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r� lJ LJ L=1 L_ Lr 1 __.i I--- .i i C I ! ( 'J I r I ! I 1 I I 1 I ! I ! I 1 <br /> TABLE 1 <br /> Detected Concentrations of Volatile Organic Compounds <br /> Push-In Polyvinyl Chloride Piezometer (PIPP) Groundwater and Selected Monitoring Well Samples <br /> Lincoln Center, Stockton, California <br /> (Concentrations in micrograms per tiler(pg10) <br /> Sample Dichloro- <br /> Sam le ID Date Depth trans-1,2 Vinyl Chloro- <br /> Sam led Interval PGE TCE cis-1,2 DCE OCE Chloride 1,1-DCE 1,1,1-TCA Benzene difloro- form <br /> P methane <br /> (feet bgs) <br /> I'I PI'-112-57 12/2/96 54-57 97 41.5 '0.5 0.5 <2 <0.5 <0.5 NA <2 <0.5 <br /> • PIPP-112-63 12/2/96 60-63 990 <30 <30 <30 <100 <30 <30 NA <100 <30 <br /> PIPP-112-80 12/3/96 76-80 110 <3 <3 <3 <10 <3 <3 NA <10 <3 <br /> PIPP-115-61 12/4/96 58-61 610 <5 <5 <5 <20 <5 <5 NA <20 <5 <br /> PIPPA 15-72 12/4/96 69-72 350 8 19 <5 <20 <5 <5 NA <20 <5 <br /> PIPP-115-72 12/4/96 Duplicate 390 9 22 <5 <20 <5 <5 NA <20 <5 <br /> PIpp-115-81 12/4/96 77-81 520 15 29 <'5 <20 <5 <5 NA <20 <5 <br /> PIPP-116-62.5 12/23/96 61.5-62.5 4.4 1.6 <0.5 <0.5 <2 24 5.6 NA <2 <0.5 <br /> Pl PP-116-69 12/23/96 68-69 7.0 4.9 <0.5 <0.5 <2 60 17 NA <2 <0.5 <br /> PIP11-116-80 12/23/96 76-80 2.4 <0.5 <0.5 <0.5 <2 <0.5 <0.5 NA <2 <0.5 <br /> P11111-117-60 12/23/96 57-60 <0.5 <0.5 <0.5 <0.5 <2 <0.5 <0.5 NA <2 <0.5 <br /> • H PP-117-69 12/23/96 68-69 <0.5 -=0.5 <0.5 <0.5 <2 <0.5 <0.5 NA <2 <0.5 <br /> PIPP-117-76 12/23/96 75-76 <0.5 <0.5 <0.5 <0.5 <2 <0.5 <0.5 NA <2 <0.5 <br /> MW-100 11/1/96 - 3,400 22 13 <1 <I <1 <I 1.1 <I 2.0 <br /> MW-100 11/12/96 - 970 5.7 3.2 <0.5 <0.5 <I <I 0.29 <1 0.44 <br /> MW-101 11/15/96 - 7.000 200 220 <50 <50 <50 <50 <50 <50 <50 <br /> PIPP.INT Page 3 of 4 1/13/97 <br />