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�o e R s NI} <br /> o NEIL O. AERSON& ASSOCIATES,INC. _ <br /> . <br /> ,g, GEOTECHNICAL•ENVIRONMENTAL•GROUNDWATER•INSPECTIONS-TESTING•LABORATORY SERVICES <br /> >s �n V" SACRAMENTO OFFICE CORPORATE OFFICE <br /> Z ►u 4221 Northgate Boulevard,Suite 6 ' 22 Houston Lane <br /> CHICO_(530)89]-6344 - Sacramento,California 95834 Lodi,California 95240 <br /> q s P STOCKTON (209)472.109; 9 b6 929-9267 <br /> S p C RANCHO CORDOVA (916)631-4455 FAX: 9]6 929-9269 (209)367-3 701 <br /> ( } FAX:(209)"333-8303 <br /> June 11, 2003 <br /> SOIL S.UITABILITY/NITRATE LOADING STUDY' <br /> WEST VALLEY RV AND SALES <br /> 7890 W. ELEVENTH STREET, <br /> TRACY, CALIFORNIA _ <br /> OUR JOB NUMBER: LG03-137 <br /> 1.0 . INTRODUCTION <br /> Our office was contracted b Joe Da to conduct a <br /> Y Y soil suitability/nitrate loading study for the <br /> proposed RV sales facility located at 7890 W. Eleventh Street, Tracy,CA. (Plate 1) The <br /> Assessor Parcel Number for the site is 250-150-04 and the San Joaquin County site approval/use <br /> permit application number is PA-03-93. The site is 0.62 acres in size. <br /> Mr. Day has provided our. <br /> office'with a site plan originally drawn by FineLine Design. <br /> The Soil Suitabili /Nitrate Loading"Stud <br /> h' g y(SS/NLS) was conducted to determine whether the. <br /> soils are suitable for the use with a septic system and to estimate whether the proposed project- <br /> will impact'ground water quality. 'The study was performed according to the requirements of <br /> Section 9=1105.2(4) of the San Joaquin County Development. A major element of the field work <br /> include.d.conducting a percolation test that meets the required absorption rates'as required by San <br /> Joaquin County Public Health Service Environmental Health Division(EHD): <br /> In addition to-conducting the percolation test, a review of published soil information, geologic <br /> maps, and ground water information was performed to evaluate the suitability of soils for use <br /> -with a septic system. A water.sample was collected from the on-site water well through a spigot <br /> and was tested for nitrate and coliform. A nitrate loading balance was conducted to estimate any <br /> potential nitrat&impacts to ground water. <br />