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Q: ] ERM-West,Inc. <br /> 1777 Botelho Drive <br /> _ Suite 260 <br /> May 16, 1994 Walnut Creek, CA 94596 <br /> 1 (510)946-0455 <br /> (510)946-9968(Fax) <br /> ` l" <br /> Ms. Mary Meays MAY 1 7 1991 <br /> Senior REHS <br /> San Joaquin County Public Health Services ENVIRONMENTAL HEALTH <br /> Environmental Health Division PERMIT/$ERViCEs <br /> 445 North San Joaquin Street <br /> Stockton, California 95201' <br /> Subject:. Response to Comments on - ERM <br /> Soil Remediation Activities <br /> and Closure Report <br /> 1325 &1515 West Weber-Avenue <br /> Stockton, CA -.. <br /> Dear Ms. Meays: <br /> On behalf of Catellus Development Corporation (Catellus), EkM-West,-Inc., has <br /> reviewed your letter of April 4, 199.4 in which you transmitted.comments on <br /> the Soil Remediation Activities and Closure. Report (dated:March 2,-1994) for <br /> the properties at1325 and 1515 West Weber Avenue in Stockton, California. <br /> This letter addresses comments in.the April 4 letter. <br /> i _ <br /> t <br /> The text of each comment is reproduced below in italics. The text that follows... <br /> addresses each of the comments.- <br /> GENERAL COMMENTS <br /> t <br /> Significant contamination has -been evidenced in the area of former:- tank #1 <br /> and #2 which requires additional _investigation .to determine-.its extent. <br /> PIease submit a work plan .by May 25, 1994. to continue the-:soil investigation. <br /> i As agreed with Catellus, a workplan for_.additional investigation activities <br /> s will be prepared and submitted to'the_San Joaquin County.Public Health <br /> r Services Environmental Health Division (PHS/EHD) by-May 25, 1994. <br /> The confirmation-.soil samples -did not undergo 'EPA _Method- 5020 as <br /> published. Extensive modifications of -the -Method occurred which were not <br /> approved. <br /> t The soil confirmation samples were analyzed by Transglobal- Environmental- <br /> Geochemistry <br /> nvironmental- <br /> Geochemistry (TEG), Inc. utilizing a liquid-solid'extraction procedure with <br /> freon rather_.than a purge and trap sample preparation. As has been <br /> previously discussed with PHS/EHD both verbally and in correspondence, <br /> webelieve the data generated by this procedure is valid-, accurate, and . <br /> therefore acceptable. However, as.agreed with Catellus, several soil samples <br /> A Member of the Environmental <br /> Resources Management Group- <br /> 4 <br />