Important 2015 Ozone NAAQS Update

On December 20, 2017, Kentucky and other states were notified by EPA of the areas that the Agency intends to designate as nonattainment for the 2015 Ozone National Ambient Air Quality Standard (Ozone NAAQS).  These nonattainment designations are EPA’s preliminary response to the 2016 area recommendations submitted by states and are not final.  Kentucky and […]

Smith Management Group to Speak at A&WMA November Workshop

The Kentucky Chapter of the Air & Waste Management Association (A&WMA) is hosting an Environmental Workshop to be held in Louisville, Kentucky, on Friday, November 10, 2017.  Stewart McCollam will be giving a talk titled, 2015 OZONE NAAQS IMPLEMENTATION:L What’s Going On?  Hope you can join us! Stewart McCollam is a Professional Engineer in our […]

NAAQS ,Ozone

EPA Proposes to Approve RACM Determination for PM2.5 in the Louisville Area

The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the Commonwealth of Kentucky, through the Kentucky Division for Air Quality (KDAQ) on August 9, 2016, that addresses reasonably available control measures (RACM) for the Kentucky portion of the Louisville, KY–IN, nonattainment area for the 1997 Annual fine […]

EPA Makes Round 2 Final Area Designations for the 2010 1-Hour SO2 NAAQS: Impacts on Kentucky

On June 30, 2016 the EPA made its second round of designations for areas as “nonattainment,” “unclassifiable/attainment,” or “unclassifiable” for the 2010 Primary 1-Hour SO2 National Ambient Air Quality Standard (SO2 NAAQS). This round of designations was required to be completed by July 2, 2016 as a result of a consent decree issued by the […]


Monday June 13, 2016 marked the 9th day this year that the Louisville metropolitan area exceeded the 2015 revised National Ambient Air Quality Standard (NAAQS) for ozone of 70 parts per billion (ppb). This ozone season (May 1st – September 30th) started with mild weather for derby week, but the recent heat wave lead to […]