How do you know water is healthy?. Water Quality Standards  Rules set by the Environmental Protection Agency (EPA)  Clean Water Act of 1972 – set laws.

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Presentation transcript:

How do you know water is healthy?

Water Quality Standards  Rules set by the Environmental Protection Agency (EPA)  Clean Water Act of 1972 – set laws into place

Temperature Water warmer than 35°C (95°F) is bad for wildlife. Colder = Better

Turbidity Water should be clear Higher turbidity means too much runoff or algae Under 25 for Salt Under 50 for Fresh

Dissolved Oxygen  Oxygen is needed to survive underwater  Less than 5 ppm is dangerous

pH  pH should stay between 5 and 9

Other Nutrients  Nitrates – No more than 1 ppm  Phosphates – No more than ppm