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P p E R$ NEIL O. ANDERSON & ASSOCIATES, INC. <br /> GEOTECHNICAL•ENVIRONMENTAL•GROUNDWATER•INSPECTIONS•TESTING•LABORATORY SERVICES <br /> SACRAMENTO OFFICE CORPORATE OFFICE <br /> Z W 4229 Northgate Boulevard,Suite 3 22 Houston Lane <br /> A. CMCO (530)891-6304 Sacramento,California 95834 Lodi,California 95240 <br /> q p -1091 -9267 (209)367 <br /> -3701STOCKTON (209)4n <br /> sSpG` <br /> RANCHOCORDOVA (916)631-455 FAX:(916)929-9269 FAX:(209)333-8303 <br /> July 21, 2003 <br /> SOIL SUITABILITY/NITRATE LOADING STUDY <br /> PROPOSED LOT LINE ADJUSTMENT <br /> 16910 SOUTH NORTH RIPON ROAD <br /> RIPON,CALIFORNIA <br /> OUR JOB NUMBER: LG03-120 <br /> 1.0 INTRODUCTION <br /> Per the request of John Glick of Quartroli &Associates, Manteca, our office conducted a Soil <br /> Suitability/Nitrate Loading Study (SS/NLS) for a proposed lot line adjustment involving six <br /> parcels. Parcels one through five will be adjusted to two acres each, and parcel six will be <br /> adjusted to approximately 70 acres. Three of the five, 2-acre parcels are located in a cherry <br /> orchard, and the other two parcels are located in a walnut orchard. One house, one garage, one <br /> garage/living unit, and one barn are currently located on the northwestern corner of the property. <br /> Four wells exist on the property, one for domestic use and three for agricultural use. The <br /> locations of these wells can be found on the site plan (Plate 1). The parcels are located along the <br /> east side of North Ripon Road, and 2700 feet north of Highway 120. The assessors parcel <br /> number for the property is 203-080-22. <br /> The soil suitability/nitrate loading study was required by the San Joaquin County Environmental <br /> Health Department (EHD)to determine whether the soils are suitable for the use of a septic <br /> system and to estimate whether the proposed project will impact ground water quality. The study <br /> was performed according to the requirements of Section 9-1105.2(d) of the San Joaquin County <br /> Development Title. Field work involved drilling one percolation test hole and one percolation <br /> test on each parcel. <br /> In addition to conducting the field work, a review of published soil information, geologic maps, <br /> and available ground water information was reviewed to determine the suitability of soils. The <br /> nitrate loading study was conducted to estimate the potential impact of leaching nitrates from the <br /> septic system into ground water. This report presents the results of our study. <br />