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TABLE 2 SUMMARY OF GROUNDWATER ANALYTICAL RESULTS JA61AR Service Station,4075 East Main Street,Stockton,CA Page 13 of 13 Re orted in P /L Date Sampling TPHg TPHtl Benzene Tolueno Ethyi Xylenes MTBE TBA DIPS ETRE TAME 1,2-DCA EDB Sam Ie ID Schedule Benzene EW1 03/11/08 Quarterly 2,900 NA <0.5 <0.5 <0.5 <0.5 3,300 110 <0.5 <0.5 <0.5 97 <0.5 Zone A 06/03/08 Quarterly 2,800 NA <0.5 <0.5 <0.5 <0.5 2,600 96 <0.5 <D.5 <0.5 79 <.5 09/18/08 Quarterly 1,700 NA <0.5 <0.5 <0.5 10.5 1,300 10 <0.5 <0.5 <0.5 65 <0.5 12/11/08 Quarterly 1,400 NA <0.5 <0.5 <0.5 <0.5 520 <5.0 <.5 <0.5 <0.5 46 <0.5 03/09/09 1st,and 76 HA <.5 <0.5 <0.5 <0.5 110 <5.0 <0.5 <0.5 <0.5 34 <0.8 12/07/09 1st,3rd Q <.50 NA <0.5 <.5 <0.5 <7.0 1.5 <5.0 <0.5 <.5 <.5 28 <0.5 03/09/10 1st,3rd Q <51) NA <DS <.5 <0.5 <1.0 1.5 NA NA NA NA 16 <0.5 09129/10 1st,3rd Q <50 NA <.5 <.5 <0.5 <1.0 2.4 NA NA NA NA 8.7 <0.5 03108/11 1st,3rd 0 <50 NA <.5 <D.5 <0.5 <1.0 34 NA HA NA NA 4.3 <.5 CPTI(70-72') 05114/08 One-time 400 NA 0.72 <0.5 <0.5 <.5 1.5 c5.0 <0.5 <0.5 0.77 <.5 <0.5 • CPT1(101-103) 05/14/08 One-time <50 NA 2.3 <0.5 <.5 1.4 10.5 <5.0 <0.5 <0.5 <.5 <.5 <.5 CPT2(106-111) 05/15/08 One-time 270 HA 65 100 21 68 99 c5.0 <.5 <0.5 0.72 2.5 <.5 CPT3(70-73) 05/15/08 One-time 510 NA 12 19 22 13.9 1.5 17 <.5 <0.5 <0.5 <0.5 <.5 CPTS(96.100) 05/15108 One-time 17,01)0 NA 1,000 1,800 440 2,800 13 <100 <10 <10 <10 <10 -10 CPT4(55-60) 05/16/08 One-ome <50 NA <.5 <0.5 <0.5 <.5 <.5 <5.0 <.5 <.5 <0.5 <0.5 <0.5 CPT4(85-90) 05116108 Ona-time 430 NA <.5 <0.5 <0.5 <.5 350 <5.0 <.5 10.5 <0.5 4.5 <05 CPT4(105-110) 05/16/08 One-time 940 NA <.5 <.5 <0.5 <0.5 760 <5.0 <.5 <.5 <0.5 8.9 <0.5 CPTS(60-65) 05/19/06 One-lime <50 NA <.5 <0.5 <.5 <0.5 <0.5 <5.0 <0.5 <0.5 <D.5 <.5 <.5 CPTS(93.98) 05/19108 One-time <50 NA <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <D.5 <.5 <.5 <.5 CPT5(120.125) 05/19/08 One-6me <50 NA <0.5 <0.6 <.5 <0.5 <.5 <5.0 <0.5 <0.5 <.5 <.5 <.5 CPT6(70-75) 05/20108 One-time .50 NA <0.5 <.5 <05 <.5 2.9 <5.0 <0.5 <0.5 <.5 <.5 <.5 CPTS(97.102) 05/20/08 One-time <0 NA <0.5 <.5 <.5 <0.5 <.5 <5.0 <.5 <.5 <.5 40.5 40.5 CPT6(112-117) 05/20108 One-time <50 NA <0.5 <.5 <.5 <0.5 <.5 <5.0 <.5 <.5 <.5 <.5 <.5 Notes. ug/L denotes micrograms per liter. TPH9 denotes Total Petroleum Hydrocarbons as gasoline analyzed by EPA Method 8015M. TPHd denotes Total Petroleum Hydrocarbons as diesel analyzed by EPA Method 80158. MTBE denotes methyl tertiary butyl ether analyzed by EPA Method 82608. DIPE denotes di-isopropyl ether analyzed by EPA Method 82608. TAME denotes tertiary amyl methyl ether analyzed by EPA Method 82606. TBA denotes tart ary butyl ether analyzed by EPA Method 82608. ETRE denotes ethyl tertiary butyl ether analyzed by EPA Method 82608. 1,2-OCA denotes 1,2-dichlorcethane analyzed by EPA Method 8260B. EDB denotes ethyl dibromide analyzed by EPA Method 82BOB. NA denotes not analyzed. ND denotes not detected. Laboratory mporty."Estimated Value between MOL and PQL".