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REV03753
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REV03753
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Entry Properties
Last modified
8/25/2016 1:01:41 AM
Creation date
11/21/2007 9:11:27 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981023
IBM Index Class Name
Revision
Doc Date
6/7/2005
Doc Name
Calculation of Reduction of Revegetation Cover in East Pit Area (Memo)
From
Tom Kaldenbach
To
File
Type & Sequence
SL5
Media Type
D
Archive
No
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MEMO <br />Date: 6/7/2005 ~ <br />From: Tom Kaldenbach-I~ <br />To: SL-5 file, Permit C-1981-023 <br />Re: Calculation of reduction of revegetation cover in East Pit area <br />Gully erosion occurred on the slopes of the reclaimed East Pit one week before the bond release <br />inspection. This erosion was too localized to significantly reduce transect data, based on the <br />following analysis. <br />2003 reveeetation data <br />Knowns: <br />3 of 17 transects cross gullies, transects aze 50 meters long, gully widths aze less <br />than 1 meter <br />Calculations: <br />Total 2003 transect length = 17 transects X 50 meters long = 850 meters <br />Total transect length where gullies removed cover = 3 gullies X gully width of 1 <br />meter = 3 meters <br />of total transect length where gullies removed cover = 3 meters / 850 meters = <br />0.4% <br />2004 reveeetation data <br />Knowns: <br />4 of 17 transects cross gullies, transects are 50 meters long, gully widths aze less <br />than 1 meter <br />Calculations: <br />Total 2004 transect length = 17 transects X 50 f~eClong = 850 meters <br />Total transect length where gullies removed cover = 4 gullies X gully width of 1 <br />meter = 4 meters <br />of total transect length where gullies removed cover = 4 meters / 850 meters = <br />0.5% <br />
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