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TABLE 3 <br /> VAPOR REMEDIATION SYSTEM STATUS <br /> THRIFTY OIL STATION#171, STOCKTON, CA <br /> Hour meter Hours of Vapor Inlet TPHg TPHg removed Cumulative TPHg Mass Volume <br /> Date reading :.bon Flow Rate Concentration within period l TPHg removed Removal Bate Removed <br /> (hrsp {firs) (cfm) (ppmv) (OWL) (lbs) (Ibs) (lbsmr) (gallons) Remarks <br /> 02!23!04 12 988 60 146 528 2 160 101 11 136 707 169 21 699 5 Found system all overloaded switch shut down system restarted <br /> 03!01!04 13 123 135 142 2 160 15704 136 864 116 21 724 5 Found system dawn powaa off 6 ben broken restarted <br /> 03108!04 13 286 163 143 2 160 18764 137 052 1 15 21 754 2 <br /> 03/15/04 13 450 164 147 368 1 510 163 20 137 215 100 21 780 1 <br /> 137 221 0 81 21 781 2 Found system uR overload switch shunow <br /> down system restated <br /> 03122104 13 458 8 141 1 510 651 <br /> 03130104 13 633 175 143 1 510 14034 137 362 080 21 803 4 <br /> 04105!00. 13 731 98 141 19 76 4127 137 403 042 <br /> 218100 Found Wftm off ovedoad switch restarted <br /> 04112!04 13 895 164 144 76 664 137 410 0 04 218111 <br /> 04119f04 14 063 168 143 76 685 137 416 004 <br /> 218121 <br /> 04126104 14 100 37 141 76 149 137 418 004 21 812 4 Found system off resredad <br /> 05/03104 14 192 92 146 76 375 137 422 0 04 21 813 0 Found system afi restarted <br /> 05!10!04 14 268 76 146 540 2 210 4743 137 469 062 21 820 5 Shutdown system foroWS <br /> 05118104 14 268 0 - 2 210 137 469 21 B20$ Restarted <br /> 05/24/04 14 410 142 147 2 210 172537 137 642 122 21 B47 9 <br /> 06/07/04 14 749 339 141 1 770 7 240 86265 138 504 254 21 984 8 <br /> 06114104 14 754 5 141 7 240 1909 138 523 382 21 987 8 Shutdown system for repro ementof bq blower motor <br /> 06/24/04 14 754 0 7 240 - 138 523 21 9878 Restarted <br /> Total hours of operation 29 594 <br /> NOTE Inlet Concentrabon obtained from laboratory analytical results and assumed the same until subsequent sampling event <br /> Volume of hydrocarbons removed calculation assumes gasoline density of 6 3 <br /> In February 2002 this table was corrected due to some formula errors to the hydrocarbon removal columns Older versions of this table may have different numbers <br /> 171ves Page 7 o 7 7/12/04 <br />