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24 March 2000 <br /> AGE-NC Project No 97-0141 <br /> Page 9 of 9 <br /> to advancement at each probe boring location Hollow-stem augers will be steam-cleaned prior to <br /> each boring <br /> 4 7 BORING ABANDONMENT <br /> All soil probe borings and soil borings not completed as monitoring wells, if any, will be <br /> permanently sealed to prevent vertical migration of potential contaminants Soil borings shall be <br /> abandoned by backfilling with bentonite or cement-bentonite slurry from the total depth to surface <br /> grade The PHS-EHD will be notified for grout inspection at least 72 hours prior to conducting <br /> grouting procedures <br /> 48 SENSITIVE RECEPTOR SURVEY <br /> A search for potential ground water conduits and receptors within a 2,000-foot radius of the site will <br /> consist of the following <br />. A search of driller's water well logs on file with the Department of Water Resources, <br /> • A reconnaissance of visually observable potential receptors, <br /> • A search for City for Stockton municipal well locations with Cal-Water, <br /> • A search for San Joaquin County water well locations with FHS-EHD, <br /> • A search for federal water wells with the Bureau of Reclamation, <br /> • A search for septic systems with the San Joaquin County Solid Waste Program <br /> Results of the receptor survey will be included with the report of findings <br /> Advanced GeoEnvironmental,Inc <br />