Laserfiche WebLink
PEA! <br /> Advanced l i- <br /> GeoEnvlronmental;9InO'g, -o <br /> of Northern California <br /> 07 April 1997 <br /> AGE-NC Project No. 96-0235 <br /> Mr. Steve Sasson <br /> SAN JOAQUIN COUNTY PHS-EHD <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, CA 95202 <br /> Subject: West Clay Properties <br /> 655 West Clay Street, Stockton, California <br /> Dear Mr. Sasson: <br /> As a follow up to our telephone cotwersation of 218 March 1997, we have the following comments <br /> concerning additional investigation at 655 West Clay Street, Stockton, California (the site): <br /> • Soil presently stockpiled at the north end of the site will be used to backfil I the former UST <br /> excavation. Since additional fill material will be needed, it will be imported to the site and <br /> used to backfill the bottom five feet of the excavation. The area will then be covered with <br /> asphalt. West Clay Properties would like to initiate backfill procedures on 10 April 1997. <br /> • Only low concentrations of petroleum hydrocarbons were detected in grab ground water <br /> samples collected from probe borings B-6 and B-8, advanced in November 1996. "Therefore, <br /> we anticipate the locations of B-6 and 13-8 represent the up-gradient and down-gradient <br /> extent of the dissolved hydrocarbon plume. <br /> • Ground ,vater has risen above the screened intervals in all monitoring wells at t'-:e site. <br /> Therefore, ground water samples collected from these wells may not be representatives of <br /> actual aquifer conditions. Additional ground water monitoring wells will be necessary at the <br /> site. <br /> • Advanced GeoEnvironmental, Inc. (AGE) will submit a Work Plan Addendum for the <br /> installation of the additional monitoring wells. The wells will be installed near The locations <br /> of borings B-6 and B-8. Upon installation of the monitoring wells, --round water samples will <br /> be collected from all wells at the site. <br /> • The necessity for ground water remediation will be detern-iined based upon analytical results <br /> of ground water samples. <br /> • AGE will provide the PHS-EHD will analytical results of ground water samples collected <br /> 1803 West March Lane, Suite A,Stockton,California 95207 <br /> Telephone(209)956-0264 FAX(209)956-0700 <br />