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L <br /> GEOTECHNICAL <br /> NEIL O. ANDERSON ENVIRONMENTAL <br /> A N D A S S O C I A T E S INSPECTIONS a TESTING <br /> LABORATORY SERVICES <br /> I POOL ENGINEERING <br /> L POST TENSION DESIGN <br /> June 10, 2005 <br /> NOA Project Number: E05070A <br /> L <br /> PART II: NITRATE LOADING STUDY <br /> NEWTON ROAD MINI STORAGE <br /> L3827 NORTH NEWTON ROAD <br /> LSTOCKTON, CA 95205 <br /> APPLICATION NUMBER: PA-04-768 (SA) <br /> L <br /> LINTRODUCTION <br /> Our office was contracted by Associated Engineering Group Inc. to conduct a Nitrate Loading <br /> Study (NLS) for the proposed site approval at 3827 North Newton Road,Stockton, California. <br /> Please refer to the relevant sections of the attached Soil Suitability Study (SSS) for introductory <br /> project details. <br /> To expedite San Joaquin County Environmental Health Department (EHD) review,the <br /> formatting of this report has been designed to follow, to the greatest degree possible, the <br /> structure of the EHD's Nitrate Loading Study Requirements Checklist, dated July 14,2003. <br /> LBecause of concern regarding nitrate leaching into ground water from septic systems,a nitrate <br /> loading analysis was required by the EHD for the proposed development to measure the potential <br /> l` concentration of percolating effluent and rain fall over the long term. Where percolating effluent <br /> leaches into the ground,ground water quality may be impacted to some degree should the effluent <br /> Lreach ground water. <br /> The method utilized for the nitrate loading analysis is based on a simple mass balance formula, <br /> discussed in a published article by Hantzsche and Finnemore (1992),which provides a convenient <br /> L and simplified method to estimate long-term ground-water nitrate impacts on an area-wide basis. <br /> Hantzsche and Finnemore found that over a long period of time,water quality in the upper <br /> L saturated ground-water zone closely approximates the quality of percolating recharge waters.They <br /> believe that their method is a good planning tool and provides useful information to planners and <br /> LLODI ■ SACRAMENTO ■ MODESTO <br /> ENVIRONMENTAL DIVISION 902 Industrial Way,Lodi,California 95240 ■209.367.3701 ■ 209.369.4228 ■w .noandersonxom <br /> L <br />