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EPA Proposed Standard to Protect Aquatic Ecosystems
As required by the Clean Water Act and pursuant to a settlement agreement, the U.S. Environmental Protection Agency (EPA) is proposing for public comment standards to protect billions of fish and other aquatic organisms drawn each year into cooling water systems at large power plants and factories. The proposal, based on Section 316(b) of the Clean Water Act, would establish a common sense framework, putting a premium on public input and flexibility.

Some of the standards include:

• Fish Impingement
     Being pinned against screens or other parts of a cooling water intake structure
• Fish Entrainment
     Being drawn into cooling water systems and affected by heat, chemicals, or physical stress.

 
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Gender-bending Chemicals in Water Supply - Researchers from the University of Calgary sampled populations of longnose dace, a silvery minnow, in Alberta’s Oldman and Bow Rivers. The Bow River flows through downtown Calgary and supplies its drinking water. Samples were taken back to the lab and dissected for further analysis and biologists then noticed that the random catch was overwhelmingly female.


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