Water Quality Database
Sampling Parameters
View All
Nitrate + Nitrite Nitrogen as N
Total Phosphate as P
E. Coli Bacteria
Transparency
Temperature - Celsius
Temperature in Fahrenheit
pH
Ammonia Nitrogen as N
Chloride (Lab)
(current)
Sulfate
Total Suspended Solids
Atrazine - Screen
Membrane Fecal Coliform
Total Flow
Instantaneous Discharge
Gage Height
Sampling Locations
View All
Bear Creek
[25-BEA-10]
Beaver Creek, IA
[05-BEI-10]
Beaver Creek, MN
[04-BEM-10]
Bigalk Creek
[07-BIG-10]
Canoe Creek
[20-CAN-10]
Casey Springs
[11-CAS-10]
Clear Creek
[28-CLE-10]
Coldwater Creek
[09-COL-10]
Coon Creek
[19-COO-20]
Decorah Dry Run
[15-DDR-10]
Dry Run
[13-DRY-10]
French Creek
[29-FRE-10]
Little Iowa
[02-LIT-10]
N. Branch of the Upper Iowa
[01-NBR-10]
North Bear
[24-NBE-10]
Patterson Creek
[21-PAT-10]
Pine Creek
[10-PIN-10]
Pine Creek East
[22-PIE-10]
Siewers Spring
[32-SSP-10]
Silver Creek East
[27-SIE-10]
Silver Creek West
[08-SIW-40]
South Bear
[23-SBE-10]
Staff Creek
[03-STA-10]
Ten Mile
[12-TEN-10]
Trout River
[18-TRI-10]
Trout Run
[16-TRU-10]
Upper Iowa River at Bluffton
[31-UIR-80]
Upper Iowa River at Freeport
[17-UIR-55]
Upper Iowa River at Mouth
[30-UIR-10]
Waterloo Creek
[26-WAT-10]
About
UpperIowaRiver.org
Download Chloride Data
CSV Format
1584 samples collected
Sampling Results By Year
All Years
2022
2021
2020
2019
2018
2017
2016
2015
Created with Highcharts 7.1.2
Mean Chloride (Lab) for All Years
(mg/L)
68.62
68.62
22.52
22.52
19.89
19.89
18.44
18.44
17.39
17.39
15.98
15.98
15.84
15.84
15.61
15.61
15.07
15.07
14.56
14.56
14.44
14.44
14.42
14.42
14.02
14.02
14
14
14
14
12.98
12.98
12.72
12.72
11.82
11.82
11.14
11.14
11
11
10.12
10.12
9.81
9.81
9.72
9.72
8.89
8.89
7.76
7.76
7.38
7.38
6.89
6.89
6.06
6.06
6.02
6.02
5.85
5.85
Chloride
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
15-DDR-10: Decorah Dry Run
08-SIW-40: Silver Creek West
16-TRU-10: Trout Run
32-SSP-10: Siewers Spring
13-DRY-10: Dry Run
17-UIR-55: Upper Iowa River at Freeport
01-NBR-10: N. Branch of the Upper Iowa
09-COL-10: Coldwater Creek
03-STA-10: Staff Creek
18-TRI-10: Trout River
10-PIN-10: Pine Creek
12-TEN-10: Ten Mile
31-UIR-80: Upper Iowa River at Bluffton
02-LIT-10: Little Iowa
05-BEI-10: Beaver Creek, IA
04-BEM-10: Beaver Creek, MN
30-UIR-10: Upper Iowa River at Mouth
19-COO-20: Coon Creek
11-CAS-10: Casey Springs
20-CAN-10: Canoe Creek
07-BIG-10: Bigalk Creek
24-NBE-10: North Bear
26-WAT-10: Waterloo Creek
25-BEA-10: Bear Creek
23-SBE-10: South Bear
27-SIE-10: Silver Creek East
21-PAT-10: Patterson Creek
22-PIE-10: Pine Creek East
28-CLE-10: Clear Creek
29-FRE-10: French Creek
Created with Highcharts 7.1.2
Mean Chloride (Lab) for 2022
(mg/L)
75.07
75.07
22.3
22.3
17.66
17.66
17.13
17.13
16.84
16.84
16.49
16.49
16.11
16.11
16.01
16.01
15.87
15.87
15.49
15.49
15.36
15.36
14.9
14.9
14.81
14.81
14.63
14.63
13.8
13.8
13.61
13.61
13.5
13.5
11.26
11.26
11.01
11.01
10.57
10.57
9.97
9.97
9.47
9.47
9.01
9.01
8.34
8.34
7.63
7.63
7.18
7.18
7.17
7.17
6.53
6.53
6.14
6.14
5.6
5.6
Chloride
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
15-DDR-10: Decorah Dry Run
08-SIW-40: Silver Creek West
03-STA-10: Staff Creek
01-NBR-10: N. Branch of the Upper Iowa
16-TRU-10: Trout Run
32-SSP-10: Siewers Spring
17-UIR-55: Upper Iowa River at Freeport
02-LIT-10: Little Iowa
05-BEI-10: Beaver Creek, IA
13-DRY-10: Dry Run
12-TEN-10: Ten Mile
31-UIR-80: Upper Iowa River at Bluffton
09-COL-10: Coldwater Creek
04-BEM-10: Beaver Creek, MN
18-TRI-10: Trout River
30-UIR-10: Upper Iowa River at Mouth
10-PIN-10: Pine Creek
19-COO-20: Coon Creek
07-BIG-10: Bigalk Creek
20-CAN-10: Canoe Creek
11-CAS-10: Casey Springs
26-WAT-10: Waterloo Creek
24-NBE-10: North Bear
25-BEA-10: Bear Creek
23-SBE-10: South Bear
27-SIE-10: Silver Creek East
29-FRE-10: French Creek
21-PAT-10: Patterson Creek
28-CLE-10: Clear Creek
22-PIE-10: Pine Creek East
Created with Highcharts 7.1.2
Mean Chloride (Lab) for 2021
(mg/L)
57.76
57.76
22.66
22.66
17.34
17.34
17.13
17.13
16.26
16.26
16.03
16.03
15.47
15.47
15.41
15.41
15.4
15.4
15.29
15.29
15.23
15.23
14.74
14.74
14.3
14.3
14.16
14.16
13.83
13.83
12.81
12.81
12.11
12.11
11
11
10.43
10.43
10.17
10.17
9.81
9.81
9.74
9.74
9.57
9.57
8.53
8.53
8.09
8.09
7.19
7.19
6.39
6.39
6.21
6.21
6.1
6.1
5.81
5.81
Chloride
0
5
10
15
20
25
30
35
40
45
50
55
60
65
15-DDR-10: Decorah Dry Run
08-SIW-40: Silver Creek West
16-TRU-10: Trout Run
32-SSP-10: Siewers Spring
03-STA-10: Staff Creek
17-UIR-55: Upper Iowa River at Freeport
09-COL-10: Coldwater Creek
13-DRY-10: Dry Run
12-TEN-10: Ten Mile
05-BEI-10: Beaver Creek, IA
01-NBR-10: N. Branch of the Upper Iowa
10-PIN-10: Pine Creek
18-TRI-10: Trout River
31-UIR-80: Upper Iowa River at Bluffton
02-LIT-10: Little Iowa
04-BEM-10: Beaver Creek, MN
30-UIR-10: Upper Iowa River at Mouth
11-CAS-10: Casey Springs
19-COO-20: Coon Creek
26-WAT-10: Waterloo Creek
07-BIG-10: Bigalk Creek
20-CAN-10: Canoe Creek
24-NBE-10: North Bear
25-BEA-10: Bear Creek
23-SBE-10: South Bear
27-SIE-10: Silver Creek East
21-PAT-10: Patterson Creek
28-CLE-10: Clear Creek
22-PIE-10: Pine Creek East
29-FRE-10: French Creek
Created with Highcharts 7.1.2
Mean Chloride (Lab) for 2020
(mg/L)
66.07
66.07
20.4
20.4
16.2
16.2
15.34
15.34
14.54
14.54
14.29
14.29
14
14
13.53
13.53
13.47
13.47
12.83
12.83
12.81
12.81
12.76
12.76
12.39
12.39
12.11
12.11
11.64
11.64
11.09
11.09
10.43
10.43
10.41
10.41
10.33
10.33
9.76
9.76
9.67
9.67
9.23
9.23
9.1
9.1
8.19
8.19
7.47
7.47
7.03
7.03
6.89
6.89
6.53
6.53
5.89
5.89
5.89
5.89
Chloride
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
15-DDR-10: Decorah Dry Run
08-SIW-40: Silver Creek West
16-TRU-10: Trout Run
32-SSP-10: Siewers Spring
17-UIR-55: Upper Iowa River at Freeport
13-DRY-10: Dry Run
09-COL-10: Coldwater Creek
01-NBR-10: N. Branch of the Upper Iowa
10-PIN-10: Pine Creek
03-STA-10: Staff Creek
18-TRI-10: Trout River
12-TEN-10: Ten Mile
31-UIR-80: Upper Iowa River at Bluffton
05-BEI-10: Beaver Creek, IA
02-LIT-10: Little Iowa
30-UIR-10: Upper Iowa River at Mouth
04-BEM-10: Beaver Creek, MN
19-COO-20: Coon Creek
11-CAS-10: Casey Springs
20-CAN-10: Canoe Creek
07-BIG-10: Bigalk Creek
24-NBE-10: North Bear
26-WAT-10: Waterloo Creek
25-BEA-10: Bear Creek
23-SBE-10: South Bear
27-SIE-10: Silver Creek East
21-PAT-10: Patterson Creek
22-PIE-10: Pine Creek East
28-CLE-10: Clear Creek
29-FRE-10: French Creek
Created with Highcharts 7.1.2
Mean Chloride (Lab) for 2019
(mg/L)
62.64
62.64
21.41
21.41
18.57
18.57
16.23
16.23
16.16
16.16
13.81
13.81
13.37
13.37
13.26
13.26
12.96
12.96
12.63
12.63
12.1
12.1
11.89
11.89
11.87
11.87
11.71
11.71
10.79
10.79
10.77
10.77
10.57
10.57
10.48
10.48
9.87
9.87
9.8
9.8
9.49
9.49
8.84
8.84
8.6
8.6
8.49
8.49
7.09
7.09
7.04
7.04
6.49
6.49
5.79
5.79
5.4
5.4
5.16
5.16
Chloride
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
15-DDR-10: Decorah Dry Run
13-DRY-10: Dry Run
08-SIW-40: Silver Creek West
16-TRU-10: Trout Run
32-SSP-10: Siewers Spring
09-COL-10: Coldwater Creek
17-UIR-55: Upper Iowa River at Freeport
01-NBR-10: N. Branch of the Upper Iowa
10-PIN-10: Pine Creek
18-TRI-10: Trout River
03-STA-10: Staff Creek
12-TEN-10: Ten Mile
02-LIT-10: Little Iowa
31-UIR-80: Upper Iowa River at Bluffton
05-BEI-10: Beaver Creek, IA
30-UIR-10: Upper Iowa River at Mouth
19-COO-20: Coon Creek
04-BEM-10: Beaver Creek, MN
20-CAN-10: Canoe Creek
11-CAS-10: Casey Springs
07-BIG-10: Bigalk Creek
24-NBE-10: North Bear
25-BEA-10: Bear Creek
26-WAT-10: Waterloo Creek
23-SBE-10: South Bear
27-SIE-10: Silver Creek East
21-PAT-10: Patterson Creek
22-PIE-10: Pine Creek East
28-CLE-10: Clear Creek
29-FRE-10: French Creek
Created with Highcharts 7.1.2
Mean Chloride (Lab) for 2018
(mg/L)
78.07
78.07
18.93
18.93
18.87
18.87
18.44
18.44
16.24
16.24
16.07
16.07
15.93
15.93
15.61
15.61
15.33
15.33
14.4
14.4
14.23
14.23
13.89
13.89
13.84
13.84
13.77
13.77
13.59
13.59
13.56
13.56
13.29
13.29
12.96
12.96
12.7
12.7
12.07
12.07
11
11
10.57
10.57
9.94
9.94
9.8
9.8
8.03
8.03
8
8
7.61
7.61
6.04
6.04
5.91
5.91
5.43
5.43
Chloride
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
15-DDR-10: Decorah Dry Run
32-SSP-10: Siewers Spring
08-SIW-40: Silver Creek West
16-TRU-10: Trout Run
13-DRY-10: Dry Run
09-COL-10: Coldwater Creek
01-NBR-10: N. Branch of the Upper Iowa
18-TRI-10: Trout River
17-UIR-55: Upper Iowa River at Freeport
12-TEN-10: Ten Mile
03-STA-10: Staff Creek
02-LIT-10: Little Iowa
30-UIR-10: Upper Iowa River at Mouth
10-PIN-10: Pine Creek
31-UIR-80: Upper Iowa River at Bluffton
04-BEM-10: Beaver Creek, MN
19-COO-20: Coon Creek
05-BEI-10: Beaver Creek, IA
20-CAN-10: Canoe Creek
11-CAS-10: Casey Springs
24-NBE-10: North Bear
26-WAT-10: Waterloo Creek
07-BIG-10: Bigalk Creek
25-BEA-10: Bear Creek
23-SBE-10: South Bear
21-PAT-10: Patterson Creek
27-SIE-10: Silver Creek East
22-PIE-10: Pine Creek East
28-CLE-10: Clear Creek
29-FRE-10: French Creek
Created with Highcharts 7.1.2
Mean Chloride (Lab) for 2017
(mg/L)
71.84
71.84
25.84
25.84
23.23
23.23
20.77
20.77
17.76
17.76
17.23
17.23
17.19
17.19
16.21
16.21
16
16
15.21
15.21
14.81
14.81
14.26
14.26
13.87
13.87
13.29
13.29
13.26
13.26
12.87
12.87
12.79
12.79
12.49
12.49
12.01
12.01
11.7
11.7
11.7
11.7
10.09
10.09
10.02
10.02
9.84
9.84
8.74
8.74
8.66
8.66
7.83
7.83
7.64
7.64
7
7
6.89
6.89
Chloride
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
15-DDR-10: Decorah Dry Run
08-SIW-40: Silver Creek West
16-TRU-10: Trout Run
32-SSP-10: Siewers Spring
13-DRY-10: Dry Run
17-UIR-55: Upper Iowa River at Freeport
09-COL-10: Coldwater Creek
18-TRI-10: Trout River
10-PIN-10: Pine Creek
01-NBR-10: N. Branch of the Upper Iowa
31-UIR-80: Upper Iowa River at Bluffton
12-TEN-10: Ten Mile
03-STA-10: Staff Creek
19-COO-20: Coon Creek
30-UIR-10: Upper Iowa River at Mouth
02-LIT-10: Little Iowa
05-BEI-10: Beaver Creek, IA
20-CAN-10: Canoe Creek
04-BEM-10: Beaver Creek, MN
24-NBE-10: North Bear
11-CAS-10: Casey Springs
26-WAT-10: Waterloo Creek
25-BEA-10: Bear Creek
07-BIG-10: Bigalk Creek
23-SBE-10: South Bear
27-SIE-10: Silver Creek East
21-PAT-10: Patterson Creek
22-PIE-10: Pine Creek East
28-CLE-10: Clear Creek
29-FRE-10: French Creek
Created with Highcharts 7.1.2
Mean Chloride (Lab) for 2016
(mg/L)
64.54
64.54
30.8
30.8
23.2
23.2
23.1
23.1
20.56
20.56
19.81
19.81
18.6
18.6
18.57
18.57
17.79
17.79
17.57
17.57
17.53
17.53
17.51
17.51
16.83
16.83
16.54
16.54
16.33
16.33
16.23
16.23
14.3
14.3
13.76
13.76
13.01
13.01
12.47
12.47
10.54
10.54
10.3
10.3
9.84
9.84
9
9
7.4
7.4
7.4
7.4
6.73
6.73
5.67
5.67
5
5
4.96
4.96
Chloride
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
15-DDR-10: Decorah Dry Run
16-TRU-10: Trout Run
08-SIW-40: Silver Creek West
32-SSP-10: Siewers Spring
13-DRY-10: Dry Run
01-NBR-10: N. Branch of the Upper Iowa
17-UIR-55: Upper Iowa River at Freeport
03-STA-10: Staff Creek
05-BEI-10: Beaver Creek, IA
09-COL-10: Coldwater Creek
02-LIT-10: Little Iowa
12-TEN-10: Ten Mile
18-TRI-10: Trout River
04-BEM-10: Beaver Creek, MN
10-PIN-10: Pine Creek
31-UIR-80: Upper Iowa River at Bluffton
30-UIR-10: Upper Iowa River at Mouth
19-COO-20: Coon Creek
11-CAS-10: Casey Springs
20-CAN-10: Canoe Creek
07-BIG-10: Bigalk Creek
26-WAT-10: Waterloo Creek
24-NBE-10: North Bear
25-BEA-10: Bear Creek
23-SBE-10: South Bear
27-SIE-10: Silver Creek East
21-PAT-10: Patterson Creek
28-CLE-10: Clear Creek
22-PIE-10: Pine Creek East
29-FRE-10: French Creek
Created with Highcharts 7.1.2
Mean Chloride (Lab) for 2015
(mg/L)
76.25
76.25
32.68
32.68
20.48
20.48
20.15
20.15
18.45
18.45
17.18
17.18
17.15
17.15
16.15
16.15
14.98
14.98
14.95
14.95
14.78
14.78
14.63
14.63
14.6
14.6
14.05
14.05
13.3
13.3
13.03
13.03
12.78
12.78
11.33
11.33
11.25
11.25
11.08
11.08
9.95
9.95
9.6
9.6
8.9
8.9
8.75
8.75
7.58
7.58
6.6
6.6
5.88
5.88
5.8
5.8
5.6
5.6
5.28
5.28
Chloride
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
15-DDR-10: Decorah Dry Run
08-SIW-40: Silver Creek West
32-SSP-10: Siewers Spring
16-TRU-10: Trout Run
13-DRY-10: Dry Run
17-UIR-55: Upper Iowa River at Freeport
01-NBR-10: N. Branch of the Upper Iowa
09-COL-10: Coldwater Creek
03-STA-10: Staff Creek
10-PIN-10: Pine Creek
05-BEI-10: Beaver Creek, IA
31-UIR-80: Upper Iowa River at Bluffton
02-LIT-10: Little Iowa
18-TRI-10: Trout River
12-TEN-10: Ten Mile
04-BEM-10: Beaver Creek, MN
30-UIR-10: Upper Iowa River at Mouth
19-COO-20: Coon Creek
11-CAS-10: Casey Springs
07-BIG-10: Bigalk Creek
20-CAN-10: Canoe Creek
26-WAT-10: Waterloo Creek
24-NBE-10: North Bear
25-BEA-10: Bear Creek
23-SBE-10: South Bear
27-SIE-10: Silver Creek East
28-CLE-10: Clear Creek
21-PAT-10: Patterson Creek
22-PIE-10: Pine Creek East
29-FRE-10: French Creek