Current Requirements

1. How many animals of the same type do I have (adding together animals of the same type kept indoors and outdoors)?
2. Does my operation discharge runoff containing manure components or process wastewater?
3. How close are the components of my operation?

The following fact sheets can help producers answer the three questions and determine if an NPDES permit is needed:

• Dairies - Act Now! Permits Needed for Combined Cow Yard - Confinement Operations
• NPDES Permits - Determining if a Combination Open Feedlot and Animal Confinement Must Apply for an NPDES Permit in 2008
• Frequently Asked Questions about NPDES Permits for Combined Animal Feeding Operations 11/08

The DNR has updated several forms for livestock producers who need a permit for a combined operation. They include:

• NPDES Operation Permit Application, Revised 9/08, form 542-4001
• The Construction Permit Application, Revised 9/08, form 542-1427
• The Compliance Schedule for a Combined CAFO, New 10/08, form 542-0190
• Nutrient Management Plan, (NMP) Form, Revised 10/08, form 542-2021

Owners and operators of small livestock truck washing businesses must apply for a land application permit. Look for the Livestock Truck Wash Land Application Permit Application (DNR form 542-0157) and example permit. Find more information on the DNR’s National Pollutant Discharge Elimination System (NPDES) permits pages.

Helpful Links:

• Field Office Information
• For a list of engineers and nutrient planners, see the Iowa Manure Management Action Group's website
• For more information about discharges and the federal rules: See the National Cattlemen's Beef Association's website or the U.S. Environmental Protection Agency's website.
• Find more information about federal regulations on the U.S. Environmental Protection Agency's Agriculture website. 
• Existing rules and definitions can be found in Chapter 65 of the Iowa Administrative Code