewer Master Plan in 2022. The Master Plan should be updated every ten years.
Staff and Contractor Training
Provide training on a regular basis for staff in sanitary sewer system operations, maintenance, and require contractors to be appropriately trained.
Compliance Status
The City is compliant with the requirements of this section.
Effectiveness
Sewer Maintenance Workers are trained in the proper operation and maintenance of all major wastewater equipment and facilities. Every staff member receives periodic formal safety training in confined space entry, trench shoring, traffic control, heat illness and hazardous material management.
Deficiencies and Recommendations
The City would need to increase the budget for more sewer specific training.
Equipment and Replacement Part Inventory
Provide equipment and replacement part inventories, including identification of critical replacement parts.
Compliance Status
The City is compliant with this element of the O&M section.
Effectiveness
Sufficient inventory of critical equipment and replacement parts is maintained at all times.
Deficiencies and Recommendations
N/A
Audit of Section 5. Design and Performance Provisions
This section of the SSMP must demonstrate that City has the following in place:
a) Design and construction standards and specifications for the installation of new sanitary sewer systems, pump stations and other appurtenances; and for the rehabilitation and repair of existing sanitary sewer systems; and
b) Procedures and standards for inspecting and testing the installation of new sewers, pumps, and other appurtenances and for rehabilitation and repair projects.
Compliance Status
The City is compliant with both a) and b) requirements of this section.
Effectiveness
A civil engineer designs each project and each project has its own custom specification written for the construction of that specific project.
Deficiencies and Recommendations
The City could use more staff to assist with managing the projects.
Audit of Section 6. Overflow Emergency Response Plan
The City is required to implement an overflow emergency response plan that includes a) Timely notification of SSOs to primary responders,
b) Appropriate response measures for all overflows,
c) Procedures for notifying appropriate regulatory agencies and other affected parties, d) Staff training an all elements of the overflow emergency response plan, e) Procedures to address other response activities such as traffic and crowd control, and f) Reasonable steps to contain and prevent the discharge of untreated wastewater to bodies of water and to minimize any adverse impact on the environment.
Compliance Status
The City is compliant with requirements a) through f) of this section of the SSMP.
Effectiveness
The City of Manhattan Beach Utilities Division maintains an up -to-date Sanitary Sewer Overflow Response Plan as mandated by the State Water Resources Control Board, which the City follows to provide formal notice to the Los Angeles County Department of Hea lth (LACDH) and the Office of Emergency Services (OES). The City encourages citizens to report overflows to the Utilities Division via the Public Works Department (business hours) and the
Regional Communication Center (after -hours). Sewer staff is availabl e 24 hours per day, seven days per week to receive and respond to calls, regardless of whether they originate on public or private property. There is a complaint phone log maintained of all calls. Once verified, all sewer overflows regardless of volume or potential impact are reported to all parties in the chain of communication within the City and to the appropriate regulatory agencies, as shown in Figures 1 and 2 in Chapter 2.
*July 1, 2018 – June 30, 2019
*July 1, 2019 – June 30, 2020
Deficiencies and Recommendations
N/A
Audit of Section 7. Fats, Oils and Grease (FOG) Control Program
The FOG control program should address the following elements, as appropriate:
a) Public outreach to promote the proper disposal of FOG. b) A plan for the disposal of FOG generated within the sanitary sewer service area. c) The legal authority to prohibit discharges to the system and prevent blockages and SSOs. d) Requirements and standards pertaining to grease removal devices. This may include installation, design, maintenance, best management practices, record keeping, and reporting requirements.
e) Authority to inspect and enforce FOG ordinances.
f) Identification of areas in the sanitary sewer system subject to FOG blockages and a maintenance cleaning schedule.
g) Source control measures for areas identified as subject to FOG blockages.
Compliance Status
The City is compliant with requirements a) through g) of this section of the SSMP.
FY 18-19 Spill Rate Index (spills/l00 mi/yr.)
Category 1
SSO
Category 2
SSO
Category 3
SSO
City of Manhattan Beach 0 0 3.63
State Municipal (Public) Average
Region Municipal Average
FY 19-20 Spill Rate Index (spills/l00mi/yr.)
Category 1
SSO
Category 2
SSO
Category 3
SSO
City of Manhattan Beach 0 0 2.42
State Municipal (Public) Average
Region Municipal Average
Effectiveness
The City utilizes a consultant to inspect and enforce FOG ordinances. Additionally, the City has the proper legal authority, permits and proper public outreach to comply with this section.
Deficiencies and Recommendations
Due to the recent FOG related SSOs the City would like to create a restaurant educational seminar to assist with compliance and avoid unnecessary FOG related SSOs.
Audit of Section 8. System Evaluation & Capacity Analysis Plan (SECAP)
The City must prepare and implement a capital improvement plan ( CIP) that will provide hydraulic capacity data on key sanitary sewer system elements for dry weather peak flow conditions, as well as the appropriate design for storm or wet weather events. At minimum, the plan must include
a) Evaluation,
b) Design Criteria,
c) Capacity Enhancement Measures, and
d) Schedule.
Compliance Status
The City is compliant with requirements a) through d) on this section.
Effectiveness
All information can be found in the 2010 Sewer Master Plan.
Deficiencies and Recommendations
The City is currently scheduled to update the Sewer Master Plan in 2022.
Audit of Section 9. Monitoring, Measurement, and Program Modifications
Compliance with this element of the SSM P requires to: a) Maintain relevant information that can be used to establish and prioritize appropriate SSMP activities.
a) Monitor the implementation, and measure the effectiveness of each element of the SSMP. b) Assess the success of the preventative maintenance program. c) Update program elements, as appropriate, based on monitoring or performance evaluations.
d) Identify and illustrate SSO trends, including frequency, location, and volume.
Compliance Status
The City is compliant with subsections a) through d) of this SSMP element.
Effectiveness
The City uses a variety of metrics to measure the effectiveness of different SSMP components.
Productivity standards for the Operation and Maintenance Program, for example, use footage/mileage goals for Cleaning and CCTV activities. Data is recorded for each crew daily.
Productivity can be assessed for time periods ranging from an hour to a year, and for individuals or for the division. Data recorded in the field is compiled into an Access database and extracted into weekly, monthly, and yearly reports. SSO data is an important measure of sewer system performance. The frequency, location, and volume of SSOs is often used to determine how resources will be allocated. For example, Sm art Cover® manhole lids have been strategically placed in areas of The City more prone to overflows. Data will also be used to recalibrate the frequency of cleaning activity for problem areas, or sewer "hot spots." Sewer system management is regularly evaluated for effectiveness and when needed, protocols are updated to produce more favorable outcomes.
Deficiencies and Recommendations
The City needs to be complete more CCTV inspections but does not have sufficient staffing.
Audit of Section 10. SSMP Program Audits
The City should be conducting periodic internal audits to evaluate the effectiveness of the SSM P and compliance with the SSM P requirements. Identification of any deficiencies and steps to correct them should be included. At a minimum, these audits should occur every two years and a report kept on file.
Compliance Status
The City in not compliant in this section however, we are currently in the process of conducting our first program audit and will continue to do so as required every two years.
Effectiveness
N/A
Deficiencies and Recommendations
N/A
Audit of Section 11. Communication Program
This section requires The City to communicate on a regular basis with the public on the development, implementation, and performance of its SSMP. The public should have the opportunity to provide input as the program is being developed and implemented. There should also be a plan of communication with tributary and/ or satellite systems.
Compliance Status
The City is compliant in this section.
Effectiveness
The City utilizes public outreach via the City website. Additionally, residents are notified prior to a project starting.
Deficiencies and Recommendations
N/A
Certification of Self-Audit
By signing below, we certify the information contained in this self-audit report is correct to the best of our knowledge.
Name Position Signature Date
Lou Vargas Utilities Manger
Rudy Hurtado Wastewater Supervisor
Nicholle Petroff Management Analyst
12/29/2021
12/29/2021
12/29/2021
City of Manhattan Beach SSMP
106
Appendix F – FOG Facilities
Ameci Pizza & Pasta Man Bch 1751 Artesia Blvd Manhattan Beach, California Grease Interceptor Amigos Tacos 1221 Artesia Blvd Manhattan Beach, California None Arthur J 903 Manhattan Ave Manhattan Beach, California Grease Trap Baja Sharkeez (UNDER
CONSTRUCTION)
3600 Highland Ave Manhattan Beach, California Grease Trap Barnes & Noble Café 1800 Rosecrans Ave Manhattan Beach, California Grease Interceptor Beach Chinese Food To Go 314 Rosecrans Ave Manhattan Beach, California Grease Trap Beach Pizza Inc 3301 Highland Ave Manhattan Beach, California None Becker's Bakery 1025 Manhattan Ave Manhattan Beach, California None Belamar Hotel, The 3501 N Sepulveda Blvd Manhattan Beach, California Grease Interceptor Boba Loca Manhattan Beach 210 N Aviation Blvd STE C Manhattan Beach, California None Bobo Chinese Deli 2114 Highland Ave Manhattan Beach, California Bristol Farms 1570 Rosecrans Ave Manhattan Beach, California Grease Interceptor Brooklyn Brick Oven Pizza 500 S Sepulveda Blvd STE 203 Manhattan Beach, California None Cafe Rio 1800 Rosecrans Ave G Manhattan Beach, California Grease Interceptor Cafe Wild 3505 Highland Ave Manhattan Beach, California Grease Trap California Pizza Kitchen 3280 N Sepulveda Blvd Manhattan Beach, California Grease Interceptor Castle,The (OWNER NO THERE TO
ALLOW INSPECTION)
2401 N Sepulveda Blvd Manhattan Beach, California
Chilis Grill and Bar #860 2620 N Sepulveda Blvd B Manhattan Beach, California Grease Interceptor Coast (CLOSED) 1017 Manhattan Ave Manhattan Beach, California Corner Bakery Cafe 3208 N Sepulveda Blvd B Manhattan Beach, California Grease Interceptor Domino's Pizza #7842 3001 N Sepulveda Blvd STE A Manhattan Beach, California None El Gringo Manhattan 921 N Sepulveda Blvd Manhattan Beach, California None El Pollo Loco #5905 800 N Sepulveda Blvd Manhattan Beach, California Grease Interceptor El Sombrero #1 1005 Manhattan Ave Manhattan Beach, California Grease Trap El Sombrero #2 1157 Artesia Blvd B Manhattan Beach, California None El Tarasco 316 Rosecrans Ave Manhattan Beach, California Grease Trap El Tarasco 350 N Sepulveda Blvd , Manhattan Beach, CA, 90266-6742 El Torito Restaurant 600 S Sepulveda Blvd , Manhattan Beach, CA, 90266-6913 Ercoles Bar And Grill 1101 Manhattan Ave Manhattan Beach, California Grease Trap Fatburger 1139 Artesia Blvd C Manhattan Beach, California Grease Trap Fishbar 3801 Highland Ave Manhattan Beach, California Grease Trap Fishing With Dynamite (Shared with MB
Post)
1148 Manhattan Ave 1 Manhattan Beach, California Grease Trap Fresh Brothers 2008 N Sepulveda Blvd Manhattan Beach, California Grease Trap Fruition Organic Market 350 N Sepulveda Blvd Manhattan Beach, California None Fusion Sushi 1150 Morningside Dr Manhattan Beach, California Grease Interceptor Grunions 1501 N Sepulveda Blvd Manhattan Beach, California None Hangar Inn 1001 N Aviation Blvd Manhattan Beach, California None Hennesseys Tavern 313 Manhattan Beach Blvd Manhattan Beach, California Grease Trap Homie (UNDER CONSTRUCTION) 1140 Highland Ave Manhattan Beach, California Houstons Restaurant (CLOSED TEMP) 1550 Rosecrans Ave STE A Manhattan Beach, California Hummus Factory, The 1570 Rosecrans Ave STE L Manhattan Beach, California None Il Fornaio 1800 Rosecrans Ave , Manhattan Beach, CA, 90266-3773 Grease Interceptor India's Tandoori 916 N Sepulveda Blvd Manhattan Beach, California Grease Trap Islands Fine Burgers & Drinks 3200 N Sepulveda Blvd STE D1 Manhattan Beach, California Grease Interceptor Izaka -Ya By Katsu-Ya, The 1133 Highland Ave Manhattan Beach, California Grease Trap Jamba Juice #54 (CLOSED - HEALTH
NUT COMING SOON)
332 Manhattan Beach Blvd Manhattan Beach, California
Johnny Rockets 1550 Rosecrans Ave STE C Manhattan Beach, California Grease Trap Kettle,The 1139 Highland Ave Manhattan Beach, California None Le Pain Quotidien 451 Manhattan Beach Blvd Manhattan Beach, California None Lemonade Restaurant 451 Manhattan Beach Blvd Manhattan Beach, California Grease Trap Les P'Tits Bretons (CLOSED PERM) 2201 Highland Ave Manhattan Beach, California Lido De Manhattan Bakery 3001 N Sepulveda Blvd STE D Manhattan Beach, California Grease Trap Lido Di Manhattan 1550 Rosecrans Ave STE D Manhattan Beach, California Grease Interceptor Little Sister (NOW CALLED NANDOS -
OPENS AT 4pm
1131 Manhattan Ave Manhattan Beach, California
Local Yolk Llc, The 3414 Highland Ave Manhattan Beach, California None Love And Salt 317 Manhattan Beach Blvd Manhattan Beach, California Grease Trap Lucifer's Pizza 400 N Sepulveda Blvd #A Manhattan Beach, California Grease Interceptor M & Love 3319 Highland Ave Manhattan Beach, California Grease Trap Mangiamo 128 Manhattan Beach Blvd Manhattan Beach, California Grease Trap Manhattan Beach Brewing Co. Inc. 124 Manhattan Beach Blvd Manhattan Beach, California Grease Trap Manhattan Beach Post (Shared with
FWD)
1142 Manhattan Ave Manhattan Beach, California Grease Trap Manhattan Beach Yacht Club 1 Manhattan Beach Blvd Manhattan Beach, California Manhattan Bread & Bagel 1812 N Sepulveda Blvd Manhattan Beach, California Grease Trap Manhattan House, Lp 1019 Manhattan Beach Blvd Manhattan Beach, California Grease Trap Manhattan Pizzeria 133 Manhattan Beach Blvd Manhattan Beach, California Grease Trap Mc Donald's #11194 1852 Manhattan Beach Blvd Manhattan Beach, California Grease Interceptor Mc Donald's Of Man Bch Inc. 1203 Artesia Blvd Manhattan Beach, California Grease Interceptor Mercado (UNABLE TO INSPECT -
OPENS AT 4)
3212 N Sepulveda Blvd A Manhattan Beach, California Grease Interceptor Mercedes Binge (OPEN IN JULY) 309 Manhattan Beach Blvd Manhattan Beach, California Nicks 451 Manhattan Beach Blvd D 126 Manhattan Beach, California Grease Interceptor Noahs Bagels #2546 330 Manhattan Beach Blvd 332 Manhattan Beach, California None North End Caffe 3421 Highland Ave Manhattan Beach, California Grease Trap Nothing Bundt Cakes 1570 Rosecrans Ave STE Q Manhattan Beach, California Grease Trap O-Sho Restaurant 913 N Sepulveda Blvd Manhattan Beach, California Grease Trap Ob's Grill & Bar 3610 Highland Ave Manhattan Beach, California None Ocean View Cafe 229 13TH St Manhattan Beach, California Olive Garden #1723, The 2610 N Sepulveda Blvd STE 1 Manhattan Beach, California Grease Interceptor Pachanga Mexican Grill 1590 Rosecrans Ave Manhattan Beach, California Grease Trap Pancho's Abbjohn, Inc. 3615 Highland Ave Manhattan Beach, California None Panda Express Inc 356 125 S Sepulveda Blvd Manhattan Beach, California Grease Interceptor Peet's Coffee & Tea 328 Manhattan Beach Blvd Manhattan Beach, California Grease Trap Petros (OPENS AT 4) 451 Manhattan Beach Blvd STE B110 Manhattan Beach, California
Grease Interceptor
Pisces 3216 Highland Ave Manhattan Beach, California Grease Trap Pitfire Artisan Pizza 401 Manhattan Beach Blvd Manhattan Beach, California Grease Interceptor Ralphs Grocery Company #166 2700 N Sepulveda Blvd Manhattan Beach, California Grease Interceptor Rice 820 Manhattan Ave #105 Manhattan Beach, California None Rice Teriyaki Sushi Grill 1570 Rosecrans Ave STE P Manhattan Beach, California Grease Trap Ripe Choice, The 312 Rosecrans Ave Manhattan Beach, California None Rock N Fish 120 Manhattan Beach Blvd Manhattan Beach, California Grease Trap Rockefeller Manhattan Beach, The 1209 Highland Ave , Manhattan Beach, CA, 90266 Grease Trap Rubios Fresh Mexican Grill #24 2000 N Sepulveda Blvd Manhattan Beach, California Grease Trap Sesame Moe's Manhattan Beach 2640 N Sepulveda Blvd , Manhattan Beach, CA, 90266-2724 Shellback Tavern 116 Manhattan Beach Blvd Manhattan Beach, California Grease Trap Simmzy's 229 Manhattan Beach Blvd Manhattan Beach, California Grease Trap Sions Mexican Restaurant 235 N Sepulveda Blvd Manhattan Beach, California None Slay Italian Kitchen 1001 Manhattan Ave Manhattan Beach, California Grease Trap Slay Steak & Fish House 1141 Manhattan Ave Manhattan Beach, California Grease Trap Sloopys Beach Cafe 3416 Highland Ave Manhattan Beach, California None Strand House, The 117 Manhattan Beach Blvd Manhattan Beach, California Grease Interceptor Summers Sport Bar (OPENS 5PM) 3770 Highland Ave Manhattan Beach, California Sunlife Organics (CLOSED - SWEET
LADY JANE BAKERY COMING SOON)
452 Manhattan Beach Blvd D125 Manhattan Beach, California Surf Food Stand 4115 The Strand Manhattan Beach, California None Susiecakes Bakery 3500 N Sepulveda Blvd Manhattan Beach, California Grease Trap Taco Bell #28542 301 N Sepulveda Blvd Manhattan Beach, California Grease Interceptor Tacolicious 1129 Manhattan Ave Manhattan Beach, California None Thai Dishes Restaurant 1015 N Sepulveda Blvd Manhattan Beach, California Grease Trap The 900 Club 900 Manhattan Ave Manhattan Beach, California None The Garden Thai Restaurant 210 N Aviation Blvd Manhattan Beach, California Grease Interceptor Tin Roof Bistro 3500 N Sepulveda Blvd 100 Manhattan Beach, California Grease Interceptor Tomboy's 1816 Manhattan Beach Blvd Manhattan Beach, California None Two Guns Espresso 350 N Sepulveda Blvd STE 7 Manhattan Beach, California Grease Trap Uncle Bills Pancake House 1305 Highland Ave Manhattan Beach, California Grease Trap Union Pizza Company 1570 Rosecrans Ave K Manhattan Beach, California Grease Trap Urban Beach Cafe 1600 Rosecrans Ave BLDG 5 A Manhattan Beach, California Grease Interceptor Urban Plates 2650 N Sepulveda Blvd Manhattan Beach, California Grease Interceptor Valentinos Pizza 975 N Aviation Blvd Manhattan Beach, California None Verandas (CLOSED TEMP) 401 Rosecrans Ave Manhattan Beach, California Von's #2275 410 Manhattan Beach Blvd Manhattan Beach, California Grease Interceptor Waca Sushi 302 Rosecrans Ave Manhattan Beach, California None Yanagi Kitchen Sushi Rolls & Bowls 3001 N Sepulveda Blvd STE C Manhattan Beach, California Grease Trap Zinc At Shade Hotel 1221 N Valley Dr Manhattan Beach, California Grease Trap City of Manhattan Beach SSMP
111
Appendix G – Standard Operating Procedures
City of Manhattan Beach SSMP
128
Appendix H – Existing Pump Inventory
6-2
City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan
Wastewa
ter Master Plan
Table 6-1
Pump Stations
Motor Specifications
Pump Stati on
Location
Date of
Cons.
Plan
No.
Area
Se
rved
(Acres)
Force
Main
Dia
(in)
Force
Main
Length
(ft)
For
ce
Main
Material Type
Wet We ll
D
imensions
Generator
Set
Number
of
Pumps
Pump
Mfg Pump Type
Pump
Model
Estimated
Flow
Capacity
(gpm) RPM Phase HP
ADWF
(gpm)
PDWF
(gpm)
PWWF
(gpm)
Bell Av enue Bell Ave between 31st St
and 31st Pl 1938
S-60
S-150
S-
230
78 6 900 CIP Wetwell/
Drywell 12' x 9.5' x ~7' Diesel
Fueled 2 Flygt submersible, non-clog CT3102 263 1750 3 5 70 198 278 Palm Av enue Palm Av e south of
Rosecrans Av e 1953 S-14
9 S-
230 39 6 775 CIP Wetwell/
Drywell 10' x 4' x ~11.5' Diesel
Fueled 2 Flygt submersible, non-clog CT3127 174 1740 3 10 38 114 159 Pacific Av enue Pacific Av e south of 31st
St 1953 S-149 103 6 1,225 CIP Wetwell/
Drywell 10' x 4' x ~11.5' Diesel
Fueled 2 Flygt submersible, non-clog CT3127 304 1740 3 10 98 269 376 Poinsettia Avenue Poinsettia Ave south of
Manhattan Beach Blvd 1949 S-22
7 S-
145 25 4 163 CIP Wetwell/
Drywell 18.6 ft2 x 6'-10" Diesel
Fueled 2 Flygt submersible, non-clog CT3102 136 NA 3 NA 19 60 85 Meadows Avenue Meadows Ave south of
9th St 1953 S-14
8 S-
230 99 6 730 CIP Wetwell/
Drywell 10' x 4' x ~11.5' Diesel
Fueled 2 Flygt submersible, non-clog CT3127 304 1740 3 10 77 216 303 Voorhees Avenue Voorhees Ave at Rowell
Av e 1953 S-14
8 S-
230 103 6 1,321 CIP Wetwell/
Drywell 10' x 4' x ~11.5' Diesel
Fueled 2 Flygt submersible, non-clog CT3127 227 1740 3 10 90 250 350 Civic Center Highland Ave south of
15th St 1992 - Civic Center
Bulding - - - Submersible - - 2 - - - - - - - - - -
Pier End of Manhattan Beach
Pier 1992 - Pier
Restaurant 4 - CIP Submersible 4' x 4' x 4' - 2 - submersible - - - - 3 - - - General Pump Station Information Pump Specifications Estimated Flows City of Manhattan Beach SSMP
130
Appendix I – Hot Spot Cleaning
City of Manhattan Beach SSMP
136
Appendix 1 – Code of Ordinance, Title 5 – Sanitation and Health, Chapter 5.36 – Sewers, Sewage Disposal – City Sewage System
5.36.170 – Sewer Connection
It shall be unlawful for any person to make, or cause to be made, any sewer connection referred to or designated in this chapter pursuant to any such permit at any place other than that designated therein.
5.36.240 – Maintenance of House Connection Sewers
All house connection sewers, industrial connection sewers and appurtenances thereto shall be maintained by the owner of the property served in a safe and sanitary condition, and all devices or safeguards which are required by this chapter or any other law of the City for the operation thereof shall be maintained in good working order.
5.36.250 – Depositing of Industrial Waste and Solids in Sewers It shall be unlawful for any person to place, throw or deposit, or cause or permit to be placed, thrown or deposited, in any public sewer or sewer connection any dead animal, offal, or garbage, or to place, throw or deposit or discharge, or cause or permit to be placed, thrown, deposited or discharged, in any such sewer any fish, fruit or vegetable waste or other solid matters or materials or obstructions of any kind whatever of such nature as shall clog, obstruct or fill such sewer, or which shall interfere with or prevent the effective use or operation thereof. It shall be unlawful for any person to cause or permit to be deposited or discharged into any such sewer any water, sewage or liquid waste of any kind containing chemicals, greases, oil, tar or other matters in solution which may by reason of precipitation clog, obstruct or fill the same, or which may in any way interfere with or prevent the effective use thereof, or which may necessitate or require frequen t repair, cleaning out or flushing of such sewer to render the same operative.
5.36.260 – Dilution and Neutralization of Acids and Corrosive Liquids In no case shall acids or corrosive liquids liable to destroy or damage a public or house connection sewer be discharged into such sewer without being fully diluted and neutralized by passing through a properly constructed dilution and neutralizing sink or tank. Such sink or tank shall be automatically provided with a sufficient intake of water or neutralizing medium or substance so as to make its contents non -injurious before being discharged.
5.36.270 – Storm Waters
It shall be unlawful for any person to connect any roof conductor, yard drain or other conduit used for carrying off rain or surface water with any sanitary sewer of the City or house connection sewer leading thereto.
City of Manhattan Beach SSMP
137
5.36.280 – Cellar Shower Drainage
Any cellar drain or any shower in a basement or roofed shower in a yard shall be protected to prevent the admission of sand, detritus and storm or surface water into the sewer.
When necessary, in the opinion of the Division Superintendent, a person shall trap such appurtenances by a sand interceptor constructed in accordance with the provisions of the Uniform Plumbing Code.
5.36.290 – Swimming Pools
It shall be unlawful for any person to connect any swimming pool or tank to any public sewer in the City or house connection leading thereto, except in those instances where the topography, gradients, capacities and/or other features of the public sewer permit such over quantitative discharge, or control outlined by the Engineering Department.
5.36.300 – Over quantitative Discharge
Application must be made to the Public Works Department for permission to discharge water from swimming pools or other large quantities of water. A permit fee will be charged as established by the Council under separate resolution.
5.36.310 – Alterations Must Conform
All renewals or alterations of any public or house connection sewer, or any repairs or additions thereto, must conform to the requirements of the Uniform Plumbing Code and/or the Special Plans and Specifications No. ST-5 referred to in Section 5.36.170.
5.36.330 - Draining Cesspools or Septic Tanks
A. No person shall connect or cause to be connected any cesspool or septic tank to any public sewer or house sewer connection leading thereto.
B. No effluent from cesspools or septic tanks may be discharged or pumped into any house sewer connection or public sewer or manhole.
City of Manhattan Beach SSMP
138
Appendix 2 – Code of Ordinance, Title 5 – Sanitation and Health, Chapter 5.38 – Fats, Oils and Grease Management And Discharge Control
5.38.015 – FOG Discharge Requirement
No FSE shall discharge or cause to be discharged into the sewer system FOG that exceeds a concentration level adopted by the City or that may accumulate and/or cause or contribute to blockages in the sewer system or at the sewer system later al which connects the FSE to the sewer system.
5.38.020 – Prohibitions
The following prohibitions shall apply to all FSEs:
A. No person shall discharge, or cause to be discharged any wastewater from FSEs directly or indirectly into the sewer system without f irst obtaining an FOG wastewater discharge permit pursuant to this chapter.
B. Discharge of any waste, including FOG and solid materials removed from the grease control device to the sewer system, is prohibited.
C. Discharge of any waste or FOG to the sewer system which fails to comply with the FOG Discharge Manual is prohibited.
D. Discharge of any waste or FOG to the sewer system in a manner which either violates the sewer WDRs or causes or contributes to a condition which fails to comply with the sewer WDRs is prohibited.
5.38.025 – Food Grinders Prohibited
A. No food grinder shall be installed in a plumbing system of new construction of an FSE.
B. All food grinders shall be removed from an existing FSE upon:
1. Major operational change to the FSE; or
2. Any construction requiring the issuance of a building permit for either remodeling or construction of the FSE valued at fifty thousand dollars ($50,000.00) or more.
All food grinders shall be removed from all existing FSEs within 180 days of the effective date of the ordinance from which this chapter was derived, except when expressly allowed by the Director.
5.38.030 – Best Management Practices Required
A. All FSEs shall implement best management practices in its operation to minimize the discharge of FOG to the sewer system.
B. All FSEs must implement and demonstrate compliance with best management practices (BMP) requirements as specified in the City's FOG Discharge Manual. Detailed requirements for best management practices are specified in the FOG Discharge Manual and may include kitchen practices and employees training that are essential in minimizing FOG discharges.
5.38.035 – FOG Pretreatment Required
FSEs are required to install, operate and maintain an approved type and adequately sized grease interceptor necessary to maintain compliance with the objectives of this City of Manhattan Beach SSMP
139
chapter in accordance with the FOG Discharge Manual and the requirements of 40 CFR § 403.5.
5.38.045 – Multiple FSEs at Commercial Properties
For properties at which multiple FSEs are operated on a single parcel, each FSE operator shall be individually and separately responsible for installation and maintenance of the grease interceptor serving its FSEs and for compliance with this chapter. Furthermore, owners of commercial properties at which multiple FSEs are operated on a single parcel shall be responsible for ensuring compliance by each FSE on the parcel. Such operators and/or property owner can comply with this chapter by installing and maintaining a grease interceptor or grease interceptors serving multiple FSEs upon approval by the Director on such terms and conditions that the Director may establish in his sole discretion.
5.38.050 – Grease Disposal Mitigation Fee
A. FSEs that operate without a grease control interceptor may be required to pay an annual grease disposal mitigation fee to equitably cover the costs of increased maintenance and administration of the sewer system as a result of the FSEs' inability to adequately remove FOG from its wastewater discharge. This section shall not be interpreted to allow a new FSE or existing FSEs undergoing remodeling or change in operations, to operate without an approved grease interceptor unless the Director has determined that it is impossible to install or operate a grease control interceptor for the FSE under the provisions of this chapter.
B. The grease disposal mitigation fee shall be established by resolution of the City Council, and shall be based on the e stimated annual increased cost of maintaining the sewer system for inspection and removal of FOG and other viscous or solidifying agents attributable to the FSE resulting from the lack of a grease interceptor or grease control device and such other costs that the City Council considers appropriate.
C. The grease disposal mitigation fee may not be waived or reduced when the FSE does not comply with the minimum requirements of this chapter and/or its discharge into the sewer system in the preceding twelve (12) m onths has caused or potentially caused or contributed alone or collectively, in sewer blockage or an SSO in the sewer downstream, or surrounding the FSE prior to the waiver request.
D. At a minimum, the grease disposal mitigation fee shall be equivalent to th e City's cost to:
1. Conduct quarterly inspections of FSE premises for compliance with this chapter;
2. Clean the city sewer line that is impacted by the FSEs waste water discharges twice a year; and
3. Review the FSEs sewer lateral cleaning records.
5.38.055 – Sewer System Overflows, Public Nuisance, Abatement Orders and Cleanup Costs
Notwithstanding any waiver of grease interceptor requirements under this chapter, FSEs determined by the Director to have contributed to a sewer blockage, SSOs or any se wer system interferences resulting from the discharge of wastewater or waste City of Manhattan Beach SSMP
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containing FOG, may be ordered by the Director to immediately install and maintain a grease interceptor, and may be subject to a plan determined by the Director t o abate the nuisance and prevent any future health hazards created by sewer line failures and blockages, SSOs or any other sewer system interferences. SSOs may cause threat and injury to public health, safety, and welfare of life and property and are hereb y declared public nuisances. Furthermore, sewer lateral failures and SSOs caused by FSEs alone or collectively are the responsibility of the private property owner and/or FSE, and individual(s) as a responsible officer or owner of the FSE. If the City must act immediately to contain and clean up an SSO caused by blockage of a private or public sewer lateral or serving an FSE, or at the request of the property owner or operator of the FSE, or because of the failure of the property owner or FSE to abate the condition causing immediate threat of injury to the health, safety, welfare, or property of the public, the City's costs for such abatement may be entirely borne by the property owner or operator of the FSE, and individual(s) as a responsible officer or owner of the FSE(s) and may constitute a debt to the City and become due and immediately payable upon the City's request for reimbursement of such costs.
5.38.060 – FOG Wastewater Discharge Permit Required
A. FSEs proposing to discharge or currently discharging wastewater-containing FOG into the City's sewer system shall obtain an FOG wastewater discharge permit from the City within either:
1. One hundred eighty (180) days from the effective date of this chapter; or
2. At the time any FSE applies for or ren ews its annual business license from the City. Compliance with this chapter must be demonstrated at the time any business license is issued, provided that the Director may extend the compliance date for no more than ninety (90) days after the date of the issuance of the license.
B. FOG wastewater discharge permits shall be expressly subject to all provisions of this chapter and all other regulations, charges for use, and fees established by the City. The conditions of FOG wastewater discharge permits shall be enforced by the City in accordance with this chapter and applicable State and Federal regulations.
C. The City shall not issue a certificate of occupancy for any new construction, or occupancy unless an FSE has fully complied with the provisions of this chapter.
5.38.065 – FOG Wastewater Discharge Permit Application
Any person required to obtain an FOG wastewater discharge permit shall complete and file with the City prior to commencing discharges, an application in a form prescribed by the Director and shall provide the City such plans, information, and documents as the Director determines is necessary and appropriate to properly evaluate the application. The applicable fees shall accompany this application. After evaluation of the data furn ished, the Director may issue an FOG wastewater discharge permit, subject to terms and conditions set forth in this chapter and as otherwise determined by the Director to be appropriate to protect the City's sewer system.
5.38.070 – FOG Wastewater Discharge Permit Condition
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The issuance of an FOG wastewater discharge permit may contain any of the following conditions or limits as determined by the Director:
A. Limits on discharge of FOG and other priority pollutants; B. Requirements for proper operation and maintenance of grease interceptors and other grease control devices;
C. Grease interceptor maintenance frequency and schedule; D. Requirements for implementation of best management practices and installation of adequate grease interceptor and/or grease control devices; E. Requirements for maintaining and reporting status of best management practices; F. Requirements for maintaining and submitting logs and records, including waste hauling records and waste manifests;
G. Requirements to self-monitor;
H. Requirements for the FSE to construct, operate, and maintain, at its own expense, FOG control device and sampling facilities;
I. Consent by the operator of the FSE for the City and other regulatory agencies to inspect the FSE to confirm compliance with this chapter, the NPDES permit and other applicable laws, rules and regulations;
J. Additional requirements as otherwise determined to be reasonably appropriate by the Director to protect the City's system or as specified by other regulatory agencies; or K. Other terms and conditions, which may be reasonably applicable to ensure compliance with this chapter as determined by the Director.
5.38.105 – Grease Interceptor Requirements
A. No waste water discharges from FSEs shall be introduced into the sewer system until the required grease interceptors have been approved by the Director.
B. Grease interceptors shall be maintained in efficient operating condition in accordance with the FOG Discharge Manual.
C. Grease interceptors must be cleaned, maintained, and FOG must be removed from grease interceptors at regular intervals.
D. FOG removed from grease interceptors shall be waste hauled periodically as part of the operation and maintenance requirements for greas e interceptors and disposed of at an approved location in a proper manner and at regular intervals.
5.38.110 – Monitoring and Reporting Conditions
A. Monitoring for Compliance with FOG Wastewater Discharge Conditions and Reporting Requirements.
1. The Director may require periodic reporting of the status of implementation of best management practices, in accordance with the FOG control program and the FOG Discharge Manual.
2. The Director may require visual and other monitoring at the sole expense of the permitted to observe the actual conditions of the FSEs sewer lateral and sewer lines downstream.
3. The Director may require reports for self -monitoring of wastewater constituents and FOG characteristics of the permitted needed for determining compliance with any conditions or requirements as specified in the FOG wastewater discharge permit or this chapter. Monitoring reports of the analyses of wastewater City of Manhattan Beach SSMP
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constituents and FOG characteristics shall be in a manner and form approved by the Director and shall be submitted upon request of the Director.
4. Failure by the permitted to perform any required monitoring, or to submit monitoring reports required by the Director constitutes a violation of this chapter and shall be cause for the City to initiat e all necessary tasks and analyses to determine the wastewater constituents and FOG characteristics for compliance with any conditions and requirements specified in the FOG wastewater discharge permit or in this chapter.
5. The permitted shall be responsible for any and all expenses of the City in undertaking such monitoring analyses and preparation of reports.
6. Other reports may be required such as compliance schedule progress reports, FOG control monitoring reports, and any other reports deemed reasonably appropriate by the Director to ensure compliance with this chapter.
B. Record Keeping Requirements. The permitted shall be required to keep all documents identified by the Director relating to its compliance with this chapter, including manifests, receipts and invoices of all cleaning, maintenance, grease removal of/from the grease control device, disposal carrier and disposal site location for no less than two (2) years.
The permitted shall, upon request, make the manifests, receipts and invoices available to any City representative, or inspector. These records may include:
1. A logbook of grease interceptor, and/or other grease control device cleaning and maintenance practices;
2. A record of best management practices being implemented including employee training;
3. Copies of records and manifests of waste hauling interceptor contents;
4. Records of sampling data and sludge height monitoring for FOG and solids accumulation in the grease interceptors; or
5. Any other information deemed appropriate by the Director to ensure compliance with the ordinance from which this chapter was derived.
C. Falsifying Information or Tampering with Process. It shall be unlawful to make any false statement, representation, record, report, plan or other document that is filed with the C ity, or to tamper with or knowingly render inoperable any grease control device, monitoring device or method or access point required under this chapter.
5.38.115 – Inspection and Sampling Conditions
A. The Director may inspect or order the inspection and sample the wastewater discharges of any FSE to ascertain whether the intent of this chapter is being met and the permitted is complying with all requirements. The permitted shall allow the City access to the FSE premises, during normal busin ess hours, for purposes of inspecting the FSE's grease control devices and/or interceptor, reviewing the manifests, receipts and invoices relating to the cleaning, maintenance and inspection of the grease control devices or interceptor.
B. The Director shall have the right to place or order the placement on the FSE's property or other locations as determined by the Director, such devices as are necessary to conduct sampling or metering operations. Where an FSE has security measures in force, the permitted shall make necessary arrangements so that
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representatives of the City shall be permitted to enter without delay for the purpose of performing their specific responsibilities.
C. For the Director to determine the wastewater characteristics of the discharger for purposes of determining the annual use charge and for compliance with permit requirements, the permitted shall make available for inspection and copying by the City all notices, monitoring reports, waste manifests, and records including, but not limited to, those related to wastewater generation, and wastewater disposal without restriction but subject to the confidentiality provision set forth in this chapter. All such record s shall be kept by the permitted a minimum of two (2) years.
5.38.120 – Right of Entry
Persons or occupants of premises where wastewater is created or discharged shall allow the Director, or City representatives, reasonable access to all parts of the FSE and all wastewater generating and disposal facilities for the purposes of inspection and sampling during all times the discharger's facility is open, operating, or any other reasonable time.
No person shall interfere with, delay, resist or refuse entrance to City representatives attempting to inspect any FSE or facility involved directly or indirectly with a discharge of wastewater to the City's sewer system.
5.38.125 – Notification of Spill
A. In the event a permitted is unable to comply with any permit condition due to a breakdown of equipment, accidents, or human error or the permitted has reasonable opportunity to know that his/her/its discharge will exceed the discharge provisions of the FOG wastewater discharge permit or this chapter, the discharger shall immediately notify the City by telephone at the number specified in the permit. If the material discharged to the sewer has the potential to cause or results in sewer blockages or SSOs, the discharger shall immediately notify the City, the Los Angeles County Department of Public Health, the Regional Water Quality Control Board, and the California State Office of Emergency Services if the SSO is 1,000 gallons or more.
B. Confirmation of this notification shall be made in writing to the Director at the address specified in the permit no later than five (5) working days from the date of the incident.
The written notification shall state the date of the incident, the reasons for the discharge or spill, what steps were taken to immediately correct the p roblem, and what steps are being taken to prevent the problem from recurring.
C. Such notification shall not relieve the permitted of any expense, loss, damage or other liability which may be incurred as a result of damage or loss to the City or any other damage or loss to person or property; nor shall such notification relieve the permitted of any fees or other liability which may be imposed by this chapter or other applicable law.
5.38.130 – Enforcement
A. The City Council finds that, in order for the City to comply with the laws, regulations, and rules imposed upon it by regulatory agencies and to ensure that the City's sewer facilities are protected and are able to operate with the highest degree of efficiency and to protect the public health and the environment, specific enforcement provisions must be adopted to govern the discharges to the City's sewer system by FSEs.
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B. To ensure that all interested parties are afforded due process of law and that violations are resolved as soon as possible, a permitted, or applicant for a permit, may appeal any determination made by the Director, including but not limited to a denial of a discharge permit, a notice of violation, permit suspension or re vocation, or a compliance schedule agreement (CSA), pursuant to the procedures set forth in Section 5.38.185.
C. The City, at its discretion, may utilize anyone, combination, or all enforcement remedies provided in this chapter in response to any FOG wastewat er discharge permit or chapter violations.
5.38.135 – Violations
A. The owner and operator of an FSE or permitted shall be in violation of this chapter if such owner or operator or permitted:
1. Fails to install approved grease control device as required by this chapter;
2. Makes any false statement, representation, record, report, plan or other document that is filed with the City;
3. Tampers with or knowingly renders inoperable any grease control device required under this chapter;
4. Fails to clean, maintain or remove grease from a grease control device within the required time for such cleaning, maintenance or grease removal;
5. Fails to keep up -to-date and accurate records of all cleaning, maintenance, and grease removal and upon request to make those records avai lable to any City code enforcement representative, or his or her designee, any representative of a local sanitation agency that has jurisdiction over the sanitary sewer system that services the food facility, or any authorized inspector that has jurisdiction under the water quality chapter;
6. Refuses a City code enforcement representative, or his or her designee, a representative of a local sanitary sewer agency that has jurisdiction over the sanitary sewer system that services the food facility, or any autho rized inspector, reasonable access to the food facility for the purposes of inspecting, monitoring, or reviewing the grease control device manifests, receipts and invoices of all cleaning, maintenance, grease removal of/from the grease control device, and/ or to inspect the grease control device;
7. Disposes of, or knowingly allows or directs FOG to be disposed of, in an unlawful manner;
8. Fails to remove all food grinders located in the food facility by the date specified by this chapter;
9. Introduces additives into a wastewater system for the purposes of emulsifying FOG without the written, specific authorization from the sanitary sewer agency that has jurisdiction of the sanitary sewer system that services the food facility;
10. Fails to pay the grease disposal mitigation fee as specified in this chapter when due;
11. Fails to comply with the FOG Discharge Manual; or
12. Otherwise fails to comply with the provisions of this chapter or any permit issued by the City under this chapter.
B. Violations under this section shall be subject to the procedures, penalties and remedies set out in this chapter and Chapter 1.04. All costs for the investigations, City of Manhattan Beach SSMP
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enforcement actions, and ultimate corrections of violations under this section, incurred by the City shall be reimbursed by the owner/operator of the FSE.
5.38.140 – Compliance Schedule Agreement (CSA)
A. Upon determination by the Director that a permitted or other owner or operator of an FSE or owner of a property is in noncompliance with the terms and conditions specified in its permit or any provision of this chapter, or needs to construct and/or acquire and install a grease control device or grease interceptor, the Director may require the permitted, owner or operator to enter into a CSA.
B. The issuance of a CSA may contain terms and conditions as determine appropriate by the Director, including but not limited to requirements for installation of a grease control device, grease interceptor and facilities, submittal of drawings or reports, audit of waste hauling records, best management and waste minimization practices, payment of fees, or other provisions to ensure compliance with this chapter.
C. The Director shall not enter into a CSA until such time as all amounts owed to the City, including user fees, noncomplianc e sampling fees, or, or other amounts due are paid in full, or an agreement for deferred payment secured by collateral or a third party, is approved by the Director. If compliance is not achieved in accordance with the terms and conditions of a CSA during its term, the Director may issue an order suspending or revoking the discharge permit pursuant to this chapter.
5.38.145 – Permit Suspension
A. The Director may suspend any permit when it is determined that a permitted:
1. Fails to comply with the terms and conditions of a CSA order;
2. Knowingly provides a false statement, representation, record, report, or other document to the City;
3. Refuses to provide records, reports, plans, or other documents required by the City to determine permit terms or conditions, discharge compliance, or compliance with this chapter;
4. Falsifies, tampers with, or knowingly renders inaccurate any monitoring device or sample collection method;
5. Refuses reasonable access to the Permittee's premises for the purpose of inspection and monitoring;
6. Does not make timely payment of all amounts owed to the City for user charges, permit fees, or any other fees imposed pursuant to this chapter;
7. Causes interference, sewer blockages, or SSOs with the City's collection, treatment, or disposal system; or
8. Violates grease interceptor maintenance requirements, any condition or limit of its discharge permit or any provision of this chapter.
B. When the Director has reason to believe that grounds exist for permit suspension, he/she shall give writte n notice thereof by certified mail to the permitted setting forth a statement of the facts and grounds deemed to exist.
C. Effect.
1. Upon an order of suspension by the Director, the permitted shall immediately cease and desist its discharge and shall have no right to discharge any wastewater containing FOG directly or indirectly to the City's system for the City of Manhattan Beach SSMP
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duration of the suspension. All costs for physically terminating and reinstating service shall be paid by the permitted.
2. Any owner or responsible management employee of the permitted shall be bound by the order of suspension.
5.38.150 – Permit Revocation
A. Revocation. The Director may revoke any FOG wastewater discharge permit when it is determined that a permitted has failed to comply with this chapter.
B. Notice of Revocation. When the Director has reason to believe that grounds exist for the revocation of a permit, he/she shall give written notice by certified mail thereof to the permitted setting forth a statement of the facts and grounds.
C. Effect of Revocation.
1. Upon an order of revocation by the Director becoming final, the permitted shall permanently lose all rights to discharge any wastewater containing FOG directly or indirectly to the City's system. All costs for physical termination shall be paid by the permitted.
2. Any owner or responsible management employee of the permitted shall be bound by the order of revocation.
3. Any future application for a discharge permit at any location within the City by any person associated with an order of revocation will be considered by the City after fully reviewing the records of the revoked permit, which records may be t he basis for denial of a new permit.
4. An order of permit revocation issued by the Director of Public Works shall be final in all respects on the sixteenth (16th) day after it is mailed to the permitted.
5.38.155 – Damages to Facilities or Interruption of Normal Operations A. Any person who discharges any waste, including but not limited to those listed under 40 CFR § 403.5, which causes or contributes to any sewer blockage, SSOs, obstruction, interference, damage, or any other impairment to the City's sewer facilities or to the operation of those facilities shall be liable for all costs required to clean or repair the facilities together with expenses incurred by the City to resume normal opera tions. The total amount shall be payable within forty-five (45) days of invoicing by the City.
B. Any person who discharges a waste which causes or contributes to the City violating its discharge requirements established by any regulatory agency incurring add itional expenses or suffering losses or damage to the facilities, shall be liable for any costs or expenses incurred by the City, including regulatory fines, penalties, and assessments made by other agencies or a court.
5.38.160 – Public Nuisance
Discharge of wastewater in any manner in violation of this chapter or of any order issued by the Director, as authorized by this chapter, is hereby declared a public nuisance, and shall be corrected or abated as directed by the Director. Any person creating a publ ic nuisance is guilty of a misdemeanor.
5.38.165 – Termination of Service
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A. The City, by order of the Director, may physically terminate sewer service and water service to any FSE, as follows:
1. On a term of any order of suspension or revocation of a permit; or
2. Upon the failure of a person not holding a valid discharge permit to immediately cease the discharge, whether direct or indirect, to the City's sewer facilities after the notice and process as provided herein.
B. All costs for physical termination shall be paid by the owner or operator of the FSE or permitted as well as all costs for reinstating service.
5.38.170 – Emergency Suspension Order
The City may, by order of the Director, suspend sewer service and/or water service when the Director determines that such suspension is necessary in order to stop an actual or impending discharge which presents or may present an imminent or substantial endangerment to the health and welfare of persons, or to the environment, or may cause SSOs, sewer blockages, interference to the City's sewer facilities, or may cause the City to violate any State or Federal law or regulation. Any discharger notified of and subject to an emergency suspension order shall immediately cease and desist the dischar ge of all wastewater containing FOG to the sewer system.
5.38.175 – Civil Penalties
A. In addition to criminal penalties and administrative penalties authorized by this Code, all users of the City's system and facilities are subject to enforcement actions administratively or judicially by the City, U.S. EPA, State of California Regional Water Quality Control Board, or the County of Orange Los Angeles, and other regulatory agencies. Said actions may be taken pursuant to the authority and provisions of several laws, including but not limited to:
1. Federal Water Pollution Control Act, commonly known as the Clean Water Act (33 U.S.C.A. Section 1251 et seq.);
2. California Porter-Cologne Water Quality Control Act (California Water Code Section 13000 et seq.);
3. California Hazardous Waste Control Law (California Health & Safety Code Section 25100 et seq.);
4. Resource Conservation and Recovery Act of 1976 (42 U.S.C.A Section 6901 et seq.); and
5. California Government Code, Sections 54739—54740.
B. In the event the City is subject to the payment of fines or penalties pursuant to the legal authority and actions of other regulatory or enforcement agencies based on a violation of law or regulation or its permits, and said violation can be established by the City, as caused by the discharge of any user of the City's system which is in violation of any provision of the City's chapter or the user's permit, the City shall be entitled to recover from the user all costs and expenses, including, but not limited to, the full amount of said fines or penalties to which it has been subjected.
C. Pursuant to the authority of California Government Code Sections 54739—54740, any person who violates any provision of this chapter; any permit condition, prohibition, or effluent limit; or any suspension or revocation order shall be liable civilly for a sum not to exceed twenty-five thousand dollars ($25,000.00) per violation for each day in which City of Manhattan Beach SSMP
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such violation occurs. Pursuant to the authority of the Clean Water Act, 33 U.S.C. Section 1251 et seq., any person who violates any provision of this chapter, or any permit condition, prohibition, or effluent limit shall be liable civilly for a sum not to exceed twenty- five thousand dollars ($25,000.00) per v iolation for each day in which such violation occurs. The City Attorney of the City, upon request of the Director, shall petition the Superior Court to impose, assess, and recover such penalties, or such other penalties as the City may impose, assess, and recover pursuant to Federal and/or State legislative authorization.
D. Administrative Civil Penalties. Pursuant to the authority of California Government Code Sections 54740.5 and 54740.6, the City may issue an administrative complaint to any person who violates:
1. Any provision of this chapter;
2. Any permit condition, prohibition, or effluent limit; or
3. Any suspension or revocation order.
5.38.165 – Criminal Penalties
Any person who violates any provision of this chapter is guilty of a misdemeanor, which upon conviction is punishable by a fine not to exceed one thousand dollars ($1,000.00), or imprisonment for not more than six (6) months, or both. Each violation and each day in which a violation occurs may constitute a new and separate violation of this chapte r and shall be subject to the penalties contained herein.
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Appendix 3 – Equipment and Replacement Parts Inventory
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City of Manhattan Beach
Sewer System Management Plan
2022
The City maintains equipment and performs weekly testing to guarantee a ready state for immediate deployment in an emergency.
Sewer Line Cleaning Equipment
▪ 1 Combination Vacuum/Hydro jet truck with capacity for clearing 800 feet of sewer or storm drainpipe (¾ inch high pressure hose)
▪ 1 Hydro Jet truck with 600-foot cleaning capacity, one inch hose ▪ Replacement leader hoses and an array of cleaning nozzles for sewer and storm drain cleaning ▪ 1 replacement spool of 400 feet of ¾ inch high pressure hose for the combination truck Light/Heavy Equipment
▪ 1 Case 580L backhoe, 1 four-yard front end loader, 1 medium duty dump and flatbed truck, one 15 TON boom crane, 1 medium duty single axle-6-wheel dump truck ▪ 2 six-inch diesel pumps – these pumps can be used for bypassing sewer lift stations or moving large amounts of storm water from retention basins
▪ 2 twenty-three-foot suction hoses
▪ 800 feet of four-inch flat poly discharge hose
Sewer Lift Stations
▪ 1 replacement pump for two sewer lift stations – Poinsettia and Bell ▪ 1 replacement pump for one sewer lift station – Pacific ▪ 3 replacement pumps for three sewer lift stations – Voorhees, Palm, and Meadows (These pumps are to be set in place on a temporary basis until repairs or replacements on permanent pumps can be done.)
▪ 1 replacement pump for Pier lift station
▪ 2 six-inch check valves
▪ 1 four-inch check valve
▪ 1 eight-inch check valve
▪ 2 eight-inch gate valves
▪ 3 sets of floats
▪ 3 transformers
▪ Replacement fuses for each station – located at each station ▪ 2 Siemens transducers for the hydroranger level controls Sewer Pipe
▪ 28 feet total of four-inch clay pipe with repair couplings and 3 twenty-two and ½ degree, 5 forty- five degree and 1 ninety-degree 4-inch pipe fittings and 1 eight-inch by four-inch Y ▪ 50 feet of six-inch clay pipe with repair couplings and 7 twenty-two and ½ degree, 3 ninety degrees (elbow style) 6-inch pipe fittings and 4 six-inch by six-inch Y’s and 3 six-inch saddles ▪ 35 feet of eight-inch clay pipe with repair couplings and 1 twenty-two and ½ degree, 5 forty-five degrees, and 3 ninety-degree 8-inch pipe fittings and 2 eight-inch by eight-inch Y’s and 1 eight- inch T
▪ 5 feet of twelve-inch clay pipe with repair couplings ▪ 7 feet of fifteen-inch clay pipe with repair couplings ▪ 6 feet of eighteen-inch clay pipe with repair couplings City of Manhattan Beach SSMP
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Appendix 4 – Wastewater Master Plan – Section 4, Criteria
SECTION 4
CRITERIA
4-1 GENERAL
Establishing performance standards is an important part of evaluating wastewater co llection systems, as it forms the basis for system analysis and system im provement recommendations. These standards include methodology for estimating wastewater design flows and minimum design standards for the collection system pipes, pump stations, and force mains.
Average wastewater flows can be reasonably estimated from land use and their corresponding unit flow factors. The results are then compared to measured flows. Peaking factors are needed for estimating peak dry weather and peak wet weather flows. Peak wet weather flows include an allowance for inflow and infiltration (I/I).
Collection system design standards include minimum pipe size, minimum flow velocity, and depth of flow to pipe diameter ratio (d/D). Pump station criteria include the capacity and number of pumps, wet well and force main sizes, redundancy, emergency power, remote moni toring capabilities, as well as safety and regulatory agency requirements. Finally, facility useful lives are needed for adequately scheduling replacement of the aging infrastructure.
4-2 FLOW MONITORING
Data collection and review is essential in developi ng unit flow factors, calibrating the system model, and estimating the ultimate average day and peak flows.
A temporary flow monitoring study was conducted by ADS Environmental Services from December 21, 2008 to March 14, 2009 at eight locations. The selected flow monitoring locations and a summary of the results are shown on Figure 4-1 and in Table 4-1. The measured flows are graphically depicted on Figure 4-2. Detailed flow monitoring data can be found in Appendix 1.
The flow monitoring sites were strategically select ed to aid in the development of unit flow factors and calibration of the model. Sites were selected in an a ttempt to get a good sampling of data across the study area. At the same time, the areas tributary to each site must generate depths of flow large enough to develop accurate wastewater flows.
4-1 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
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#*
#*
#*
#*
#*
#*
#*
#*
#*#* !(
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City of
El Segundo
City of
Hermosa Beach
City of
Redondo Beach
City of
Hawthorne
Pacific Ocean
Marine Sports Park
Mariott
Golf Course
Manhattan
Village
Manhattan
Marketplace
Meadows
Elementary
School
Manhattan
Beach
Intermediate
School
Manhattan
Beach
Middle
School
Polliwog
Park
Manhattan
Heights Park
Mira Costa
High School
Pennekamp
Elementary
School
Pacific
Elementary
School
Robinson
Elementary School
Live
Oak
Park
Grandview
Elementary
School
Sand
Dune
Park
The Strand
The Strand
Civic
Center
City
Yard
Water
Res
Water
Res
Marine
Avenue
Park
Manhattan
Village
Park
Raleigh
Studios
LACSD PS
24-101
25-036
06-298
01-076
04-060
01-194
02-051
06-323A
Pier PS
Meadows
Ave PS
Palm
Ave
PS
Bell
Ave PS
PS
Pacific
Ave
PS
Voorhees
Ave PS
Poinsettia
Ave PS
9TH ST
8TH ST
11TH ST
OCEAN DR
2ND ST
10TH ST
6TH ST
THE STRAND
VALLEY DR
HIGHLAND AVE
ROSECRANS AVE
AVIATION BLVD
MARINE AVE
SEPULVEDA BLVD
PACIFIC AVE
27TH ST
PECK AVE
ARDMORE AVE
35TH ST
MEADOWS AVE
ROWELL AVE
19TH ST
OAK AVEELM AVE
HERRIN ST
31ST ST
5TH ST
23RD ST
POINSETTIA AVE
3RD ST
MANHATTAN BEACH BLVD
VISTA DR
HARKNESS ST
ALMA AVE
21ST ST
CREST DR
15TH ST
18TH ST
ARTESIA BLVD
1ST ST
17TH ST
36TH ST
35TH PL
36TH PL
DIANTHUS ST
31ST PL
30TH ST
33RD PL
29TH ST
BLANCHE RD
24TH ST
4TH ST
WALNUT AVE
7TH ST
26TH ST
MAPLE AVEMANHATTAN AVE
PINE AVE
20TH PL
LAUREL AVE
GATES AVE
CEDAR WAY
JOHN PL
BAYVIEW DR
CURTIS AVE
28TH ST
34TH ST
WENDY WY
JOHNSON ST
MAGNOLIA AVE
PARKVIEW AVE
NELSON AVE
33RD ST
11TH PL
12TH ST
MANZANITA LN
RUHLAND AVE
MATHEWS AVE
PACIFIC PL
DUNCAN PL
FAYMONT AVE
CARLOTTA WAY
13TH ST
LYNNGROVE DR
PALM AVE
3RD PL
VOORHEES AVE
4TH PL
JOHN ST
DUNCAN AVE
KEATS ST
KUHN DR
5TH PL
BELL AVE
16TH ST
19TH PL
6TH PL
BOUNDARY PL
25TH ST
MAGNOLIA WAY
15TH PL
HIGHVIEW AVE
16TH PL 14TH ST
18TH PL
HERRIN AVE
7TH PL
LARSSON ST
VILLAGE CIR
17TH PL
2ND PL
CEDAR AVE
8TH PL
21ST PL
1ST PL
41ST ST
38TH ST
40TH ST
44TH ST
45TH ST
39TH ST
ANDERSON ST
PROSPECT AVE
TENNYSON ST
43RD ST
42ND ST
9TH PL
FAIRWAY DR
MANOR DR
38TH PL
AGNES RD
23RD PL
REDONDO AVE
RONDA DR
22ND ST
KELP ST
GULL ST
20TH ST
CHABELA DR
CHESTNUT AVE
AVIATION WY
14TH PL
SHELL ST
27TH PL
HOMER ST
SAUSALITO CIR
MARINE PL
34TH PL
26TH PL
12TH CT
30TH PL
MORNINGSIDE DR
WESTPORT
SEAVIEW ST
29TH PL
FLOURNOY RD
AVIATION PL
EL PORTO ST
28TH PL
MARKET PLVILLAGE DR
10TH PL
DUNCAN DR
MOONSTONE ST
CHATHAM
GRANDVIEW AVE
BRIDGEPORT
24TH PL
MALAGA WY
ROSECRANS PL
11TH Pl
LAUREL SQ
13TH PL
12TH PL
CENTER PL
25TH PL
TERRAZA PL
HALEY WY
6TH PL
2ND ST
29TH ST
36TH PL
15TH ST
35TH PL
CHESTNUT AVE
ELM AVE
20TH ST
3RD ST
OAK AVE
30TH ST
12TH ST
1ST PL
3RD PL
GATES AVE
23RD PL
6TH ST
VOORHEES AVE
AGNES RD
8TH PL
2ND PL
CREST DR
BELL AVE
18TH ST
23RD ST
REDONDO AVE
35TH ST
2ND PL
WALNUT AVE
19TH ST
30TH ST
23RD PL
PECK AVE
12TH ST
1ST ST
17TH ST
35TH PL
36TH ST
JOHN ST
17TH ST
10TH ST
7TH PL
34TH PL
29TH PL
14TH ST
19TH ST
4TH PL
27TH PL
22ND ST
CURTIS AVE
27TH ST
14TH ST
26TH ST
CREST DR
5TH ST8TH ST
28TH PL
5TH ST
5TH PL
26TH PL
6TH ST
18TH ST
18TH ST
25TH ST
PALM AVE
9TH ST
11TH PL
33RD ST
28TH ST
9TH PL
21ST ST
11TH ST
33RD ST
3RD ST
1ST PL
36TH PL
23RD ST
12TH ST
13TH ST
30TH PL
3RD ST
MARINE AVE
17TH ST
33RD PL
PINE AVE
5TH ST
23RD ST
1ST ST
12TH ST
11TH PL
18TH ST
1ST ST
PINE AVE
21ST PL
POINSETTIA AVE
29TH PL
³
0 1,200 2,400600
Feet
1" = 1,200'
Flow Monitoring Site with Manhole ID
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Flow Monitoring Tributary Area Boundary
Low Density Residential
Medium Density Residential
High Density Residential
Downtown Commercial
Local Commercial
General Commercial
North End Commercial
Manhattan Village
Mixed-Use Commercial
Industrial
Parks / Open Space
Public Facilities
Legend
#*
!(
!(
##-###
#*
PROJECT NO: 1640901.10
DATE: September 2009
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Flow Monitoring
Locations
Figure 4-1
CRITERIA
Table 4-1
Flow Monitoring Results
Min Ave Max Min Ave Max Min Ave Max
1 01194-01195 01-194 Redondo Ave and Manhattan
Beach Blvd 18 Unit Flow Factor 422 1.8 3.9 5.9 0.3 1.9 3.4 0.017 0.367 0.987 2 06311-06323A 06-323A Marine Ave between Pine Ave
and Elm Ave 18 Calibration 516 1.9 4.7 7.2 0.9 2.2 3.3 0.071 0.572 1.329 3 04059-04060 04-060 8th St between Johnson St and
Meadows Ave 12 Unit Flow Factor 92 1.1 2.2 3.5 0.2 0.8 1.3 0.006 0.057 0.159 4 25035-25036 25-036
On the easement west of
Parkview Ave, between Park
Way and Village Dr
12 Unit Flow Factor 86 1.3 2.4 3.9 0.8 1.7 3.1 0.024 0.128 0.308 5 02051-02052 02-051
On the easement between
intersection of Wendy Way &
23rd St and Aviation Blvd
8 Unit Flow Factor 70 0.2 2.3 4.1 0.3 0.9 1.8 0.001 0.057 0.182 6 24100-24101 24-101 Marine Ave and Gateway Dr 15 Unit Flow Factor 81 1.6 3.4 5.7 0.5 1.9 3.1 0.033 0.270 0.777 7 01073-01076 01-076 Gates Ave and Herrin St 8
D/S of Voorhees PS
Forcemain & Unit
Flow Factor
118 0.4 2.8 5.9 0.1 1.9 4.6 0.001 0.163 0.553
8 06297-06298 06-298
Poinsettia Ave and Marine Ave;
downstrem of Pacific Pump
Station
8 D/S of Pacific PS
Forcemain & Unit
Flow Factor
172 0.2 1.3 3.2 1.1 5.9 11.6 0.002 0.190 0.982
Gross
Area
(Ac)
Site
ID Pipe ID
Manhole
ID Location
Flow (mgd)Pipe
Size
(in) Reason
Depth (in) Velocity (ft/s)
4-3
City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan
Wastewater Master Plan
CRITERIA
Figure 4-2
Measured Flow Data
0.000
0.100
0.200
0.300
0.400
0.500
0.600
0.700
0.800
0.900
1.000
1.100
1.200
1.300
1.400
12345678
Flow (mgd)
Flow Monitoring Site
Minimum Flow
Average Flow
Maximum Flow
4-3 UNIT FLOW FACTORS
Unit flow factors utilized in this study were devel oped based upon the existing land uses obtained from the City’s GIS, and results of the flow monitoring studies discussed in Sub-section 4-2. Water use records, aerial photographs and field reviews supplemented this information.
The average daily flow recorded at each flow monito ring site was utilized in determining calibrated existing unit flow factors for each land use, which are shown in Table 4-2. The flow factors were developed in units of gallons per day per acre.
4-4 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
CRITERIA
Table 4-2
Unit Flow Factors
Unit Flow Factor
(gpd/ac)
Downtown Commercial DC 1,500
General Commercial GC 1,500
High Density Residential - District 1 & 2 HDR 3,000
High Density Residential - District 3 & 4 HDR3 4,200
Industrial IND 2,000
Local Commercial LC 1,500
Low Density Residential - District 1 LDR1 1,100
Low Density Residential - District 2 LDR2 1,400
Low Density Residential - District 3 LDR3 3,800
Medium Density Residential - District 1 MDR1 1,400
Medium Density Residential - District 2 MDR2 1,600
Medium Density Residential - District 3 MDR3 4,000
Mixed-Use Commercial MUC 1,500
Manhattan Village MV 1,600
North End Commercial NEC 1,500
Parks/Open Space OS 200
Public Facilities PF 1,200
Land Use Description
4-4 PEAKING FACTORS
Peak Dry Weather
The wastewater unit flow factors discussed in Sub-section 4-3 are used to generate average dry weather flows (ADWF) entering the collection system. However, the adequacy of a sewage collection system is based upon its ability to convey the peak flow s. At any point in the system, peak dry weather flow (PDWF) is estimated by converting the total average flow upstream of the point in question to peak dry weather flow by an empirical peak-to-average relationship.
The peaking formula commonly used in sewerage studies is of the following form:
PDWF = a x ADWF
b where PDWF = Peak Dry Weather Flow
ADWF = Average Dry Weather Flow
a, b = Peaking Formula Coefficients
The temporary flow monitoring data was reviewed to develop peaking relationships at each site. As expected, these relationships varied from site to site depending upon the makeup and size of the tributary land use. Coefficient “b” is typically found to be in the range of 0.91 to 0.92 based on empirical studies.
Using a coefficient “b” of 0.92, the resulting coefficient “a” can be calculated from the measured flow data.
The calculated coefficient “a” for each flow monitoring site is shown graphically on Figure 4-3.
The following peaking relationship was selected for this study:
PDWF (mgd) = 2.35 x ADWF (mgd)
0.92 4-5 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
CRITERIA
Figure 4-3
Peaking Formula Coefficient “a”
0.0 0.2
0.4 0.6
0.8 1.0
1.2 1.4
1.6 1.8
2.0 2.2
2.4 2.6
2.8 3.0
3.2 3.4
3.6 3.8
4.0 4.2
4.4 4.6
12345678
Flow (mgd)
Flow Monitoring Site
Recommended
Coefficient = 2.35
It should be noted that Site 7 and Site 8 were locat ed downstream of a sewer pump station force main discharge location. The peaking coefficients are believed to be unusually high and were therefore not incorporated into the development of the recommended coefficient.
Peak Wet Weather
The peak wet weather flow (PWWF) has two component s: peak dry weather flow (PDWF) and rainfall dependent inflow/infiltration (I/I) as expressed by the following equation:
PWWF = PDWF + I/I
Inflow and infiltration is discussed further in Sub-section 4-5.
Although the flow monitoring effort for this study co vered the normal wet weather period, significant precipitation did not occur to develop what would be co nsidered peak wet weather flows. Until wet weather flow data can be collected, it is recommended that the peak wet weather flow be estimated as the following:
Peak Wet Weather Flow (PWWF) = 1.35 x Peak Dry Weather Flow (PDWF)
Although the PWWF/PDWF factor of 1.35 may not cover all situations, it is not reasonable or feasible to design the sewer system to carry the flows that would resu lt from the use of a larger ratio. Instead, it is recommended that the City concentrate on projects such as replacing manhole covers, installing plugs in manhole covers, and replacing or relining cracked pipes to reduce inflow and infiltration. 4-6 City of Manhattan Beach
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4-5 INFLOW AND INFILTRATION
Inflow is the surface water that typically gains entr y to the sewer system thr ough perforated or unsealed manhole covers during rainfall events. Infiltration is def ined as water entering the collection system from the ground through defective pipes, pipe joint connections, or manhole walls. The sewer system design capacity must include allowances for these extraneous flow co mponents, which inevitably become a part of the total flow. The amount of inflow and infiltration (I/I) that enters the system typically depends upon the availability, adequacy, and location of the storm water drainage fac ilities; age and condition of st ructures; materials and methods of construction; the location of the groundwate r table; and the characteristics of the soil. In the absence of flow monitoring data, many regulatin g agencies utilize commonly accepted practices for estimating I/I. For example, I/I is often estimated ba sed on the diameter and lengt h of pipeline (100 to 400 gpd/ in. dia/ mile) or as a percentage of the peak flow or pipeline capacity.
AKM’s experience from other master planning studies and review of limited flow monitoring information available during severe rainfall events indicate that the peak wet weather flow can vary from 110 percent of peak dry weather flows in steeper areas with adequate drainage facilities, to over 200 percent of peak dry weather flows in flat areas that lack significant drainage facilities.
For this study, extraneous flow due to inflow and infilt ration is included in the peak wet weather flow formula described in Subsection 4-4. If better data becomes av ailable subsequently for sp ecific areas, the analysis should be updated based upon that information.
4-6 SEWER DESIGN CRITERIA
Design criteria are established to ensure that the wast ewater collection system can operate effectively under all flow conditions. Each pipe segment must be capable of carrying peak wet weather flows in the hydraulically stable zone of the pipe. Low flows must be conveyed at a ve locity that will prevent solids from settling and blocking the system.
The design capacity of a gravity pipeline is the calculated capacity of the pipeline based on the Manning formula:
Q = 1.486 A R
2/3 S1/2 / n where, Q = flow in cubic feet per second
R = hydraulic radius in feet = A / P
A = cross-sectional area of flow in the pipe in square feet P = wetted perimeter in feet
S = slope of pipe in feet of rise per foot of length
n = Manning’s friction factor
Sewer system capacity is established using a Manning’s friction factor of 0.013 for vitrified clay pipe.
The design and analysis of sewer pipes is typically bas ed upon the depth to diameter ratio (d/D). In this study, existing pipes are considered capacity deficient if t he d/D is above 0.64 at peak dry weather flows.
This d/D ratio was arrived at by taki ng 75 percent of a pipe’s maximum stable flow capacity, which is at a d/D of 0.82. The area above a d/D of 0.82 is considered hydraulically unstable. This provides capacity for 25 percent of peak dry weather flow for inflow and infiltration. Calculated capacity deficiencies should be verified through flow monitoring prior to replacing facilities.
4-7 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
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The extra pipeline capacity allows for the possibility that actual wastewater flows may be slightly higher than anticipated, especially during the hours when instant aneous or intermittent peaks may occur. These peaks are generally observed between the hours of 6:00 a.m. and 9:00 a.m. and 7:00 p.m. and 9:00 p.m. during weekdays and somewhat later in the morning hours durin g weekends in the predominantly residential areas.
They may also be observed during rainfall events due to inflow and infiltration. Additionally, the area above the water surface helps to keep the sewage aerated, reducing the possibility of septic conditions and odors.
For new construction, the design and analysis of gravity sewer pipes should be based on the following depth to diameter ratios:
Pipes 12-inches and smaller in diameter shall be designed to flow at a maximum d/D of 0.50 under peak dry weather flows
Pipes 15-inches and greater in diameter shall be designed to flow at a maximum d/D of 0.64 under peak dry weather flows
For either group, the depth of flow to diameter ra tio shall not exceed 0.82 with peak wet weather flows
At a minimum, all pipes should be 8 inches or larger in diameter and the velocity of flow in the pipe should be greater than 2 feet per second at av erage dry weather flow (ADWF). This velocity will prevent deposition of solids in the sewer and help to resuspend any material s that may have already settled in the pipe. The minimum corresponding slopes for various pipe sizes are shown in Table 4-3.
Table 4-3
Minimum Sewer Sizes
Sewer Size 2 ft/s Velocity Slope
8" 0.0057
10" 0.0042
12" 0.0033
15" 0.0019
18" 0.0014
21" 0.0011
24" 0.0008
27" 0.0008
30" 0.0007
33" 0.0006
36" & larger 0.0005
It is imp
ortant to note that the slopes listed above assume the depth of flow in the pipe is 50 or 64 percent full.
If there is insufficient flow to create this condition, greater slopes than those shown may be required.
The peak flow velocity should be less than 10 feet per second in vitrified clay pipe and 5 feet per second in poly vinyl chloride (PVC) pipe.
4-7 PUMP STATION DESIGN CRITERIA
It is desirable to develop a sewer collection system with as few pump stations as possible due to the associated cost and maintenance required. Pump stat ions must be designed to be reliable, and sized with 4-8 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
CRITERIA
sufficient capacity. They must contain redundant equipment, an emergency powe r supply, bypass pumping capability, sufficient wet well storage, and be able to notify the appropriate personnel in the event of failure.
The primary components of a typical pump station ar e the wet well, motors, valves, dry well, pumps, ventilation, electrical, controls and the force main. The following general criteria are recommended.
The wet well stores the incoming wastewater until a pump is activated to discharge it to a gravity facility for further conveyance. It should be designed with sufficient capacity to prevent short cycles whereby the pumps frequently start and stop, yet small enough that it will r egularly evacuate sewage from the wet well to prevent the wastewater from becoming septic. Generally, the de sired number of pump cycles should be limited to no more that 6 per hour for motors up to 10 horsepower. Motors up to 75 horsepower should start no more than 4 times per hour. Larger motors should cycle less frequently. Pump stations should also have sufficient volume to store sewage in the event of mechanical or el ectrical failures, until the City can respond to the failure and prevent overflows. The necessary emergency storage is dependent upon how rapidly the City can respond to a failure and mitigate it. A minimum emergency storage of 30 minutes at peak wet weather flow should be provided.
The pumps should be sized to efficiently handle the peak wet weather flows. A minimum of two pumps sized at the peak wet weather flow to the station should be prov ided so that sufficient standby capacity is available when one pump is removed for repairs or experiences a mechanical failure. The pumps should be able to pass a minimum solid size of 3 inches without clog ging. The shafts, seals and impellers should be constructed of wear resistant material to provide long life. Tungsten Carbide seals, Ni-Hard impellers, and 316 stainless steel pump shafts are recommended. For services where aggressive agents may be found in the sewage, such as at golf courses, complete stainl ess steel construction is recommended. This includes the pump bowl, shaft, impeller, and motor housing.
The dry well houses the valves, pumps, motors and electrical equipment and controls. It must be well ventilated and provide unobstruct ed access to all equipment. A minimum 3-foot clearance from all obstructions should be provided. Greater clearances may be required for equipment with special maintenance needs. Provisions for equipment remova l including hatches, large door openings, and hoists should also be provided.
The force mains should be selected to operate within a 3 feet per second to 5 feet per second velocity range, but should not be smaller than 4-inches in diameter.
While submersible pump stations may be utilized for the small flows, the larger pump stations should be the wet well/dry well type. They should be designed with ea sy access to all equipment. The National Electric Code classifies the wet wells of wastewater pumping stations as Class I, Group D, Division 1 facilities if ventilated at less than 12 air changes per hour, and Divi sion 2 if continuously ventilated at 12 or more air changes per hour. Dry wells, which are physically separated from wet wells, if ventilated at less than 12 air changes per hour, are classified as Class I, Group D, Di vision 2 locations. Wet wells, and under certain circumstances dry wells, are considered confined spaces and should be entered in accordance with the corresponding requirements of Occupational Safety and Health Administration (OSHA).
All pump stations should incorporate redundant control systems for operati on of the pumps. A float system should be used as a backup for a primary control system that utilizes an ultrasonic device or a bubbler system for level measurement and pump operation.
4-9 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
CRITERIA
Telemetry equipment which includes a telephone dialer as a minimum, must be provided at all sewer pump stations. When an alarm or failed condition occurs, the dialer calls pre-programmed telephone numbers in sequence until the call is acknowledged, indicating response will be provided by City staff. If the alarm or failed condition is not corrected within a set time, the dialer will call the pre-programmed numbers again. The dialer can also be used to remotely check the status of the station if de sired. A summary of sewer system design criteria is listed in Table 4-4.
Table 4-4
Sewer System Criteria
Collection System
Minimum Pipe Size 8-inch
Minimum Velocity 2.0 ft/sec at average flow
3.0 ft/sec at peak dry weather flow
Pipe Depth to Diameter
Ratio for Existing Pipes
0.64 for all pipe sizes at peak dry weather flow
0.82 for all pipe sizes at peak wet weather flow
Pipe Depth to Diameter
Ratio for New
Construction
0.50 for pipes 12-inches and smaller at peak dry weather flow
0.64 for pipes 15-inches and larger at peak dry weather flow
0.82 for all pipe sizes at peak wet weather flow
Pump Stations
Pumps Minimum 2 each sized at peak wet weather flow
Minimum solids handling capacity 3"
Wet Wells Sized to limit pump cycling to less than 4 to 6 times/hr Provide sufficient storage at peak wet weather flow to allow response to a failure
Equipment to be maintained must be accessible without entering structure
Ventilation 12 -air changes/hour minimum in dry well and as required by NFPA 820
30-air changes/hour minimum in wet well if not operated continuously
12-air changes/hour minimum in wet well if operated
continuously
Controls Redundant system. Float operated back-up controls.
Emergency Power Stationary source with automatic transfer switch Telemetry Dialer system at all pump stations to alert personnel in the event of a station failure.
Force Mains Minimum velocity 3.0 ft/sec, maximum velocity 5 ft/sec. Minimum size 4"
Air/Vacs installed in vaults
Plumb Air/Vac piping back to wet well to avoid discharges of raw sewage to vaults
4-10 City of Manhattan Beach
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CRITERIA
4-8 SERVICE LIFE OF PIPE AND LIFT STATION EQUIPMENT
In addition to the design criteria discussed in previous sections, the useful lives for which one can expect relatively trouble-free service is also of great importance when assessing an existing or future sewer system.
Once the service life of a facility is exceeded, it becomes subject to failure and is often expensive to maintain.
The determination of useful life can be difficult and depends on many different considerations including the following:
Type of materials used and recorded performance of similar installations Velocities and flow rates expected in the system
Chemical and biological co nditions of the wastewater Construction methods and installation
The values listed in Table 4-5 are generally accepted as prudent planning criteria and are used as benchmarks for replacement recommendations in this study.
Table 4-5
Planning Criteria for Facility Useful Life
Facility Description Useful Life (Years)
Gravity Sewers: Cast Iron Pipe (CIP) 20
Plastic Pipe 65
Vitrified Clay Pipe (VCP) 75
Force Mains: Asbestos-Cement Pipe (ACP) 40
Ductile Iron Pipe (DIP) 40
Plastic Pipe 30
Pump Stations: Structure 60
Piping 30
Valving 20
Mechanical 15
Electrical 15
4-9 CRITERIA FOR SPECIFIC PLANS AND DEVELOPMENT SUBAREAS Each party wishing to pursue development of a tract or area within the City’s study area shall develop a Sub- Area Master Plan (SAMP). The developer’s plans for providing adequate sewer service to all users within the proposed development, how the local sewer system w ill connect to the backbone and regional system, and the impact of the propos ed development to the downstream facilities (starting at the local system and extending to the regional system) shall be fully described in the SAMP. The local sub-area sewers shall meet the sewer design criteria provided in this document a nd the City Standard Drawings for Sewer Construction.
At a minimum, sewage flow calculations shall be based upon the unit flow factors described in Section 4-3, or 4-11 City of Manhattan Beach
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CRITERIA
4-12 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan higher factors if specific conditions require it. A typical Sub-Area Sewer Master Plan Report shall include, but not be limited to the following:
Map showing project boundaries and drainage areas
Detailed land use description and map
Average dry weather, peak dry weather, and peak wet weather flow calculations Exhibit showing all proposed sewer facilities and connections to the downstream regional system Phasing of development and wastewater flows
Hydraulic calculations for phased and fully developed ultimate conditions, from the development to the regional system, meeting all sewer design criteria
City of Manhattan Beach SSMP
164
Appendix 5 – Wastewater Master Plan – Section 6, Existing Pump Stations
6-1 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan SECTION 6
EXISTING PUMP STATIONS
6-1 GENERAL DESCRIPTION
The City of Manhattan Beach owns a nd operates eight (8) pump stations to lift wastewater from the lower lying areas to the local or the regional gravity systems. Table 6-1 provides general information on each pump station and Figure 6-1 shows the locations of the pump stations and their associated tributary areas and force mains. Description and planning level evaluation of each pump station are included in this section.
6-2 BELL AVENUE PUMP STATION
Location and Tributary Area
Bell Avenue Pump Station is a wet well-dry well type fa cility located on the east side of Bell Avenue between 31st Street and 31st Place. Access to the pump station, shown on Photograph 6-1, is through an access hatch above the dry well. The pump station was originally c onstructed in 1938. It was improved to its current condition in 1997.
Bell Avenue Pump Station serves a 78 acre tributary area consisting mostly of low density residential land use, with a small number of high density residential and public recreation areas. The tributary area, shown on Figure 6-2, is generally located bet ween 27th Street and Rosecrans Avenu e, east of Grandview Avenue and west of Agnes Road. The tributary land use categories are shown in Table 6-2.
Photograph 6-1 Bell Avenue Pump Station Access
6-2
City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan
Wastewater Master Plan
Table 6-1
Pump Stations
Motor Specifications
Pump Station Location
Date of
Cons.
Plan
No.
Area
Served
(Acres)
Force
Main
Dia
(in)
Force
Main
Length
(ft)
Force
Main
Material Type
Wet Well
Dimensions
Generator
Set
Number
of
Pumps
Pump
Mfg Pump Type
Pump
Model
Estimated
Flow
Capacity
(gpm) RPM Phase HP
ADWF
(gpm)
PDWF
(gpm)
PWWF
(gpm)
Bell Av enue Bell Ave between 31st St
and 31st Pl 1938
S-60
S-150
S-230
78 6 900 CIP Wetwell/
Drywell 12' x 9.5' x ~7' Diesel
Fueled 2 Flygt submersible, non-clog CT3102 263 1750 3 5 70 198 278 Palm Av enue Palm Av e south of
Rosecrans Av e 1953 S-149
S-230 39 6 775 CIP Wetwell/
Drywell 10' x 4' x ~11.5' Diesel
Fueled 2 Flygt submersible, non-clog CT3127 174 1740 3 10 38 114 159 Pacific Av enue Pacific Av e south of 31st
St 1953 S-149 103 6 1,225 CIP Wetwell/
Drywell 10' x 4' x ~11.5' Diesel
Fueled 2 Flygt submersible, non-clog CT3127 304 1740 3 10 98 269 376 Poinsettia Avenue Poinsettia Ave south of
Manhattan Beach Blvd 1949 S-227
S-145 25 4 163 CIP Wetwell/
Drywell 18.6 ft
2 x 6'-10" Diesel
Fueled 2 Flygt submersible, non-clog CT3102 136 NA 3 NA 19 60 85 Meadows Avenue Meadows Ave south of
9th St 1953 S-148
S-230 99 6 730 CIP Wetwell/
Drywell 10' x 4' x ~11.5' Diesel
Fueled 2 Flygt submersible, non-clog CT3127 304 1740 3 10 77 216 303 Voorhees Avenue Voorhees Ave at Rowell
Av e 1953 S-148
S-230 103 6 1,321 CIP Wetwell/
Drywell 10' x 4' x ~11.5' Diesel
Fueled 2 Flygt submersible, non-clog CT3127 227 1740 3 10 90 250 350 Civic Center Highland Ave south of
15th St 1992 - Civic Center
Bulding - - - Submersible - - 2 - - - - - - - - - -
Pier End of Manhattan Beach
Pier 1992 - Pier
Restaurant 4 - CIP Submersible 4' x 4' x 4' - 2 - submersible - - - - 3 - - - General Pump Station Information Pump Specifications Estimated Flows !(
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#*
#*
#*
#*
#* #*
#*
#*
#*
#*
City of El Segundo
City of
Hawthorne
City of
Redondo
Beach
City of Hermosa
Beach
Pacific Ocean
Pier PS
Civic
Center PS
LACSD PS
Palm
Ave PS
Pacific
Ave PS
Poinsetta
Ave PS
Meadows
Ave PS
Voorhees
Ave PS
Bell
Ave PS
9TH ST
8TH ST
11TH ST
OCEAN DR
2ND ST
10TH ST
6TH ST
THE STRAND
VALLEY DR
HIGHLAND AVE
ROSECRANS AVE
AVIATION BLVD
MARINE AVE
SEPULVEDA BLVD
PACIFIC AVE
27TH ST
PECK AVE
35TH ST
ARDMORE AVE
MEADOWS AVE
19TH ST
ROWELL AVE
OAK AVE
ELM AVE
HERRIN ST
31ST ST
5TH ST
23RD ST
POINSETTIA AVE
3RD ST
MANHATTAN BEACH BLVD
VISTA DR
HARKNESS ST
21ST ST
ALMA AVE
15TH ST
CREST DR
18TH ST
ARTESIA BLVD
1ST ST
17TH ST
36TH ST
35TH PL
36TH PL
DIANTHUS ST
30TH ST
31ST PL
29TH ST
33RD PL
24TH ST
BLANCHE RD
4TH ST
WALNUT AVE
7TH ST
26TH ST
PINE AVE
20TH PL
MAPLE AVE
MANHATTAN AVE
LAUREL AVE
GATES AVE
CEDAR WAY
28TH ST
BAYVIEW DR
34TH ST
JOHN PL
CURTIS AVE
WENDY WY
32ND ST
JOHNSON ST
MAGNOLIA AVE
PARKVIEW AVE
NELSON AVE
33RD ST
12TH ST
11TH PL
MANZANITA LN
RUHLAND AVE
MATHEWS AVE
PACIFIC PL
DUNCAN PL
FAYMONT AVE
13TH ST
CARLOTTA WAY
LYNNGROVE DR
VOORHEES AVE
3RD PL
PALM AVE
4TH PL
JOHN ST
DUNCAN AVE
KUHN DR
KEATS ST
5TH PL
16TH ST
BELL AVE
25TH ST
6TH PL
BOUNDARY PL
MAGNOLIA WAY
HIGHVIEW AVE
14TH ST
HERRIN AVE
18TH PL
7TH PL
LARSSON ST
2ND PL
VILLAGE CIR
CEDAR AVE
8TH PL
21ST PL
41ST ST
38TH ST
1ST PL
44TH ST
TENNYSON ST
ANDERSON ST
9TH PL
FAIRWAY DR
MANOR DR
AGNES RD
23RD PL
22ND ST
REDONDO AVE
RONDA DR
20TH ST
AVIATION WY
14TH PL
HOMER ST
27TH PL
SAUSALITO CIR
12TH CT
MARINE PL
26TH PL
PARK PL
MORNINGSIDE DR
GATEWAY DR
FRANCISCO ST
SEAVIEW ST
AVIATION PL
EL PORTO ST
10TH PL
VILLAGE DR
12TH PL
ARDMORE WY
CENTER PL
25TH PL
VILLA ESCUELA
HALEY WY
27TH WAY
CATALINA CT
INGLESIDE DR
BERMUDA CT
MARIN CT
36TH ST
30TH ST
6TH ST
WALNUT AVE
2ND PL
23RD ST
POINSETTIA AVE
14TH ST
33RD PL
JOHN ST
14TH ST
ELM AVE
3RD ST
OAK AVE
GATES AVE
21ST ST
12TH ST
17TH ST
VOORHEES AVE
33RD ST
19TH ST
PECK AVE 18TH ST
15TH ST
12TH ST
REDONDO AVE
36TH PL
PALM AVE
1ST ST
AGNES RD
30TH ST
BELL AVE
21ST PL
5TH ST
23RD ST
18TH ST
28TH ST
26TH ST
15TH ST
18TH ST
17TH ST
5TH ST
LAUREL AVE
4TH PL
19TH PL
6TH PL
15TH PL
16TH PL
17TH PL
2ND PL
8TH PL
40TH ST
45TH ST
39TH ST
43RD ST
42ND ST
PROSPECT AVE
38TH PL
KELP ST
GULL ST
CHESTNUT AVE
CHESTNUT AVE
CHABELA DR
SHELLEY ST
SHELL ST
34TH PL
34TH PL
34TH PL
34TH PL
MARINE PL
MARINE PL
26TH PL
30TH PL
30TH PL
30TH PL
30TH PL
32ND PL
32ND PL
32ND PL
32ND PL
MORNINGSIDE DR
WESTPORT
LONGFELLOW DR
LONGFELLOW DR
29TH PL
29TH PL
29TH PL
29TH PL
FLOURNOY RD
FLOURNOY RD
28TH PL
28TH PL
28TH PL
28TH PL
VILLAGE CENTER DR
MARKET PL
10TH PL
10TH PL
10TH PL
PARK WY
FISHER AVE
DUNCAN DR
MOONSTONE ST
ALTURA WY
CHATHAM
GRANDVIEW AVE
GRANDVIEW AVE
GRANDVIEW AVE
BRIDGEPORT
24TH PL
24TH PL
24TH PL
24TH PL
ROSECRANS PL
MALAGA WY
RAILROAD PL
CARRIAGE PL
EVERGREEN LN
11TH Pl
DEEGAN PL
LAUREL SQ
31ST WAY
13TH PL
13TH PL
12TH PL
25TH PL
TERRAZA PL
CHURCH ST
CAMBRIDGE
CAMINO CARDINELL
DOVER PL
MALAGA PLE
MALAGA PLW
ARBO LADO CT
HOMER PL
HOMER PL
INGLESIDE DR
STRATFORD LAGUNA CT
BRYANT PL
CORONADO CT
CAYMAN CT
PACIFIC Pl
GRENADA CTSANTA CRUZ CT
MONTEREY CT
NANTUCKET PL
TIBURON CT
SANTA ROSA CT
PORTSMOUTH WY
CORDOBA CT
SAN MIGUEL CTLAFAYETTE CT
1ST PL
17TH ST
1ST PL
PINE AVE
13TH ST
5TH ST
BAYVIEW DR
7TH PL
29TH ST
HOMER ST
5TH PL
33RD ST
33RD PL
33RD PL
14TH ST
12TH PL
3RD PL
27TH PL
12TH ST
MARINE PL
8TH PL
PACIFIC PL
MARINE AVE
22ND ST
18TH ST
35TH PL
CREST DR
4TH PL
19TH ST
1ST PL
2ND PL
36TH PL
23RD ST
1ST ST
7TH PL
9TH PL
11TH ST
VISTA DR
35TH PL
MANHATTAN AVE
36TH PL
9TH ST
8TH ST
20TH ST
2ND ST
23RD PL
25TH PL
CREST DR
12TH ST
27TH ST
3RD ST
PINE AVE
10TH ST
CURTIS AVE
35TH ST
BAYVIEW DR
11TH PL
31ST PL
CREST DR
CREST DR
11TH PL
MARINE PL
25TH STBAYVIEW DR
CENTER PL
6TH ST
BELL AVE
23RD PL
3RD ST
31ST ST
35TH PL
23RD PL
1ST PL
18TH ST
9TH PL
1ST ST
3RD PL
21ST ST
3RD ST
31ST PL
33RD PL
36TH PL
31ST PL
35TH PL
14TH ST
33RD ST
31ST PL
5TH PL
6TH PL
23RD PL
³
0 1,200 2,400600
Feet
1" = 1,200'
Legend
#*
#*
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Bell Pump Station Tributary Area
Meadows Pump Station Tributary Area
Pacific Pump Station Tributary Area
Palm Pump Station Tributary Area
Poinsettia Pump Station Tributary Area
Voorhees Pump Station Tributary Area
PROJECT NO: 1640901.10
DATE: September 2009
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Pump Station
Tributary Areas
Figure 6-1
#*
#*
#*
#*
#*
#*
#*
#*
#*#
Bell
Ave PS
6" CIP Forcemain
Pacific Avenue Pump Station
VISTA DR
OCEAN DR
ALMA AVE
CREST DR
31ST ST
35TH ST
23RD ST
ROSECRANS AVE
THE STRAND
33RD ST
27TH ST
36TH ST
35TH PL
36TH PL
31ST PL
HIGHLAND AVE
30TH ST
33RD PL
29TH ST
BLANCHE RD
24TH ST
MARINE AVE
26TH ST
LAUREL AVE
MANHATTAN AVE
FLOURNOY RD
VALLEY DR
BAYVIEW DR
28TH ST
34TH ST
AGNES RD
32ND ST
19TH ST
BELL AVE
ARDMORE AVE
25TH ST
21ST ST
21ST PL
38TH ST
23RD PL
27TH PL
MARINE PL
26TH PL
30TH PL
32ND PL
39TH ST
29TH PL
28TH PL
GRANDVIEW AVE
24TH PL
ARDMORE WY
25TH PL
31ST ST
27TH PL
36TH PL
26TH PL
LAUREL AVE
33RD ST
35TH PL
MARINE PL
35TH PL
35TH ST
24TH PL
BELL AVE
36TH PL
25TH ST
26TH ST
36TH PL
BELL AVE
21ST PL
31ST PL
FLOURNOY RD
23RD PL
23RD PL
PROJECT NO: 1640901.10
DATE: September 2009
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Bell Ave Pump Station
Tributary Area
Figure 6-2
³
0 250 500125
Feet
1" = 500'
Legend
Landuse
#*
#*
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Bell Avenue Pump Station Tributary Area
!(
Low Density Residential
Medium Density Residential
High Density Residential
Downtown Commercial
Local Commercial
General Commercial
North End Commercial
Manhattan Village
Mixed-Use Commercial
Industrial
Parks / Open Space
Public Facilities
EXISTING PUMP STATIONS
6-5 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Table 6-2
Bell Avenue Pump Station Tributary Land Uses
Influent Sewer
The wastewater generated within the tributary
area is conveyed to the pump station wet well by
two gravity sewers. A 10-inch sewer on Bell
Avenue brings flows from the south and an 8-inch
sewer on Bell Avenue conveys flows from the
north. They then confluence into one 10-inch
sewer that enters the wet well from the east with
an invert elevation of 53.80 feet.
Wet Well
The existing wet well (Photograph 6-2) is a 12’-0”
long and 9’-6” feet wide rectangular unlined
reinforced concrete structure, located directly south
of the dry well. Access to the wet well is through a
17” x 24” square hatch at ground level.
The bottom elevation of the wet well is 51.44 feet
amsl. A fillet starting at elevation 52.53 feet amsl
along the southerly wall slopes to elevation 51.44
feet amsl towards the northerly wall over 9 feet. 6-
inch pump suction pipes exit the wet well with an
invert elevation of 51.91 feet amsl and extend about
20 inches north where they enter the dry well.
Significant exposed aggregate indicates concrete
corrosion due to hydrogen sulfide generated by the wastewater. A basket is located below the influent pipe at the wet well to intercept rags and other debris/non-disp ersible material. City maintenance crews visit the pump station twice a week (Monday & Friday) to clean out the debris from the basket.
The wet well has 512 gallons of operational storage bet ween the pump start and stop levels, which indicates maximum cycling of 7 to 8 times per hour. Since the pum p start level is the same as the influent sewer invert elevation, Bell Avenue Pump Station has no emergency storage.
Dry Well
The dry well is a 9’-0” long and 9’-6” wide rectangular reinforced concrete structure located north of the wet well. Its top slab is at elevation 65.80 feet amsl. T he bottom elevation of the dry well is at 51.03 feet amsl.
The pumps are located 2’-6” and 5’-4” from the easterly wall. The floor slopes towards the southwest corner of the dry well where a sump pump is located. The sump pump conveys any leakage and wash water back to the wet well through a 1-¼” discharge pipe. Access to the dry well is through a 5’-0” x 2’-6” rectangular hatch at ground level and stairs.
Photograph 6-2 Bell Avenue Pump Station Wet Well
Land Use Description
Number of
Parcels
Total Area
(ac)
Low Density Residential 487 56.7
Medium Density Residential 16 1.3
High Density Residential 3 0.3
Parks / Open Space 1 5.2
Public Facilities 3 14.7
Total 510 78.2
EXISTING PUMP STATIONS
6-6 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Suction Piping
The suction pipes extend through the wet well wall, and connect to 6-inch isolation pinch valves in the dry well. Then they connect to a spool and a 6” x 4”
reducer before terminating at the suction elbow of
the pumps.
Discharge Piping
The discharge piping for each pump starts at the
discharge nozzle with a 6” x 4” flanged 90 degree
reducing bend and a 6-inch swing check valve in
the vertical run, followed by a 6-inch isolation
pinch valve, a spool extending up with a flexible
coupling, and a 6-inch 90 degree elbow that
connects to the 6-inch discharge header. The
discharge header (Photograph 6-3) exits the dry
well through the easterly wall toward Bell Avenue.
Forcemain
The forcemain is a 6-inch cast iron pipe. It convey s the sewage from an avera ge wet well elevation of 52.68 feet amsl to a discharge elevat ion of 68.00 feet amsl. The forcemain turns south on Bell Avenue and discharges to a City sewer manhole at the intersection of Bell Avenue and 27 th Street. The downstream sewer is an 8-inch VCP extending further south on Bell Avenue. The total length of the forcemain is about 900 feet. It was constructed in 1938.
Based on the existing pump capacity of 263 gpm, the forcemain velocity is 3.0 fps, which is within the recommended velocity range of 3 to 5 fps.
Pumps
Bell Avenue Pump Station has two (2) FLYGT
wastewater pumps (Model CT3102) with non-clog
impellers. One of the pumps is shown on
Photograph 6-4. The pump s are driven by 5 HP
motors.
The existing pump capacity based on SCADA
information from April 6, 2009 is approximately 263
gpm. The pumps start 4 to 6 times per hour during
morning peak hours (5:00 am – 9:00 am).
Photograph 6-4 Bell Avenue Pump Station Pumps
Photograph 6-3 Bell Avenue Pump Station Discharge Header
EXISTING PUMP STATIONS
6-7 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Electrical and Controls
The Bell Avenue Pump Station is powered by a
100 amp, 460 volt, 3 phase, 3 wire service. The
pump station operation is controlled by the wet
well water level, which is determined by an
ultrasonic level sensor. The pumps alternate and
start when the level rises to about 2.4 feet above
the wet well floor and stop when the level drops to
about 1.8 feet above the wet well floor.
Tributary Flows
The average dry weather flow calculated by land
use and unit flow factors is 70 gpm. The
associated peak dry w eather flow and peak wet
weather flow are 198 gpm and 278 gpm, respectively. The peak dry weather flow based on the April 6, 2009 SCADA information is approximately 160 gpm.
Recommendations
The existing pump capacity is approximately 265 gpm, based upon SCADA data and wet well dimensions.
Therefore, the firm pumping capacity is somewhat lo wer than the estimated peak wet weather flow of 278 gpm. Because the pump station has no emergency storage, the existing pumps should be replaced with 300 gpm capacity pumps.
Emergency storage of 8,400 gallons, as well as operating volume of 1,150 gallons should be provided. This may require the construction of a new station with a lowe r bottom elevation, and inco rporation of the existing structure into emergency storage, which would provide approximately 3,400 gallons.
The forcemain should be replaced with a new 6-inch pipe when the pump station is improved.
6-3 PALM AVENUE PUMP STATION
Location and Tributary Area
Palm Avenue Pump Station is a wet well-dry well
facility located at 3529 Palm Avenue south of
Rosecrans Avenue. Access to the pump station,
shown on Photograph 6-6, is through a hatch
above the dry well, on the westerly sidewalk of
Palm Avenue. The pump station was originally
constructed in 1953. It was improved to its current
condition in 1997.
Palm Avenue Pump Station serves a 39 acre
tributary area consisting of low density residential
and general commercial land uses. The tributary
Photograph 6-6 Palm Avenue Pump Station Access
Photograph 6-5 Bell Avenue Pump Station Control Panel
EXISTING PUMP STATIONS
6-8 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan area is illustrated on Figure 6-3. The tributary land use categories are shown in Table 6-3.
Table 6-3 Influent Sewer
Palm Avenue Pump Station Tributary Land Uses
The wastewater generated within the tributary
area is conveyed to the pump station wet well by
two 8-inch gravity sewers, one from the south, and
another from the north. They confluence at a
manhole just east of the pump station, and enter
the wet well as 10-inch sewer with an invert
elevation of 81.90 feet amsl.
Wet Well
The existing wet well (Photograph 6-7) is a 10’-0”
long and 4’-0” wide rectangular unlined reinforced
concrete structure, located directly east of the dry
well. Access to the wet well is through a 30-inch
diameter manhole on Palm Avenue at street level.
The bottom elevation of the wet well is 78.10 feet
amsl at the westerly wall. Two 6-inch suction pipes
extend through the wet well wall into the dry well
with invert elevations of 78.10 feet amsl.
Significant exposed aggregate indicates concrete
corrosion due to hydrogen sulfide generated by the
wastewater. There is a basket at the terminus of
the influent pipe to intercept rags and other debris/non-di spersible material. City maintenance crew visits the pump station twice a week (Monday & Friday) to clean out the rags from the basket.
The wet well has 226 gallons of operational storage between the pump start level (2.66 ft above wet well floor) and stop level (1.91 ft above wet well floor). Em ergency storage available is 344 gallons. Currently wet well has only 2.1 minutes of emergency storage during peak wet weather flow of 159 gpm.
Dry Well
The dry well is a 10’-6” long and 10’-0” wide rectangular reinforced concrete structure located to the west of the wet well. Its top slab is at elev ation 90.62 feet amsl. The bottom elevat ion of the dry well is at 76.97 feet amsl. The pumps are located 3’-0” and 7’-0” from the southerly wall. The floor slopes towards the middle of the easterly wall of the dry well where the sump pump is located. The sump pump conveys any leakage and wash water back to the wet well through a 1- ¼” discharge pipe. Access to the dry well is through a 30” x 60” rectangular hatch, located at ground level on the wester ly sidewalk of Palm Avenue. A ladder leads down to each of the two levels of the dry well.
Land Use Description
Number of
Parcels
Total Area
(ac)
Low Density Residential 335 38.2
General Commercial 2 1.2
Total 337 39.4
Photograph 6-7 Palm Avenue Pump Station Wet Well
#*
#*
#*
#*
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Ave PS
Palm
Ave PS
6" CIP Forcemain
6" CIP
Forcemain27TH ST
35TH ST
31ST ST
VALLEY DR
ROSECRANS AVE
PALM AVE
PACIFIC AVE
MAPLE AVE
LAUREL AVE
ARDMORE AVE
FLOURNOY RD
35TH PL
36TH ST
30TH ST
29TH ST
26TH ST
33RD ST
MARINE AVE
AGNES RD
31ST PL
36TH PL
33RD PL
SEPULVEDA BLVD
PINE AVE
WALNUT AVE
POINSETTIA AVE
25TH ST
ELM AVE
OAK AVE
23RD ST
28TH ST
JOHN ST PALM AVE
PINE AVE
LAUREL AVE
30TH ST
MARINE AVE
WALNUT AVE
ELM AVE
33RD ST
POINSETTIA AVE
OAK AVE
PROJECT NO: 1640901.10
DATE: September 2009
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Palm Ave Pump Station
Tributary Area
Figure 6-3
³
0 200 400100
Feet
1" = 400'
Legend
Landuse
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Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Palm Avenue Pump Station Tributary Area
!(
Low Density Residential
Medium Density Residential
High Density Residential
Downtown Commercial
Local Commercial
General Commercial
North End Commercial
Manhattan Village
Mixed-Use Commercial
Industrial
Parks / Open Space
Public Facilities
EXISTING PUMP STATIONS
6-10 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Suction Piping
The suction pipes start at the wet well bottom,
extend through the wet well wall and connect to
6-inch isolation pinch valves. Then they connect
to a spool before terminating at the suction elbow
of the pump.
Discharge Piping
The discharge piping for each pump starts at the
discharge nozzle with a 6-inch flanged 90 degree
bend and a 6-inch swing check valve in the
vertical run, followed by a 6-inch isolation pinch
valve, a spool extending up, a flexible coupling,
and a 6-inch 90 degree elbow that connects to
the 6-inch discharge header. The discharge
header (Photograph 6-8) exits the dry well
through the southerly wall.
Forcemain
The forcemain is a 6-inch cast iron pipe. It convey s the sewage from an avera ge wet well elevation of 79.02 feet amsl to a discharge elevation of 118.42 feet amsl. The forcemain exits the dry well through the southerly wall of the pump station, follows Palm Avenue south and discharges to a City sewer manhole on Palm Avenue, north of 31st Street. The total length of the forcemain is 775 feet. It was constructed in 1953.
Based on the existing pump capacity of 174 gpm, the forc emain velocity is 2.0 fps, which is less than the recommended velocity range of 3 to 5 fps.
Pumps
Palm Avenue Pump Station has two (2) FLYGT
wastewater pumps (Model CT3127) with non-clog
impellers. They are driven by 10 HP motors. The
existing pump capacities are 167 gpm and 181
gpm, based on SCADA information from April 6,
2009. The existing firm capacity of 167 gpm is
greater than the estimated peak wet weather flow
of 159 gpm. The pumps start 5 to 8 times per hour
during morning peak hours (5:00 am – 9:00 am).
Electrical and Controls
The Palm Avenue Pump Station is powered by a
100 amp, 460 volt, 3 phase, 3 wire service. The
pump station operation is controlled by the wet well
Photograph 6-9 Palm Avenue Pump Station Control Panel
Photograph 6-8 Palm Avenue Pump Station Discharge Header
EXISTING PUMP STATIONS
6-11 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan water level, which is determined by an ultrasonic
level sensor. The pumps alternate and start
when the level rises to about 2.6 to 2.8 feet
above the wet well floor and stop when the level
drops to about 1.8 to 2.1 feet above the wet well
floor.
A 25 kVA diesel generator (Photograph 6-10) is
located at the bottom level of the dry well
adjacent the pumps.
Tributary Flows
The average dry weather flow calculated by land
use and unit flow factors is 38 gpm. The
associated peak dry weather and peak wet
weather flows are 114 gpm and 159 gpm, respec
SCADA information is approximately 83 gpm.
Recommendations
tively. The peak dry weather flow based on the April 6, 2009
The existing firm capacity of 167 gpm is greater th an the estimated peak wet weather flow of 159 gpm.
Therefore, Palm Avenue Pump Station has adequate pumping capacity.
Emergency storage of 4,800 gallons, as well as operati ng volume of 700 gallons should be provided. This may require the construction of a new station with a lowe r bottom elevation, and inco rporation of the existing structure into emergency storage, which would provide approximately 3,200 gallons.
The forcemain should be replaced with a new 4-inch pipe when the pump station is improved.
6-4 PACIFIC AVENUE PUMP STATION
Location and Tributary Area
Pacific Avenue Pump Station is a wet well-dry
well type facility located on Pacific Avenue
south of 31
st Street. Access to the pump
station, shown on Photograph 6-11, is through a
access hatch above the dry well on the westerly
sidewalk of Pacific Avenue. It was constructed
in 1953, and retrofitted in 1997.
Pacific Avenue Pump Station serves a 103 acre
tributary area consisting of low density
residential, medium density residential and
general commercial land uses. The tributary
area is shown on Figure 6-4. The tributary land use categories are shown in Table 6-4.
Photograph 6-10 Palm Avenue Pump Station Generator
Photograph 6-11 Pacific Avenue Pump Station Access
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Bell
Ave PS
6" CIP Forcemain
Pacific
Ave PS
Palm
Ave PS
6" CIP Forcemain
6" CIP
Forcemain27TH ST
35TH ST
VALLEY DR
31ST ST
19TH ST
PACIFIC AVE
ARDMORE AVE
33RD ST
36TH ST
35TH PL
36TH PL
31ST PL
30TH ST
33RD PL
29TH ST
BLANCHE RD
PALM AVE26TH ST
MAPLE AVE
SEPULVEDA BLVD
MARINE AVE
LAUREL AVE
FLOURNOY RD
23RD ST
AGNES RD
PINE AVE
24TH ST
21ST ST
WALNUT AVE
BELL AVE
POINSETTIA AVE
JOHN ST
25TH ST
ELM AVE
21ST PL
23RD PL
OAK AVE
VISTA DR
28TH ST
GRANDVIEW AVE
ARDMORE WY
33RD ST
LAUREL AVE
MARINE AVE
AGNES RD
FLOURNOY RD
21ST PL
36TH PL
PINE AVE
WALNUT AVE
PALM AVE
30TH ST
BELL AVE
26TH ST
BELL AVE
23RD ST
PINE AVE
POINSETTIA AVE
ELM AVE
OAK AVE
PROJECT NO: 1640901.10
DATE: September 2009
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Pacific Ave Pump Station
Tributary Area
Figure 6-4
³
0 250 500125
Feet
1" = 500'
Legend
Landuse
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Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Pacific Avenue Pump Station Tributary Area
!(
Low Density Residential
Medium Density Residential
High Density Residential
Downtown Commercial
Local Commercial
General Commercial
North End Commercial
Manhattan Village
Mixed-Use Commercial
Industrial
Parks / Open Space
Public Facilities
EXISTING PUMP STATIONS
6-13 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Table 6-4 Influent Sewer
Pacific Avenue Pump Station Tributary Land Uses
The wastewater generated within the tributary area
is conveyed to the pump station wet well by two 8-
inch gravity sewers on Pacific Avenue, one from the
south and another from the north. The two sewers
confluence at a manhole east of the wet well, and a
10-inch sewer enters the wet well with an invert
elevation of 79.66 feet amsl.
Wet Well
The existing wet well (Photograph 6-12) is a 10’-0”
long and 4’-0” wide rectangular unlined reinforced
concrete structure, locat ed directly east of the dry
well. Access to the wet well is through a 30-inch
diameter manhole on Pacific Avenue at street
level.
The bottom elevation of the wet well is 73.85 feet
amsl at the westerly wall. Two pump suction
pipes, 6-inch in diameter, exit the wet well with an
invert elevation of 73.85 feet amsl and extend into
the dry well.
The wet well has 305 gallons of operational
storage between the pump start and stop levels.
Pumps cycled 8 to times per hour during the peak flow period of 6:00 am and 8:00 am on April 6, 2009.
Dry Well
The dry well is a 10’-6” long and 10’-0” wide rectangular reinforced concrete structure located to the west of the wet well. Its top slab is at elev ation 86.37 feet amsl. The bottom elevat ion of the dry well is at 72.72 feet amsl. The pumps are located 3’-0” and 7’-0” from the southerly wall. The floor slopes towards the middle of the eastern wall of the dry well where the sump pump is located. The sump pump conveys any leakage and wash water back to the wet well through a 1-¼” discharge pipe. Access to the dry well is through a 30” x 60” rectangular hatch, located at ground level on the westerly sidewalk of Pacific Avenue. A ladder leads down to each of the two levels of the dry.
Suction Piping
The suction pipes start at the wet well, extend through t he wet well wall and connect to 6-inch isolation pinch valves in the dry well. Then they connect to a spool before terminating at the suction elbow of the pumps.
Photograph 6-12 Pacific Avenue Pump Station Wet Well
Land Use Description
Number of
Parcels
Total Area
(ac)
Low Density Residential 880 99.4
Medium Density Residential 1 1.0
General Commercial 3 2.8
Total 884 103.2
EXISTING PUMP STATIONS
6-14 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Discharge Piping
The discharge piping for each pump starts at the
discharge nozzle with a 6-inch flanged 90 degree
bend and a 6-inch swing check valve in the
vertical run, followed by a 6-inch isolation pinch
valve, a spool extending up, a flexible coupling,
and a 6-inch 90 degree elbow that connects to the
6-inch discharge header. The discharge header
(Photograph 6-13) exits the dry well through the
southerly wall.
Forcemain
The forcemain is a 6-inch diameter cast iron pipe.
It conveys the sewage from an average wet well
elevation of 76.78 feet amsl to discharge elevation
of 109.23 feet amsl. The forcemain follows Paci fic Avenue south for 200 feet, then turns east on 27 Street, and di
scharges to a City manhole at the intersection of 27 th Street and Ardmore Avenue. The total length of the forcemain is 1225 feet. It was constructed in 1953.
Based on the existing average pump capacity of 304 gpm, the forcemain velocity is 3.4 fps, which is within the recommended velocity range of 3 to 5 fps.
th
Pumps
Pacific Avenue Pump Station ha s two (2
pumps (Model CT3127) with “non-clog” im
pumps is shown on Photograph 6-14. The pum
10 HP motors. The existing pump capa
317 gpm, based on SCADA information
Electrical and Controls
) FLYGT wastewater
pellers. One of the
ps are driven by
cities are 291 gpm and
from April 6, 2009.
The Pacific Avenue Pump Station is po
volt, 3 phase, 3 wire service. The pump
controlled by the wet well water leve l, whic
ultrasonic level sensor. Per SCADA informatio
alternate and start when the level rise
the wet well floor and stop when the level d
above the wet well floor.
A diesel fuel generator is located at t
well.
wered by a 100 amp, 460
station operation is
h is determined by an
n, the pumps
s to about 3.3 feet above
rops to about 2.1 feet
he bottom level of the dry
Photograph 6-13 Pacific Avenue Pump Station Discharge Header Photograph 6-14 Pacific Avenue Pump
Station Pumps
EXISTING PUMP STATIONS
6-15 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Tributary Flows
The average dry weather flow calculated by land use and unit flow factors is 98 gpm. The associated peak dry weather and peak wet weather flows are 269 gpm and 376 gpm, respectively. The peak dry weather flow based on the April 6, 2009 SCADA information is approximately 251 gpm.
Recommendations
The existing pump capacities are approximately 291 gpm and 317 gpm, based upon SCADA data and wet well dimensions. The firm pumping capacity of 291 gpm is lower than the estimated peak wet weather flow of 376 gpm. The existing pumps should be replaced with 400 gpm capacity pumps.
Emergency storage of 12,000 gallons, as well as operating volume of 1,500 gallons should be provided. This may require the construction of a new station with a lowe r bottom elevation, and inco rporation of the existing structure into emergency storage, which would provide approximately 7,180 gallons.
The forcemain should be replaced with a new 6-inch pipe when the pump station is improved.
6-5 POINSETTIA AVENUE PUMP STATION
Location and Tributary Area
Poinsettia Avenue Pump Station is a wet well-dry well type facility located on Poinsettia Avenue south of Manhattan Beach Boulevard. Access to the pum p station, shown on Photograph 6-15, is through a hatch above the dry well, on the easterly sidewalk of Poinsettia Avenue. The pump station was originally constructed in 1949 and retrofitted in 1995.
Poinsettia Avenue Pump Station serves a 25 acre tributary area consisting of only low density residential land uses. The tributary area of the pump station is shown on Figure 6-5. The details of the tributary area land uses are shown in Table 6-5.
Table 6-5
Poinsettia Avenue Pump Station Tributary Land Uses
Land Use Description
Number of
Parcels
Total Area
(ac)
Low Density Residential 152 25.3
Total 152 25.3
Photograph 6-15 Poinsettia Avenue Pump
Station Access
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Forcemain
Poinsettia
Ave PS
9TH ST
11TH ST
8TH ST
10TH ST
JOHN ST
6TH ST
PACIFIC AVE
11TH PL
VALLEY DR
PACIFIC PL
12TH ST
POINSETTIA AVE
DIANTHUS ST
ARDMORE AVE
MANHATTAN BEACH BLVD
13TH ST
HIGHVIEW AVE
7TH PL
JOHN PL
7TH ST
8TH PL
6TH PL
12TH CT
9TH PL
ELM AVE
FISHER AVE
PINE AVE
LAUREL AVE
ANDERSON ST
14TH ST
RAILROAD PL
10TH PL
WALNUT AVE
11TH Pl
CENTER PL
ARBO LADO CT
CREST DR 6TH ST
8TH ST
9TH ST
10TH ST
6TH ST
PROJECT NO: 1640901.10
DATE: September 2009
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Poinsettia Ave Pump Station
Tributary Area
Figure 6-5
³
0 150 30075
Feet
1" = 300'
Legend
Landuse
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Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Poinsettia Avenue Pump Station Tributary Area
!(
Low Density Residential
Medium Density Residential
High Density Residential
Downtown Commercial
Local Commercial
General Commercial
North End Commercial
Manhattan Village
Mixed-Use Commercial
Industrial
Parks / Open Space
Public Facilities
EXISTING PUMP STATIONS
6-17 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Influent Sewer
A great majority of the wastewater generated within the tributary area is conveyed to the pump station by an 8-inch sewer on Poinsettia Avenue from the south. A 70 foot section of 8-inch sewer serves the parcels between the pump station and Manhattan Beach Boulevard. The two gravity sewers confluence at a manhole southwesterly of the pump station. The influent 8-in ch diameter sewer extends northeasterly, and enters the wet well from the west with an invert elevation of 93 feet amsl.
Wet Well
The pump station is an 11 foot diameter reinforced
concrete structure. The existing wet well
(Photograph 6-16) is a po rtion of the pump station
structure with cross sectio nal area of 18.6 square
feet. Access to the wet well is through a 24-inch
diameter cover located on the floor of the dry well
mezzanine level.
The bottom elevation of the wet well is 86.92 feet
amsl. Two 4-inch diameter suction start with 90
degree bends and short flanged spools through the
north wall of the wet well.
The wet well has 154 gallons of operational storage bet ween the pump start and stop levels, which indicates pump cycling of up to 13 per hour. The pumps cycled about 6 times per hour between 6 am and 9 am on April 6, 2009. The wet well has 394 gallons of emergency storage, which provides 4.7 minutes of storage during the estimated peak wet weather flow of 85 gpm.
Dry Well
The dry well has a mezzanine level, which houses most of the electrical equipment and the standby generator, and a bottom level which contains the pumps. The bottom elevation of the dry well is at 86.92 feet amsl.
Suction Piping
The suction pipes start at the wet well, extend through the wet well wall to 4-inch isolation pinch valves and a spool before terminating at the suction elbow of the pumps.
Discharge Piping
The discharge piping for each pump starts at the di scharge nozzle with a 4-inch flanged 90 degree elbow followed by a 4-inch check valve, a 4-inch isolation pinch valve, a spool and a 4-inch flanged 45 degree elbow. The piping for one pump then connects directly into a 4-inch tee that connects to the discharge header. The piping for the second pump requires another 4-inch spool before it connects into the tee.
Photograph 6-16 Poinsettia Avenue Pump Station Wet Well
EXISTING PUMP STATIONS
6-18 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Forcemain
The forcemain is a 4-inch diameter cast iron pipe. It conveys the sewage from an average wet well elevation of 89.92 feet amsl to a discharge elev ation of 111.83 feet amsl. The forcemain exits the dry well through the westerly wall of the pump station, follows Poinsettia Avenue north, and discharges to a City sewer manhole at the intersection of Poinsettia Avenue and Manhattan Beach Boulevard. The total length of the forcemain is about 163 feet. It was constructed in 1949.
Based on the existing pump capacity of 136 gpm, the forcemain velocity is 3.5 fps, which is within the recommended velocity range of 3 to 5 fps.
Pumps
Poinsettia Avenue Pump Station has two (2)
FLYGT wastewater pumps (Model CT3102) with
“non-clog” impellers. One of the pumps is shown
in Photograph 6-17. The pumps are driven by 5
HP motors. The existing pump capacity, based
on SCADA information from April 6, 2009, is
approximately 136 gpm. The pumps start and
stop 5 to 6 times per hour during morning peak
hours (6:00 am – 9:00 am).
Electrical and Controls
The Poinsettia Avenue Pump Station is powered
by a 100 amp, 460 volt, 3 phase, 3 wire service.
The pump station operation is controlled by the
wet well water level, which is determined by an
ultrasonic level sensor. Per SCADA information,
the pumps alternate and start when the level rises
to about 3.1 to 3.3 feet above the wet well floor
and stop when the level drops to about 1.9 to 2.2
feet above the wet well floor.
A diesel generator is located on the mezzanine
level of the pump station.
Tributary Flows
The average dry weather flow calculated by land
use and unit flow factors is 19 gpm. The
associated peak dry weather and peak wet
weather flows are 60 gpm and 85 gpm,
respectively. The peak dry weather flow based on
the April 6, 2009 SCADA information is
approximately 48 gpm.
Photograph 6-17 Poinsettia Avenue Pump Station Pumps
Photograph 6-18 Poinsettia Avenue Pump Station Control Panel
EXISTING PUMP STATIONS
6-19 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Recommendations
Poinsettia Avenue Pump Station has a very small operational wet well, which may result in the pumps cycling about 14 times per hour, which is excessive. The emergency storage capacity of 394 gallons is much less than that required by the criterion (2,600 gallons). Its location in the driveway of the adjacent school precludes construction of improvements needed to comple tely eliminate surface water leakage into the dry well. The electrical equipment is old, and does not m eet current standards. It has exceeded its useful life. It should be replaced with a new pump station. A new forcemain should be constructed at the same time.
6-6 MEADOWS AVENUE PUMP STATION
Location and Tributary Area
Meadows Avenue Pump Station is a wet well –
dry well type facility located on Meadows Avenue
south of 9
th Street. Access to the pump station,
shown on Photograph 6-19, is through a hatch
above the dry well, on the easterly sidewalk of
Meadows Avenue. The pump station was
originally constructed in 1953 and upgraded in
1997.
Meadows Avenue Pump Station serves a 99 acre
tributary area consisting of low density residential,
medium density residential, general commercial
and public facilities land uses. The tributary area
is shown on Figure 6-6. The tributary land use categories are shown in Table 6-6.
Table 6-6 Influent Sewer
Meadows Avenue Pump Station Tributary Land Uses
Wet Well
The wastewater generated within the tributary area
is conveyed to the pump station wet well by gravity
sewers. A 12-inch sewer on Meadows Avenue
conveys flows from the south and an 8-inch sewer
brings flows from the north. They then combine
into one 12-inch sewer that enters the wet well
from the west at an elevation of 103.90 ft.
The existing wet well (Photograph 6-20) is a 10’-0” long and 4’-0” wide rectangular unlined reinforced concrete structure, located directly west of the dry well. Access to the wet well is through a 30-inch diameter manhole on Meadows Avenue.
Photograph 6-19 Meadows Avenue Pump Station Access
Land Use Description
Number of
Parcels
Total Area
(ac)
Low Density Residential 492 93.2
Medium Density Residential 1 0.3
General Commercial 20 5.3
Public Facilities 1 0.3
Total 514 99.1
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Forcemain
Poinsettia
Ave PS
Meadows
Ave PS
Voorhees
Ave PS
6" CIP
Forcemain
8TH ST
9TH ST
2ND ST
6TH ST
11TH ST
10TH ST
MEADOWS AVE
ROWELL AVE
SEPULVEDA BLVD
DIANTHUS ST
POINSETTIA AVE
5TH ST
1ST ST
JOHNSON ST
MANHATTAN BEACH BLVD
3RD ST
KEATS ST
KUHN DR
DUNCAN PL
DUNCAN AVE
12TH ST
BOUNDARY PL
LARSSON ST
1ST PL
ANDERSON ST
RONDA DR
SHELLEY ST
ELM AVE
OAK AVE
PINE AVE
GATES AVE
CURTIS AVE
LONGFELLOW DR
PROSPECT AVE
WALNUT AVE
ALTURA WY
MAGNOLIA AVE
CHESTNUT AVE
VOORHEES AVE
12TH CT
TERRAZA PL
CAMINO CARDINELL
BRYANT PL
6TH ST
3RD ST
1ST ST
5TH ST
PROJECT NO: 1640901.10
DATE: September 2009
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Meadows Ave Pump Station
Tributary Area
Figure 6-6
³
0 250 500125
Feet
1" = 500'
Legend
Landuse
#*
#*
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Meadows Avenue Pump Station Tributary Area
!(
Low Density Residential
Medium Density Residential
High Density Residential
Downtown Commercial
Local Commercial
General Commercial
North End Commercial
Manhattan Village
Mixed-Use Commercial
Industrial
Parks / Open Space
Public Facilities
1"= 500'
EXISTING PUMP STATIONS
6-21 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan The bottom elevation of the wet well is 98.98 feet
amsl at the westerly wall. Two 6-inch pipes exit the
wet well with an invert of 98.98 feet amsl and
extend east into the dry well.
The wet well has 300 gallons of operational storage
between the pump start and stop levels, which
indicates that pumps may cycle up to 19 times per
hour. The wet well has 536 gallons of emergency
storage, which provides 1.8 minutes of wet weather
storage.
Dry Well
The dry well is a 10’-6” long and 10’-0” wide
rectangular reinforced concrete structure located to
the east of the wet well. Its top slab is at elevation 111.50 feet amsl. The bottom elevation of the dry wel
7’-0” from the northerly wall. The floor slopes toward sump pump is located. The sump pump conveys any leakage and wash water back to the wet well through a 1-¼” discharge pipe. Access to the dry well is throu gh a 30” x 60” rectangular hatch, located at ground level on the easterly sidewalk of Meadows Avenue. A ladder leads down to each of the two levels of the pump station.
Suction Piping
l is at 97.85 feet amsl. The pumps are located 3’-0” and s the middle of the westerly wall of the dry well where the
The suction pipes start at the wet well, extend through t he wet well wall and connect to 6-inch isolation pinch valves. Then they connect to 6” x 4” flanged reducers before terminating at the suction elbow of the pumps.
Discharge Piping
The discharge piping for each pump starts at the
discharge nozzle with a 6” x 4” flanged 90 degree
reducing bend and a 6-inch swing check valve in
the vertical run, followed by a 6-inch isolation
pinch valve, a spool extending up with a flexible
coupling, and a 6-inch flanged 90 degree elbow
that connects to the discharge header. The
discharge header (Photograph 6-21) exits the dry
well through the northerly wall.
Forcemain
The forcemain is a 6-inch cast iron pipe. It
conveys the sewage from an average wet well
elevation of 101.48 feet amsl to a discharge
elevation of 149.17 feet amsl. The forcemain
Photograph 6-20 Meadows Avenue Pump Station Wet Well
Photograph 6-21 Meadows Avenue Pump Station Discharge
Header
EXISTING PUMP STATIONS
6-22 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan exits the dry well through the northerly wall,
follows Meadows Avenue north and discharges to
a City sewer manhole at the intersection of
Meadows Avenue and 11 th Street. The total
length of the forcemain is about 730 feet. It was
constructed in 1953.
Pumps
Meadows Avenue Pump Station has two (2)
FLYGT wastewater pumps (Model CT3127) with
“non-clog” impellers. One of the pumps is shown
on Photograph 6-22. The pumps are driven by 10
HP motors. The existing pump capacity, based
on SCADA information from April 6, 2009, is
approximately 230 gpm. The pumps start 5 to 8
times per hour during morning peak hours (5:00
am – 9:00 am).
Electrical and Controls
The Meadows Avenue Pump Station is powered
by a 100 amp, 460 volt, 3 phase, 3 wire service.
The pump station operation is controlled by the
wet well water level, which is determined by an
ultrasonic level sensor. Per SCADA information,
the pumps alternate cycles and start when the
level rises to about 3.2 to 3.3 feet above the wet
well floor and stop when the level drops to about
2.2 to 2.3 feet above the wet well floor.
A diesel standby generator is located on the
bottom level of the pump station adjacent the
wastewater pumps.
Tributary Flows
The average dry weather flow calculated by land use and unit flow factors is 77 gpm. The associated peak dry weather and peak wet weather flows are 216 gpm and 303 gpm, respectively. The peak dry weather flow based on the April 6, 2009 SCADA information is approximately 145 gpm.
Recommendations
The existing pump capacities are approximately 291 gpm and 317 gpm, based upon SCADA data and wet well dimensions. The firm pumping capacity of 291 gpm is lower than the estimated peak wet weather flow of 376 gpm. The existing pumps should be replaced with 400 gpm capacity pumps.
Photograph 6-22 Meadows Avenue Pump Station Pumps
Photograph 6-23 Meadows Avenue Pump Station Control Panel
EXISTING PUMP STATIONS
6-23 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Emergency storage of 12,000 gallons, as well as operating volume of 1,500 gallons should be provided. This may require the construction of a new station with a lowe r bottom elevation, and inco rporation of the existing structure into emergency storage, which would provide approximately 7,180 gallons.
The forcemain should be replaced with a new 6-inch pipe when the pump station is improved.
6-7 VOORHEES AVENUE PUMP STATION
Location and Tributary Area
Voorhees Avenue Pump Station is a wet well-dry well type facility located adjacent to the intersection of Voorhees Avenue and Rowell Avenue. Access to the pump station is through a hatch above the drywell. The pump station was originally constructed in 1953 and retrofitted in 1997.
Voorhees Avenue Pump Station serves a 103 acre tributary area consisting of low density residential, high density residential, general commercial and public facilitie s land uses. The tributary area of the pump station is shown on Figure 6-7. The tributary land use categories are shown in Table 6-7.
Table 6-7
Voorhees Avenue Pump Station Tributary Area Influent Sewer The wastewater generated within the tributary area
is conveyed to the pump station wet well by gravity
sewers. An 8-inch sewer brings flows from the
north and another 8-inch sewer brings flows from
the south. They then combine into one 10-inch
sewer that enters the wet well from east at an
elevation of 113 feet amsl.
Wet Well
The existing wet well (Photograph 6-24) is a 10’-
0” long and 4’-0” wide rectangular unlined
reinforced concrete structure, located north of the
dry well. Access to the wet well is through a 30-
inch diameter manhole cover.
The bottom elevation of the wet well is 109.68
feet amsl. Two 6-inch suction pipes exit the wet
well with an invert of 109.68 feet amsl and extend
into the dry well.
The wet well has 300 gallons of operational
storage between the pump start and stop levels,
which indicates that the pumps may cycle up to
12 times per hour.
Land Use Description
Number of
Parcels
Total Area
(ac)
Low Density Residential 227 39.5
High Density Residential 6 3.8
General Commercial 14 11.2
Public Facilities 6 48.7
Total 253 103.2
Photograph 6-24 Voorhees Avenue Pump Station Wet Well
#*
#*
#*
#*
#*
#*
#*
#*
#*
#
City of Redondo
Beach
Voorhees
Ave PS
6" CIP Forcemain
2ND ST
PECK AVE
HERRIN ST
ARTESIA BLVD
MEADOWS AVE
SEPULVEDA BLVD
DUNCAN PL
KEATS ST
KUHN DR
DUNCAN AVE
1ST ST
BOUNDARY PL
1ST PL
ROWELL AVE
PROSPECT AVE
TENNYSON ST
DIANTHUS ST
GATES AVE
RONDA DR
CURTIS AVE
POINSETTIA AVE
CHABELA DR
NELSON AVESHELLEY ST
RUHLAND AVE
MATHEWS AVE
VOORHEES AVE
LONGFELLOW DR
ALTURA WY
TERRAZA PL
CURTIS AVE
1ST ST
GATES AVE
1ST ST
VOORHEES AVE
PROJECT NO: 1640901.10
DATE: September 2009
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Voorhees Ave Pump Station
Tributary Area
Figure 6-7
³
0 250 500125
Feet
1" = 500'
Legend
Landuse
#*
#*
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Voorhees Avenue Pump Station Tributary Area
!(
Low Density Residential
Medium Density Residential
High Density Residential
Downtown Commercial
Local Commercial
General Commercial
North End Commercial
Manhattan Village
Mixed-Use Commercial
Industrial
Parks / Open Space
Public Facilities
EXISTING PUMP STATIONS
6-25 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Dry Well
The dry well is a 10’-6” long and 10’-0” wide rectangular reinforced concrete structure located to the east of the wet well. Its top slab is at elevation 122.20 feet amsl. The bottom elevation of the dry well is at 108.55 feet amsl. The pumps are located 3’-0” and 7’-0” from the easterly wall. The floor slopes towards the middle of the northerly wall of the dry well where the sump pu mp is located. The sump pump conveys any leakage and wash water back to the wet well through a 1-¼” discharge pipe. Access to the dry well is through a 30” x 60” rectangular hatch, located at ground level. A ladder leads down to each of the two levels of the pump station.
Suction Piping
The suction pipes start at the wet well 2, extend
through the wet well wall and connect to 6-inch
isolation pinch valves. Then they connect to 6” x 4”
flanged reducers before terminating at the suction
elbow of the pumps.
Discharge Piping
The discharge piping for each pump starts at the
discharge nozzle with a 6” x 4” flanged 90 degree
reducing bend and a 6-inch swing check valve in
the vertical run, followed by a 6-inch isolation pinch valve, a spool extending up with a flexible coupling,
and a 6-inch flanged 90 degree elbow that connects
to the discharge header. The discharge header
(Photograph 6-25) exits the dry well through the easterly wall.
Forcemain
The forcemain is a 6-inch cast iron pipe. It conveys the sewage from an average wet well elevati on of 110.39 feet to discharge elevation of 153 feet amsl. The forcemain exits the dry well and follows the easement to the south and east towards Peck Avenue. It then turns north on Peck Avenue and discharges at a City manhole located at the intersection of Gates Avenue and Peck Avenue.
Based on the existing pump capacity of 227 gpm, the forcemain velocity is 2.1 fps, which is less than the recommended velocity range of 3 to 5 fps.
Pumps
Voorhees Avenue Pump Station has two (2) FLYGT
wastewater pumps (Model CT3127) with “non-clog” impellers.
One of the pumps is shown on Photograph 6-26. The pumps are driven by 10 HP motors. The existing pump capacity,
Photograph 6-25 Voorhees Avenue Pump Station Discharge Header
Photograph 6-26 Voorhees Avenue Pump
Station Pumps
EXISTING PUMP STATIONS
6-26 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan based on SCADA information from April 6, 2009, is approximately 227 gpm. The pumps start 6 to 8 times per hour during morning peak hours (5:00 am – 9:00 am).
Electrical and Controls
The Voorhees Avenue Pump Station is powered by a 100 amp, 460 volt, 3 phase, 3 wire service. The pump station operation is controlled by the wet well water leve l, which is determined by an ultrasonic level sensor.
Per SCADA information, the pumps alternate and start when the level rises to about 2.6 to 2.7 feet above the wet well floor and stop when the level drops to about 1.6 to 1.7 feet above the wet well floor.
A diesel standby generator is located on the bottom level of the pump station adjacent the wastewater pumps.
Tributary Flows
The average dry weather flow calculated by land use and unit flow factors is 90 gpm. The associated peak dry weather and peak wet weather flows are 250 gpm and 350 gpm, respectively. The peak dry weather flow based on the April 6, 2009 SCADA information is approximately 182 gpm.
Recommendations
The existing pump capacities are approximately 227 gp m. The firm pumping capacity is lower than the estimated peak wet weather flow of 350 gpm. The ex isting pumps should be replaced with 350 gpm capacity pumps.
Emergency storage of 10,500 gallons, as well as operating volume of 1,330 gallons should be provided. This may require the construction of a new station with a lowe r bottom elevation, and inco rporation of the existing structure into emergency storage, which would provide approximately 6,000 gallons.
The forcemain should be replaced with a new 6-inch pipe when the pump station is improved.
6-8 CIVIC CENTER PUMP STATION
The Civic Center Pump Station is a submersible
station which serves the Civic Center. It is
located in a utility room at the bottom level of the
Civic Center Building, as shown on Photograph
6-27. The wet well, pumps, and discharge piping
are shown on Photographs 6-28 and 6-29.
Record information for the facility could not be
located. However, the pump station appears to
have ample capacity for its tributary flows.
Photograph 6-27 Civic Center Pump Station Access
EXISTING PUMP STATIONS
6-27 City of Manhattan Beach
Photograph 6-28 Civic Center Pump Station Wet Well
Recommendations
The Civic Center Pump Station is in good con
improvements are necessary at this time.
PIER PUMP STATION
Location and Tributary Area
dition, and no
6-9
The Pier Pump Station is a submersible pump statio
located at the end of the Manhattan Beach Pie
Photograph 6-29 Civic Center Pump Station
Pumps
n
r.
Access to the pump station, shown on Photograph 6-
30, is through manhole cover on the pier. The pump
station is approximately 15 years old. The Pier
Pump Station serves the restaurant located at the
end of the pier.
Wet Well
Photograph 6-30 Pier Pump Station Access
The existing wet well (Photograph 6-31) is a 4’-0” x
4’-0” reinforced concrete vault.
Photograph 6-31 Pier Pump Station Wet Well
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
EXISTING PUMP STATIONS
6-28 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan Forcemain
The forcemain/discharge pipe is a 4-inch cast iron pipe alon g the north side of the Pier. Due to its location, it has experienced significant corrosion, as shown on Photographs 6-32 and 6-33.
Pumps
Photograph 6-32 Pier Pump Station Force Main
Photograph 6-33 Pier Pump Station Force Main Close-up
There are two (2) submersible pumps that are driven by 3 HP motors. While record information is not available, the pumps appear to have ample capacity for the tributary flows.
Recommendations
Due to its significantly deteriorated condition, the fo rce main/discharge pipe should be replaced with a non- corrosive pipe properly protected from the environment.
City of Manhattan Beach SSMP
193
Appendix 6 – Wastewater Master Plan – Section 7, Hydraulic Model & Collection System Capacity Analysis
7-1 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
SECTION 7
HYDRAULIC MODEL AND COLLECTION SYSTEM CAPACITY ANALYSIS
7-1 GENERAL
To perform a detailed evaluation of the capacity of t he sewer collection system, it is convenient to create a mathematical model that is capable of simulating the operating characteristics of the system. The simulations for this study were performed on a Microsoft Windows based computer utilizing software designed for the analysis of sewer systems. The software selected fo r this study is InfoSewer. It is an ArcGIS-based computer program with the ability to perform steady state analyses of the flows in the sewer system.
InfoSewer offers direct ArcGIS integration allowing GIS analysis and hydraulic modeling to exist in a single environment. The program also manages and mainta ins the database that stores the sewer analysis input and output results. Manning’s Equation is used for depth of flow calculations in the gravity sewer pipes.
7-2 GEOMETRIC MODEL
As a part of this Master Plan project, the City’s Wa stewater GIS was developed. As-built plans were georeferenced and the wastewater facilities were then digi tized. Data was collected from the as-built plans and input into the GIS. The developed Wastewater GIS served as the basis of the system geometric model.
Data utilized included upstream and downstream manhole invert elevations, pipe sizes and pipe lengths.
Design pipe slopes were calculated from the invert elevations and reach lengths.
Inverts for approximately 4.8 percent of the system (99 reaches out of 2,078) were not found through a search of the City’s available construction plans. Invert elevations for these reaches were obtained through field surveying. Detailed survey information is provided in Appendix 2.
The hydraulic model includes the entire sewer system that is owned and operated by the City, from the uppermost reaches of the system to its confluence wi th a Los Angeles County Sanitation District (LACSD) trunk sewer or until the flow exits the City into an adjacent agency facility. Excluded from the model are laterals, private sewers, and any areas within the City that are provided sewer service by other agencies. The pipe information utilized in the model, including size, material, le ngth, and upstream/d ownstream manhole elevations is listed in Appendix 3.
7-3 LAND USE
The parcel layer, which provides the City’s 2003 General Plan land use information, was used as the land use base map. The land uses within the City boundaries are sh own on Figure 3-4. Since the City’s service area is mostly developed, the hydraulic analyses were co nducted assuming fully developed and occupied tributary areas.
HYDRAULIC MODEL AND CAPACITY ANALYSIS
7-4
SPLIT MANHOLES AND FLOW PATTERNS
The existing system consists of 16 split manholes (m ore than one pipe exiting the manhole). Most of the split manholes occur at high points in the system, where the manhole is typically dry. In general, the flows at the split manholes were divided by calculations based on invert elevations, downstream pipes sizes, and downstream slopes at the split manhole.
Table 7-1
Flow Split Locations
No.
Manhole
ID Location
Flow Directions
from Split
Manhole Comments
1 06-009 Cedar Ave & 16th St East-West High Point
2 06-011 Sepulveda Blvd & 17th St North-South High Point 3 06-040 Meadows Ave & 12th St North-South High Point
4 06-168 Dianthus St & 11th St East-West High Point
5 06-193 Pacific Ave & 23rd St North-South High Point
6 06-203 Poinsettia Ave & 18th St North-South High Point 7 06-225 Pine Ave & 19th St North-South High Point
8 06-230 Elm Ave & Marine Ave North-South High Point
9 06-245 Palm Ave & 23rd St North-South High Point
10 06-277 Sepulveda Blvd & 30th St North-South High Point 11 06-287 Elm Ave & 30th St North-South High Point
12 10-148 Ingleside Dr & 1st St South- Southeast -
13 11-001 19 th St & Ardmore Ave East-West High Point
14 16-021 Bell Ave & 27th St North-Northwest -
15 17-027 36th Pl & Blanche Rd East-West High Point
16 20-059 Manhattan Ave & 24th St North-West -
7-5 TRIBUTARY AREAS
Polygons were created around individual sewer manholes to define the tributary area to each manhole.
Most manholes have a tributary area assigned to it unles s there are multiple manholes in the same area.
Approximately 1,530 polygons were created for the existing and ultimate system analysis. A sample area, displaying the tributary area polygons is shown on Figure 7-1.
7-2 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
HYDRAULIC MODEL AND CAPACITY ANALYSIS
Figure 7-1
Tributary
Area Polygons
7-6 MODEL LOADS
For each tributary area, the existing land uses (discussed in Subsection 3-5) and the developed unit flow factors (see Table 4-2) were utilized to apply the average loads to the hydraulic model.
Peak dry weather flows are calculated in the model by a user defined relationship. The peaking formula used in the City’s sewer model is as follows:
PDWF (cfs) = 2.35 x ADWF(cfs)
0.92 7-7 PUMPED FLOWS
There are two separate analysis methods that can be used on the City’s sewer collection system to evaluate the effect of pumped flows downstream of the existing 8 pump stations. A description of each of the analysis methods is as follows:
Method 1: The average tributary flow to each pum p station was transferred to the manholes located at the discharge end of the respective forcem ains. The total average flow was peaked and the downstream sewer depth to diamet er ratios were evaluated ba sed on the calculated peak dry weather flows or
Qpdw = (2.35 x Qadw
0.92) (in mgd)
7-3 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
HYDRAULIC MODEL AND CAPACITY ANALYSIS
Method 2: The pump capacity of each pump station was transferred to the manholes located at the discharge end of the respective forcemains. The pu mp capacities were not peaked, but added to the peak dry weather flow at each manhole located do wnstream of the pump station. The downstream sewer depth to diameter ratios were evaluated ba sed on the calculated peak dry weather flows plus the pump capacities (Qpump) or
Qpdw = (2.35 x Qadwf 0.92) + Qpump (in mgd)
Flow monitoring results have shown that pump discharge becomes more and more attenuated the further downstream in the system the monitor is placed. Often times, only the first few reaches located immediately downstream of the discharge point will ex perience a rush of flow that reflects the pump capacity as displayed on Figure 7-2. In this study, the pump capacity was only considered in the first few reaches downstream of the pump discharge locations. For the pipes located a far distance from the pump discharge point, the calculated peak dry weathe r flow based on land use and unit flow factors was utilized for analysis (Method 1).
Figure 7-2
Flow Monitoring of 8” Sewer with Influence from Voorhees Pump Station 0 25
50 75
100
125
150
175
200
225
250
12:00 AM
1:00 AM
2:00 AM
3:00 AM
4:00 AM
5:00 AM
6:00 AM
7:00 AM
8:00 AM
9:00 AM
10:00 AM
11:00 AM
12:00 PM
1:00 PM
2:00 PM
3:00 PM
4:00 PM
5:00 PM
6:00 PM
7:00 PM
8:00 PM
9:00 PM
10:00 PM
11:00 PM
12:00 AM
Flow (gpm)
Time
Monday - January 19, 2009
Location: Gates Ave and Herrin St, MH 01-076
Qmin= 0.7 gpm, Qave=91 gpm, Qmax=240 gpm
7-4 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
HYDRAULIC MODEL AND CAPACITY ANALYSIS
7-8
HYDRAULIC ANALYSIS RESULTS
At the completion of a modeling run, output data is created for viewing on the screen or for printing.
Output data for pipes include flow rate, velocity, full pipe capacity, ratio of flow depth to diameter, and required size of replacement or relief pipes to sati sfy the established criterion. Appendix 4 of this Wastewater Master Plan contains the results of hydraulic analyses of the sewer collection system.
The depth to diameter ratio exceeded the established criteria of 0.64 at the following locations:
1. Bell Avenue at 25
th Street (Pipe ID 15084-070L4)
10” diameter sewer with peak d/D>1.00
No pump station influence
As-built plans show a slope of 0.00 and a length of 10 feet. The downstream manhole 070L4 is a LACSD manhole. It is recommended that the slope of this sewer be verified.
2. Pacific Avenue north of 27
th Street (Pipe ID 08077-08082)
8” diameter sewer with peak d/D=0.66 with no pump station influence 8” diameter sewer with peak d/D>1.00 with pump station influence from Palm Avenue PS (see Table 7-2 and description below)
A few reaches downstream of the Poinsettia Avenue Pump Station, Palm Avenue Pump Station, and Bell Avenue Pump Station discharge locations resulted in d/D ratios greater than 0.64 when the pump capacities were implemented (Method 2). These locations are listed in Table 7-2 and shown on Figure 7-
3. It is recommended that flow monitoring be conducted in these areas to verify the d/D ratios prior to implementing any replacement projects.
Table 7-2
Pipes with Model Calculated Capacity Deficiencies Downstream of Pump Discharge Points Pipe ID
U/S MH
ID
D/S MH
ID
Dia
(in)
Length
(ft) Slope
ADWF
(mgd)
Pumped
Flow
(mgd)
PDWF
(mgd)
PDWF
Vel
(ft/s)
PDWF
d/D
PDWF
Depth
(ft)
Full
Flow
(mgd) Comments
06173-06174 06-173 06-174 8 192 0.0040 0.0019 0.7363 0.7437 3.30 1.00 0.67 0.4959 D/S of Poinsettia PS 06174-06175 06-174 06-175 8 254 0.0040 0.0028 0.7363 0.7469 3.31 1.00 0.67 0.4962 D/S of Poinsettia PS 06175-06176 06-175 06-176 8 190 0.0136 0.0033 0.7363 0.7485 4.51 0.69 0.46 0.9125 D/S of Poinsettia PS 08037-08052 08-037 08-052 8 262 0.0040 0.0446 0.4085 0.5430 2.41 1.00 0.67 0.4957 D/S of Palm PS 08052-08055 08-052 08-055 8 281 0.0040 0.0583 0.4085 0.5805 2.57 1.00 0.67 0.4944 D/S of Palm PS 08055-08077 08-055 08-077 8 350 0.0040 0.0637 0.4085 0.5951 2.64 1.00 0.67 0.4953 D/S of Palm PS 08077-08082 08-077 08-082 8 110 0.0040 0.0858 0.4085 0.6538 2.90 1.00 0.67 0.4951 D/S of Palm PS 16019-16022 16-019 16-022 8 68 0.0099 0.0131 0.5728 0.6164 3.84 0.67 0.45 0.7809 D/S of Bell PS 16022-070L3 16-022 07-0L3 10 18 0.0028 0.0135 0.5728 0.6176 2.38 0.69 0.58 0.7504 D/S of Bell PS Total 1,725
7-5 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
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#*
#*
#*
#*
#* #*
#*
#*
#*
#*
City of El Segundo
City of
Hawthorne
City of
Redondo
Beach
City of Hermosa
Beach
Pacific Ocean
Pier PS
Civic
Center PS
LACSD PS
Palm
Ave PS
Pacific
Ave PS
Poinsetta
Ave PS
Meadows
Ave PS
Voorhees
Ave PS
Bell
Ave PS
9TH ST
8TH ST
11TH ST
OCEAN DR
2ND ST
10TH ST
6TH ST
THE STRAND
VALLEY DR
HIGHLAND AVE
ROSECRANS AVE
AVIATION BLVD
MARINE AVE
SEPULVEDA BLVD
PACIFIC AVE
27TH ST
PECK AVE
35TH ST
ARDMORE AVE
MEADOWS AVE
19TH ST
ROWELL AVE
OAK AVE
ELM AVE
HERRIN ST
31ST ST
5TH ST
23RD ST
POINSETTIA AVE
3RD ST
MANHATTAN BEACH BLVD
VISTA DR
HARKNESS ST
21ST ST
ALMA AVE
15TH ST
CREST DR
18TH ST
ARTESIA BLVD
1ST ST
17TH ST
36TH ST
35TH PL
36TH PL
DIANTHUS ST
30TH ST
31ST PL
29TH ST
33RD PL
24TH ST
BLANCHE RD
4TH ST
WALNUT AVE
7TH ST
26TH ST
PINE AVE
20TH PL
MANHATTAN AVE
LAUREL AVE
GATES AVE
CEDAR WAY
28TH ST
BAYVIEW DR
34TH ST
JOHN PL
CURTIS AVE
WENDY WY
JOHNSON ST
MAGNOLIA AVE
PARKVIEW AVE
NELSON AVE
33RD ST
12TH ST
11TH PL
MANZANITA LN
RUHLAND AVE
MATHEWS AVE
PACIFIC PL
DUNCAN PL
FAYMONT AVE
13TH ST
CARLOTTA WAY
LYNNGROVE DR
VOORHEES AVE
3RD PL
PALM AVE
4TH PL
JOHN ST
DUNCAN AVE
KUHN DR
KEATS ST
5TH PL
16TH ST
25TH ST
6TH PL
BOUNDARY PL
MAGNOLIA WAY
14TH ST
HERRIN AVE
18TH PL
7TH PL
LARSSON ST
2ND PL
VILLAGE CIR
CEDAR AVE
8TH PL
21ST PL
41ST ST
38TH ST
1ST PL
44TH ST
TENNYSON ST
ANDERSON ST
9TH PL
FAIRWAY DR
MANOR DR
AGNES RD
22ND ST
REDONDO AVE
RONDA DR
20TH ST
AVIATION WY
14TH PL
HOMER ST
27TH PL
SAUSALITO CIR
MARINE PL
PARK PL
MORNINGSIDE DR
GATEWAY DR
FRANCISCO ST
SEAVIEW ST
FLOURNOY RD
AVIATION PL
EL PORTO ST
10TH PL
VILLAGE DR
12TH PL
VILLA ESCUELA
HALEY WY
27TH WAY
CATALINA CT
INGLESIDE DR
BERMUDA CT
MARIN CT
18TH ST
2ND PL
17TH ST
17TH ST
23RD ST
20TH ST
14TH ST
30TH ST
23RD ST
21ST PL
35TH PL
PECK AVE
33RD ST
36TH PL
3RD ST
OAK AVE
REDONDO AVE
15TH ST
12TH ST
CURTIS AVE
19TH ST
3RD ST
WALNUT AVE
15TH ST
1ST ST
18TH ST
12TH ST
AGNES RD
JOHN ST
ELM AVE
PALM AVE
30TH ST
5TH ST
23RD ST
PINE AVE
28TH ST
29TH ST
26TH ST
MAPLE AVE
LAUREL AVE
32ND ST
4TH PL
19TH PL
BELL AVE
BELL AVE
BELL AVE
6TH PL
15TH PL
HIGHVIEW AVE
16TH PL
17TH PL
2ND PL
8TH PL
40TH ST
45TH ST
39TH ST
43RD ST
42ND ST
PROSPECT AVE
38TH PL
23RD PL
23RD PL
23RD PL
23RD PL
23RD PL
KELP ST
GULL ST
CHESTNUT AVE
CHESTNUT AVE
CHABELA DR
SHELLEY ST
SHELL ST
27TH PL
34TH PL
34TH PL
34TH PL
34TH PL
12TH CT
MARINE PL
MARINE PL
26TH PL
26TH PL
30TH PL
30TH PL
30TH PL
30TH PL
32ND PL
32ND PL
32ND PL
32ND PL
MORNINGSIDE DR
WESTPORT
LONGFELLOW DR
LONGFELLOW DR
29TH PL
29TH PL
29TH PL
29TH PL
FLOURNOY RD
28TH PL
28TH PL
28TH PL
28TH PL
VILLAGE CENTER DR
MARKET PL
10TH PL
10TH PL
10TH PL
PARK WY
FISHER AVE
DUNCAN DR
MOONSTONE ST
ALTURA WY
CHATHAM
GRANDVIEW AVE
GRANDVIEW AVE
GRANDVIEW AVE
BRIDGEPORT
24TH PL
24TH PL
24TH PL
24TH PL
ROSECRANS PL
MALAGA WY
RAILROAD PL
CARRIAGE PL
EVERGREEN LN
11TH Pl
DEEGAN PL
LAUREL SQ
31ST WAY
13TH PL
13TH PL
12TH PL
ARDMORE WY
CENTER PL
CENTER PL
25TH PL
25TH PL
25TH PL
TERRAZA PL
CHURCH ST
CAMBRIDGE
CAMINO CARDINELL
DOVER PL
MALAGA PLE
MALAGA PLW
ARBO LADO CT
HOMER PL
HOMER PL
INGLESIDE DR
STRATFORD LAGUNA CT
BRYANT PL
CORONADO CT
CAYMAN CT
PACIFIC Pl
GRENADA CTSANTA CRUZ CT
MONTEREY CT
NANTUCKET PL
TIBURON CT
SANTA ROSA CT
PORTSMOUTH WY
CORDOBA CT
SAN MIGUEL CTLAFAYETTE CT
3RD PL
18TH ST
11TH PL
14TH ST
MANHATTAN AVE
17TH ST
6TH ST
33RD PL
PINE AVE
MARINE PL
33RD PL
3RD PL
14TH ST
2ND PL
11TH ST
35TH ST
12TH ST
3RD ST
14TH ST
19TH ST
5TH PL
1ST PL
POINSETTIA AVE
33RD ST
CREST DR
33RD PL
31ST ST
31ST PL
BAYVIEW DR
31ST PL
22ND ST
35TH PL
10TH ST
1ST PL
25TH ST
8TH ST
12TH PL
2ND ST
9TH PL
MARINE AVE
GATES AVE
6TH PL
BAYVIEW DR
27TH ST
CREST DR
12TH ST
31ST PL
33RD ST
HOMER ST
6TH ST
MARINE PL
BAYVIEW DR
9TH ST
5TH ST
PACIFIC PL
13TH ST
7TH PL
35TH PL
1ST ST
9TH PL
8TH PL
18TH ST
VISTA DR
1ST PL
18TH ST
36TH PL
11TH PL
21ST ST
3RD ST
36TH PL
31ST PL
35TH PL
7TH PL
CREST DR
36TH ST
33RD PL
5TH PL
21ST ST
CREST DR
1ST ST
36TH PL
VOORHEES AVE
5TH ST
4TH PL
1ST PL
³
0 1,200 2,400600
Feet
1" = 1,200'
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Model Calculated Capacity Deficiency Locations
Legend
#*
!(
#*
PROJECT NO: 1640901.10
DATE: September 2009
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Model Calculated
Capacity Deficiency Locations
Figure 7-3
City of Manhattan Beach SSMP
200
Appendix 7 – Wastewater Master Plan – Section 8, Condition Assessment
8-1 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
SECTION 8
COLLECTION SYSTEM CONDITION ASSESSMENT
8-1 INTRODUCTION
The City of Manhattan Beach (City) established a prog ram to begin CCTV inspections of its approximately 86 mile long sewer collection system. The scope of the Master Plan included inspections of 227,714 feet (43.1 miles) of pipe or 52.9 percent of the total system.
Condition assessment of the inspected gravity sewer pipe s and manholes is presented in this section. The procedure followed to complete the assessment of the gravity sewers is as follows:
a. Conduct CCTV Inspections.
b. Review information provided by the CCTV contractor.
c. Prepare a database summarizing the findings of the CCTV reports and recordings. d. Prioritize the CCTV recordings per the database summary to select a list of reaches with numerous or significant defects of representative types. Consider operation and maintenance issues separately and identify additional hotspots for the City’s review. e. Select representative reaches of the system to review the CCTV recordings in detail to ensure compliance with CCTV standards and procedures a nd further prioritize the sewers for replacement and/or repair. Verify the completeness of the inspection reports and update the inspection database. f. Develop a rating system to identify and prioritize the condition deficiencies, therefore identifying the critical sewer mains in need of rehabilitation and/or repair. Focus on the sewer pipes that are at risk of collapse or prone to more frequent blockages.
g. Develop an engineer’s cost estimate for the rehab ilitation/replacement of the sewer mains, including construction cost, design, inspection, administration, and contingencies.
8-2 CLOSED CIRCUIT TELEVISION (C CTV) INSPECTIONS OF GRAVITY PIPES
Empire Pipe Cleaning and Equipment, Inc. (Empire) performed video inspection work on approximately 222,714 feet of pipe between October 2008 and August 2 009. Seventy-six (137) DVD’s with inspection reports for 1,200 reaches of sewer were produced by Empire. Each inspection report lists the service connections and deficiencies by location in the inspec ted pipe. Photographs of t he identified deficiencies are included in the inspection reports.
The locations of City sewers with completed CCTV inspections are shown on Figure 8-1. The CCTV inspected sewer pipes range in size from 6-inches to 15-inches in diameter. The majority of the pipes inspected is 8-inches in diameter and made of vitrified clay pipe (VCP).
National Association of Sewer Service Companies (NASSCO) Pipeline Assessment and Certification Program (PACP) coding procedures formed the basis of the inspection work and reports prepared by Empire.
COLLECTION SYSTEM CONDITION ASSESSMENT
8-2 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
8-2.1 INSPECTION REPO RT DATABASE SUMMARY
Initially, a database summary was deve loped utilizing the CCTV inspection written reports. This database summary contained a tabulation of the deficiencies ident ified in the written reports, including the following information:
DVD Number
Inspection (Run) Number
Reversal DVD Number
Reversal Inspection (Run) Number
Location (Street Name)
CCTV Inspection Date
Pipe Identification Number
Upstream Manhole and Downstream Manhole Identification Numbers Direction of Camera
Pipe Size and Material
Atlas Length and CCTV Inspected Length of Pipe
Deficiency Tabulation from Written Reports using PACP codes 8-2.2 REVIEW OF REPR ESENTATIVE CCTV RECORDINGS
The inspection report database summary was used in sele cting the recordings to be reviewed in detail. The pipe reaches selected for detailed review were those that showed the most severe structural problems and multiple deficiencies, as well as severe operation and maintenance issues.
First, the reaches that had listed deficiencies such as deformed pipe, hole in pipe, broken pipe, large offset joint, large obstacles, and ball roots were selected for re view. These deficiencies can be a cause of sanitary sewer collapse, overflow or exfiltration into the surrounding soil and may need immediate attention. Next, reaches that had numerous or multiple deficiencies such as fractures, cracks, root s, deposits, obstructions, sags, camera underwater, and survey abandoned were sele cted. Finally, several reaches without listed deficiencies were selected in order to develop insight into the overall condition of the CCTV inspected system.
Recordings for 264 reaches and 53,789 feet of pipe (23. 9% of total inspected) were selected and reviewed in detail. The assessment information of pipes reviewed in detail was incorporated into the original Inspection Report Database Summary. Seventy-two (72) reverse inspections were conducted and are included in the database summary. The reverse set-ups were conducted to complete runs when the camera was blocked for any reason. The length recorded for some of the r eaches where reverse inspections were necessary may be shorter than actual due to blockages in the pipe, as sometimes the camera was not able to reach the same point in the pipe from two directions.
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#*
#*
#*
#*
#* #*
#*
#*
#*
#*
City of El Segundo
City of
Hawthorne
City of
Redondo
Beach
City of Hermosa
Beach
Pacific Ocean
Pier PS
LACSD PS
Palm
Ave PS
Pacific
Ave PS
Poinsetta
Ave PS
Meadows
Ave PS
Voorhees
Ave PS
Bell
Ave
PS
Civic
Center
PS
9TH ST
8TH ST
11TH ST
OCEAN DR
2ND ST
10TH ST
6TH ST
THE STRAND
VALLEY DR
HIGHLAND AVE
ROSECRANS AVE
AVIATION BLVD
MARINE AVE
SEPULVEDA BLVD
PACIFIC AVE
27TH ST
PECK AVE
35TH ST
ARDMORE AVE
MEADOWS AVE
19TH ST
ROWELL AVE
OAK AVE
ELM AVE
HERRIN ST
31ST ST
5TH ST
23RD ST
POINSETTIA AVE
3RD ST
MANHATTAN BEACH BLVD
VISTA DR
HARKNESS ST
21ST ST
ALMA AVE
15TH ST
CREST DR
18TH ST
ARTESIA BLVD
1ST ST
17TH ST
36TH ST
35TH PL
36TH PL
DIANTHUS ST
30TH ST
31ST PL
29TH ST
33RD PL
24TH ST
BLANCHE RD
4TH ST
WALNUT AVE
7TH ST
26TH ST
PINE AVE
20TH PL
MANHATTAN AVE
LAUREL AVE
GATES AVE
CEDAR WAY
28TH ST
BAYVIEW DR
34TH ST
JOHN PL
CURTIS AVE
WENDY WY
32ND ST
JOHNSON ST
MAGNOLIA AVE
PARKVIEW AVE
NELSON AVE
33RD ST
12TH ST
11TH PL
MANZANITA LN
RUHLAND AVE
MATHEWS AVE
PACIFIC PL
DUNCAN PL
FAYMONT AVE
13TH ST
CARLOTTA WAY
LYNNGROVE DR
VOORHEES AVE
3RD PL
PALM AVE
4TH PL
JOHN ST
DUNCAN AVE
KUHN DR
KEATS ST
5TH PL
16TH ST
BELL AVE
25TH ST
6TH PL
BOUNDARY PL
MAGNOLIA WAY
HIGHVIEW AVE
14TH ST
HERRIN AVE
18TH PL
7TH PL
LARSSON ST
2ND PL
VILLAGE CIR
CEDAR AVE
8TH PL
21ST PL
41ST ST
38TH ST
1ST PL
44TH ST
TENNYSON ST
ANDERSON ST
9TH PL
FAIRWAY DR
MANOR DR
AGNES RD
23RD PL
22ND ST
REDONDO AVE
RONDA DR
20TH ST
AVIATION WY
14TH PL
HOMER ST
27TH PL
SAUSALITO CIR
MARINE PL
26TH PL
PARK PL
MORNINGSIDE DR
GATEWAY DR
FRANCISCO ST
SEAVIEW ST
AVIATION PL
EL PORTO ST
10TH PL
VILLAGE DR
12TH PL
ARDMORE WY
CENTER PL
25TH PL
VILLA ESCUELA
HALEY WY
27TH WAY
CATALINA CT
INGLESIDE DR
BERMUDA CT
MARIN CT
OAK AVE
20TH ST
2ND ST
14TH ST
PINE AVE
33RD ST
23RD ST
POINSETTIA AVE
30TH ST
33RD PL
3RD ST
36TH ST
21ST ST
17TH ST
VOORHEES AVE
12TH ST
33RD ST
19TH ST
PECK AVE 18TH ST
28TH ST
15TH ST
REDONDO AVE
BELL AVE
36TH PL
PALM AVE
1ST ST
30TH ST
5TH ST
23RD ST
18TH ST
GATES AVE
26TH ST
15TH ST
18TH ST
17TH ST
JOHN ST
5TH ST
MAPLE AVE
LAUREL AVE
4TH PL
19TH PL
6TH PL
15TH PL
16TH PL
14TH ST
17TH PL
2ND PL
8TH PL
40TH ST
45TH ST
39TH ST
43RD ST
42ND ST
PROSPECT AVE
38TH PL
KELP ST
GULL ST
CHESTNUT AVE
CHESTNUT AVE
CHABELA DR
SHELLEY ST
SHELL ST
34TH PL
34TH PL
34TH PL
34TH PL
12TH CT
MARINE PL
MARINE PL
26TH PL
30TH PL
30TH PL
30TH PL
30TH PL
32ND PL
32ND PL
32ND PL
32ND PL
MORNINGSIDE DR
WESTPORT
LONGFELLOW DR
LONGFELLOW DR
29TH PL
29TH PL
29TH PL
29TH PL
FLOURNOY RD
FLOURNOY RD
28TH PL
28TH PL
28TH PL
28TH PL
VILLAGE CENTER DR
MARKET PL
10TH PL
10TH PL
10TH PL
PARK WY
FISHER AVE
DUNCAN DR
MOONSTONE ST
ALTURA WY
CHATHAM
GRANDVIEW AVE
GRANDVIEW AVE
GRANDVIEW AVE
BRIDGEPORT
24TH PL
24TH PL
24TH PL
24TH PL
ROSECRANS PL
MALAGA WY
RAILROAD PL
CARRIAGE PL
EVERGREEN LN
11TH Pl
DEEGAN PL
LAUREL SQ
31ST WAY
13TH PL
13TH PL
12TH PL
25TH PL
TERRAZA PL
CHURCH ST
CAMBRIDGE
CAMINO CARDINELL
DOVER PL
MALAGA PLE
MALAGA PLW
ARBO LADO CT
HOMER PL
HOMER PL
INGLESIDE DR
STRATFORD LAGUNA CT
BRYANT PL
CORONADO CT
CAYMAN CT
PACIFIC Pl
GRENADA CTSANTA CRUZ CT
MONTEREY CT
NANTUCKET PL
TIBURON CT
SANTA ROSA CT
PORTSMOUTH WY
CORDOBA CT
SAN MIGUEL CTLAFAYETTE CT
8TH PL
7TH PL
13TH ST
17TH ST
PINE AVE
CREST DR
MARINE PL
1ST PL
BAYVIEW DR
3RD ST
33RD PL
27TH ST
12TH PL
CREST DR
27TH PL
6TH ST
12TH ST
29TH ST
12TH ST
33RD PL
7TH PL
PACIFIC PL
35TH PL
31ST ST
14TH ST
CREST DR
23RD ST
VISTA DR
4TH PL
33RD ST
1ST PL
2ND PL
BAYVIEW DR
31ST PL
35TH PL
1ST ST
ELM AVE
2ND PL
9TH PL
WALNUT AVE
10TH ST
8TH ST
MANHATTAN AVE
36TH PL
23RD PL
6TH PL
HOMER ST
5TH PL
9TH ST
25TH PL
MARINE AVE
22ND ST
3RD ST
36TH PL
11TH ST
18TH ST
35TH ST
11TH PL
5TH ST
12TH ST
CREST DR
35TH PL
11TH PL
MARINE PL
BAYVIEW DR
CENTER PL
6TH ST
5TH PL
23RD PL
3RD PL
1ST PL
19TH ST
23RD PL
1ST PL
18TH ST
9TH PL
AGNES RD
1ST ST
3RD PL
21ST ST
3RD ST
31ST PL
33RD PL
BELL AVE
36TH PL
31ST PL
21ST PL
35TH PL
14TH ST
CURTIS AVE
31ST PL
25TH ST
23RD PL
³
0 1,200 2,400600
Feet
1" = 1200'
PROJECT NO: 1640901.10
DATE: September 2010
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
CCTV Locations
Figure 8-1
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
CCTV Inspection Location
Legend
!(
#*
#*
COLLECTION SYSTEM CONDITION ASSESSMENT
8-4 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
8-2.3 CONDITION GRADING
The PACP condition grading system was used to assign a condition rating for structural defects and operation and maintenance defects for each reach of pipe. The rating provides the ability to quantitatively measure the difference in pipe condition between one inspection and subsequent inspections, and to prioritize among different pipe segments. A grade of 1 to 5 is assigned to each defect based on potential for further deterioration or pipe failure. Pipe failure is defined as when it can no longer convey the design capacity. The grades are as follows:
5 – Immediate Attention Defect s requiring immediate attention 4 – Poor Severe defects that will become Gr ade 5 defects within the foreseeable future 3 – Fair Moderate defects that will continue to deteriorate 2 – Good Defects that have not begun to deteriorate
1 – Excellent Minor defects
A truly continuous defect is defined as a defect that ex tends more than 3 feet. A repeated continuous defect is defined as a defect that occurs in a length of pipe in at least 75 percent of the joints (i.e. 3 out of 4 joints).
The equivalent number (quantity) of “truly” and “repeating” continuous defects is calculated by dividing the length of the continuous defect by 5, normalizing the defects for comparison to other reaches. Each unit in the number of defects represents an occurrence of defect or a joint length of defective pipe. This is a PACP standard.
The grade values for the most common defects are shown in Table 8-1. For defects with variable grade values dependent on the degree of deficiency of the defect, an estimated average value was used.
Figure 8-2 shows the number of reaches where an ident ified deficiency was found at least once within the reach. It provides a general sense of the magnitude of the problems that were found in the City’s collection system. The problems identified most often were fine roots (835 reaches, 22% of total), cracks (563 reaches, 15% of total) and joint offset medium (437 reaches, 12% of total).
The structural defect score and O& M defect score is calculated by multiplying the number of occurrences of each defect by its assigned grade and summing them.
The structural defect index and the O&M defect index is calculated by dividing the defect score by the number of defects. It is an indicator of the distribution of defect severity.
Figure 8-3 is a plot of the number of reaches versus the highest deficiency grades found in each reach. For example, there were 218 reaches found with at least one structural deficiency grade of 5 and 4 reaches found with at least one operation and maintenance deficiency grade of 5.
Figures 8-4 through 8-6 illustrate the locations of the reaches with significant st ructural defec ts such as broken pipe, holes in pipe, and large joint offsets.
COLLECTION SYSTEM CONDITION ASSESSMENT
8-5 City of Manhattan Beach
Table 8-1
Defect Codes and Condition Grades
PACP
Code Structural Defect Coding Grade
PACP
Code
Operational & Maintenance and Construction
Features Grade
CL Crack - longitudinal 2 DAE Deposits Attached - encrustation 2 CC Crack - circumferential 1 DAGS Deposits Attached - grease 2 CM Crack - multiple 3 DAR Deposits Attached - ragging 2 CS Crack - spiral 2 DAZ Deposits Attached - other 2
FL Fracture - longitudinal 3 DSF Deposits Settled - fine 2 FC Fracture - circumferential 2 DSC Deposits Settled - hard/compacted 2 FM Fracture - multiple 4 DSZ Deposits Settled - other 2 FS Fracture - spiral 3 DNF Deposits Ingress - fine material (silt & sand) 2 BSV Broken - soil visible 5 RFB Roots Fine - barrel 2
BVV Broken - void visible 5 RFL Roots Fine - lateral 1
HSV Hole - soil visible 5 RFC Roots Fine - connection 1 HVV Hole - void visible 5 RFJ Roots Fine - joint 1
JOL Joint Offset - large 5b RMB Roots Medium - barrel 4 JOM Joint Offset - medium 3a RML Roots Medium - lateral 3 JSL Joint Separated - large 2 RMC Roots Medium - connection 3 JSM Joint Separated - medium 1 RMJ Roots Medium - joint 3 RPZ Point Repair - other 1 RBB Roots Ball - barrel 5
MWLS Miscellaneous - water level, sag. 2 RBL Roots Ball - lateral 4 RBC Roots Ball - connection 4
a PACP grade is 1. Grade was increased RBJ Roots Ball - joint 4 for this report, because defect is considered RTB Roots Tap - barrel 3 to be major. RTC Roots Tap - connection 2
b PACP grade is 2. Grade was increased RTJ Roots Tap - joint 2 for this report, because defect is considered IW Infiltration - Weeper 2 to be severe. ID Infiltration - Dripper 3
IR Infiltration - Runner 4
IG Infiltration - Gusher 5
OBI Obstacles - protruding through wall 4
OBJ Obstacles - wedged in joint 4
OBC Obstacles - through connection 4
OBP Obstacles -external pipe cable 4
OBS Obstacles - build into structure 4
OBN Obstacles - construction debris 4
OBR Obstacles - rocks 4
OBZ Obstacles - other 4
VC Vermin - cockroach 1
TFD Tap (Lateral) - factory made defective 2
TB Tap (Lateral) - break in 3
TBI Tap (Lateral) - intruding 3
TBA Tap (Lateral) - active 3
TBB Tap (Lateral) - abandoned 0
TBC Tap (Lateral) - capped 2
ISSRH Intruding Seal Material - ring hanging 4
LL Line - left 2
LD Line - Down 2
MCU Miscellaneous - camera underwater 4
MSC Miscellaneous - shape/size change 0
MMC Miscellaneous - material change 0
MSA Miscellaneous - survey abandoned 0
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
COLLECTION SYSTEM CONDITION ASSESSMENT
8-6 City of Manhattan Beach
Figure 8-2
Sewer Reaches with Identified Deficiencies
9 45
32 18
69 8
33 22
9 38
59 835
344
236
219
2 21
115
100
7 7
437
83 563
287
133
35 11
10 50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
Tap Break-In Defective
Tap Break-In Intruding
Tap Factory Defect
Intruding Sealing Material
Line
Infiltration
Vermin
Obstacles
Other Deposits
Calcium
Grease
Fine Roots
Medium Roots
Ball Roots
Tap Roots
Point Repair
Sag
Surfage Damage
Joint Separated Medium
Joint Separated Large
Joint Offset Medium
Joint Offset Large
Crack
Fracture
Broken Pipe
Hole In Pipe
Deformed Pipe
Collapsed Pipe
Number of Reaches where deficincy occurs at least once
Deficiency Description
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
COLLECTION SYSTEM CONDITION ASSESSMENT
8-7 City of Manhattan Beach
Figure 8-3
Deficiency Grades
0 50
100
150
200
250
300
350
400
543210
218
64 362
144
50 362
4 262
177
137
330
290
Number of Reaches
Highest Deficiency Grade In Reach
Structural
O&M
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#*
#*
#*
#*
#* #*
#*
#*
#*#*
City of El Segundo
City of
Hawthorne
City of
Redondo
Beach
City of Hermosa
Beach
Pacific Ocean
Pier PS
LACSD PS
Palm
Ave PS
Pacific
Ave PS
Poinsetta
Ave PS
Meadows
Ave PS
Voorhees
Ave PS
Bell
Ave
PS
Civic
Center
PS
9TH ST
8TH ST
11TH ST
OCEAN DR
2ND ST
10TH ST
6TH ST
THE STRAND
VALLEY DR
HIGHLAND AVE
ROSECRANS AVE
AVIATIO
N BLVD
MARINE AVE
SEPULVEDA BLVD
PACIFIC AVE
27TH ST
PECK AVE
35TH ST
ARDMORE AVE
M
EADO
W
S AVE
19TH ST
RO
W
ELL AVE
OA
K AVE
ELM
AVE
HERRIN ST
31ST ST
5TH ST
23RD ST
PO
INSETTIA AVE
3RD ST
MANHATTAN BEACH BLVD
VISTA DR
HARKNESS ST
21ST ST
ALM
A AVE
15TH ST
CREST DR
18TH ST
ARTESIA BLVD
1ST ST
17TH ST
36TH ST
35TH PL
36TH PL
DIANTHU
S ST
30TH ST
31ST PL
29TH ST
33RD PL
24TH ST
BLANCHE RD
4TH ST
W
ALNUT AVE
7TH ST
26TH ST
PINE AVE
20TH PL
MANHATTAN AVE
LAUREL AVE
GATES AVE
CEDAR W
AY
28TH ST
BAYVIEW
DR 34TH ST
JOHN PL
CURTIS AVE
W
ENDY W
Y
32ND ST
JO
HNSO
N ST
M
AG
NO
LIA AVE
PARKVIEW AVE
NELSON AVE
33RD ST
12TH ST
11TH PL
M
ANZANITA LN
RUHLAND AVE
MATHEWS AVE
PACIFIC PL
DUNCAN PL
FAYM
O
NT AVE
13TH ST
CARLO
TTA W
AY
LYNNG
RO
VE DR
VOORHEES AVE
3RD PL
PALM
AVE
4TH PL
JO
HN ST
DUNCAN AVE
KUHN DR
KEATS ST
5TH PL
16TH ST
BELL AVE
25TH ST
6TH PL
BOUNDARY PL
MAGNOLIA W
AY
HIGHVIEW
AVE
14TH ST
HERRIN AVE
18TH PL
7TH PL
LARSSO
N ST
2ND PL
VILLAGE CIR
CEDAR AVE
8TH PL
21ST PL
41ST ST
38TH ST
1ST PL
44TH ST
TENNYSON ST
ANDERSO
N ST
9TH PL
FAIRWAY DR
MANOR DR
AG
NES RD
23RD PL
22ND ST
REDO
NDO
AVE
RONDA DR
20TH ST
AVIATION WY
14TH PL
HOMER ST
27TH PL
SAUSALITO CIR
MARINE PL
26TH PL
PARK
PL
MORNINGSIDE DR
GATEWAY DR
FRANCISCO ST
SEAVIEW ST
AVIATIO
N PL
EL PORTO ST
10TH PL
VILLAG
E DR
12TH PL
ARDMORE WY
CENTER PL
25TH PL
VILLA ESCUELA
HALEY W
Y
27TH WAY
CATALINA CT
INGLESIDE DR
BERMUDA CT
MARIN CT
OA
K AVE
20TH ST
2ND ST
14TH ST
PINE AVE
33RD ST
23RD ST
PO
INSETTIA AVE
30TH ST
33RD PL
3RD ST
36TH ST
21ST ST
17TH ST
VOORHEES AVE
12TH ST
33RD ST
19TH ST
PECK AVE
18TH ST
28TH ST
15TH ST
REDO
NDO
AVE
BELL AVE
36TH PL
PALM
AVE
1ST ST
30TH ST
5TH ST
23RD ST
18TH ST
GATES AVE
26TH ST
15TH ST
18TH ST
17TH ST
JO
HN ST
5TH ST
M
APLE AVE
LAUREL AVE
4TH PL
19TH PL
6TH PL
15TH PL
16TH PL
14TH ST
17TH PL
2ND PL
8TH PL
40TH ST
45TH ST
39TH ST
43RD ST
42ND ST
PRO
SPECT AVE
38TH PL
KELP ST
GULL ST
CHESTNUT AVE
CHESTNUT AVE
CHABELA DR
SHELLEY ST
SHELL ST
34TH PL
34TH PL
34TH PL
34TH PL
12TH CT
MARINE PL
MARINE PL
26TH PL
30TH PL
30TH PL
30TH PL
30TH PL
32ND PL
32ND PL
32ND PL
32ND PL
MORNINGSIDE DR
W
ESTPO
RT
LONGFELLOW DR
LONGFELLOW DR
29TH PL
29TH PL
29TH PL
29TH PL
FLO
URNO
Y RD
FLO
URNO
Y RD
28TH PL
28TH PL
28TH PL
28TH PL
VILLAGE CENTER DR
M
ARK
ET PL
10TH PL
10TH PL
10TH PL
PARK
W
Y
FISHER AVE
DUNCAN DR
MOONSTONE ST
ALTURA WY
CHATHAM
GRANDVIEW
AVE
GRANDVIEW
AVE
GRANDVIEW
AVE
BRIDG
EPO
RT
24TH PL
24TH PL
24TH PL
24TH PL
ROSECRANS PL
M
ALAG
A W
Y
RAILRO
AD PL
CARRIAG
E PL
EVERGREEN LN
11TH Pl
DEEGAN PL
LAUREL SQ
31ST WAY
13TH PL 13TH PL
12TH PL
25TH PL
TERRAZA PL
CHURCH ST
CAM
B
RIDG
E
CAMINO CARDINELL
DOVER PL
MALAGA PLEMALAGA PLW
ARBO LADO CT
HOMER PL
HOMER PL INGLESIDE DR
STRATFO
RD
LAGUNA CT
BRYANT PL
CORONADO CT
CAYMAN CT
PACIFIC Pl
GRENADA CT
SANTA CRUZ CT
MONTEREY CT
NANTUCKET PL
TIBURON CTSANTA ROSA CT
PO
RTSM
O
UTH W
Y
CORDOBA CT
SAN MIGUEL CT
LAFAYETTE CT
8TH PL
7TH PL
13TH ST
17TH ST
PINE AVE
CREST DR
MARINE PL
1ST PL
BAYVIEW
DR
3RD ST
33RD PL
27TH ST
12TH PL
CREST DR
27TH PL
6TH ST
12TH ST
29TH ST
12TH ST
33RD PL
7TH PL
PACIFIC PL
35TH PL
31ST ST
14TH ST
CREST DR
23RD ST
VISTA DR
4TH PL
33RD ST
1ST PL
2ND PL
BAYVIEW
DR
31ST PL
35TH PL
1ST ST
ELM AVE
2ND PL
9TH PL
W
ALNUT AVE
10TH ST
8TH ST
MANHATTAN AVE
36TH PL
23RD PL
6TH PL
HOMER ST
5TH PL
9TH ST
25TH PL
MARINE AVE
22ND ST
3RD ST
36TH PL
11TH ST
18TH ST
35TH ST
11TH PL
5TH ST
12TH ST
CREST DR
35TH PL
11TH PL
MARINE PL
BAYVIEW
DR
CENTER PL
6TH ST
5TH PL
23RD PL
3RD PL
1ST PL
19TH ST
23RD PL
1ST PL
18TH ST
9TH PL
AG
NES RD
1ST ST
3RD PL
21ST ST
3RD ST
31ST PL
33RD PL BELL AVE
36TH PL
31ST PL
21ST PL
35TH PL
14TH ST
CURTIS AVE
31ST PL
25TH ST
23RD PL
³
0 1,200 2,400600
Feet
1" = 1200'
PROJECT NO: 1640901.10
DATE: September 2010
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Large Offset Joints
Figure 8-6
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Location Identified with Large Offset Joints
Legend
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#*
#*
#*
#*
#* #*
#*
#*
#*#*
City of El Segundo
City of
Hawthorne
City of
Redondo
Beach
City of Hermosa
Beach
Pacific Ocean
Pier PS
LACSD PS
Palm
Ave PS
Pacific
Ave PS
Poinsetta
Ave PS
Meadows
Ave PS
Voorhees
Ave PS
Bell
Ave
PS
Civic
Center
PS
9TH ST
8TH ST
11TH ST
OCEAN DR
2ND ST
10TH ST
6TH ST
THE STRAND
VALLEY DR
HIGHLAND AVE
ROSECRANS AVE
AVIATIO
N BLVD
MARINE AVE
SEPULVEDA BLVD
PAC
IFIC AVE
27TH ST
PECK AVE
35TH ST
ARDMORE AVE
M
EADO
W
S AVE
19TH ST
RO
W
ELL AVE
OA
K AVE
ELM
AVE
HERRIN
ST
31ST ST
5TH ST
23RD ST
PO
INSETTIA AVE
3RD ST
MANHATTAN BEACH BLVD
VISTA DR
HARKNESS ST
21ST ST
ALM
A AVE
15TH ST
CREST DR
18TH ST
ARTESIA BLVD
1ST ST
17TH ST
36TH ST
35TH PL
36TH PL
DIANTHUS ST
30TH ST
31ST PL
29TH ST
33RD PL
24TH ST
BLANCHE R
D
4TH ST
W
ALNUT AVE
7TH ST
26TH ST
PINE AVE
20TH PL
MANHATTAN AVE
LAUREL AVE
GATES AVE
CEDAR W
AY
28TH ST
BAYVIEW
DR 34TH ST
JOHN PL
CURTIS AVE
W
END
Y W
Y
32ND ST
JO
HNSO
N ST
M
AG
N
O
LIA AVE
PARKVIEW AVE
NELSON AVE
33RD ST
12TH ST
11TH PL
M
AN
ZANITA LN
RUHLAND AVE
MATHEWS AVE
PAC
IFIC PL
DUNCAN PL
FAYM
O
NT AVE
13TH ST
CARLO
TTA W
AY
LYNNG
R
O
VE DR
VOORHEES AVE
3RD PL
PALM
AVE
4TH PL
JO
HN ST
DUNCAN AVE
KUHN DR
KEATS ST
5TH PL
16TH ST
BELL AVE
25TH ST
6TH PL
BOUNDARY PL
MAGNOLIA W
AY
HIGHVIEW
AVE
14TH ST
HERRIN
AVE
18TH PL
7TH PL
LARSSO
N ST
2ND PL
VILLAGE CIR
CEDAR AVE
8TH PL
21ST PL
41ST ST
38TH ST
1ST PL
44TH ST
TENNYSON ST
ANDERSO
N ST
9TH PL
FAIRWAY DR
MANOR DR
AG
NES RD
23RD PL
22ND ST
REDO
NDO
AVE
RONDA DR
20TH ST
AVIATION WY
14TH PL
HOMER ST
27TH PL
SAUSALITO CIR
MARINE PL
26TH PL
PAR
K PL
MORNINGSIDE DR
GATEWAY DR
FRANCISCO ST
SEAVIEW ST
AVIATIO
N PL
EL PORTO ST
10TH PL
VILLAG
E DR
12TH PL
ARDMORE WY
CENTER PL
25TH PL
VILLA ESCUELA
HALEY W
Y
27TH WAY
CATALINA CT
INGLESIDE DR
BERMUDA CT
MARIN CT
OA
K AVE
20TH ST
2ND ST
14TH ST
PINE AVE
33RD ST
23RD ST
PO
INSETTIA AVE
30TH ST
33RD PL
3RD ST
36TH ST
21ST ST
17TH ST
VOORHEES AVE
12TH ST
33RD ST
19TH ST
PECK AVE
18TH ST
28TH ST
15TH ST
REDO
NDO
AVE
BELL AVE
36TH PL
PALM
AVE
1ST ST
30TH ST
5TH ST
23RD ST
18TH ST
GATES AVE
26TH ST
15TH ST
18TH ST
17TH ST
JO
HN ST
5TH ST
M
APLE AVE
LAUREL AVE
4TH PL
19TH PL
6TH PL
15TH PL
16TH PL
14TH ST
17TH PL
2ND PL
8TH PL
40TH ST
45TH ST
39TH ST
43RD ST
42ND ST
PRO
SPECT AVE
38TH PL
KELP ST
GULL ST
CHESTNUT AVE
CHESTNUT AVE
CHABELA DR
SHELLEY ST
SHELL ST
34TH PL
34TH PL
34TH PL
34TH PL
12TH CT
MARINE PL
MARINE PL
26TH PL
30TH PL
30TH PL
30TH PL
30TH PL
32ND PL
32ND PL
32ND PL
32ND PL
MORNINGSIDE DR
W
ESTPO
RT
LONGFELLOW DR
LONGFELLOW DR
29TH PL
29TH PL
29TH PL
29TH PL
FLO
URNO
Y RD
FLO
URNO
Y RD
28TH PL
28TH PL
28TH PL
28TH PL
VILLAGE CENTER DR
M
AR
KET PL
10TH PL
10TH PL
10TH PL
PAR
K W
Y
FISHER AVE
DUNCAN DR
MOONSTONE ST
ALTURA WY
CHATHAM
GRANDVIEW
AVE
GRANDVIEW
AVE
GRANDVIEW
AVE
BRIDG
EPO
RT
24TH PL
24TH PL
24TH PL
24TH PL
ROSECRANS PL
M
ALAG
A W
Y
RAILR
O
AD PL
CARRIAG
E PL
EVERGREEN LN
11TH Pl
DEEGAN PL
LAUREL SQ
31ST WAY
13TH PL 13TH PL
12TH PL
25TH PL
TERRAZA PL
CHURCH ST
CAM
BRIDG
E
CAMINO CARDINELL
DOVER PL
MALAGA PLEMALAGA PLW
ARBO LADO CT
HOMER PL
HOMER PL INGLESIDE DR
STRATFO
RD
LAGUNA CT
BRYANT PL
CORONADO CT
CAYMAN CT
PAC
IFIC Pl
GRENADA CT
SANTA CRUZ CT
MONTEREY CT
NANTUCKET PL
TIBURON CTSANTA ROSA CT
PO
RTSM
O
UTH W
Y
CORDOBA CT
SAN MIGUEL CT
LAFAYETTE CT
8TH PL
7TH PL
13TH ST
17TH ST
PINE AVE
CREST DR
MARINE PL
1ST PL
BAYVIEW
DR
3RD ST
33RD PL
27TH ST
12TH PL
CREST DR
27TH PL
6TH ST
12TH ST
29TH ST
12TH ST
33RD PL
7TH PL
PACIFIC PL
35TH PL
31ST ST
14TH ST
CREST DR
23RD ST
VISTA DR
4TH PL
33RD ST
1ST PL
2ND PL
BAYVIEW
DR
31ST PL
35TH PL
1ST ST
ELM AVE
2ND PL
9TH PL
W
ALNUT AVE
10TH ST
8TH ST
MANHATTAN AVE
36TH PL
23RD PL
6TH PL
HOMER ST
5TH PL
9TH ST
25TH PL
MARINE AVE
22ND ST
3RD ST
36TH PL
11TH ST
18TH ST
35TH ST
11TH PL
5TH ST
12TH ST
CREST DR
35TH PL
11TH PL
MARINE PL
BAYVIEW
DR
CENTER PL
6TH ST
5TH PL
23RD PL
3RD PL
1ST PL
19TH ST
23RD PL
1ST PL
18TH ST
9TH PL
AG
NES RD
1ST ST
3RD PL
21ST ST
3RD ST
31ST PL
33RD PL BELL AVE
36TH PL
31ST PL
21ST PL
35TH PL
14TH ST
CURTIS AVE
31ST PL
25TH ST
23RD PL
³
0 1,200 2,400600
Feet
1" = 1200'
PROJECT NO: 1640901.10
DATE: September 2010
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Holes in Pipe
Figure 8-5
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Location Identified with Hole in Pipe
Legend
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#*
#*
#*
#*
#* #*
#*
#*
#*#*
City of El Segundo
City of
Hawthorne
City of
Redondo
Beach
City of Hermosa
Beach
Pacific Ocean
Pier PS
LACSD PS
Palm
Ave PS
Pacific
Ave PS
Poinsetta
Ave PS
Meadows
Ave PS
Voorhees
Ave PS
Bell
Ave
PS
Civic
Center
PS
9TH ST
8TH ST
11TH ST
OCEAN DR
2ND ST
10TH ST
6TH ST
THE STRAND
VALLEY DR
HIGHLAND AVE
ROSECRANS AVE
AVIATIO
N BLVD
MARINE AVE
SEPULVEDA BLVD
PAC
IFIC AVE
27TH ST
PECK AVE
35TH ST
ARDMORE AVE
M
EADO
W
S AVE
19TH ST
RO
W
ELL AVE
OA
K AVE
ELM
AVE
HERRIN
ST
31ST ST
5TH ST
23RD ST
PO
INSETTIA AVE
3RD ST
MANHATTAN BEACH BLVD
VISTA DR
HARKNESS ST
21ST ST
ALM
A AVE
15TH ST
CREST DR
18TH ST
ARTESIA BLVD
1ST ST
17TH ST
36TH ST
35TH PL
36TH PL
DIANTHUS ST
30TH ST
31ST PL
29TH ST
33RD PL
24TH ST
BLANCHE R
D
4TH ST
W
ALNUT AVE
7TH ST
26TH ST
PINE AVE
20TH PL
MANHATTAN AVE
LAUREL AVE
GATES AVE
CEDAR W
AY
28TH ST
BAYVIEW
DR 34TH ST
JOHN PL
CURTIS AVE
W
END
Y W
Y
32ND ST
JO
HNSO
N ST
M
AG
N
O
LIA AVE
PARKVIEW AVE
NELSON AVE
33RD ST
12TH ST
11TH PL
M
AN
ZANITA LN
RUHLAND AVE
MATHEWS AVE
PAC
IFIC PL
DUNCAN PL
FAYM
O
NT AVE
13TH ST
CARLO
TTA W
AY
LYNNG
R
O
VE DR
VOORHEES AVE
3RD PL
PALM
AVE
4TH PL
JO
HN ST
DUNCAN AVE
KUHN DR
KEATS ST
5TH PL
16TH ST
BELL AVE
25TH ST
6TH PL
BOUNDARY PL
MAGNOLIA W
AY
HIGHVIEW
AVE
14TH ST
HERRIN
AVE
18TH PL
7TH PL
LARSSO
N ST
2ND PL
VILLAGE CIR
CEDAR AVE
8TH PL
21ST PL
41ST ST
38TH ST
1ST PL
44TH ST
TENNYSON ST
ANDERSO
N ST
9TH PL
FAIRWAY DR
MANOR DR
AG
NES RD
23RD PL
22ND ST
REDO
NDO
AVE
RONDA DR
20TH ST
AVIATION WY
14TH PL
HOMER ST
27TH PL
SAUSALITO CIR
MARINE PL
26TH PL
PAR
K PL
MORNINGSIDE DR
GATEWAY DR
FRANCISCO ST
SEAVIEW ST
AVIATIO
N PL
EL PORTO ST
10TH PL
VILLAG
E DR
12TH PL
ARDMORE WY
CENTER PL
25TH PL
VILLA ESCUELA
HALEY W
Y
27TH WAY
CATALINA CT
INGLESIDE DR
BERMUDA CT
MARIN CT
OA
K AVE
20TH ST
2ND ST
14TH ST
PINE AVE
33RD ST
23RD ST
PO
INSETTIA AVE
30TH ST
33RD PL
3RD ST
36TH ST
21ST ST
17TH ST
VOORHEES AVE
12TH ST
33RD ST
19TH ST
PECK AVE
18TH ST
28TH ST
15TH ST
REDO
NDO
AVE
BELL AVE
36TH PL
PALM
AVE
1ST ST
30TH ST
5TH ST
23RD ST
18TH ST
GATES AVE
26TH ST
15TH ST
18TH ST
17TH ST
JO
HN ST
5TH ST
M
APLE AVE
LAUREL AVE
4TH PL
19TH PL
6TH PL
15TH PL
16TH PL
14TH ST
17TH PL
2ND PL
8TH PL
40TH ST
45TH ST
39TH ST
43RD ST
42ND ST
PRO
SPECT AVE
38TH PL
KELP ST
GULL ST
CHESTNUT AVE
CHESTNUT AVE
CHABELA DR
SHELLEY ST
SHELL ST
34TH PL
34TH PL
34TH PL
34TH PL
12TH CT
MARINE PL
MARINE PL
26TH PL
30TH PL
30TH PL
30TH PL
30TH PL
32ND PL
32ND PL
32ND PL
32ND PL
MORNINGSIDE DR
W
ESTPO
RT
LONGFELLOW DR
LONGFELLOW DR
29TH PL
29TH PL
29TH PL
29TH PL
FLO
URNO
Y RD
FLO
URNO
Y RD
28TH PL
28TH PL
28TH PL
28TH PL
VILLAGE CENTER DR
M
AR
KET PL
10TH PL
10TH PL
10TH PL
PAR
K W
Y
FISHER AVE
DUNCAN DR
MOONSTONE ST
ALTURA WY
CHATHAM
GRANDVIEW
AVE
GRANDVIEW
AVE
GRANDVIEW
AVE
BRIDG
EPO
RT
24TH PL
24TH PL
24TH PL
24TH PL
ROSECRANS PL
M
ALAG
A W
Y
RAILR
O
AD PL
CARRIAG
E PL
EVERGREEN LN
11TH Pl
DEEGAN PL
LAUREL SQ
31ST WAY
13TH PL 13TH PL
12TH PL
25TH PL
TERRAZA PL
CHURCH ST
CAM
BRIDG
E
CAMINO CARDINELL
DOVER PL
MALAGA PLEMALAGA PLW
ARBO LADO CT
HOMER PL
HOMER PL INGLESIDE DR
STRATFO
RD
LAGUNA CT
BRYANT PL
CORONADO CT
CAYMAN CT
PAC
IFIC Pl
GRENADA CT
SANTA CRUZ CT
MONTEREY CT
NANTUCKET PL
TIBURON CTSANTA ROSA CT
PO
RTSM
O
UTH W
Y
CORDOBA CT
SAN MIGUEL CT
LAFAYETTE CT
8TH PL
7TH PL
13TH ST
17TH ST
PINE AVE
CREST DR
MARINE PL
1ST PL
BAYVIEW
DR
3RD ST
33RD PL
27TH ST
12TH PL
CREST DR
27TH PL
6TH ST
12TH ST
29TH ST
12TH ST
33RD PL
7TH PL
PACIFIC PL
35TH PL
31ST ST
14TH ST
CREST DR
23RD ST
VISTA DR
4TH PL
33RD ST
1ST PL
2ND PL
BAYVIEW
DR
31ST PL
35TH PL
1ST ST
ELM AVE
2ND PL
9TH PL
W
ALNUT AVE
10TH ST
8TH ST
MANHATTAN AVE
36TH PL
23RD PL
6TH PL
HOMER ST
5TH PL
9TH ST
25TH PL
MARINE AVE
22ND ST
3RD ST
36TH PL
11TH ST
18TH ST
35TH ST
11TH PL
5TH ST
12TH ST
CREST DR
35TH PL
11TH PL
MARINE PL
BAYVIEW
DR
CENTER PL
6TH ST
5TH PL
23RD PL
3RD PL
1ST PL
19TH ST
23RD PL
1ST PL
18TH ST
9TH PL
AG
NES RD
1ST ST
3RD PL
21ST ST
3RD ST
31ST PL
33RD PL BELL AVE
36TH PL
31ST PL
21ST PL
35TH PL
14TH ST
CURTIS AVE
31ST PL
25TH ST
23RD PL
³
0 1,200 2,400600
Feet
1" = 1200'
PROJECT NO: 1640901.10
DATE: September 2010
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Broken Pipe
Figure 8-4
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Location Identified with Broken Pipe
Legend
!(
#*
#*
COLLECTION SYSTEM CONDITION ASSESSMENT
8-11 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
8-2.4 REHABILITATION AND REPLACEMENT PRIORITIES
The purpose of CCTV inspections is to determine the condition of the City’s existing gravity sewers, and formulate a rehabilitation plan for the defective sewe rs. The defect scores and indexes provide a good indication as to which pipes are in poor condition, but cannot be relied upon solely to prioritize improvement projects. The priorities are selected primarily with consideration of the health and safety of the public and protection of the environment by minimizing the possibility of sanitary sewer overflows and leakage. The pipe capacity, location of particular defects, and the tributary areas/wastewater flow rates are other considerations used in formulating the final capital improvement project priorities.
The initial priorities for improvements to the sewers are based on the severity of the pipe defects. The six (6) categories utilized in this report are as follows:
a. Severe Condition
– This category primarily includes structur al defects of deformed pipe, hole in pipe, broken pipe, and large joint offsets.
b. Major Condition
– This category primarily includes structural defects of multiple fractures, medium joint offsets and major sags. Pipes with a large number of cracks are also included.
c. Moderate Condition
– Pipes in this category have fractures, cracks, small and medium joint offsets, and sags.
d. Minor Condition
– Pipes in this category have slight sags, cracks, and small joint offsets.
e. O&M
– This condition is for operational and maintenance problems and construction feature defects.
There are no structural defects.
f. No Defects
– This condition is for the pipe with no stru ctural, operation and maintenance or construction feature defects.
Figure 8-7 shows the dist ribution of the condition priorities assigned to the pipes with completed inspections.
Figure 8-8 shows the CCTV locations, color coded by rehabilitation/replacement priority.
The gravity pipe condition inspection summary, sorted by priority is shown in Appendix 5, Gravity Pipe Condition Inspection Summary. Planning level reco mmendations are included and are based upon the pipe defects reported in the CCTV Inspection Reports and review of select recordings. Actual improvements must be designed based upon further detailed review of each recording, taking into consideration other factors such as location, age and flow capacity of the pipe, existing utilities, and concurrent infrastructure construction projects. The initial priorities are given to the reaches with severe and major structural defects.
COLLECTION SYSTEM CONDITION ASSESSMENT
8-12 City of Manhattan Beach
Figure 8-7
CCTV Inspection Priorities
117 Reaches
22,073 ft
9.7%
41 Reaches
8,959 ft
3.9%
467 Reaches
94,705 ft
41.6%215 Reaches
43,580 ft
19.1%
205 Reaches
39,436 ft
17.3%
155 Reaches
18,961 ft
8.3%
Severe
Major
Moderate
Minor
O & M
No Deficiency
The
City of Manhattan Beach will address the “Severe” and “Major” collection system deficiencies. Table 8-2 lists the project priorities assigned to the 87 reaches of collection system identified as in “Severe” or “Major” condition, as well as planning level implementatio n costs based upon August 2010 dollars. The collection system construction estimates are based upon replacem ent at $45 per diameter inch per foot of pipe.
Implementation cost is determined by adding 35 percent of construction cost to cover engineering, inspection, and administration. The total estimated cost of upgrading the sewers with severe or major condition priorities is $15,330,000. This is based on the assessment of 43. 1 miles of pipe or 52.9 perce nt of the total gravity sewer system. Assuming that similar deficiencies w ill be identified when the rema inder of the system is CCTV inspected, the total cost for rehabilitati on and replacement of the remaining gravity sewer pipes is estimated at approximately $13,600,000.
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan !(
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#*
#*
#*
#*
#* #*
#*
#*
#*
#*
City of El Segundo
City of
Hawthorne
City of
Redondo
Beach
City of Hermosa
Beach
Pacific Ocean
Pier PS
LACSD PS
Palm
Ave PS
Pacific
Ave PS
Poinsetta
Ave PS
Meadows
Ave PS
Voorhees
Ave PS
Bell
Ave
PS
Civic
Center
PS
9TH ST
8TH ST
11TH ST
OCEAN DR
2ND ST
10TH ST
6TH ST
THE STRAND
VALLEY DR
HIGHLAND AVE
ROSECRANS AVE
AVIATION BLVD
MARINE AVE
SEPULVEDA BLVD
PACIFIC AVE
27TH ST
PECK AVE
35TH ST
ARDMORE AVE
MEADOWS AVE
19TH ST
ROWELL AVE
OAK AVE
ELM AVE
HERRIN ST
31ST ST
5TH ST
23RD ST
POINSETTIA AVE
3RD ST
MANHATTAN BEACH BLVD
VISTA DR
HARKNESS ST
21ST ST
ALMA AVE
15TH ST
CREST DR
18TH ST
ARTESIA BLVD
1ST ST
17TH ST
36TH ST
35TH PL
36TH PL
DIANTHUS ST
30TH ST
31ST PL
29TH ST
33RD PL
24TH ST
BLANCHE RD
4TH ST
WALNUT AVE
7TH ST
26TH ST
PINE AVE
20TH PL
MANHATTAN AVE
LAUREL AVE
GATES AVE
CEDAR WAY
28TH ST
BAYVIEW DR
34TH ST
JOHN PL
CURTIS AVE
WENDY WY
32ND ST
JOHNSON ST
MAGNOLIA AVE
PARKVIEW AVE
NELSON AVE
33RD ST
12TH ST
11TH PL
MANZANITA LN
RUHLAND AVE
MATHEWS AVE
PACIFIC PL
DUNCAN PL
FAYMONT AVE
13TH ST
CARLOTTA WAY
LYNNGROVE DR
VOORHEES AVE
3RD PL
PALM AVE
4TH PL
JOHN ST
DUNCAN AVE
KUHN DR
KEATS ST
5TH PL
16TH ST
BELL AVE
25TH ST
6TH PL
BOUNDARY PL
MAGNOLIA WAY
HIGHVIEW AVE
14TH ST
HERRIN AVE
18TH PL
7TH PL
LARSSON ST
2ND PL
VILLAGE CIR
CEDAR AVE
8TH PL
21ST PL
41ST ST
38TH ST
1ST PL
44TH ST
TENNYSON ST
ANDERSON ST
9TH PL
FAIRWAY DR
MANOR DR
AGNES RD
23RD PL
22ND ST
REDONDO AVE
RONDA DR
20TH ST
AVIATION WY
14TH PL
HOMER ST
27TH PL
SAUSALITO CIR
MARINE PL
26TH PL
PARK PL
MORNINGSIDE DR
GATEWAY DR
FRANCISCO ST
SEAVIEW ST
AVIATION PL
EL PORTO ST
10TH PL
VILLAGE DR
12TH PL
ARDMORE WY
CENTER PL
25TH PL
VILLA ESCUELA
HALEY WY
27TH WAY
CATALINA CT
INGLESIDE DR
BERMUDA CT
MARIN CT
OAK AVE
20TH ST
2ND ST
14TH ST
PINE AVE
33RD ST
23RD ST
POINSETTIA AVE
30TH ST
33RD PL
3RD ST
36TH ST
21ST ST
17TH ST
VOORHEES AVE
12TH ST
33RD ST
19TH ST
PECK AVE 18TH ST
28TH ST
15TH ST
REDONDO AVE
BELL AVE
36TH PL
PALM AVE
1ST ST
30TH ST
5TH ST
23RD ST
18TH ST
GATES AVE
26TH ST
15TH ST
18TH ST
17TH ST
JOHN ST
5TH ST
MAPLE AVE
LAUREL AVE
4TH PL
19TH PL
6TH PL
15TH PL
16TH PL
14TH ST
17TH PL
2ND PL
8TH PL
40TH ST
45TH ST
39TH ST
43RD ST
42ND ST
PROSPECT AVE
38TH PL
KELP ST
GULL ST
CHESTNUT AVE
CHESTNUT AVE
CHABELA DR
SHELLEY ST
SHELL ST
34TH PL
34TH PL
34TH PL
34TH PL
12TH CT
MARINE PL
MARINE PL
26TH PL
30TH PL
30TH PL
30TH PL
30TH PL
32ND PL
32ND PL
32ND PL
32ND PL
MORNINGSIDE DR
WESTPORT
LONGFELLOW DR
LONGFELLOW DR
29TH PL
29TH PL
29TH PL
29TH PL
FLOURNOY RD
FLOURNOY RD
28TH PL
28TH PL
28TH PL
28TH PL
VILLAGE CENTER DR
MARKET PL
10TH PL
10TH PL
10TH PL
PARK WY
FISHER AVE
DUNCAN DR
MOONSTONE ST
ALTURA WY
CHATHAM
GRANDVIEW AVE
GRANDVIEW AVE
GRANDVIEW AVE
BRIDGEPORT
24TH PL
24TH PL
24TH PL
24TH PL
ROSECRANS PL
MALAGA WY
RAILROAD PL
CARRIAGE PL
EVERGREEN LN
11TH Pl
DEEGAN PL
LAUREL SQ
31ST WAY
13TH PL
13TH PL
12TH PL
25TH PL
TERRAZA PL
CHURCH ST
CAMBRIDGE
CAMINO CARDINELL
DOVER PL
MALAGA PLE
MALAGA PLW
ARBO LADO CT
HOMER PL
HOMER PL
INGLESIDE DR
STRATFORD LAGUNA CT
BRYANT PL
CORONADO CT
CAYMAN CT
PACIFIC Pl
GRENADA CTSANTA CRUZ CT
MONTEREY CT
NANTUCKET PL
TIBURON CT
SANTA ROSA CT
PORTSMOUTH WY
CORDOBA CT
SAN MIGUEL CTLAFAYETTE CT
8TH PL
7TH PL
13TH ST
17TH ST
PINE AVE
CREST DR
MARINE PL
1ST PL
BAYVIEW DR
3RD ST
33RD PL
27TH ST
12TH PL
CREST DR
27TH PL
6TH ST
12TH ST
29TH ST
12TH ST
33RD PL
7TH PL
PACIFIC PL
35TH PL
31ST ST
14TH ST
CREST DR
23RD ST
VISTA DR
4TH PL
33RD ST
1ST PL
2ND PL
BAYVIEW DR
31ST PL
35TH PL
1ST ST
ELM AVE
2ND PL
9TH PL
WALNUT AVE
10TH ST
8TH ST
MANHATTAN AVE
36TH PL
23RD PL
6TH PL
HOMER ST
5TH PL
9TH ST
25TH PL
MARINE AVE
22ND ST
3RD ST
36TH PL
11TH ST
18TH ST
35TH ST
11TH PL
5TH ST
12TH ST
CREST DR
35TH PL
11TH PL
MARINE PL
BAYVIEW DR
CENTER PL
6TH ST
5TH PL
23RD PL
3RD PL
1ST PL
19TH ST
23RD PL
1ST PL
18TH ST
9TH PL
AGNES RD
1ST ST
3RD PL
21ST ST
3RD ST
31ST PL
33RD PL
BELL AVE
36TH PL
31ST PL
21ST PL
35TH PL
14TH ST
CURTIS AVE
31ST PL
25TH ST
23RD PL
³
0 1,200 2,400600
Feet
1" = 1200'
PROJECT NO: 1640901.10
DATE: September 2010
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Gravity Sewer
Condition Priorities
Figure 8-8
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
CCTV Inspection Location
Legend
!(
#*
#*
Gravity Sewer Condition Priorities
Severe Condition
Major Condition
Moderate Condition
Minor Condition
O&M Condition
No Defects
COLLECTION SYSTEM CONDITION ASSESSMENT
8-19 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
8-2.5 FOLLOW-UP CCTV INSPECTION AND CONDITION ASSESSMENT PROGRAM
a. Portions of the system rated to be in Severe Structural Deficiency condition will be inspected annually and evaluated to determine if immediate corrective action is needed.
b. Portions of the system rated to be in Major Structural Deficiency condition will be CCTV inspected and evaluated once every three (3) years
c. Portions of the system rated to be in Moderate Structural Deficiency condition will be CCTV inspected and evaluated once every five (5) years
d. Portions of the system rated to be in Minor Structural Deficiency condition will be CCTV inspected and evaluated once every ten (10) years
e. Portions of the system with no structural deficiencies will be CCTV inspected and evaluated once every ten (10) years
f. Portions of the system with Operational and Maintenance deficiencies, except the Hot Spots, will be CCTV inspected and evaluated once every four (4) years.
g. Hot Spots , except siphons, will be CCTV inspected and evaluated before and after each maintenance activity and cleaning for one year to establish the appropriateness of the method, and then annually.
As structural deficiency mitigation projects are implemented, their condition will be reclassified, and they will be included in the appropriate category for follow up CCTV inspection and condition assessment work.
8-3 MANHOLE INSPECTIONS AND ASSESSMENTS
The condition of the manholes associated with the 52.9 m iles of gravity pipes inspected was also assessed.
A total of 1,075 manholes were inspected and assessed. Photos were taken of each element of the manholes and inspection reports were prepared.
The manhole inspections included general evaluations of the following elements:
Manhole Cover
Frame
Cone
Barrel
Rungs
Bench
Channel
Each element was rated as good, fair, poor, or failing. Signs of debris, grease, vermin, and odors were also noted in the inspection reports. The results of the inspections are summarized in Table 8-3.
COLLECTION SYSTEM CONDITION ASSESSMENT
8-20 City of Manhattan Beach
Table 8-3
Manhole Elements Condition Summary
Condition
Manhole Cover
Frame
Cone
Barrel / Wall
Rungs
Bench
Channel
Debris
Grease
Vermin
Odor
Good 1070 1068 1030 1048 612 1022 960
F a i r 73 72 2 1 5 53 89 5
P o o r 7 4 1 5 01 52 0
Failing 1 1 67
Broken 2
Cracked 3
Not Applicable 91
Yes 15 55 3
No 1060 1075 1020 1072
8-3.1 Rehabilitation Priorities
Point values were assigned to each condition rating in order to prioritize the manholes for rehabilitation. The assigned point values are as follows:
Condition Rating Point Value
Good 0
Fair 1
Poor 5*
Failing 10*
Broken 10
Crack 8
Yes 1
No 0
*For Rungs, Failing is given a point value of 3 and Poor is given a point value of 2 Rungs are not considered as urgent a problem since th e City no longer uses them to access manholes. If City staff must enter a sewer manhole, tripods are utilized. The detailed manhole condition inspection summary, sorted by priority can be found in Appendix 6, Manhole Condition Inspection Summary. Manhole locations colored by total point value are shown on Figure 8-9.
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan !(
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#*
#*
#*
#*
#* #*
#*
#*
#*
#*
City of El Segundo
City of
Hawthorne
City of
Redondo
Beach
City of Hermosa
Beach
Pacific Ocean
Pier PS
LACSD PS
Palm
Ave PS
Pacific
Ave PS
Poinsetta
Ave PS
Meadows
Ave PS
Voorhees
Ave PS
Bell
Ave
PS
Civic
Center
PS
9TH ST
8TH ST
11TH ST
OCEAN DR
2ND ST
10TH ST
6TH ST
THE STRAND
VALLEY DR
HIGHLAND AVE
ROSECRANS AVE
AVIATION BLVD
MARINE AVE
SEPULVEDA BLVD
PACIFIC AVE
27TH ST
PECK AVE
35TH ST
ARDMORE AVE
MEADOWS AVE
19TH ST
ROWELL AVE
OAK AVE
ELM AVE
HERRIN ST
31ST ST
5TH ST
23RD ST
POINSETTIA AVE
3RD ST
MANHATTAN BEACH BLVD
VISTA DR
HARKNESS ST
21ST ST
ALMA AVE
15TH ST
CREST DR
18TH ST
ARTESIA BLVD
1ST ST
17TH ST
36TH ST
35TH PL
36TH PL
DIANTHUS ST
30TH ST
31ST PL
29TH ST
33RD PL
24TH ST
BLANCHE RD
4TH ST
WALNUT AVE
7TH ST
26TH ST
PINE AVE
20TH PL
MANHATTAN AVE
LAUREL AVE
GATES AVE
CEDAR WAY
28TH ST
BAYVIEW DR
34TH ST
JOHN PL
CURTIS AVE
WENDY WY
32ND ST
JOHNSON ST
MAGNOLIA AVE
PARKVIEW AVE
NELSON AVE
33RD ST
12TH ST
11TH PL
MANZANITA LN
RUHLAND AVE
MATHEWS AVE
PACIFIC PL
DUNCAN PL
FAYMONT AVE
13TH ST
CARLOTTA WAY
LYNNGROVE DR
VOORHEES AVE
3RD PL
PALM AVE
4TH PL
JOHN ST
DUNCAN AVE
KUHN DR
KEATS ST
5TH PL
16TH ST
BELL AVE
25TH ST
6TH PL
BOUNDARY PL
MAGNOLIA WAY
HIGHVIEW AVE
14TH ST
HERRIN AVE
18TH PL
7TH PL
LARSSON ST
2ND PL
VILLAGE CIR
CEDAR AVE
8TH PL
21ST PL
41ST ST
38TH ST
1ST PL
44TH ST
TENNYSON ST
ANDERSON ST
9TH PL
FAIRWAY DR
MANOR DR
AGNES RD
23RD PL
22ND ST
REDONDO AVE
RONDA DR
20TH ST
AVIATION WY
14TH PL
HOMER ST
27TH PL
SAUSALITO CIR
MARINE PL
26TH PL
PARK PL
MORNINGSIDE DR
GATEWAY DR
FRANCISCO ST
SEAVIEW ST
AVIATION PL
EL PORTO ST
10TH PL
VILLAGE DR
12TH PL
ARDMORE WY
CENTER PL
25TH PL
VILLA ESCUELA
HALEY WY
27TH WAY
CATALINA CT
INGLESIDE DR
BERMUDA CT
MARIN CT
OAK AVE
20TH ST
2ND ST
14TH ST
PINE AVE
33RD ST
23RD ST
POINSETTIA AVE
30TH ST
33RD PL
3RD ST
36TH ST
21ST ST
17TH ST
VOORHEES AVE
12TH ST
33RD ST
19TH ST
PECK AVE 18TH ST
28TH ST
15TH ST
REDONDO AVE
BELL AVE
36TH PL
PALM AVE
1ST ST
30TH ST
5TH ST
23RD ST
18TH ST
GATES AVE
26TH ST
15TH ST
18TH ST
17TH ST
JOHN ST
5TH ST
MAPLE AVE
LAUREL AVE
4TH PL
19TH PL
6TH PL
15TH PL
16TH PL
14TH ST
17TH PL
2ND PL
8TH PL
40TH ST
45TH ST
39TH ST
43RD ST
42ND ST
PROSPECT AVE
38TH PL
KELP ST
GULL ST
CHESTNUT AVE
CHESTNUT AVE
CHABELA DR
SHELLEY ST
SHELL ST
34TH PL
34TH PL
34TH PL
34TH PL
12TH CT
MARINE PL
MARINE PL
26TH PL
30TH PL
30TH PL
30TH PL
30TH PL
32ND PL
32ND PL
32ND PL
32ND PL
MORNINGSIDE DR
WESTPORT
LONGFELLOW DR
LONGFELLOW DR
29TH PL
29TH PL
29TH PL
29TH PL
FLOURNOY RD
FLOURNOY RD
28TH PL
28TH PL
28TH PL
28TH PL
VILLAGE CENTER DR
MARKET PL
10TH PL
10TH PL
10TH PL
PARK WY
FISHER AVE
DUNCAN DR
MOONSTONE ST
ALTURA WY
CHATHAM
GRANDVIEW AVE
GRANDVIEW AVE
GRANDVIEW AVE
BRIDGEPORT
24TH PL
24TH PL
24TH PL
24TH PL
ROSECRANS PL
MALAGA WY
RAILROAD PL
CARRIAGE PL
EVERGREEN LN
11TH Pl
DEEGAN PL
LAUREL SQ
31ST WAY
13TH PL
13TH PL
12TH PL
25TH PL
TERRAZA PL
CHURCH ST
CAMBRIDGE
CAMINO CARDINELL
DOVER PL
MALAGA PLE
MALAGA PLW
ARBO LADO CT
HOMER PL
HOMER PL
INGLESIDE DR
STRATFORD LAGUNA CT
BRYANT PL
CORONADO CT
CAYMAN CT
PACIFIC Pl
GRENADA CTSANTA CRUZ CT
MONTEREY CT
NANTUCKET PL
TIBURON CT
SANTA ROSA CT
PORTSMOUTH WY
CORDOBA CT
SAN MIGUEL CTLAFAYETTE CT
8TH PL
7TH PL
13TH ST
17TH ST
PINE AVE
CREST DR
MARINE PL
1ST PL
BAYVIEW DR
3RD ST
33RD PL
27TH ST
12TH PL
CREST DR
27TH PL
6TH ST
12TH ST
29TH ST
12TH ST
33RD PL
7TH PL
PACIFIC PL
35TH PL
31ST ST
14TH ST
CREST DR
23RD ST
VISTA DR
4TH PL
33RD ST
1ST PL
2ND PL
BAYVIEW DR
31ST PL
35TH PL
1ST ST
ELM AVE
2ND PL
9TH PL
WALNUT AVE
10TH ST
8TH ST
MANHATTAN AVE
36TH PL
23RD PL
6TH PL
HOMER ST
5TH PL
9TH ST
25TH PL
MARINE AVE
22ND ST
3RD ST
36TH PL
11TH ST
18TH ST
35TH ST
11TH PL
5TH ST
12TH ST
CREST DR
35TH PL
11TH PL
MARINE PL
BAYVIEW DR
CENTER PL
6TH ST
5TH PL
23RD PL
3RD PL
1ST PL
19TH ST
23RD PL
1ST PL
18TH ST
9TH PL
AGNES RD
1ST ST
3RD PL
21ST ST
3RD ST
31ST PL
33RD PL
BELL AVE
36TH PL
31ST PL
21ST PL
35TH PL
14TH ST
CURTIS AVE
31ST PL
25TH ST
23RD PL
³
0 1,200 2,400600
Feet
1" = 1200'
PROJECT NO: 1640901.10
DATE: September 2010
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Manhole Inspections
Figure 8-9
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Legend
!(
#*
#*
!(
!(
!(
!(
0 - 5
6 - 9
10 - 19
20 - 23
Manhole Inspection Priority Score
COLLECTION SYSTEM CONDITION ASSESSMENT
8-22 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan 8-3.2 Manhole Improvements
A total of thirty-two (32) manholes were identified to have poor conditions in the manhole cover, cone, barrel, bench, and/or channel. Preliminary recommendations are shown in Table 8-4.
The manhole rehabilitation cost estimates are based on the following:
Replacement $30,000
Line Manhole $10,000
Repair Mortar $ 6,000
Replace Frame and Cover $ 3,500
The total estimated cost of upgrading the manholes with poor conditions is $316,000. This is based on the assessment 1,075 manholes or 53 percent of all the manhol es. The total number of manholes in the sewer system is estimated at 2,031. Assuming that similar deficiencies will be identified when the remainder of the system is CCTV inspected, the total remaining cost for rehabilitation and replacement of the manholes in poor condition is estimated at approximately $280,000.
COLLECTION SYSTEM CONDITION ASSESSMENT
Table 8-4
Manhole Rehabilitation and Replacement Recommendations and Cost Estimates
Inspection
Phase
Se ssion
ID Street Manhole
Inspection
Date Surface Condition
Manhole Cover
Frame
Cone
Barrel / Wall
Rungs
Bench
Channel
Debris
Grease
Vermin
Odor
Priority Score
Condition RankingComment Recommendation
Project
Cost ($)
1 25 HIghland Ave 19-015 1/12/09 Pavement - Concrete Collar Good Good Failing Failing Good Good Good No No No No 24 1 Fractures in cone and barrel. Fracture seen in
street pavement surrounding manhole cover. Replace 30,000 1 28 1st St 01-080 11/21/08 Pavement - Concrete Collar Good Good Poor Poor Failing Poor Poor No No 0 No 22 2 Missing mortar. Corrosion at bench and channel. Line manhole 10,000 1 74 Duncan Ave 10-039 12/19/08 Pavement - Concrete Collar Good Good Good Good Failing Poor Poor No No No No 18 3 Corrosion at bench and channel. Line manhole 10,000 1 90 Gates Ave 01-072 11/20/08 Pavement - Concrete Collar Good Good Poor Fair Poor Poor Poor No Yes 0 Yes 15 4 Corrosion at bench and channel. Line manhole 10,000 1 51 Curtis Ave 05-052 12/2/08 Pavement - Concrete Collar Broken Good Good Good Poor Poor Poor No No No No 14 5 Broken manhole cover. Corrosion at bench and
channel.
Replace manhole
cover and line 13,500
1 36 2nd St 01-086 11/24/08 Pavement - Concrete Collar Good Good Good Good Poor Poor Poor Yes No 0 No 11 6 Corrosion at bench and channel. Line manhole 10,000 1 109 18th St 06-244 12/5/08 Pavement - Concrete Collar Good Good Good Good Poor Poor Poor No No No No 10 7 Corrosion at bench and channel. Line manhole 10,000 1 23 8th St 04-054 12/1/08 Pavement - Concrete Collar Good Good Good Good Poor Poor Poor No No No No 10 8 Corrosion at bench and channel. Line manhole 10,000 1 50 Meadows Ave 05-023 12/2/08 Pavement - Concrete Collar Good Good Good Good Poor Poor Poor No No No No 10 9 Corrosion at bench and channel. Not a smooth
transition. Line manhole 10,000
1 130 14th St 06-191 12/8/08 Pavement - Concrete Collar Good Good Good Good Poor Poor Poor No No No No 10 10 Corrosion at bench and channel. Line manhole 10,000 1 291 Cedar Way 25-012 1/22/09 Pavement - Concrete Collar Good Good Poor Poor Poor Good Good No No No No 10 11 Corrosion and cracking in cone and wall Line manhole 10,000 1 293 Village Dr 25-025 1/22/09 Pavement - Concrete Collar Good Good Poor Poor Poor Good Good No No No No 10 12 Corrosion in cone and barrel. Line manhole 10,000 1 53 Rowell Ave 05-055 12/2/08 Pavement - Concrete Collar Broken Good Good Good Fair Good Good No No No No 9 13 Broken manhole cover.
Replace manhole
cov er 3,500
1 47 Tennyson St 05-020 12/2/08 Pavement - Concrete Collar Good Good Good Good Poor Fair Poor No No No No 9 14 Corrosion at channel. Line manhole 10,000 1 60 Voorhees Ave 05-005 12/2/08 Pavement - Concrete Collar Good Good Good Good Poor Fair Poor No No No No 9 15 Corrosion at channel. Line manhole 10,000 1 181 Flournoy Rd 17-057 1/8/09 Pavement - Concrete Collar Good Good Good Good Fair Poor Poor No No No No 9 16 Corrosion at bench and channel. Line manhole 10,000 1 46 11th St 09-028 12/18/08 Pavement - Concrete Collar Good Good Good Good Good Poor Poor No No Yes No 9 17 Corrosion at bench and channel. Line manhole 10,000 2 235 The Strand 12-030A 7/20/09 Pavement - Concrete Collar Good Good Good Poor Poor Good Fair No No No No 9 18 Missing mortar. Repair mortar 6,000 1 80 14th St 06-050 12/4/08 Pavement - Concrete Collar Good Good Good Good Good Poor Poor No No No No 8 19 Corrosion at bench and channel. Line manhole 10,000 1 131 14th St 06-077 12/8/08 Pavement - Concrete Collar Good Good Good Good Good Poor Poor No No No No 8 20 Corrosion at bench and channel. Line manhole 10,000 1 178 31st St 17-053 1/8/09 Pavement - Concrete Collar Good Good Good Good Good Poor Poor No No No No 8 21 Corrosion at channel. Line manhole 10,000 1 99 Manhattan Ave 11-116A 12/22/08 Pavement - Concrete Collar Good Good Poor Good Poor Good Good No No No No 8 22 Cracks in cone. Line manhole 10,000 3 25 35th Pl 17-049 8/11/09 Pavement - Concrete Collar Good Good Good Good Fair Fair Poor No No 0 No 8 23 Corrosion at bench and channel. Line manhole 10,000 1 284 The Strand 14-064 1/21/09 Pavement - Concrete Collar Cracked Good Good Good N/A Good Good No No No No 7 24 Cracked manhole cover.
Replace manhole
cov er 3,500
1 119 19th St 06-030 12/5/08 Pavement - Concrete Collar Good Good Good Good Good Fair Poor No No No No 7 25 Corrosion at channel. Line manhole 10,000 1 205 Blanche Rd 17-040 1/9/09 Pavement - Concrete Collar Good Good Good Good Fair Good Poor No No No No 7 26 Corrosion at channel. Line manhole 10,000 1 26 1st St 01-061 11/21/08 Pavement - Concrete Collar Good Good Good Good Fair Good Poor No No 0 No 7 27 Corrosion at channel. Line manhole 10,000 1 143 Marine Ave 15-053 1/7/09 Pavement - Concrete Collar Good Good Poor Good Fair Good Good No No No No 7 28 Missing mortar and possibly bricks. Repair mortar 6,000 1 87 Highview Ave 11-040 12/22/08 Pavement - Concrete Collar Good Good Good Good Poor Good Good Yes No No No 7 29 Cracks in cone. Line manhole 10,000 2 191 1st St 12-026 7/16/09 Pavement - Concrete Collar Good Good Good Good Good Poor Fair No No No No 7 30 Corrosion at bench and channel. Line manhole 10,000 2 278 3rd St 10-139 7/22/09 Pavement - Concrete Collar Cracked Good Good Good Good Good Good No No No No 7 31 Cracked manhole cover.
Replace manhole
cov er 3,500
1 100 Manhattan Ave 11-117 12/22/08 Pavement - Concrete Collar Good Good Poor Good Good Good Good No No No No 6 32 Cracks in cone. Line manhole 10,000 Total 316,000
8-21
City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan
Wastewater Master Plan
City of Manhattan Beach SSMP
224
Appendix 8 – Wastewater Master Plan – Section 9, Operation and Maintenance
9-1 City of Manhattan Beach
R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan
SECTION 9
OPERATION AND MAINTENANCE
9-1 CCTV INSPECTION DATA
The operation and maintenance conditions of the gravity collection system pipes were considered separately.
Figures 9-1 thru 9-5 illustrate the loca tions of ball roots, grease, deposits, infiltration, and obstacles. These conditions, along with siphons, are the cause of many of the frequent maintenance areas (hot spots).
Table 9-1 provides listings of all the inspected reaches with a summary of the operation and maintenance issues, as well as recommendations for corrective measures. It is also noted whether or not these reaches are existing hot spots, or have had spills in the area within the past few years. The recommendations provided should be used in updating the operation and maintenance of the sy stem, the Hot Spot maintenance program, the cleaning program, as well as the Preventative Maintenance Program.
Any loss in cross sectional pipe area is a potential ca use of backups and sewer overflows. Therefore those maintenance issues that cause a reduction in cross se ctional area are given higher priority over others.
Accordingly, the highest priority is given to those reaches identified with ball ro ots. Ball roots are defined as roots that have formed a mass and in doing so are greatly to severe ly restricting the flow. The cross sectional area lost is greater than 50 percent.
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#*
#*
#*
#*
#* #*
#*
#*
#*#*
City of El Segundo
City of
Hawthorne
City of
Redondo
Beach
City of Hermosa
Beach
Pacific Ocean
Pier PS
LACSD PS
Palm
Ave PS
Pacific
Ave PS
Poinsetta
Ave PS
Meadows
Ave PS
Voorhees
Ave PS
Bell
Ave
PS
Civic
Center
PS
9TH ST
8TH ST
11TH ST
OCEAN DR
2ND ST
10TH ST
6TH ST
THE STRAND
VALLEY DR
HIGHLAND AVE
ROSECRANS AVE
AVIATIO
N BLVD
MARINE AVE
SEPULVEDA BLVD
PAC
IFIC AVE
27TH ST
PECK AVE
35TH ST
ARDMORE AVE
M
EADO
W
S AVE
19TH ST
RO
W
ELL AVE
OA
K AVE
ELM
AVE
HERRIN
ST
31ST ST
5TH ST
23RD ST
PO
INSETTIA AVE
3RD ST
MANHATTAN BEACH BLVD
VISTA DR
HARKNESS ST
21ST ST
ALM
A AVE
15TH ST
CREST DR
18TH ST
ARTESIA BLVD
1ST ST
17TH ST
36TH ST
35TH PL
36TH PL
DIANTHUS ST
30TH ST
31ST PL
29TH ST
33RD PL
24TH ST
BLANCHE R
D
4TH ST
W
ALNUT AVE
7TH ST
26TH ST
PINE AVE
20TH PL
MANHATTAN AVE
LAUREL AVE
GATES AVE
CEDAR W
AY
28TH ST
BAYVIEW
DR 34TH ST
JOHN PL
CURTIS AVE
W
END
Y W
Y
32ND ST
JO
HNSO
N ST
M
AG
N
O
LIA AVE
PARKVIEW AVE
NELSON AVE
33RD ST
12TH ST
11TH PL
M
AN
ZANITA LN
RUHLAND AVE
MATHEWS AVE
PAC
IFIC PL
DUNCAN PL
FAYM
O
NT AVE
13TH ST
CARLO
TTA W
AY
LYNNG
R
O
VE DR
VOORHEES AVE
3RD PL
PALM
AVE
4TH PL
JO
HN ST
DUNCAN AVE
KUHN DR
KEATS ST
5TH PL
16TH ST
BELL AVE
25TH ST
6TH PL
BOUNDARY PL
MAGNOLIA W
AY
HIGHVIEW
AVE
14TH ST
HERRIN
AVE
18TH PL
7TH PL
LARSSO
N ST
2ND PL
VILLAGE CIR
CEDAR AVE
8TH PL
21ST PL
41ST ST
38TH ST
1ST PL
44TH ST
TENNYSON ST
ANDERSO
N ST
9TH PL
FAIRWAY DR
MANOR DR
AG
NES RD
23RD PL
22ND ST
REDO
NDO
AVE
RONDA DR
20TH ST
AVIATION WY
14TH PL
HOMER ST
27TH PL
SAUSALITO CIR
MARINE PL
26TH PL
PAR
K PL
MORNINGSIDE DR
GATEWAY DR
FRANCISCO ST
SEAVIEW ST
AVIATIO
N PL
EL PORTO ST
10TH PL
VILLAG
E DR
12TH PL
ARDMORE WY
CENTER PL
25TH PL
VILLA ESCUELA
HALEY W
Y
27TH WAY
CATALINA CT
INGLESIDE DR
BERMUDA CT
MARIN CT
OA
K AVE
20TH ST
2ND ST
14TH ST
PINE AVE
33RD ST
23RD ST
PO
INSETTIA AVE
30TH ST
33RD PL
3RD ST
36TH ST
21ST ST
17TH ST
VOORHEES AVE
12TH ST
33RD ST
19TH ST
PECK AVE
18TH ST
28TH ST
15TH ST
REDO
NDO
AVE
BELL AVE
36TH PL
PALM
AVE
1ST ST
30TH ST
5TH ST
23RD ST
18TH ST
GATES AVE
26TH ST
15TH ST
18TH ST
17TH ST
JO
HN ST
5TH ST
M
APLE AVE
LAUREL AVE
4TH PL
19TH PL
6TH PL
15TH PL
16TH PL
14TH ST
17TH PL
2ND PL
8TH PL
40TH ST
45TH ST
39TH ST
43RD ST
42ND ST
PRO
SPECT AVE
38TH PL
KELP ST
GULL ST
CHESTNUT AVE
CHESTNUT AVE
CHABELA DR
SHELLEY ST
SHELL ST
34TH PL
34TH PL
34TH PL
34TH PL
12TH CT
MARINE PL
MARINE PL
26TH PL
30TH PL
30TH PL
30TH PL
30TH PL
32ND PL
32ND PL
32ND PL
32ND PL
MORNINGSIDE DR
W
ESTPO
RT
LONGFELLOW DR
LONGFELLOW DR
29TH PL
29TH PL
29TH PL
29TH PL
FLO
URNO
Y RD
FLO
URNO
Y RD
28TH PL
28TH PL
28TH PL
28TH PL
VILLAGE CENTER DR
M
AR
KET PL
10TH PL
10TH PL
10TH PL
PAR
K W
Y
FISHER AVE
DUNCAN DR
MOONSTONE ST
ALTURA WY
CHATHAM
GRANDVIEW
AVE
GRANDVIEW
AVE
GRANDVIEW
AVE
BRIDG
EPO
RT
24TH PL
24TH PL
24TH PL
24TH PL
ROSECRANS PL
M
ALAG
A W
Y
RAILR
O
AD PL
CARRIAG
E PL
EVERGREEN LN
11TH Pl
DEEGAN PL
LAUREL SQ
31ST WAY
13TH PL 13TH PL
12TH PL
25TH PL
TERRAZA PL
CHURCH ST
CAM
BRIDG
E
CAMINO CARDINELL
DOVER PL
MALAGA PLEMALAGA PLW
ARBO LADO CT
HOMER PL
HOMER PL INGLESIDE DR
STRATFO
RD
LAGUNA CT
BRYANT PL
CORONADO CT
CAYMAN CT
PAC
IFIC Pl
GRENADA CT
SANTA CRUZ CT
MONTEREY CT
NANTUCKET PL
TIBURON CTSANTA ROSA CT
PO
RTSM
O
UTH W
Y
CORDOBA CT
SAN MIGUEL CT
LAFAYETTE CT
8TH PL
7TH PL
13TH ST
17TH ST
PINE AVE
CREST DR
MARINE PL
1ST PL
BAYVIEW
DR
3RD ST
33RD PL
27TH ST
12TH PL
CREST DR
27TH PL
6TH ST
12TH ST
29TH ST
12TH ST
33RD PL
7TH PL
PACIFIC PL
35TH PL
31ST ST
14TH ST
CREST DR
23RD ST
VISTA DR
4TH PL
33RD ST
1ST PL
2ND PL
BAYVIEW
DR
31ST PL
35TH PL
1ST ST
ELM AVE
2ND PL
9TH PL
W
ALNUT AVE
10TH ST
8TH ST
MANHATTAN AVE
36TH PL
23RD PL
6TH PL
HOMER ST
5TH PL
9TH ST
25TH PL
MARINE AVE
22ND ST
3RD ST
36TH PL
11TH ST
18TH ST
35TH ST
11TH PL
5TH ST
12TH ST
CREST DR
35TH PL
11TH PL
MARINE PL
BAYVIEW
DR
CENTER PL
6TH ST
5TH PL
23RD PL
3RD PL
1ST PL
19TH ST
23RD PL
1ST PL
18TH ST
9TH PL
AG
NES RD
1ST ST
3RD PL
21ST ST
3RD ST
31ST PL
33RD PL BELL AVE
36TH PL
31ST PL
21ST PL
35TH PL
14TH ST
CURTIS AVE
31ST PL
25TH ST
23RD PL
³
0 1,200 2,400600
Feet
1" = 1200'
PROJECT NO: 1640901.10
DATE: September 2010
CITY OF MANHATTAN BEACH
WASTEWATER MASTER PLAN
Obstacles
Figure 9-5
Sewer Manholes
Manhattan Beach Sewage Pump Station
LACSD Sewage Pump Station
Manhattan Beach Forcemain
Manhattan Beach Sewer
LACSD Trunk Sewer
City Boundary
Location Identified with Obstacles
Legend
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#*
#*
#*
#*
#* #*
#*
#*
#*#*
City of El Segundo
City of
Hawthorne
City of
Redondo
Beach
City of Hermosa
Beach
Pacific Ocean
Legend
City Boundry
City Sewer
LACSD Trunk Sewer
LACSD Sewer Forcemain
LACSD Sewer Pump Station
City Sewer Pump Stations
#
#
Pier PS