2006 Chemical Measurements - Dissolved Oxygen
RM
Time
Temperature DO
153
127
9:48 AM
4:15 PM
14.85 °C
19.83 C
10 mg/L
9.2 mg/L
124.5
115
102
11:05 AM
11:20 AM
11:20 AM
1:15 PM
10:25 AM
11:16 AM
17 C
16 C
18 C
17 C
17 C
20 C
12:09 PM
20 C
11:00 AM
9:32 AM
10:28 AM
11:04 AM
12:18 PM
12:42 PM
12:30 PM
20 C
16 C
17 C
17 C
17 C
17 C
17 C
19 C
4.0 mg/L
9 mg/L
8.0 mg/L
8.0 mg/L
11.8 mg/L
8.0 mg/L
10 mg/L
8.0 mg/L
10 mg/L
10 mg/L
11 mg/L
8.0 mg/L
8.0 mg/L
9.0 mg/L
9.0 mg/L
9.0 mg/L
Not
recorded
8.0 mg/L
9.0 mg/L
40 %
90%
80%
82%
120%
86 %
108%
86 %
108%
108%
60%
83%
82%
93%
93%
93%
40%
84%
95%
Drop count
Drop test kit
110%
115%
105%
45%
83.4%
82.5%
Drop test kit
40%
110%
70%
Not meter or
drop kit
Drop count kit
96.5
92
87
84.5
76 land
11:08 AM
10:15 1:25
17.7 C
17 C  C
55
41
10:25 AM
12:45 PM
1:40 PM
10:00 AM
10:45 AM
18 C
19 C
19 C
23 C
21 C
39.5
11:25 AM
10:47 AM
21 C
19 C
10.0 mg/L
11.0 mg/L
10.0 mg/L
6 mg/L
7.45 mg/L
mg/L
7.2 mg/L
4 mg/L
35
28
10:44 AM
9:30 AM
20.2 C
18.2 C
9.4 mg/L
6.8 mg/L
76 boat
61E
61W
59
%
saturation
100%
100 %
method
Where Taken
Drop count kit
LaMotte
Colorimeter
Drop test kit
ampules
Hach DR-890
ampules
Drop count
Drop Count
Test tabs
ampules
Drop test kit
Site notes tabs not
terribly accurate
Several tests in this
timeframe – all 9.0
mg/L
25E
10:35 AM
18  C
11.0 mg/L 110%
25W
10:23 AM
18 C
8.0 mg/L
87%
11:05 AM
17.5 C
7.0 mg/L
75%
SURFACE
11:42 AM
17 C
8.0 mg/L
85%
SURFACE
12:45 PM
17 C
8.0 mg/L
85%
SURFACE
1:25 PM
10:30 AM
11:30 AM
11:51 AM
18 C
17 C
17 C
17 C
6.0 mg/L
6.0 mg/L
7.0 mg/L
7.0 mg/L
70%
65%
75%
75%
12:50 AM
1:30 PM
12:45 PM
2:00 PM
9:50 AM
17 C
18 C
18.39 C
18  C
18  C
8.0 mg/L
6.0 mg/L
8.52 mg/L
4.0 mg/L
7.16 mg/L
85%
65%
94.3%
40%
74.1%
YSI METER
11:38 AM
20.3  C
9.5 mg/L
94%
Drop count
11:30 AM
18.4 C
6.4 mg/L
70%
Drop count
20 C
110%
130%
120%
130%
77%
Drop test kit
18.5 C
10 mg/L
12 mg/L
11 mg/L
12 mg/L
7.2 mg/L
5.5
2.5
10:52 AM
11:15 AM
11:25 AM
1:25 PM
11AM3:35 PM
11:00 AM
11:35 AM
18 C
18 C
4.0 mg/L
5.9 mg/L
35%
60%
Color
comparator
Test Tabs
Drop count kit
2
1:30 PM
20 C
48%
Drop count kit
East RM 4
10:15 AM
10:45 Am
11:28 AM
10:32 AM
19°C
19°C
20°C
17.2 C
4.6 mg/L
avg.
4.0 mg/L
4.0 mg/L
6.0 mg/L
5.1 mg/L
11:00 AM
1:00 PM
2:00 PM
Not read
17.2 C
17.3 C
17.3 C
5.2 mg/L 53%
4.83 mg/L 48%
5.2 mg/L 53%
18.5
18
11.5
Harlem
RM14
Harlem
RM13
7 land
7 boat
East RM
1E
East RM
1W
Red Hook
Unable to
40%
40%
65%
53%
Drop Kit
Drop kit
Drop Count
SURFACE
SURFACE
BOTTOM
BOTTOM
BOTTOM
BOTTOM
BOTTOM
BOTTOM
7.5
Fort
Wadsworth
Breezy
Point
read
10:52 AM
20 C
10 mg/L
110%
11:15 AM
11:25 AM
1:25 PM
10:44 AM
20 C
20 C
20 C
17 C
12 mg/L
11 mg/L
12 mg/L
7.1 mg/L
130%
120%
130%
75%
Digital probe
Hach DR820
colorimeter