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10 June 2014 <br /> AGE Project No. 14-3035 <br /> Page 6 of 16 <br /> 4.2. GROUND WATER CONTAMINATION IN THE AREA OF THE SITE <br /> The immediately adjacent and outlying land use for the parcel is agricultural in nature. <br /> There are potential ground water contamination issues associated with agricultural uses <br /> and local septic systems. A review of the California Department of Toxics and <br /> Substance Control (DTSC) Envirostor Database and the Geotracker Web site revealed <br /> two leaking fuel underground storage tank (LUST) site within a one-mile radius of the <br /> site. The site has been closed for more than 10 years and is located more than one-mile <br /> from the subject parcel. <br /> 4.3. ON-SITE EXISTING WELL DESCRIPTION <br /> The existing water supply well was installed or retrofitted in March 1990 with a six-inch <br /> casing. The grout seal was installed from the surface to approximately 85 feet bsg. The <br /> well will be utilized for both domestic purposes. An existing well is used for agricultural <br /> purposes or irrigation. <br /> 4.4. CONSTITUENTS BEING TESTED FOR IN THE WATER SAMPLE <br /> Nitrate (NO3) and dibromochloropropane (DBCP) constituents were tested in the current <br /> groundwater supply well. <br /> 4.5. GROUND WATER SAMPLE COLLECTION <br /> On 17 March 2011 a sample of the drinking water supplied by the current groundwater <br /> supply well was collected in three unpreserved volatile organic analysis (VOA) vial and <br /> a one-liter plastic container for shipping. Groundwater sample containers were properly <br /> labeled, placed in a chilled container and transported under chain-of-custody protocols <br /> to Cal Tech Environmental Laboratories (CTEL), a California Department of Public <br /> Health-certified laboratory, for analysis (Nitrate (NO3) and dibromochloropropane <br /> (DBCP) constituents). <br /> 4.6. GROUND WATER ANALYTICAL REPORT <br /> CTEL laboratory reports with quality assurance/quality control (QA/QC) reports and <br /> chain-of-custody forms, will be supplied. <br /> Advanced GeoEnviron mental,Inc. <br />