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•`' TABLE 3 <br /> Vapor Extraction Operating Data <br /> Thrifty Oil Station # 172, Stockton, CA <br /> Hour Meter Inlet Kydracarbo ms Removed <br /> Date Reading Duraftn FlowRate : I,.ab.Conuontrations Period Cumulative Comments <br /> (hrs) (hrs) (cfm) ppmv ugh. (Ibs) (Ibs) <br /> 4112101 1 200 #N1A 9 100 - 0 Only 2 hrs run,sampling for APCD <br /> 4126101 3 2 200 9,100 136 14 Startup System _ <br /> 5110101 333 330 200 7 873 34 764 5 413 7 5,427 Concentration is averaged from wells <br /> 5124101 672 339 206 34 764 8 947 3 14,375 _ <br /> 6121101 1 344 672 210 588 2 600 9,7661 24 141 <br /> 715101 1 671 327 211 _ 2 600 6693 24 810 <br /> NOTE Inlet concentration is obtained from laboratory analytical result for Total Petroleum Hydrocarbons(TPH) <br /> and assumed the same until the subsequent sampling <br /> 014tab3 Page 1 of 1 7130101 <br />