WSP07903

• File Number: 8200.760
• Description: Yampa River General
• State: CO
• Basin: Yampa/White
• Water Division: 6
• Date: 1/1/2002
• Author: USGS
• Title: Evaluation of Trends in pH in the Yampa River - Northwestern Colorado - 1950-2000
• Water Supply Pro - Doc Type: Report/Study

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INTERPRETATION OF DATA COLLECTED FOR THIS STUDY 13

9.2
00 9,0 + + + + + +
f- +
Z 88 + + +
::> +
"'0 86
,a: 8.4 + +
:c'"
~O 82 + + +
Z + +
;::
00 8,0 + + + + + +
7,8
Z 15
UJi' + + +
"'000 + +
>-i=~cr: I + + +
X<(<CW 10 66 percent
0((0:1- +
[a~g::i 178 percent + + of saturation +
>W-ICC of sa Iura lion / +
.....JO-w 5 + + + + + + + + + + +
Oz:2a..
~O~
-0
0
0
25
ui + + + +
+ +
a: 00 + +
::>UJoo + +
f-UJ::> +
",a:- 20 + +
a: ",00 +
UJUJ-' + + + + +
CLOUJ
" 0 + + + + +
UJ'"
f-
15
1200 1600 2000 2400 0400 0800 1200
23 2.
AUGUST 1999
Figure 7, Diurnal measurements at Yampa River above Elk River, August 23-24, 1999,

8,9
00 8,8 + + + +
f- +
Z 8,7 + + +
::> 8,6 +
"'0 + + +
,a: 8,5 +
:c'"
~o 8.4 + +
Z + +
;:: 8,3 + +
+ +
00 8,2 + + +
8,1
10
Z
UJ ' + + +
<DBCI? 9 +
>-i=:2a: + + I +
X<(<(UJ +
Oa:1I1- 8 + 140 +
01-52:J percent 78 percent
WZ..Jcc 7 of saturation +
>w:::!w + of saturation +
-l():2a..
@zz + /+ + +
6 +
000- + + + + + +
_0
0 5
25
ZOO + + +
-::> 2. + +
woo + + +
a:-' 23
::>UJ + +
f-O +
"'00 22 + +
a:UJ +
UJUJ 21 + +
CLa: +
"'" +
UJUJ 20 + + +
f-O + + +
19 0800 1200
1200 1600 2000 2400 0400
23 2.
AUGUST 1999

Figure 8, Diurnal measurements at Yampa River below Craig, August 23-24, 1999,