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T INTRODUCTION Mr. Andrew Sephos is creating three parcels from property he owns at 15444 South Mitchell Road in Manteca, CA. According to the San Joaquin County Development Title, a Surface and Subsurface Contamination Report (SSCR) must be conducted prior to the time of Tentative Map submittal. The purpose of this report was to investigate the subject property for real or potential environmental contamination and report the findings to the Client and the San Joaquin County Environmental Health Department. This report complies with the San Joaquin County Ordinance, specifically 9-905.12(a) for a Surface and Subsurface Contamination Report. In addition, the report addresses and evaluates non-point sources of hazardous materials, as well as potential point sources. Non-point sources of hazardous materials include agricultural chemical residues, high concentration of nitrate laden groundwater and other contaminants which may have originated from a wide area. Point sources investigated include fuel storage tanks, septic systems and/or chemical storage areas. No chemical analysis was conducted for this investigation, nor was there an inspection of the existing residential structure (the Sephos Residence) for asbestos containing materials (ACMs). Since this structure is relatively new,there should be no ACM concern. The domestic well serving this house has been tested for nitrates and the agrichemical dibromochlorpropane (DBCP) to fulfill the requirements of a Nitrate Loading and Soil Suitability Studies. These Studies were completed on December 8, 2000 (See VAR#NLS-07.00) and also required by the San Joaquin County Environmental Health Department since this project is in an unsewered area. SITE DESCRIPTION As illustrated on the attached Tentative Map,the three Parcels proposed are referenced as the Designated Remainder, Parcel 1 and Parcel 2. They comprise a rectangular shaped, flat 6.6 acre parcel with the Designated Remainder containing the Sephos residence built five years ago. Parcels I and 2 are currently planted in fifth leaf almond trees. The site address and Assessors Parcel Numbers are referenced on the Title Page. The site is bordered to the north and west by agricultural production Iand, and to the east, south and southeast are rural, single family housing and ranchettes. The subject property is currently zoned AU-40. There is a South San Joaquin Irrigation District easement traversing the subject property separating proposed Parcels 1 and 2. The region has been dry land and irrigated farmed, particularly in orchards, pasture, and row crops for the last several decades. There is very slight possibly of minute volumes of pesticide drift originating from the surrounding almond acreage to the north and west. Irrigation is by flooding with water from the Irrigation District. An on-site domestic well and septic system serves the house. Storm drainage flows to the "front" of the almond orchard, adjoining Mitchell Road. The property is not subject to the 100-year flood. 2 VaCley Ag research