*'''''Duffins Creek''''': (Peak concentration of ''~3,000 mg/L'') - 25 times the CWQG limit for chronic effects & ~5 times the CWQG limit for acute effects of aquatic organisms.<br> | *'''''Duffins Creek''''': (Peak concentration of ''~3,000 mg/L'') - 25 times the CWQG limit for chronic effects & ~5 times the CWQG limit for acute effects of aquatic organisms.<br> |