Keith wrote:
"Further, you would not believe the frequency with which the beaches on
Lake St. Clair are closed due to high levels of E. coli found in the
water. There does not appear to be any rhyme or reason for this since the
highest number of beach closings occurred during periods of extended
drought. The largest contributing source of the contamination is the
subject of much debate but the likely cause is feces from waterfowl."
In the Duluth/Supeior harbor, there are frequent solemn warnings about
water contamination and "beach" closings. What we have rather learned is
that invariably the pollution is goose or sea gull feces and the
"beaches" are places in the harbor where nobody ever swims. And as Keith
noted, it usually is not anytime near a heavy rain storm. But I guess
such dire warnings gives justification for the pollution control agencies
to justify their budgets. In our fair city, muchas millions have already
been spent trying to eliminate rain water runoff from getting into the
sanitary system. It has almost become a second economy around here
building the diversion/holding tanks. We usually find the waters of Lake
Superior shortly offshore to be sparkling clear, yet we constantly hear
about how polluted the lakes are. Again, it seems that agencies are
trying to justify their budgets.
On a related note, the topography of Duluth is of high hills rising above
Lake Superior. According, it is an everyday occurence to see substantial
stretches of the lake from an altitude of about 800 feet. The REAL
pollution of Lake Superior locally comes after a heavy rain when the
Nemadgi River in Wisconsin dumps bazillions of gallons of literally brown
water into the lake. From the heights, it is very visible. Whereas the
main lake is blue, the waters on the Wisconsin side are brown, carrying
who knows what in its runoff.
David Sorenson
Duluth, MN
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David H Sorenson davidsorenson@juno.com writes:
On a related note, the topography of Duluth is of high hills rising above
Lake Superior. According, it is an everyday occurence to see substantial
stretches of the lake from an altitude of about 800 feet. The REAL
pollution of Lake Superior locally comes after a heavy rain when the
Nemadgi River in Wisconsin dumps bazillions of gallons of literally brown
water into the lake. From the heights, it is very visible. Whereas the
main lake is blue, the waters on the Wisconsin side are brown, carrying
who knows what in its runoff.
For what it's worth, this is typically suspended silt, not pollution. While
suspended silt is harmful in certain fish populations, it's not necessarily
harmful to humans. Unlike the E Coli we carry in our gut, which most
definitely is harmful to humans.
Scott Welch
Product Manager, Open Text Collaboration Solutions Group
www.firstclass.com
"Things turn out best for people who make the best of the way things turn
out." - John Wooden