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i <br /> �t V lfE I * W: -A - ENSR International <br /> M411 Old Placerville Road <br /> Suite 210 <br /> 03 OCT -3 p� 2; ,Sacramento,CA 95827-2508 <br /> (916)362-7100 <br /> FAX (916)362-8100 <br /> October 1, 2003 www.ensr.com <br /> ENSR Project Number: 06940-357 <br /> l r <br /> Ms. Margaret Lagorio <br /> County of San Joaquin <br /> Environmental Health Department <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, CA 95202-2708 <br /> RE: Deadline Extension to Evaluate 1,2-Dichloroethane in Groundwater <br /> Former Unocal #2859 <br /> 1665 Pacific Avenue <br /> Stockton, California <br /> Dear Ms. Lagorio: <br /> On behalf of the Union Oil Company of California (Unocal), ENSR International (ENSR) has <br /> prepared this letter in response to the July 31, 2003 letter from the EHD. In its letter, the EHD <br /> requested a workplan for evaluating the site as a potential source of 1,2-DCA in groundwater <br /> and feasible options of remediation. The EHD requested that this workplan be prepared and <br /> submitted by October 1, 2003. In a conversation between you and Mr. Ben Heningburg of <br /> ENSR, on September 26, 2003, the EHD agreed to a 90-day extension of this deadline. ENSR <br /> plans to evaluate the site as a potential source of 1,2-DCA identified in groundwater in the <br /> vicinity of the site. Following that evaluation, ENSR will recommend appropriate actions. <br /> If you have any questions regarding this request please contact Ben Heningburg at your <br /> convenience at (916) 288-4315. <br /> Sincerely, <br /> ENSR International <br /> M rk Na gle, E Be Heningbur <br /> Department Man ger Senior Project Manager <br /> Attach. <br /> CC.' Mr. Jim Barton, CVRWQCB <br /> Mr. David Irey, San Joaquin County Deputy District Attorney <br /> Ms. Helen McCrary <br /> Mr. Bob Hopkins, Unocal <br /> W 35 Years of Excellence in Environmental Services <br /> J;\Projectsk069401357-2859\Working\Stockton 2859 <br /> I <br />