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2016-03-10_REVISION - C1981019
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2016-03-10_REVISION - C1981019
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Entry Properties
Last modified
8/24/2016 6:19:59 PM
Creation date
3/11/2016 7:41:14 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
Revision
Doc Date
3/10/2016
Doc Name
2nd Adequacy Review Memo
From
Leigh Simmons
To
Rob Zuber
Type & Sequence
PR4
Email Name
LDS
JRS
RDZ
Media Type
D
Archive
No
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Rob Zuber <br />Page 10 <br />March 10, 2016 <br />update the PAP with the permits secured. Text has been inserted into Volume 15, Rule <br />2 indicating this also." The text discussing CCC's plan has been added to Page 111. <br />This item will be resolved with the following stipulation: <br />Stipulation 19: DEWATERING WELL PERMITS MUST BE IN PLACE, AND THE PERMIT <br />APPLICATION PACKET UPDATED ACCORDINGLY, BEFORE ANY DISTURBANCE <br />ASSOCIATED WITH THE COLLOM PIT BOX CUT IS ALLOWED TO OCCUR. <br />b. Please describe how the water will be used or discharged. (i.e. Where will it be pumped <br />to? What are the anticipated impacts to the receiving drainage?) <br />CCC responded "Language has been inserted into Volume 15, Rule 2 which indicates <br />how Colowyo will utilize and/or discharge the dewatering water. Anticipated impacts <br />to receiving streams have been included in Volume 15, Rule 2." CCC have stated, on <br />Page 112, that they will discharge to Collom Gulch and the West Fork of Jubb Creek, <br />with an approved CDPHE permit. This item is resolved with the following stipulation: <br />Stipulation 20: A DISCHARGE PERMIT FOR WATER PUMPED FROM DEWATERING <br />WELLS MUST BE IN PLACE, AND THE PERMIT APPLICATION PACKET UPDATED <br />ACCORDINGLY, BEFORE ANY DISTURBANCE ASSOCIATED WITH THE COLLOM PIT BOX <br />CUT IS ALLOWED TO OCCUR. <br />c. Please propose monitoring points that will allow the drawdown cone adjacent to the pit <br />to be characterized during the dewatering and recovery phases of the operation, and <br />predictions made in the PHC to be verified. <br />CCC have described a plan in principle, on Page 111, which utilizes vibrating wire <br />piezometers placed in monitoring holes outside the perimeter dewatering wells which <br />will allow characterization of the drawdown cone. These points should be added to <br />the monitoring plan as and when they are constructed. <br />The response is sufficient. <br />d. This is related to item 1 in the initial adequacy review letter. <br />The response is sufficient. <br />Rule 2.06.8 — Alluvial Valley Floors <br />82. Section 2.06.8 of the PAP discusses operations on areas, or adjacent to areas, including alluvial <br />valley floors. The text describes a field investigation and technical evaluation of all drainages <br />
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