Mandated by Congress under the Clean Water Act, the National Pollutant Discharge Elimination System (NPDES) Storm Water Program is a comprehensive, two-phased national program for addressing the non-agricultural sources of stormwater discharges that adversely affect the quality of our nation's waters. The program uses the NPDES permitting mechanism to require the implementation of controls designed to prevent harmful pollutants from being washed by stormwater runoff into local water bodies.
Stormwater run-off is precipitation that falls to the ground and comes in contact with soils, greases, debris, and other contaminants from areas such as roadways, parking lots, and rooftops.
Stormwater run-off is one of the leading causes of water quality problems. Stormwater carries debris and pollutants directly into our water sources, which can endanger the lives of humans, animals, and plant life. Managing stormwater run-off helps eliminate and/or reduce these negative impacts.
For more information, login to Learn@ISU and register for Spill Control and Stormwater Pollution Prevention.
The hotline provides the ISU community a means of reporting stormwater issues and concerns. Callers may remain anonymous and are only required to provide a location and brief description of the issue. All calls are investigated by EH&S personnel in a timely manner.
The Stormwater Hotline publication is available on request. Call EH&S at (515) 294-5359.
Examples of ISU Best Management Practices (BMP's)
- Concrete Washout
- Concrete Washout Mini-Bags
- Construction Site Entrance / Exit
- Dewatering with Filter Sock - 1
- Dewatering with Filter Sock - 2
- Dust Control
- Filter Sock and Storm Intake
- Green Roof
- Intake Protection
- Polyethylene Retention Cells
- Portable Toilets
- Rock Chute and Rock Outlet Protection
- Scour Matt
- Silva Cells System
- Street Cleaning
- Temporary Rolled Erosion Control Product
Publications and Forms
- After The Storm (PDF)
- Site Inspection Sheet (PDF)
- Staff Survey Summary (2004) (PDF)
- Storm Water Pollution Prevention Plans (PDF)
- Stormwater Annual Reports (PDF): 2016, 2015, 2014, 2013, 2012
- Municipal Separate Storm Sewer System (MS4) Permit (PDF)
- Stormwater Hotline Poster (PDF)
- Iowa Department of Natural Resources - Water Quality
- IDNR Stormwater Polllution Prevention Plans (SWPPP)
- EPA Stormwater Pollution Prevention Plans (SWPPP)
- Iowa Storm Water Education Program
- Iowa Construction Site Erosion Control Manual
- Iowa Statewide Urban Design and Specifications (SUDAS)
- Center for Watershed Protection*
- EPA NPDES website*
- The Stormwater Manager's Resource Center*