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TABLE 3 OPERATIONAL UPTIME AND FLOW RATE FOR SOIL VAPOR EXTRACTION SYSTEM USA Gasoline Station 65 2500 West Lodi Avenue Lodi, California Date Hr.Meter Flow Rate Vaccum Das Between Sampling Dates Cumulative Das Percent Reading (cfm) {"WC) Total Days Uptime Total Days I Uptime Uptime 10/20/2004 System start-up under new SJVAPCD Permit:N-4887-2-0.The new SoIleco 100 cfm SVE system consists of 5 hp blower and a electric catalytic oxidizer 10/20/2004 0.9 43.65 13.6 10/28/2004 190.3 42.0 20.4 8.00 7.89 8.00 7.89 98.65% 11/4/2004 358 89.0 40.8 7.0 7.0 15.0 14.88 99.82% 11/23/2004 815.6 81.0 27.2 19.0 19.1 34.0 33.95 100% 12/9/2004 1,204.1 80.0 NM 16.0 16.2 50.0 50.13 100% 12/24/20041 1,561.2 82.0 30 15.0 14.9 65.0 65.01 99% 1/13/2005 2,043.2 87.3 NM 20.0 20.1 85.0 85.10 100% 1/25/2005 NM 75.0 NM 2/8/2005 4 2,477.0 87.3 54.4 26.0 18.1 111.0 103.17 70% 2/24/2005 2,862.3 87.3 54.4 16.0 16.1 127.0 119.23 100% 3/3/2005 3,032.3 98.2 95.2 7.0 7.1 134.0 126.31 100% 3/17/2005 3,365.1 77.0 68.0 14.0 13.9 148.0 140.18 99% 4/5/2005 s 3,681.8 30.0 NM 19.0 13.2 167.0 153.37 69% 4/20/2005 6 3,682.1 40.0 20.0 15.0 0.0 182.0 153.38 0% 4/26/2005 3,827.5 43.0 18.0 6.0 6.1 188.0 159.44 100% 4/26/2005 3,827.6 Sy stem shutdown due low influent concentrations. 5/11/2005 6 3,827.6 98.0 30.0 15.0 0.0 203.0 159.44 0 5/26/2005 s 4,195.8 98.0 NM 15.0 15.3 218.0 174.78 100% * System Shutdown for pulsing i System down due to Power Outage "WC-Inches Water Column 2 System observed to be non-functional upon arrival at the site, M-Not Measured however upon re-start functioned normally. The SVE system was shutdown due to low influent concentrations. 3SVE system shut down due to carbon breakthrough. 4Total days between sampling dates estimated here is between 1/13/5 and 2/8/5 5 System shutdown due to low influent concentrations 6 System re-started. USA_65_Quuter1y_O&M Page 3 of 3 STRATU5