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Iowa Environmental Groups Ask EPA to Protect Drinking Water From Agricultural Runoff

By Erin Jordan

Iowa environmental groups — inspired by a successful campaign in Minnesota — are asking the U.S. Environmental Protection Agency to step in and protect drinking water in northeast Iowa from agricultural runoff.

The petition was announced April 16, hours after the Iowa Environmental Protection Commission unanimously approved largely status quo rules governing animal feeding operations.

“The Environmental Protection Commission has once again proven who they really serve — not the Iowa public, but big ag polluters,” said Alicia Vasto, water program manager for the Iowa Environmental Council, one of the 13 groups that filed the petition with the EPA.

The petition asks the EPA to use its emergency authority to intervene in Iowa to “address groundwater contamination that presents an imminent and substantial endangerment to the health of residents in northeastern Iowa.”

“The well-documented nitrate contamination of drinking water in the karst region necessitates prompt and decisive EPA emergency action,” the petition states. “Elevated levels of nitrate in drinking water are known to increase the risk of a wide range of very serious health problems …”

A 2018 review of 30 academic studies showed a link between ingesting nitrate from drinking water and adult diseases, including colorectal cancer. Other University of Iowa studies show nitrate consumption may cause bladder and ovarian cancer in older women, The Gazette reported last month.

Nitrate is found at potentially harmful levels in 1-in-20 Iowa public drinking water systems and in more than 12,000 private wells in Iowa.

The petition focuses on Iowa’s Driftless region, where porous karst terrain makes streams and groundwater particularly vulnerable to fertilizer or manure runoff.

Just across the state border to the north, the EPA in November told the Minnesota Pollution Control Agency to develop a plan for addressing nitrate levels in drinking water sources in southeastern Minnesota. This EPA demand came six months after environmental groups in Minnesota filed a petition comparable to what Iowa groups filed on April 16.

“We’ve seen similar increases in nitrate in drinking water sources just like in Minnesota,” said Michael Schmidt, an attorney for the Iowa Environmental Council. “We would expect the EPA to do at least as much in Iowa.”

Other groups included on the petition are: Allamakee County Protectors — Education Campaign, Center for Food Safety, Environmental Law & Policy Center, Environmental Working Group, Food & Water Watch, Iowa Alliance for Responsible Agriculture, Iowa Citizens for Community Improvement, Izaak Walton League of America — Iowa Division, Sierra Club Iowa Chapter, Socially Responsible Agriculture Project, Iowa Coldwater Conservancy, and Trout Unlimited — Iowa Driftless Chapter 717.

Iowans ask for tougher rules on CAFOs

Before approving revisions to Chapter 65 of Iowa’s Administrative Rules, the Iowa Environmental Protection Commission on April 16 held a public hearing at which 11 people asked for tougher regulations on how developers build feeding operations and dispose of manure.

“Iowa has over 10,000 factory farms that contribute to over 750 impaired waterways,” said Tom Mohan, of Cedar Rapids. “We believe clean water is a human right.”

Rich Gradoville, of Johnston, said he recently was diagnosed with bladder cancer and his urologist mentioned the possibility of agricultural pollution in drinking water as a factor.

“Since our body deals with all our drinking water through our bladder, that makes sense to me,” Gradoville said. “I’d like to see you strengthen these regulations as much as possible.”

Three people representing agricultural groups spoke in favor of the rules.

“The Iowa Cattlemen’s Association supports the rules you have before you,” said Eldon McAfee, an attorney with the Brick Gentry law firm and a former dairy farmer. He said the rules protect soil and water without infringing on farmers’ rights.

Commission Chair Harold Hommes asked Iowa Department of Natural Resources staff whether it was possible to change the proposed rules at the April 16 meeting. Staff said any major changes would start the rules review process over again.

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