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Appendix B- Historical Water Levels City of Lathrop <br /> Consolidated Treatment Facility <br /> Monitoring and Reporting Program R5-2016-0028-03 Rev 3 <br /> City of Lathrop- North of CLSP NMW-4 <br /> Groundwater Elevation <br /> 00 20 <br /> 00 <br /> o z 15 <br /> �a a, <br /> ai ai 10 <br /> W � <br /> S <br /> o c <br /> 3 � <br /> v <br /> 3 E 0 <br /> o c <br /> c7 � <br /> +� <br /> -5 <br /> G/ ul lD r� oo Ql O rl N M u'1 l4 r� oo Ol O rl N m � u1 1.0 r� oo Ol O rl N m � u'1 <br /> GJ 01 01 01 T T O O O O O O O O O O 1- 1- 1- 1- 1- 1- 1- 1- 1- 1- N N N N N N <br /> co co co co co co co co co co co co ro ro ro ro ro ro ro ra ca ca ca ca co co co ca ca ra ra <br /> Date <br /> NMW-4 <br /> Measuring Point NGVD 29 NAVD 88 <br /> MP 15.20 17.59 <br /> Groundwater Groundwater <br /> Date Sampled DTW(ft) Elevation Elevation <br /> ft,NGVD 29 ft,NAVD 88 <br /> 7/17/2005 11.70 3.50 5.89 <br /> 7/19/2006 10.20 5.00 7.39 <br /> Abbreviations: <br /> CLSP=Central Lathrop Specific Plan <br /> DTW=depth to water <br /> ft=feet <br /> MP=measuring point <br /> NAVD 88=North American Vertical Datum of 1988 <br /> NGVD 29= National Geodetic Vertical Datum of 1929 <br /> Notes: <br /> (a) MP elevation reported by ENGEO, Inc.,October 2005. <br /> (b) Reported elevations referenced to NGVD 29 and converted to NAVD 88 by adding 2.39 ft. Datum conversion factor determined <br /> from National Geodetic Survey Vertcon website and is an average for the area. (www.ngs.noaa.gov/TOOLS/Vertcon/vertcon.html) <br /> EKI Environment &Water, Inc. <br /> July 2023 Page 10 of 145 EKI B90088.03 <br />