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Water Resources of Colorado

Water Resources Data, Colorado, Water Year 1998--Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin

by R.M. Crowfoot, N.L. Bruce, J.W. Unruh, J.T. Steinheimer, G.F. Ritz, M.E. Smith, R.D. Steger, and G.B. O'Neill

Available from the National Technical Information Service, Springfield, VA 22161, USGS Water-Data Report CO-98-1, 451 p., 5 figs.

This document also is available in pdf format: Adobe Acrobat Icon WDR-CO-98-1 (2,847 KB)
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Water-resources data for Colorado for the 1998 water year consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of wells and springs. This report (Volumes 1 and 2) contains discharge records for 316 gaging stations, stage and contents of 26 lakes and reservoirs, discharge measurements for 1 partial-record low-flow station and 1 miscellaneous site, peak-flow information for 29 crest-stage partial-record stations; water quality for 118 gaging stations and for 8 lakes and reservoirs, supplemental water quality for 192 gaged sites; water quality for 72 miscellaneous sites and 14 observation wells; water levels for 3 observation wells, and meteorological data for 25 sites. Seven pertinent stations operated by bordering States also are included in this report. The records were collected and computed by the Water Resources Division of the U.S. Geological Survey under the direction of W.F. Horak, District Chief. These data represent that part of the National Water Data System collected by the U.S. Geological Survey and cooperating State and Federal agencies.

Table of Contents


List of surface-water stations, in downstream order, for which records are published in this volume



Overview of hydrologic conditions



Chemical quality of streamflow

Special networks and programs

Explanation of the records

Station identification numbers

Downstream order system

Latitude-longitude system

System for numbering wells, springs, and miscellaneous sites

Records of stage and water discharge

Data collection and computation

Data presentation

Station manuscript

Data table of daily mean values

Statistics of monthly mean data

Summary statistics

Identifying estimated daily discharge

Accuracy of the records

Other records available

Records of surface-water quality

Accuracy of the records

Classification of records

Arrangement of records

Onsite measurements and sample collection

Water temperature


Laboratory measurements

Data presentation

Remark codes

Records of ground-water quality

Data collection and computation

Data presentation

Access to USGS water data

Definition of terms

Selected references

List of discontinued surface-water discharge or stage-only stations

List of discontinued surace-water-quality stations

Publications on techniques of water-resources investigations

Station records, surface water

Transmountain diversions from Colorado River Basin in Colorado

Discharge at partial-record stations and miscellaneous sites

Crest-stage partial-record stations

Special study and miscellaneous sites

Precipitation records

Supplemental water-quality data for gaging stations

Station records, ground-water levels

Quality of ground water


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Water Resources of Colorado

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