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MONITORING AND REPORTING PROGRAM NO. R5-2010-0016 -3- SAN JOAQUIN COUNTY DEPARTMENT OF PUBLIC WORKS NORTH COUNTY LANDFILL SAN JOAQUIN COUNTY 2. Monitoring Requirements Standard observations of the site (e.g., landfill cover, perimeter ditches, sedimentation basin, South Paddy Creek) shall be performed weekly and recorded in field logs. Any landfill leachate seeps detected during these inspections (or at any other time) shall be reported in accordance with WDR Reporting Requirement F.5, and any leachate that enters a module excavation area or facility drainage system shall be sampled and analyzed for the COCs referenced in Table C.1 herein. B. FACILITY MONITORING The discharger shall inspect the landfill and associated facilities (e.g., cover, precipitation and drainage controls, gas extraction system, monitoring wells, access roads), as necessary, to ensure that such facilities are functioning properly and are in adequate maintenance and repair. Any damage to the landfill facilities observed during these inspections shall be flagged and repaired. Facility inspections and repairs shall be conducted in accordance with the following schedule: Purpose Inspection Frequency Complete Repairs1 1. Regular Maintenance Monthly Within 30 days 2. Storm Response Within one week of significant storm event2 Within two weeks of storm event 3. Site Winterization By September 30 of each year By October 31 of each year__________________________ 1. If necessary repairs cannot be completed within specified time frame, the Discharger shall, within 7 days, notify the Regional Water Board and provide a schedule for completing them. 2. A “significant” storm event shall be one that produces 1.4 inches or more of precipitation within a 24-hour period, as measured at the Linn Ranch Station. The results of these inspections, including documentation of any significant damage and/or repairs (e.g., field logs, site map showing location of damage, before and after photos) shall be included in the semiannual monitoring report for the period and summarized in the Annual Report. If no inspection and/or repairs were conducted as required above, the report shall so state, providing the reason and circumstances (e.g., no significant storm event during monitoring period). C. WATER QUALITY PROTECTION STANDARD (Section 20390) The Water Quality Protection Standard (WQPS) shall consist of all COCs, Concentration Limits (CLs) for each COC, Monitoring Points, Point of Compliance, and the Compliance Period. 1. Constituents of Concern (Section 20395) The COC list includes all the waste constituents, their reaction products, and hazardous constituents that are reasonably expected to be in or derived from waste contained in the Unit. The COCs for all monitored waters at the site (i.e., unsaturated zone, groundwater, and surface water) shall be as listed in Tables