Tuesday, January 27, 2026, 12 PM – 1:30 PM
Warner Norcross + Judd LLP
150 Ottawa Ave. NW, Grand Rapids, MI 49503
Parking at 150 Ionia Ave. NW
(elevator button 15R)

Please join us at our upcoming Lunch and Learn program on January 27, 2026, from 12:00 to 1:30 PM.

Two senior air dispersion modelers—Stephanie Hengesbach (Air Quality Division, Michigan Department of Environment, Great Lakes, and Energy [EGLE]) and Brian Leahy (Barr Engineering)—will present timely and practical insights on air dispersion modeling issues affecting Michigan-based facilities.

Topics will include:

• Current EPA policy and implementation guidance

• EGLE Policy and Procedure No. AQD-022

• Nonattainment designation implications

• EGLE’s recently published modeling guidance documents

• Current and proposed air impact thresholds

• Challenges associated with cumulative impacts analyses

• Requirements under Michigan’s air toxics policy

• Tools and techniques to refine air dispersion modeling analyses

The session will conclude with dedicated time for audience questions and discussion.

We hope you can join us for this informative session.

Parking will be validated at the garage located at 150 Ionia Ave NW. Use elevator button 15R to join us. Lunch will be provided beginning at noon.