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City of Lathrop - MWM-19 <br />Groundwater Elevation <br />co w 20 co C es <br />g 15 <br />to > o .12 10 co gi- <br />Tu. a, 0 t-- > <br />c < e Z <br />1 <br />I r, <br />7'60 -5 <br />LOCC) r, N. CO CD 0 0 ..- (N CO co ci- a, CD CD I,- '0 0 9 o 9 0 9 9 9 C c e <br />D. Ct rj i ,L C0 Ct <br />.4, 0 0 <br /> <br />0 ▪ , < o -, < , 0 -, < , o <br />tp Date <br />MWM-19 <br />NGVD 29 NAVD 88 <br />MP 11.66 14 05 <br />Groundwater Groundwater <br />Date Sampled DTW (ft) Elevation Elevation <br />(ft, NGVD 29) (ft, NAVD 88) <br />5/26/2005 9.05 2.61 5.00 <br />6/28/2005 7.39 4.27 6.66 <br />10/12/2005 7.61 4.05 6.44 <br />1/31/2006 8.07 3.59 5.98 <br />4/25/2006 6.42 5.24 7.63 <br />7/19/2006 9.07 2.59 4.98 <br />10/13/2006 11.23 0.43 2.82 <br />1/23/2007 10.80 0.86 3.25 <br />4/24/2007 10.18 1.48 3.87 <br />7/24/2007 10.63 1.03 3.42 <br />10/30/2007 11.03 0.63 3.02 <br />1/24/2008 10.09 1.57 3.96 <br />4/15/2008 9.15 2.51 4.90 <br />8/19/2008 9.93 1.73 4.12 <br />11/20/2008 10.14 1.52 3.91 <br />2/11/2009 9.68 1.98 4.37 <br />4/13/2009 9.22 2.44 4.83 <br />7/30/2009 10.07 1.59 3.98 <br />10/21/2009 10.39 1.27 3.66 <br />1/26/2010 9.71 1.95 4.34 <br />5/6/2010 8.86 2.80 5.19 <br />8/24/2010 9.40 2.26 4.65 <br />10/28/2010 9.59 2.07 4.46 <br />1/27/2011 8.25 3.41 5.80 <br />4/26/2011 7.58 4.08 6.47 <br />8/17/2011 8.62 3.04 5.43 <br />10/26/2011 8.85 2.81 5.20 <br />1/25/2012 7.20 4.46 6.85 <br />5/3/2012 8.40 3.26 5.65 <br />7/27/2012 9.59 2.07 4.46 <br />10/25/2012 9.95 1.71 4.10 <br />2/1/2013 8.41 3.25 5.64 <br />5/1/2013 8.75 2.91 5.30 <br />8/2/2013 9.21 2.45 4.84 <br />11/21/2013 9.71 1.95 4.34 <br />MWM-19 <br />NGVD 29 NAVD 88 <br />MP 11.66 14.05 <br />D ate Groundwater Groundwater <br />Sampled <br />, <br />DTW (ft) Elevation <br />(ft, NGVD 29) <br />Elevation <br />(ft, NAVD 88) <br />2/5/2014 9.78 1.88 4.27 <br />4/24/2014 9.41 2.25 4.64 <br />8/7/2014 10.16 1.50 3.89 <br />11/3/2014 10.45 1.21 3.60 <br />1/29/2015 9.05 2.61 5.00 <br />10/22/2015 10.68 0.98 3.37 <br />10/27/2015 10.70 0.96 3.35 <br />4/22/2016 9.80 1.86 4.25 <br />11/1/2016 9.62 2.04 4.43 <br />12/9/2016 10.20 1.46 3.85 <br />5/5/2017 7.03 4.63 7.02 <br />MP elevation surveyed by MacKay & Somps, July 2005. Surveyed elevation referenced to NGVD 29 and <br />converted to NAVD 88 by adding 2.39 it. Datum conversion factor determined from National Geodetic Survey Vertcon <br />website and is an average for the area. (www.ngs.noaa.gov/TOOLSNertcon/vertcon.html)