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Response: If further sampling is performed the lower <br /> detection limits will be used. The soil results <br /> indicate that if there is any contamination, it <br /> is very minor. <br /> 3. Question: WaterWork states on page 1 of this report that <br /> the investigation was conducted in accordance <br /> with their April 20, 1989 proposal . This <br /> proposal states that four monitoring wells and <br /> two soil borings would be drilled during the <br /> field investigation. Only one monitoring well <br /> and one soil boring were attempted at this site. <br /> Further investigation may be required, including <br /> the installation of these remaining monitoring <br /> wells after the evaluation of the resampling <br /> results for the domestic and monitoring wells <br /> located at the site. <br /> Response: Monitoring well 1 was installed next to the <br /> product line leak to determine the vertical <br /> extent of soil contamination. Field observations <br /> and the confirming laboratory analyses did not <br /> detect contamination below 10 feet. Because of <br /> this the additional wells and borings were not <br /> necessary. <br /> 4. Question: All residual contaminants detected during field <br /> investigations should be addressed. Discuss and <br /> investigate the source of motor oil and diesel <br /> contamination found in the June 27, 1988 soil <br /> analyses. <br /> Response: The City of Stockton does not and has not ever <br /> had a motor oil/waste oil tank on the police <br /> facility. The diesel tank is used to fuel backup <br /> generators for the facility. This tank has <br /> always passed its integrity tests. To ensure <br /> that the groundwater has not been impacted by <br /> these compounds. The domestic and monitoring <br /> well samples will be analyzed for diesel and oil <br /> and grease in addition to BTEX and TPHG. <br /> 5. Question: Show the tanks (labeled with size and product), <br /> dispensers, buildings and wells on a site map <br /> with the surrounding streets labeled. <br /> Response: Figure 1 shows the tanks, dispensers, buildings <br /> and wells on the Police facility. <br />