My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
BOARD02105
CWCB
>
Board Meetings
>
Backfile
>
2001-3000
>
BOARD02105
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/16/2009 3:11:59 PM
Creation date
10/4/2006 7:10:45 AM
Metadata
Fields
Template:
Board Meetings
Board Meeting Date
5/23/2005
Description
ISF Section - MOA Between the Eagle River Water & Sanitation District and the Colorado Department of Natural Resources
Board Meetings - Doc Type
Memo
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
17
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).
Show annotations
View images
View plain text
<br />'.!" . I <br /> <br />Proposal to Enlarge Black Lake No, I <br /> <br />March 2005 <br />Page 9 <br /> <br />. <br /> <br />As referenced above, an Environmental Assessment is being prepared under the direction <br />of the U.S, Forest Service to evaluate impacts and the need for mitigation measures, <br />Preliminary investigations have identified the following environmental issues: <br /> <br />o The increase in the water level of the reservoir will result in the loss of about <br />0,76 acre of wetlands and riparian vegetation around the perimeter of the <br />existing reservoir, This impact will be mitigated on-site by the establishment <br />of a new wetland below the dam and new riparian vegetation associated with <br />the higher water level in the reservoir, <br /> <br />o Recreational use of the reservoir, primarily for fishing, would be temporarily <br />disrupted by construction activities, While construction is underway, the <br />reservoir level would be lowered by approximately 3 feet to prevent water <br />from flowing through the spillway, and public access to the dam and fishing <br />pier would be closed for a period of 4 to 6 weeks, Access to the reservoir <br />would be fully restored upon completion ofthe project. <br /> <br />o During the winter season following construction, the amount of water in Black <br />Lake No, ] available for release to Gore Creek could be reduced by up to 60 <br />acre-feet, unless reservoir inflows and exchange potential are sufficient to <br />Tefill the TeseTVoh without adveTSe impacts to im;tream now wateT Tights, <br />This impact would be mitigated through operation of the intercolll1ecting <br />water main during the months of December through March, <br /> <br />. <br /> <br />o Operation of the proposed enlargement would result in a small reduction in <br />streamflows in Black Gore Creek and Gore Creek during spring runoff due to <br />diversion of ]25 acre-feet of additional water to storage in B]ack Lake No, ], <br />This impact would be offset by the release of water to enhance instream flows <br />during the more critical low-flow periods in the fall and winter, <br /> <br />The District's preliminary assessment of the environmental impacts of the proposed <br />second enlargement of Black Lake No, ] indicates that all of the adverse impacts can be <br />effectively mitigated, The additional storage for augmentation of in stream flows and <br />other beneficial uses, combined with operation of the systems interconnect and the <br />Dowds Junction intake, will provide long-term water supply, water quality and aquatic <br />habitat benefits, <br /> <br />. <br /> <br />I-lydrosphere Resource Consultants, Inc., 1002 Walnut St, Suite 200, Boulder, CO 80302 <br />
The URL can be used to link to this page
Your browser does not support the video tag.