Years after the Clean Water Act of 1972 was adopted, EPA completed rules intended to implement the requirement that stormwater discharges be included in the NPDES permit program. Since Iowa was delegated the NPDES program for wastewater discharges, delegation was requested for stormwater discharges as well.

Information regarding the storm water permit program and how it is managed by the Environmental Protection Division can be found within the following pages:

• Who must apply for a Storm Water Discharge Permit?
• Understanding Storm Water NPDES Permitting Requirements
• Cities/Universities Required to Obtain Permits
• Storm Water Forms and Application Materials
• Options Available for Making an Application
• Construction Site Erosion Control and Streambank Erosion Control Manuals

More information on storm water improvement