WSP01441

• File Number: 8407.500
• Description: Platte River Basin - River Basin General Publications - Missouri River
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 12/1/1971
• Author: Missouri Basin Inter
• Title: Missouri River Basin Comprehensive Framework Study-Volume VII-Plan of Development and Management-Appendix
• Water Supply Pro - Doc Type: Report/Study

ground-water sources alone, whereas 209 communities
utilize surface-water sources exclusively, and 50 com-
munities utilize combined surface- and ground-water
sources. In terms of the population served from public
systems, almost 54 percent is served exclusively from
surface-water sources and about 35 percent, exclusively
from ground-water sources. Improvement in the quality
of water supply from 435 public water systems is
desirable, while six systems have inadequate quantity for
current requirements and 134 systems require additional
treatment of their water supplies. Virtually all of the
communities where improved quality would be desirable
obtain their water from ground-water sources.
Some industries in the basin obtain their water supply
from municipal systems, but only limited data are
available on separate industrial water supply systems. In
1965, 549 industries reported separate water supply

systems; with 127 of these being used exclusively for
cooling water and 422 for process water. Sixty percent
of the process water systems and 43 percent of the
cooling water systems utilize ground water exclusively;
the remainder utilize surface water or combinations of
surface and ground water.

Currently, the gross annual use of water for
municipal, rural domestic, and industrial purposes in the
Missouri River Basin is 2,787,000 acre-feet. About 12.8
percent of the gross demand, equivalent to 356,000
acre-feet annually, is consumptive use. About 21 percent
of the gross demand is obtained from ground water and
79 percent from surface water, some part of which is
made up of return flows from upstream uses. Summaries
of the municipal, rural domestic, and industrial water
supply systems are given in tables 13 and 14.

Table 13 - NUMBER OF PLACES AND POPULATION SERVED BY CENTRAL WATER SYSTEMS
MISSOURI BASIN

With Public W/O Public Water W/O
Total Water Service Service but With Running
Population I Population -\ Population Running Water Water
Component Places Places Served Places I Population Population
(No.) (000) (No.) (000) (No.) (000) (000)
Urban
100,001 & over 7 2500 7 2515 0 0
50,001-100,000 8 680 8 690 0 0
25,001-50,000 14 560 14 572 0 0
10,001-25,000 39 630 39 640 0 0
5,501-10,000 52 400 52 4 11 0 0
2,501-5,500 I II 410 III 422 0 0
Subtotal 231 5180 231 5250 0 0
Rural Non-Farm
1,001-2,500 319 531 319 531 0 0
Under 1,000 2055 596 I 1223 499 832 97
Households 1 913 (55)2 1 572 286
Subtotal (2374) 2040 - - - 1085 832 669 "o~
"'-uv
Rural Farm --- 1340 - ~ --- 884 441
- -
Total 2605 8560 1773 6280 832 1553 727

lNumber of places not determined. Households range from single dwelling to those in an unincorporated village.
2Included in population served by urban central systems.

Table 14 - EXISTING INDUSTRIAL WATER SUPPLY
SYSTEMS, MISSOURI BASIN

-
Number of Reported
Industries Using
Process Cooling
Source of Supply Water Water Total
Surface 105 49 154
Ground 254 55 309
Combined Surface
and Ground 63 I 23 86
Total 422 127 549

46

Sewage Treatment

As of the 1960 Federal census, there were 4,885
municipalities in the Missouri Basin, of which 1,773
communities containing 80 percent of the basin's popu-
lation were served by public water systems. However,
there were only 1,308 public sewerage systems, of which
1,207 provided treatment of wastes before discharging
their effluent. The systems providing waste treatment
included 1,009 with secondary treatment and 198 with
primary treatment only. The reduction in pollution load
provided by these plants was slightly over 9 million P.E.
out of a pollution load of 16.8 million P.E. Also, in
1960, the number of industrial plants reported was 651,
of which 49 were served by municipal sewerage systems,