My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
WSPC01365
CWCB
>
Water Supply Protection
>
Backfile
>
13000-13999
>
WSPC01365
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
1/26/2010 11:11:23 AM
Creation date
10/9/2006 2:44:57 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8541
Description
San Luis Valley Project
State
CO
Basin
Rio Grande
Water Division
3
Date
7/8/1975
Author
CWCB
Title
San Luis Valley Project Closed Basin Division - 1975 - Closed Basin Report - Statement for presentation to the Board of Directors of the Rio Grande Water Conservation District in Alamosa
Water Supply Pro - Doc Type
Report/Study
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
20
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 />'OO'06n.9 <br /> <br />. <br /> <br />. <br /> <br />Following completion of this study a more vigorous analysis was made by <br /> <br />simulating the area with a digital model. Two alternate plans of ground <br /> <br />water withdrawals were considered. The first plan withdrew 840,000 <br />acre-feet annually from 378 wells with the northern salvage areas producing <br />more water and decreasing the pumpage in the southern areas. The pre- <br /> <br />dicted drawdowns were small in comparison with the thickness of sat.urated <br /> <br /> <br />deposits in the area. The second analysis withdrew the same amount. of <br /> <br /> <br />water from 100 wells whose yield was designed in proportion to loc~l <br /> <br /> <br />aquifer transmissivity. The studies indicated that both arrangements <br /> <br />were superior to the Bureau's layout presented in the house document, <br /> <br /> <br />however, the GS recognized that the Bureau's original design may not be <br /> <br /> <br />the best layout and indicated that the salvage project would be developed <br /> <br /> <br />in stages and that the original well layout should be as field conditions <br /> <br /> <br />dictated. <br /> <br />Results from additional model testing in 1971, in which four cases of <br /> <br /> <br />project operation we~e tested, indicated (1) that the project proposal <br /> <br /> <br />is feasible with water salvage, (2) that the river will not be signifi- <br /> <br /> <br />cantly depleted by withdrawals from wells, (3) that more water can be <br /> <br /> <br />salvaged by using larger well fields, and (4) that the well fields <br /> <br /> <br />should be designed with withdrawals made proportional to local trans- <br /> <br /> <br />missivity. The digital studies essentially confirmed the analog sl,udies. <br /> <br />The study considered four pumping arrangements with varying stress'ls <br /> <br /> <br />being simulated. In case 4 the well field was redesigned so that 11ell <br /> <br /> <br />discharge rates were proportional to the aquifer transmisSivity in,the <br /> <br />7 <br />
The URL can be used to link to this page
Your browser does not support the video tag.