2012 Groundwater Monitoring
and Inspection Report
Gnome-Coach, New Mexico, Site
March 2013
Approved for public release; further dissemination unlimited
LMS/GNO/S09337
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LMS/GNO/S09337
2012 Groundwater Monitoring and Inspection Report
Gnome-Coach, New Mexico, Site
March 2013
Approved for public release: further dissemination unlimited
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U.S. Department of Energy 2012 Groundwater Monitoring and Inspection Report Gnome-Coach, New Mexico
March 2013 Doc. No. S09337
Page i
Contents
Abbreviations .................................................................................................................................. ii
Executive Summary ....................................................................................................................... iii
1.0 Introduction ............................................................................................................................1
2.0 Site Location and Background ...............................................................................................1
2.1 Summary of Reclamation and Remediation Activities ................................................4
3.0 Geology and Hydrology .........................................................................................................5
4.0 Groundwater Monitoring and Inspection Results ..................................................................6
4.1 Site Inspection Results ..................................................................................................7
4.2 Hydraulic Head Monitoring and Results ......................................................................7
4.3 Groundwater Sampling and Results ...........................................................................10
4.4 Seismic Data Acquisition and Results ........................................................................11
5.0 Conclusions ..........................................................................................................................13
6.0 References ............................................................................................................................13
Figures
Figure 1. Site Location Map, Gnome-Coach, New Mexico, Site ................................................... 2
Figure 2. Site Features, Gnome-Coach, New Mexico, Site ............................................................ 3
Figure 3. Stratigraphy near Gnome Site (provided by Sandia National Laboratories) ................... 6
Figure 4. Hydrograph Showing Water Elevations in Wells USGS-1, USGS-4, and USGS-8 ....... 9
Figure 5. Hydrograph Showing Water Elevations in Wells DD-1 and LRL-7 ............................... 9
Figure 6. Seismic Survey Features, Gnome-Coach, New Mexico, Site ....................................... 12
Tables
Table 1. Gnome-Coach Site Water Levels ..................................................................................... 8
Table 2. Analytical Results 2008 through 2012............................................................................ 11
Appendixes
Appendix A Photos of the Well Box
Appendix B Well Concentration Plots
Appendix C Seismic Survey Report