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i <br /> • 0 �- <br /> TABLE 3 <br /> VAPOR REMEDIATION SYSTEM STATUS <br /> THRIFTY OIL STATION #171, STOCKTON, CA <br /> Hour Met& Hours of 'Vapor Inlet Wft' TPHg removed cumulative TPHg Mass Volume <br /> Date reading Operation Flow Rate Concentration within period TPHg removed Removal Rate Removed <br /> (hrs)' (hrs) Win) (ppmv) (ug/L) (Ibs) (Ibs) (lbslhr) (#gallons) Remarks <br /> 05/28/02 670 167 173 990 106 66 63,363 77064 <br /> 100577 <br /> 06/04/02 726 56 172 990 3577 63 399 10,063 4 Found system off restarted <br /> 06/11/02 743 17 - 990 10 83 63,410 0 64 10,0651 System shut down <br /> for blower replacement <br /> Total hours of operation 15,583 <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 5 of 5 7110102 <br /> I <br />