ARCHIVED REPORTS_COMBINED ANNUAL AND SECOND-HALF 2012 GROUNDWATER MONITORING REPORT 01-31-2013

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MONITORING AND REPORTING PROGRAM R5-2012-0105 6 DIAMOND PET FOOD PROCESSORS OF RIPON, LLC AND RIPON COGENERATION, LLC DIAMOND PET FOOD RIPON FACILITY SAN JOAQUIN COUNTY verify compliance with the WDR, this MRP, and the Standard Provisions and Reporting Requirements. The narrative shall be supported by field logs for each well documenting depth to groundwater; parameters measured before, during, and after purging; method of purging; calculation of casing volume; and total volume of water purged; 3. For each monitoring event: a. Calculation of groundwater elevations, determination of groundwater flow direction and gradient on the date of measurement, comparison of previous flow direction and gradient data, and discussion of seasonal trends if any; and b. A narrative discussion of the analytical results for all groundwater locations monitored including spatial and temporal tends, with reference to summary data tables, graphs, and appended analytical reports (as applicable). 4. Summary data tables and graphs of historical and current water table elevations and analytical results; 5. A scaled map showing relevant structures and features of the facility, the locations of monitoring wells and any other sampling stations, and groundwater elevation contours referenced to mean sea level datum; and 6. Copies of laboratory analytical report(s)for groundwater monitoring. C. Annual Report In addition to the monthly and quarterly monitoring reports, an Annual Report shall be prepared. The Annual Report shall be submitted to the Central Valley Water Board by 1 February each year. The Annual Report shall include the following: 1. The results from annual monitoring of the effluent, groundwater, and water supply; 2. The maximum monthly influent flows and the annual total flows to the clarifier including influent flows, distilled water and groundwater for dilution; 3. Tabular summaries of monitoring data collected during the year; 4. A digital database file (Microsoft Excel) containing historic groundwater and effluent data; 5. An evaluation of the performance of the WWTF, including discussion of capacity issues, nuisance conditions, and a forecast of the flows anticipated in the next year; 6. Progress in implementation of the Salinity and Nutrient Evaluation and Minimization Plan, including a comparison of total salinity and nutrient loading to each LAA for the current and previous years; 7. A statistical evaluation of groundwater quality and compliance with the Groundwater Limitations of the WDRs in accordance with the approved Groundwater Limitations Compliance Assessment Plan submitted pursuant to Provision 1.a. of the WDRs. Statistical analyses shall be presented for the following constituents in the compliance wells: electrical conductivity, total dissolved solids, chloride, and nitrate nitrogen. The compliance wells are: OB-2, 013-4, OB-7, OB-8, OB-11, 013-19, OB-26, and 013-28; 8. All groundwater evaluations shall be prepared under the direct supervision of a registered Professional Engineer or Geologist and signed by the registered professional;