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MEMORANDUM <br />Civil, <br />Environmental <br />Et Water <br />Resources <br />ENGINEERING CORP. <br />TO: Kasey Foley, REHS <br />Interim Director, San Joaquin Environmental Health Department <br />FROM: Norman Hantzsche, PE, Questa Engineering Corporati9 <br />DATE: December 18, 2019 <br />SUBJECT: FINAL - OWTS Design Review for Heaven Temple Project, 3732 East Carpenter <br />Road, Stockton <br />In my- design review memorandum of November 19, 2019, I indicated disagreement with the use <br />of average rainfall data as the assumed value for rainfall recharge in the nitrate loading <br />calculations for the project. On December 17, 2019, the project consultant, Don Chesney, <br />submitted revised nitrate loading analysis using a water balance approach for recharge <br />calculations consistent with my review comments and recommendations. I have reviewed and <br />concur with the revised analysis submitted by Chesney Consulting, which indicate an acceptable <br />resultant nitrate concentration of 6.7 mg-N/L for the proposed project. <br />Box 70356, 1220 Brickyard Cove Rd. Suite 206 Pt. Richmond, CA 94807 T.- 510/236.6114 F. 510/236.2423 E: Questa@QuestaEC.com <br />