Table 10. Selected water quality data for the Bourbeuse River Watershed at Lat. 38E25'55", Long. 91E01'11, Union, Franklin County, Hydrologic Unit #07140103, Gage station #07016400 for water years 1964, 1973, 1984, 1996 (USGS 1963-96; MDNR WQ Code of Regulations 10 CSR 20.7).
Parameter State Standard of Uses Water Year
I III VI VII 1964 1973 1984 1996
Water Temperture (oC) 32.2o Max1 28.9o Max2 0-27E 0-27.5E 0.5-27E 2.0-27.5E
Specific Conductance (us/cm) 165-360 131-310 76-295 152-340
O2, Dissolved (mg/l) 51,62 6-12.9 6-10.9 4.4-14.2 6.7-13.2
pH 3* 7.2-8.4 7.3-8.1 7.3-8.0 7.3-8.6
Hardness, Total (mg/l CaCO3) 62-180 54-140 84-150 71-120
Calcium, Dissolved (mg/l as Ca) 14-36 11-28 17-29 14-26
Magnesium, Dissolved (mg/l as Mg) 6.6-23 6.4-17 11-19 8.8-17
Fluoride, Dissolved (mg/l as Fl) 4 4 0.1-0.2 <0.1-0.6 <0.1-0.1
Sulfate, Dissolved (mg/l as SO4) 250 13-28 14-21 14-24 13-20
Nitrogen, Total Ammonia (mg/l as NH4) <0.01-0.2 0.0-0.1 0.0-0.1
Nitrate-N (mg/l N) 10 10 0.1-0.4 0.0-1.0 <0.02-0.5
Phosphorus, Total P (mg/l as PO4) 0.0-0.2 0.0-0.4 <0.02-0.1
Coliform, Fecal (colonies/100ml) 200 6-1100 7-400
Streptococci, Fecal (colonies/100ml) 1-2000
Iron Dissolved (mg/l FE) 50-350 15-120 20-180

I: Protection of aquatic life.

III: Drinking water supply.

VI: Whole-body-contact recreation.

VII: Groundwater.

1For warm-water fisheries.

2For cold-water fisheries.

3H2O contaminants should not cause pH to fall out of 6.5-9.0 range.

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