DNR events have been cancelled due to the Covid-19 outbreak. Safety of our users, attendees, partners and staff is most important. When possible, events will be rescheduled and that information will be distributed accordingly. Please check this site frequently for the latest closures, postponements and updates.
Tier 1 Assessment

The purpose of the Tier 1 assessment is to use limited site data and conservative assumptions to determine whether a site poses an unreasonable risk to public health, safety or the environment. The first form below is known as the Tier 1 report. The Tier 1 Report is followed by a guidance document.

Due to regulatory changes and compatibility issues with newer operating systems, the Tier 1 software and Tier 1 software guidance have been removed from the UST web page.  The Tier 1 software should no longer be used or submitted with the Tier 1 Report. 

The Tier 1 Guidance document has been revised to include the Pathway Evaluation Worksheet (Appendix H).  The worksheet or flowcharts can assist with completing the Tier 1 Report.

The Tier 1 Report must now be completed using current DNR Form 542-0165, which has been updated to reflect regulatory changes.  If you have questions regarding the new Tier 1 reporting procedures, please contact the DNR project manager.