Ten Threats: Sewage in the Lakes

  • Workers build Toledo's wet weather treatment system. The system is expected to go online next fall. It will treat water in the event of a storm. (Photo by Mark Brush)

Point source pollution means just that. It’s pollution that comes from a
single point; usually out the end of a pipe. It’s easy to identify. Since
the passage of the Clean Water Act more than 30 years ago, most of that kind
of pollution has been cleaned up, but today, there are still some pipes dumping
pollution into lakes and rivers, but Mark Brush reports stopping that remaining
pollution isn’t that easy:

Transcript

We’re continuing our look at Ten Threats to the Great Lakes. Lester Graham
is our guide through the series. He says the next report is part of coverage
of a threat called point source pollution.


Point source pollution means just that. It’s pollution that comes from a
single point; usually out the end of a pipe. It’s easy to identify. Since
the passage of the Clean Water Act more than 30 years ago, most of that kind
of pollution has been cleaned up, but today, there are still some pipes dumping
pollution into lakes and rivers, but Mark Brush reports stopping that remaining
pollution isn’t that easy:


(Sound of the Maumee)


We’re on the banks of the Maumee River near Toledo, Ohio. Sandy Binh
brought us here to describe what she saw in the river several years ago when
she was out boating with some friends.


“When there was a heavy rain maybe five years or so ago this is where we saw
a sea of raw sewage in this whole area. It was like, I mean it was like chunks
everywhere. It was just disgusting.”


Binh reported it and found that the city couldn’t do anything about it. That’s
because Toledo’s sewage treatment plant is at the end of what’s called a combined
sewer system. These systems carry both storm water from city streets, and raw
sewage from homes and businesses. If too much water comes into the plant, a
switch is flipped, and the sewage goes straight into the river.


(Sound of treatment plant)


Steve Hallett manages engineering at the wastewater treatment plant for the
city of Toledo. He says a rainstorm can bring twice as much water as the
plant can handle.


“And when hydraulically you can only take about 200 million of it – where’s
the other 200 hundred million go?”


“Where does it go?”


“Uh, it’s by-passed. Limited treatment possibly and then it would be
by-passed to the Maumee River”


Toledo is not alone. More than seven hundred cities across the country have
combined sewer systems that often overflow, cities such as Milwaukee,
Detroit, Buffalo, Chicago, and Cleveland. Every year billions of gallons of
raw sewage are dumped into the Lakes from cities with these old combined systems.


The sewage can cause problems for the environment, but the biggest concern
is that people might get sick. Some of the bugs found in sewage can cause
liver problems, heart disease, and can even cause death.


Dr. Joan Rose is a microbiologist with Michigan State University. She’s
been studying sewage in water for more than 20 years. She says sewage
contains viruses and other nasty microorganisms that can hang around in the
environment.


“Up here in the Great Lakes region with the cool temperatures we have –
these organisms can survive for months, and also these organisms
accumulate.”


Rose says what’s unique about the microorganisms in sewage is that it only
takes a few of them to cause diseases in humans, and once contracted they
can be contagious.


The Ohio EPA sued the city of Toledo. It wanted the city to clean up its
act. After a long battle, the city and the state reached a settlement, and
officials agreed to spend more than 450 million dollars to try to do
something about the problem.


(Sound of construction)


Back at the wastewater treatment plant we’re standing on the edge of a deep
pit. Down at the bottom sparks are flying as welders climb over towers of
green rebar. They’re building a new system that’s designed to treat water
quickly when there’s a heavy rainstorm. The water won’t be fully treated,
but the solids will be settled out and the water will be chlorinated before it’s
released into the river. It’s a compromise the city and the state EPA agreed
upon.


Steve Hallett says to fully treat every drop of water that comes to the
treatment plant in a big storm would require a project four times this size.


“You’d need massive amounts of storage to hold every drop here. You know, that’s
extremely costly and I think, uh, is deemed not feasible.”


Toledo’s project will mostly be paid for by a steady hike in water and sewer
rates over the next fifteen years. The increase was approved by voters
three years agom, and officials plan to go after federal grants and loans
to help defray the costs, but federal dollars are getting scarce. Big cuts
have been made to the federal low interest loan program many cities use to
finance these projects.


The demand for financing is likely to increase. The cost of upgrading the
nation’s combined sewer systems will cost hundreds of billions of dollars.
The question is, who will pay to stop one of the biggest sources of water
pollution left in the country?


For the GLRC, I’m Mark Brush.

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Ten Threats: Chemical Valley Spills

  • Sarnia, Ontario's shoreline with Lake Huron. (Courtesy of the EPA)

Most people think the days of industry polluting rivers and lakes are past, but that’s
just not the case. There’s a lot less pollution spewing out of factory pipes, but there
are still some real problem areas. Rick Pluta reports on how one of those areas is not
in the U.S., it’s in Canada, but the pollution ends up in the Great Lakes:

Transcript

Here’s the next report in our series Ten Threats to the Great Lakes. The series
guide is Lester Graham. He says our next piece reveals we still have a long way to
eliminate pollution in the lakes.


Most people think the days of industry polluting rivers and lakes are past, but that’s
just not the case. There’s a lot less pollution spewing out of factory pipes, but there
are still some real problem areas. Rick Pluta reports on how one of those areas is not
in the U.S., it’s in Canada, but the pollution ends up in the Great Lakes:


North of Detroit, just across the border from Michigan is Canada’s Chemical Valley. It’s a
complex of dozens of petro-chemical factories that employ thousands of people near Sarnia,
Ontario. Chemical Valley is the center of the economy here, but it also has a major
environmental effect on the Great Lakes.


That’s because Chemical Valley sits on the Saint Clair River, one of the rivers that connects
Lake Huron to Lake Erie. What happens on the Saint Clair River affects thousands of people who
downstream from the plants. Chemical spills from Sarnia have polluted the shorelines of both
countries.


Jim Brophy is the director of a health clinic for people who work in the sprawling complex of
factories on the Canadian side of the Saint Clair River. Brophy says he’s seen people suffering
and lives shortened by cancer, respiratory failure, and neurological disorders.


“It’s an unbelievable tragedy because these diseases are all completely preventable, but arose
both because of government and industry negligence over the course of 30 or 40 years, or even
longer.”


Brophy says many of those health problems are also being exported downstream to other
communities.


The Aamjiwnaang tribe makes its home right next to the Chemical Valley complex. A recent
study of Aamjiwnaang birth records found that, in the last decade, instead of births being about
half girls and half boys, only one-third of the babies born on the reservation were boys. Shifts in
reproduction patterns often serve as a signal of an environmental imbalance.


Jim Brophy says that suggests the impact of Sarnia’s chemical industry on the environment and
people deserves more attention.


“We cannot put a particular exposure from a particular place and link that at this point, but what
we are putting together are pieces of a puzzle, and I think that’s becoming a major concern not
just for our community and not just for the American community on the other side of the river,
but I think for people all along the Great Lakes.”


Environmental regulators agree. The province of Ontario recently ordered 11 facilities to clean up
their operations so there are fewer spills and emissions. Although the provincial government has
little power to enforce those orders, officials say it’s a step in the right direction.


Dennis Schornack is the U.S. chair of the International Joint Commission. The IJC looks to
resolve disputes and solve problems in the Great Lakes international waters. He says that, since
World War II, Chemical Valley has changed the character of the Saint Clair River.


“We really have to watch this for drinking water – that’s the main thing. Canada does not draw its
drinking water from the river and the U.S. does.”


So communities on the U.S. side have to deal with chemical spills and other pollution in their
drinking water, but they have no control over the polluters on the other side of the border.


Peter Cobb is a plant manager who sits on the board of the Sarnia-Lambton Environmental
Association. That’s a consortium of Sarnia petro-chemical operations. He says the problem is
spills into the Saint Clair River peaked in the 1980s, when there were roughly 100 spills a year.
He says now that’s down to five to 10 spills a year.


“We have made significant progress. Having said that, our target remains zero spills per year,
and industry is well aware that our current performance does not meet our own target as well as
the expectations of the public.”


Cobb also acknowledges there have been some major setbacks in the last couple of years. Some
big spills have forced downstream communities to once again stop taking their drinking water
from the Saint Clair River. Cobb says Chemical Valley will try to do better.


For the GLRC, this is Rick Pluta.

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New Mining Operation Worries Neighbors

  • Resistance to the proposed sulfide mine project is strong in Big Bay, Michigan. It's the largest town (population 500) near the area. (Photo by Chris McCarus)

A multinational mining company is planning to mine for nickel near the shore of Lake Superior. But some mining experts and the community don’t want the mine to be built. They say there’s no way to make sure the mine won’t damage the environment. The Great Lakes Radio Consortium’s Chris McCarus reports:

Transcript

A multinational mining company is planning to mine for nickel near the shore of Lake Superior. But some mining experts and the community don’t want the mine to be built. They say there’s no way to make sure the mine won’t damage the environment. The Great Lakes Radio Consortium’s Chris McCarus reports.


The price of nickel has tripled in recent years. It’s needed for electronic produces such as computers. It’s used to produce cars. And nickel is even used in air pollution control equipment. If it’s approved, this would be North America’s only active nickel mine.


Kennecott Minerals Corporation says it’ll mean 120 jobs for local workers over a 10-year period. The state of Michigan has been lagging behind the rest of the nation in job recovery and in the northern reaches of the state good jobs are really hard to find.


The mine will cost 100 million dollars to set up. But the value of the nickel ore in the ground is somewhere between one and three billion dollars. So the company could make hundreds of millions in profit.


Scientists and activists say that this nickel mine could be even worse than the iron and copper mines of the past.


That’s because it would require mining through sulfide minerals. When they mix with water and oxygen, they can become sulfuric acid, just like battery acid. The industry calls the problem acid mine drainage. It can kill fish and wildlife and pollute water.


Michelle Halle is a lawyer for the National
Wildlife Federation and a local resident. She’s got one question.


“I’m always interested in the answer to the question about whether he believes that a mine can exist with 100% perfect track record.”


It’s a rhetorical question. She’s confident that the company won’t be able to meet the newer, stricter standards for getting a permit to mine.


“No human error, no design flaws, no natural disasters that are going to cause an impact… I don’t think that any company can say yes to that honestly.”


The mining company says there’s always some risk. John Cherry works for Kennecott Minerals Corporation. Cherry insists the company’s design is the best, and the safest. Although he says it’s impossible to guarantee against accidents at the mine.


“We can get in a crash on the way home today too. You design it with a safety factor built into your design. You have a very robust design. That’s your first step. You make your system as structurally competent as you can. Make it as bulletproof as you can.”


Cherry says the next steps are to install a monitoring system to detect the smallest problems. And if there are any problems, the mine will have a contingency plan with the right materials and properly trained people on hand.


State law requires the company to pay all of its accident insurance up front. They can’t just pay in installments. That way, the company will pay to clean up any mess, not the state or the community. Minnesota has a similar law. And In Wisconsin, People Against Mining got the state to establish a moratorium on sulfide mining


David Chambers used to work as a geologist for a mining company. And now he works for the Center for Science in Public Participation. He says, at the nickel mine planned in Michigan, groundwater contamination is possible and would be dangerous.


“Probably the most likely event is an accidental release from the mine. All mines have problems. It’s likely that somebody won’t turn a valve the right way or a big storm comes and there’s an overflow.”


Chambers says a mine collapse would be the most destructive. But, he says, even for the accidents that will not devastate the environment, the company and the community should plan, because they will happen.


(Sound of trucks)


On the road leading into the wilderness area where the mine would operate, local road crews are doing routine maintenance. Right now, most people who use the road are hikers, kayakers and fishermen. The pristine waters of Lake Superior and surrounding lakes and streams attract them here.


Kristy Mills is a store owner. She thinks a sulfide mine would only mean heavier traffic of trucks carrying away nickel ore. She says it wouldn’t bring in the tourist dollars the area needs.


“We don’t like to see that kind of growth. I think it’s a poor way of investing into our future. You know, we need to encourage tourism and visitation, not mining and hauling ore around in big trucks. It’s gonna be interesting.”


Many local residents and environmental activists feel the area should have learned lessons from the region’s past mining heritage. The precious ore is removed. People somewhere else get rich. And the legacy of pollution is all that remains when the mines are closed. So now, they’re hoping if it comes, this mine will be different.


For the GLRC, I’m Chris McCarus.

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Dilemmas for Wastewater Treatment Plants

  • Water contamination from sources that might include some wastewater treatment plants closes some beaches. (Photo by Lester Graham)

Municipal sewer plants are sometimes blamed for high E. coli bacteria counts that close beaches to swimmers. Some cities are working to find better ways to treat the water and put it back into nature. The Great Lakes Radio Consortium’s Chris McCarus reports:

Transcript

Municipal sewer plants are sometimes blamed for high E. coli bacteria counts
that close beaches to swimmers. Some cities are working to find better ways to treat the
water and put it back into nature. The Great Lakes Radio Consortium’s Chris McCarus
reports:


(sound of cars moving along a small street and a few people talking)


A typical summer day by the lake: SUVs pull boats on trailers. People saunter from an
ice cream shop to the city beach. Jet skis and water skiiers slice through the waves.
Carpenters raise trusses on homes being built into the remaining lakefront lots.


Just a few years ago it seemed towns like this were just for loggers and locals. But now
people are flocking to the lakes around the Midwest and staying there. And that’s putting
a strain on local sewer plants.


(sound of machines inside the water treatment plant)


For 40 years, the treated waste water from the Boyne City, Michigan sewer plant has
been released into the big lake it was built on…Lake Charlevoix.


“It’s located right adjacent to a public swimming beach, park, marina and some valuable
waterfront property. We are only a block off the downtown district.”


Plant manager Dan Meads wants to stop mixing the end product with the water where
tourists and the locals swim and play. He tests daily for E. coli bacteria. He
doesn’t want anyone getting sick. But it’s still a concern, and there are other concerns.


In recent years, the United States Geological Survey has reported on new kinds of
contaminants that they’ve found in ground and surface water. The USGS says treated
wastewater from sewer plants can contain hormones from birth control pills, antibiotics,
detergents, fire retardants, and pesticides.


USGS microbiologist Sheridan Haack says the effects of all these compounds are still
unknown. Most are found in tiny quantities, but combined they could cause any number
of chemical reactions.


“There are many different chemical structures and it would be very difficult to state for
all of them what we would actually expect the environmental fate to be and how they
would actually be transported through the environment.”


Haack says the medicines people take don’t disappear. They eventually leave the body
and are flushed down the toilet. Those drugs have been tested for safe human
consumption, but the question is: what happens when those chemicals are mixed in with
industrial waste, accidental spills and nature’s own chemical processes? Haack says they
just might come back around to hurt humans, fish and wildlife.


The Boyne City solution is to build a new wastewater treatment plant two miles from the
beaches up the Boyne River. Officials say contaminants will be diluted by the time they
flow back down into Lake Charlevoix.


(sound of the Boyne River)


Larry Maltby volunteers for a group called “Friends of the Boyne River.” The group
doesn’t like the city’s plan to discharge treated wastewater directly into the river. It wants
them to consider some non-traditional methods. They say the new sewer plant could run
a pipe under a golf course or spray the treated water on farm fields… or let it drain into
wetlands to let nature filter it out.


“It will seep into the soils which are very sandy and gravelly underneath the golf course
and then the filtration through the ground will have a great deal of effect of continuing to
purify that water. Much more so than it would be with a direct deposit, straight into the
surface waters of Michigan.”


Lawyers for the Friends of the Boyne River have appealed to the state dept of
environmental quality and filed a lawsuit.


But wastewater treatment plant manager Dan Meads says the city doesn’t want to please
just one group and end up angering another…


“There isn’t any guarantee that you can satisfy everybody. We think we have the best
option available.”


As municipalities are short on funds and personnel, they don’t want to wait for decades
for the perfect solution. Still, nobody wants any amount of pollution to affect their home
or their recreational area.


Sheridan Haack with the USGS won’t take either side in this dispute. She says not only
are the dangers from contaminants unknown, the best way to deal with them is unknown.


“I am not aware of any consensus in the scientific community on the nature or types of
treatment for this broad range of chemicals.”


In the meantime… communities such as Boyne City have the unenviable task of trying to
dispose of their residents sewage without polluting the beaches, the fishing, and the
environment that brought folks there in the first place.


For the Great Lakes Radio Consortium, I’m Chris McCarus.

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Combined Sewers Under Pressure (Part 1)

  • An overflow point in a combined sewer line. The overflow is designed to relieve pressure on an overburdened sewer system. Photo courtesy of the USEPA.

Over the last century, cities across the nation have built an intricate web of underground sewers. These sewers originally channeled waste directly into nearby streams, but with the advent of the environmental movement, and along with it, the Clean Water Act, treatment plants were built to clean the sewage before it reached the streams. Today, a growing population and a continuing boom in development has placed increasing pressure on our underground network of pipes. In the first of a two-part series, the Great Lakes Radio Consortium’s Mark Brush reports the aging systems are in need of help:

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Massive Sewer Projects Drain Funds (Part 2)

  • A new sewer line north of Detroit in the Clinton River watershed. The new interceptor-sewer is being built by Jay Dee contractors for the city of Detroit. Photo by Mark Brush.

Cities across the region are feeling more and more pressure to fix their aging sewer systems. Most of the cities in the Midwest have what’s called ‘combined’ sewer systems. That’s where sewage from homes and industries mixes together with water flowing off city streets after a rainstorm. The rush of water is often more than treatment plants can handle, and when that happens, the dirty water overflows into nearby streams or into people’s basements. In the second of a two-part series, the Great Lakes Radio Consortium’s Mark Brush reports that cities are trying to solve these enormous problems at a time when federal money is hard to find:

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