My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2008-09-29_REVISION - C1981019 (3)
DRMS
>
Day Forward
>
Revision
>
Coal
>
C1981019
>
2008-09-29_REVISION - C1981019 (3)
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 3:36:43 PM
Creation date
9/29/2008 1:57:10 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
REVISION
Doc Date
9/29/2008
Doc Name
Preliminary Adequacy Review
From
DRMS
To
Colowyo Coal Company
Type & Sequence
TR74
Email Name
JRS
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
5
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
Construction Report <br />3) The last sentence on Page 1 should refer to Attachment 11A2" rather than <br />"2". Please correct this error. <br />4) The seventh paragraph on Page 2 should refer to Attachment "Al" rather <br />than "1". Please correct this error. <br />5) The second paragraph on Page 3 should refer to Attachment "A2 rather than <br />"2". Please correct this error. <br />6) According to the first paragraph on Page 4, the approved 24-inch flume was <br />replaced by a 9-inch version. <br />Please provide the Division with design calculations which illustrate that a 9- <br />inch flume is sufficient to carry the flow expected from dewatering the pond <br />through the 18-inch CMP that has been installed. <br />7) Attachment A2-1 reports the Plasticity Index for Proctor No. 1 to be 19%. This <br />number does not agree with that plotted on Attachment A 1-1. <br />Please clarify which P.I. value is correct for 1P, and change as necessary. <br />8) In Attachment A3, pages -2, -4, -6, and -8, the Maximum Dry Density and <br />Optimum Moisture Content values listed in the Proctor Data table appear to have <br />been transposed between Samples 3P and 4P. <br />Please compare the values from the Proctor Data table with the values <br />reported in Attachment A2-3 and A2-4, and correct any items which are in <br />error. <br />9) In Attachment A3-2, the water content reported for Test Nos. 3 and 4 exceeds the <br />Optimum Moisture Content determined for Proctor No. 2 by more than 2%. <br />These tests failed to meet the criteria of Fill Placement and Compaction as <br />described in the approved design ("within 2 percent of the Optimum Moisture <br />Content"). <br />Please evaluate the water content test results, as reported, and provide the <br />Division with justification for the apparent acceptance of these results. <br />10) In Attachment A3-4, Test Nos. 5A and 10 were evaluated by referring to Proctor <br />No. 3. <br />In light of Item 8), above, please verify which Proctor curve should actually <br />be used for comparison, and adjust any values accordingly.
The URL can be used to link to this page
Your browser does not support the video tag.