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Last modified
1/26/2010 12:50:25 PM
Creation date
10/11/2006 11:43:48 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8273.300
Description
Colorado River Basin Salinity Control - Federal Agency Reports
Basin
Colorado Mainstem
Water Division
5
Date
1/1/1976
Author
USGS
Title
Salt-Load Computations -- Colorado River - Cameo CO to Cisco UT -- Part 2 Basic Data
Water Supply Pro - Doc Type
Report/Study
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<br /> <br />. <br /> <br />.. <br /> <br />. <br /> <br />*'" <br />N <br />c.o <br />I-' <br /> <br />Duration of daily discharge and of daily <br />of record are presented in tables 1-12. <br />specific-conductance data for the period <br />study area. <br /> <br />specific conductance for the period <br />This report also includes the daily <br />of record for all stations in the <br /> <br />SOURCES OF DATA <br /> <br />Records of daily flows of streams are given in the U.S. Geological <br />Survey Water-Supply Paper series "Surface Water Supply of the United States," <br />which is released in numbered parts as determined by natural drainage basins, <br />Before 1961 this was an annual series, but beginning with 1961-65 a 5-year <br />series is being used, Monthly and yearly summaries of streamflow data from <br />the annual Water-Supply Paper series are given in two compilations, which <br />cover the same areas as those used for "Compilation of Records of Surface <br />Waters of the United States, October 1950 to Septmeber 1960." Data for COLO- <br />RADO are given in Parts 6,7,8, and 9. Beginning with 1961, daily streamflow <br />records have been publ ished annually, on a State basis, as U.S. Geological <br />Survey open-fi Ie reports, "Water Resources Data for Colorado, Part 1. Surface <br />Water Records." <br /> <br />Data on qual ity of surface water are given in the U.S. Geological Survey <br />Water-Supply Paper series "Qual ity of Surface Waters of the United States," <br />which is released in an annual series in numbered parts as determined by <br />natural drainage basins. Data for COLORADO are in Parts 6, 7, 8, and 9. <br />Beginning with the 1964 water year, these data also are being publ ished an- <br />nually, on a State basis, as U,S. Geological Survey open-file reports, "Water <br />Resources Data for Colorado, Part 2. Water Qual ity Records." Another annual <br />Water-Supply Paper series, which was publ ished until 1966, is "Qual ity of <br />Surface Waters for Irrigation, Western United States," <br /> <br />DURATION DATA <br /> <br />Flow duration and specific-conductance duration were run for the seven <br />stations for the entire period of record. Where greater than 20 percent of <br />this specific-conductance data for any 1 year is missing, estimates of the <br />missing data were made using the specific conductance versus discharge re- <br />gression. <br /> <br />SALT-LOAD COMPUTATIONS <br /> <br />The annual salt loadings in streamflow in and out of Grand Valley have <br />been computed by multiplying the discharge-weighted annual concentration, in <br />tons per acre-foot, by the annual flow, in acre-feet, for the several inflow <br />and outflow stations. The discharge-weighted annual concentration, in tons <br />per acre-foot, was determined by several alternate methods as follows: <br /> <br />4 <br />
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