1999 Sampling Results 

cottonwood leavenworth2.jpg (49568 bytes)
Cottonwood River near Leavenworth, MN


The 1999 sampling season began in early April of 1999, and ran through the end of September. Samples were collected monthly (base flow) at each station through the growing season (May through September). Storm event samples, equivalent to runoff from a two inch storm event, were also collected with the aid of ISCO 3700 water samplers.  Lab results from each sample collected can be found below.

Five Sites
Cottonwood River near Leavenworth, two storm events sampled
Cottonwood River near Revere, one storm event sampled
Highwater/Dutch Charley Creeks, two storm events sampled
Plum Creek, two storm events sampled  (to view the '99 flow record, click here)
Sleepy Eye Creek near Leavenworth, two storm events sampled

This graph illustrates total suspended solid loading rates at each station, from the past three years.

fish survey.jpg (33408 bytes)

The Department of Natural Resources (DNR) conducted a fishery survey of the Cottonwood River in August, 1999. This picture is an example of the equipment used and the variety of fish species documented during the survey.

The following are descriptions of the nutrients that are analyzed after each storm event or monthly grab sample.


Definitions

Total Suspended Solids (TSS): The amount of soil, organic matter, sand, etc. in a sample of water. Sources include, soil from fields, urban areas, and stream banks, as well as, leaf litter, grass clippings, human waste, animal waste, and crop residues.

Nitrate and Nitrite Nitrogen (N-NO2 + NO3): The form of nitrogen used by plants. It is easily dissolved in water. Increasing the quantity of this nutrient in water causes excess aquatic plant growth leading to odor problems as the plants die and break down. The decomposition process also uses oxygen that could otherwise be used by fish and other aquatic life. Sources include fertilizers, human waste, animal waste, and septic systems.

Total Phosphorus (TP): Phosphorus can be found attached to soil or dissolved in water. Elevating the amount of this nutrient causes excess plant growth leading to odor problems as the plants die and break down. This also results in less oxygen in the water that can lead to fish kills. Sources include fertilizer, human waste, animal waste, native soil, and some detergents.

Orthophosphorus (P-PO4): Orthophosphorus, or soluble reactive phosphorus, is the only phosphorus compound readily available for use by algae or other aquatic plants.  It therefore provides a measure of the phosphorus immediately available for plant growth.

 

LAB

N-NO2+

FECAL

STATION

DATE

TIME

SAMPLE

TSS

NO3

P-PO4

TP

COLIFORM

ID #

ID #

MG/L

MG/L

MG/L

MG/L

/100ML

Non-impacted stream/Western Corn Belt Plains

75.50

6.50

0.35

1200.00

PRIMARY

COTTONWOOD RIVER

NEAR LEAVENWORTH

Base Flow

3/16/99

11:35

3796

13.25

3.58

0.16

0.15

Base Flow

4/13/99

12:30

3814

247.17

11.68

0.18

0.35

381.00

Event

5/7/99

6:11

3840

196.00

7.06

0.11

0.22

Event

5/8/99

10:11

3851

173.50

10.24

0.14

0.21

Event

5/9/99

22:38

3862

194.25

11.90

0.15

0.23

Fecal Grab

5/24/99

13:00

3882

170.00

Event

6/10/99

19:30

3908

765.00

6.59

0.10

0.88

Event

6/11/99

7:30

3909

590.00

8.81

0.25

0.80

Base Flow

6/22/99

10:20

3919

95.50

9.97

0.16

0.16

490.00

Base Flow

7/30/99

8:45

3955

86.50

2.64

0.13

0.22

420.00

Base Flow

8/30/99

9:30

3993

39.50

0.59

0.07

0.21

95.00

Base Flow

9/23/99

9:45

4068

41.00

0.44

0.05

0.13

130.00

Average

221.97

6.68

0.14

0.32

281.00

PRIMARY

COTTONWOOD RIVER

NEAR REVERE

Base Flow

3/16/99

15:20

3797

14.50

3.43

0.13

0.13

Base Flow

4/13/99

15:30

3816

106.25

10.37

0.15

0.24

153.00

Event

5/7/99

7:05

3843

109.00

6.59

0.07

0.14

Event

5/8/99

9:00

3849

97.50

10.56

0.13

0.14

Event

5/9/99

13:14

3861

66.75

11.24

0.12

0.15

Event

5/21/99

10:30

3878

169.00

9.83

0.12

0.24

Fecal Grab

5/24/99

11:00

3880

148.00

Base Flow

6/22/99

13:45

3923

97.50

8.62

0.19

0.45

530.00

Base Flow

7/30/99

11:15

3958

54.25

2.97

0.18

0.23

260.00

Base Flow

8/30/99

12:15

3996

54.50

0.50

0.15

0.22

990.00

Base Flow

9/23/99

12:50

4071

32.25

0.46

0.09

0.33

330.00

Average

80.15

11.01

0.13

0.23

402.00

LAB

N-NO2+

FECAL

STATION

DATE

TIME

SAMPLE

TSS

NO3

P-PO4

TP

COLIFORM

ID #

ID #

MG/L

MG/L

MG/L

MG/L

/100ML

Non-impacted stream/Western Corn Belt Plains

75.50

6.50

0.35

1200.00

PRIMARY

LOWER

SLEEPY EYE CREEK

NEAR LEAVENWORTH

Base Flow

4/13/99

13:20

3815

292.50

17.49

0.21

0.35

150.00

Event

5/6/99

10:25

3837

144.00

11.75

0.10

0.18

Event

5/7/99

10:25

3838

89.50

14.59

0.14

0.17

Event

5/8/99

10:45

3852

204.00

18.56

0.14

0.25

Event

5/10/99

10:17

3864

177.00

19.06

0.11

0.23

Fecal Grab

5/24/99

13:45

3883

66.00

Event

6/10/99

7:30

3906

312.00

8.72

0.14

0.46

Event

6/10/99

15:27

3907

1195.00

14.00

0.36

1.22

Event

6/11/99

3:27

3905

*1205.00

12.58

0.20

*1.38

Base Flow

6/22/99

10:45

3920

156.00

15.71

0.29

0.42

380.00

Base Flow

7/30/99

9:30

3956

100.50

2.79

0.07

0.23

310.00

Base Flow

8/30/99

10:00

3994

35.00

0.49

0.16

0.18

1230.00

Base Flow

9/23/99

10:15

4069

24.50

0.42

0.10

0.10

590.00

Average

327.92

11.35

0.17

0.43

454.00

SECONDARY

HIGHWATER /DUTCH

CHARLEY CREEK

NEAR LAMBERTON

Base Flow

4/19/99

15:10

3825

89.75

11.79

0.13

0.16

67.00

Event

5/7/99

2:00

3846

102.50

9.26

0.12

0.18

Event

5/7/99

10:00

3845

159.25

10.08

0.10

0.22

Event

5/8/99

10:01

3850

164.00

12.61

0.15

0.24

Fecal Grab

5/24/99

11:45

3881

122.00

Event

6/9/99

17:02

3902

327.50

7.95

0.11

0.31

Event

6/9/99

21:02

3903

1885.00

5.68

0.29

2.30

Event

6/10/99

1:02

3904

1362.50

6.28

0.27

1.77

Base Flow

6/22/99

12:15

3921

89.25

11.69

0.22

0.23

994.00

Base Flow

7/30/99

10:45

3957

22.25

3.94

0.18

0.20

710.00

Base Flow

8/30/99

11:15

3995

9.00

0.68

0.25

0.31

645.00

Base Flow

9/23/99

12:00

4070

6.00

0.64

0.06

0.13

122.00

Average

383.36

7.33

0.17

0.55

443.00

*sample dropped during analysis, estimate

LAB

N-NO2+

FECAL

STATION

DATE

TIME

SAMPLE

TSS

NO3

P-PO4

TP

COLIFORM

ID #

ID #

MG/L

MG/L

MG/L

MG/L

/100ML

Non-impacted stream/Western Corn Belt Plains

75.50

6.50

0.35

1200.00

TERTIARY

PLUM CREEK

REDWOOD CO. RD.10

Base Flow

4/14/99

13:05

3818

151.50

11.93

0.22

0.23

137.00

Event

5/7/99

6:59

3842

105.00

8.64

0.06

0.13

Event

5/8/99

18:54

3858

132.50

14.75

0.07

0.18

Event

5/9/99

18:54

3859

90.00

14.66

0.05

0.15

Event

5/20/99

13:30

3876

998.75

9.64

0.15

1.09

Event

5/20/99

17:30

3877

2152.50

5.17

0.18

2.23

Fecal Grab

5/24/99

9:50

203.00

Base Flow

6/22/99

13:10

3922

53.75

12.49

0.08

0.15

890.00

Base Flow

7/30/99

12:00

3959

14.25

5.67

0.25

0.40

560.00

Base Flow

8/30/99

12:35

3997

34.00

0.88

0.14

0.14

2580.00

Base Flow

9/23/99

13:30

4072

5.00

0.70

0.07

0.07

140.00

Average

373.73

8.45

0.13

0.48

752.00

 

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Redwood-Cottonwood Rivers Control Area (RCRCA)
1241 East Bridge Street
Redwood Falls, MN 56283
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