SR0082636_SSNL - Laserfiche WebLink

Home Browse Search

Soil Suitability and Nitrate Loading Study FREDRIKS PROPERTY 22895 South Austin Road, Manteca, 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 22895 South Austin Road, Manteca, California (hereafter referred to as site, subject property, or Remainder Parcel), identified as San Joaquin County Assessor's Parcel Number (APN) 226-150-280-000. The property is further located in unincorporated San Joaquin County, southeast of the City of Manteca, California, and west of the City of Ripon, California. The purpose of this Study is to determine the potential impact from nitrate loading and the suitability of the subsurface for onsite wastewater treatment systems (OWTS). The Study is required by San Joaquin County to facilitate a tentative Parcel Map to reapportion the existing parcel for a planned subdivision (Minor subdivision No. PA-2000069). The proposed subdivision annexes a 16.0-acre portion of parcel 226-150-270 (Parcel 1) onto adjoining parcel 226-150-280 (Remainder Parcel). 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. A site location map is included as Figure 1; a site plan depicting both parcels and the planned parcel boundary change is provided as Figure 2; and property improvement details including structures, septic systems, wells, and the percolation test hole locations are illustrated in Figure 3. 1.1. DESCRIPTION OF SITE The location of the site, surrounding properties and general setting is illustrated on the Ripon topographic map (7.5 Minute United States Geological Survey (USGS) Topographic Series, California). The site is located in the northeast portion of Section 22, Township 2 South, Range 7 East, Mount Diablo Base and Meridian (Figure 1). The map shows the property located at an elevation of approximately 47 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 west-southwest. The property is located on the west side of South Austin Road, approximately 2,500 feet north-northwest of the intersection of South Austin Road and West Ripon Road, Ripon, California. The site currently consists of a 40-acre parcel identified as APN 226-150-280. The current zoning of the property is agricultural. The entire site acreage is utilized as an almond orchard. Once the parcel reapportion is approved, the parcel will contain the