Laserfiche WebLink
LOGE 1938: Kusalakari NLS Addendum Page 4 <br /> November 20, 2019 <br /> The details of the nitrate loading calculation are included in the attached plate. The <br /> results of the calculation are presented in the following table: <br /> Table 6. Result of Nitrate Loading Calculation <br /> Variable Value Units Description <br /> Nc 14.7 mg/L-N Long-term average concentration of percolating effluent <br /> The US EPA recommended MCL for nitrate in drinking water is 10 mg/L-N. In a worst- <br /> case situation, the maximum buildup of nitrates in the aquifer from the use of septic <br /> systems on the Site is predicted to be 14.7 mg/L-N. The result of the nitrate loading <br /> estimate exceeds the maximum drinking water standard. <br /> For greater protection of the ground water, it is recommended that only shallow septic <br /> systems utilizing leach lines or filter beds be installed rather than deeper sumps. We <br /> understand that recent San Joaquin County Environmental Health Department policy <br /> has been to evaluate each project on a case-by-case basis to determine whether <br /> additional measures to mitigate nitrate should be employed. <br /> Please feel free to contact us with any questions about the revised calculation. <br /> Sincerely, <br /> Live Oak GeoEnvironmental, Inc. <br /> NAL NAL G <br /> GFS 550 fpm <br /> Abigail Racco, REPA <br /> aQ DAVID J.WELCH `t'� e DAVID J.WELCH <br /> _ * <br /> NO.2151 .r a ' 0.653 �r <br /> CERTOED CERTM <br /> ENGINEERING1Yr(50 LL — R0(E01DGsr <br /> GEOLOGIST Q <br /> David J. Welch, CEG, CHG, PGPOFCA��F���\P SCFCAt� <br /> CC: Brian McNamara <br /> 58793 Road 225 <br /> North Fork, CA 93643 <br /> Kusalakari Corporation <br /> 9698 S. Priest Rd. <br /> French Camp, CA 95231 <br /> Attachment: <br /> Plate 1. Revised Nitrate Loading Calculation <br />