WSP03634

• File Number: 8102.400
• Description: Arkansas River Hydrology - Transmountain Diversions-Imports
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 2/10/1998
• Author: USGS
• Title: Methods to Determine Transit Losses for Return Flows of Transmountain Water in Fountain Creek Between Colorado Springs and the Arkansas River-Colorado
• Water Supply Pro - Doc Type: Report/Study

I

I

"~ .~.

;;'. :::
,;",;..".

......'.
. (::,'.

~. . '":.

s"

:>>/
.'.'.":'"

- "
'. '
;,,~.. ",:

..,

"v'

",,'.

~:ii(~.
,
~:~>.;
:'-'-..(
;."

".".

.,'

',-',

: '.=--

, ,

'. ~.

'.' ,

;~ .

oa02'iG

240

>-
<
o
a: 200 -
uJ
c..
o
z
o
()
\:: 160 -
a:
uJ
c..
...
uJ
~ 120
()
iii
::l
u
~ 80

a:
<
uJ
>-
150 a:
uJ
c..
...
uJ
uJ
U.
- 120 W
a:
u
<
u.
o
90 ~
Z
<
CIl
:;)
o
60 i:
z

,--

-=

-

~ _ _ _ _/A:'~AG' :"~'~W_'"' :"'00_ _ _ _ _ _ _ == _ _ ~ _:

;::
0 - .--
...
u. - -,-- l-- -
:E -.--
< 40 - c--
uJ -
a:
...
CIl
0
1965 1970 1975

;:
0
...
- 30 u.
:;;
<
uJ
a:
...
CIl
1980 1985

Figure 4.--Variation in annual streamflow at station 07105800
Fountain Creek at Security, 1965 through 1985 water years.

The interactions of a substantially variable streamflow, streamflow
diversions, return flows, and ground-water withdrawals in the stream-aquifer
system result in a complex hydrologic system. Therefore; transmountain return
flows in Fountain Creek could sustain transit losses from several sources.

POTENTIAL TRANSIT LOSSES OF TRANSMOUNTAlN RETURN FLOW

.Six potential transit losses associated with transportation of trans.
mountain return flows down Fountain Creek were identified for the present
study: bank storage, channel storage, evaporation, transpiration,
inadvertent diversion, and ground-water withdrawal. A discussion of each
of these potential transit losses and its applicability to the present
study follows.

8