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REP12275
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Last modified
8/24/2016 11:43:05 PM
Creation date
11/27/2007 12:52:01 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981028
IBM Index Class Name
Report
Doc Date
7/6/2005
Doc Name
2004 AHR Review Memo
From
Tom Kaldenbach
To
File
Annual Report Year
2004
Permit Index Doc Type
Hydrology Report
Media Type
D
Archive
No
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Table 1 -Calculations of seepage velocity and plume <br />length in Laramie sandstone and coal <br />Laramie <br />sandstone <br />and coal <br />Calculation of hydraulic gradient, dhldl <br />dh (vertical drop of flow path, ft) 5 <br />dl (horizontal length of flow path, ft) 950 <br />dh/dl (hydraulic gradient) 0.005 <br />Calculation of seeoaae velocity <br />Hydraulic conductivity along leachate flow path, K (assumed) 0.03 <br />Effective porosity of transmitting beds, p (assumed) 0.05 <br />Velocity in ft per day by Darcy equation = (K / p) X (dh I dl) 0.003 <br />Calculation of plume length <br />Plume length in 1 year (velocity in ft./day X 365 days) 1 <br />Plume length in 10 years (10 X 1 yr. Length) 12 <br />
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