City of Modesto Utilities Department Sanitary Sewer Management Plan

Transcription

1 City of Modesto Utilities Department Sanitary Sewer Management Plan (SSMP) Updated November 2014

2 Executive Summary DATE ISSUED: DATE REVISED: WASTEWATER COLLECTIONS APPROVED BY: Robert Englent The State Water Resources Control Board (State Water Board) has, by Order No , required public agencies that own or operate sanitary sewer systems to develop and implement a Sewer System Management Plan (SSMP) aimed at reducing sanitary sewer overflows (SSOs). The State Water Board has also, by Order No. WQ EEC, created a specific Monitoring and Reporting Program (MRP), which requires agencies to electronically report all SSOs to the Board and notify the California Office of Emergency Services (Cal OES). The SSMP is created to facilitate proper funding and management of the sanitary sewer system. The City of Modesto SSMP must include provisions to provide proper and efficient management, operation, and maintenance of the sanitary sewer system, while taking into consideration risk management and cost benefit analysis. The SSMP addresses each of the 11 elements summarized below: Goals Organization Legal Authority Operation and Maintenance Program Design and Performance Provisions Overflow Emergency Response Plan FOG Control Program System Evaluation and Capacity Assurance Plan Monitoring, Management and Plan Modifications SSMP Program Audits Communication Program Page 1 of 1

3 I. GOAL DATE ISSUED: DATE REVISED: WASTEWATER COLLECTIONS APPROVED BY: Robert Englent The goal of the SSMP is to provide the City of Modesto with a plan and schedule to properly manage, operate, and maintain all parts of the wastewater collections system. It is the goal of the Wastewater Collection Division to: Promote a safe working environment Eliminate or minimize both dry and wet weather sanitary sewer overflows (SSOs) Mitigate the impact of SSOs that do occur Fully comply with all State and Federal regulatory requirements Provide excellent customer service Provide adequate capacity to convey peak flows Manage and operate the wastewater collection system using the best management practices available Use available funds in the most efficient manner possible Page 1 of 1

4 II ORGANIZATION DATE ISSUED: DATE REVISED: WASTEWATER COLLECTIONS APPROVED BY: Robert Englent The WDR requires that the SSMP identify the organizational structure responsible for implementing the SSMP elements. a) The SSMP must indicate the name of the person(s) designated by the City as either a principal executive officer or ranking elected official, or by a duly authorized representative of that person, as described in paragraph (J.1.ii) of the State Water Resources Control Board Order No , General Waste Discharge Requirements (WDR). The Legally Responsible Official (LRO) must receive authorization from another LRO and have responsibility for the overall operation of the regulated facility or activity. Legally Responsible Official: Larry Parlin, Director of Utilities Legally Responsible Official: Robert Englent, Wastewater Collections Manager b) The following are the names and telephone numbers of the positions responsible for implementing specific measures of the SSMP. Specific lines of authorities are shown in the attached organizational chart. The names, telephone numbers, and positions of staff responsible for developing and implementing the SSMP are as follows: Director of Utilities: Larry Parlin (209) Wastewater Collections Manager: Robert Englent (209) Wastewater Collections Supervisor: Jack Cooke (209) Wastewater Collections Supervisor: David Steeley (209) Wastewater Collections Supervisor: Bob Eusebio (209) Engineering Manager: Will Wong (209) Environmental Regulatory Compliance Manager: Thomas Sinclair (209) Page 1 of 3

5 c) SSO Reporting Chain Of Communication City of Modesto, (209) , receives call of SSO from public Sewer maintenance crew and Environmental Compliance personnel are dispatched to mitigate & clean-up SSO SSO form (including GPS coordinates) completed by Wastewater Collections and Environmental personnel 2 hour notifications of SSOs greater than 1,000 gallons or those entering a waterway are typically reported by the Environmental Compliance personnel, but can also be done by Wastewater Collections personnel SSO forms forwarded to Wastewater Collections Supervisor Once all information is reviewed and verified, SSO event is certified by Wastewater Collections Manager The following flow charts show the City of Modesto s Public Works WQC Services Division and its assigned personnel. Page 2 of 3

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7 CITY OF MODESTO III. LEGAL AUTHORITY DATE ISSUED: DATE REVISED: WASTEWATER COLLECTIONS APPROVED BY: Robert Englent The City has the legal authority to construct, maintain and operate its sanitary sewers, as well as implement and enforce the requirements of the SSMP. The following ordinances are in place to enforce this element s requirements: A. City ordinances pertaining to the prevention of illicit discharges into the sanitary sewer system are found in the following sections of the City of Modesto Municipal Code. TITLE 5 SANITATION AND HEALTH Chapter 6 Wastewater Collection and Disposal Article 2 - Regulations B. The City ordinances pertaining to the proper design and construction of sewers and connections are found in the following sections of the City of Modesto Municipal Code. TITLE 4 PUBLIC WELFARE, SAFETY AND HEALTH Chapter 4 Subdivision of Land Article 8 Improvements C. City ordinances pertaining to lower lateral ownership are found in the following sections of the City of Modesto Municipal Code. TITLE 5 SANITATION AND HEALTH Chapter 6 Wastewater Collection and Disposal Article 3 Discharges of Fats, Oils, and Grease from Food Service Establishments D. City ordinances pertaining to the discharge of Fats, Oils, and Grease (FOG) and other debris that may cause blockages are found in the following sections of the City of Modesto Municipal Code. TITLE 5 SANITATION AND HEALTH Chapter 6 Wastewater Collection and Disposal Page 1 of 2

8 Article 3 - Discharges of Fats, Oils, and Grease from Food Service Establishments E. City ordinances pertaining to the enforcement of City of Modesto sewer ordinances are found in the following sections of the City of Modesto Municipal Code. TITLE 1 GENERAL PROVISIONS Chapter 2 Penalty Provisions TITLE 5 SANITATION AND HEALTH Chapter 1 General Sanitation Article 1 Sanitary Regulations Copies of both the City s Municipal Ordinances and the Construction Standards can be obtained from the City s website ( Page 2 of 2

9 CITY OF MODESTO IV. OPERATIONS AND MAINTENANCE PROGRAM DATE ISSUED: DATE REVISED: WASTEWATER COLLECTIONS APPROVED BY: Robert Englent The City of Modesto sanitary sewer system collection system consists of approximately 641 miles of sewer pipes, 12,571 manholes, 39 lift stations and other related infrastructure. The Wastewater Collections Section operates and maintains the sanitary sewer system using a reliability-centered maintenance program which seeks to prevent stoppages and blockages within the sanitary sewer system; which helps prevent Sanitary Sewer Overflows (SSOs) and backups into structures which can be harmful to both the public and the environment. A. System Inventory and Mapping The City s sanitary sewer collection system assets are fully inventoried in a geographic information system (GIS) database system that is able to provide full mapping capabilities and asset attribute descriptions. The entire storm and sewer collection system is contained in the GIS database which is considered approximately 95% accurate, providing a complete asset inventory of our systems. The City s Information Technology (IT) department is responsible for maintaining the GIS map of the sewer and storm infrastructure. Information gathered through field observations or our CCTV operation is regularly passed through to our GIS Analyst and incorporated into our system, so GIS data accurately reflects conditions in the field. The database includes manholes, sewer mains, pump stations, rockwells, catch basins, detention/retention basins, and stormwater outfalls. The attributes captured for each manhole on the sanitary and stormwater systems include: Manhole type: manhole, lamphole, cleanout, terminal manhole Manhole ID: the unique identification number for each manhole from the CassWorks Physical location: and Y, in state plane coordinates Rim elevation, Z, at the center of the structure Invert elevation: the invert elevation of the pipe leaving the manhole. This data was compiled from previous databases developed by the City; invert elevations were not surveyed as part of the new work Vertical datum: elevations in the City are typically in NAVD 88 or in the City s custom vertical datum. This field has not been populated for all manholes. Manhole material was not captured as part of the inventory. The attributes captured for each pipe segment on the sanitary and stormwater systems include: Material of construction Year of installation: populated from date on record drawings or plat maps Diameter Length Force main (yes/no) Page 1 of 9

10 Private (yes/no): Pipes that are maintained by homeowner associations or private landowners; the City is not responsible for maintaining these pipes Flow direction: the pipes are digitized in the direction of flow so that the City can develop a geometric network of the system: Slope: calculated when invert elevations are present at the upstream and downstream manholes Data source: record drawings or other data source The upstream and downstream manhole IDs are not stored in the attribute table for the pipe segments. However, this information can be obtained from the geometry of the graphical features. Pipe segments do not have an identification number. The attributes captured for each pump station include: Name Type: sanitary or stormwater Survey location: and Y in state plane coordinates; Z elevation in feet of structures B. Operation and Maintenance Activities In addition to the GIS database, the City also maintains a Computerized Maintenance Management System (CMMS). The City uses the CMMS to create and update of sanitary sewer and storm sewer Preventive Maintenance (PM) schedules. Accurate and timely PM schedules are essential to the proper operation of the sanitary sewer and storm sewer collection systems. The goal of the PM program is to provide the proper amount of maintenance needed in order to keep the system functioning without failure. The City s maintenance program includes periodic cleaning and maintenance of the sanitary sewer system, and more frequent or accelerated cleaning and maintenance of known problem areas (Hot Spots). Routine cleaning cycles are established for all lines and performed on a rotating basis of 3 to 5 years. When necessary, cleaning cycles are accelerated and can range from monthly to bi-annually. The City has a formal SSO and stoppage follow-up procedure to determine the appropriate course of action following an SSO or stoppage. Follow-up action can consist of an accelerated cleaning frequency, spot repairs, and/or a Capital Improvement Project. Regular scheduled maintenance is also performed on all lift stations. Page 2 of 9

11 For more information see the following: Standard Operating Procedure (SOP) C-12, Sewer Preventive Maintenance SOP C-13, Optimizing PMs SOP C-7, Sewer Maintenance SOP C-16, Sewer Root Control C. Rehabilitation and Replacement The City of Modesto uses closed circuit television (CCTV) inspection to perform physical condition assessments and determine the priorities for Rehabilitation and Replacement (R&R). Sewer infrastructures identified as deficient and in need of a Capital Improvement Project (CIP) are then added to the City s CIP list. The City has one in-house CCTV crew which consists of two members who perform routine, warranty and emergency video inspections of the City s sewer and storm lines. The CCTV inspections are also used during SSO and stoppage follow-ups to determine if a given line segment requires accelerated maintenance, a spot repair, or replacement through a CIP. Using CCTV inspection, the root cause of a failure can be identified and a plan created to address defects, or if necessary, make repairs. All CCTV inspections rate the condition of observed defects on a scale of 1 through 5; with 1 being, not likely to fail and 5 being, line has failed or failure is imminent. The City then uses this information to set priorities for the CIP Program. The City also uses CCTV contractors as necessary. An analysis of all documented SSOs showed that 93% of all SSOs within the City of Modesto come from 6 and 8 lines. As a result, in May 2014, the City hired a CCTV contractor to assist the City inspect of all 6 and 8 sewer lines by December In October 2014, the City issued a Request for Proposals (RFP) to perform a condition assessment of City trunk sewers and siphons, which is also expected to be completed by December The Wastewater Fund provides for an annual Collection System R&R CIP, which consists of projects identified by the Wastewater Collections Section. D. Training The City staff responsible for maintaining the sewer system are trained and experienced in performing the duties required to safely and effectively operate and maintain the sewer system. Employees are trained to follow standard operating procedures for all sewer cleaning, repairs, emergency response and other maintenance functions. Employees are trained to be competent in the safe operations of vehicles and equipment necessary to clean and maintain our sanitary sewer system. Employees are also rotated among different crews and sections to learn new skills and maintaining existing skills. The City has developed Standard Operating Procedures (SOP s) for sewer and storm cleaning using combination jet/vac trucks and power rodders. Operators regularly receive operational training is given based on these documents. In addition, as further training events are identified, employees are selected and sent as funding allows. Each employee s training and associated contact hours are tracked and monitored for use by those employees who possess professional organization certifications and which require contact for the renewal of said certifications. A copy of the Sewer Maintenance SOP is attached, see Attachment C: SOP C-7, Sewer Maintenance. The following table lists all training provided to Collection System Operators. All journey level operators are expected to be trained in all areas. Page 3 of 9

12 Bloodborne Pathogens Training Tailgate Training on how to prevent occupational exposure. Include warnings about the dangerous nature of blood and OPIM, mention that many BBP have no cure and are deadly, and some tips on avoiding contact. Also include methods for disinfection (bleach). Anyone who might encounter Blood or OPIM in the workplace CMMS Training Initial Training Training on use of the City's CMMS Anyone responsible for entering data into the CMMS or who needs to report data from the CMMS. Commercial Driver's License Prep Initial Training Training to prepare a driver to take the Commercial Drivers License Test Confined Space Safety Training Detailed course on Confined Space Entry including non-entry rescue and the roles of entrant, attendant, and entry supervisor Customer Service Training Seminar How to interact with customers in the field and represent the City well. Defensive Driver Training Safety Training Safe Driving methods applicable to the type of vehicle assigned Anyone who will be getting a Class A or B license for the City Anyone assigned to work in confined spaces Any employee who interacts with the public in the course of their duties Anyone who will drive for the City Drug and Alcohol Abuse Policy Safety Training Training on the City's Drug and Alcohol Abuse policy, including parts from the DOT policy Emergency Response Safety Training Cover the individual employee's responsibilities in an emergency Ergonomics Safety Training For office personnel, cover setting up a safe workstation and signs/symptoms that something is wrong. Cover posture. For field personnel, cover repetitive motion injuries, neutral position, safe work postures, safe lifting, safe carrying/working zone, and signs and symptoms of stress/injury All employees, especially those in the DOT pool Anyone with a role in the Emergency Response Plan (everyone) All personnel Page 4 of 9

13 Excavation Safety Safety Training Covers Trenching and Shoring, safe equipment operating procedures, overhead work procedures, plating, backfill and compaction, construction safety orders confined space work, terracing, etc. Fall protection Safety Training Use, inspection, care, storage, fit, selection of harnesses, fall arrestors, block and tackle, crank, tripod, davit arm, and other fall protection equipment. Cover fall protection standard and guidelines for handrails. \\comfilesrv1\shared\wqc\training\fall Protection Training OSHA.pdf Fire Extinguishers Tailgate Annual training on the use of fire extinguishers, especially: how to select, how to use, how to inspect, and when to use (only if the fire has not caught beyond the original source of ignition.) First Aid/CPR Training Safety Training Methods for application of First Aid and CPR, including BBP training HazCom Safety Training Location of MSDS, overview of the hazards common to the jobs assigned to the employee (not just chemicals), location of JHAs, PPE, how to use equipment to protect against hazards (fume hoods, machine guards, office chairs, etc.) Hazwoper Hearing Conservation Vendor Safety Training Vendor Safety Training See Hazwoper Training Program (found in WW Training Program) Cover the Hearing Conservation Program, especially the parts about when/where to use hearing protection Heat Stress and Illness Tailgate Cover signs, symptoms, and ways to avoid heat stress/illness Any Employee assigned to perform excavation or work in or around excavations Assigned to perform work where there is a danger of falling Everyone Field personnel, supervisors, others as assigned by supervisors Everybody needs this training, supervisors must identify the relevant miscellaneous hazards. Note: some other hazards, like hearing loss are covered elsewhere See Hazwoper Training Program (found in Wastewater Training Program) Employees who work around noise hazards Any employee exposed to heat stress at work Page 5 of 9

14 IIPP Safety Training Hazard Identification and mitigation, Roles, Safety Inspections, Communication, Training, Discipline, Recognition Job skills training Seminar Specific CWEA training on topics such as digester math, sludge dewatering, nozzle selection, safety, laboratory method selection, etc. Description Recommended. Everybody, even temps Staff should attend some sort of outside specific training at least once every 2 years Job Specific SOPs Initial Training Review all job specific SOPs As jobs are assigned Ladder and Scaffold Safety Tailgate Use, inspection, care, storage, and selection of ladders and scaffolds. LOTO Safety Training Cover LOTO program, equipment specific procedures, and use of LOTO devices Manhole Safety Training Tailgate Review safe methods for removing a manhole cover Employees assigned to perform work that requires a ladder Any employee whose work exposes them to sources of potentially hazardous energy. anyone who opens manhole covers NIMS SEMS 700a Vendor Safety Training National Incident Management System, An Introduction All government employees NIMS SEMS ICS 100 Vendor Safety Training Introduction to the Incident Command System Orientation Initial Training Introduce to staff, chain of command, pool vehicles, lunch/break times and areas, smoking area, requesting time off, copy room, supply areas, sick line SOP, etc. PPE Safety Training What to wear, how to use, limitations, maintenance, fit, inspect, don, doff, review of relevant JHAs All government employees All employees Anyone issued PPE, assigned any task requiring the use of the PPE Temporary Traffic Control/Work Zone Safety Safety Training Covers the tools and methods for conducting work in the public right-ofway. Any employees assigned to work in the public right-ofway Vaporrooter Training Tailgate Review of Vaporrooter plan and hazards presented by vaporrooter Employees who work around the sewer system during vaporrooter operations Page 6 of 9

15 Vehicle Use/Maintenance Policies Tailgate SOPs and ADs regarding vehicle use, maintenance, and accident reporting, especially seatbelt use and Radio/Cell phone use while driving Anyone who will drive for the City Workplace Violence Training Seminar How to defuse a potentially volatile situation Asbestos Safety Training See Cal-OSHA Standard to determine appropriate level of training Backhoe Operations Initial Training Training on how to safely operate a backhoe Any employee who interacts with the public in the course of their duties Anyone whose work might disturb asbestos Assigned to operate a backhoe concrete/masonry grinding Safety Training Anyone who grinds concrete or masonry Confined Space Entry Rescue Crane Operator Training Vendor Safety Training Training needed to pass certified crane operator exam, typically provided by an outside vendor Anyone who will be operating a crane Crane Rigger Training Vendor Safety Training Training on proper crane rigging, Crosby has provided for free in the past Anyone who will rig crane loads Electrical Safety Program Overview Safety Training review relevant aspects of the Electrical safety program Any employee assigned to work on, with, or near electrical equipment Fork Lift Operations Safety Training/Practical Exercise Training on the safe operation of forklifts, practical exam and re-cert Recommended once every 3 years Any employee assigned to operate a forklift Hazardous Waste Disposal Safety Training Covers disposal of hazardous wastes such as oil, rags, light bulbs, batteries, and other such wastes produced on site including spills of hazardous materials and illegal dumping Employees who work with hazardous materials Page 7 of 9

16 Hot work (welding, cutting, soldering, grinding, etc.) Safety Training Review hot work program and requirements Personnel Lift Equipment Safety Training Instructions for use of all equipment used to lift personnel (aerial lift, bucket truck, scissor/man/genie lift, etc.) Respiratory Protection Safe Chemical Handling and Storage USA tagging training Vendor Safety Training Tailgate Vendor Safety Training Review of Program, especially which equipment to use and when, fit test, medical evaluation Labeling, secondary containment, approved containers, storage, compressed gas, spill response, accidental exposure etc. for chemicals the employee may encounter Cover methods for conducting USA Tagging operations Any employee who will perform hot work or act as a fire guard per the hot work program Anyone assigned to work with any personnel lift equipment Any employee allowed or assigned to use a respirator Uses potentially hazardous chemicals Assigned to perform USA Tagging Page 8 of 9

17 E. Contingency Equipment & Replacement Inventories The Fleet Services Division works closely with the Operations and Maintenance staff to ensure vehicles are functioning properly and safely. Replacement equipment needs are evaluated annually and considered during the budget process. Below shows a list of all vehicles assigned to Wastewater Collections. Collection System Vehicles Type # of Vehicles Type # of Vehicles Arrow Board 2 Sedan 1 Back Hoe 2 Message Board 1 CCTV Van 1 Loader 1 Compressor 1 Power Rodder 1 Crane 1 Trailer 3 Crane Truck 2 Jet/Vac 5 Dump Truck 4 Fork Lift 2 Generator 9 Truck 12 Construction Utility Truck 2 Page 9 of 9

18 V. DESIGN AND PERFORMANCE PROVISIONS DATE ISSUED: DATE REVISED: WASTEWATER COLLECTIONS APPROVED BY: Robert Englent DESIGN AND PERFORMANCE PROVISIONS a) The City has adopted design, construction, and performance Standard Specifications for the installation of new sanitary sewer systems, pump stations, and other appurtenances. The City adheres to these Standards when performing rehabilitation and/or repair of existing sanitary sewer systems. These standards and provisions include, design procedures, construction standards and materials specifications that are necessary to have an effective sewer system. 1. The City ordinance requiring improvements to conform to City Standards is located within the following City of Modesto Municipal Code. i. TITLE 4 PUBLIC WELFARE, SAFETY AND HEALTH ii. Chapter 4 Subdivision of Land 2. The City of Modesto Standard Specifications 2014 is published on the City s website: 3. The procedure and standards for inspection and testing, related to the installation of new sewers, pumps, and other appurtenances, including rehabilitation and repair projects; is described in the City Standards and can be found in Section 5.04 D. Page 1 of 1

19 VI. OVERFLOW EMERGENCY RESPONSE PLAN DATE ISSUED: DATE REVISED: , WASTEWATER COLLECTIONS APPROVED BY: Robert Englent The City responds to sanitary sewer overflows and other sewer emergencies according to a well established emergency response plan. This plan covers the necessary procedures and timeframes for properly handling an incident and mitigating its impacts including: A. The City of Modesto has developed notification procedures to ensure that all SSOs are responded to and reported in a timely manner. a. Notification procedures for primary responders are included on page 8 of SOP S-5, Front Desk Procedures. b. Notification procedures for regulatory agencies are part of the City of Modesto Sanitary Sewer Overflow packet. This SSO packet includes instructions to primary responders, Chainof-Custody tracking, a blank SSO report, and notification details including contact information. SOP, S-5 Front Desk Procedures SSO Overflow Packet B. The City of Modesto has developed SOPs to ensure that all SSOs receive the appropriate response. This SOP includes a picture chart used in SSO volume estimation and instructions for completing the SSO report. SOP, C-10 SSO Response C. The City has developed an SOP to ensure that all SSOs are reported in accordance with the MRP, the California Water Code, State Law, Regional Water Board WDRs, and/or NPDES permit requirements. This SOP includes reporting and contact information for primary responders to use during an SSO. SOP, Regulatory Notification Packet, RN-1 D. The City of Modesto does not use contractors for SSO or Emergency Response. Contractors would only be used to make emergency repairs to large trunk sewers or to clean-up hazardous materials. The City of Modesto conducts annual SSMP training for Wastewater Collections staff. The City does not have an SOP stating required training for Collection System Operator E. Emergency Procedures are contained within the SOP: C-10, SSO Response and the SSO Overflow Packet. F. SSO Containment procedures are contained within the SOP: C-10, SSO Response Page 1 of 1

20 VII. FOG CONTROL PROGRAM DATE ISSUED: DATE REVISED: , WASTEWATER COLLECTIONS APPROVED BY: Robert Englent Fats, oils and grease (FOG) can be a significant cause of sanitary sewer blockages. FOG is introduced into the sewer system from various sources, including residences, industrial businesses and restaurants. The City s FOG program uses a balanced approach to address this problem through procedures are designed to ensure compliance during the plan review, permit issuance and inspection processes. The City requires that grease removal devices be installed in certain applications, such as restaurants and other grease-discharging facilities, and these facilities are required to install and maintain a grease interceptor with a minimum capacity of 750 gallons. a) The City s FOG public education outreach program has been fully implemented and is an ongoing program. The City performs a number of outreach efforts to inform the public about the problems caused by FOG and how to reduce or eliminate them. This includes informational inserts included in utility bills and FOG signs on Jet/Vac trucks. b) The City maintains a list of approved FOG disposal facilities for the disposal of FOG generated within the system service area. c) City ordinances pertaining to the discharge of Fats, Oils, and Grease (FOG) and other debris that may cause blockages are found in the following sections of the City of Modesto Municipal Code. a. TITLE 5 SANITATION AND HEALTH i. Chapter 6 Wastewater Collection and Disposal ii. Article 3 - Discharges of Fats, Oils, and Grease from Food Service Establishments b. Maintenance Requirements Following are guidelines for maintenance at restaurant facilities: i. Excess oils and grease must be placed in specified grease containers and disposed of properly. There will be no oils and grease poured into the drain. ii. The grease trap, grease interceptor, and/or solids interceptor must be completely cleaned or pumped out as often as necessary to avoid major grease Page 1 of 4

21 and solids build-up. For grease traps and solids interceptors, ECS recommends the following: 1. Skim grease layer from the grease trap at least once a week. 2. Pump-out the grease trap at least once a month. 3. Clean the solids interceptor frequently iii. Wastewater from the cleaning of kitchen floor mats must be directed through a gravity separation interceptor and then through the sanitary sewer system. The maintenance of all grease control devices will be governed under Modesto Municipal Code Interceptor Maintenance: 1. Any person who owns or operates a gravity separation interceptor shall properly maintain the interceptor at all times. The interceptor shall be cleaned as often as necessary to ensure that sediment and floating materials do not accumulate to impair the efficiency of the interceptor. An interceptor is not considered to be properly maintained, if for any reason the interceptor is not in good working condition or if the operational fluid capacity has been reduced by more than twenty-five (25) percent by the accumulation of floating materials, sediment, oils or greases. 2. The use of chemicals, microbiological agents or other materials for the emulsification, suspension or dissolution of oil and grease is prohibited. 3. When an interceptor is cleaned, the removed sediment, liquid and floating material shall be legally disposed of in a manner other than to the City's collection system, POTW or storm drain. Manifests for the cleaning of the interceptor shall be kept at the same facility as the interceptor and shall be available at all times for inspection. 4. If the interceptor is not maintained adequately under the conditions of use, the interceptor shall be resized and the user shall install one which is effective in accomplishing its intended purpose. 5. The owner and lessee, sub-lessee, proprietor, operator, or superintendent of any facility, required to install an interceptor, are individually and severally liable for any failure to properly maintain such an interceptor. In addition, the following is recommended for complexes that have grease-generating facilities and private sewer lines within their property: 6. When cleaning the sewer lines within the facility, the line must be vacuumed at the junction between the facilities' sewer line and the City's sewer line. This ensures that loosened grease and other constituents does not discharge and/or accumulate into the City's sewer line. The owner or the appropriate representatives shall determine the maintenance schedule of the facilities sewer line(s). Page 2 of 4

22 d) City ordinances pertaining to the installation of grease removal devices, maintenance requirements of grease removal devices, BMP requirements, record keeping and reporting requirements are found in the following sections of the City of Modesto Municipal Code. a. TITLE 5 SANITATION AND HEALTH i. Chapter 6 Wastewater Collection and Disposal ii. Article 3 - Discharges of Fats, Oils, and Grease from Food Service Establishments e) City ordinances pertaining to the authority to inspect grease producing facilities and the City s enforcement authority are contained in the following section of the City of Modesto Municipal Code. a. TITLE 1 GENERAL PROVISIONS i. Chapter 2 Penalty Provisions b. TITLE 5 SANITATION AND HEALTH i. Chapter 1 General Sanitation 1. Article 1 Sanitary Regulations f) The City s cleaning program records line conditions observed during cleaning operations and adjusts Preventive Maintenance (PM) cleaning schedules based on observed conditions. Additionally, the City utilizes Closed Circuit TV (CCTV) inspections to evaluate pipe segments where stoppages or SSOs have occurred due to FOG and/or other factors. These procedures are identified in the following SOPs: Standard Operating Procedure (SOP) C-12, Sewer Preventive Maintenance SOP C-13, Optimizing PMs SOP C-7, Sewer Maintenance SOP C-16, Sewer Root Control g) Inspectors will investigate areas of concern where there is an indication that excess grease is accumulating to determine the source of FOG. If identified, appropriate actions are taken to eliminate the source. The City of Modesto's Environmental Compliance Section works with the Collections section to identify any problems in the sewer lines that were caused by grease. If Collections identifies a grease problem within the range of an area with any businesses that have the potential to discharge any grease, the problem is reported to the Environmental Compliance Section. ECS inspectors would then go to the problem area and identify any grease discharging businesses that may have contributed to the problem. Inspectors will investigate areas of concern where there is an indication that excess grease is accumulating to determine the source of FOG. If identified, appropriate actions are taken to eliminate the source or the upgrade of, any grease control device(s). Page 3 of 4

23 If the facility has a grease trap or grease interceptor, the facility will have to show maintenance manifests and/or maintenance logs. If a discrepancy is noted, depending on the severity of the grease problem and type of grease collection device present, the facility is given a compliance schedule that would enable them to achieve compliance with current regulations. When a source of FOG is identified through the methods identified above, the City of Modesto, Regulatory Compliance Officer will work with the property owner/business owner to develop a corrective action plan to mitigate the source of FOG using the authority of the afore mentioned City ordinances. Page 4 of 4

24 VIII. SYSTEM EVALUATION AND CAPACITY ASSURANCE PROGRAM DATE ISSUED: DATE REVISED: , WASTEWATER COLLECTIONS APPROVED BY: Robert Englent The City of Modesto uses Closed Circuit TV (CCTV) inspection, operator input, flow monitoring, and hydraulic modeling to evaluate the condition of the collection system and ensure adequate capacity. Using this information the City prepares and continually updates the collection system Capital Improvement Plan (CIP). The City s CIP program is detailed within the Wastewater Collection System Master Plan. The City is currently updating the 2007 Master Plan and this is expected to be complete by A full copy of the City of Modesto Wastewater Collections Master Plan is available on line at a) The City of Modesto has never experienced an SSO discharge due to a hydraulic deficiency. However, the City uses flow monitoring and hydraulic modeling to evaluate the collection system to determine if a potential hydraulic deficiency exists within the system. This hydraulic modeling is based on a 100 year/24 hour storm event. b) The City s hydraulic modeling shows that some pipe segments exceed the City s design criteria, but not are at risk of a capacity related SSO. A review of the design criteria was recently conducted as part of the City Standards revision process and was considered appropriate and therefore was not changed. The design criteria is included in the City Standards and can be found at c) While the City does not suffer from capacity related SSOs, the City continues working to identify sources of I/I. The City has a number of identified cross-connections (I/I) and has developed a plan for addressing these sources. d) The CIP schedule is associated with the City s CIP program and the cross-connection removal program. These schedules are continuously reviewed and updated to address changing priorities. Page 1 of 1

25 I. MONITORING, MEASUREMENT, AND PLAN MODIFICATIONS DATE ISSUED: DATE REVISED: , WASTEWATER COLLECTIONS APPROVED BY: Robert Englent The City continually monitors the elements of the SSMP to ensure its effectiveness. The City currently maintains and evaluates a number of performance indicators used to monitor and manage the SSMP as well as the effectiveness of the sanitary sewer maintenance program. Some of these indicators are listed below: Number of SSOs per year % of SSOs by known cause Total footage of sanitary sewer cleaned Total footage of sanitary sewer lines inspected (CCTV) a) The City tracks and maintains data from all maintenance activities and uses this data to establish and prioritize SSMP activities. This data is stored within the CASSWORKS CMMS. The City is planning to upgrade the CMMS to improve planning; organizing, recording, tracking, and reporting of all work performed on wastewater and stormwater assets. b) The City has fully implemented the SSMP and the reduction is SSOs achieved is an indication of the effectiveness of the SSMP elements. c) The City has developed a comprehensive Preventive Maintenance (PM) program that uses field observations from cleaning crews and CCTV crews to update PM frequencies. The success of the PM program is determined by the reduction in repeat SSOs and stoppages. d) The City s maintenance program as described in the SSMP is audited as required by the WDR and program elements are updated as needed. e) SSO trends are demonstrated in the graphs below Page 1 of 4

26 # SSOs # SSOs Number of SSOs per year # of SSOs SSO TREND # of SSOs YEAR SSO TREND SSOs/100/YR YEAR Page 2 of 4

27 Sanitary Sewer Overflow Causes # % Grease 30 41% 2008 Roots 7 10% Damaged Sewer 1 1% Debris 32 44% Unknown/Other 2 4% % 41% 10% 4% 1% % Debris Grease/FOG Unknown/Other Structural Failure Roots # % Grease 47 57% 2009 Roots 7 8% Damaged Sewer 2 2% Debris 22 27% Unknown/Other 5 6% % % 2% 8% 27% 57% Debris Grease/FOG Unknown/Other Structural Failure Roots # % Grease 33 61% 2010 Roots 7 13% Damaged Sewer 0 0% Debris 11 20% Unknown/Other 3 6% % 13% 6% 61% % Debris Grease/FOG Unknown/Other Structural Failure Roots # % Grease 11 30% 2011 Roots 9 24% Damaged Sewer 1 3% Debris 15 40% Unknown/Other 1 3% % 3% 3% 24% 30% % Debris Grease/FOG Unknown/Other Structural Failure Roots # % Grease 9 43% 2012 Roots 5 24% Damaged Sewer 0 0% Debris 6 28% Unknown/Other 1 5% % 5% 24% 43% 2012 Debris 28% Grease/FOG Unknown/Other Structural Failure Page 3 of 4

28 # % Grease 12 41% 2013 Roots 6 21% Damaged Sewer 2 7% Debris 9 31% Unknown/Other 0 0% % 7% 21% % Debris Grease/FOG Unknown/Other Structural Failure 41% Roots # % Grease 4 45% 2014 Roots 2 22% Damaged Sewer 0 0% Debris 3 33% Unknown/Other 0 0% % 22% % Debris Grease/FOG Unknown/Other Structural Failure 45% Roots Page 4 of 4

29 . SSMP PROGRAM AUDITS DATE ISSUED: DATE REVISED: , WASTEWATER COLLECTIONS APPROVED BY: Robert Englent The City regularly evaluates the effectiveness of each element of the SSMP and will continue to work with other agencies and groups to identify and implement the best management practices through the SSMP. City of Modesto Sewer System Management Plan (SSMP) 2014 Audit Report Directions: Please check YES or NO for each question. If NO is answered for any question, describe the updates/changes needed and the timeline to complete those changes in the Description of Scheduled Updates/Changes to the SSMP section on Page 5 of this form. YES NO ELEMENT 1 GOALS A. Are the goals stated in the SSMP still appropriate and accurate? ELEMENT 2 -- ORGANIZATION A. Is the Public Works Key Staff Telephone List current? B. Is the Sanitary Sewer Overflow Responder Telephone List current? C. Is the SSMP, City Organization Chart, current? D. Are the position descriptions an accurate portrayal of staff responsibilities? E. Is the SSMP, Chain of Communication for Reporting and Responding to SSOs, accurate and upto-date? ELEMENT 3 LEGAL AUTHORITY Does the SSMP contain excerpts from the current City Municipal Code documenting the City s legal authority to: A. Prevent illicit discharges? B. Require proper design and construction of sewers and connections? C. Ensure access for maintenance, inspection, or repairs for portions of the lateral owned or maintained by the City? D. Limit discharges of fats, oil and grease? E. Enforce any violation of its sewer ordinances? ELEMENT 4 OPERATIONS AND MAINTENANCE Collection System Maps A. Does the SSMP reference the current process and procedures for maintaining the City s wastewater collection system maps? B. Are the City s wastewater collection system maps complete, current, and sufficiently detailed? Resources and Budget C. Does the City allocate sufficient funds for the effective operation, maintenance and repair of the wastewater collection system and is the current budget structure documented in the SSMP? Page 1 of 4

30 Prioritized Preventive Maintenance D. Does the SSMP describe current preventive maintenance activities and the system for prioritizing the cleaning of sewer lines? E. Are the City s preventive maintenance activities sufficient and effective in minimizing SSOs and blockages? Scheduled Inspections and Condition Assessments F. Is there an ongoing condition assessment program sufficient to develop a capital improvement plan addressing the proper management and protection of infrastructure assets? Are the current components of this program documented in the SSMP? Contingency Equipment and Replacement Inventory G. Does the SSMP list the major equipment currently used in the operation and maintenance of the collection system and document the procedures of inventory management? H. Are contingency equipment and replacement parts sufficient to respond to emergencies and properly conduct regular maintenance? Training I. Is the training calendar current? J. Does the SSMP document current training expectations and programs within the City s Wastewater Division? Outreach to Plumbers and Building Contractors K. Does the SSMP document current outreach efforts to plumbers and building contractors? ELEMENT 5 DESIGN AND PERFORMANCE STANDARDS Does the SSMP contain current design and construction standards for the installation of new sanitary A. sewer systems, pump stations and other appurtenances and for the rehabilitation and repair of existing sanitary sewer systems? B. Does the SSMP document current procedures and standards for inspecting and testing the installation of new sewers, pumps, and other appurtenances and the rehabilitation and repair of existing sewer lines? ELEMENT 6 OVERFLOW AND EMERGENCY RESPONSE PLAN A. Does the City s Sanitary Sewer Overflow and Backup Response Plan establish procedures for the emergency response, notification, and reporting of sanitary sewer overflows (SSOs)? B. Is Wastewater Division staff appropriately trained on the procedures of the Sanitary Sewer Overflow and Backup Response Plan? C. Considering performance indicator data in the Annual SSO Report, is the Sanitary Sewer Overflow and Backup Response Plan effective in handling SSOs in order to safeguard public health and the environment? ELEMENT 7 FATS, OILS, AND GREASE (FOG) CONTROL PROGRAM A. Does the Fats, Oils, and Grease (FOG) Control Program include efforts to educate the public on the proper handling and disposal of FOG? B. Does the City s FOG Control Program identify sections of the collection system subject to FOG blockages, establish a cleaning schedule and address source control measures to minimize these blockages? C. Are requirements for grease removal devices, best management practices (BMP), record keeping and reporting established in the City s FOG Control Program? D. Does the City have sufficient legal authority to implement and enforce the FOG Control Program? E. Is the current FOG program effective in minimizing blockages of sewer lines resulting from discharges of FOG to the system ELEMENT 8 SYSTEM EVALUATION AND CAPACITY ASSURANCE PLAN Does the City Sanitary Sewer Master Plan evaluate hydraulic deficiencies in the system, establish A. sufficient design criteria and recommend both short and long term capacity enhancement and improvement projects? B. Does the City s Capital Improvement Plan (CIP) establish a schedule of approximate completion dates for both short and long-term improvements and is the schedule reviewed and updated to reflect current budgetary capabilities and activity accomplishment? Page 2 of 4

31 ELEMENT 9 MONITORING, MEASUREMENT, AND PROGRAM MODIFICATIONS Does the SSMP accurately portray the methods of tracking and reporting selected performance A. indicators? Is the City able to sufficiently evaluate the effectiveness of SSMP elements based on relevant B. information? ELEMENT 10 SSMP AUDITS Will the SSMP Audit be submitted to the Regional Water Board by March 15 th of the year following A. the end of the calendar year being audited? ELEMENT 11 COMMUNICATION PROGRAM Does the City effectively communicate with the public and other agencies about the development and A. implementation of the SSMP and continue to address any feedback? Description of Scheduled Updates/Changes to the SSMP Directions: For each NO answer, please describe the planned revision and indicate the date the revision will be completed. Reference the SSMP element and question number with each explanation. Executive Summary Finding The Executive Summary is not an element of the SSMP and therefore should not be numbered Element 1 Goals Finding The goals should not reference the Wastewater Collections Master Plan Finding Needs to include plan and schedule Element 2 Organization Finding The names and phone numbers for management need to be updated. Finding The organization chart needs to be updated to account for the re-organization Finding The SSO Chain-of-Command needs minor revision Element 3 Legal Authority Finding Needs to be updated to address WDR elements (a, b, c, d, e) with excerpts from the MMC Element 4 Operations and Maintenance Finding Needs to include a description of tablet use to view system maps Finding b, Need to add Sewer Maintenance SOP, Sewer PM SOP, Optimizing Sewer PM SOP, CASSWORKS PM Creation and Updating SOP, and Sewer Root Control SOP Finding c, Need to describe CIP program, describe CCTV program, include Proforma Finding d, Need to describe training program Finding e, Needs to describe fleet program Element 5 Design and Performance Standards Finding a, Need to update to include new City Standards Finding b, Need to include excerpt pertaining to inspection and testing Element 6 Overflow and Emergency Response Plan Finding This element needs to be re-ordered to address each component of the WDR Finding a, Need to include Collections SSO Reporting SOP and SSO Report SOP Finding b, Need to include excerpt pertaining to spill response and Standby SOP Finding c, Need to include revised Regulatory Notification Packet Finding d, Need to describe training program Finding e, Need to address emergency operations Finding f, Need excerpt describing spill containment procedures Element 7 Fat, Oils, and Grease (FOG) Control Program Finding - This element needs to be re-ordered to address each component of the WDR Finding a, Add description of public outreach program Finding b, Need to add an excerpt pertaining to the Jet/Vac dump site Finding c, Need to add an excerpt from the MMC pertaining to FOG legal authority Page 3 of 4

32 Finding d, Need to add description of grease traps, maintenance requirements, BMP requirements, record keeping and reporting requirements Finding e, Need to add excerpt from MMC describing inspection authority Finding f, Need to describe or add excerpt describing reporting feedback and PM updating Finding g, Describe source control measures Element 8 System Evaluation and Capacity Assurance Plan Finding - This element needs to be re-ordered to address each component of the WDR Finding a, Need to add last report from the hydraulic model Finding b, Need to include excerpt from Standards showing design criteria Finding c, Need to include capacity CIPs Finding d, Need to show CIP schedule Element 9 Monitoring, Measurement, and Program Modifications Finding This element needs to be re-ordered to address each component of the WDR Finding a, Need to add a description of database Finding b, Missing narrative describing on-going monitoring of the effectiveness of the SSMP Finding c, Missing assessment of successfulness of PM program Finding d, Describe program updates Finding e, Needs to be updated to include updated information on the number of SSOs, SSO causes, and SSO Trends Element 10 SSMP Audits Finding Audit form needs to updated to include specific elements in WDR Element 11 Communication Program No findings Page 4 of 4

33 I. COMMUNICATION PROGRAM DATE ISSUED: DATE REVISED: , WASTEWATER COLLECTIONS APPROVED BY: Robert Englent The City has performed effective communications and outreach to the public, stakeholders and satellite agencies on the development, implementation and performance of the SSMP. The City of Modesto s primary customers are the residents, industrial, and commercial customers that connect to the sewers within Modesto. In addition, two satellite agencies contribute flow to the City of Modesto s sanitary sewer collection system. These agencies are the City of Ceres and the Empire Sanitary District. The primary customers of the satellite agencies are the residents, industrial, and commercial customers that connect to the collection sewers located within the service areas of each of the contributing agencies. The responsible parties for the satellite agencies are: City of Ceres-Wastewater Systems Supervisor: Terry Turner Phone: (209) terry.turner@ci.ceres.ca.us Empire Sanitary District Thomas Burns (President) Brandy Ochoa (Office Manager) Phone: (209) Sewer emergency: (209) empiresanitary@sbcglobal.net Communication with, and outreach to, residents, industrial, and commercial customers and the general public The City of Modesto conducts public outreach and education to residents and businesses related to sanitary sewer overflows, preventing grease blockages and the Best Management Practices (BMP s) for handling of grease waste. Residential education includes targeted information material on proper grease disposal and describing the negative impacts of discharging fats, oils and grease into our sanitary sewer system. This is done at community events and through utility bill inserts mailings. The City s Environmental Services Section currently inspects food service facilities after complaints have been issued for compliance to BMP s and proper maintenance of grease devices. The City also conducts plan checks for proposed restaurants and other food service facilities to further ensure compliance with City BMP s. Communication with, and outreach to, land developers, consultant engineers, and contractors Page 1 of 2