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LOGE 1903: Coldani NLS Addendum Page 3 <br /> March 21, 2019 <br /> Based on the method and assumptions described, the result of the nitrate loading <br /> estimate indicates that the existing and proposed development on the Site should not <br /> cause a buildup of nitrates in the aquifer above 10 mg/L-N. <br /> Although elevated levels of nitrate are already present in the area, based on the low <br /> effluent flows anticipated from the subject project, it is not anticipated that the project <br /> will significantly contribute to nitrate build-up in the area. No nitrate mitigation measures <br /> are recommended. <br /> Sincerely, <br /> Live Oak GeoEnvironmental, Inc. <br /> NA FL <br /> \ QS\pNA <br /> Abigail Racco, REPA <br /> 4� DAVID J.W&CH DAVID J.WELCH ,a <br /> * N0.2151 a NO.W iA <br /> CERTIFIED <br /> ENGINEERING HY(IHOG '�I <br /> GEOLOGIST <br /> David J. Welch, CEG, CHG, PGP OFCAUF OF CAS <br /> CC: Steve Coldani <br /> Coldani Family Vineyards <br /> Coldani Olive Ranch <br /> 1806 W. Kettleman Ln. <br /> Lodi, CA 95242 <br /> Attachments: <br /> Plate 1. Recharge Calculation (Evapotranspiration Method), Staten Island Station <br /> Plate 2. Nitrate Loading Calculation (Evapotranspiration Method) <br />