Laserfiche WebLink
l <br /> r <br /> Chevron <br /> 1% Chevron <br /> May 12, 1995 Chevron Pipe Line Company <br /> y 4000 Executive Parkway,Suite 400 <br /> San Ramon,CA 94583 <br /> 17 1995 P.O.Box 5059 <br /> San Ramon,CA 94583-0959 <br /> Mr. Ronald M. Llewellyn ENVII ONMES AICEAJH <br /> D.0.Culbertson <br /> Homer J. Olsen, Inc. Site Remediation Specialist <br /> P. O. Box 993 (510)842-6930 <br /> Union City, CA 94587 <br /> Former Standard Oil Pump Station <br /> 35500 Welty Road <br /> Vernalis, CA <br /> Dear Mr. Llewellyn: <br /> Thank you for your letter of February 13, 1995 (attached) transmitting the Geological <br /> Technologies Inc.'s Preliminary Environmental Site Assessment report dated February 6, 1995 to <br /> Chevron Pipe Line Company(CPL). The letter also requests a response regarding CPL's <br /> potential responsibility for petroleum hydrocarbons reported in the subsurface at the subject <br /> property. CPL does not feel that enough information has been presented to date to clearly <br /> implicate CPL as a responsible party. <br /> The report provides a discussion of the past use of the property and the results of a limited <br /> subsurface investigation. Upon review of this report, it is CPL'S position that not enough specific <br /> data has been presented to determine if past CPL(formerly operating as Standard Oil Company) <br /> activities are the source of petroleum hydrocarbons reported at the subject property. This <br /> contention is based on the following items: <br /> • The Geological Technologies Inc. report clearly states that there may be multiple sources for <br /> the petroleum hydrocarbons reported at the site. <br /> • The data presented in the report does not clearly define the type of petroleum hydrocarbons <br /> present within the subsurface. Laboratory methods 8015 (total extractable petroleum <br /> hydrocarbons; TEPH) and 418.1 (total petroleum hydrocarbons; TRPH) are non analyte- <br /> specific analytical techniques susceptible to multiple positive interferences from non-petroleum <br /> sources. Therefore, the specific type(s) and source of the petroleum hydrocarbons are <br /> undefined. <br /> A letter addressed to Robert Roberts of Roberts Enterprises from the San Joaquin County Public <br /> Health Services was distributed to CPL(attached). The letter states that the subject property has <br /> been assigned to the San Joaquin County Public Health Services,Environmental Health Division's <br /> (PHS/EHD)Local Corrective Action Program(CAP). Based on the fact that the available <br />