My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2011-02-25_REVISION - C1981019
DRMS
>
Day Forward
>
Revision
>
Coal
>
C1981019
>
2011-02-25_REVISION - C1981019
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 4:31:14 PM
Creation date
2/25/2011 1:29:03 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
REVISION
Doc Date
2/25/2011
Doc Name
Preliminary Adequacy Review Letter
From
DRMS
To
Colowyo Coal Company
Type & Sequence
PR3
Email Name
JHB
DIH
KAG
RDZ
TAK
MLT
SGR
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.
/
18
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
Colowyo, C1981-019, PR3 adequacy 14 February 25, 2011 <br />o On Map 41 B, some watershed boundaries are stream channels (Jubb Creek, Collom <br />Gulch). It is unclear why watershed boundaries are shown this way. <br />o Some ditches are on ridges (e.g., Porcupine Draw and Cougar Draw). <br />o Area A3 extends over a ridge. <br />• Detailed mapping of culvert locations is limited or non-existent. <br />Please address these deficiencies. <br />4. The floating siphon proposed in the sediment control plan is not included in the <br />drawings and may not be the best design at this site due to climate. Please provide <br />additional text narrative and drawings, as necessary, to describe the operation of the <br />siphon, including during winter conditions when the pond surface is frozen. <br />Rule 4.05.7 Discharge Structures <br />The application is adequate with regard to this Rule. <br />Rule 4.05.12 Protection of Ground Water Recharge Capacity <br />The application is adequate with regard to this Rule. <br />Rule 4.05.13 Surface Water and Ground Water Monitoring <br />Map 1013 does not show proper annotation for the ground water monitoring wells. Please refer <br />to the legend and correct the ground water well annotation for the wells included in the water <br />monitoring plan. <br />2. To monitor and measure the development of a spoil aquifer, which the Division believes is <br />likely in the Collom Lite pit, please locate a future spoil water monitoring well on the map to <br />be added post-reclamation. Brief permit text narrative committing to the installation of this <br />well is also required. <br />3. In the groundwater lab parameter table in Section 4.05.13, please change the analysis for iron <br />from "total" to "dissolved". Although DRMS Rule 2.04.7(1) specifies analysis for "total" iron <br />in baseline data collection, the standards for iron in the Basic Standards for Groundwater <br />(Colorado Water Quality Control Commission Rule 41) are for the "dissolved" concentration. <br />Rule 4.06 Topsoil <br />1. In the Topsoil handling section of the application, Rule 4, page 20, CCC makes the statement, <br />"Topsoil stockpiles will not be moved when required for redistribution on disturbed areas prior
The URL can be used to link to this page
Your browser does not support the video tag.