If you've come here looking for help, see the Sierra Club Michigan Chapter's webpage Stopping CAFO Pollution that's designed to help you document and stop a polluting CAFO in your community, or to help you stop a new CAFO that's proposed for your community. There are easy-to-follow "How Tos", FAQs, a glossary, plus resources for Michigan as well as other states. There are also contacts to help you with questions and strategy.
Concentrated Animal Feeding Operations (CAFOs): what are they?
CAFOs are massive animal factories that house thousands of livestock in close quarters, and that produce as much untreated sewage as cities. Animal factories are increasing in number throughout Michigan's countryside, they're often inappropriately placed, and often designed to pollute. Sierra Club has led the fight to protect the health and economic well-being of Michigan's rural communities by working for more stringent regulation, to bring these operations under the same kinds of environmental and health regulations as all other industries.
For more information see Facts about CAFOs.
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Watch the Sierra Club's acclaimed 24 minute documentary
Scientific Review and Studies of CAFOs and Impacts
Animal waste pollutes water
CAFOs house hundreds to thousands of animals in massive buildings almost year round. Their raw liquified sewage is 25- 100 times more concentrated than human sewage, plus has milk house waste, blood, dead animals, sanitizing and other chemicals mixed in, all of it stored in an open pit that holds millions of gallons. When the disgusting mix is spread on farm fields for disposal as crop fertilizer, it often washes off the fields with rain, or right through the soil into field tiles that drain into streams and rivers, contaminating drinking water intakes, threatening recreational users and harming fish and other wildlife. (See Anatomy of an Animal Factory.)
The Sierra Club has been testing surface waters polluted by CAFO runoff for many years. Over and over again, we've found evidence of manure pollution, which we've provided to the MDNRE (was MDEQ) so they could properly investigate the pollution source, and enforce the law.
Groundwater contamination is also a risk, from nitrates or pathogens like E. coli that move downward into aquifers with the filthy water. The main problem here is that no one is monitoring the water to make sure it's not been contaminated by animal waste.
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Animal waste pollutes air
Air pollution from the animal factories comes from the barns, the sewage pits and from spreading the wastes on fields. Irrigators spray untreated wastes through overhead pipes, aerosolizing the liquid and bacteria. Children and the elderly in particular suffer from exposure to hydrogen sulfide gas, ammonia, and particulate matter that can carry bacteria or other pathogens right into the lungs of neighbors. See this study by Iowa State University and the University of Iowa "
Concentrated Animal Feeding Operation Air Quality Study".
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CAFOs harm rural communities and economy
Animal factories hurt small farmers who can't compete with the huge corporate-owned operations, partly because the huge operations get the lion's share of tax supported federal agriculture subsidies. Mega-dairies often earn a premium on their milk because a milk-hauler needs to make fewer stops to fill their tanks, leaving smaller producers out in the cold. Add to this that animal factories often surround smaller farms, so the smaller farms are harmed by the same water, air, and land pollution as non-farming residents. There's no escape.
No one wants to buy a home near an animal factory, so CAFO-neighbors find themselves unable to sell, with property values dropping as much as 70% after animal factories move in. In "Community Health and Socioeconomic Issues Surrounding Concentrated Animal Feeding Operations", a "workgroup evaluated impacts of the proliferation of concentrated animal feeding operations (CAFOs) on sustaining the health of rural communities. Recommended policy changes include a more stringent process for issuing permits for CAFOs, considering bonding for manure storage basins, limiting animal density per watershed, enhancing local control, and mandating environmental impact statements." (Environ Health Perspect. 2007 February; 115(2): 317–320., Published online 2006 November 14. doi: 10.1289/ehp.8836. PMCID: PMC1817697)
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Sierra Club position: state laws, permits, local government control
Michigan needs strong pollution prevention laws that specifically pertain to CAFOs. Until such laws are passed, Michigan should not encourage or allow the establishment of new Animal Factories.
Permits must spell out operating standards and include a comprehensive waste handling plan for each facility. Air and water quality monitoring, and regular inspections should be conducted to ensure permit requirements are met. State and local governments must be able to establish more comprehensive guidelines for Animal Factory waste disposal to meet the needs of unique landscape, rainfall, climate and population factors specific to their communities.
Local governments should have the right to make land use decisions regarding location of CAFOs, particularly near surface waters, schools, homes or other areas where high potential for human health impacts exist. Animal waste land-applicators should be getting permits and following guidelines very similar to biosolids applicators.
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What You Can Do Now
You can contact your Legislator to ensure he/she is aware of the issue and the potential damage CAFO operations can do to the state's air and water. Become a Sierra Club Legislative Watchdog or contact Anne Woiwode, Conservation Committee Chair, for current information on the legislative issues.
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Is an Animal Factory planned for your community?
There are several avenues of assistance. See the Sierra Club's webpage Stopping CAFO Pollution. For information about pending CAFO water discharge permits see the MDNRE website. You can help monitor streams around CAFOs and comment on proposed permits for new or existing CAFOs. Contact Conservation Director Anne Woiwode to find out how. Lynn and her husband Dean are family farmers working land that has been in the Henning family for four generations.
Eight years ago, when the first of the 12 concentrated animal feeding operations in the Hudson area of Michigan set up next door to her family’s farm, Lynn joined with other residents to form Environmentally Concerned Citizens of South Central Michigan to do water monitoring and to protect their homes, their health, and their way of life. Lynn became part of the Sierra Club Water Sentinels team as a volunteer, and in January 2005 came on staff as the Michigan Chapter’s CAFO Water Sentinel. Lynn was awarded The Goldman Environmental Prize for North America in 2010 for her work.
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This is a typical Michigan animal factory, with several huge barns that house hundreds or thousands of animals each, and several acres of raw sewage storage pits.