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` - P ID E R S�'I- NEIL O. AN1�2SON &ASSOCIATES, INC. �J <br /> GEOTECHMCAL•ENVIRONMENTAL•GROUNDWATER.INSPECTIONS•1'FSTING• RATORY SERVICES <br /> SACRAMENTO OFFICE CORPORATE OFFICE <br /> N 4229 Northgate Boulevard,Suite 3 22 Houston Lane <br /> W <br /> V Q /� CHICO (530)891b30/ Sacramento,California 95834 Lodi,California 95240 <br /> p STOCRTON (29)472-1091 (916)929-9267 (209)367-3701 <br /> 'S S c G� RANCHOCORDOVA (916)631-0455 FAX:(916)929-9269 FAX:(209)333-8303 <br /> February 25, 2002 <br /> SOIL SUITABILITY/NITRATE LOADING STUDY <br /> CHINCHIOLO FRUIT COMPANY(SA-01-74,LA-01-95) <br /> 4799 N.JACK TONE ROAD <br /> 6. STOCKTON,CALIFORNIA <br /> ` OUR JOB NUMBER: LGOI-397 <br /> 1. INTRODUCTION <br /> Our office was contracted by Mr. Robert Chinchiolo of Broadway Investments to conduct <br /> a Soil Suitability/Nitrate Loading Study for a proposed 28.40-acre property whose assessors <br /> parcel number is 089-170-51. The address of the property is 4799 North Jack Tone Road, <br /> Stockton, California(Plate 1). The soil suitability/nitrate loading study was required by San <br /> Joaquin County for site approval SA-01-74. Later, a lot line adjustment was performed whose <br /> number is LA-01-95. The proposed lot line adjustment will increase the size of the site to 28.40 <br /> acres. <br /> The Soil Suitability/Nitrate Loading Study was conducted to determine whether the <br /> 6. soils are suitable for the use of a septic system and to estimate whether the proposed project will <br /> impact ground-water quality. The study was performed according to the requirements of <br /> ` Section 9-1105.2(d) of the San Joaquin County Development. Major elements of the field work <br /> included conducting a percolation test that meets the required absorption rates as required by San <br /> Joaquin County Public Health Services in a letter dated October 23, 2001,Requirement A. <br /> In addition to conducting the field work,a review of published soil information, geologic <br /> maps, and available ground water information was performed to determine the suitability of soils <br /> for use with a septic system. In addition, water sample was collected from the on-site water well <br /> and was tested for nitrate and DBCP. A nitrate loading balance was conducted to estimate any <br /> potential nitrate impacts to ground water. <br /> Our office was asked to determine whether to upgrade an existing septic system or <br /> recomme^ »lrii72g a new septic Presently two septic systems exist on the property, <br /> one located on the east side and another on the west side of the facility (Plate 1). The eastern <br /> septic system has not r)erformed a uateIX during periods of heavy use. During last June and <br /> L <br />