“Iowa has 167 open feedlots with NPDES permits,” said Bill Ehm, DNR administrator for environmental services. “These unroofed or partially roofed facilities have historically had some runoff through the feedlot when it rains. I don’t expect many NPDES permits to be issued to confinements.
The Iowa Pork Producers Association and the DNR maintain that most swine confinement sites will not require an NPDES permit as manure is totally contained and any accidental discharges will have an opportunity to be remedied. Additionally, it is already against the law for Iowa confinement facilities to discharge to waters of the U.S., with violators subject to fines and restitution.
“Most confinements will not need the protection of an NPDES permit, because they are unlikely to discharge,” Ehm added. “Most manure releases we’ve had in Iowa have been caused by a one-time event – like an accident or failure of a pipe – problems that the producer can demonstrate have been fixed with permanent measures that eliminate the cause of the discharge.
Any NPDES permit holders must continue to meet existing requirements of Iowa law for construction permits and siting, manure management plans and land application.
Source: Iowa Pork Producers Association