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

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WASTE DISCHARGE REQUIREMENTS ORDER R5-2012-0105 18 DIAMOND PET FOOD PROCESSORS OF RIPON, LLC AND RIPON COGENERATION, LLC DIAMOND PET FOOD RIPON FACILITY SAN JOAQUIN COUNTY G. Sludge Disposal Specifications Sludge, as used in this document, means the solid, semisolid, and liquid residues removed during primary, secondary, or advanced wastewater treatment processes. f. Sludge shall be removed from screens, sumps, ponds, and clarifiers as needed to ensure optimal treatment system operation. 2. Any handling and storage of residual sludge shall be temporary and controlled and contained in a manner that minimizes leachate formation and precludes infiltration of waste constituents into soils in a mass or concentration that will violate the groundwater limitations of this Order. 3. Residual sludge shall be disposed of in a manner approved by the Executive Officer and consistent with Title 27, division 2. Removal for further treatment, disposal, or reuse at disposal sites(i.e., landfills, WWTFs, composting sites, soil amendment sites) operated in accordance with valid waste discharge requirements issued by a Regional Water Board will satisfy this specification. 4. Any proposed change in sludge use or disposal practice shall be reported in writing to the Executive Officer at least 90 days in advance of the change. H. Provisions: 1. The following reports shall be submitted pursuant to Section 13267 of the California Water Code and shall be prepared as described in Provision H.2. a. By 1 January 2013, the Discharger shall submit a Groundwater Limitations Compliance Assessment Plan. The plan shall describe and justify the statistical methods used to compliance for the constituents listed in the Monitoring and Reporting Program. Compliance shall be determined annually based on an intra-well statistical analysis prescribed in Title 27, section 20415(e)(10) to compare monitoring data collected at each compliance well. b. By 1 May 2013, the Dischargers shall submit a Groundwater Monitoring Well Destruction Plan for the wells that are not used for the Diamond and Nestle sites. The workplan shall describe the proposed abandonment procedures, which shall comply with California Well Standards Bulletin 74-90(June 1991); State of California Bulletin 94-89 (December 1981); and any more stringent standards adopted by the state or county pursuant to Water Code section 13801. At a minimum, the workplan shall specifically address the monitoring wells listed in Attachment D. For each well that will not be destroyed, provide an explanation of the need to maintain the well for monitoring purpose. c. By 30 December 2013, a Well Destruction Report shall be submitted to the Central Valley Water Board that describes in detail the methods used to abandon each well and includes copies of the well abandonment permits issued by the San Joaquin County Environmental Health Department.