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lie Brown and Caldwell <br /> 3480 Buskirk Avenue <br /> Pleasant Hill CA 94523-4342 <br /> P 0 Bax 8045 <br /> Walnut Creek CA 94596-1220 <br /> (510)937-9010 <br /> FAX(510)937-9026 <br /> December 28, 1994 <br /> Ms. Linda Turkatte <br /> Senior Registered Environmental Health Specialist <br /> San Joaquin County Public Health Services Department <br /> Site Mitigation Unit <br /> P.O. Box 388 <br /> Stockton, California 95201-0388 11-1567-0711 <br /> Subject: Amendment to October 17, 1994, Work Plan for E-Z Serve Management <br /> Company Site #100966 2537 Waterloo Road, Stockton, California <br /> Dear Ms. Turkatte: <br /> As per your request, Brown and Caldwell has reviewed the proposed air sparging (AS)/soil <br /> vapor extraction (SVE) test and concurs with your conclusion that based on the December <br /> 1994, water level data the on-site groundwater monitoring wells cannot be used as monitoring <br /> wells during the proposed AS/SVE pilot test, because the static water level has risen to the <br /> top of the perforated well casing. We therefore propose to install two additional SVE wells <br /> at the locations identified on the attached figure. These wells will be used as monitoring <br /> wells during the AS/SVE pilot test. A diagram illustrating the construction of these two <br /> additional wells is also attached. Brown and Caldwell plans to install and construct these <br /> wells between December 30,1994 and January 3, 1995. <br /> If you have any questions or require additional information, please call me at your earliest <br /> convenience at (510) 210-2278. <br /> Sincerely, <br /> BROWN AND CALDWELL <br /> Todd Miller <br /> Project Manager <br /> TM:evm <br /> Attachments(2) <br /> �va�tis.�ts6nw��,�n2.wrs <br />