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Great Lakes Pollution – Saginaw Bay Muck is Poop

Ed Note: This post on Great Lakes Pollution was originally published in 2012. It’s one of the most viewed and searched for on ThumbWind.  With budget cuts on the EPA by the current administration it’s feared that the Great Lakes and Saginaw Bay will once again experience muck and fecal encrusted beaches.

Feces on Great Lakes Beaches

Great Lakes Pollution

We were trying to think of a tactful headline for this piece but decided cut to the chase. Huron County lakefront owners have known for years that the declining water quality in Saginaw Bay is due to two factors. 1) Outdated and failing septic tanks and overflow from Saginaw and Bay City from the Saginaw River. 2) Concentrated Animal Feeding Operations CAFOs. Now we have actual experts that confirmed local suspicions of what exactly is in the muck that has been appearing on beaches.

Michigan Universities Research Great Lakes Pollution

Micro Plastic
Pixabay/efes/CC0

At a Saginaw Bay Watershed Conference held at Saginaw Valley State University in 2012 , Marc Werhougstraete, a Michigan State University Department of Fisheries and Wildlife research assistant, said muck means sewage and fecal matter are likely present. It was the most straightforward answer given to lakefront owners, civic leaders and concerned citizens in years.

The dark smelly blue green muck is composed of different types of algae, macrophytes and decomposing organic matter that varies from season to season. In research Werhougstraete conducted at the Bay City State Recreation Area, he found both human and bovine feces (poop) in the muck.


So…The Muck on the Beach is Poop

Great Lakes Pollution
Sunset on Saginaw Bay

His advice was if you see the muck on the beach, think “poop”. Don’t go into the water and don’t let your kids play in the wet sand. “To reduce risk of contracting illness”, said Werhougstraete,  “avoid contact with muck, wash hands when in contact with it and do not submerge your head in the water.”

Common muck management, such as raking, also can release the pathogens from the muck. People cleaning beaches should do so in the morning, when the beaches are less busy and the sun can kill bacteria, Werhougstraete said.


Evidence of Great Lakes Pollution Seen from Space

Algae Bloom Saginaw Bay

The algae and muck have gotten so bad in recent years it now compares with the situation Lake Erie faced in the 1960s. Focus on Great Lakes pollution is now such a concern that NASA released pictures shot from the space station that showed the full algae bloom in 2011.


Research on Great Lakes Pollution

Other Stories on Great Lakes Pollution

Featured image from  NOAA Great Lakes Environmental Research


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Mike Hardy

Author of a fun loving and event blog covering topics of the Upper Thumb of Michigan , the wind energy capital of the Great Lakes. Offering great trove of information on Wind Energy, Cheeseburger in Caseville, Saginaw Bay, Sailing.

4 Responses

  1. Bob Siver says:

    It’s been my experience that lakefront property owners are those most likely to deny the role that inadequate septic systems play in polluting Saginaw Bay. They’re quick to blame (correctly, in my opinion) overflow from Bay City and farm run-off (via tiled fields and county drains), but are loathe to accept their own responsibility.

    • ThumbWind says:

      Bob…You make an excellent point however it’s a numbers game. Honestly there just is not enough year around “lake front owners” that would generate the tonnage of feces that is currently floating out in the Bay. Plus how do you explain the Bovine manure? In my 50 years, I’ve never seen a cow on the beach….but I’ve seen their crap going down the Pinnebog river from the Danish CAFOs.

      • Bob Siver says:

        I didn’t mean to suggest that lakefront homes with inadequate septic systems
        were the primary cause, but they certainly are a cause, and it doesn’t seem unreasonable that before pointing fingers at others (however justified) one gets their own affairs in order. However, as I wrote, there seems to be a reluctance to admit that they are a part of the problem.
        You’re correct in writing that there are relatively few homes occupied year ’round. On the other hand, it’s May-September, when the water is warmer and therefore more conducive to algal growth and homes are filled with families and friends flushing toilets dozens of times/day, that inadequate systems are experiencing a demand they aren’t up to handling.
        I thought I explained the bovine manure. It’s spread on tiled fields, then rain washes it into the drains which lead to the river and ultimately the lake.
        By the way, I hadn’t seen a cow on the beach either, until my wife and I were in Northern Ireland last September. We were driving a very picturesque road overlooking the North Channel of the Irish Sea when several hundred feet below us we saw a small herd of cattle walking down the beach. It wasn’t long after that we had to stop the car because of a larger herd of sheep crossing the road- I think they stage those events for American tourists.

  1. May 16, 2012

    […] The news comes just has tourist season begins in the Upper Thumb. This report comes on the heels of earlier story’s at ThumbWind of Algae Blooms that can be seen from space and the problem of muck in Saginaw Bay. […]

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