Water Pollution

Water Pollution - http:/vodpod.com/watch/241729the-meatrix...

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http://vodpod.com/watch/241729- the-meatrix Water Pollution Water Video
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Why Do We Care About Water? Essential for Human Health Only 8/1000 of Fresh Water is Available Necessary for Key Economic Activities, e.g., Industry, Agriculture, Energy Recreational Uses, e.g. Swimming, Boating, Fishing Central to Environmental Security
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Why Do We Regulate Water Use? Access to Water Pollution/ Water Quality
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Access to Water in the US Prior Appropriation Rights Based on Time of Use US West, Arid Areas Riparian Zone Rights Based on Proximity to Water South, East, Wetter Areas
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Sources of Pollution: Point Sources: “any discernible, confined and discrete conveyance, including but not limited to any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated animal feeding operation, or vessel or other floating craft, from which pollutants are or may be discharged” 3 Main Categories: publicly owned treatment works, combined sewer systems, and industrial facilities Non-Point Sources: includes anything that is not a “point source” or not associated with a discrete point of discharge (land use!) E.g., farming, construction, and mining as well as urban runoff and spills of oil and hazardous waste
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Causes of Pollution Nutrients Bacteria Suspended/Settled Solids Thermal Pollution Habitat Modification Diminished Flow Other . . .
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The Federal Water Pollution Control Act of 1972, i.e. The Clean Water Act CWA : most comprehensive source of federal regulatory authority to control water pollution Goals: To “restore and maintain the chemical, physical, and biological integrity of the Nation‟s waters.” To attain a level of water quality that “provides for the protection and propagation of fish, shellfish, and wildlife, and provides for recreation in and on the water” by 1983 To make navigable waters free of pollutant discharges by 1985
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CWA Key Objectives
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Water Pollution - http:/vodpod.com/watch/241729the-meatrix...

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