2010-38 PROHIBITING THE USE OF GROUNDWATER AS A POTABLE WATER SUPPLY

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Table 1 BTEX Groundwater Analytical Results Speedway SuperAmerica#5205 Decatur, IL TOC I GW I GW Sample Reading Elev Elev Depth LNAPL LNAPL COC Sample Benzene Toluene Ethylbenzene Total Xylenes Location I Date iTimel(feet) feet feet Depth Thick Sample ID Date Time (ug/L (ug/L (ug/L u /L Action Levels-Off Site onitoring Well 25 2500 1000 10000 MW-20 08/27/2008 11:25 90 83.61 6.39 1 MW-20 08/27/2008 11:25 <2.000 <2.000 <2.000 <2.000 08/13/2009 13:11 90 83.45 6.55 MW-20 08/13/2009 13:11 <2.000 <2.000 <2.000 <2.000 MW-21 MW-21 12/04/2001 00:00 <1.000 <1.000 1.400 3.600 MW-21 07/31/2003 00:00 <1.000 <1.000 <1.000 <1.000 08/27/2008 10:50 90 86.5 3.5 MW-21 08/27/2008 10:50 <2.000 <2.000 <2.000 <2.000 08/13/2009 13:33 90 85.92 4.08 MW-21 08/13/2009 13:33 <2.000 <2.000 <2.000 <2.000 MW-22 MW-22 12/04/2001 00:00 <1.000 <1.000 1.200 1.500 MW-22 07/31/2003 00:00 <1.000 <1.000 <1.000 <1.000 MW-22 06/03/2004 12:45 <1.000 <1.000 <1.000 <1.000 11/09/2005 10:20 95.41 91.13 4.28 MW-22 11/09/2005 10:20 <1.000 <1.000 <1.000 <1.000 06/29/2006 00:00 95.41 90.67 4.74 12/28/2006 14:07 95.41 91.39 4.02 MW-22 12/28/2006 14:07 <2.000 <2.000 <2.000 <4.000 08/27/2008 10:55 95.41 90.43 4.98 MW-22 08/27/2008 10:55 <2.000 <2.000 <2.000 <2.000 08/13/2009 13:35 95.41 90.43 4.98 MW-22 08/13/2009 13:35 <2.000 <2.000 <2.000 <2.000 MW-23 MW-23 06/06/2002 00:00 <1.000 <1.000 <1.000 <1.000 MW-23 07/31/2003 00:00 <1.000 <1.000 <1.000 <1.000 MW-23 06/03/2004 12:30 <1.000 <1.000 <1.000 <1.000 11/09/2005 10:15 95.35 90.67 4.68 MW-23 11/09/2005 10:15 <1.000 <1.000 <1.000 <1.000 06/29/2006 00:00 95.35 90.39 4.96 MW-24 MM24 06/06/2002 00:00 <1.000 <1.000 <1.000 <1.000 MW 24 07/31/2003 00:00 <1.000 <1.000 <1.000 <1.000 MW-24 06/03/2004 11:55 <1.000 <1.000 <1.000 <1.000 11/09/2005 1 10:10 92.461 89.271 3.19 1 1 MW-24 11/09/2005 10:10 <1.000 <1.000 <1.000 <1.000 06/29/2006 00:00 1 92.461 88.961 3.5 Action Levels-Field Blank-Sample collected in the Field(liquid) 25 2500 1000 10000 FIELD BLANK FIELD BLANK 11/09/2005 13:40 <1.000 <1.000 <1.000 <1.000 FIELD BLANK 06/29/2006 11:45 <1.000 <1.000 <1.000 <1.000 FIELD BLANK 12/28/2006 14:45 1 <2.000 <2.000 <2.000 <4.000 FIELD BLANK 06/17/2008 11:45 <2.000 <2.000 <2.000 <2.000 FIELD BLANK 08/27/2008 12:00 <2.000 <2.000 <2.000 <2.000 FIELD BLANK 08/13/2009 13:49 1 <2.000 <2.000 <2.000 <2.000 Page 6 of 6