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Soil Suitability and Nitrate Loading Study MONTOYA PROPERTY 10124 South Priest Road, French Camp, California 1.0. INTRODUCTION AND PROPOSED DEVELOPMENT AdvancedGeo, Inc. (AGI) has prepared this Soil Suitability and Nitrate Loading Study (Study) for the property located at 10124 South Priest Road, French Camp, California (site or subject property). The purpose of this Study is to determine the potential impact from nitrate loading and the suitability of the subsurface for an onsite wastewater treatment system (OWTS) due to the proposed development of a residence and septic system at the site, and the future use of the property. The study was performed in accordance with the requirements of Section 9-1105.2(d) of the San Joaquin County Community Development Department (SJCCDD). The scope of work included a soil percolation test, groundwater sampling of the onsite domestic water well, review of published soil and groundwater information, local septic use and permit research and estimated nitrate impact to soil and groundwater at the site. The site and surrounding area are illustrated in Figure 1. A site plan depicting structures, the percolation test hole location, and the planned locations of the proposed residence and septic system are illustrated in Figure 2. 1.1. DESCRIPTION OF SITE The location of the site, surrounding properties and general setting is illustrated on the Lathrop topographic map (7.5 Minute United States Geological Survey (USGS) Topographic Series, California). The site is located in the central portion of Section 15, Township 1 South, Range 6 East, Mount Diablo Base and Meridian (Figure 1). The map shows the property located at an elevation of approximately 22 feet above mean sea level in an area of low topographic relief. The regional slope of the area is relatively gentle and dips toward the southwest. The property is located on the east side of South Priest Road, approximately 450 feet north of the intersection of South Priest Road and East Galin Road, French Camp, California. The site consists of a 1.5-acre rectangular- shaped parcel identified as San Joaquin County Assessor Parcel Number (APN) 193- 220-670. The current use type of the property is vacant, and the current zoning is not listed. One water well is located on the property. No other structures are located on the property. According to the property owner, the onsite water well was used for irrigation and animals. The well may be able to provide potable water to the property if the well is determined to be adequate for residential use. If not, a new domestic water well may have to be installed to supply water to the property (Figure 2; Appendix A).