Beginning September 1, the application of nitrogen fertilizer in the fall and on frozen soil will be restricted in areas vulnerable to groundwater contamination. This will also apply to Drinking Water Supply Management Areas (DWSMAs) with elevated nitrate levels.

MDA staff have prepared a presentation to explain the purpose of the Groundwater Protection Rule, where the nitrogen fertilizer restrictions apply, and the exceptions to the rule. View the prerecorded presentation or join us for a live webinar through WebEx on August 12, 2020 (details below).

Prerecorded Presentation (video)

View the Nitrogen Fertilizer Fall Application Restrictions video (YouTube). Posted July 30, 2020.

Live Virtual Webinar

Join us for the live webinar presentation on August 12, 2020 from 10:00-11:00 am (CDT).

To join the webinar please use the link below and enter the password "Groundwater". Participants will be encouraged to submit questions through a Q&A pop-up box. All attendees will be muted and will have their personal video turned off upon entering the meeting.

If you are new to Webex, additional resources are available.


Staff are available to answer questions by email or phone, or you can submit questions during the live webinar. See the “CONTACT US” box for more information.