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

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• • Groundwater Analytical Data-TotTaal Petroleum Hydrocarbons and BTEX South Shore Parcels-Parcel 2A and Adjacent Areas West Weber Avenue and North Lincoln Street Stockton, California Depth Ethyl- Sample (feel, Date TPHg TPHd TPHk TPHo Benzene Toluene benzene Xylenes ID b s) Sampled mg/I) mg/1) (m /I) ((mg/l (m /I) ((mg/1) (mg/1) (mg/1) A Zone Wells-Area 2AI2B and Adjacent Areas(cont. MW-18(cont.) --- 11/16/06 4.3 <1.5 - <0.05 0.0020 0.0011 0.0013 0.0050 --- 2/8/07 4.6 <2.0 6. - <0.05 0.0021 0.0011 0.0016 0.0052 --- 5/9/07 4.3 <2.0 s - 0.10 0.0023 0.0014 0.0014 0.0055 --- 7/3/07 Not sampled-no access agreement --- 10/8/07 Not sampled-no access agreement --- 1/24108 4.2 <0.89 --- <0.05 0.0014 0.001 0.0014 0.00447 ` MW-19 --- 4/15/03 9.8 2.50 --- <0.05 2.0 0.042 0.03 0.091 --- 5/8/03 14 4.40 -- 0.22 4 3.2 0.051 0.067 0.097 8/21/03 15 2.50 -- 0.08 3.5 0.06 0.19 0.11 - 11/13/03 16 5.40 -- 0.270° 2.7 0.062 0.21 0.082 -- 2/20/04 17 3.70 -- 0.19 16 3.4 0.079 0.35 0.116 6/3/04 12 4.30 -- 0.25 d 2.9 0.046 0.14 0.061 -- 9/9/04 17 2.20 --- 0.07816 4.0 0.097 0.33 0.127 12/10/04 14 1.90 -- 0.110" 3.1 0.076 0.24 0.101 -- 2/25/05 15 1.60 -- <0.05 2.8 0.078 0.28 0.128 --- 5/27/05 15 2.20 -- 0.10016 3.2 0.033 <0.0025 0.064 --- 8/24/05 14 2.10 - <0.05 2.9 0.087 0.28 0.137 11/16/05 14 <2.00 8 -- <0.05 3.2 0.067 0.17 0.091 -- 2/16/06 13 <1.50 6 - <0.05 3.0 0.120 26 0.31 0.176 -- 5/15/06 Not sampled due to Sheen 8/16/06 15 1.9 -- 0.0928 3.0 0.07 0.19 0.088 - 11/14/06 Not sampled due to Sheen 2/5/07 Not sampled due to Sheen -- 5/7/07 Not sampled due to Sheen -- 713/07 Not sampled due to Sheen -- 10/8/07 Not sampled-no access agreement Not sampled due to Sheen MW-20 - 4/15/03 1.0 31.00 -- 0.062 4 <0.0005 <0.0005 <0.0005 <0.001 -- 5/8/03 0.8 44.00 --- 0.5 4 <0.0005 <0.0005 <0.0005 <0.001 8/21/03 0.97 3.90 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 -- 11/13/03 0.60 23.00 --- 0.260° <0.0005 <0.0005 <0.0005 <0.001 --- 2/20/04 0.46 16.00 - 0.1418 0.00067 <0.0005 <0.0005 <0.001 -- 6/2/04 0.57 14.00 - 0.1616 <0.0005 <0.0005 <0.0005 <0.001 --- 9/9/04 0.65 5.40 - 0.07116 0.00052 0.00052 <0.0005 <0.001 -- 12/9/04 0.62 6.70 - <0.05 <0.0005 <0.0005 <0.0005 <0.001 -- 2/25/05 1 0.61 5.20 <0.05 <0.0005 <0.0005 <0.0005 <0.001 IATidewateATW Stockton(Parcel 2A-0415)\Tables\QMR Tables\2008\1 Q08\Parcel2A(Tables 2,4,5,6,7)Historical GW Tables 1008.xls Page 11 of 44