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4 <br /> F1 <br /> GEOTECHNICAL <br /> NEIL. O. ANDERSON i ENVIRONMENTAL <br /> A N D ASSOCIATES <br /> INSPECTIONS & TESTING <br /> LABORATORY SERVICES <br /> POOL ENGINEERING <br /> FiPOST TENSION DESIGN <br /> July 11, 2007 <br /> NO1 <br /> A Project Number <br /> E07094A <br />'I Page 2 <br /> PART II: NITRATE LOADING STUDY <br /> 3732 EAST CARPENTER ROAD <br /> STOCKTON, CALIFORNIA <br /> �i <br /> , INTRODUCTION <br /> Our office was contracted by Mr. Poeun Hib of the Carpenter Road Buddhist Temple in Stockton <br /> to conduct a Nitrate Loading Study (NLS) for the property at 3732 East Carpenter Road, Stockton, <br /> California. Please refer to the relevant sections of the 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 /> Because 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 /> 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 /> reach ground water. <br /> The method utilized forthe ate loading analysis_is_based on a simple mass balance formula, <br /> discussed in a publis_ hed article by„�antzs.&c and,.l nnemare,(1�92},which provides a convenient <br /> 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 /> saturated ground-water zone closely approximates the quality of percolating recharge waters. They <br /> believe that their method is a good planning tool to estimate the potential impact to groundwater, <br /> and provides useful information to planners and local officials but with some real limitations. In <br /> Ftheir article published in Ground Water, Hantzsche and Finnemore mention that"...the equation <br /> F <br /> 2 <br /> LODI ■ SACRAMENTO ■ MDESTO 1 <br /> ENVIRONMENTAL DIVISION 902 Industrial Way,Lodi,California 95240 0209 1.367.3701 ■ 209.369.4228 ■www.noar. <br /> '004 <br /> F1 <br /> k <br />