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TABLE 1B <br />ADDITIONAL CUMULATIVE GROUNDWATER MONITORING AND SAMPLING DATA <br />Former Mobil Service Station 99CAS <br />75 East Alpine Avenue <br />Stockton, California <br />(Page 5 of 11) <br />Well Sampling DIPE ETBE TAME TBA 1,2 -DCA EDB Ethanol Methanol <br />ID Date (pg/L) (Ng/L) (pg/L) (ug/L) (Ng/L) (Ng/L) (ug/L) (Ng/L) <br />MW6 <br />11/26/07 <br /><20 <br /><20 <br /><20 <br /><20 <br /><0.50 <br /><20 <br /><100 <br /><100 <br />MW6 <br />02/28/08 <br /><10.0 <br /><10.0 <br /><10.0 <br /><10.0 <br /><0.500 <br /><10.0 <br /><100 <br /><5,000 <br />MW6 <br />05/29/08 <br /><10.0 <br /><10.0 <br /><10.0 <br /><10.0 <br /><0.500 <br /><10.0 <br /><100 <br /><5,000 <br />MW6 <br />08/27/08 <br /><20 <br /><20 <br /><20 <br /><20 <br /><0.50 <br /><20 <br /><100 <br /><100 <br />MW6 <br />11/13/08 <br /><20 <br /><20 <br /><20 <br /><20 <br /><0.50 <br /><20 <br /><100 <br /><100 <br />MW6 <br />01/28/09 <br /><10 <br /><10 <br /><10 <br /><10 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW6 <br />04/29/09 <br /><10 <br /><10 <br /><10 <br /><10 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW6 <br />07/14/09 <br /><10 <br /><10 <br /><10 <br /><10 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW6 <br />10/27/09 <br /><10 <br /><10 <br /><10 <br /><10 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW6 <br />01/25/10 <br /><10 <br /><10 <br /><10 <br /><10 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW6 <br />04/07/10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br />--- <br />--- <br /><50 <br /><100 <br />MW6 <br />08/09/10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW6 <br />10/05/10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW6 <br />02/09/11 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><50 <br /><100 <br />MW6 <br />05/18/11 <br />Unable to locate well. <br />MW6 <br />09/22/11 <br />Unable to locate well. <br />MW6 <br />11/30/11 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />--- <br />--- <br />MW6 <br />03/14/12 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />--- <br />--- <br />MW6 <br />05/03/12 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />... <br />- <br />MW6 <br />08/24/12 <br />m <br />--- <br />--- <br />•-• <br />.-• <br />•-• <br />--- <br />MW6 <br />10/24/12 <br />m <br />--- <br />--- <br />-- <br />--- <br />.-• <br />--- <br />MW6 <br />01/31/13 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />MW6 <br />05/03/13 <br />m <br />--- <br />--- <br />-- <br />- <br />•-• <br />- <br />- <br />MW6 <br />08/21/13 <br />m <br />- <br />- <br />MW6 <br />12/18/13 <br />m <br />-•• <br />--- <br />--- <br />--- <br />--- <br />--- <br />MW6 <br />03/19/14 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />MW6 <br />06/12/14 <br />m <br />--- <br />--- <br />-- <br />MW6 <br />08/01/14 <br />m <br />- <br />- <br />MW6 <br />10/28/14 <br />m <br />- <br />--- <br />...- <br />MW6 <br />02/05/15 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />--- <br />MW7 <br />11/26/07 <br /><20 <br /><20 <br /><20 <br /><20 <br /><0.50 <br /><20 <br /><100 <br /><100 <br />MW7 <br />02/28/08 <br /><10.0 <br /><10.0 <br /><10.0 <br /><10.0 <br /><0.500 <br /><10.0 <br /><100 <br /><5,000 <br />MW7 <br />05/29/08 <br /><10.0 <br /><10.0 <br /><10.0 <br /><10.0 <br /><0.500 <br /><10.0 <br /><100 <br /><5,000 <br />MW7 <br />08/27/08 <br /><20 <br /><20 <br /><20 <br /><20 <br /><0.50 <br /><20 <br /><100 <br /><100 <br />MW7 <br />11/13/08 <br /><20 <br /><20 <br /><20 <br /><20 <br /><0.50 <br /><20 <br /><100 <br /><100 <br />MW7 <br />01/28/09 <br /><10 <br /><10 <br /><10 <br /><10 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW7 <br />04/29/09 <br /><10 <br /><10 <br /><10 <br /><10 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW7 <br />07/14/09 <br /><10 <br /><10 <br /><10 <br /><10 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW7 <br />10/27/09 <br /><10 <br /><10 <br /><10 <br /><10 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW7 <br />01/25/10 <br /><10 <br /><10 <br /><10 <br /><10 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />MW7 <br />04/07/10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br />.-- <br />••• <br /><50 <br /><100 <br />