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S TABLE 2 SUMMARY OF GROUNDWATER ANALYTICAL RESULTS N and S Irrigation, 215 West Main St., Ripon, CA Page 3 of 3 Sample Date Benzene Toluene Ethyl Xylenes j MTBE DIPE TAME TBA ETBE TPHg Lead ID I Benzene MW3 06/12/00 <5.0 <5.0 8.26 14.2 NA NA NA NA NA 769* NA MW3 09/12/00 1.41 <0.5 34.7 12.6 NA NA NA NA NA 2,060* NA MW3 12/13/00 <0.5 0.5 8.7 2.6 <5.0 NA NA NA NA 1,000 NA MW3 03/21/01 0.60 0.9 8.3 14 <5.0 NA NA NA NA 1,300 NA MW3 06/06/01 1.2 <0.5 14 3.1 <5.0** NA NA NA NA 1,400 NA MW3 09/06/01 2.2 1.2 11 <0.5 <5.0** NA NA NA NA 1,100 NA MW3 12/13/01 1.4 <0.5 3.6 1.3 <5.0** NA NA NA NA 510 NA MW3 03/06/02 1.7 0.7 1.5 2.5 <5.0** NA NA NA NA 460 NA MW3 06/07/02 1.1 <0.5 1.2 1.3 <5.0** NA NA NA NA 350 NA MW3 09/19/02 1.4 0.9 6.8 8.2 <5.0** NA NA NA NA 680 NA MW3 12/02/02 <0.5 1.4 5.2 4.9 <5.0** NA NA NA NA 820 NA MW3 03/05/03 <0.5 <0.5 1.5 <1.0 <5.0*** NA NA NA NA 300 NA MW3 06/04/03 <0.5 <0.5 <0.5 <1.0 <5.0*** NA NA NA NA 290 NA MW3 09/10/03 <0.5 2.0 16 11 <2.0 <2.0 <2.0 <20 <2.0 1,800 NA MW3 12/08/03 <0.5 0.8 7.7 9.6 <5.0*** NA NA NA NA 1,200 NA MW3 03/02/04 <0.5 0.6 3.9 4.0 <2.0 <2.0 <2.0 <20 <2.0 960 NA Notes: ug/1 denotes micrograms per liter or parts per billion MTBE denotes methyl tertiary butyl ether analyzed by EPA Method 82608 unless noted DIPE denotes di-isopropyl ether analyzed by EPA Method 8260 TAME denotes tertiary amyl methyl ether analyzed by EPA Method 8260 TBA denotes tertiary butyl ether/t-butanol analyzed by EPA Method 8260 ETBE denotes ethyl tertiary butyl ether analyzed by EPA Method 8260 TPHg denotes Total Petroleum Hydrocarbons as gasoline, analyzed by EPA Method 50301801518015B NA denotes Not Analyzed *denotes Weathered Gas pattern C6-C12 *"denotes MTBE analyzed by EPA Method 8020A ***denotes MTBE analyzed by EPA Method 8021 B S:1Enviromenta11149811TABLESIGWTAB Page 3