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Table 4 <br /> Groundwater Analytical Data-Total Petroleum Hydrocarbons,BTEX,MTBE,TBA,and As <br /> South Shore Parcels-Parcel 2A and Adjacent Areas <br /> West Weber Avenue and North Lincoln Street <br /> Stockton,California <br /> Depth Ethyl- <br /> Sample (feet, Date TPHg TPHd TPHo Benzene Toluene benzene Xylenes MTBE TBA As <br /> ID b s) Sampled (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (Mg/1) (mg/1) (mg/1) (Mg/1) (mg/1) <br /> A Zone Wells-Area 2A/2B and Adjacent Areas(cont.) <br /> MW-3(cont.) --- 1/17/12 Well not sampled 45 <br /> --- 4/16/12 Well not sampled 45 <br /> --- 7/16/12 Well not sampled 45 <br /> --- 10/15/12 Well not sampled <br /> MW-4 --- 6/10/90 --- --- --- --- --- --- --- --- --- 0.26 <br /> 21 7/24/90 91 38.00 --- 3.4 13 2.8 14 --- --- --- <br /> --- 11/17/95 23 15.00 --- 0.46 2.1 1.4 3.1 <0.125 --- 0.26 <br /> --- 10/18/96 14 <1.0 <0.2 0.37 1.2 1.1 2.9 --- --- 0.28 <br /> --- 1/19/99 6.93 --- --- 0.101(0.0849)* 0.517(0.458)* 0.418(0.419)* 1.07(1.08)* <0.01 <0.2 --- <br /> --- 2/27/99 --- 3.41 --- --- --- --- --- -- <br /> --- 5/20/02 16 3.6(1.3) <0.3(<0.3) <0.05 1.4 1.2 2.63 <0.05 --- 0.23 <br /> --- 9/30/02 17 <5.0(<5.0) <0.1(<0.1) 0.014 1.4 1.2 2.81 <0.005 <0.05 0.11 <br /> --- 12/5/02 13 8.4(7.0) <0.1(<0.1) 0.0064 0.74 0.89 1.81 0.0034 0.037 0.288 <br /> --- 3/5/03 17 <5.5 0.0964 <0.010 1.1 1.3 2.47 <0.010 <0.100 0.253 <br /> --- 5/8/03 14 9.90 0.14 0.008 0.79 1 1.84 <0.005 <0.05 0.190 <br /> --- 8/21/03 22 5.70 0.08 0.01 1.0 1.4 2.79 0.0058 <0.05 0.180 <br /> --- 11/13/03 16 101 <br /> 0.280° 0.0078 0.75 0.93 1.79 <0.005 <0.05 0.184 <br /> --- 2/20/04 19 7.00 0.2416 0.0074 1.0 1.3 2.53 0.0063 <0.05 0.350 <br /> --- 6/3/04 14 11.00 0.32° 0.007 0.59 0.9 1.72 0.0066 0.027 --- <br /> --- 9/9/04 17 13.00 0.114 0.0078 0.71 0.86 1.77 0.00811 0.034 0.330 <br /> --- 12/10/04 23 31.00 0.19 4 0.0041 11 0.93 1.5 3.03 0.0064 0.031 --- <br /> --- 2/25/05 29 284 0.324 0.015 1.20 1.6 3.18 0.0074 <0.05 0.160 <br /> --- 5/26/05 18 4.2' 0.056" 0.011 0.88 1.1 2.69 0.0053 <0.02 --- <br /> --- 8/24/05 1s 11.00 <0.05 0.0089 0.59 1 1.89 0.0052 <0.025 0.25 <br /> --- 11/14/05 Not sampled due to Sheen <br /> --- 2/16/06 15 <5.0 a <0.05 0.0074 0.76 0.97 2.15 0.0053 0.04 0.385 <br /> --- 5/15/06 Not sampled due to Sheen <br /> --- 8/16/06 14 <4.0 a <0.05 0.035 0.89 1.2 2.06 0.0083 <0.015 0.15 <br /> --- 11/14/06 Not sampled due to Sheen <br /> --- 2/5/07 Not sampled due to Sheen <br /> --- 5/7/07 Not sampled due to Sheen <br /> --- 7/5/07 12 120 0.2217 <br /> 0.013 0.52 0.94 1.77 0.0075 <0.02 0.3 <br /> --- 10/10/07 20 98 0.1721 0.022 1.1 1.4 3.16 0.008 <0.025 --- <br /> --- 1/25/08 16 <8.0' <0.05 0.023 1.0 1.2 2.86 0.0093 <0.025 0.2 <br /> --- 4/21/08 Not sampled due to Sheen <br /> --- 7/21/08 Not sampled due to Sheen <br /> --- 10/20/08 Not sampled due to Sheen <br /> --- 1/19/09 Well abandoned due to Unocal Excavation 51 <br /> MW-5 23 7/24/90 7.7 0.68 --- 0.047 0.0067 0.023 0.015 --- --- --- <br /> --- 10/18/96 1.2 <0.05 <0.2 0.004 0.094 0.074 0.31 --- --- 0.11 <br /> 1/19/99 0.415 --- ND/ND* 0.00713(0.00549)* 0.0117(0.011)* 0.0405(0.0319)* 0.121 <0.10 --- <br /> --- 2/27/99 --- 0.19 --- --- --- --- --- --- --- --- <br /> --- 9/2/99 0.159 0.12 --- <0.0025 <0.0025 <0.0025 <0.0025 --- --- --- <br /> --- 7/19/02 2,446 1.9(1.4) <0.3(<0.3) <0.017 <0.017 <0.017 <0.017 0.18 --- 0.054 <br /> --- 9/30/02 2.0 <0.5(<0.3) <0.1(<0.1) <0.0005 <0.0005 0.017 <0.001 0.13 0.013 0.052 <br /> --- 12/5/02 3.1 <1.5(<1.0) <0.05(<0.05) <0.001 0.014 0.059 0.164 --- --- 0.04 <br /> (FD) --- 12/5/02 3.5 <1.5(<1.5) <0.05(<0.05) <0.001 0.012 0.05 0.142 0.012 <0.01 0.035 <br /> --- 3/5/03 3.4 <2.0(<1.5) <0.05(<0.05) <0.0005 <0.0005 0.0014 <0.001 0.11 0.0076 0.037 <br /> Stantec <br /> 20120924-Parcel2A(Tables 4,5,6,7)Historical GW Tables 4Q12.xlsx Page 2 of 61 <br />