Table Wq03: Selected water quality data

Table Wq03. Selected water quality data for the Eleven Point River near Bardley at gage station #07071500, water years 1972 and 1993 (USGS 1972, USGS 1993, MDNR 1994).
Parameter State Standard Water Year
I III VI VII 1972 1993
Temperature (oF) 68.0Max - - - 48.2-65.3 48.2-65.3
Specific Conductance (us/cm3) - - - - 268-395 191-349
pH 6.5-9.0 7.7-7.9 7.2-8.2
Oxygen, dissolved (mg/L) 5.0 - - - 7.3-9.7 8.4-11.6
Coliform, fecal (colonies / 100 ml) - - 200 - 14-62 2-2300
Streptococci, fecal (colonies / 100 ml) - - - - 32-430 30-k13005
Alkalinity1 (mg/L as CaCO3) - - - - 128-190 94-174
Nitrogen, Total Ammonia (mg/L as N) 1.17-1.752 - - - 0.01-0.07 0.01-0.05
Phosophorus, Total3 (mg/L as P) - - - - 0.01-0.29 0.02-0.07
Manganese, dissolved (ug/L as Mn) - 50 - 50 30-40 2-8
Fluoride, dissolved (mg/L as F) - 4 - 4 0.10 0.10
Iron, dissolved (ug/L as Fe) 1000 300 - 300 20-110 3-10

I Protection of aquatic life

III Drinking water supply

V Livestock and Wildlife Watering

VI Whole-body-contact recreation

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

1 State standard for alkalinity currently unavailable. The Environmental Protection Agency currently recommends a minimum of 20.0 mg/L (USEPA 1999.

2 Based on minimum chronic and acute standards for limited 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).

Key Messages: 
Conservation pays by enriching our economy and quality of life.