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PERMFILE135052
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PERMFILE135052
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Entry Properties
Last modified
8/24/2016 10:35:47 PM
Creation date
11/26/2007 3:02:37 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Permit File
Doc Date
6/13/2002
Doc Name
2001 Annual Hydrologic Report
Section_Exhibit Name
Appendix W 2001 Report Section 2.5
Media Type
D
Archive
No
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show an overall gradual decline over the last few years in well GLUX-i likely due to less <br />precipitation the last four years. <br />Figure A-7 presents water levels for wells GF-1, GF-7 and P-8. These wells are <br />completed in the 20 Mile, HI backfill and 3rd White Sandstone aquifers, respectively. Well <br />GF-1 was a flowing well but water levels have declined over the last four years to below <br />the top of the casing. Water levels in this deep aquifer would not be expected to quickly <br />respond to either a low or high precipitation event. As with GF-S, well GF-7 (both <br />completed in the HI backfill) gradually declined in water level, likely due to the lower <br />precipitation. The larger storage value in the unwnfined backfill aquifer may dampen the <br />effects of dry and wet years. The recovery from the A pit mining in this area may be <br />complete. The water levels in well P-8 were fairly steady in 2001. <br />Water levels fur wells GF-2 and GF-4 are presented in Figure A-8. Water levels <br />in well GF-2 have been quite stable for a number of years. The U aquifer lies beneath the <br />coal horizons. A large rise in water level in well GF-4 was observed in the last half of 1999 <br />after the repair of the casing on September 29, 1999. Water levels declined in 2001 in <br />well GF-4 to a steady level. Mining occurred south of well GF-4 in the early 1980's and is <br />expected to limit water-level changes in the HI aquifer near well GF-4. Water levels in the <br />upgradient unconfined backfill aquifer do not fluctuate as much as the confined HI aquifer. <br />It is also possible that the backfili spring in Johnson Gulch may be limiting the head in the <br />baclfill aquifer. <br />Figure A-9 presents water levels for wells GF-3 (KLM aquifer) and Coy (alluvium). <br />The increases in water levels in well GF-3, due to spring recharge, seem to occur later in <br />the year showing a few months lag. Water levels at Coy were steady in 2001 after a <br />u <br />2-6 <br />
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