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APR -01-03 05:51 PM It Is <br />9�ii <br />County of San Joaquin <br />304 East Weber 3rd Floor <br />Stockton, CA 95202 <br />Reference: Enhanced Leak Detection <br />USA # 835 <br />2705 Country Club Blvd. <br />Stockton, CA 95204 <br />MrMlt �7�6 .1 7'g-T'j *MILM <br />Two (2), one split, underground storage tanks (UST). Shirley Environmental Testing, <br />location. Shirley Environmental Testing, LLC, is a licensed affiliate of Tracer Research <br />Corporation providing Enhanced Leak Detection services throughout Caffornia. <br />The scheduled work plan is to provide Enhanced Leak Detection services (0.005 gph <br />sensitivity) to the above referenced facility with a technological method that meets the <br />requirements set fbrth in SB 989. According to the information provided by USA there <br />are Two (2) UST's containing motor vehicle fuel. One 12,000 and one compartment tank, <br />4,000 diesel and 8,000 gasoline. <br />The tanks will be inoculated with an individual Tracer. inoculation is to be performl <br />iNlowing strict guidelines established by Tracer Research <br />Ns? � W �Ip 1, M T'M 7M 711" T I �T �rt A iii J.'a MOM? I I <br />depth of approximately 10 fed below grade. An additional 10 probes numbered I I thru <br />20, will be installed to a depth of 12 inches to 19 inches below grade along the vent lines <br />and piping runs. Samples may also be taken from any applicable tank or piping annular <br />spaces <br />UM, <br />