WSP07478

• File Number: 8272.600.60
• Description: Colorado River Basin Salinity Control Program - Basin Member State Info - Utah
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 3/1/1982
• Title: Salt Uptake in Natural Channels Traversing Mancos Shales in the Price River Basin - Utah
• Water Supply Pro - Doc Type: Report/Study

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CHAPTER VI
MODEL APPLICATION TO THE COAL CREEK DRAINAGE

Application Procedure

The hydrosslinity model of Chapter V was
applied to the Coal Creek subbasin. The
following methods were used in process
r epresentat ion:

1. The rainfall and precipitation
excess values were generated by the methods
described above to represent Price River
valley meteorological conditions and the
response of the natural system.

2. Overland flow and the flow in
channels of stream order 3 or less were

Lateral
Tributary Flaw
(Channel Orders
2ond3 )
(S=K'01

routed by assuming storage to be a linear
function of outflow, and larger channel flows
were routed by the Muskinghum equation.

3. Salt pickup from overland flow was
estimated by Equation 5.6.

4. Salt loading within a particular
order of channel was assumed to be uniform
and represented by Equation 4.5.

The Coal Creek drainage was subdivided
into nine subbasins (five entering from the
right and four from the left) as shown on
Figure 6.1. The main tributaries and their

Overland and Microchannel Flaws
(Channel Order il
(S=K'Ol

Primary Channel Flow
(Channel Order 4)
S=K'(X'I +(I-Xl'O

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2
MILES

I
3

I
SCALE

Price River
(Channel Order 51

Figure 6.1. The subbasins and macrochannels of the Coal Creek drainage.

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