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Table 4: Water Level Summary <br /> 2013 Annual Report <br /> Former Nestle USA, Inc. Facility, Ripon, CA <br /> Measured Depth to Water Calculated Groundwater Elevation Change in Groundwater Elevation <br /> Top of Casing (DTW,feet below measuring point) (feet above mean sea level) (feet above mean sea level) <br /> Well ID (TOC) Oct 2012 Jan 2013 Apr 2013 Jul 2013 <br /> Elevation Jan 7,2013 Apr 8,2013 Jul 8,2013 Oct 7,2013 Jan 7,2013 Apr 8,2013 Jul 8,2013 Oct 7,2013 to to to to <br /> Jan 2013 A r 2013 Jul 2013 Oct 2013 <br /> TH-7 67.38 25.57 24.84 24.59 26.73 41.81 42.54 42.79 40.65 NA 0.73 0.25 -2.14 <br /> TH-8 67.60 25.78 25.25 25.16 27.09 41.82 42.35 42.44 40.51 NA 0.53 0.09 -1.93 <br /> TH-9 58.49 18.75 18.79 18.59 19.88 39.74 39.70 39.90 38.61 NA -0.04 0.20 -1.29 <br /> TH-10 58.86 17.79 17.80 17.60 18.92 41.07 41.06 41.26 39.94 NA -0.01 0.20 -1.32 <br /> TH-11 1 66.45 1 25.23 1 25.13 1 25.26 1 26.83 1 41.22 1 41.32 1 41.19 1 39.62 1 NA 1 0.10 1 -0.13 1 -1.57 <br /> NM: Depth to water not measured. <br /> NA: Not available or not aplicable. <br /> *The City of Ripon's consultant provided ECM with the data for W-1 to W-9 for 2013. <br /> **PW wells are not gauged because they have no sounding port. <br /> a=A positive number indicates the well was not pumping in the current quarter when gauged,or was pumping at a lower rate than previous quarter when gauged. <br /> A negative number indicates well was not pumping in previous quarter or is pumping in the current quarter at a higher rate when gauged. <br /> Page 6 of 6 <br />