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CONDOR EARTH TECHNOLOGIES INC <br /> y 188 Frank West Circle Suite I <br /> Stockton CA 95206 <br /> Phone 209.234.0518 <br /> FAX 209.234.0538 <br /> CONDOR www.condorearth.com <br /> May 28, 2003 � <br /> Ms. Donna Heran MPS 3 rG�,�jH <br /> San Joaquin County Environmental Health Department 00i ES <br /> 304 E. Weber Avenue, 3rd Floor ENpER���ISER��C <br /> Stockton, CA 95202 <br /> Re: Attached Work Plan and Site Closure Request,Pilkington North America, 500 East Louise, <br /> Lathrop, San Joaquin County, California <br /> Condor Project No.3151J <br /> Dear Ms.Heran: <br /> Please find attached a Work Plan for Groundwater Monitor Well Sampling and Groundwater <br /> Investigation prepared by Condor Earth Technologies, Inc. (Condor) for two underground storage tank <br /> (UST) sites at the above referenced facility. Site maps for each of the two UST sites are included in the <br /> work plan. The work plan is submitted in response to your April 11, 2003 letter to Mr. Mike Bowles, <br /> formerly with Pilkington North America (PNA). Your letter requested the submittal of the work plan by <br /> June 1, 2003 to describe monitor well sampling at the site associated with the 1986 and 1987 underground <br /> storage tank(UST)removals and groundwater investigation at the 1997 UST removal site. <br /> On behalf of PNA, Condor respectfully requests closure of the site associated with the 1986 and 1987 <br /> UST removal. Woodward-Clyde Consultants (WCC)recommended site closure in their October 9, 1987 <br /> report. WCC based their recommendation on field observations of the contamination extent and soil and <br /> groundwater sample results during the soil and groundwater investigation and soil remediation they <br /> conducted in 1986 and 1987. In the letter to Libbey Owens Ford from San Joaquin County (SJC) dated <br /> October 14, 1997, SJC requested the submittal all site information to the SJC for review regarding <br /> previous site characterization and indicated that it recognized that some previously assessed sites may be <br /> candidates for closure. PNA believes that the above referenced report prepared by WCC and submitted to <br /> the SJC by PNA satisfied that request. Although groundwater monitor well sampling at the site is <br /> included by Condor in the attached work plan at your request, PNA believes that site closure is <br /> appropriate and the monitor well sampling is not necessary. If you have any questions or need additional <br /> information,please call us at(209)234-0518. <br /> Respectfully submitted, <br /> CONDOR EARTH TECHNOLOGIES, INC. <br /> Donald F.Kresse Je f e <br /> California Registered /Regi ter, d Civil <br /> Geologist#6430 Engineer C044265 <br /> Attachment: Work Plan <br /> PA3151 Pilkinton PLOF\3151JUST Review\Correspondence\Transmittals\3151J WP1anCovendoc <br />