The Water Cycle at the University of Minnesota Twin Cities
Spotting and Reporting Illicit Discharge on Campus

What is stormwater? 

"Stormwater runoff is generated from rain and snowmelt events that flow over land or impervious surfaces, such as paved streets, parking lots, and building rooftops, and does not soak into the ground. The runoff picks up pollutants like trash, chemicals, oils, and dirt/sediment that can harm our rivers, streams, lakes, and coastal waters. To protect these resources, communities, construction companies, industries, and others, use stormwater controls, known as best management practices (BMPs). These BMPs filter out pollutants and/or prevent pollution by controlling it at its source." (EPA)

What is illicit discharge?

"Federal regulations define an illicit discharge as '...any discharge to an MS4 that is not composed entirely of stormwater...' with some exceptions." These exceptions include discharges from water-line flushing, landscape irrigation, air conditioning condensate, and discharges from fire-fighting activities. Illicit discharges are considered 'illicit' because "MS4s are not designed to accept, process, or discharge such non-stormwater wastes." (EPA)

As water runs across landscapes and streets into storm drains, it picks up and carries away pollutants such as cigarette butts, trash, salt, vehicle fluids, or yard waste. This contaminated, untreated water eventually makes its way into the Mississippi River where it reduces water quality and clarity and can cause harm to fish and wildlife. Considering our campus' location right along the banks of the Mississippi River, it is essential that we take care of this critical shared resource. 

The University of Minnesota's commitment to addressing storm water runoff from campus, as detailed in the campus-specific Storm Water Pollution Prevention Program (SWPPP), is to reduce pollutants to the maximum extent practicable.

How can I help?

Remember – only stormwater down the drain. No dumping of harmful materials such paint waste and auto and household chemicals. In daily life and around campus, you can help by picking up trash and pet waste and avoid use of pollutants like ice melt or salt. If you observe an illicit discharge on campus, please report those findings to the University Health & Safety On-Call Program: [email protected] or 612-626-6004 (24-hr Line)

Click to see the EPA's list of illicit discharges

Stormwater illicit discharge

Evidence of an illicit discharge on campus

Learn more about the University of Minnesota's Stormwater Program!

All Sustainability News
Hiring communications sustainability student assistant

We’re hiring a Student Sustainability Communications Assistant! Open to undergrads passionate about sustainability, social media, writing, and graphic design. Help advance campus sustainability and engagement through communications! πŸ‘‰ Apply by 11/14: Search Job ID: 370820 in the Student Job section.

The Office of Sustainability is rethinking how we engage our campusβ€”and we need your perspective. Spend 2 minutes on this quick survey to help us create impactful events and programs that reflect what you care about. Take the survey.

Hybrid bus event social graphic for November 5th 11am-2pm on Church St near Morrill Hall, hosted by Sustainability and Parking and Transportation Services

Join us on Wednesday, November 5 for the official launch of our new hybrid electric campus buses! Stop by on Church St. outside Morrill Hall from 11 a.m. - 2 p.m. for games, prizes, and cider. Take a guided tour of one of the new buses and learn about University of Minnesota sustainability initiatives, the Climate Action Plan, and campus bus routes. See you there! πŸπŸŽ‰πŸ”‹πŸ”ŒπŸšŒ Add to calendar

Hybrid bus launch specs
Farm Aid zero waste graphic at Huntington Bank

For the first time, the University of Minnesota's Huntington Bank Stadium achieved zero waste–recovering an incredible 90% of waste (46,000 pounds) generated during the Farm Aid 40 concert. Learn about Gopher Athletics sustainability efforts

Read more

Join us for conversations on campus sustainability and climate action! This fall, we’ll explore two timely topics:

  • Electrifying our Fleet – Wed, Oct 15 Β· 10–11am
    Hear from UMN experts about recent progress and future plans for electrifying campus vehicles.
  • Net Zero Buildings – Tue, Nov 11 Β· 9–10am
    Learn from UMN leaders and Darcy Solutions about designing and building net zero facilities, including the new Collections Facility powered by solar and a geothermal Darcy Well.

Free and open to the public on Zoom. More info

Green Labs logo maroon beaker with green leaf and gold block M, and white text that says Green Labs

Is your lab interested in participating in the next cohort of the Green Labs Certification Program? Want to learn more about the program? Curious about how to operate your lab more sustainably? Join the informal, one hour info session on Zoom! Reach out to Carley Rice, Sustainability Coordinator, with any questions.

Zoom Info Session: Wednesday 9/17/25, 12:00-1:00pm

Register

Focus Group Poster

Students, staff, and faculty: Share how you are experiencing the UMN campus in the face of climate change. We are looking for focus group participants to interview to understand what hardships you may be facing due to environmental changes.
Email [email protected] with questions.

Sign Up

An image of a woman doing fieldwork studies and a maroon box with white text that says "employee training series. learning module"

New online training is available for staff, faculty, instructors, and student employees! Whether you're new to sustainability or already an everyday sustainability hero on campus, you can learn how to contribute to the University's systemwide sustainability goals for the future in under 30 minutes. Be part of the U's community working to build a sustainable future together!

Enroll

the University of Minnesota's 2025 Times Higher Education rankings are highlighted here including work in clean water and health and wellbeing

The 2025 Times Higher Ed Sustainability Impact rankings evaluated 2,526 universities from 130 countries/regions, comparing their efforts to conduct teaching, research, outreach and stewardship that support a more sustainable, equitable and healthy future.

The University of Minnesota ranked among the top five in the U.S. for its work related to:

  • Clean water (No. 1 in the U.S., Tied for No. 16 in the world)
  • Health and well-being (No. 1 in the U.S., Tied for No. 54 in the world)
  • Climate action (No. 3 in the U.S., Tied for No. 70 in the world)
  • Zero hunger (No. 4 in the U.S., No. 34 in the world)
  • Partnerships for the Goals (No. 3 in the U.S.)
     

Read more

Find more information about the rankings on the THE Impact Rankings website.

Survey graphic social media

? Shape Sustainability Stories at UMN
? We want to hear from you! Help us better understand what kinds of sustainability stories and social media content are most useful, engaging, and exciting to our campus community. The short survey takes about 5 minutes to complete and is open to all. Enter your email at the end for a chance to win a $25 Visa gift card!

? Take the survey!

Thanks for helping us build a stronger, more connected sustainability community at the U! Learn more