Table 9. A summary of water quality data collected in the Troublesome creel watershed during 1975-1976 (from SCS 1977) and 1988-1992 (MDC).
Parameter 1975-1976 (Range) 1988-1992 (Range)
Temperature (F) 54 - 90.5 35 - 88
Dissolved Oxygen (mg/L 02) 1.4-12.4 3-18
pH 6.3-8.4 7.0-9.8
Specific Conductance (mhos/cm) 160-700 118-678
Turbidity (JTU) 3-150 <5-930
Total Alkalinity (mg/L CaCo3) 54-284 34-289
Hardness (mg/L CaCo3) 90-269 68-374
Total Solids (mg/L) 225-628
Dissolved Solids (mg/L) 2-626
Suspended Solids (mg/L) 2-439
Secci (inches) 2-36
Total Coliform (No./100 ml) 50-4700
Fecal Colifrom (No./100 ml) 10-15000
Fecal Strep. (No./100 ml) 75-12000
FC/FS 0.04-16.20
Total Phosphate(mg/L PO4-P 0.01
Total Nitrogen(mg/L N) 0.20-5.35
Ammonia (mg/L NH3-N) <0.05-1.40 0-2.5
Nitrate (mg/L NO3-N) 0.05-2.47
Nitrite (mg/L NO2-N) <0.005-0.590
Kjeidahl Nitrogen (mg/L N) 0.17-2.71
Total Iron (g/L Fe) 200-6,500
Alsrin (ng/L) <0.5-4.55
Dieldrin (ng/L) 0.9-140
Endrin (ng/L) <0.25-<10
a-BHC (ng/L) <0.31-108
B-BHC (ng/L) <0.78-<3.0
Lindane, Y-BHC <0.50-20.0
Total BHC Fraction (ng/L) <1.60-112

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