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TABLE 1A <br />CUMULATIVE GROUNDWATER MONITORING AND SAMPLING DATA <br />Former Mobil Service Station 99CAS <br />75 East Alpine Avenue <br />Stockton, California <br />(Page 6 of 13) <br />Well Sampling TOC DTW GW Elev, NAPL TPHd TPHg O&G MTBE 8 T E X PCBs SVOCs <br />ID Date (feet) (feet) (feet) (feet) (ug/L) (Ng/L) (Ng/L) (ug/L) (ug/L) (Ng/L) (ug/L) (ug/L) (Ng/L) (Ng/L) <br />MW6 <br />11/26/07 <br />16.31 <br />37.61 <br />-21.30 <br />No <br /><47 <br /><50 <br />--- <0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 - -- <br />MW6 <br />02/28/08 <br />16.31 <br />35.20 <br />-18.89 <br />No <br /><47.2 <br /><50.0 <br />--- <0.500 <br /><0.500 <br />7.89 <br /><0.500 <br /><0.500 - <br />MW6 <br />05/29/08 <br />16.31 <br />35.78 <br />-19.47 <br />No <br /><47.2 <br /><50.0 <br />--- <0.500 <br /><0.500 <br /><0.500 <br /><0.500 <br /><0.500 --- <br />MW6 <br />08/27/08 <br />16.31 <br />38.09 <br />-21.78 <br />No <br /><47 <br /><50 <br />-- <0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 - <br />MW6 <br />11/13/08 <br />16.31 <br />38.38 <br />-22.07 <br />No <br /><47 <br /><50 <br />--- <0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 - <br />MW6 <br />01/28/09 <br />16.31 <br />39.29 <br />-22.98 <br />No <br /><50 <br /><50 <br />- <0.50 <br />0.35j <br />0.42j <br /><0.50 <br />0.45j <br />MW6 <br />04/29/09 <br />16.31 <br />39.00 <br />-22.69 <br />No <br /><50 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 - <br />MW6 <br />07/14/09 <br />16.31 <br />40.80 <br />-24.49 <br />No <br /><50 <br /><50 <br />- <0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 -- - <br />MW6 <br />10/27/09 <br />16.31 <br />41.10 <br />-24.79 <br />No <br /><50 <br /><50 <br />- <0.50 <br /><0.50 <br />0.37j <br />0.048] <br />0.26j - - <br />MW6 <br />01/25/10 <br />16.31 <br />39.18 <br />-22.87 <br />No <br /><50 <br /><50 <br />--- <0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 -- <br />MW6 <br />04/07/10 <br />16.31 <br />37.35 <br />-21.04 <br />No <br /><50 <br /><50 <br />--- <0.50 <br /><0.50 <br />0.36 <br /><0.50 <br />0.18j - <br />MW6 <br />08/09/10 <br />16.31 <br />37.26 <br />-20.95 <br />No <br /><50 <br /><50 <br />--- <0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.092] <br />MW6 <br />10/05/10 <br />16.31 <br />37.98 <br />-21.67 <br />No <br /><50 <br />63d <br />- <0.50 <br /><0.50 <br />0.29j <br /><0.50 <br /><0.50 <br />MW6 <br />02/09/11 <br />16.31 <br />36.59 <br />-20.28 <br />No <br /><50a <br />50j <br />- <0.50 <br />0.56 <br />5.5 <br />0.52 <br />3.2 <br />MW6 <br />05/18/11 <br />16.31 <br />Unable to locate well. <br />MW6 <br />09/22/11 <br />16.31 <br />Unable to locate well. <br />MW6 <br />11/30/11 <br />16.31 <br />32.41 <br />-16.10 <br />No <br /><50a <br /><50 <br />- <0.50 <br /><0.50 <br />1.4 <br /><0.50 <br />0.60 ... <br />MW6 <br />03/14/12 <br />16.31 <br />31.72 <br />-15.41 <br />No <br /><50a <br /><50 <br />- <0.50 <br />1.7 <br />0.60 <br /><0.50 <br />0.71 -- -- <br />MW6 <br />05/03/12 <br />16.31 <br />31.43 <br />-15.12 <br />No <br /><50a <br /><50 <br />- <0.50 <br /><0.50 <br />3.4 <br />0.52 <br />2.5 ... <br />MW6 <br />08/24/12 <br />m <br />16.31 <br />- <br />--- <br />--- <br />--- --- <br />--- <br />- <br />-.. <br />... ... <br />MW6 <br />10/24/12 <br />m <br />16.31 <br />--- <br />-•• <br />--- <br />--- <br />••. <br />•-- <br />MW6 <br />01/30/13 <br />16.31 <br />31.78 <br />-15.47 <br />No <br />--- <br />--- <br />--- <br />•-- <br />-- <br />MW6 <br />01/31/13 <br />16.31 <br />-- <br />-•- <br /><50a <br /><50 <br />•.. <0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 - - <br />MW6 <br />05/03/13 <br />m <br />16.31 <br />- <br />- <br />- <br />- <br />MW6 <br />08/21/13 <br />m <br />16.31 <br />.-- <br />--- <br />MW6 <br />12/18/13 <br />m <br />16.31 <br />--- <br />--- <br />-- <br />- - <br />MW6 <br />03/19/14 <br />16.31 <br />32.04 <br />-15.73 <br />No <br /><48a <br /><50 <br />--- <0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 --- --- <br />MW6 <br />06/12/14 <br />m <br />16.31 <br />33.16 <br />-16.85 <br />No <br />- <br />--- <br />--- <br />--- <br />--- <br />--- <br />MW6 <br />08/01/14 <br />m <br />16.31 <br />--- <br />-- <br />- - <br />--- <br />--- <br />MW6 <br />10/28/14 <br />m <br />16.31 <br />--• <br />-- <br />- <br />- <br />MW6 <br />02/05115 <br />16.31 <br />36.14 <br />-19.83 <br />No <br /><50a <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 - <br />MW7 <br />11/26/07 <br />14.67 <br />36.31 <br />-21.64 <br />No <br /><47 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 - <br />MW7 <br />02/28/08 <br />14.67 <br />33.90 <br />-19.23 <br />No <br /><47.2 <br /><50.0 <br />--- <0.500 <br /><0.500 <br />4.78 <br /><0.500 <br /><0.500 --- --- <br />MW7 <br />05/29/08 <br />14.67 <br />34.40 <br />-19.73 <br />No <br /><47.2 <br /><50.0 <br />--- <0.500 <br /><0.500 <br /><0.500 <br /><0.500 <br /><0.500 --- --- <br />MW7 <br />08/27/08 <br />14.67 <br />36.93 <br />-22.26 <br />No <br /><47 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 -- - <br />MW7 <br />11/13/08 <br />14.67 <br />37.24 <br />-22.57 <br />No <br /><47 <br /><50 <br />--- <0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />MW7 <br />01/28/09 <br />14.67 <br />38.05 <br />-23.38 <br />No <br /><50 <br /><50 <br />- <0.50 <br />0.21i,j <br />0.35j <br />0.23i,j <br />0.87j --- <br />MW7 <br />04/29/09 <br />14.67 <br />37.80 <br />-23.13 <br />No <br /><50 <br /><50 <br />--- <0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 - <br />MW7 <br />07/14/09 <br />14.67 <br />39.60 <br />-24.93 <br />No <br /><50 <br />64 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 - <br />MW7 <br />10/27/09 <br />14.67 <br />40.01 <br />-25.34 <br />No <br /><50 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.085] --- --- <br />MW7 <br />01/25/10 <br />14.67 <br />37.90 <br />-23.23 <br />No <br /><50 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 - - <br />MW7 <br />04/07/10 <br />14.67 <br />36.05 <br />-21.38 <br />No <br /><50 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.093] - - <br />