Ten Threats: Farmers Wasting Water?

  • A farm in Manistee County, Michigan using an irrigation system. (Photo courtesy of Michigan Land Use Institute)

In the Great Lakes region, farmers are one of the biggest users of water. They
pump water from underground aquifers or from lakes and streams to irrigate their
crops or water livestock. Agriculture has been criticized for its large withdrawals
of water. Farmers say they want to be recognized in a Great Lakes water use
agreement as efficient water users, but as Erin Toner reports… it’s unclear
whether that’s true:

Transcript

The series, Ten Threats to the Great Lakes is now looking at the threat of water withdrawals from the Great Lakes. Our guide through the series is Lester Graham. He says a lot of businesses and homes use water from the basin, but one group says its use is especially efficient.


In the Great Lakes region, farmers are one of the biggest users of water. They
pump water from underground aquifers or from lakes and streams to irrigate their
crops or water livestock. Agriculture has been criticized for its large withdrawals
of water. Farmers say they want to be recognized in a Great Lakes water use
agreement as efficient water users, but as Erin Toner reports… it’s unclear
whether that’s true:


Scott Piggott is the sixth generation to grow up on his dad’s cattle farm in a small
town in central Michigan. He says not everything on the farm is perfect, but he
says he grew up knowing that you have to do things right to protect the
environment.


“If we don’t begin to stand up and say, look, this is what we’re doing to protect
the environment, I think more people will continue to say, hey, they’re not telling
us what they’re doing, they must be doing something wrong.”


Piggott also works for the Michigan Farm Bureau. He says his goal is to make
sure every farm in his state is doing everything it can to protect the environment,
including conserving water they use for irrigation.


But Piggott and the farm bureau oppose broad regulations for large water users,
such as farmers. That’s proposed in a draft of a Great Lakes regional water use
agreement. Piggott argues the agreement should treat farmers differently because
the water they use goes right back into the ground.


Piggott said in a Farm Bureau press release that, “95 percent of the water that
touches a farm field seeps into the soil providing aquifer recharge.”


Later, he qualified his statement.


“It is estimated that 95 percent of the water that touches an open, pervious space
seeps into the soils and a portion of that, which I would infer that, it does provide
aquifer recharge, but necessarily does all 95 percent of it go towards aquifer
recharge. I think that might be debated. The quote could probably be stronger in
a given direction, but I stand by it.”


Piggott says his information is based on Environmental Protection Agency
estimates. But is his 95 percent figure true?


Jon Bartholic is with Michigan State University. He’s done research on water
use on farms. He says of all the water that falls on a farm – that’s rainfall and
irrigation – about 70 percent of it evaporates.


“So the remaining part, 30, 40 percent depending where you are. It might be
almost 0 percent, if you’ve got clay soil and it’s all run off, is there to potentially
to go back and recharge the aquifer.”


Bartholic’s estimate is that 30 to 40 percent potentially flows back into the Great
Lakes basin and its aquifers – that’s nowhere near 95 percent. Bartholic says farmers
do consume water.


“Clearly, farmers are being very conscientious about their water use, but, yes, if
you use water for crops and have economic value, there is some consumptive
usage of that water.”


Other water experts in the region say the issue is complicated. A lot of factors
effect how much water used to irrigate crops actually gets back to the aquifer.
Although one expert says at best the 95-percent estimate is “theoretically
possible” if conditions were perfect.


Conditions are rarely perfect.


Mark Muller is director of the Environment and Agriculture Program with the
Institute of Agriculture and Trade Policy in Minneapolis. Muller says it’s
generally agreed that right now there’s plenty of groundwater in the Great Lakes
region, but he says there is still reason for concern. That’s because in other areas of the
country, aquifers thought to be plentiful have gone dry.


Muller says managing Great Lakes water resources is important for the close to
40-million people who rely on the basin for their drinking water. He says
managing that water correctly is also crucial to sustaining the region’s farming
industry.


“Industry and agriculture is going to look at the Great Lakes basin as a place
where they should set up shop. So, I think we should realize that we have a very
valuable resource that’s only going to become more valuable in future years.”


Muller adds that public opinion is very important to shaping the Great Lakes
regional water use agreement. He says any misleading information, from any of
the stakeholders, is just not helpful. That’s why the farm bureau’s claim that 95-
percent of the water used for irrigation recharges the aquifers is more important than
just an optimistic viewpoint. It’s seen by some as a public relations spin.


For the GLRC, I’m Erin Toner.

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Lake Shoreline Preserved From Development

  • The Coho site, a 540-acre tract of undeveloped land along Lake Erie, was intended to be used for power plant development. When those plans fell through, conservation groups rallied to buy the land. They're now celebrating a successful purchase. (Photo by Cathy Pedler)

In an ongoing study on the health of the Great Lakes, the U.S. Environmental Protection Agency has identified shoreline development as one of the biggest threats to the health of the five Lakes. Conservation groups have continually worked to slow the spread of shoreline development. And now along a stretch of Lake Erie, they’ve scored a major success. The Great Lakes Radio Consortium’s Ann Murray has more:

Transcript

In an ongoing study on the health of the Great Lakes, the U.S. Environmental Protection Agency
has identified shoreline development as one of the biggest threats to the health of the five Lakes.
Conservation groups have continually worked to slow the spread of shoreline development. And
now along a stretch of Lake Erie, they’ve scored a major success. The Great Lakes Radio
Consortium’s Ann Murray has more:


Tom Furhman and Cathy Pedler with the Lake Erie Region Conservancy have come to what’s
called the Coho site to celebrate.


(champaign bottle cork pops)


(laughs) “Coho ho ho ho!”


This 540-acre tract was named after Coho salmon. It’s the largest undeveloped and unprotected
parcel of land left along Pennsylvania’s Lake Erie shoreline. There were plans to build a power
plant here. Those plans were abandoned and the conservation groups have been trying to get a
hold of it. It’s taken five long years to buy the land.


“We organized a group in ’98 to try to get the utility company to sell it and really there was no
interest to sell that parcel so we partnered with the Western Pennsylvania Conservancy and most
recently with the Conservation Fund to buy it. And when we thought about the best use we got a
hold of the state and said this could be a great state park.”


After finishing their Champaign, Furhman and Pedler hike down to the western front of the Coho
parcel. Here, the property’s 90-foot cliffs loom over the water’s edge for more than a mile. Pedler
says most of Pennsylvania’s 43-mile long Lake Erie shoreline is privately owned. And
development has contributed to erosion and damage to bluffs. She stands on the property’s
narrow rock strewn beach and admires the unfettered view.


(sound of water)


“You can see just how magnificent this is with the water running over the slate and the high cliffs
and the bare magenta trees and an eagle. Yeah, I think we kind of want to keep that! Laughs.


(sound of waves fade under)


“It is a very significant site.”


Charles Bier is a conservation biologist with the Western Pennsylvania Conservancy.


“It’s really that narrow band of land that’s sometimes less than a half a mile wide. That’s this very
unique interface between Lake Erie and the mainland of Pennsylvania.”


As part of a larger project, the Conservancy performed a natural history inventory of the Coho
property. The site has high bluffs, wetlands and old growth forests. Inland dunes formed 15,000
years ago when glacial movement made the lake elevation higher.


“All of these habitats come together for 11 species of plants that are considered to be very rare
and unusual.”


Back on site, Cathy Pedler points out that this parcel of land is also historically important. Pedler
and her husband, Dave, are archeologists. This afternoon, they trudge up a thickly wooded hill
above an access area to Elk Creek, one of the state’s best fishing spots.


“Oh, we’ll go this way.”


At the top of the hill, the trees give way to a large plowed field. The farmer who has leased this
land has unearthed fragments of stone tools and pottery. The Pedlers believe that an ancient
village was located here.


This is really a special property archeologically. It’s not just a site. We think it’s a pretty
significant complex of them.


Six archeological sites on the Coho property have already been inventoried. Some are at least
10,000 years old. The Pedlers think the best way to protect these historic locations and sensitive
natural areas will be to make the land a state park. In the next few months, the Conservancies
plan to transfer the parcel to the state of Pennsylvania.


But some local government officials have raised questions about making the lake front site public
land. They say the stretch of land could be developed and property taxes collected. If it’s put into
parkland, the local government loses that tax money. Gretchen Leslie is spokesperson for the
Pennsylvania Department of Conservation and Natural Resources. Leslie says despite the loss of
property taxes, she sees the acquisition of this parcel as a smart move for the region.


“We believe this property has economic value and that you can locate industrial developments or
business parks in many, many different locations throughout the region. But there are only a few
locations that have such special natural qualities to them that they will serve an important tourism
role. And this is one of them.


(sound of waves)


And the cliffs above Lake Erie are unique. Pennsylvania is a large state, but only a small piece of
the state sits on the Great Lake. And many think that the one-mile stretch of shoreline that Coho
covers is worth preserving.


For the Great Lakes Radio Consortium, I’m Ann Murray.

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