My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
WSP04959
CWCB
>
Water Supply Protection
>
Backfile
>
4001-5000
>
WSP04959
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
1/26/2010 2:16:19 PM
Creation date
10/12/2006 12:46:05 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8460.500
Description
Platte River Recovery Plan
Basin
South Platte
Date
8/3/1999
Author
Colo Div of Wildlife
Title
Final Environmental Assessment for the Tamarack Managed Groundwater Recharge Project at Tamarack Ranch State Wildlife Area and Pony Express State Wildlife Area
Water Supply Pro - Doc Type
Publication
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
80
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 />I <br />I <br />I <br />'I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />groundwater recharge projects to provide dependable water supplies that will benefit <br />many fish and wildlife species including federally listed threatened and endangered species <br />along the Platte River Basin in Colorado and Nebraska. This proposal involves the <br />construction of up to 35 wells, approximately 13 miles of pipeline and up to 41 small ponds <br />located in natural depressions (see Figures 2 and 3). The wells will pump an average of <br />30,000 acre-feet of water into the ponds annually. A portion of this water will return back <br />to the South Platte River during times of shortage to provide flows to benefit native fish <br />species in Colorado, and incidentally providing flows for T&E species in central Nebraska, <br />as agreed to by the State of Colorado in Tab 3A of the Cooperative Agreement. <br /> <br />The depositing. of an average of 30,000 acre-feet of water annually in the 41 designated <br />upland sites on the TRSW A and PESW A will create a significant amount of new wetland <br />habitats. Alluvial flows back to the river are also projected to create or enhance <br />similar wetland type habitats below the pumping sites. <br /> <br />A small artificial stream approximately one-third of a mile long will also be constructed <br />along with a series of small ponds that will be used as an emergency water supply for the <br />artificial stream and for maintaining proper water temperatures for the native fish. <br /> <br />2) NO ACTION ALTERNATIVE <br /> <br />If the project is not constructed, none of the above described features will be built. <br />Further, none of the benefits to Colorado T&E species, Federally listed T&E species, or <br />other wildlife benefits will be realized. <br /> <br />The State of Colorado will be limited in its ability to fulfill its commitments under Tab 3A <br />of the Cooperative Agreement. <br /> <br />IV. AFFECTED ENVIRONMENT <br />SOILS <br /> <br />The proposed pond sites and majority of pipelines on the TRSW A will be located in deep, <br />excessively drained soils on upland sandhills. These sand deposits parallel the river to the <br />south and have slopes that are gently roIling to strongly roIling. Permeability of these soils <br />is very rapid. Effective rooting depth is 60 inches or more. The available water capacity is <br />low. Surface runoff is slow, the soil blowing hazard is high, and the erosion hazard is slight. <br />Valent loamy sands and Dailey loamy sands are the prominent soil types. Soils near the <br />proposed wells are mostly deep, somewhat poorly drained soils on low terraces and bottom <br />lands. Permeability is slow. Effective rooting depth is 60 inches or more. Available water <br />capacity is moderate. Surface runoff is slow, and erosion hazard is slight. A fluctuating <br />water table occurs between 12 and 24 inches during winter and spring months. A moderate <br />saline condition is common. Soil types here include, Westplain silty clay loam, Westplain- <br />Aida complex, Manter loamy sand, and Fluvaquentic Haplaquol. <br /> <br />4 <br />
The URL can be used to link to this page
Your browser does not support the video tag.