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WSP05700
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Last modified
1/26/2010 2:19:31 PM
Creation date
10/12/2006 1:12:01 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8278.400
Description
Title I - Mexican Treaty
Basin
Colorado Mainstem
Date
2/17/1973
Author
IWBC by Harshbager
Title
Memorandum Report MR-73-1 Appendices, A - Groundwater Conditions in the Colorado River Delta Area, United States and Mexico and Appendix B - Pumping Regimens, Effects and Prediction Analysis
Water Supply Pro - Doc Type
Publication
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<br />I} <br /> <br />,,' <br /> <br />3. Pumping along the '~esterly and northerly edges of the Yumu <br />Mesa to intercept '~esterly and northerly outflm~s from <br />the mound amounted to about 150,000 acre-feet in 1969, <br />for drainage protection of lands in the Yuma Valley and <br />South Gila areas. <br /> <br />" <br /> <br />Only a small amount of ground'~ater is pumped for irrigation <br />purposes, mainly in the southern part of Yuma ~lesa. In recent <br />years (1969-1972), large amounts of groundwater have been pumped <br />to maintain good drainage conditions of lands irrigated by <br />Colorado River water. Host of these drainage '~ells are con- <br />structed in the coarse-gravel aquifer ranging in depth from <br />100 to 300 feet, with yields from 2,000 to 4,000 gpm. The <br />majority of the 1~ells for drainage purposes are located along <br />the boundary bet1~een Yuma Nesa and Yuma Valley sub-areas. <br /> <br />,.-. <br />
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