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0 <br /> TA*3 <br /> VAPOR REMEDIATION SYSTEM STATUS <br /> THRIFTY OIL STATION f#171, STOCKTON, CA <br /> Hour meter Hours of Vapor Inlet TPHg TPHg removed Cumulative TPHg Mass Volume <br /> Date reading Operation Flow Rate Concentration wtthrn period TPHg removed Removal Rate Removed <br /> (hrs)" (hrs) (cfm) (ppmv) (ug1L) (Ibs) (Ibs) (lbslhr) (gallons) Remarks <br /> 05/13/03 7 186 166 147 374 1 530 13735 129 154 083 20 500 6 Shut down for QWS <br /> 05/14/03 7 186 —0 1 530 129 154 20 500 6 Restarted <br /> 05120/03 7311 125 172 1 530 12303 — 129 277 098 20 520 1 <br /> 05/28/03 7 318 — 7 173 1 530 — 691 129 283 099 20 521 2 Found system atf power shut down restarted <br /> 06/03/03 7 321 — 3 172 1 530 296 T 129 286 099 20 521 7 Found system 0 blower belt broken restarted <br /> 06/10/03 7 484 T 1fi3 173 1 530 160 89 129 447 0 99 20 547 2 <br /> —06/17/03 7 628 144 17D 120 490 �93 29 129 541 0 65 20 562 0 <br /> 06124/03 7 796 168 147 490 4880 129 589 029 20 569 7 <br /> I <br /> Total hours of operation 22 636 <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 to the hydrocarbon removal columns Older versions of this table may have different numbers <br /> 171ves Page 6 of 6 <br /> 7/3/03 <br /> I <br />