water pollution

EPA website

Two of Michigan's "Areas of Concern," heavily polluted sites around the Great Lakes region, have seen recent progress in terms of cleanup. This according to state environmental regulators.

The Associated Press reports:

The U.S. and Canada designated 43 toxic hot spots in the region in the late 1980s. Among them are Muskegon Lake and the Upper Peninsula's Deer Lake.

Among the problems that put Deer Lake on the list were deformities or reproductive problems for wildlife. Another was excessive algae.

DETROIT (AP) - A report from the U.S. Department of Agriculture says farmers are cutting back significantly on the amount of soil and nutrients eroding from fields to the Great Lakes and neighboring waterways.    

The study estimates that methods such as no-till cultivation have cut in half the volume of sediments entering rivers and streams in the region, while phosphorus and nitrogen runoff are down by more than one-third.

Nutrients from farms and municipal waste treatment plants are believed to be one cause of rampant algae growth in the Great Lakes in recent years.

The study is based on a survey of farmers between 2003 and 2006.

Andy Buchsbaum of the National Wildlife Federation says the report shows progress is being made, but says more must be done to fix the algae problem.

State of MI

The Environmental Protection Agency says most of the oil still remaining from a July 2010 pipeline leak in
West Michigan sits on the floor of the Kalamazoo River and along about 200 riverbank sites.
    

EPA on-scene coordinator Ralph Dollhopf tells the Battle Creek Enquirer that cleanup work has yet to be done on those riverbanks near Marshall, about 60 miles southeast of Grand Rapids.
    

Lisa Williams / United States Fish and Wildlife Service

The Tittabawassee River has flooded three times already this year. Each time floodwaters carry dirt from the bottom of the river all over yards, basements, fields and parks.

This sediment is contaminated with Dioxin from Dow chemical’s plant in Midland. Dioxin has been linked to a host of health problems including cancer.

Photo courtesy of Michigan Sea Grant

New research finds that fish in the Great Lakes are contaminated with a chemical used in aircraft hydraulic fluids.

Researcher Amila DeSilva works for Environment Canada, which is like the EPA in the U.S.

She says there have been studies on a number of perflourinated chemicals. They’re used to make textiles, upholstery, paper, and many other things. Studies have shown these types of chemicals can have toxic effects in humans. But not much is known about a chemical called perfluoroethylcyclohexanesulfonate - or PFECHS for short.

DeSilva says no one has really studied whether it's toxic.

She wanted to see if PFECHS was in the environment, so she and her colleagues sampled water and fish in the Great Lakes, specifically lake trout and walleye:

“We were really, really surprised to find it in fish. Because, just based on the structure and our chemical intuition we thought, ‘okay, it would be more likely to be in water than in fish’ so when we found it in fish, when you find anything in fish, it’s a whole other ballgame because humans consume fish.”

DeSilva says other perflourinated acids are endocrine disruptors. That means they create hormone imbalances in humans, and they have other toxic effects. She says once these chemicals are released into the environment they don’t degrade, they just build up. That’s why use of some chemicals in this class is highly restricted in the U.S. and Canada.

(USGS)

Large factory farms have lost a major court case in the Michigan Court of Appeals. The case involves farming operations with hundreds, sometimes thousands of animals. They are often called CAFOs, or Concentrated Animal Feeding Operations.

The appellate court upheld a lower court ruling that the state could require large confined animal feeding operations to get pollution discharge permits before opening. Farm groups challenged the state rule insisting they should only need a permit after releasing manure causing water pollution.  But today, the three judge panel disagreed:

We conclude that the DEQ was fully authorized to require CAFOs to either (1) seek and obtain an (federal) permit (irrespective of whether they actually discharge pollutants), or (2) satisfactorily demonstrate that they have no potential to discharge.  The circuit court  properly denied plaintiffs’ motion for summary disposition and granted summary disposition in favor of the DEQ.

Ann Wiowode  is the director of the Michigan chapter of the Sierra Club. She welcomes this week’s ruling. 

 “That is essential in insuring they’re not allowed to begin operation and potentially pollute the water  without going through proper review.”

But while she welcomes the decision, Wiowode says more work is needed to protect Michigan from water pollution connected to agriculture. 

 “We think the regulations are still too weak.  And based on our experience, the permits themselves have many things that could be improved.”   

The Michigan Farm Bureau expressed disappointment with the decision.

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