WSP08995

• File Number: 8410.350
• Description: Basin Multistate Organizations - Missouri Basin Inter-Agency Committee
• State: CO
• Basin: Statewide
• Date: 6/27/1968
• Author: MBIAC
• Title: Comprehensive Framework Study - Fourth Annual Report by Standing Committee to MBIAC
• Water Supply Pro - Doc Type: Report/Study

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municipal water requirements there are over 500 industries that have
their oWn separate water supply systems. The total current demand
for municipal and industrial water supplies is approximately 2-1/2
million acre-feet annually for the total diversion requirement. About
13 percent of this is actual loss and the balance.is returned to the
streams. The total of diversion requirements is not a very meaningful
figure in the aggregate. The requirements for diversion at each indi-
vidual system are of utmost importance to the people being served in
order that they have water when they need it, Municipal and industrial
uses on the average consume only about 15 percent of the water so that
most of it is returned to the stream where, if it is properly treated and
if the stream has sufficient time to assimilate the remaining waste load ,
the water is satisfactory for further downstream use. Thus, from a muni-
cIpal and industrial standpoint only and without being concerned with the
total water supply available, if the downstream communities can.withdraw
from the stream an amount of water equivalent ~ that returned upstream,
this is classed as reuse to get the net effect of municipal uses on the
stream. Currently, about equal amounts of surface and ground water are
utilized in municipal systems and, considering the reuse factor that I
spoke of before, there is less new water required than the equivalent
reuse water. These figures are 21 percent from surface supplies, 21 per-
cent from ground water supplies; and 58 percent amount of equivalent reuse.
On the basis of projected population increases and increased industrializa-
tion, the total water requirements for municipal and industrial use are
estimated to be about 19 billion gallons per d.ay by 2020. It is estimated
that a much larger proportion of.the requirements will have to be met by
surface flow and, of course, a much larger amount canes from the
-equivalent reuse of surface flows.

Mineral Resources _ Mineral .resources actually comprise one of the .
industries of the Basin, but their water requirements have been con-
sidered separately from municipal uses. The Missouri Bosin has reserves
of many minerals, both non-metallic and metallic, which have potentials
for development. The coal.deposits are part of the largest minable
reserve in the United States and .are estimated at over 110 billion .tons.
The annual requirements for future electric power production and the
possibility of the manufacture of hydrocarbons from coal, together with
the water requirements in producing and processing other minerals will
require nearly a million acre-feet of water by 2020.

Water Quality Needs - In general, pollution of the. streams is due to
one of three causes: (1) biological; (2) chemical; or (3) thermal. Bio-
logical pollution usually comes from discharging untreated human or animal
wastes or sewage into the streams, or from processing plants for agricultural.
products such as meat-packing plants or sugar factories. Chemical pollution,
which might be referred to as the dissolved. minerals, comes from discharging
manufacturing wastes from mineral procesaing return flows, from irrigation
developments, etc. and these. increase the dissolved solids in the water.
Thermal pollution stems primarily from cooling water used in the manufacturing

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