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GROUNDWATER <br /> �0�❑ TECHNOLOGYIN <br /> � C. 408U-L1 E'ikc Lane,Concord.CA 9.1520 <br /> (415)671-2387 <br /> October 9, 1989 <br /> Job No. 203 475 2894.02 <br /> Ms. Diane Hinson <br /> man Joaquin County Health Department <br /> 1601 E. Hazelton Avenue <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> 's <br /> Re: Southland Station #20680, 9110 Thornton Road, Stockton, <br /> California, Monthly Update of Air Permit Compliance, <br /> Permit Nos. 86-82a, 86-83, September 1989. <br /> Dear Ms. Hinson: <br /> This letter report presents an update for Air Permits 86-82a and <br /> 86-83, for the month of September 1989. The conditions itemized <br /> in the Permits to Operate are addressed below. <br /> As per condition 1 in Permits 86-82a and 86-83, the total <br /> nonmethane on-site hydrocarbon emissions (total air stripping <br /> plus soil.-vapor extraction system) was less than 0.0000029 <br /> lbs/day, which is below the permit maximum of 4.7 lbs/day (See <br /> Table <br /> ' A written log of the hydrocarbon emissions at each pumping well j <br /> and the daily pumping rate for each well as per conditions 3 arid <br /> 4 of Permit 86-32a, are summarized in Table 1, <br /> ,S <br /> Tables 2, 3, and 4, present a summary of data collected on the <br /> soil-vapor extraction system for the month of September 1989, as j <br /> itemized in condition 5 of Permit 86-83. Weekly monitoring of i <br /> the system allowed for replacement of saturated carbon canisters <br /> (See Table 3) . <br /> S ! <br /> DlTres thmughoW Me U.S.,Canada and 0rmeos <br /> i <br />