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TABLE 4 <br />HISTORICAL GROUNDWATER ELEVATION DATA <br />Waterloo Food Fuel <br />3032 East Waterloo Road <br />Stockton, California <br />Monitoring <br />Well <br />Date Reference <br />Elevation* <br />(feet) <br />Depth to <br />Groundwater <br />(feet) <br />Groundwater <br />Elevation <br />(feet) <br />MW-7A*** 10/31/2001 24.94 58.77 -33.83 <br />2/20/2002 25.13 49.00 -24.06 <br />3/5/2002 53.85 -28.91 <br />9/17/2002 60.80 -35.86 <br />1/14/2003 59.55 -34.61 <br />5/27/2003 57.55 -33.03 <br />9/29/2003 61.00 -36.06 <br />3/23/2004 56.40 -31.46 <br />6/8/2004 60.01 -35.07 <br />9/16/2004 62.90 -37.96 <br />12/14/2004 63.91 -38.97 <br />3/12/2005 53.90 -28.96 <br />6/5/2005 54.28 -29.34 <br />11/10/2005 58.49 -33.55 <br />3/16/2006 45.56 -20.62 <br />6/6/2006 41.48 -16.54 <br />9/22/2006 50.88 -25.94 <br />12/12/2006 46.94 -22.00 <br />3/20/2007 47.95 -23.01 <br />6/22/2007 51.27 -26.33 <br />9/27/2007 54.20 -29.26 <br />2/12/2008 50.52 -25.58 <br />7/14/2008 56.38 -31.25 <br />10/16/2008 60.10 -34.97 <br />1/15/2009 59.73 -34.60 <br />9/18/2009 62.70 -37.76 <br />3/5/2010 57.74 -32.61 <br />9/9/2010 56.35 -31.41 <br />3/20/2011 45.45 -20.32 <br />9/1/2011 47.00 -21.87 <br />3/1/2012 48.65 -23.52 <br />12/17/2012 49.35 -24.41 <br />9/16/2013 55.28 -30.15 <br />4/24/2014 53.44 -28.31 <br />3/9/2015 58.83 -33.70 <br />9/15/2016 62.65 -37.52 <br />3/7/2017 36.05 -10.92 <br />2/5/2018 38.13 -13.19 <br />9/19/2018 39.50 -14.37 <br />3/26/2020 - - <br />9/15/2020 38.02 -12.89 <br />3/23 & 3/24/2021 38.38 -13.25 <br />9/13 & 9/14/2021 - - <br />APEX ENVIROTECH, INC. <br />SECOND SEMI-ANNUAL 2021 <br />Page 7 of 23 <br /> WFF02.001