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TABLE 1 <br /> Groundwater Monitoring Data <br /> 8960 W Walnut Grove Road <br /> Thornton, CA <br /> (in feet} <br /> Date Well ID Wellhead Elevation'' Depth to Water Groundwater Elevation <br /> 5/21/2001 MW1 800 896 -096 <br /> MW2 726 799 -073 <br /> MW3 794 900 -106 <br /> MW4 666 770 -104 <br /> 9/7/2001 MWl 800 856 -056 <br /> MW2 726 762 -036 <br /> MW3 794 860 -066 <br /> MW4 666 725 -059 <br /> 12/13/2001 MW1 800 949 -149 <br /> MW2 726 877 -151 <br /> MW3 794 948 -154 <br /> MW4 666 8 16 -150 <br /> 3/14/2002 MWl 1049 764 285 <br /> MW2 978 691 287 <br /> MW3 1045 758 287 <br /> MW4 9 15 626 289 <br /> 6/19/2002 MWl 1049 834 2 15 <br /> MW2 978 735 243 <br /> MW3 1045 839 206 <br /> MW4 9 15 706 209 <br /> 9/4/2002 MW1 1049 793 256 <br /> MW2 978 705 273 <br /> MW3 1045 798 247 <br /> MW4 9 15 663 252 <br /> 11/4/2002 MW 1 1049 867 182 <br /> MW2 978 787 191 <br /> MW3 1045 873 172 <br /> MW4 9 15 739 176 <br /> MW5 863 669 194 <br /> MW6 776 6 15 161 <br /> MW7 901 761 140 <br /> 12/5/2002 MW1 1049 974 075 <br /> MW2 978 901 077 <br /> MW3 1045 973 072 <br /> MW4 9 15 841 074 <br /> MW5 863 783 080 <br /> MW6 776 712 064 <br /> MW7 901 849 052 <br /> Notes: <br /> Wellheads surveyed relative to arbitrary datum based on USGS Thornton 7 5 minute topographic quadrangle <br /> 2Wellheads resurveyed relative to NAVD88,Morrow Surveying,February 2002 and November 2002 <br />