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RFpon <br /> Altalias Operations Inc. <br /> Mike Ludwin <br /> c/o AltaGas Ripon Energy Inc. <br /> 944 South Stockton Ave. <br /> Ripon, CA 95336 <br /> Mr. Brendan Kenny <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 11020 Sun Center Drive #200 <br /> Rancho Cordova, CA 95670-6114 <br /> April 18, 2016 <br /> Subject: Transmittal Letter Combined Annual and 2016 Q1 Groundwater-Monitoring <br /> Report for Diamond Pet Food Processors of Ripon, LLC and AltaGas Ripon <br /> Energy Inc., Ripon, California <br /> Dear Mr. Kenny: <br /> Introduction <br /> Please find attached a copy of Lawrence &Associates' (L&A's) 1St-Quarter 2016 Groundwater- <br /> Monitoring Report dated April 12, 2016, for Diamond Pet Food Processors of Ripon, LLC (DP) <br /> and AltaGas Ripon Energy Inc. (Ripon Energy), 942 and 944 South Stockton Avenue, Ripon, <br /> California. <br /> The work described in this report fulfills the monitoring and reporting requirements set forth in <br /> Waste Discharge Requirements (WOR), Order R5-2012-0105, dated 4 October 2012, issued to <br /> DP and Ripon Cogeneration by the California Regional Water Quality Control Board, Central <br /> Valley Region (CVRWQCB). <br /> Essential Point(s) Of Report <br /> Groundwater chemistry in the semiperched aquifer is similar to previous monitoring events with <br /> groundwater quality either stable or improving under most of the site. <br /> The disposal of treated and diluted DP and Ripon Energy process water should not further <br /> degrade shallow groundwater quality as long as it is in compliance with the limitations <br /> established in WDR Order No R5-2012-0105. <br /> Violations Since Last Report <br /> No groundwater monitoring or reporting violations occurred at the DP and Ripon Energy site <br /> during the first quarter of 2016. <br /> Corrective Action Implementation Schedule <br /> Because the current levels of TDS and nutrients in the DP and Cogen effluent are below the <br /> limits set forth in WDR Order No. R5-2012-0105 for salinity and nutrients (TDS and total <br /> Park Seventeen,Suite 1040,1717 McKinney Avenue I Dallas,TX 75202 <br /> Main(469)904-5200 1 Fax(469)904-5201 <br />