Hydrology of Area 61, Northern Great Plains and Rocky Mountain Coal Provinces, Colorado and New Mexico

• Description: Hydrology of Area 61, Northern Great Plains and Rocky Mountain Coal Provinces, Colorado and New Mexico
• State: CO
• State: NM
• Author: Abbott, P. O.; Geldon, Arthur; Cain, Doug; Hall, Alan; Edelmann, Patrick
• Title: Hydrology of Area 61, Northern Great Plains and Rocky Mountain Coal Provinces, Colorado and New Mexico
• Water Supply Pro - Doc Type: Publication

4.0 HYDROLOGIC NETWORKS
4.1 Surface -Water Networks
Streamflow Information is Available from 52 Locations,
Water - Quality Information from 22 Locations, and Biological
Information from 45 Locations
Information on surface water is available from 27 active streamflow - gaging
stations and 11 active water - quality stations.
Streamflow - discharge information presently
(1982) is being collected at 27 locations in Area 61.
In addition, there are 25 sites where data collection
has been discontinued but information is available
for various periods of record. The location of all 52
stations is shown in figure 4.1 -1; a station description
for each station is given in the "Supplemental Data"
section of this report. The 52 streamflow - gaging
stations consist of 44 that recorded continuous flow
and 8 crest -stage gages that recorded only high stages
of runoff associated with rainstorms or snowmelt.
Each streamflow station has been assigned an
eight -digit number, such as 07124200. The first two
digits "07" refer to the major drainage and indicate
that these stations are located in the Arkansas River
basin. The remaining six digits index the station
location relative to other stations in a basin; numbers
increase in a downstream direction. For this report,
a lesser map number has been assigned each station,
as shown in the "Supplemental Data" section; this
number is used in all illustrations.
Since water year 1961 the data have been pub-
lished in the annual U.S. Geological Survey reports
"Water Resources Data for Colorado" and "Water
Resources Data for New Mexico." Compilations of
records prior to 1970 also are available in U.S.
Geological Survey Water - Supply Papers: WSP
1311 -- Compilation of Records of Surface Waters of
the United States through September 1950, Part 7
(Lower Mississippi River basin). WSP 1731-- Compi-
lation of Records of Surface Waters of the United
States, October 1950 to September 1960, Part 7
34
(Lower Mississippi River basin). WSP 1921 - -Sur-
face -Water Supply of the'United States, 1961 -65,
Part 7, Volume 2 (Arkansas River basin). WSP
2121 -- Surface -Water Supply of the United States,
1966 -70, Part 7, Volume 2 (Arkansas River basin).
The first two publications listed are compilations
of monthly records and the last two are compilations
of daily records. The data also are available from
computer storage through the National Water Data
Exchange (NAWDEX).
Surface -water quality information presently
(1982) is being collected at 11 locations in Area 61.
There are 11 additional locations where data have
been collected in the past. The location of all 22
stations is shown in figure 4.1 -1. A summary of the
types of data available and the period of record is
given in the "Supplemental Data" section. Much of
the water - quality data available shows major anions
and - eations, but several sites also have data available
for nutrients, metals, and suspended sediment. In
addition to the surface -water quality stations shown
in figure 4.1 -1 where laboratory chemical- quality
data are available, monthly measurements of specific
conductance and water temperatures are made at
many of the continuous - record discharge stations.
Between 1971 and 1980, biological data have
been collected at 45 sites in Area 61. The location of
all 45, all sites in Colorado, is shown in figure 4.1 -1;
a site description and period of record are given in
the "Supplemental Data" section.