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Advanced <br /> GeoEnvironmental , Inc . <br /> 08 April 2010 E-1; <br /> �EPY EVAGE-NC Project No. 95-0106 L� !�/ <br /> Vicki McCartney A'? 0 9 2010 <br /> SAN JOAQUIN COUNTY ENVIRONMENTAL HEALTH DEPARTMENT ENVIRUI NIENT HEALTH <br /> 600 East Main Street PERMIT/SERVICES <br /> Stockton, CA 95202 <br /> Subject: In Situ Chemical Oxidation Pilot Test Work Plan Addendum <br /> WELDON CHURCH PROPERTY (former Church Refrigeration) <br /> 104 West Beverly Place, Tracy, California <br /> Dear Ms. McCartney: <br /> At the request of Mr. Weldon Church,Advanced GeoEnvironmental, Inc. (AGE)has prepared this <br /> work plan addendum for 104 West Beverly Place, Tracy, CA. The addendum was prepared in <br /> accordance with San Joaquin County Environmental Health Department (EHD) letter, dated <br /> 03 March 2010. The EHD letter directed submittal of a site plan showing the proposed locations for <br /> the aquifer volume injection test borings and technical justification for selecting the locations. <br /> AGE proposes to advance two injection test borings for performance of a preliminary aquifer volume <br /> test in the southern portion of the site. The locations were selected based on similar lithology and <br /> proximity to the former underground storage tank(UST)area. The lithology in the southern portion <br /> of the site is consistent with the lithology in the proposed treatment area; in addition, the proposed <br /> locations of the injection test borings are outside of the petroleum hydrocarbon-impacted soil and <br /> ground water plumes at the site and upgradient of the former UST area. A site plan illustrating the <br /> proposed locations of injection test borings is presented in Figure 1. <br /> If you have any questions or comments, please contact me at (209) 467-1006. <br /> Sincerely, <br /> Advanced GeoEnvironmental, m No.8574 92 <br /> 3A.., u).A 4� <br /> Brian W. Millman T"'F F <br /> Senior Project Geologist <br /> California Professional Geologist No. 8574 <br /> cc: Mr. Weldon Church and Mr. Jim Barton <br /> 837 Shaw Road.Stockton.CA 95215 <br /> Telephone (209) 467-1006 Fax (209)467-1119 <br />