ARCHIVED REPORTS_ANNUAL 2009 GROUNDWATER MONITORING AND SAMPLING REPORT

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r it r� r �r rr ■r r �r rr ri �r rr ■■■ r r r r r TABLE 4 SUMMARY OF SPO EXTRACTED ALDEN PARK Tracy,California Thickness of Oil(feet)in Monitoring Wells Estimated MW-1 MW-3 MW-6 MW-15 MW-16 MW-18 MW-20 MW-5 MW-21 Volume Date Feet Gallons Feet Gallons Feet Gallons Feet Gallons Feet Gallons Feet Gallons Feet Gallons Gallons Gallons (gallons) 04/03/97 1.00 0.65 0.25 0.16 0.20 0.13 0.10 0.07 1.50 0.98 0.06 0.04 0.02 0.01 2.05 07/10/97 3.00 1.96 2.00 1.31 2.00 1.31 2.00 1.31 2.50 1.63 1.00 0.65 0.17 0.11 8.27 10/10/97 3.00 1.96 5.00 3.27 3.00 1.96 1.00 0.65 7.00 4.57 7.00 4.57 <0.01 --- 16.98 01/30/98 0.65 0.42 2.00 1.31 2.20 1.44 1.10 0.72 1.30 0.85 0.41 0.27 0.12 0.08 5.08 05/28/98 1.08 0.71 1.67 1.09 1.75 1.14 <0.01 --- 3.00 1.96 4.92 3.21 0.25 0.16 8.27 08/19/98 2.83 1.85 2.21 1.44 1.13 0.74 0.08 0.05 7.17 4.68 3.58 2.34 0.17 0.11 11.21 11/11/98 1.42 0.93 1.75 1.14 1.81 1.18 0.25 0.16 5.90 3.85 4.10 2.68 0.25 0.16 10.11 03/31/99 3.25 2.12 2.25 1.47 2.42 1.58 0.75 0.49 6.58 4.30 5.67 3.70 NM NM 13.66 05/28/99 2.42 1.58 3.00 1.96 6.17 4.03 3.92 2.56 6.50 4.24 6.17 4.03 0.17 0.11 18.51 09/21/99 2.75 1.80 NM NM 4.91 3.21 3.59 2.34 9.54 6.23 9.55 6.24 0.02 0.01 19.83 12/02/99 2.62 1.71 2.20 1.44 3.80 2.48 4.16 2.72 5.31 3.47 9.77 6.38 0.01 0.01 18.20 06/14/00 1.88 1.23 2.14 1.40 6.94 4.53 3.17 2.07 4.15 2.71 5.48 3.58 0.05 0.03 15.55 07/20/00' NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 10/17/002 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 01/23/01 4.20 2.74 11.15 7.28 0.97 0.63 5.00 3.27 8.35 5.45 10.60 6.92 4.30 2.81 29.10 05/29/01 1.08 0.71 2.04 1.33 6.67 4.36 2.08 1.36 2.83 1.85 4.42 2.89 0.08 0.05 12.54 07/25/01 3.46 2.26 4.33 2.83 6.69 4.37 2.42 1.58 0.33 0.22 5.04 3.29 0.08 0.05 14.59 10/30/01 3.75 2.45 NM NM NM NM 2.50 1.63 NM NM 5.17 3.38 --4 --- 7.46 01/30/02 4.67 3.05 5.40 3.53 7.67 5.01 3.06 2.00 1.21 0.79 6.17 4.03 0.04 0.03 18.43 04/24/02 4.12 2.69 4.79 3.13 5.58 3.64 2.83 1.85 1.38 0.90 6.04 3.94 0.06 0.04 16.19 07/23/02 3.92 2.56 3.92 2.56 7.44 4.86 3.38 2.21 2.50 1.63 5.52 3.60 1.75 1.14 18.56 11/27/02 2.75 1.80 3.83 2.50 5.25 3.43 2.25 1.47 1.33 0.87 4.79 3.13 0.08 0.05 13.24 03/11/03 4.90 3.20 3.30 2.15 4.20 2.74 2.56 1.67 2.05 1.34 9.35 6.11 0.05 0.03 17.25 05/15/03 0.90 0.59 1.20 0.78 2.00 1.31 1.75 1.14 3.30 2.15 0.90 0.59 3.10 2.02 8.59 08/27/03 1.33 0.87 0.25 0.16 1.83 1.19 1.92 1.25 0.83 0.54 1.17 0.76 0.083 0.05 --4 4.84 4 15.70 11/23/03 1.50 0.98 4.81 3.14 5.83 3.81 1.00 0.65 6.00 3.92 4.41 2.88 0.500 0.33 --- 03/01/04 1.00 0.65 ---5 ---5 2.00 1.31 2.25 1.47 2.50 1.63 1.75 1.14 0.830 0.54 --4 6.75 05/13/04 1.42 0.93 5.66 3.70 1.66 1.08 2.08 1.36 1.00 0.65 7.92 5.17 0.540 0.35 --6 13.24 08/04/04 1.50 0.98 2.50 1.63 2.00 1.31 0.90 0.59 3.12 2.04 3.58 2.34 1.08 0.71 _-6 9.59 11/18/04 2.45 1.60 4.90 3.20 2.55 1.67 2.50 1.63 4.66 3.04 7.80 5.09 2.15 1.40 -- b -- 6 17.64 1.25 0.82 2.42 1.58 2.67 1.74 0.83 0.54 2.41 1.57 5.25 3.43 1.17 0.76 _ - 6 --6 10.45 02/15/05 ' --- 1.18 0.77 - b 6 3.57 06/01/05 --- --- 0.93 0.61 0.19 0.12 0.99 0.65 2.18 1.42 --- -.0 08/18/05 0.00 0.00 2.51 1.64 0.98 0.64 2.48 1.62 5.07 3.31 1.22 0.80 0.78 0.51 -- b 0.09 8.61 e-A i .:7,AAFL., From Science to solutions Page I of 2