Bois Brule River at STH 13
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Water Quality
Updated Apr 15, 2026Measures water acidity or alkalinity on a scale of 0-14. Neutral is 7. Most fish thrive in 6.5-8.5 range.
Common fecal coliform bacteria indicating possible sewage contamination. EPA recreational limit: <126 MPN/100mL.
Water temperature directly affects fish metabolism and activity. Optimal range varies by species.
Amount of oxygen dissolved in water. Essential for fish survival. 6+ mg/L is ideal for most fish species.
Measures water cloudiness caused by suspended particles. Lower values indicate clearer water. <25 NTU is good.
Measures dissolved ions and minerals in water. Indicates salinity and pollution levels. Freshwater: 100-500 µS/cm.
Conductivity (µS/cm) - a monitoring measurement reported by this station. Contact local authorities for specific safety guidelines.