ARCHIVED REPORTS_GROUNDWATER MONITORING AND PROGRESS REPORT 4TH QUARTER 2011

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Project No.59183-06-03 January 30,2012 Page 22 of 32 TABLE I SUMMARY OF GROUNDWATER ELEVATION AND ANALYTICAL DATA-TPHg,BTEX.MTBE AND ETHANOL FORMER VINTAGE CAR WASH 601 EAST MINER AVENUE STOCKTON.CALIFORNIA m h a 0 s o f � d a cy m n o 6 g All results in micrograms per liter(µg/1) 3 3 `✓ � � q o � �. �- MW-10 11.97 65 to 75 05/27/08 28.11 0 -16.14 140 1.6 0.52 <0.50 <0.50 32 <50 MW-10 11.97 65 to 75 0825/08 28.86 0 -16.89 100 0.93 <0.50 <0.50 1.8 19 120 MW-10 11.97 65 to 75 11/10/08 29.81 0 -17.84 100 0.61 <0.50 0.80 2.6 18 250 MW-10 11.97 65 to 75 03/09/09 29.58 0 -17.61 NS NS NS NS NS NS NS MW-10 11.97 66 to 75 0622/09 29.45 0 -17.48 NS NS NS NS NS NS NS MW-10 11.97 65 to 75 09/08/09 30.48 0 -18.51 NS NS NS NS NS NS NS MW-10 11.97 65 to 75 01/04/10 31.19 0 -19.22 160 2.7 3.8 12 18 11 86 _ MW-10 11.97 65 to 75 06/07/10 29.38 0 -17.41 NS NS NS NS NS NS NS MW-10 11.97 65 to 75 08/17/10 29.24 0 -17.27 NS NS NS NS NS NS NS MW-10 11.97 65 to 75 12/02/10 29.55 0 -17.58 53 1.2 0.53 0.64 2.4 6.3 <50 MW-10 11.97 65 to 75 02/28/11 28.50 0 -16.53 NS NS NS NS NS NS NS MW-10 11.97 65 to 75 05/18/11 27.81 0 -15.84 NS NS NS NS NS NS NS MW-10 11.97 65 to 75 0928/11 27.19 0 -15.22 NS NS NS NS NS NS NS MW-I1 1L96 109 to 114 11/26/01 31.16 0 -19.20 <50 <1.0 <1.0 <1.0 <0.5 LO NS MW-11 11.96 109 to 114 02/25/02 30.38 0 -18.42 86 32 <0.5 <0.50 0.53 6.3 NS MW-11 11.96 109 to 114 05/07/02 30.41 0 -18.45 <50 15 0.68 <0.50 0.57 2.5 NS MW-11 11.96 109 to 114 08/12/02 32.20 0 -20.24 110 47 0.77 <0.50 <0.50 1.5 NS MW-11 11.96 109 to 114 11/05/02 33.62 0 -21.66 <50 5.0 1.3 <0.50 0.51 Q.0 NS MW-11 11.96 109 to 114 02/04/03 33.06 0 -21.10 200 75 2.5 <0.50 <0.50 <2.0 NS MW-11 11.96 10910114 0527/03 32.65 0 -20.69 250 95 4 <0.50 1 <2.0 NS MW-11 11.96 109 to 114 08/26/03 34.04 0 -22.08 <50 <0.50 <0.50 <0.50 <0,50 <2.0 NS MW-11 11.96 109 to 114 1124/03 34.96 0 -2300 180 86 2.1 <0.50 0.61 2.5 NS