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Table Wq03: Water quality data for selected stations and parameters within the South Grand Watershed

Table Wq03: Water quality data for selected stations and parameters within the South Grand Watershed (MDNR 2000c, USGS 2001b). Selection of state standards used for comparison of values at each site are based on the MDNR use designations corresponding to the section of stream sampled and include the following: AQL Protection of aquatic life, HHPHuman Health Protection-Fish Consumption, DWS Drinking Water Supply, IRR Irrigation, LWW Livestock and Wildlife Watering, WBC Whole-body-contact recreation, BTG Boating. Note: for lake water quality samples, depth ranges are given in feet.
Parameter Standard Measure Exceedence
AQL LWW BTG Min-Max
Station: EPA 009534 (South Grand River) Period: 1994
Temperature (oF) (warm water fishery) 90.0 Max
pH 6.5-9.0 7.9 0/1
Oxygen, dissolved (mg/L) (warm water fishery) 5.0 Min 14.2 0/1
Nitrogen, Total Ammonia (mg/L as N) 0.1-50.61 0.24 0/1
Station: EPA 280516 (Gaines) Period: 1993
Oxygen, dissolved (mg/L) (warm water fishery) 5.0 Min 0.5-5.7 3/5
Coliform, fecal (colonies / 100 ml)
Nitrogen, Total Ammonia (mg/L as N) 0.1-50.61
Phosophorus, Total3 (mg/L as P)
Parameter Standard Measure Exceedence
AQL DWS LWW BTG WBC Min-Max
Depth 0.1-6.1 Station: EPA 280518 (S. Grand R. -Henry Co. Hwy. K Ht-18) Period: 1991-1995
Temperature (oF) (warm water fishery) 90.0 Max 39.2-86.0 0/53
pH 6.5-9.0 6.8-8.6 0/53
Oxygen, dissolved (mg/L) (warm water fishery) 5.0 Min 2.5-17.2 6/27
Coliform, fecal (colonies / 100 ml) 200
Nitrogen, Total Ammonia (mg/L as N) 0.1-50.61 0.02-0.33K 0/27
Phosophorus, Total3 (mg/L as P)
Depth 0.1-5.0 Station: EPA 280520 (South Grand at Dayton, Mo. HT-20) Period: 1991
Temperature (oF) (warm water fishery) 90.0 Max 73.9 0/1
pH 6.5-9.0 7.9 0/1
Oxygen, dissolved (mg/L) (warm water fishery) 5.0 Min 7.4 0/1
Coliform, fecal (colonies / 100 ml) 200
Nitrogen, Total Ammonia (mg/L as N) 0.1-50.61
Phosophorus, Total3 (mg/L as P)
Depth 0.1 Station: EPA 280530 (Tebo Creek at Henry County Hwy. V HT-32) Period: 1994
Temperature (oF) (warm water fishery) 90.0 Max 37.94-85.8 0/34
pH 6.5-9.0 6.6-8.0 0/27
Oxygen, dissolved (mg/L) (warm water fishery) 5.0 Min 0.4-13.5 1/29
Coliform, fecal (colonies / 100 ml) 200
Nitrogen, Total Ammonia (mg/L as N) 0.1-50.61 0.01-0.17 0/27
Phosophorus, Total3 (mg/L as P)
Depth 0.1-6.1 Station: USGS 06921881 (South Grand River at Grand River Church) Period: 1997-2000
Temperature (oF) (warm water fishery) 90.0 Max 32.9-86.0 0/39
pH 6.5-9.0 7.7-8.5 0/64
Oxygen, dissolved (mg/L) (warm water fishery) 5.0 Min 3.9-19.2 3/38
Coliform, fecal (colonies / 100 ml) 200 10-7100
Nitrogen, Total Ammonia (mg/L as N) 0.1-50.61 0.01-0.17 0/27
Phosophorus, Total3 (mg/L as P) 0.05-0.7 14/26

N/O No observations

N/A Not Available

k Non-ideal count of colonies (too large a sample, colonies merged)

e Laboratory estimated value.

1 Based on maximum chronic and acute standards for cold-water fishery. Levels are pH and temperature dependent. For specific criteria at varying pH and temperatures consult Table B of the Rules of the Department of Natural Resources Division 20-Clean Water Commission Chapter 7-Water Quality.

2 Based on maximum chronic and acute standards for general warm-water fishery. Levels are pH and temperature dependent. For specific criteria at varying pH and temperatures consult Table B of the Rules of the Department of Natural Resources Division 20-Clean Water Commission Chapter 7-Water Quality.

3 State standard for phosphorus is currently unavailable. The Environmental Protection Agency currently recommends a maximum of 0.1mg/L for rivers (Christensen and Pope 1997).

4 Based on maximum chronic and acute standards for all waters. Levels are hardness dependent. For specific criteria at varying hardness consult Table A of the Rules of the Department of Natural Resources Division 20-Clean Water Commission Chapter 7-Water Quality.

5 Based on maximum chronic and acute standards for cold water fishery. Levels are hardness dependent. For specific criteria at varying hardness consult Table A of the Rules of the Department of Natural Resources Division 20-Clean Water Commission Chapter 7-Water Quality.

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