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• s TABLE 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES EPA Method 8015/8260 Den's Auto Repair- 308 South El Dorado Street, Stockton, California $ e11a "Sarriple-` toui►d� 8 ee PH g. Benzene o(uetc .Eth h ylcne TBI+ "DIP>; ETRE 1,T" TBA Methanol Etlla�riol --'EDB}-- l,2- -i 1=D` Da � Water_ Interval � benzene - $2b0 � x DSA _ µ - Depth ,s Ober NA) - -N4W2B 09-24-97 3032 45-25 feet 11,000 120 20 190 1,500 <30 74 <30 <30 <150 04-09-98 2536 4,700 340 10 85 44 <2 0 15 <2 0 52 200 11-20-98 2503 5,300 1,100 11 250 230 <25 <25 <25 <25 650 -- -- - 09-23-99 2448 3,235 '900 30 195 420 1,250 17 <0 5 250 <0 5 -- _ 12-30-99 2505 4,240 220 8.6- 42 648 202 26 131 454 <0 5 - 03-30-00 2340 20,800 82 70 11 36 <0 5 29 <0 5 36 <10 -- -- <5 0 <5 0 04-09-01 2391 4,680 490 10 90 74 20 <0 5 <0 5 <0 5 160 <25 <25 <0 5 <0 5 W3A 09-24-97 3151 65-60 feet 1,100 099 39 24 71 <5 0 2.7 <5 0 <5 0 91 -- -- -_ -- 04-09-98 2639 650 <0 5 34 1.4 3.3 <1 0 <1 0 <1 0 <5 0 75 -- -- __ 11-20-98 2629 330 <0 5 16 071 20 <1 0 12 <1 0 <1 0 16 09-23-99 2564 1,735 056 11 50 80 25 <0 5 <0 5 <0 5 <0 5 12-30-99 2602 200 ' <0 5 <0 5 0.6 06 <0 5 <0 5 <0 5 35 <0 5 03-30-00 2419 <50 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <10 -- ' -- <5 0 <5 0 04-09-01 2501 <50 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <10 <25 <25 <0 5 <0 5 W3B 09-24-97 3124 40-20 feet 1,600 <0 5 21 21 60 <5 0 <5 0 <5 0 <50 <5 0 -- -- __ _- 04-09-98 2620 420 <0 5 1.4 3,1 3.9 <1 0 <1 0 <1 0 <5 0 <1 0 11-20-98 2608 <50 <05 - 0.99 <0 5 077 <1 0 <1 0 <1 0 <1 0 <5 0 09-23-99 2544 900 2,3 - 1.0 6.0 90 <0 5 <0 5 <0 5 <Q 5 <0 5 12-30-99 2618 220 <0 5 <0 5 07 0.5 <0 5 <0 5 <0 5 35 <0 5 03-30-00 2410 520 -505 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <10 -- -- <5 0 <5 0 04-09-01 2483 <50 <0 5 <0 5 <0 5 <0 5 1, <0 5 <0 5 <0 5 <0 5 1 <10 1 <25 1 <25 1 <0 5 1 <0 5 Notes w Ground water depth measurements in feet. µg/l micrograms per liter TPH-g=Total petroleum hydrocarbons quantified as gasoline Di-isopropyl Ether(D[PE), Ethyl tertiary-Butyl Ether(ETBE), Methyl-tertiary Butyl Ether(MTBE) tertiary-Amyl Methyl Ether(TAME), ternary-Butanol(TBA) ethylenedibromide(EDB) 1,2 dichloroethan(1,2-DCA) Advanced GeoEnvironmental,Inc _ r ' t