ARCHIVED REPORTS_1ST QUARTER 2008 SITE STATUS REMEDIAL SUMMARY AND GROUNDWATER MONITORING REPORT

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• Tab roleum Hydrocarbons and BTEX • Groundwater Analytical Data-Total South Shore Parcels- Parcel 2A and Adjacent Areas West Weber Avenue and North Lincoln Street Stockton, California Depth Ethyl- Sample (feet, Date TPHg TPHd TPHk TPHo Benzene Toluene benzene Xylenes ID b s) Sampled (mg/1) (mg/1) (m /1) (mg/1) (mg/1) (mg/1) (m /I) (mg/1) C Zone Wells-Areas 2A/2B And Adjacent Areas MW-54 -- 5/24/05 0.31 2.20 --- 0.48021 0.018 <0.0005 <0,0005 <0.0011 --- 8/24/05 0.85 2.0 --- <0.05 0.009 0.00087 <0.0005 0.0029 --- 11/16/05 1.0 1.4 --- <0.05 0.0097 0.0016 <0.0005 0.0041 --- 2/15/06 0.93 1.3 --- <0.05 0.014 0.0017 <0.0005 0.0043 --- 5/17/06 0.99 2.1 --- 0.05316 0.016 0.0015 <0.0005 0.0037 --- 8/17/06 0.59 0.82 --- <0.05 0.0036 0.00082 <0.0005 0.0012 --- 11/16/06 1.3 1.1 --- <0.05 0.0016 0.001 <0.0005 0.0048 --- 2/9/07 1.1 2.2 -- <0.05 0.00086 0.00083 <0.0005 0.0044 --- 5/9/07 0.44 1.8 --- 0.057 31 0.00084 <0.0005 <0.0005 0.0012 --- 7/5/07 0.75 2.1 --- 0.064 37 0.00091 0.00088 <0.0005 0.00317 --- 10/9/07 1.3 2.5 --- 0.075 03 0.0031 0.0013 0.0013 0.0058 -- 1/24/08 1:5. 2.3 ._ <0.05`" 0.0017 00015 ':" - 0.00065. ' 0.0059 .'. D Zone Wells-Areas 2A/2B And Adjacent Areas MW-55 --- 5/24/05 0.16 2.0 --- 0.19()24 <0.0005 <0.0005 <0.0005 <0.001 --- 8/24/05 0.77 2.0 --- 0.12 34 0.011 0.00091 <0.0005 0.0022 --- 11/16/05 0.93 1.4 --- 0.075 20 0.0057 0.0018 <0.0005 0.0028 --- 2/15/06 0.70 1.3 --- <0.05 0.0016 <0.0005 <0.0005 0.0035 --- 5/17/06 1.50 2.3 --- <0.05 0.0053 0.0017 <0.0005 0.0035 --- 8/17/06 1.00 1.1 --- <0.05 0.0031 0.0013 <0.0005 0.00248 --- 11/16/06 1.40 1.3 --- <0.05 0.0055 0.0012 <0.0005 0.003 --- 2/8/07 1.60 2.5 -- <0.05 0.009 0.0016 <0.0005 0.0043 --- 5/9/07 0.89 2.0 --- 0.06831 0.0039 0.0014 <0.0005 0.0037 --- 7/5/07 0.76 1.6 --- 0.086 37 0.0028 0.0014 <0.0005 0.00263 --- 10/9/07 0.90 1.6 --- 0.054 13 0.0041 0.0014 0.0014 0.0046 --- 1/24/08 1 0.86 1.9 --• <005'I '' 0.0021 0:00096 <0.0005 0.0035 Soil Borings SB-1 --- 3/13/03 0.52 <0.5' --- <0.05 <0.0005 <0.0005 <0.0005 0.0014 SB-2 --- 3/12/03 2.1 13.00 --- 1.10 0.0012 <0.0005 0.0024 0.0082 SB-3 --- 3/11/03 0.27 20.00 --- 2.20 <0.0005 <0.0005 <0.0005 <0.001 SB-4 --- 3/11/03 1.5 120.00 --- 14.00 <0.0005 <0.0005 <0.0005 <0.001 SB-5 --- 3/12/03 0.65 2.00 --- 0.10 <0.0005 <0.0005 <0.0005 <0.001 SB-6 --- 3/12/03 0.59 0.68 --- 0.07 <0.0005 <0.0005 0.0013 0.0038 :\Tidewater\TW Stockton(Parcel 2A-0415)\Tables\QMR Tables\2008\1008\Parcel2A(Tables 2,4,5,6,7)Historical GW Tables 1 Q08.xls Page 35 of 44