2002-02-20_REVISION - M1999021

• Permit No: M1999021
• IBM Index Class Name: Revision
• Doc Date: 2/20/2002
• Doc Name: Groundwater Conditions
• From: Aggregate Industries-WCR Inc.
• To: DMG
• Type & Sequence: TR3
• Media Type: D
• Archive: No

List of Figures
Figure 1 Location Map of the Stegner Farm Gravel Mine and Surrounding Area
Figure 2 Total Annual Precipitation, Station 53005, Fort Collins, Colorado 1995-2001
Figure 3 Number of 90-Degree Days, Station 53005, Fort Collins, Colorado, 1995-2001
Figure 4 Reference Evapotranspiration, CoAgMet Station FTC03 Near Fort Collins,
Colorado, 1995-2001
Figure 5 Pre-Slurry Wall Monitoring Well Hydrographs, Stegner Farm Gravel Mine
Area
Figure 6 Pre-Slurry Wall Potentiometric Map of the Stegner Farm Gravel Mine Area,
April 2000
Figure 7 Post-Slurry Wall Monitoring Well Hydrographs, Stegner Farm Gravel Mine
Area
Figure 8 Post-Slurry Wall Potentiometric Map of the Stegner Farm Gravel Mine Area
April 2001
Figure 9 Monitoring Well Hydrographs, LaFarge Home Office Pit Wells
Figure 10 Change in Groundwater Level in LaFarge Wells During Irrigation Season
Figure 11 Pre-Slurry Wall Potentiometric Map of the Stegner Farm Gravel Mine Area
August 1999
Figure 22 Post-Slurry Wall Potentiometric Map of the Stegner Farm Gravel Mine Area
August 2001
Figure 13 Change in Groundwater Level in Area of Stegner Farm Gravel Mine
Between August 1999 and August 2001
Figure 14 Pre-Slurry Wall Potentiometric Map of the Stegner Farm Gravel Mine Area
December 1999
Figure 15 Post-Slurry Wall Potentiometric Map ofthe Stegner Farm Gravel Mine Area
December 2001
Figure 16 Change in Groundwater Level in Area of Stegner Farm Gravel Mine
Between December 1999 and December 2001
Figure 17 Estimate of Martin Pond Water Depth Using L-2 Hydrograph
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