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B`;' =LN`'T'-it! E(': IFO= it,SITAL. - 1-D1 20PM v�.rT 33:# _ <br /> `mss ..es MILn <br /> Fate of Monitoring Well <br /> Installed for Choundwater Sampling <br /> at <br /> 222 North El Dorado Street <br /> in <br /> Stockton, California <br /> 1.01�I <br /> American Savings Bank retained Clayton Environmental Consultants, Inc. to install <br /> and sample; E. rnor.4tcartug well at its property located at 222 North El Dorado Street <br /> in Stockton, This wort is being done after a phase I environmental <br /> n ent conducted by Clayton revealed that there was a car repair shop with <br /> documented environmental problems within 200 feet upgradient to crossgradient of <br /> the subject site. <br /> 7.0 <br /> h., objective of this work will he to determine whether the groundwater beneath <br /> the: Ae is contaminated with petroleum hydrocarbons that have migrated from the <br /> car repair shop. We will install one groundwater monitoring wed to obtain soil <br /> aamples and a groundwater sample. <br /> If the laboratory results indicate that the groundwater hem been impacted`vith <br /> hydrocnrbona, and they are present above their action levels, more work will be dons: <br /> to eharactm-1vi the site and the well will be left in place. <br /> If the laboratory results show hydrocarbons at low levels and below action levels, the <br /> well will be left in place for groundwater monitoring until it is no longer deemed <br /> necesQary or further site characterization is required. If the groundwater sample <br /> from the monitoring well is below detection limits for the constituents for which it is <br /> analyzed, or after it is no longer needed for groundwater monitoring, the well will be <br /> properly abandoned. <br /> If the well will be abandoned, it will be done by following these steps: <br /> 1. The well will be overdrilled with a larger auger than used. to ':Mall the <br /> original borehole for the well. <br /> 2. The easing will be removed through the center of the auger. <br /> 3. The borehole will be backfilled with a neat cement slurry. <br /> i <br /> 4. The top foot of the borehole will be capped with concrete. <br /> The necessary permits will be obtained before any additional wells are installed or <br /> the existing well is abandoned. <br />