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WSP04853
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Last modified
1/26/2010 2:15:55 PM
Creation date
10/12/2006 12:41:35 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8200.750
Description
San Juan River General
State
CO
Basin
San Juan/Dolores
Water Division
7
Date
6/1/1987
Author
Wheeler and Assoc
Title
Documentation for La Plata River Hydrology Analysis - Historic and Virgin Flow Conditions - June 1986
Water Supply Pro - Doc Type
Report/Study
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<br />. <br /> <br />....,,~\()~'7 <br />U :'.'\',..;:) ..~ <br /> <br />. <br /> <br />PART II. USGS GAGE RECORDS USED IN THE ANALYSIS <br /> <br />. <br /> <br />La Plata near Hesperus <br /> <br /> <br />The gage is located immediately downstream of the La Plata River bridge <br /> <br /> <br />on U. S. Highway 160. The tributary drainage is approximately 37 square miles. <br /> <br /> <br />Records are available for the period of 1918 through 1984, Measurements are <br /> <br /> <br />considered by the USGS to be "good," except for winter months of December <br /> <br /> <br />through March when no stage-discharge measurements are available. The records <br /> <br /> <br />for winter are generally "poor." "Good" indicates that the error in the daily <br /> <br /> <br />records is believed to be less than ten percent. "Poor" measurements during <br /> <br /> <br />winter months indicates that the error is probably greater than 15 percent. <br /> <br /> <br />The recorded flow at the gage reflects upstream diversions for irrigation. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />Cherry Creek near Red Mesa <br /> <br /> <br />The gage was located near the mouth of Cherry Creek, about two miles <br /> <br /> <br />northwest of Red Mesa. The tributary drainage area is approximately 66 square <br /> <br /> <br />miles. Records are available for the period of 1938 through 1950. The accuracy <br /> <br /> <br />of the measurements apparently varied somewhat from year to year, with nota- <br /> <br />tions by the USGS indicating that the records were "fair" or "poor." The recorded <br /> <br /> <br />flow at the gage reflects diversions for irrigation. <br /> <br />. <br /> <br />. <br /> <br />La Plata River at Colorado-New Mexico State Line <br /> <br /> <br />The gage is located at the Colorado-New Mexico state line. The drainage <br /> <br /> <br />area above the gage is approximately 331 square miles. Records are available <br /> <br /> <br />for the period of 1920 through 1984. Measurements are considered by the USGS <br /> <br /> <br />to be "good," except for the winter period which are generally "poor." The <br /> <br /> <br />recorded flow at the gage reflects diversions for irrigation and storage. <br /> <br />. <br /> <br />Summaries of gage records are presented in Appendix A of this report. <br /> <br />. <br /> <br />-3- <br /> <br />. <br /> <br />Ji.::-ti:;" <br />
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