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April 13, 2020 <br />FOR: San Joaquin County Environmental Health Department <br />Mr. Michael Kith, REHS, Program Manager <br />Mr. Jeffrey Wong, REHS <br />1868 Hazelton Ave. <br />Stockton, CA 95205 <br />PROJECT: Nitrate Loading/Soil Suitability Studies <br />Robert C. Bowen Property <br />26783 North Cherokee Lane <br />Lodi, California 95632 <br />Assessor's Parcel Number: 005-110-13 <br />SR0078905 <br />SUBJECT: Response to EHD Review Document <br />Reference is made to the attached EHD Review Document dated February 8, 2019. I have been asked to <br />respond to Item 2 of this document. The first sentence of Item 2 states "The data indicates the onsite water <br />well has elevated level of nitrate and may not be a suitable source for the potable water supply for new <br />development." Attached, is Page 5 and Table 3 from my Studies summarizing the Well Water Analysis. <br />As noted, the Analyte in column one is for "Nitrate as Nitrate," not "Nitrate as Nitrogen." The <br />concentration found was 15 ppm in column two. The third column indicates the Maximum Contaminant <br />Level (MCL) to be 45 ppm. <br />When nitrate test results are issued as "nitrate as nitrate," the MCL is 45 ppm (actually 44.43 ppm). When <br />nitrate test results are issued as "nitrate as nitrogen," the MCL is 10 ppm. As noted on the A&L <br />Laboratories Water Analysis Report, the Analyte tested was for Nitrate, not Nitrate -Nitrogen. Therefore, <br />the water test results are actually one-third of the MCL for nitrate. This nitrate test result was confirmed <br />with Mr. Robert Butterfield, owner of A&L Laboratories West. <br />Respectfully submitted, <br />CHESNEY CONSULTING A%11i <br />No. 75A79 <br />Don Chesney, PE `P�a Civil <br />Registered Civil Engi er #C75479 to Of Calif°fir <br />Attachments: <br />1. EHD Review Document (February 8, 2019) <br />2. Page 5, Chesney Consulting Nitrate Loading/Soil Suitability Study <br />3. A&L Laboratories Well Water Analysis <br />P.O. Box 3794 ❑ Turlock, CA 95381 ❑ 209.402.1652 ❑ ddchesngy(& charter.net <br />