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M W M M w M = w w <br /> TABLE 2 <br /> SUMMARY OF VAPOR EXTRACTION SYSTEM DATA <br /> Farmer Property, Stockton, CA <br /> Page 6 of 6 <br /> Vacuum Flowrate FID reported in parts per million by volume my <br /> Sample ID Date inches of cubic feet reading TPHg Benzene Toluene Ethyl Xylenes MTBE ETBE TBA D I P EFTAME <br /> Mercuryer minut (ppm) Benzene <br /> VW4 12/20/02 90 NM NM 420 38 75 85 238 <0 002 <0 002 <0 005 <0 002 <0 002 <br /> 12/23/02 85 NM NM NS NS NS NS NS NS NS NS NS NS <br /> 12/27/02 95 NM 32 NS NS NS NS NS NS NS NS NS NS <br /> 01/03/03 62 NM 70 NS NS NS NS NS NS NS NS NS NS <br /> 04/18/03 15 22 112 NS NS NS NS NS NS NS NS NS NS <br /> 04/30/03 SYSTEM DOWN <br /> 05/02/03 25 35 113 130 025 1 5 17 79 <0 100 <0 100 <0 250 <0 100 <0 100 <br /> 05/21/03 1 3 28 442 75 <0 050 <0 050 06 491 <0 100 <0 100 <0 250 <0 100 <0 100 <br /> 06/09/03 20 NM 120 NS NS NS NS NS NS NS NS NS NS <br /> 06/25/03 32 29 803 1 78 038 22 087 69 <0 010 <0 010 <0 025 <0 010 <0 010 <br /> 07/29/03 SYSTEM DOWN <br /> 08/01/03 23 NM 41 29 0 069 029 015 18 <0100 <0100 <0 250 <0 100 <0100 <br /> 08/29/03 25 1150 41 34 0 054 0 093 <0 050 104 <0 100 <0 100 <0 250 <0 100 <0 100 <br /> 09/30/03 30 NM 0 28 0 085 026 017 163 <0 100 <0 100 <0 250 <0 100 <0 100 <br /> 10/24/03 30 44 105 30 <0 050 <0 050 <0 050 0 304 <0 100 <0 100 <0 250 <0 100 <0 100 <br /> 11/21/03 40 13 51 <2 5 <0 050 058 010 089 <0 100 <0 100 <0 250 <0 100 <0 100 <br /> 12/30/03 NM NM 1 7 14 0 050 <0 050 <0 050 <0 150 <0 100 <0 100 <0 250 <0 100 <0 100 <br /> 01/28/04 40 NM 13 21 0 430 <0 050 0 066 01 <0 100 <0 100 <0 250 <0 100 <0 100 <br /> 02/23/04 15 NM 24 NS NS NS NS NS NS NS NS NS NS <br /> 03/26/04 90 NM 16 16 095 031 035 221 <0 100 <0 100 <0 250 <0 100 <0 100 <br /> MW1 02/23/04 150 NM 126 360 28 15 53 238 <0 1 <0 1 <0 25 <0 1 <0 1 <br /> 03/26/04 195 NM 154 120 28 22 70 397 <0 1 <0 1 <0 25 <0 1 <0 1 <br /> Notes <br /> < denotes not detected at or above Stated Method Detection Limit <br /> TPHg denotes Total Petroleum Hydrocarbons as gasoline, analyzed by EPA Method 5030/8015 <br /> MTBE denotes methyl tertiary butyl ether by EPA Method 8260 <br /> ETBE denotes ethyl tertiary butyl ether by EPA Method 8260 <br /> TBA denotes tertiary butyl ether by EPA Method 8260 <br /> DIPE denotes di-isopropyl ether by EPA Method 8260 <br /> TAME denotes tertiary amyl methyl ether by EPA Method 8260 <br /> ppm denotes parts per million <br /> NM denotes not monitored <br /> NA denotes not applicable <br /> NS denotes not sampled <br /> Vapor wells VW3 and VW4 were closed 118103 <br /> W M5%ATABLEShemediationsystema <br />