Laserfiche WebLink
i <br /> TABLE 2 <br /> GROUNDWATER MONITORING DATA <br /> Beacon Station No 3641 <br /> 1210 E Hammer Lane,Stockton,California <br /> Depth to TOC GW <br /> Well TPHg benzene toluene ethylbenzene xylenes MTBE DIPE ETBE TAME TBA methanol ethanol EDC EDB GW Elevation Elevation <br /> Number Date u 11 u n u A u A u A u A (ug/1) u n (ug') u A (ug/11 v A u 11 (ug/1) feet feet msl feet msl Comments <br /> VW-7 03/25/99 25000 5700 3300 1500 1700 2000 <5 0 <5 0 <5 0 200 <50 <5 0 na na 4167 nm nm slight odor/no sheen <br /> screened 06102199 11000 3300 320 1100 230 1700 <50 <5 0 <5 0 92 <100 <5 0 <5 0 <5 0 4194 nm slight odor!no sheen <br /> interval 08/31199 ns ns ns ns ns ns ns ns ns ns ns ns ns ns 4735 nm 0 21 ft FPlsheen <br /> 40'55' 12109!99 87000 2300 1000 1500 5400 6400 <50 <50 <50 <500 <5000 <500 <50 <50 4526 nm no comment <br /> 03101/00 11000 2200 160 640 640 4300 <50 <50 <50 <500 <5000 <500 na na 4247 nm no comment <br /> 06/06/00 15000 2400 440 620 1100 3000 <5 0 <5 0 <5 0 280 <2000 <50 <5 0 <50 41 50 nm clear <br /> 09/14100 46000 440 560 1600 3000 1000 <5 0 <5 0 <5 0 76 <600 <50 <5 0 <5 0 4781 nm dearlsheen <br /> 12/12/00 17000 940 420 450 1600 5200 na na na na na na na na 4416 nm dear <br /> 03/19/01 4100 650 16 180 94 2900 na na na na na na na na 4138 nm dear <br /> 06/19/01 24000 2800 870 770 1800 7300 na na na na na na na na 4386 nm dear <br /> 09127/01 51000 1400 3900 1800 6800 1400 na na na na na na na na 50 01 nm clear <br /> 12/13101 4400 270 70 140 240 2000 na na na na na na na na 4657 nm dear <br /> 03/28/02 24000 1100 760 850 2100 2500 na na na na na na na na 4314 1929 -2385 dear <br /> 06/19/02 36000 2600 2000 1200 4600 5100 na na na na na na na na 4489 -2560 clear <br /> VW-8 03/25199 ns ns ns ns ne ns ns ns ns ns ns ns ns ns dry nm nm dry <br /> screened 06102/99 ns ns ns ns ns ns ns ns ns ns ns ns ns ns dry nm dry <br /> interval 08/31/99 ns ns n$ ns ns ns ns ns ns ns ns ns ns ns dry nm dry <br /> 22 32' 12/09/99 ns ns ns ns ns ns ns ns ns ns ns ns ns ns dry nm dry <br /> 03/01/00 ns ns ns ns ns ns ns ns ns ns ns ns ns ns dry nm dry <br /> 06/06/00 ns ns ns ns ns ns ns ns ns ns ns ns ns ns dry nm dry <br /> 09/14/00 ns ns ns ns ns ns ns ns ns ns ns ns ns ns dry nm dry <br /> 12/12/00 ns ns ns ns ns ns ns ns ns ns ns ns ns ns dry nm dry <br /> 03/19/01 ns ns ns ns ns ns ns ns ns ns ns ns ns ns dry nm dry <br /> 06/19/01 ns ns ns ns ns ns ns ns ns ns ns ns ns ns dry nm dry <br /> 09127/01 ns ns ns ns ns ns ns ns ns ns ns ns ns ns dry nm dry <br /> 12/13/01 ns ns n$ ns ns ns ns n$ ns ns ns ns ns ns dry nm dry <br /> 03/28/02 ns ns ns ns ns ns ns ns ns ns ns ns ns ns dry nm dry <br /> 06/19102 ns ns ns ns ns ns ns ns ns n$ ns ns ns ns dry nm dry <br /> 4 Notes TPHg=total petroleum hydrocarbons as gasoline pgrl=micrograms per liter(parts per billion or ppb) <br /> MTBE=methyl ten butyl ether GW=groundwater <br /> DIPE=dusopropyt ether TOC-top of casing <br /> ETBE-ethyl tert butyl ether na=not analyzed <br /> TAME=tert amyl methyl ether FP=free product <br /> TBA-tert butyl alcohol <br /> I <br /> 641gnu,Ol As <br /> Project No 164115 Page 7 of 7 HORIZON ENVIRONBMNTAL INC <br />