Tag: sick

Sewage Blending Stirs Up Debate

  • Many environmentalists fear the practice of sewage blending would become more routine if a new EPA policy is enacted. (Photo by M. Vasquez)

Officials at the Environmental Protection Agency are considering a new policy for sewage treatment plants. Many environmentalists say if the policy is adopted, it will lead to increased water pollution and greater risk to public health. The Great Lakes Radio Consortium’s Mark Brush reports on the debate over sewage blending:

Transcript

Officials at the Environmental Protection Agency are considering a new policy for sewage treatment plants. Many environmentalists say if the policy is adopted, it will lead to increased water pollution and greater risk to public health. The Great Lakes Radio Consortium’s Mark Brush reports on the debate over sewage blending:


(sound of water in sewer)


Some sanitary sewers are tied in with storm sewers. So when there’s a big rainstorm, or when there’s a fast snowmelt, all that water can inundate some sewage treatment plants. To tackle this problem, some treatment plants have adopted a practice known as “blending.” The excess sewage is re-routed around the slower parts of the treatment plant. The dirty water is then mixed with the water that’s been cleaned. It’s sometimes given a shot of chlorine, and then released into creeks, rivers, and lakes.


Kurt Heise oversees the operation of a sewage treatment plant on the Detroit River. He says the practice of blending is necessary in order to keep the plant from being overwhelmed.


“When you have a wet weather event, an extreme wet weather event, if we were to allow all of that combined water in through the normal process the treatment process would be ruined.”


Sewage blending has been around for a long time. To plant operators, it’s a necessary step in handling large amounts of dirty water. But to some people, blending is not seen as a good option. They want the practice to stop.


Instead, they say, cities should invest in their systems to make sure they can fully treat all the water that comes to the plant. Kurt Heise says, if his plant were required to do this, it wouldn’t make sense economically.


“It would almost result in doubling the size of our plant and spending just untold amounts of dollars for an event only happens a few times a year.”


Sewage treatment plant operators say you have to weigh the costs and the benefits before spending hundreds of millions of dollars on expanding the treatment plants. The decision of whether or not to allow blending has been left up to state and local regulators. But recently, the U.S. Environmental Protection Agency has weighed in on the subject. And ever since they suggested new guidelines for allowing blending, environmentalists have been critical of their plan. Mike Shriberg is the Great Lakes advocate for the Public Interest Research Group. It’s an environmental consumer activist organization.


Shriberg says the draft blending policy, the way it’s written now, is too broad. And will allow the practice of blending to become routine.


“Our fear is that when you’ve got a treatment plant that uses blending, they’re never going to upgrade to full treatment sewage. And so if a treatment plant is allowed to blend they’re not going to go up to full treatment capacity they have no incentive to do that anymore. It’s sort of the cheap way out.”


Sewage treatment operators say blending is better than seeing the raw sewage overflow into waterways. And they say it’s better than spending large sums of money to fix a problem that only occurs a few times a year. But critics say the EPA doesn’t have a good handle on how often blending is used, and what kind of health risks are associated with the practice.


Some initial studies have been done on blended sewage and how it might affect public health. Joan Rose is a water microbiologist at Michigan State University. She’s written a report on the health risks associated with blended sewage.


“So what I found was that if people were actually swimming in the water and there was a discharge of a blended sewage upstream, that their risk of getting sick, actually getting sick with a virus or a parasite was about a hundred times greater – when there was a blended discharge as opposed to if the water was fully treated.”


Rose says some of these viruses, such as Hepatitis-A, are highly contagious. At this point, there are no good estimates on how many people get sick from blended sewage each year. It’s never been studied, so the impact of blending on public health is unclear. Ben Grumbles is the Assistant Administrator for water at the EPA. He says the EPA is considering the billions of dollars at stake in expanding the nation’s sewer treatment plants versus the risk to public health.


“What we’re trying to do is to clarify what’s legal and what isn’t legal and to recognize the economic realities that sewage teatment plants face across the country in terms of their infrastructure needs, but foremost and above all what leaves the facility has to meet Clean Water Act permit limits.”


But the Clean Water Act permit limits don’t measure all the viruses, bacteria, and parasites found in blended sewage. And so some environmentalists and scientists say meeting the limits doesn’t necessarily mean protecting public health. Grumbles says officials are still reviewing the tens of thousands of comments they received after releasing the draft blending policy.


He says he doesn’t know what the final rule will look like, or if they’ll issue a rule at all. One thing is likely, if the policy is finalized the way it’s written now, it’s expected that environmental groups will take the EPA to court.


For the Great Lakes Radio Consortium, I’m Mark Brush.

Related Links

Relief on the Horizon for Allergy Sufferers?

  • To those who may recoil in terror from this picture, relief from peanut allergies may just be a vaccine away. (Photo by Mike Froese)

A new vaccine that reduces food allergies in dogs could
some day help people who suffer dangerous reactions to food like
peanuts, milk and wheat. The vaccine is also more evidence in
support of the so-called “hygiene hypothesis.” The Great Lakes
Radio Consortium’s Tracy Samilton reports:

Transcript

A new vaccine that reduces food allergies in dogs could some day help people who suffer
dangerous reactions to food like peanuts, milk and wheat. The vaccine is also more
evidence in support of the so-called “hygiene hypothesis.” The Great Lakes Radio
Consortium’s Tracy Samilton reports:


Allergies to foods like peanuts have become much more common over the past 20 years.
Some researchers believe it’s because, as a hygiene-conscious society, we’re no
longer exposing our bodies to infections that stimulate the immune system and protect
us from allergies. Pediatrician Dale Umetsu of Stanford University mixed a component
of Listeria bacterium and peanuts into a vaccine. He then gave it to dogs
with allergies so severe that one peanut made them sick.


“After the treatment, the dogs could tolerate up, on average, to 30 to 40 peanuts,
so this was quite an increase and the effect lasted several months, at least,
after the treatment.”


Umetsu says it could be five years or more before a vaccine is available for human trials.
A vaccine could help millions of people with food allergies.


For the Great Lakes Radio Consortium, I’m Tracy Samilton.

Related Links

Epa Calculates Illnesses Caused by Sewage Overflows

Sewage overflows during heavy rains have long been implicated in illnesses in people. For the first time, the Environmental Protection Agency has come up with an estimate of just how many people are getting sick from swimming at contaminated beaches. The Great Lakes Radio Consortium’s Tracy Samilton reports:

Transcript

Sewage overflows during heavy rains have long been implicated in
illnesses in people. For the first time, the Environmental Protection
Agency has come up with an estimate of just how many people are getting
sick from swimming at contaminated beaches. The Great Lakes Radio
Consortium’s Tracy Samilton reports:


The EPA estimates that somewhere between 3,500 and 5,500 beachgoers get sick
every year when untreated sewage is flushed into rivers, streams and lakes
by heavy rains. The EPA’s Ben Grumbles says the report is another reason
for cities to fix their aging sewage systems – despite the high cost.


“And it can literally add up to hundreds of millions, a couple of billion dollars, for
very large cities, to fix the problem for the long-term.”


Grumbles says many communities can avoid that bigger expense by investing
in new technologies to better manage existing systems – and keeping pipes
well-maintained and free of debris.


Environmental groups say they hope legislators are listening. Congress just reduced
the fund from which communities can get loans for sewer projects by 500 million dollars.


For the Great Lakes Radio Consortium, I’m Tracy Samilton.

Related Links

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.

Related Links

Interview: Great Lakes Need Citizen Input

A recent report indicates many of the problems troubling the Great Lakes are due to poor governance of the lakes. The Great Lakes Radio Consortium’s Lester Graham talked with the chief author of the report, Restoring Greatness to Government: Protecting the Great Lakes in the 21st Century. Dave Dempsey is a policy advisor with the Michigan Environmental Council, which published the report:

Transcript

A recent report indicates many of the problems troubling the Great Lakes are due to poor
governance of the lakes. The Great Lakes Radio Consortium’s Lester Graham talked with the
chief author of the report Restoring Greatness to Government: Protecting the Great Lakes in
the 21st Century. Dave Dempsey is a policy advisor with the Michigan Environmental
Council, which published the report:


Dave Dempsey: “Well, we have sick Great Lakes in part because we have a sick governance
system. We have an array of 21st century problems facing the lakes from climate change to
continued degradation of some of our waters with toxic chemicals, but we have a 19th century
system of government that’s trying to protect them and failing.”


Lester Graham: “Now, the International Joint Commission, which is a body made up of
appointees by the Canadian government and the U.S. government, is to watch over the water
quality agreement and the treaty between the U.S. and Canada as to how we treat the Great Lakes.
And the Great Lakes Commission is another group that’s made up of representatives from the
eight Great Lakes states and the two provinces in Canada that surround the Great Lakes. And
these are all 21st century people, I know some of them, and they’re bright folks, they’re doing an
earnest and fairly decent job. What’s holding them back? They’re not 19th century people.”


DD: “No, but the structures and the systems they use are 19th century. There’s two problems: with
several of the commissions, they’ve become very politicized. The International Joint Commission
used to have a tradition of independence from political pressures and looking at the long-term
health of the Great Lakes. That’s been compromised since the ’90’s. But maybe more
importantly, with all these institutions, they’re relying on the old fashioned way of dealing with
public input. We think, in the environmental community, that the way to restore healthy Great
Lakes is to make sure the citizen voice is heard. These institutions cover a Great Lakes basin
that’s hundreds of thousands of square miles, and they’re expecting people to show up at public
hearings, perhaps traveling hundreds of miles to get there. Today, what we need to do is take
advantage in governance of the Internet, and other ways of involving people that don’t require
that kind of commitment or sacrifice because people frankly don’t have the time.”


LG: “How would increased participation of the public help the health of the Great Lakes?”


DD: “Well, looking at the history of the Great Lakes, every time the public voice is heard
strongly in the halls of government, the Great Lakes recover. Every time the voices of special
interests are drowning out the public voice, the lakes begin to deteriorate and that’s what we see
happening now.”


LG: “The Great Lakes Commission has had some success recently in getting more money from
the government for the Great Lakes recovery, the IJC has done a good job recently of working
with the media to bring public awareness to invasive species because of the Asian black carp. So,
are those moves the kind of thing you’d like to see to solve this problem?”


DD: “I think it’s helpful. Both of these commissions can use their bully pulpit to publicize
problems and call attention. But if you took a poll of the average Great Lakes residents, very few
of them would ever have heard of these commissions. We need bodies that look out for the Great
Lakes that are really plugged into individual communities, and that doesn’t exist right now. The
Great Lakes Commission specifically was set up to promote commercial navigation in the Great
Lakes, and while it has broadened its agenda to look at ecosystem issues, it has been an advocate,
for example, for the Great Lakes review of navigation that could result in more invasive species
coming into the Great Lakes by allowing more ocean-going vessels. We need an institution that’s
looking at the health of the Lakes first, not at the health of the industries that sometimes exploit
them.”


LG: “Bottom line, what would you like to see done?”


DD: “I’d like to see a Great Lakes citizens’ commission building on the existing institutions that
plugs into the individual states and provinces around the Great Lakes and brings people and their
voices together so that their vision of healthy Great Lakes can be carried out by government.”


Host Tag: Dave Dempsey is chief author of a report on governance of the Great Lakes issued by
the Michigan Environmental Council. He spoke with the Great Lakes Radio Consortium’s Lester
Graham.

Related Links

Epa to Re-Examine Impact of Sewage Sludge Fertilizer

The U.S. Environmental Protection Agency says it’s ready to take a new look at the science and risks involved in using treated human waste – sewage sludge – as fertilizer on farmland. That’s seen as good news for people who live near farms using sewage sludge. Some of them say the sludge makes them sick. The Great Lakes Radio Consortium’s Amy Tardif reports:

Transcript

The U.S. Environmental Protection Agency says it’s ready to take a new look at the science and
risks involved in using treated human waste – sewage sludge – as fertilizer on farmland. That’s
seen as good news for people who live near farms using sewage sludge. Some of them say the
sludge makes them sick. The Great Lakes Radio Consortium’s Amy Tardif reports:


About three million dry tons of treated sewage – called sludge – is used to fertilize sod, pasture
land and even food crops every year in the United States. As cities sprawl and people move into
rural areas they discover the practice. And many don’t like it.


“We were like what is that smell? This is sick. It makes you want to vomit. Your eyes start
burning and you want to get away from it as quick as you can.”


Molly Bowen is one of a group of homeowners suing the haulers who dump and landowners who
use sewage sludge near their neighborhood. People around the country have blamed the sludge
for causing illnesses and even deaths. They say their wells are contaminated with sludge. They
say they breathe sludge dust blowing from recently treated fields. Bowen and her neighbors
blame the sludge for a lot of health problems.


“Laryngitis, stomach, upper respiratory, not being able to breath well.”


For a while these people thought no one was listening. But cases are coming in from all over and
the Environmental Protection Agency is starting to pay attention. In 2002, the EPA asked the
National Academy of Sciences to study the public health aspects of sludge. Thomas Burke is a
professor and epidemiologist with Johns Hopkins University Bloomberg School of Public Health.
He chaired the study.


“This is poop we’re talking about here. It has the potential to cause serious illness if they’re not treated
appropriately and if there is not appropriate protection of the population.”


Burke and others studied to see if the EPA methods used to determine the limits for chemicals,
viruses and bacteria in sewage sludge were strong enough. Burke says the methods are not strong
enough to use the sludge safely.


“We need to understand better the potential health effects. We need a new national survey to
understand the microbes and the potential pathogens that might be present. And also we need to
better characterize the chemicals that might be present in sludge. The current rules are based upon
work that was done back in the ’80’s.”


The EPA is looking at those concerns. It says it will try to determine if there are contaminants in
the sludge that could cause health problems.


Prior to the National Academies of Sciences report, government regulators, including the EPA,
sewer plant managers, and sludge haulers, insisted sludge was safe when applied according to
the rules.


Houston-based Synagro manages sludge biosolids for municipalities in 35 states. Vice President
for government relations, Bob O’dette says there’s been plenty of studies already.


“If I thought for a moment that this caused anybody any health problems, I wouldn’t be in the
industry. I formed my opinion on biosolids before I came into the private sector.”


Problems have been pointed out. But the Federal Office of Inspector General reported in 2002
that the EPA offers virtually no federal oversight over sludge disposal and the agency is not
protecting the public. Those in the agency that tried to point out the problems were pressured or
fired.


Dr. David Lewis says he warned his bosses that using sludge might cause health problems. He
worked as a research microbiologist at the EPA’s national exposure research laboratory in
Georgia. He was fired last May. He alleges in whistleblower lawsuits that the EPA – which not
only regulates, but also promotes recycling sludge biosolids as fertilizer – wanted his sludge
research stopped.


“I can assure you that many of the issues raised by private citizens are issues that are raised and
that many scientists at EPA share those concerns and have from the beginning because of the
concerns over pathogens, metals and other contaminants in sludge and that concerns the risk that
might be present for public health and the environment.”


Lewis says although many viruses and bacteria die in the field, especially when exposed to
sunlight, the biggest risk of infection comes from what grows in the sludge after it’s put down.
Bacterial pathogens grow when the organic matter decomposes. He says it’s just like meat that’s
cooked and then left out on the counter. Some nasty stuff can start growing.


But now the EPA indicates it is ready to make changes. It plans to spend nearly six-million
dollars over the next three years following some of the advice of the National Academy of
Science study. Geff Grubbs is the EPA’s director of science and technology.


“We’re looking at what are the possible impacts and risks to people who live near and would
otherwise be exposed to pollutants that are emitted into the air from biosolids as they’re applied
to land. We’ll be conducting an analysis of samples of biosolids from various points across the
country to help determine the concentrations of additional pollutants that could impact health.”


The EPA says it will first look at health studies of people who claim to have become sick from
exposure to sludge. And it hopes to work with the Centers for Disease Control and state health
departments to arrange for them to track and investigate alleged cases of sludge sickness.


Environmentalists and others say they hope this is a more science-based look at the issue, but
they remain skeptical.


For the Great Lakes Radio Consortium, I’m Amy Tardif.

Related Links

Parallels Found Between West Nile Virus and Polio

Scientists are comparing the effects of West Nile virus to Polio, because they share similar symptoms. The Great Lakes Radio Consortium’s Jenny Lawton has more:

Transcript

Scientists are comparing the effects West Nile Virus to Polio because they share
similar
symptoms. The Great Lakes Radio Consortium’s Jenny Lawton has more:


Researchers say both the West Nile virus and Polio can live in the body for years
before
launching an attack against the nervous system. And there’s evidence both can lead
to other
medical problems years after the initial illness.


In the case of polio, this delay is known as “PPS,” or “post polio syndrome.”


Science journalist, Janet Ginsburg, says those kinds of outbreaks begin with a range
of symptoms.


“And a lot of people had a flu-like illness, just like West Nile fever. These
people today are
showing up with PPS. So you have this model of polio.”


Ginsberg says more research needs to be done before a connection is certain.


There have been fewer than a couple of dozen cases of the West Nile virus in the
Great Lakes
States so far this year.


For the Great Lakes Radio Consortium, I’m Jenny Lawton.

Preventing a Dangerous Microbe in Drinking Water

The EPA wants communities to do more to protect drinking water from a harmful microorganism. That could mean several changes for cities around the Great Lakes. The Great Lakes Radio Consortium’s Chuck Quirmbach reports:

Transcript

The EPA wants communities to do more to protect
drinking water from a harmful microorganism. That could mean
several changes for cities around the Great Lakes. The Great
Lakes Radio Consortium’s Chuck Quirmbach reports:


Ten years ago, a Cryptosporidium outbreak in Milwaukee led to
the deaths of more than 100 people who had weakened immune
systems. The outbreak sickened 400,000 other people.


Since that time, Milwaukee has made 100 million dollars in water treatment plant
improvements. Milwaukee waterworks superintendent Carrie Lewis
says the EPA’s plan to make all drinking water treatment
systems monitor and guard against the microbe means some
cities face new construction at their water treatment buildings.


“Because one doesn’t easily add more barriers to
organisms like Cryptosporidium without adding more physical plant
to the water treatment plants.”


Lewis expects some cities to debate the cost and benefits of the
rule package.


For the Great Lakes Radio Consortium, this is Chuck
Quirmbach reporting.

Related Links

Monkeypox Virus in the Midwest

Public health officials in the Midwest are trying to control a virus outbreak… believed to be linked to infected prairie dogs sold as pets. The Great Lakes Radio Consortium’s Sean Crawford reports:

Transcript

Public health officials in the Midwest are trying to control a virus outbreak…
believed to be linked to infected prairie dogs sold as pets. The Great Lakes Radio
Consortium’s Sean Crawford reports:


There are several confirmed cases of monkeypox now and more are expected.
Authorities are working to track down more than 100 customers of a
suburban Chicago exotic pet dealer.


Dr. Craig Conover with the Illinois Public Health Agency says those who purchased
prairie dogs during the past two months might be at risk.


“We’re making every effort to contact them personally. Many of the individuals are out
of state so the names of such individuals have been transmitted to other state health
departments.”


Conover says some prairie dogs later were traded at swap meets… making it more
difficult to locate them. This is the first time monkeypox has shown up in the
Western hemisphere. While similar to smallpox, it’s usually not as serious, but can
result in fever, chills, and rashes.


For the Great Lakes Radio Consortium, I’m Sean Crawford.

Common Vaccines Contain Toxic Chemical

When you go to get your flu shot, there’s a good chance you’ll also be getting a dose of a toxic chemical. The Great Lakes Radio Consortium’s Lester Graham reports:

Transcript

When you go to get your flu shot, there’s a good chance you’ll also be getting a dose of a toxic
chemical. The Great Lakes Radio Consortium’s Lester Graham reports:


Thimerosal long has been used as a preservative in vaccines. But it contains mercury, and mercury
is not good for anyone. In children it can damage intellectual and nervous system
development. The mercury preservative has been removed from many vaccines, but Barbara Loe
Fisher with the National Vaccine Information Center says it’s still used too often.


“We still have it in influenza vaccine, diptheria-tetanus, some hepatitis B vaccines. Those are all
given to children. And there’s a pneumococcal vaccine that’s given to sick children that also has
Thimerosal, so, you know, on any given day a child could get more mercury than they should be
exposed to because the manufacturers just haven’t gotten it out of all the vaccine.”


Loe Fisher says manufacturers can produce the vaccines in single dose vials, eliminating the need
for the preservative, but the pharmaceutical companies have been resistant because it’s cheaper to
produce multi-dose vials with the mercury preservative.


For the Great Lakes Radio Consortium, this is Lester Graham.