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INTRODUCTION Mr. and Mrs. Stephen Wesely are creating a second parcel from property Mrs. Wesely's Parents own at 27539 South Lammers Road in Tracy, CA. The purpose of this study is to comply with the initial requirements of the San Joaquin County Environmental Health Department (PHS- EHD) for land subdivision. According to the San Joaquin County Development Title, a Surface and Subsurface Contamination Report (SSCR) must have been conducted at the time of Tentative Map submittal. This study investigates the subject property for real or potential environmental contamination and reports the findings to the Client and the San Joaquin County Environmental Health Department. Our report complies with the San Joaquin County Ordinance, specifically 9-905.12(a) for a "Surface and Subsurface Contamination Report." In addition, this report addresses and evaluates non-point sources of hazardous materials, as well as potential point sources. Non-point sources of hazardous materials or "constituents of concern" 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, pipelines, septic systems and/or chemical storage areas. No chemical analysis was conducted for this investigation nor was there an inspection of the existing buildings for asbestos containing materials (ACMs). An analysis of the domestic well serving the existing house was not tested for nitrates and the agrichemical dibromochlorpropane (DBCP). SUBJECT SITE AND SURROUNDING AREA DESCRIPTION As illustrated on the attached Parcel Detail Map, the subject property consists of a rectangular- shaped, flat, 8.962 acre parcel. The site address and Assessor's Parcel Number are denoted on the Title Page. As indicated on the Parcel Detail Map, the new parcel is proposed to be created by financial parceling to create the future homesite. The site is bordered to the north and east by agricultural production land and low density, single family housing (ranches and ranchettes). The Delta Mendota Canal is located to the south and west of the subject property. There is an easement on the property for an irrigation water line. The proposed future parcel is currently planted in almond trees. The trees are in poor condition due to neglect for the last two years by the previous owner. Therefore, there has been no application of pesticides for at least this time period. The existing parcel which contains the single family residential structure is open land with a baseball field. An on-site domestic well and septic system serves the house. According to the Environmental Health Department, a well must be constructed to serve the new parcel. Storm drainage flows to the open field and the property is not subject to the 100-year flood. 1 valley ALB Research