My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2010-04-30_REVISION - M1999058
DRMS
>
Day Forward
>
Revision
>
Minerals
>
M1999058
>
2010-04-30_REVISION - M1999058
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
6/15/2021 2:22:42 PM
Creation date
4/30/2010 1:21:14 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1999058
IBM Index Class Name
REVISION
Doc Date
4/30/2010
Doc Name
New amendment application (AM-01)
From
Colorado Stone Quarries, Inc.
To
DRMS
Type & Sequence
AM1
Email Name
GRM
SSS
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.
/
105
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
All of the water that leaves the mine comes out in the 50 mesh size mud from the marble cutting or. the <br />drainage pipe extending from the south portal. This material is left to dry near the South Portal as shown <br />on Map C-2. The water from the dewatering is collected in a sump and pumped to a 6" pipe located on <br />the surface leading to Yule Creek, where the discharge is sampled as part of the NPDES permit. This <br />system will be maintained for the post 2010 operation. <br />As described in the Sediment Control Plan, 5 new sumps will be created to provide water detention and <br />each of these sumps will be a new outfall in the revised NPDES permit. Therefore, there will be 6 total <br />outfalls in this permit. <br />Since all the water used in the operation has entered the mine from groundwater cracks, no surface water <br />consumptive use exists. All water placed with the cutting mud on the mud drying area is either <br />evaporated or placed in Yule Creek from the pumping operation. <br />3. Hydrologic Impacts and Sediment Control Plan <br />The marble mined at this quarry is basically calcium carbonate, which is a basic material, and will in no <br />way produce acid runoff. The marble could actually improve the quality of natural runoff. The biggest <br />potential negative impact from the operation is the disposal of fine material in the dump areas, which <br />could make their way down to the drainage below and result in higher suspended sediment loads in a <br />very clear stream (Yule Creek). <br />For this reason, the sediment control system has been completely redesigned for the 2010 Amendment to <br />address the fines issue and detention of runoff for all mine site disturbances. Since there is no room on <br />the site for a large sediment detention structure, the Yule Quarry mine area has been divided into five <br />drainage basins that will each direct run-off towards a sump. The calculations for the total run-off in <br />each basin can be seen below, and the basins themselves can be seen on Map C-2. Additionally, several <br />collection ditches will have to be installed in order to gather and direct run-off to the sediment sumps. <br />The designs for these ditches are found below in this section as well. <br />Yule Quarry April 10 17
The URL can be used to link to this page
Your browser does not support the video tag.