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ARCO Products Compik <br /> 2000 Alameda de la ulgas <br /> ` Mailing Address:Box 5811 <br /> San.Mateo,California 94402 <br /> Telephone 415 571 2400 <br /> E' <br /> RicC96 <br /> 'in! <br /> w <br /> F E B 2 7 1992 <br /> February 24, 1992 EIVV6RCNMEL l-[ <br /> PERM ITi�,r.ER lCE.f3 <br /> Ms. Laurie Cotulla <br /> San Joaquin County <br /> Environmental Health Department <br /> P.O. Box 2009 <br /> Stockton, California 95201 <br /> Subject: ARCO Service Station .#2133, 2908 Benjamin Holt Drive, <br /> Stockton, California: Site Code #1021 <br /> Dear Ms. Cotuila: <br /> This letter is in response to your letter (attached) dated February 11 , <br /> 1992, regarding the January 28, 1992 meeting with the. San Joaquin <br /> County Environmental Health. Department (.County), Central Valley Regional <br /> Water Quality Control Board (Regional Board), ARCO Products Company <br /> (ARCO), Brown And Caldwell Consultants (BCC), Chevron, and Groundwater <br /> Technology. <br /> _ 9Y• <br /> ARCO-and-Chevron ill coordinate the measurement—of groundwater <br /> elevations for all of the monitoring�welJsassociate�d_withV_the-_two.7si <br /> The- groundwater-elevations-will -be_based_on-a_common_datu-m After these <br /> measurements are collected, a groundwater gradient map showing both <br /> sites will be generated and submitted to the County and Regional Board. <br /> On behalf of ARCO, BCC will prepare a work plan for the installation of one <br /> upgradient monitoring well to the west of the ARCO site on CalTrans <br /> property. The installation of this well will be`contingent on the results of <br /> the next four quarters (through December 1992) of groundwater quarterly <br /> sampling. Permission to install a well on CalTrans property will be <br /> pursued ,over the next six months and the County will be notified though <br /> correspondence. between ARCO and CalTrans of the results for <br /> encroachment. <br /> APPC-7025-D <br /> ARCO Products Company Is a Division of AtlanticRichiieldCompany (9-88) <br />