ARCHIVED REPORTS_GROUNDWATER MONITORING AND PROGRESS REPORT 4TH QUARTER 2011

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Project No.59183-06-03 January 30,2012 Page 19 of 32 TABLE SUMMARY OF GROUNDWATER ELEVATION AND ANALYTICAL DATA-TPHg,BTEX,MTBE AND ETHANOL FORMER VINTAGE CAR WASH 601 EAST MINER AVENUE STOCKTON,CALIFORNIA c a vm 3 2 >' m v 3s' ° m m = o O c X F U1 3 3 q v o v- ` p " All results in micrograms per liter(pg/I) MW-8 12.42 60 to 65 08/25/08 28.68 0 -16.26 <50 <0.50 <0.50 <0.50 <0.50 4.0 <50 MW-8 1242 60 to 65 11/10/08 29.59 0 MW-8 12.42 60 to 65 03/09/09 29.40 0 -17.17 NS <NS <NS <0.50 <NS <S <50 NS MW-8 1242 60 to 65 06/22/09 -16.98 NS NS NS NS NS NS 29.21 0 -16.79 NS prg NS MW-8 1242 60 to 65 09/08/09 NS NS NS NS NS 30.10 0 -17.68 NS NS NS NS MW-8 12.42 60 to 65 01/04/I0 30.84 0 NS NS NS MW-8 12.42 60 to 65 06/07/10 -18.42 <50 <0.50 <0.50 <0.50 <20 <1.0 c 29.16 0 -16.74 NS NS 50 MW-8 12.42 60 to 65 08/17/10 NS NS NS NS NS 29.01 0 -16.59 NS NS NS NS NS MW-8 12.42 60 to 65 12/02/10 29.36 0 N. NS MW-8 12.42 60 to 65 02/28/11 28.34 0 -15.94 NS <NS <0.50 <NS <2.0 < S <50 NS MW-8 12.42 60 to 65 05/18/11 -15.92 NS NS NS NS NS NS 27.14 0 -14.72 NS NS MW-8 12.42 60 to 65 09/28/11 NS NS NS NS NS NS 27.11 0 -14.69 NS NS NS NS NS NS NS MW-9 12.20 115 to 120 11/26/01 30.53 0 MW-9 12.20 115 to 120 02/25/02 -18.33 0 <2 <1. 0 <0.5 <I.0 NS 29.91 5 0 -17.71 50 2 <0.55 <0.50 2 MW-9 12.20 115 to 120 05/07/02 29.90 0 Q.0 NS -17.70 <50 <0.5 <0.5 <O.SO 0.51 <2.0 MW-9 12.20 115 to 120 08/12/02 31.71 0 NS -]9.51 <50 1.6 <0.5 <0.50 <0.5 <2.0 MW-9 12.20 115 to 120 11/05/02 32.91 0 NS -20.71 150 25 2.0 <0.50 1.7 MW-9 12.20 115 to 120 02/04/03 32.40 0 Q.0 NS -20.20 160 <0.50 7 <0.50 0.64 <2.0 MW-9 12.20 115 to 120 05/27/03 32.12 0 NS -19.92 <50 <0.50 1.6 <0.50 <0.50 <2.0 MW-9 12.20 115 to 120 08Y26/03 33.51 0 NS MW-9 12.20 115 to 120 1124/03 21 3I <50 1.3 <0.5 <0.50 <0.50 <2.0 NS 34.22 0 -22.02 <50 <0.50 <0.50 <0.50 <0.50 <2.0 MW-9 12.20 115 to 120 02/16/04 33.48 0 -21.28 NS NS NS NS NS NS NS NS