Proposed Fact Sheet Revisions Allow Additional Flexibility Without Permit Modification 10/24/2017 1:42:00 PM View Count 3190 The DNR is proposing to revise the “Is Modification to My Air Construction Permit Needed?” fact sheet and corresponding FAQ to incorporate updates made to 40 CFR Part 51 Appendix W.
Opportunity for Comment on Proposed Dispersion Modeling Data and Guidance Updates 11/19/2015 3:40:00 AM View Count 4421 The DNR is proposing updates to the pre-processed meteorological data for AERMOD, new default background concentrations, updated guidance, and a new air resource availability summary.