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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-6B 10/31/2001 25.36 60.99 -35.63 <br />3/5/2002 25.4 54.40 -29.04 <br />9/17/2002 62.16 -36.76 <br />1/14/2002 59.13 -33.77 <br />5/27/2003 58.40 -33.04 <br />9/29/2003 62.85 -37.49 <br />3/23/2004 57.30 -31.94 <br />6/8/2004 60.84 -35.48 <br />9/16/2004 66.20 -40.84 <br />12/14/2004 64.47 -39.11 <br />3/12/2005 55.23 -29.87 <br />6/5/2005 55.08 -29.72 <br />11/10/2005 56.14 -30.78 <br />3/16/2006 46.36 -21.00 <br />6/6/2006 42.71 -17.35 <br />9/22/2006 50.67 -25.31 <br />12/12/2006 47.34 -21.98 <br />3/20/2007 48.81 -23.45 <br />6/22/2007 50.72 -25.36 <br />9/27/2007 54.75 -29.39 <br />2/12/2008 50.87 -25.51 <br />7/14/2008 56.80 -31.40 <br />10/16/2008 60.91 -35.51 <br />1/15/2009 61.93 -36.53 <br />9/18/2009 65.47 -40.07 <br />3/5/2010 57.74 -32.34 <br />9/9/2010 56.42 -31.02 <br />3/20/2011 46.20 -20.80 <br />9/1/2011 48.05 -22.65 <br />3/1/2012 49.18 -23.78 <br />12/17/2012 50.00 -24.60 <br />9/16/2013 55.50 -30.10 <br />4/24/2014 54.00 -28.60 <br />3/9/2015 59.89 -34.49 <br />8/18/2016 65.50 -40.10 <br />9/15/2016 66.70 -41.30 <br />3f7/2017 37.50 -12.10 <br />2/5/2018 39.11 -13.75 <br />9/19/2018 40.13 -14.73 <br />3/26/2020 - - <br />9/15/2020 - - <br />3/23 & 3/24/2021 38.52 -13.12 <br />9/13 & 9/14/2021 45.66 -20.26 <br />APEX ENVIROTECH, INC. <br />SECOND SEMI-ANNUAL 2021 <br />Page 11 of 23 <br /> WFF02.001