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

Table 6,2,

N
f--
o
f-4

Subbasin
Number

1
2
3
4
5
6
7
8
9

Subbasin characteristics.

Area

(km2)

2.823
6,035
7.122
3.937
4.869
14.711
3.263
8.366
4.455

Overland
Flow
Routing
Coefficient

(min,)

11.
11.
11.
11.
11.
11.
11.
11.
11.

Tributary
Flow
Routing
Coefficient

application of tbe second salt loading
coefficient, and 2) the value of the second
coefficient. However, data were not available
for model validation.

(min.)

47.
57,
57.
15.
62.
)2,
21.
62.
31.

Simulation Results

Estimated salt output
from Coal Creek

The model was run utilizing generated
precipitation data for a 3-year period. The
simulated annual and average salt loads by
source are given in Table 6.4. The average
estimated salt load from the natural channels
and overland flow is 121 x 107 gms per year.

Table 6,3, Channel and salt loading characteristics.
Mean Mean Wetted Perimeter Salt Pickup Rates
Stream Length Dens i ? Coefficients Initial K K after lO,OO~ min.
Order (gm/m2_minO.5)
(m) km/km A .B (gm/m2~min .5)
1 45, 57.10 2.33 0.245 0.233 0.120
2 404. 12,80 2.24 0.29 0,233 0.120
3 3211. 2.86 2.14 0.34 0,233 0,120
4 32110. 0.57 2,10 0.40 0,233 0.120

400

300

c
'S
.....
...
E

200

/~\ ____ FLOW
I ,...-
, I
I I
I I
I I
I I
I \
I I
I \
f \
, I
" I \
I 1/ \
, I' \
, \
, \
, \
I \
\
\
I \
I \
,
I
I

5

2500

~

2000

.....
CI
E

~

3=
o
-l
lJ..

100

~

/CONCENTRATION

2
o
I-
et
II::
I-
2
W
U
2
o
U

o
o

1500

1000

500
30

10 15 20

TIM E (hours)

25

Figure 6.3. Model response to 0.2 rom of surface runoff (lower Coal Creek site).

59