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

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Table 4 Groundwater Analytical Data -Total Petroleum Hydrocarbons and BTEX 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) m /I m /I m /I (mg/1) (mg/1) (mg/1) (mg/1) A Zone Wells-Area 2Al2B and Adjacent Areas(cont. MW-37(cont.) --- 11/17/05 40.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 2/14/06 <0.05 <0.05 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 5/15/06 <0.05 <0.05 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 8/14106 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 11/14/06 <0.05 <0.05 -- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 2/5/07 <0.05 <0.05 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 5/7/07 <0.05 <0.05 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 7/2/07 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 40.0015 --- 10/8/07 <0.05 0.34 41 - <0.05 <0.0005 <0.0005 <0.0005 40.0015 --- 1!21/08 40.05 -"�'( "'; < ;0$ -" -"-t'.,,. 40.05 40.0005 40.0005 <0.0005rN. ., ""::'40.0015 MW-38 --- 5/5/03 0.16 0.4(0.094) --- <0.05(<0.05) <0.0005 <0.0005 <0.0005 <0.001 --- 8/18/03 12 <0.05 0.17(0.076) - <0.05(<0.05) <0.0005 <0.0005 <0.0005 <0.001 Dup --- 11/11/0312 0.18 0.74(0.37) -- 0.204(0.124) <0.0005 <0.0005 <0.0005 <0.001 --- 11/11/03" 0.17 1.00(0.590) -- 0.204(0.1504) 40.0005 40.0005 40.0005 40.001 --- 02/18/04 12 0.32 0.69(0.40) - 0.204(0.12) <0.0005 <0.0005 <0.0005 <0.001 --- 6/3/04 12 <0.05 0.72(0.45) - 0.3318(0.1918) <0.0005 <0.0005 <0.0005 40.001 -- 9/7104 12 <0.05 0.19(0.12) - <0.10(<0.10) <0.0005 <0.0005 <0.0005 <0.001 --- 12/6104 23 0.081 0.18 -- <0.10 <0.0005 40.0005 <0.0005 <0.001 --- 2/2/05 23 0.051 0.14 - <0.05 <0.0005 <0.0005 <0.0005 <0.001 --- 5/25/05 0.065 0.240 -- <0.05 <0.0005 <0.0005 <0.0005 <0.001 --- 8/24/05 0.12 0.41 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 11/17/05 0.10 0.32 -- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 2114/06 0.11 0.45 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 5/15106 0.16 0.46 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 8/14/06 0.12 0.48 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 11/14/06 0.14 0.52 --- 40.05 <0.0005 40.0005 <0.0005 <0.0015 --- 2/5/07 0.17 0.32 --- <0.05 <0.0005 <0.0005 <0.0005 <0,0015 --- 5/7/07 0.097 0.26 --- 0.07624 <0.0005 <0.0005 40.0005 <0.0015 --- 7/2/07 40.05 0.20 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 --- 10/8/07 0.12 0.37 -- <0.05 <0.0005 40.0005 <0.0005 <0.0015 1/21/08 0.08 0.15 ` 'I _._ �, .:,.:<. MW-39 --- 5/5/03 0.42 0.36(0.094) -- <0.05(<0.05) <0.0005 <0.0005 <0.0005 <0.001 --- 8/18/03 12 0.1 0.23(0.085) - <0.05(<0.05) <0.0005 <0.0005 <0.0005 <0.001 --- 11/11/0312 0.23 0.27(0.120) -- <0.05(<0.05) <0.0005 <0.0005 <0.0005 <0.001 --- 02/18/0412 0.24 0.30(0.14) - <0.05(<0.05) <0.0005 <0.0005 <0.0005 <0.001 -- 6/2/04 12 0.14 0.43 0.18 - 0.07818(<0.0516) <0.0005 <0.0005 <0.0005 <0.001 11TidewaterR9c'Stockton(Parcel 2A-0415)\Tables\OMR Tables\200811 Q08\Parcel2A(Tables 2,4,5,6,7)Histo0w Tables IQ08.xls Pa•of 44