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845 Pine Street <br /> Page 2 <br /> It should be noted that the tank designation at the time of soil sampling must have <br /> been switched based on analytical results. PHS/EHD provided the previous summary <br /> since it was neglected in the report submitted. <br /> Soil contamination was detected in SBI at 5.5 feet below grade and in S85 at 11 and <br /> 16 feet below grade. The report failed to estimate any potential threat to groundwater <br /> which the documented soil contamination may pose in the sandy soils of the site. I <br /> Also, the report failed to include the professional registration of the engineer who <br /> signed the report. <br /> PHS/EHD does not concur with the recommendation to close the site. PHS/EHD was <br /> informed by a Caltrans representative that the investigation was designed to , <br /> determine the extent of soil contamination which would be excavated prior to a j <br /> request for site closure as well as to investigate the necessity to perform a <br /> groundwater investigation following the excavation of contaminated soil. <br /> Hopefully, the information which has been provided will aid in the further evaluation of <br /> remedial efforts and/or evaluation of the potential threat to groundwater. Please <br /> submit a corrective action plan as defined by California Underground Storage Tank <br /> Regulations by January 15, 1996. � <br /> Please contact Mary Meays at (209) 468-0337, if you have any questions. <br /> Donna Heran, RENS, Director <br /> Environmental Health Division <br /> / IL � <br /> Mary Meays, Senior REHS Diane M. Hinson, REHS <br /> Site Mitigation Unit Supervisor <br /> MM/845PIN <br /> cc:; Elizabeth Thayer, CVRWQCB <br /> cc:' Gordon Marts, Caltrans <br /> cc: Richard Walls, GeoCon <br />