WSP00601

• File Number: 8273.300
• Description: Colorado River Basin Salinity Control - Federal Agencies - USGS
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 1/1/1996
• Author: USGS
• Title: Trend Analysis of Selected Water-Quality Data Associated with Salinity-Control Projects in the Grand Valley - in the Lower gunnison River Basin - and at Meeker Dome Western Colorado
• Water Supply Pro - Doc Type: Report/Study

N 320,000
t.) en
'-" z
0 300,000
c...: >--
;;;
ci 280,000
.;:
g 260,000
en
0
::; 240.000
0
en
6 220,000
W
::i
0 200,000
en
en
is 180,000
>-
-'
I
>-- 160,000
Z
0
~
0 140,000
w
t; 120,000
::J
-,
0
.;: 100,000
Z
::J
80.000
1968
32,000
en
Z
g 28,000
;;; 24,000
ci
.;:
0 20,000
-'
en
0 16.000
::;
0
en 12,000
6
W
::i 8,000
0
en 4.000
en
is
::; 0
I
!z 4,000
0
~
0 .8,000
W
1-
en M12,00O
::J
a -16.000
.;:
~ .20,000
-'
u.
-24.000
1968

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STATION 09095500
STATION 09152500
STATION 09163500

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1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994

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1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994

WATER YEAR

Figure 6. LOWESS smooth cUlVes of unadjusted monthly dissolved-solids loads and flow-adjusted monthly
dissolved-solids loads for stations 09095500 Colorado River near Cameo, 09152500 Gunnison River near
Grand Junction, and 09163500 Colorado River near the Colorado-Utah Slate line, water years 1970-93.

TREND ANALYSIS FOR THE COLORADO AND GUNNISON RIVERS 19