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§ 1.0 INTRODUCTION AND PROPOSED DEVELOPMENT This Surface and Subsurface Contamination Report (SSCR) contains the results of my findings for property located on Tinnin Road south of Manteca, California. This report was prepared exclusively for Mr. and Mrs. Tony Dutra, Mr. &Mrs. Donavan Chavez, and the San Joaquin County Environmental Health Department (EHD). The purpose of this study was to investigate and identify real or potential surface and subsurface contamination existing within, or around the entire subject property and report the findings to the Client and the Environmental Health Department. According to the San Joaquin County Development Title, a Surface and Subsurface Contamination Report is required at the time of Tentative Map submittal. The San Joaquin County Development Title, Section 9-905.12 (a) states "A Surface and Subsurface Contamination Report shall identify any potential sources of surface and subsurface contamination caused by past or current land uses." The report shall include evaluation of nonpoint sources of hazardous materials including agricultural chemical residues and nitrate concentrations in the underlying groundwater. Potential point sources include fuel tanks, discarded items, septic systems, agrichemical applications and electrical transformers. No chemical analysis was conducted for this investigation, nor was there an inspection and testing of the on-site buildings for asbestos containing materials (ACMs). Interpretation of County Ordinance Section 9-905.12 (a)has been to focus on the subject property exclusively, unless it is documented or observed that an environmental concern in proximity to the subject property could potentially affect said property. This Surface and Subsurface Contamination approaches,but does not completely encompass the requirements of a Phase I Environmental Site Assessment(ESA) as promulgated by the American Society of Testing and Materials (ASTM E-1527-00). The Environmental Health Department recognizes that the Surface and Subsurface Contamination Report is not intended to completely fulfill the requirements of the Phase I ESA. The Department does however, maintain that certain components of the Phase I ESA must be applicable to the SSCR, as follows: Section 7.1.7 of the ASTM Document states under"Sources of Standard Source Information,"that "information or other record information from government agencies may be obtained directly from appropriate government agencies or from commercial services." § 1.1 The description of the site is as follows: The majority of the property is in fifth leaf almond orchard production. Two building pads have been prepared for residential homesite construction for family members. An existing home built in 1965, is the primary residence for Mr. and Mrs. Dutra. A barn is located to the east of this primary residence. A mobile home that is in the process of being removed, is located to the northeast of this barn. Zoning is AG-40. Page -2- Chesney Consulting