WATER MANAGEMENT
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WATER MANAGEMENT
Objectives
Identify and discuss the users of water.
List the types of water pollutants.
Discuss ways to treat water for use.
Explain the importance of planning for
future water needs.
Why?
Why do we need to know about the hydrologic
cycle?
Why is water so important?
Why do we need to know about different types of
pollutants?
Why do we need to know how to treat water?
Why should we try to conserve water?
What?
What is the hydrologic cycle?
What are different uses for water?
What are different types of pollutants?
What do we use to treat water?
What is water conservation?
Terms
Water: a colorless, transparent, naturally occurring compound made of hydrogen and oxygen. (H2O)
Hydrologic cycle: The water cycle Groundwater: The water beneath the
surface of the earth, found in spaces between rocks and soil particles.
Surface Water: Water on the earth’s surface. (Lakes, ponds, and streams)
Terms
Runoff Water: Water that runs on the earth’s surface.
Potable Water: Water that is appropriate for human consumption without further purification or boiling.
Aquifer: An underground stream or pool in sand or gravel layers.
Watershed: An area of land from which all the water that does not infiltrate the sol runs to a downhill location.
Users for Water
Agriculture
Urban
Industry
Agriculture Uses of Water
Animal feedlots Irrigation Cultivation
Pastures
Dairy farming Orchards Aquaculture
Forestry
Urban uses of Water
Carwashes
Laundry
Watering yards/plants
Showers/Baths
Industrial uses of Water
Pollutants from industrial sources include: Asbestos –carcinogenic. mesothelioma, lung cancer, intestinal cancer
and liver cancer. Lead –can cause health and environmental problems. It is a non-
biodegradable substance so is hard to clean up Mercury –non-biodegradable substance so is hard to clean
up ,mercury poisoning. Nitrates – The increased use of fertilizers means that nitrates are
more often being washed from the soil and into rivers and lakes. can cause eutrophication,
Phosphates - The increased use of fertilizers means that phosphates are more often being washed from the soil and into rivers and lakes. This can cause eutrophication
Sulphur – This is a non-metallic substance that is harmful for marine life.
Oils – Oil does not dissolve in waterThis can stop marine plants receiving enough light for photosynthesis. It is also harmful for fish and marine birds.
Types of Water Pollutants
Pesticides
Animal Waste
Sewage
Sediment
Water Conservation
Don’t let water run while brushing teeth.
Taking showers instead of baths.
Using rain water for watering plants
instead of drinkable water.
Fix dripping or leaking pipes and faucets.
Review
What is the hydrologic cycle?
What are different uses for water?
What are different types of pollutants?
What do we use to treat water?
What is water conservation?
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