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U.S. Environmental Protection Agency MS-4 stormwater regulatory requirements prompted our founding in 2005. Since our founding, the goal of the Iowa Stormwater Management Partnership (ISWEP) is twofold: Support compliant and effective local stormwater management programs with unified education and outreach delivered statewide.


The majority of MS-4 cities and universities in Iowa are members of the organization. Numerous non MS-4 cities have found ISWEP valuable in developing their stormwater management programs. And we are also supported by professional consultant and engineering firms.

Non-Profit Organization

In January of 2016 the Iowa Stormwater Education Parternship became a registered 501(c)(3) non-profit organization.

Pat Sauer, Executive Director

Pat is a Certified Professional Soil Scientist and Certified Professional of Erosion and Sediment Control (CPESC). She directs the ISWEP program, oversees the Educational Toolbox Program for MS-4 and education members, organizes and conducts training events, and is involved with the Iowa Stormwater Management Manual Technical Committee.

Ben Curtis, Media & Outreach Coordinator

Ben is a Certified Floodplain Manager (CFM). He creates Educational Toolbox resources for MS-4 city/university and education members, responds to member request, conducts research, surveys, and summarizes regulatory documents. Ben supports eastern Iowa members, writes monthly newsletters, webinars and live training events in eastern Iowa. He also provides website and Facebook updates and has the ability to provide GIS support to members. Ben has a B.A. from Drake University and a M.S. from the University of Iowa.

Tiffany Wilson Lillard

Tiffany started working with the Iowa Stormwater Education Partnership in 2021. Tiffany helps implement special workshops, including the Bottom Line on Industrial Stormwater. Tiffany has a B.A. from Drake University and M.S. from The University of Iowa. Prior to joining ISWEP, Tiffany worked for the Iowa Department of Natural Resources.