Factory Farms – Water Pollution

  • Hog manure being injected into the ground and tilled under. The manure fertilizes the crops, but if too much is applied it can foul up waterways. (Photo by Mark Brush)

Transcript

(sound of giant fans)


About a thousand cows are in this building, eating, lolling around, and waiting for the next round of milking.


There’s a sharp smell of manure hanging in the air. Big fans are blowing to keep the cows cool, and to keep the air circulated.


Stephan Vander Hoff runs this dairy along with his siblings. He says these big farms are good for consumers:


“We’ve got something here and we’ve been able to do it in such a way that we’re still producing at the same cost that we were fifteen years ago. It costs more now for a gallon of gas than a gallon of milk. And so, that’s something to be proud of.”


Vander Hoff’s dairy produces enough milk to fill seven tanker trucks everyday. They also produce a lot of waste. The cows in this building are penned in by metal gates. They can’t go outside. So the manure and urine that would normally pile up is washed away by water.


Tens of thousands of gallons of wastewater are sent to big lagoons outside. Eventually, the liquefied manure is spread onto nearby farm fields. It’s a challenge for these farmers to deal with these large pools of liquid manure. The farther they have to haul it, the more expensive it is for them. Almost all of them put the manure onto farm fields.


It’s good for the crops if it’s done right, but if too much manure is put on the land, it can wash into streams and creeks. In fact, this dairy has been cited by the state of Michigan for letting their manure get into nearby waterways.


(sound of roadway)


Lynn Henning keeps a close eye on Vander Hoff’s dairy.


(car door opening and closing)


She steps from her car with a digital camera, and a device that measures water quality.


(sound of crickets and walking through the brush)


She weaves her way down to the edge of this creek.


“This is the area where we got E. coli at 7.5 million.”


High E. coli levels mean the water might be polluted with dangerous pathogens. Lynn Henning is testing the creek today because she saw farmers spreading liquid manure on the fields yesterday. Henning is a farmer turned environmental activist. She works for the Sierra Club and drives all over the state taking water samples and pictures near big livestock farms.


Henning says she got involved because more of these large animal farms expanded into her community. She says when the farmers spread the liquid manure, it can make life in the country pretty difficult:


“The odor is horrendous when they’re applying –we have fly infestations–we have hydrogen sulfide in the air that nobody knows is there because you can’t always smell it. We have to live in fear that every glass of water that we drink is going to be contaminated at some point.”


Water contamination from manure is a big concern. The liquid manure can contain nasty pathogens and bacteria.


Joan Rose is a microbiologist at Michigan State University.


“If animal wastes are not treated properly and we have large concentrations of animal waste going onto land and then via rainfall or other runoff events entering into our water – there can be outbreaks associated with this practice.”


Rose tested water in this area and found high levels of cryptosporidium that likely came from cattle. Cryptosporidium is the same bug that killed people in Milwaukee back in 1993. Rose says livestock farmers need to think more about keeping these pathogens out of the water. But she says they don’t get much support from the state and researchers on how best to do that.


For now, the farmers have to come up with their own solutions.


(sound of treatment plant)


Three years ago, the state of Michigan sued Stephen Vander Hoff’s dairy for multiple waste violations. The Vander Hoff’s settled the case with the state and agreed to build a one million dollar treatment system. But Vander Hoff isn’t convinced that his dairy was at fault, and thinks that people’s concerns over his dairy are overblown:


“If we had an issue or had done something wrong the first people that want to correct it is us. We live in this area. So why would we do anything to harm it?”


Vander Hoff is upbeat about the new treatment system. He says it will save the dairy money in the long run.


The Sierra Club’s Lynn Henning says she’s skeptical of the new treatment plant. She’ll continue to take water samples and put pressure on these farms to handle their manure better. In the end, she doesn’t think these big farms have a place in agriculture. She’d rather see farms go back to the old style of dairying, where the cows are allowed to graze, and the number of animals isn’t so concentrated.


But farm researchers say because consumers demand cheap prices, these large farms are here to stay and there will be more of them. Because of this, the experts say we can expect more conflicts in rural America.


For the Environment Report, I’m Mark Brush.

Related Links

In Search of Resistant Butternuts

A program is trying to save another
native tree that’s being wiped out by an invasive
fungus. People who like the butternut are hoping
that by planting more seedlings, and tracking
mature trees, they’ll find some are resistant
to a blight that’s killing the butternuts.
Lucy Martin reports:

Transcript

A program is trying to save another
native tree that’s being wiped out by an invasive
fungus. People who like the butternut are hoping
that by planting more seedlings, and tracking
mature trees, they’ll find some are resistant
to a blight that’s killing the butternuts.
Lucy Martin reports:


Butternuts are rich in history. Native Americans used the tree for
medicine and dye. They ate the nuts. During the Civil War, so many
Confederates used the tree’s yellow-brown dye to make home-spun
uniforms that their army picked up the nickname “butternuts.”


Wood ducks, finches and songbirds eat the tree’s spring buds. The fall
nut crop feeds woodpeckers, turkeys, squirrels and other wildlife.
The tree’s hard wood resembles walnut, but with a lighter, golden tone.
That’s why it’s sometimes called “white walnut.”


The trees are seriously threatened by butternut canker, an invasive,
airborne fungus. The blight was first noted in Wisconsin in 1967. In
some states, up to 90% of all butternuts are now affected, but there’s
work underway to try to save the butternut before it’s wiped out.


Tucked in an old orchard, a cold-storage room serves as a distribution
station. Each spring, this is where the Rideau Valley Conservation
Authority gives away seedling trees to the public. Project technician
Rose Fleguel gave me the tour:


“So, I think there’s about 100,000 seedlings here. These are boxed or
bagged so that the trees stay moist and dark. We’ve already spent two
days re-packing into individual landowner tree orders.”


At this time of year, the dormant seedlings just look like twiggy
sticks. Many are still wrapped in brown paper sacks. Conservation
agencies plant all kinds of trees. But sometimes they target very
specific problems, like butternut canker.


“My thing is the Butternut Recovery Project, whatever amount of land
can sustain 10 seedlings, then you’re free to take the seedlings and
plant them out. ‘Cause what we’d like to do is get the seedlings out on
the landscape, get them growing. Replace the ones that have been killed
by this disease, already, and that continue to be killed, and hope for,
I mean, it’s going to be, it’s going to be a shot in the dark, but hope
that maybe some of these seedlings might be resistant.”


“Hope” is the key word. It’s not clear whether any butternuts are
resistant to the canker blight. The seedlings being handed out are
from trees that are still healthy. This recovery program also maps
mature trees and keeps track of the ones that still seem to be canker-
free. It’s a long shot, called “find the resistance.”


Rudy Dyck is the Director of the local Watershed Stewardship Services.
He says you can usually see if a butternut has been attacked by the
disease:


“Look for black patches, black streaks, black sooty areas on
the main stem, at the root collar, and always look on the underside of
the large branches, because that seems to be where the canker first
infects.”


“And if you notice that, is there anything to be done?”


“No, there’s nothing you can do. We’re asking people to keep them, as
long as they can. But one of the reasons that butternut is in such
extreme danger of extinction is that it just does not regenerate very
well.”


Dyck says that’s why it’s important to conserve existing trees.
Butternuts don’t bear seed each and every year. And when they do, the
nuts tend to get gobbled up. Growing new butternuts takes a few tricks:


“You have to stratify them, or prepare them for growing, the next
spring. So they have to spend a few months in kind of freezing
temperatures, an un-insulated garage in a pot of peat moss, or
something. Another strategy some people do, is they bury the nuts in
the fall, and they cover them with chicken wire, and then that protects
them from squirrels during that fall period and, as they start to grow
next spring, you can transplant them.”


Dyck says US and Canadian agencies are sharing ideas and results
because diseases don’t stop at borders:


“There’s literally thousands and thousands of heavily cankered, dying
butternuts out there, and we really want to focus on looking at
healthy, canker-free trees. Because those are the trees we want to get
into our geo-data base, for future seed collection, those are the trees
that may hold some resistance and those are the trees we want to
track.”


Butternut canker isn’t a well-known problem. The beautiful trees are
too big for most yards. They’re usually sparsely scattered in forests,
or old farmsteads. But Dyck says the butternut has an important place
in nature.


“There’s no question, bio-diversity and having many, many types of
ecosystems, habitats, species. They all interact, they all count on
each other, and it all makes for a healthier environment and place for
us all to live.”


Many native trees such as the chestnut, elm, and now the ash, are under
attack from invasive diseases or pests. The butternut is yet another
tree biologists want to save for future generations.


For the Environment Report, I’m Lucy Martin.

Related Links

Too Much Manure?

  • Hog manure being injected into the ground and tilled under. The manure fertilizes the crops, but if too much is applied it can foul up waterways. (photo by Mark Brush)

Today, we continue our series on pollution in the heartland.
Dairy farms are getting bigger. Many keep thousands of cows in buildings the size of several football fields. These big dairy operations can make a lot of milk. That translates into cheaper prices at the grocery store.
But some worry these large farms are polluting the land around them. In the fourth story of our week-long series, the GLRC’s Mark Brush visits a big Midwestern dairy farm:

Transcript

Today, we continue our series on pollution in the heartland. Dairy farms are getting bigger.
Many keep thousands of cows in buildings the size of several football fields. These big dairy
operations can make a lot of milk. That translates into cheaper prices at the grocery store. But
some worry these large farms are polluting the land around them. In the fourth story of our week-long series, the GLRC’s Mark Brush visits a big Midwestern dairy farm:


(sound of giant fans)


About a thousand cows are in this building, eating, lolling around, and waiting for the next round
of milking.


There’s a sharp smell of manure hanging in the air. Big fans are blowing to keep the cows cool,
and to keep the air circulated.


Stephan Vander Hoff runs this dairy along with his siblings. He says these big farms are good for
consumers:


“We’ve got something here and we’ve been able to do it in such a way that we’re still producing
at the same cost that we were fifteen years ago. It costs more now for a gallon of gas than a
gallon of milk. And so, that’s something to be proud of.”


Vander Hoff’s dairy produces enough milk to fill seven tanker trucks everyday. They also
produce a lot of waste. The cows in this building are penned in by metal gates. They can’t go
outside. So the manure and urine that would normally pile up is washed away by water.


Tens of thousands of gallons of wastewater are sent to big lagoons outside. Eventually, the
liquefied manure is spread onto nearby farm fields. It’s a challenge for these farmers to deal with
these large pools of liquid manure. The farther they have to haul it, the more expensive it is for
them. Almost all of them put the manure onto farm fields.


It’s good for the crops if it’s done right, but if too much manure is put on the land, it can wash into streams and creeks. In fact, this
dairy has been cited by the state of Michigan for letting their manure get into nearby waterways.


(sound of roadway)


Lynn Henning keeps a close eye on Vander Hoff’s dairy.


(car door opening and closing)


She steps from her car with a digital camera, and a device that measures water quality.


(sound of crickets and walking through the brush)


She weaves her way down to the edge of this creek.


“This is the area where we got E. coli at 7.5 million.”


High E. coli levels mean the water might be polluted with dangerous pathogens. Lynn Henning is
testing the creek today because she saw farmers spreading liquid manure on the fields yesterday.
Henning is a farmer turned environmental activist. She works for the Sierra Club and drives all
over the state taking water samples and pictures near big livestock farms.


Henning says she got involved because more of these large animal farms expanded into her
community. She says when the farmers spread the liquid manure, it can make life in the country
pretty difficult:


“The odor is horrendous when they’re applying –we have fly infestations–we have hydrogen
sulfide in the air that nobody knows is there because you can’t always smell it. We have to live
in fear that every glass of water that we drink is going to be contaminated at some point.”


Water contamination from manure is a big concern. The liquid manure can contain nasty
pathogens and bacteria.


Joan Rose is a microbiologist at Michigan State University.


“If animal wastes are not treated properly and we have large concentrations of animal waste
going onto land and then via rainfall or other runoff events entering into our water – there can
be outbreaks associated with this practice.”


Rose tested water in this area and found high levels of cryptosporidium that likely came from
cattle. Cryptosporidium is the same bug that killed people in Milwaukee back in 1993. Rose
says livestock farmers need to think more about keeping these pathogens out of the water. But
she says they don’t get much support from the state and researchers on how best to do that.


For now, the farmers have to come up with their own solutions.


(sound of treatment plant)


Three years ago, the state of Michigan sued Stephen Vander Hoff’s dairy for multiple waste
violations. The Vander Hoff’s settled the case with the state and agreed to build a one million
dollar treatment system. But Vander Hoff isn’t convinced that his dairy was at fault, and thinks
that people’s concerns over his dairy are overblown:


“If we had an issue or had done something wrong the first people that want to correct it is us. We
live in this area. So why would we do anything to harm it?”


Vander Hoff is upbeat about the new treatment system. He says it will save the dairy money in
the long run.


The Sierra Club’s Lynn Henning says she’s skeptical of the new treatment plant. She’ll continue
to take water samples and put pressure on these farms to handle their manure better. In the end,
she doesn’t think these big farms have a place in agriculture. She’d rather see farms go back to
the old style of dairying, where the cows are allowed to graze, and the number of animals isn’t
so concentrated.


But farm researchers say because consumers demand cheap prices, these large farms are here to
stay and there will be more of them. Because of this, the experts say we can expect more
conflicts in rural America.


For the GLRC, I’m Mark Brush.

Related Links

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.

Related Links

Eco-Cows Munch on Invasive Plants

  • Researchers are finding that Scottish Highland Cattle, such as these Rockhill Red Cows, have an appetite for many types of invasive plants. Photo courtesy of Marv & Ann Rockhill.

Cattle that love to eat thorny shrubs and nasty weeds are proving they can clean up areas infested with invasive plant species. The Great Lakes Radio Consortium’s Mary Jo Wagner has this report:

Transcript

Cattle that love to eat thorny shrubs and nasty weeds are proving they can clean up areas infested with invasive plant species. The Great Lakes Radio Consortium’s Mary Jo Wagner reports.


For years, land managers have been trying to find better ways to control particularly troublesome plants. Invasive species such as multi-flora rose, prickly ash and wild parsnip used to be held in check by natural fires, or grazing by bison and elk. But ever since wildfires have been mostly controlled, and elk and bison populations have plummeted, many invasive species in the Great Lakes region have been growing out of control. So researchers have been looking for other ways to fight these invaders. At the University of Wisconsin, researchers have been testing Scottish Highland cattle on some fields containing invasive species. Consultant Martha Rosemeyer says the preliminary results look promising…


“One of the things we’ve found out by following the cattle is they really like wild parsnip when it’s young. Out of a field of grass they’ll identify and hone in on the wild parsnip and eat the whole patch of it.”


One of two farms testing the cattle’s weed eating potential is owned by Peter Rathbun. He says on one of the test plots, the parsnip was so high and thick, biologists wouldn’t go in to take samples.


“I was a little concerned, well are the cows going to go in and eat it and get sick, but they went in and ate it and they loved it.”


Rathbun has various weed and brush problems or “junk” as he calls it on 120 acres, including prickly ash, hawthorn, gooseberries and other plants that produce large thickets. He was one of the first farmers in Wisconsin to start raising the highland cattle several years ago and now has around forty animals eating weeds on half his farm. His goal is to return some o the land to its original oak savannah status. So far on his fifteen test plots with and without cattle, the results of grazing Scottish cattle are positive.


“It’s so wonderfully obvious what’s happening because here’s three strands of electric fence. On one side you can walk right through the woods…its no problem – you can see everything there. On the other side it’s dense, you don’t even want to think about walking through it. And this is only after 2 rotations.”


Rotating means moving groups of up to nine cattle around on once-acre test plots. The cattle spend two or three days on select plots each month throughout the summer. Martha Rosemeyer says researchers were interested in the breed of cattle because in Europe, they’re referred to as “eco-cows.” That’s because of their unique ability to eat plants that have inch-long thorns.


“They’ve got really tough tongues – they wrap them around these and pull – so they pull these things up like prickly ash leaves off and aren’t really bothered by thorns. They actually like thorns to rub and scratch…they’ll lean on things and scratch and they’ll break them and change the vegetation in that way too.”


Peter Rathbun says it didn’t take long for his cattle to tackle a patch of prickly ash after the gate into one test plot was opened.


“They ran over to it and started eating the actual bush. And I loved to see the reaction of some of the graduate students who’ve been working on this for a very long time. In their heart of hearts they really had some doubts whether the animals were really going to like to eat the junk.”


Once results are in by the summer of 2003, consultant Martha Rosemeyer says researchers may have a better idea of how effective the cattle will be at permanent eradication of unwanted plants.


“Certainly if you knock down a plant by taking off it’s above ground vegetation a number of times, it weakens the plant and it eventually will die. That’s what we’re hoping will happen but we’re not sure we need to test this and see the results…it’s speculation at this point.”


By comparison, Rosemeyer says on Department of Natural Resources land, a few test pilots were grazed and burned earlier this year to compare the weed control with the Highland cattle. It turned out that combination was too destructive and the burning was discontinued.


Meanwhile, not only do these animals eat through the bad stuff, but they also provide great hamburgers. Rathbun sells the meat as a low fat, very tasty source of protein.
For the Great Lakes Radio Consortium, I’m Mary Jo Wagner.