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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 Operation Flow Rate Concentration within period TPHg removed Removal Rate Removed <br /> (hrs)' (hrs) (cfm) (ppmv) (ug1L) (Ibs) (Ibs) (lbslhr) (gatlons) Remarks <br /> 05!18104 14 268 0 2 210 137 469 21 8205 Restarted <br /> 05124104 14 410 142 147 2 210 17253 137 642 1 22 21 8479 <br /> 06/07/04 14 749 339 141 1 770 7 240 86265 138 504 254 21 984 8 <br /> 06!14!04 14 754 5 141 7 240 1909 138 523 382 21 987 8 shut down system wU replacement of My blower mow. <br /> 06/24104 14 754 0 7 240 138 523 21 987 8 Restarted <br /> 07/06104 14 797 43 140 2 190 8 980 18260 138 706 425 22 016 8 Fa nd system off ria p—er restarted <br /> 07112104 14 891 94 140 8 980 44198 139 148 470 22 057 0 <br /> 07/19104 14 986 95 143 8 980 45147 139 599 475 22 158 6 Found system off restarted <br /> 07/26/04 14 989 3 141 8 980 1431 139 614 477 22 160 9 Found system on replaced blower belt restarted <br /> 08102104 14 996 7 141 8 980 3315 139 647 474 22 166 2 Found system off restarted <br /> 08110104 15 130 134 142 8 980 63681 140 284 475 22 267 3 Feund system off restarted <br /> 08/16104 15 135 5 142 590 2 420 1614 140 299 303 22 269 7 F—d system off restarted r«mcnthyae samph.9 stye down system for ows <br /> 08/23/04 15 139 4 143 2 420 516 140 304 129 22 270 5 Restarted <br /> 08130/04 15 146 7 142 2 420 903 140 313 129 22 271 9 Feund system off restarted <br /> 09103104 15 216 70 141 2 420 8965 140 403 128 22 286 1 <br /> 09108104 15 331 115 204 2 420 17955 140 582 156 22 314 6 shut do—system <br /> 09/27104 15 331 0 141 2 420 - 140 582 22 314 6 Restarted <br /> Total hours of operation 30 171 <br /> NOTE Inlet Concentration 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 In the hydrocarbon removal columns Older versions of this table may have different numbers <br /> 171 ves Page 7 of 7 1019 2104 <br /> I <br />