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Table 1
<br /> Groundwater Analytical Data
<br /> Parkinson's Arco
<br /> 3250 West Hammer Lane
<br /> Stockton,California
<br /> Top of
<br /> Casing Depth to Groundwater TPH as Ethyl- Tert-Butyl
<br /> j Sample Date Elevation Water Elevation Gasoline Benzene Toluene benzene Xylenes MtBE DIPE ETBE TAME Alcohol
<br /> Identification 5 led (MSL) feet b s MSL (u u (Ug") u u ug/1) (119/1) (Ug") (ug/1) (ug/1)
<br /> MW-1 09/21/00 430 1296 -866 25,700 1 820 503 1,450 582 28,300 <2 0 292 108 3,710
<br /> 01/19/01 1290 -860 2,250 178 10 155 244 34,200 G2 0 260 215 3,910
<br /> 04/23/01 1194 -764 19,000 1,780 208 1,480 1600 39,500 <10 0 <100 285 4,780
<br /> 07/27/01 1312 -882 13,000 1,700 98 1,100 730 40,000 <200 <200 290 <20,000
<br /> 11/01/01 1412 982 14,000 1,100 20 980 470 24000 <20 <20 190 2,400
<br /> 01/28/02 1261 831 8 700 1 100 <50 1,000 320 18 000 <250 <250 <250 <2,500
<br /> 04/23/02 1270 -840 4,900 1,000 <3 0 940 210 17 000 <250 <250 <250 <2,500
<br /> 07/23/02 525 1370 845 10 000 850 270 1 000 860 7,400 <5 0 <5 0 79 1 600
<br /> MW-2 09/21/00 474 1323 -849 529 <0 5 <0 5 <0 5 <0 5 5,830 <2 0 <2 0 45 1,150
<br /> 01/19/01 1323 -849 <500 <5 0 <5 0 <5 0 <5 0 21 600 <2 0 <2 0 168 2,520
<br /> 04/23/01 1227 -753 <500 <5 0 <5 0 <5 0 <5 0 10,400 <2 0 <2 0 675 697
<br /> 07/27/01 13 45 -871 190 <0 5 2 0 4 1 29 4,800 <100 <100 <100 <10,000
<br /> 11/01/01 1445 -971 <50 <0 5 <0 5 <0 5 18 3,100 <1 0 <1 0 21 <100
<br /> 01/28/02 1293 -819 <50 <0 5 <0 5 <0 5 <0 5 3,300 <100 <100 <100 <1,000
<br /> 04/23/02 1302 -121 <50 <0 3 <0 3 <0 3 <0 6 3,700 <5 0 <5 0 30 65,000
<br /> 07/23/02 565 1402 -837 <50 <0 3 <0 3 <0 3 <0 6 4,000 <5 0 <5 0 34 61
<br /> MW-3 09/21/00 376 1234 -858 5,900 413 243 562 468 346 G2 0 <2 0 208 <200
<br /> 01/19/01 1230 -854 1,870 1S 2 582 12 9 23 1 682 <2 0 <2 0 443 <200
<br /> 04/23/01 1134 -758 1,160 6 3 <5 0 105 184 683 <2 0 <2 0 423 <200
<br /> 07/27/01 1248 -872 870 21 16 90 17 360 <20 <20 <20 <2,000
<br /> 11/01/01 1352 -976 760 3 5 <0 5 58 9 2 600 <10 <10 46 <100
<br /> 01/28/02 1200 -824 560 59 0 87 46 45 590 <0 5 <0 5 38 <5 0
<br /> 04/23/02 1209 -833 220 091 <0 3 34 44 540 <5 0 <5 0 <5 0 1,800
<br /> 07/23/02 4 67 1302 -835 170 039 039 14 3 0 300 <5 0 <5 0 10 <50
<br /> MW4 07/23/02 480 1328 -848 <50 1 1 <0 3 <0 3 <0 6 14,000 <5 0 8 8 160 <50
<br /> MW-5 07/23/02 5 13 1361 -848 <50 <0 3 0 9 <0 3 12 18,000 <25 <25 150 5,700
<br /> ugll Micrograms per liter DIPS Dusopropyl ether ETBE Ethyl-t-butyl ether
<br /> MSL Mean sea level TPH Total petroleum hydrocarbons TAME Tert-amyl methyl ether
<br /> s Below ground surface MtBE Methyl tert-but 1 ether EDB Ethylene dibromide
<br /> Shaw ERVLTOnMental Infrastructure Inc
<br /> N VucfplSPrulects\Projects5680104011A50i07L3gtr02 8114/2002
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