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TABLE IB <br />ADDITIONAL CUMULATIVE GROUNDWATER MONITORING AND SAMPLING DATA <br />Former Mobil Service Station 99CAS <br />75 East Alpine Avenue <br />Stockton, California <br />(Page 7 of 11) <br />Well Sampling DIPE ETBE TAME TBA 1,2 -DCA EDB Ethanol Methanol <br />ID Date (ug/L) (Ng/L) (ug/L) (ug/L) (Ug/L) (Ng/L) (Ng/L) (Ng/L) <br />DWI <br />02/23/09 <br /><50 <br /><50 <br /><50 <br /><1,000 <br /><50 <br /><50 <br /><5,000 <br />--- <br />DWI <br />04/29/09 <br /><250 <br /><250 <br /><250 <br /><5,000 <br /><250 <br /><250 <br /><25,000 <br /><100 <br />DWI <br />07/14/09 <br /><50 <br /><50 <br /><50 <br /><1,000 <br /><50 <br /><50 <br /><5,000 <br />510 <br />DWI <br />10/27/09 <br /><25 <br /><25 <br /><25 <br /><500 <br />48 <br /><25 <br /><2,500 <br /><100 <br />DWI <br />01/25/10 <br /><12 <br /><12 <br /><12 <br /><250 <br /><12 <br /><12 <br /><1,200 <br /><100 <br />DWI <br />04/07/10 <br /><10 <br /><10 <br /><10 <br /><200 <br />--- <br />--- <br /><1,000 <br /><100 <br />DWI <br />08/10/10 <br /><10 <br /><10 <br /><10 <br /><200 <br />--- <br />- <br /><1,000 <br /><100 <br />DWI <br />10/05/10 <br /><10 <br /><10 <br /><10 <br /><200 <br />--- <br />-- <br /><1,000 <br /><100 <br />DWI <br />02/09/11 <br /><10 <br /><10 <br /><10 <br /><200 <br />21 <br /><10 <br /><1,000 <br /><100 <br />DWI <br />05/19/11 <br /><10 <br /><10 <br /><10 <br /><100 <br />22 <br /><10 <br />--- <br />-- <br />DWI <br />09/22/11 1 <br />--- <br />--- <br />-- <br />--- <br />--- <br />--- <br />DWI <br />12/01/11 <br /><5.0 <br /><5.0 <br /><5.0 <br /><50 <br />15 <br /><5.0 <br />-- <br />- <br />DWI <br />03/15/12 <br /><25 <br /><25 <br /><25 <br /><250 <br /><25 <br /><25 <br />DWI <br />05/03/12 <br /><50 <br /><50 <br /><50 <br /><500 <br /><50 <br /><50 <br />--- <br />--- <br />DWI <br />08/24/12 <br /><100 <br /><100 <br /><100 <br /><1,000 <br /><100 <br /><100 <br />- <br />DWI <br />10/24/12 <br /><5.0 <br /><5.0 <br /><5.0 <br /><50 <br /><5.0 <br /><5.0 <br />DWI <br />02/01/13 <br /><100 <br /><100 <br /><100 <br /><1,000 <br /><100 <br /><100 <br />DWI <br />05/03/13 <br /><50 <br /><50 <br /><50 <br /><500 <br /><50 <br /><50 <br />- <br />DWI <br />08/22/13 <br /><12 <br /><12 <br /><12 <br /><120 <br />16 <br /><12 <br />- <br />- <br />DWI <br />12/18/13 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />- <br />DWI <br />03/20/14 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />DWI <br />06/12/14 m <br />--- <br />--• <br />--- <br />--- <br />--- <br />-- <br />DWI <br />08/01/14 m <br />- <br />- <br />DWI <br />10/28/14 m <br />- <br />--- <br />--- <br />DW1 <br />02/05/15 p <br />--- <br />--- <br />--•- <br />--- <br />•-• <br />--- <br />DW1 <br />02/25/15 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />--- <br />DW2 <br />02/23/09 <br /><2.0 <br /><2.0 <br /><2.0 <br /><40 <br /><2.0 <br /><2.0 <br /><200 <br />--- <br />DW2 <br />04/29/09 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br />0.11 <br /><0.50 <br /><50 <br /><100 <br />DW2 <br />07/14/09 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><50 <br />680 <br />DW2 <br />10/28/09 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br />0.092j <br /><0.50 <br /><50 <br /><100 <br />DW2 <br />01/25/10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br />0.09j <br /><0.50 <br /><50 <br /><100 <br />DW2 <br />04/07/10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br />-.. <br /><50 <br /><100 <br />DW2 <br />08/10/10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br /><50 <br /><100 <br />DW2 <br />10/06/10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br />--• <br />--- <br /><50 <br /><100 <br />DW2 <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 />DW2 <br />05/19/11 <br /><0.50 <br /><0.50 <br /><0.50 <br />30 <br />0.76 <br /><0.50 <br />--- <br />--- <br />DW2 <br />09/22/11 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />DW2 <br />12/01/11 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />DW2 <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 />DW2 <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 />DW2 <br />08/24/12 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br />--- <br />- <br />