Res 2008-083 - Laserfiche WebLink

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5. Enforcement • In addition to the FOG ordinance, staff has determined that the existing Sewer Use Ordinance (SUO) should be reviewed and updated as needed to address private collection line maintenance. The City Staff will prepare a draft updated SUO for review by the City Attorney. Using this legal authority, the wastewater collection system staff can require system users to meet performance standards, maintain user-owned elements of the system, and pay penalties for non- compliance. City staff has a comprehensive maintenance management system (MAXIMO) that is linked to the City GIS mapping system. A modification to the MAXIMO software will be initiated to gather attributes associated with the FOG program allowing maintenance staff to visualize on maps chronic blockages or grease traps that historically have caused blockages. Additional actions such as a more frequent cleaning schedule or notice to grease trap owner of defective traps can be closely followed. Section 2 Plan for Continuation of Chemical Treatment in the Collection System The City of San Marcos currently performs chemical treatment for FOG and root control in the lift- stations and collection system. The proposed plan undertakes the following tasks. 1. Continuation of chemical feed at existing sites 2. Installing chemical feed systems at sites where data indicates chronic blockages have occurred or are developing. This may include heavily commercialized areas with greater • FOG source concentration and high residential densities or other factors with are seen to increase the probability of stoppages. 3. Monitoring and adjusting program performance for the purpose of optimizing chemical selection, dosage and cost benefit yield. Section 3 Plan for the Implementation of a Routine Collection System Cleaning Schedule The San Marcos wastewater collection system is composed of 185 miles (976,8001inear feet) of gravity sewer. Much of the sewer is vitrified clay that is very susceptible to root intrusion through pipe joints and cracks. The City has a prioritized cleaning schedule in place and that coupled with the FOG program outlined in Section 1 will address the buildup of grease and debris in the collection system. Items of the program already in place include: 1. Scheduled cleaning of gravity sewers, with a higher frequency in those areas with a history of stoppages due to debris and fats, oils, and grease in order to minimize SSO's. (See also Section 1 above for FOG control information.) 2. Cleaning and CCTV of all sewers above the Edwards Aquifer every 5 years 3. Root control in areas that are known to have recurring blockages or premature structural damage due to root intrusion • 4. Investigation and resolution of customer complaints including CCTV of segment to establish the failure mode and develop repair strategy