Sewer System Management Plan

Transcription

1 Sewer System Management Plan

2 Sewer System Management Plan I. Goals II. III. IV. Organization Legal Authority Operation and Maintenance Program (Measures and Activities) V. Design and Performance Provisions (Design and Construction Standards) VI. Overflow Emergency Response Plan VII. FOG Control Program VIII. System Evaluation and Capacity Assurance Plan (Capacity Management) IX. Monitoring, Measurement, and Plan Modifications X. SSMP Audits XI. Communication Program Attachment A LACSD Organizational Chart Attachment B LACSD District Roster Note: Sections numbers are based on General Waste Discharge Requirements (GWDR) Order dated May 2, Page 2 of 77

3 TABLE OF CONTENTS SEWER SYSTEM MANAGEMENT PLAN A. Introduction.6 B. System Overview 6 C. Definitions, Acronyms, and Abbreviations...8 SECTION I: GOALS.12 A. Introduction...12 B. Regulatory Requirements for Goals Section.12 C. SSMP Goals..12 SECTION: II: ORGANIZATION...14 A. Introduction...14 B. Regulatory Requirements for Organization Section.14 C. Organization..14 Appendix II-A: District Staff with Area of Responsibility for SSMP.19 SECTION III: LEGAL AUTHORITY 20 A. Introduction...20 B. Regulatory Requirements for Legal Authority Section 20 C. Municipal Code.20 SECTION IV: OPERATION AND MAINTENANCE PROGRAM...24 A. Introduction...24 B. Regulatory Requirements for the Operation and Maintenance Program Section.24 C. Operation and Maintenance Program...25 Appendix IV-A: Standard Operating Procedures for Sewer Cleaning.28 Appendix IV-B: Major Sewer System Equipment...30 SECTION V: DESIGN AND PERFORMANCE PROVISIONS 35 A. Introduction...35 B. Regulatory Requirements for Design and Performance Provisions Section 35 C. Design Criteria..35 D. Construction Standards.35 SECTION VI: SANITARY SEWER OVERFLOW RESPONSE PLAN 37 A. Introduction...37 B. Regulatory Requirements for SSORP Section..38 C. Sanitary Sewer Overflow Response..39 D. SSO Response Procedure..40 Page 3 of 77

4 E. SSO Recovery and Cleanup Procedures...42 F. Water Quality Sampling and Testing 44 G. Public Notification 44 H. SSO Categories.46 I. SSO Documentation and Reporting..48 J. Equipment.51 K. Training.52 L. Contractors Working on District Sewer Facilities 53 M. Hazardous and Bio-hazardous Material Spill Procedures 53 N. Sewer Backup Claim Procedure O. Customer Relations Guidelines.55 P. Methods for Estimating Spill Volume..56 SECTION VII: FATS, OIL, GREASE (FOG) PROGRAM A. Introduction...60 B. Regulatory Requirements for FOG Control Section.60 C. Nature and Extent of FOG Program...61 SECTION VIII: SYSTEM EVALUATION AND CAPACITY ASSURANCE PLAN 64 A. Introduction...64 B. Regulatory Requirements for the System Evaluation and Capacity Assurance Plan Section.64 C. System Evaluation and Capacity Assurance Plan 65 SECTION IX: MONITORING, MEASUREMENT, AND PROGRAM MODIFICATIONS. 68 A. Introduction...68 B. Regulatory Requirements for Monitoring, Measurement, and Program Modifications Sections..68 C. Performance Measures..68 D. Baseline Performance...69 E. Performance Monitoring and Program Changes...69 F. Baseline Performance Data - Table SECTION X: SSMP PROGRAM AUDITS.. 70 A. Introduction...70 B. Regulatory Requirements for SSMP Program Audits Section.70 C. Audits 70 D. SSMP Updates..70 Page 4 of 77

5 SECTION XI: COMMUNICATION PLAN.. 74 A. Introduction.. 74 B. Regulatory Requirements for the Communication Program Section...74 C. Communicating Sanitary Sewer System Performance.74 Page 5 of 77

6 Sewer System Management Plan (SSMP) INTRODUCTION In May of 2006 the State Water Resources Control Board (SWRCB) adopted a General Waste Discharge Requirement (WDR) for all publicly owned sanitary sewer collection systems in California with more than one mile of sewer pipe. The goal of the WDR is to provide a consistent statewide approach for reducing the number and impact of Sanitary Sewer Overflows (SSOs). The SSMP is a planning document that describes the activities that the Lake Arrowhead Community Services District (District) uses to meet WDR requirements and manage the wastewater collection system effectively. The District, in its efforts to comply with the WDR, participates in the program and implements an SSMP, utilized expertise developed by the California Association of Sanitation Agencies. The District forerunner to the SSMP, the Capacity Management Operation and Maintenance (CMOM), was the starting point for the SSMP and has been refined over the past two decades to implement numerous processes and programs intended to better manage the collection system. Additionally the District now utilizes online reporting documents to inform the SWRCB of District SSO s. SYSTEM OVERVIEW The Sanitation District was officially formed in 1948 and was managed by San Bernardino County Special Districts Department. Prior to the Sanitation District being formed some local collection lines were installed dating back to the 1920 s. In 1983 the Lake Arrowhead Community Services District took over the management of the Sanitation District. In the 1960 s the District increased by 60% due to development. Since that time the growth in the rural area of the District has increased by approximately 1% each year. The District currently has 300 miles of public sewer, approximately 10,000 building service connections, and approximately 8,000 manholes. There are also 21 remote lift stations in the District, 18 that have standby generators that serve the lift station during power failures. The remaining 3 lift stations are small in size and are in low flow areas that can be served by trailer mounted generators equipped with quick connect couplers. The District has one siphon line. The average precipitation is 38 inches and generally occurs between November and April. As much as 95% of the precipitation can be in the form of snow. The average age of the collection system is approximately 63 years. The District has predominantly four types of pipes; they are poured in place concrete, clay, asbestos cement (AC), and plastic. The majority of the pipelines in the District range in size from 6 inch to Page 6 of 77

7 24 inch interceptors. The District currently only installs PVC pipe and slip-lining with HDPE or a cured in place liner. Approximately 25% of the District lines were installed between the 1920 s and 1950 s, prior to the introduction of modern pipe joints such as compression gaskets, which were not available until the 1960 s. These pipelines are poured in place concrete. The District has performed video inspection of approximately1/4 of these historic pipelines which indicate that the pipelines are still in serviceable condition. The District has had an active sewer system management program since the early 1980 s, and has experienced a reduction in line stoppages. Overflows are less frequent since that time. Stoppages and overflows have steadily declined since 1985 when the District focused its efforts on aggressive line cleaning, continuous video inspection, and dedicating funds to repair or replace line defects which could result in a service interruption. Roots and grease together cause about 85% of District stoppages; the remaining 15% is from other causes. These include mechanical lift station failures and vandalism. The District started to use root inhibitors in 2005 in an effort to control root growth within the pipelines and reduce line blockages. Lift station improvements have been on-going since the 1980 s and have resulted in a significant reduction in lift station failures. The District is situated in the San Bernardino Mountains at an approximate elevation of 5200 feet. The topography of the mountain range creates challenges for the District with the placement of the pipelines. These pipelines traverse across the mountain range and flow toward Lake Arrowhead. Existing soil conditions include decomposed granite and top soil enriched with organic material from the trees. The collection system s pipeline are installed and located in the ground water table and have extensive flow increases particularly during the rainy season. Inflow and Infiltration (I&I) contribution measured at the treatment plant can exceed twice the plant regular flow of 1.8 MGD. During extreme weather conditions the treatment plant has received flow in excess of 6 MGD. As a final note, the Lake Arrowhead Community Services District owns two treatment plants. The effluent water is discharged to percolation ponds at a District owned property located in Hesperia, California. Severe slope and grade changes within the collection system create additional challenges. The District s pipelines are installed at relatively shallow depths on or near bedrock. Approximately 30% of the collection system is located in inaccessible areas in easements where equipment cannot gain access to the pipelines. Pipeline depth averages between 3 and 8 feet as a result of the steep grade changes. Another challenge that the District must consider is ground movement caused by several active earthquake faults including the San Andreas. Frequent seismic movement and periodic earthquakes can crack pipes and loosen joints, particularly with the poured in place concrete lines. In a severe earthquake, major pipelines can be sheared and/or severely offset. Page 7 of 77

8 DEFINITIONS, ACRONYMS, and ABBREVIATIONS American Society for Testing and Materials (ASTM) American Water Works Association (AWWA) Base Water Flow (BWF) Best management Practices (BMP) Refers to procedures employed in commercial kitchens to minimize the quantity of grease that is discharged to the sanitary sewer system. Examples include scraping food scraps into garbage can and dry wiping dishes and utensils prior to washing. Calendar Year (CY) California Integrated Water Quality System (CIWQS) Refers to the State Water Resources Control Board online electronic reporting system that is used to report SSOs, certify completion of the SSMP, and provide information on sanitary sewer system. The electronic reporting requirement became effective on August 1, Capital Improvement Plan (CIP) Refers to the documents that support and identifies future capital improvements to the District s sanitary sewer system. Closed Circuit Television (CCTV) Refers to the process and equipment that is used to internally inspect the condition of gravity sewers within the collection system. County Health (CH) Refers to the San Bernardino County Environmental Health Services Department. District Refers to the communities within the Lake Arrowhead Community Services District boundaries. Fat, Oil, Grease (FOG) Refers to fats, oil, and grease typically associated with food preparation and cooking activities that can cause blockages in the sanitary sewer system. Fiscal Year (FY) Refers to the District s accounting timetable, July 1 through June 30 of every year. Food Service Establishment (FSE) Refers to commercial or industrial facilities where food is handled, prepared, and served that discharges to the sanitary sewer system. Page 8 of 77

9 Full Time Equivalent (FTE) Refers to the equivalent of 2,080 paid labor hours per year by a regular, temporary, or contract employee. General Waste Discharge Requirement (GWDR) Refers to the State Water Resources Control Board Order No , Statewide General Waste Discharge Requirements for Sanitary Sewer Systems, dated May 2, Geographical Information System (GIS) Refers to the District s system that is used to capture, store, analyze, and manage geospatial data associated with the District s sanitary sewer system assets. Global Positioning System (GPS) Refers to the handheld unit that is recommended to determine the longitude and latitude of sanitary sewer overflows for use in meeting CIWQS reporting requirements. Infiltration/Inflow (I&I) Refers to water that enters the sanitary sewer system from storm water and groundwater that increases the quantity of flow. Infiltration enters through defects in the sanitary sewer system after flowing through the soil. Inflow enters the sanitary sewer system without flowing through the soil. Typical points of inflow are holes in manhole lids and direct connections to the sanitary sewer (e.g. storm drains, area drains, and roof leaders). Lake Arrowhead Community Services District (LACSD) Lateral Refers to the piping that conveys sewage from a building to the District sewer system. Legal Responsible Official (LRO) Refers to the individual who has the authority to certify reports and other actions that are submitted through CIWQS. Million Gallons per Day (MGD) Monitoring, Measurement, and Plan Modifications (MMPM) Office of Emergency Services (OES) Refers to the California State Governor s Office of Emergency Services. Operation and Maintenance (O&M) Overflow Emergency Response Plan (OERP) For the purpose of this SSMP, this plan will be referred to as the Lake Arrowhead Community Services District Wastewater Overflow Response Plan or as the Sanitary Sewer Overflow Response Plan (SSORP). Polyvinylchloride Pipe (PVC) Page 9 of 77

10 Preventative Maintenance (PM) Refers to maintenance activities intended to prevent failures of the sanitary sewer system facilities (e.g. cleaning, CCTV, repair). Property Damage Overflow Refers to sewer overflow or backup that damages a property owner s premises. Property Line Cleanout Refers to the cleanout that is typically located at the building lateral near the edge of the right-of-way or property line. The property line cleanout is used to provide access to maintain the lower lateral. Rainfall Derived Infiltration and Inflow (RDI/I) Regional Water Quality Control Board (RWQCB) Refers to the Lahontan Regional Water Quality Control Board. Sanitary Sewer Overflows (SSOs) Refers to the overflow or discharge of any quantity of partially treated or untreated wastewater from the sanitary sewer system at any point upstream of the wastewater treatment plant. SSOs are typically caused by blockages, pipe failure, pump station failure, or capacity limitation. Sanitary Sewer System Refers to the portion of the sanitary sewer facilities that are owned and operated by the Lake Arrowhead Community Services District (District). Service Call Database Refers to the District s database that is used to track and analyze service calls and SSOs. Sewer System See Sanitary Sewer System. Sewer System Management Plan (SSMP) State Water Resources Control Board (SWRCB) Refers to the California Environmental Protection Agency (EPA) State Water Resources Control Board and staff responsible for protecting the State s water resources. Supervisory Control and Data Acquisition (SCADA) Refers to the system that is employed by the District to monitor the performance of its pump stations, treatment plants, and to notify the operating staff when there is an alarm condition that requires attention. System Evaluation and Capacity Assurance Plan (SECAP) Vitrified Clay Pipe (VCP) Page 10 of 77

11 Waters of the State Waters of the State means any water, surface or underground, including saline waters, within the boundaries of California. In case of a sewage spill, storm drains are considered to be waters of the State unless the sewage is completely contained and returned to sewer system. May also be referred to as surface water(s) or State waterway. Wastewater Service Call Report Refers to the District Wastewater Service Call Report in the event of an SSO. Page 11 of 77

12 SECTION I: GOALS Introduction This section of the SSMP formally states the goals of the SSMP. Regulatory Requirements for Goals Section The summarized requirements for the Goals section of the SSMP are: GWDR Requirement The collection system agency must develop goals to properly manage, operate, and maintain all parts of its wastewater collection system in order to provide adequate capacity to convey peak flows, reduce and prevent SSOs, as well as to mitigate any SSOs that occur. SSMP Goals This SSMP element identifies goals the District has set for the management, operation, and maintenance of the wastewater collection system and discusses the role of the SSMP in supporting these goals. These goals provide focus for the District staff to continue highquality work and to implement improvements in the management of the District s wastewater collection system. This section fulfills the Goals requirement of GWDR Element of the SSMP requirements. Goals Discussion The District s mission statement is To provide exceptional water and wastewater service, as we protect our water resources and preserve our environment. A key component to fulfilling that mission is to provide safe, responsive, and reliable wastewater service and to foster and maintain the District as a great place to live and raise a family. In support of this mission, the District has developed the following goals for the operation and maintenance of the wastewater collection system. These goals are also adopted by the District s Field Operations Division in the annual Operations and Maintenance program, which includes the wastewater collection system. This document outlines responsibilities, allocates staff hours to SSMP elements, and provides procedures and guidelines for maintenance and cleaning activities. 1. Continue to professionally manage, operate, and maintain all parts of the wastewater collection system. 2. Provide adequate capacity to convey peak flows to wastewater treatment facilities with a minimum of infiltration, inflow, and exfiltration. 3. Minimize the frequency of sanitary sewer overflows. Page 12 of 77

13 4. Mitigate the impact of sanitary sewer overflows. 5. Prevent public health hazards. 6. Protect the large investment in the collection system by maintaining adequate capacities and extending useful life. 7. Prevent unnecessary damage to public and private property. 8. Use funds available for wastewater operation and maintenance in the most efficient manner. 9. Perform all operations in a safe manner to avoid personal injury and property damage. 10. Communicate with the general public on all aspects of the wastewater collection system and the District s operations. Page 13 of 77

14 SECTION II: ORGANIZATION Introduction This section of the SSMP identifies District staff responsible for implementing this SSMP, responding to SSO events, and reporting SSOs. Regulatory Requirement The summarized requirements for the Organization section of the SSMP are: GWDR Requirements The collection system agency s SSMP must identify: a) The name of the responsible or authorized representative; b) The names and telephone numbers for management, administrative, and maintenance positions responsible for implementing specific measures in the SSMP program. Include lines of authority as shown in the organization chart or similar document with a narrative explanation; and c) The chain of communication for reporting SSOs; from receipt of 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, and/or State Office of Emergency Service (OES). Organization Reporting Structure The Lake Arrowhead Community Services District is a special district formed under the California Special district law, Government Code Section et seq. providing water and wastewater services for the communities of Lake Arrowhead, Blue Jay, Cedar Glen, Twin Peaks, Rim Forest, Arrowhead Villas, Crest Park, and Deer Lodge Park. These communities are located in the western San Bernardino Mountains of San Bernardino County. The Lake Arrowhead Community Services District is governed by a five-member popularly elected Board of Directors elected to four-year terms. The Board President and Vice-President are selected annually by the Board to serve a one-year term. The Board of Directors sets policy that directs the activities of the Management Team of the District. The General Manager of the District is appointed by the Board to oversee the activities of the District. Page 14 of 77

15 The District is managed by the General Manager, who overseas and directs the operation and maintenance activities of the District. The General Manager is the employee of the Board of Directors and reports directly to them. The District Engineer, Finance Manager, Operations Manager, and Field Operations Manager report to the General Manager. The District consists of 55 employees and they are assigned within the different departments of the District. The District Organization Chart is provided as Attachment A. The District Roster with the current employee names and contact information is identified as Attachment B. Description of General Responsibilities General Manager - Reports to the District s Board of Directors. Plans, organizes, directs, and supervises the public works activities of the District. Advises the District s Board of Directors on engineering and public works matters, including those related to the collection system. Oversees District and departmental budgets and Capital Improvement Project funding. Reviews project plans and specification for public works projects and performs technical engineering planning studies. Confers with engineering consultants and officials of other regulatory authorities on the regular business of the District. District Engineer - Supervises the Project Manager on public works projects, including wastewater projects. Prepares plans, specifications, and preliminary cost estimates. Coordinates and confers with Field Operations Department on sanitary sewer system issues. Confers with contractors, consultants, Board of Directors, and the public on engineering and construction matters. Prepares reports on wastewater and other public works projects. Finance Manager - Conducts all of the financial matters of the District. Prepares the District Budget, Capital Improvement Projects financing, annual State Audits, and manages the finance personnel at the District office. Confers with department managers and reports directly to the General Manager and Board of Directors. Operations Manager - Is responsible for implementing and maintaining the District SSMP Program and is the Legal Authority for the program. Submits and certifies to the appropriate government agencies. Field Operations Manager - Plans, organizes, and supervises the maintenance and repair of the District s collection system infrastructure and the District s water distribution system. Reviews plans and specifications for the wastewater collection system and water distribution system and makes recommendations regarding maintenance, construction, and operations aspects. Controls budget expenditures within the Field Operations Division. Confers with contractors, engineers, and member of the general public on construction and maintenance problems and procedures. Prepares reports for the Board of Directors and General Manager. Field Operations Supervisor - Wastewater - Supervises wastewater collection system maintenance and Field Operations workers in the cleaning and repair of the District collection system. Trains crew members in specific tasks as needed, including collection system preventive maintenance and SSO response. Schedules work assignments. Page 15 of 77

16 Maintains records of projects assigned and projects completed, supplies and equipment used and costs incurred. Investigates wastewater related complaints from the general public. Estimates needed equipment and equipment maintenance. Recommends and purchases parts and supplies required for the maintenance of the collection system. Field Operations Supervisor - Water - Supervises and, oversees the work of the Field Operations crew for the water distribution system. Lays out and schedules work for the crew. Checks work of assigned crew. Assumes responsibility for the maintenance crews in the absence of the Field Operations Supervisor-Wastewater. Sr. Field Operations Worker - Works as a member of an assigned crew as the crew leader. Cleans, unplugs, and repairs wastewater collection system pipelines. Locates and resets manhole covers. Is responsible for the safety of the work site in regards to traffic, confined space entry procedures, and proper utilization of tools and equipment. Operates the high velocity cleaning truck, rodder, CCTV truck, backhoe, and dump truck. Utilizes specialized equipment and tools used in the maintenance of the wastewater collection system. Field Operations Worker II - Works as a member of an assigned crew. Cleans, unplugs, and repairs wastewater collection system pipelines. Locates and resets manhole covers. Works at a journeyman level. Assume the responsibility of the work assignments in the absence of a Sr. Maintenance Worker. Is responsible for work site safety in regards to traffic, confined space entry procedures, and proper utilization of tools and equipment. Operates high velocity cleaning truck, rodder, CCTV truck, backhoe, and dump truck. Utilizes specialized equipment and tools used in the maintenance of the collection system. Field Operations Worker I - Works at an apprentice level position as a member of an assigned crew. Cleans, unplugs, and repairs wastewater collection system pipelines. Locates and raises manhole covers. Works as an apprentice level worker. Assists with work site safety in regards to traffic and confined space entry procedures. Uses tools and equipment under the direction of Maintenance Worker II. Operates high velocity cleaning truck, rodder, CCTV truck, and dump truck. The District follows a zone cleaning cycle. Each year of the five year rotation approximately 200,000 lineal feet are cleaned. The District has dedicated crews that are assigned to do preventative maintenance of the District s wastewater collections system pipelines. Crews are assigned to the cleaning of the collection system pipelines, pipe repairs, Closed Circuit TV inspections, raising of manholes, or marking of pipelines under the Underground Service Alert process. The lift station inspection and maintenance is performed through the Operations Department. Reporting Structure The four Department Managers report directly to the General Manager. The purpose is to ensure that the General Manager receives an unfiltered flow of information from all departments. In most cases, the Field Operations Department and the Engineering Department achieve consensus on the need for progress on various pipeline projects. However, in rare cases, the checks and balance system ensures that the General Manager has adequate information to ensure that service related problems are addressed in a timely manner. Page 16 of 77

17 Service Calls District offices are open Monday through Friday, 7:30 a.m. to 5:00 p.m. and all service calls are referred directly to the Field Operations Supervisor Water for water issues and the Field Operations Supervisor - Wastewater for collection system issues. The District uses the San Bernardino County Paging System to take emergency calls. The system then relays the message to the maintenance on-call employee by pager or phone. The on-call employee is required to respond to the call and makes the determination about the emergency, and, if necessary, summons additional maintenance staff to assist on the call. The Field Operations Department also requires that a supervisor is also on-call for the department to assist on calls if needed and to ensure that all calls are handled appropriately with State mandated reporting procedures. The ability of the police, fire department, or citizen to be able to talk to a live person 24 hours per day adds the positive benefits of human interaction, significantly reducing the possibility of a missed call or misunderstanding about the nature of a problem. The on-call employee and supervisor are each furnished with a District truck, cell phone, and pager. Service Calls/Sanitary Sewer Overflow Reporting The Lake Arrowhead Community Services District (LACSD) utilizes two communication centers. During normal business operations (Monday through Friday, 7:30 a.m. to 5:00 p.m.), calls are received by the District main office. During all other hours, the District uses the San Bernardino County Paging System. Note: For the purpose of the SSMP, both will be referred to as the District Communications system. Upon receiving the information, the Field Operations employee is immediately contacted. The Field Operations employee will evaluate the situation and determine if additional help is necessary. After hours, the Field Operations On-Call employee is contacted regarding any SSO emergency and must respond within 30 minutes or less. The Field Operations employee must notify the Field Operations Supervisor Wastewater if: Any Category 2 SSO or greater The SSO is over 1,000 gallons The SSO enters surface water or a drainage channel The SSO causes property damage or flooding in a home/business structure The SSO constitutes an imminent danger to the public or environment If the complainant requests a Supervisor, or there is a hostile environment By the next business day for any Category 3 SSO Page 17 of 77

18 The Field Operations employee completes a Wastewater Service Call Report for all SSOs. The report is forwarded to the Field Operations Supervisor Wastewater for investigation and/or follow-up work activities. Authorized Representative The District s Authorized Representative and Legally Responsible Official (LRO) in all wastewater collection system matters is the Field Operations Supervisor Wastewater. The Field Operations Supervisor Wastewater is authorized to submit electronic and written spill reports to the RWQCB, the County Health Agency and the Governor s Office of Emergency Services. The Field Operations Supervisor Water is the acting Field Operations Supervisor Wastewater and is authorized to act as the District s Authorized Representative in the Field Operations Supervisor Wastewater s absence. Responsibility for SSMP Development, Implementation, and Maintenance The District s Operations and Field Operations Managers have the responsibility for developing, implementing, periodically auditing, and maintaining the District s SSMP. They may delegate the responsibility for developing, implementing, periodically auditing, and maintaining portions of the District s SSMP to an appropriate staff member. Other District staff responsible for developing, implementing, and maintaining specific elements of the District SSMP, along with their job titles and contact information, are shown in Appendix II-A. SSO Reporting Chain of Communication The SSO Reporting Chain of Command follows the Organizational Chart. The SSO reporting process and responsibilities are described in detail in Section VI of the SSMP, Sanitary Sewer Overflow Response Plan. Page 18 of 77

19 Appendix II-A: District Staff with Area of Responsibility for SSMP Name Department/Title Area of Responsibility for SSMP Matt Brooks/Mike Blackwood District Operations & Field Operations Managers Goals Matt Brooks/Mike Blackwood Matt Brooks/Mike Blackwood Matt Brooks/Mike Blackwood District Operations & Field Operations Managers District Operations & Field Operations Manager District Operations & Field Operations Managers Organization Legal Authority Operations and Maintenance Program Aida Hercules District Engineer Design and Performance Provisions Matt/Brooks Mike District Operations & Sanitary Sewer Overflow Response Blackwood Field Operations Plan Managers Mica O Connell Field Operations FOG Control Program Supervisor Wastewater Aida Hercules District Engineer System Evaluation and Capacity Assurance Plan Matt Brooks/Mike District Operations & Monitoring, Measurement, and Blackwood Field Operations Program Modifications Matt Brooks/Mike Blackwood Matt Brooks/Mike Blackwood Managers District Operations & Field Operations Managers District Operations & Field Operations Manager SSMP Audits Communication Plan Page 19 of 77

20 SECTION III: LEGAL AUTHORITY Introduction This section of the SSMP discusses the District s Legal Authority, including the Lake Arrowhead Community Services District - Rules and Regulations. Regulatory Requirements for Legal Authority Section The summarized requirements for the Legal Authority section of the SSMP are: GWDR Requirement The wastewater collection system agency must demonstrate, through collection system use ordinances, service agreements, or other legal binding procedures, that it possesses the necessary legal authority to: a) Prevent illicit discharges into its wastewater collection 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 repair for portions of the lateral owned or maintained by the District; d) Limit the discharge of fats, oils, and grease and other debris that may cause blockages; e) Enforce any violations of its sewer ordinances f) Inspect grease producing dischargers; and g) Enforce sewer-related ordinances. District Code The Code of the District is described in the Lake Arrowhead Community Services District, Rules and Regulations for Water and Wastewater Service Section 3: General Provisions. The Lake Arrowhead Community Services District Rules and Regulations for Water and Wastewater Service describes the District s current legal authorities. The legal authorities provided by the Rules and Regulations for Water and Wastewater Service that address the regulatory requirements are summarized on Table III-A. Page 20 of 77

21 Authority The Lake Arrowhead Community Services District was formed in 1978 in conformance with the California Community Services District Law (California Governmental Code Section et seq.). Through application of law, the District is authorized to adopt ordinances, resolutions, and to otherwise adopt rules and regulations in order to control, administer, finance, operate and maintain water and wastewater systems within its jurisdiction area. These Rules and Regulations and associated technical standards and any amendments thereto shall be considered in effect by approval of the Board of Directors. The Ordinance passed by the Board of Directors shall be known and may be cited as Rules and Regulations for Water and Wastewater Service. Rules and Regulations - The District has Rules and Regulations that govern all aspects to the collection system. Some of the key components of the Rules and Regulations cover areas such as connection permitting, remolding of structures, types of waste prohibited in the collection system, grease trap and interceptor inspection, District Standards, tests and measurements, and septic tank system use. In 2005, the District initiated the Anti-Flooding Device Program. This program requires that all new service connections, building remodeling, and at risk properties of a potential wastewater backups install an ant-flooding device to protect the structure from flooding. Page 21 of 77

22 Table III-A: Summary of Legal Authority in the Lake Arrowhead Community Services District Rules and Regulations for Sewer Service Other Sources of Ordinances that support the Rules and Regulations for Sewer service Requirement Rules and Regulations Page # and Section # General Prevent illicit discharges into the wastewater collection system Limit the discharge of fats, oil, and grease and other debris that may cause blockages Require that sewers are connections be properly designed and constructed Require proper installation, testing, and inspection of new and rehabilitated sewers Laterals Clearly define District responsibilities and polices Ensure access for maintenance, inspection, or repair for portions of the service lateral owned or maintained by the District Control infiltration and Inflow (I&I) from private service laterals FOG Source Control Requirements to install grease removal devices (such as traps, interceptors), design standards for grease removal devices, maintenance requirements, BMP requirements, record keeping and reporting requirements Sec. 4.0 Page 1 of Drainage into Sewer Prohibited Sec.4.2.1, Sec Sec. 4.0 Page 4 of Fats, Waxes, Grease, or Oils Sec and Sec Sec. 3.0 Page 2 of District Standards Sec , Sec , Sec Sec. 3.0 Page 4 of Limits of Responsibility Sec , Sec , Sec , Sec , Sec Sec. 4.0 Page 2 of Drainage into Sewers Prohibited Sec , Sec Grease Control Plan Ordinance 46 Section 7: Installation and Maintenance Page Installation Sec , Sec , Sec , Sec , Sec , Sec , Sec Page Maintenance Sec , Sec , Sec , Sec , Sec Meets GWDR Requirements? Page 22 of 77 Yes Yes Yes Yes Yes Yes

23 Requirement Rules and Regulations Page # and Section # Authority to inspect grease producing facilities Enforcement Enforce any violation of its sewer ordinances Grease Control Plan Ordinance 46 Section 8: Inspection Page General Inspection, 8.2 Need for Corrective Action Sec , Sec Sec. 3.0 Page 5 of Penalty for Violation Page 126 Section 9: Violation, Enforcement, and Penalties All sections Meets GWDR Requirements? Yes Yes Page 23 of 77

24 SECTION IV: OPERATIONS AND MAINTENANCE PROGRAM Introduction This section of the Sewer System Management Plan (SSMP) is intended to provide an overview of the District s sewer system operations and maintenance program Regulatory Requirements for the Operations and Maintenance Program Section The requirement for the Operations and Maintenance Program section of the SSMP are: GWDR Requirements (Operations and Maintenance) The GWDR requirements for the Operations and Maintenance Program are: a. Maintain an up-to-date map of the sanitary sewer system, showing all gravity line segments, manholes, pumping facilities, pressure pipes and valves, and applicable storm water conveyance facilities. b. Describe routine preventive operations 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 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-term and long-term plans plus a schedule for the 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. e. Provide equipment and replacement part inventories, including identification of critical replacements parts. Page 24 of 77

25 Operations and Maintenance Program The majority of the SWRCB requirements for the Operations and Maintenance Program element of the SSMP are in agreement. The following presents the portions of the Operations and Maintenance Program that respond to the SWRCB requirements. The SWRCB requirements that are not satisfied by the response to SWRCB requirements follow at the end of this section. Collection System Maps The District maintains up-to-date CAD format base maps that identify wastewater collection system assets such as gravity line segments, manholes, pumping facilities, and pressure pipes (force mains). The CAD information is available to the appropriate District staff. Hard copies of CAD maps are provided to field crews. Crews are required to note corrections and updates. Updates are then submitted to the Field Operations Supervisor- Wastewater who forwards them to the District s Engineering Department. Maps are updated annually. The Graphical Information System (ArcGIS) mapping system is currently in the development stage. Once completed, the ArcGIS system will be linked to the Collection System Department Computer Maintenance Management System (Hansen). Preventive Operation and Maintenance The elements of the District s sewer system Operations and Maintenance Program include: Proactive, preventive, and corrective maintenance of gravity sewers CCTV inspections Rehabilitation and replacements of sewers that are in poor condition Periodic inspections and preventive maintenance for the pump stations The details of the District s Operations and Maintenance Program are: Gravity Sewers The District strives to clean its entire sewer system every five years, and it preventively cleans sewers with a history of problems every 1, 3, 6, or 12 months. District crews utilize CCTV inspection as a means of inspecting the sewer collection system to monitor changing conditions, make assessments, and follow-up on SSO events. District crews correct problems that are identified by CCTV and sewer cleaning crews. Repairs are completed in priority order. Repair and replacement projects are coordinated with the District s Engineering Department. The District repairs significant structural defects as they are identified. Page 25 of 77

26 Gravity sewers maintenance is currently scheduled using maps and lists of line segments identified as hotspots. Completed gravity sewer maintenance is recorded on field crew daily reports and log books. The District s standard operating procedure for sewer cleaning is included as Appendix IV-A. Pump Stations The District s Mechanical Maintenance field crews inspect the 21 lift stations on a weekly basis and lift station performance is monitored 24/7/365 using SCADA system. Rehabilitation and Replacement Program The District s goal is to inspect the condition of the sewer collection system on a routine basis. The information gathered during the condition assessment will be used to select individual gravity sewers for repair/rehabilitation/replacement. The District plans annual projects for rehabilitation and replacement of the sewer collection system. These projects are developed by the District s Engineering Department using field crew information reports and by areas that have been selected to be upgraded or replaced in the most recent Master Plan. The Master Plans are updated every five years. The funds that support the Capital Improvement Program come from the District s sewer fund. The sewer fund is an enterprise fund and sewer fees are established to meet project needs and support the Master Plan. Training The District conducts most of the training with in-house managers and supervisors. The training program is coordinated among the collections system, water distribution, plant operations, and physical plant maintenance departments. Each division trains on a weekly basis independently, and numerous cross training exercises related to emergency response during power outages and overflows are conducted. The District s training program is documented in the District Safety Manual. This manual consists of 20 sections of Standard Operating Procedures (SOP) for all related safety functions in the District. The District uses a combination of in-house classes, on the job training, conferences, seminars, and other opportunities to train its wastewater collection system staff. Specific training is provided in confined space entry and rescue, competent person in trench and shoring, asbestos concrete pipe work practices, CPR and first aid, blood borne pathogens, and Hazardous Waste Operations and Emergency Response at Uncontrolled Hazardous Waste Sites. Collection workers also participate in the CWEA programs and vendor sponsored training courses. Page 26 of 77

27 Replacement Parts The District s replacement parts are stored at the Field Operations facility. The District stocks repair pipe and clamps to accommodate all pipes contained within the District s infrastructure. Most of the District s pump stations are equipped with three pumps to allow one pump to be offline for repair or maintenance. The District s mechanical maintenance field staff rebuild or replace pumps based on preventative maintenance records. For the stations that only have two pumps the District maintains communications with manufactures to ensure replacement pumps are available in a timely manner. The District has several by-pass pumps in various sizes that can be used for by-pass pumping in an emergency condition. Operation and Maintenance Resources The District staff that are dedicated to the maintenance of the wastewater collection system facilities are shown on Table IV-1. The major equipment to support the maintenance activities is included in Appendix IV-B. The staff and equipment resources meet the projected workload. Table IV-1: Collection System Maintenance Resources Position Full Time Employees Field Operations Manager.5 Field Operations Supervisor Wastewater 1.0 Sr. Maintenance Worker 2.0 Maintenance Worker I/II 6.0 Total 9.5 The Field Operations Department is staffed with 16 employees. The District requires Field Operations employees be cross-trained in both water and wastewater and certified in Wastewater Collection System Maintenance and as a Water Distribution Operator. Certification is issued by the California Water Environment Association and the State of California Department of Health Services, respectively. Under emergency conditions the Field Operations Department has the flexibility to move all of its personnel to either discipline. Outreach to Sewer Service Contractors The District utilizes the District s Bi-Monthly Board Meetings, District web page, and the local newspaper to notify the customers and the contractors of projects and general information regarding the District. In the event of special circumstance the District will host meetings with the contractors and plumbers to inform them of changes, policies, and ordinances that could potentially impact their work on the District s sanitary sewer system. Page 27 of 77

28 Appendix IV-A Standard Operating Procedure for Sewer Cleaning Purpose The purpose of this Standard Operating Procedure is to ensure that sewer cleaning is performed in a manner that will produce a high quality work product and ensure that the sanitary sewers will not experience problems prior to their scheduled cleaning. Goal The goal of cleaning a sewer collection system is to restore the flow area to 95% of the original flow area of the pipe. Required Equipment and Tools 1. Personal protective equipment (including, but not limited to, hardhat, steel toe boots, gloves, eye/face protection, hearing protection) 2. Sewer collection system atlas 3. Proper temporary traffic control setup (including but not limited to safety cones, barricades, flags, signs or other traffic control devices) 4. Confined space equipment (including, but not limited to, Calibrated gas detector, tripod, harness, and ventilation blower) 5. Combo high-velocity cleaner/vacuum truck 6. High velocity cleaner 7. CCTV truck 8. Power sectional rodder 9. various sewer cleaning nozzles and root saws 10. Portable Push-Camera 11. Debris traps in various sizes 12. Manhole hook 13. Measuring wheel Required Forms Appropriate cleaning work order form Daily vehicle inspection report form(dvir) SSO response form Procedures for Sewer Cleaning Crew Prior to Leaving the Yard 1. Plan the work so that it starts in the upstream portion of the area and move downstream. 2. Whenever possible, plan to clean sewers from the downstream manhole. 3. Inspect all sewer cleaning equipment for wear. Replace any excessively worn items. Page 28 of 77

29 At the Jobsite 1. Wear proper personal protective equipment (PPE). 2. Utilize District hydrants for water necessary to perform cleaning. 3. Determine and confirm location of upstream and downstream manholes (use street address if possible). 4. Look for any overhead utilities that may come into contact with vacuum boom during the cleaning operation. 5. Set up proper traffic control by placing traffic signs, flag, cones, and other traffic control devices. 6. Move the cleaning unit into the traffic control so that the hose reel or sectional rodder is positioned over the manhole. 7. Use the gas detector to determine if it is safe to proceed with the cleaning operation, then open the manhole. 8. Install the proper sewer cleaning nozzle or root saw on the hose or sectional rodder. Cleaning Operation 1. Insert the debris trap. 2. Start the auxiliary engine or engage the PTO. 3. Lower the hose or rod, with guide or roller to protect the hose, into the manhole and direct it into the sewer to be cleaned 4. Start the high pressure pump and set engine speed to provide adequate pressure for the sewer cleaning operation. 5. Open the water valves and allow the hose to proceed up the sewer. The hose speed should not exceed 60 feet per minute. 6. Allow the hose to proceed 25% of the length of the sewer (or 50 feet minimum) and pull the hose back. 7. Observe the nature and the quantity of debris pulled back to the manhole 8. If there is little or no debris, allow the hose to proceed to the upstream manhole. 9. If there is moderate to heavy debris, clean the remaining portion of the sewer in 25% segments not to exceed 50 feet at a time. 10. Open the upstream manhole and verify that nozzle or rod is at or past the manhole. 11. The sewer is adequately cleaned when: Successive passes with a cleaning nozzle or rod do not produce any additional debris, and The sewer is able to pass a full size, six-wire ( proofer ) for its entire length 12. Determine the nature and quality of the debris removed during cleaning operation. Use the daily cleaning report to record the nature and quantity of debris removed. 13. Remove the debris from the manhole using the vacuum unit or clam shell debris removal tool. 14. Rewind the hose on the reel or retrieve the sectional rood back into the cage 15. Remove the debris trap. Page 29 of 77