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HYDRO21186
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HYDRO21186
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Entry Properties
Last modified
8/24/2016 8:42:48 PM
Creation date
11/20/2007 2:04:22 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980006
IBM Index Class Name
Hydrology
Doc Date
9/19/2000
Doc Name
BOREHOLE RECLAMATION KERR COAL CO
From
MONTGOMERY WATSON
To
BLM
Permit Index Doc Type
CORRESPONDENCE
Media Type
D
Archive
No
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L vda M. Grins - BLM <br />/~ Bord~a(e Redanutiar at ken Cml <br />1\ S~~e>Lcv~ l S, 1000 <br />Pate Z <br />The GPS unit malfunctioned during part of the field reconnaissance effort, therefore, some of the <br />borehole/well locations were estimated using nearby surface features as a reference. The field <br />reconnaissance effort resulted in the addition of several boreholes/wells not previously identified <br />to the borehole/well inventory. Due, however, to the large number of wells and some uncertainty <br />regazding exact locations, the possibilityexisu that duplicate well locations are identified. The total <br />number of boreholes/welk is, therefore, still considered an estimate. Table 1, Well Summary, <br />presents a listing of all identified boreholes/welts and relevant information including well number, <br />general location, ownership, casing size and material, total depth and depth to water, field <br />conditions and potential beneficial use(s). The two numbers given for the majority of the <br />boreholes/wells are based on information from Kerr exploration files and random numbers <br />assigned by the BLM during their site reconnaissance. The wells have been generally classified as <br />either bedrtxk or alluvial Welk. The bedrock well classification includes those boreholes/wells <br />most likely drilled into or completed in bedrock, coal, or unconsolidated overburden materials. <br />The alluvial well classification includes those boreholes/wells most likely drilled into or completed <br />ut shallow alluvial collegial sediments (ie.; located in or near a surface water drainage and drilled <br />to a depth less than 20 feet). Open surface conditions and total depth were considered in <br />classifying the boreholes/welk. Within the two general classifications, the following s,rrnrr,an~rs <br />the number and characteristics of inventoried boreholes/wells: <br />Bedrock Wells <br />• There are approximately 37 bedrock wells <br />• 25 are likely owned by Kerr, 4 by the USGS, and ownership of 8 wells could not be <br />determined <br />• For those Welk where depth could be determined, total depth ranged from 100 to 440 feet <br />below ground surface (bgs) <br />• The water levek measured or on file (past monitoring) range from less than 10 feet to 80 <br />feet <br />• Most casings are 2-inch inner diameter (ID) PVC casing <br />• 6 wells are 4-inch ID or greater <br />• Approximately half of the wells are capped, fenced, or both <br />Alluvial Wells <br />• There are approximately 33 alluvial wells, including 3 we1Ls in the 720 Pit <br />• 18 are liltelyowned by Kerr and the rem~ini~g 15 bythe USGS <br />• For those wells whew depth could be detemwted, total depth ranged from 9 to 15 feet <br />bgs <br />• Water levels measured or on file (past monitoring) range from less than 3 feet to 8 feet <br />
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