May 26, 2026: Notice is hereby given that the Chattanooga-Hamilton County Air Pollution Control Board will receive public comments upon the application for the installation of the following air pollutant source in Hamilton County, TN.
GreyRock Materials, LLC, has proposed to install a drum mix asphalt plant at 2027East Polymer Drive, Chattanooga, TN. Annual air pollutant emissions resulting from the operation of this plant are estimated to be no more than 40.02 tons of carbon monoxide, 17.14 tons of particulate matter (PM), 14.89 tons of volatile organic compounds, 11.53 tons of nitrogen oxides (NO X ), and 2.48 tons of sulfur oxides. PM emissions from a dryer of this plant will be controlled by a cyclone followed by a filter baghouse. NO X emissions from the dryer will be reduced by the use of “low-NO X ” burners.
Questions may be directed to Alan Frazier, Bureau Engineering Manager, at (423) 643-5978. Materials concerning these proposed permitting actions may be inspected in person or online beginning at 4:30 p.m. EDT, Tuesday, May 26, 2026.
In Person:
Chattanooga-Hamilton County Air Pollution Control Bureau
CBL Center II
2034 Hamilton Place Blvd., Suite 300
Chattanooga, TN 37421-6127
Online: Documents below.
Written comments on this proposed permitting action or requests for a public hearing concerning it should be mailed or delivered to the Bureau Executive Director at the above address. Comments or requests must be received by 4:30 p.m. EDT, Friday, June 26, 2026, to be considered in the proposed permitting action. If a public hearing is requested, notice of the date, time, and location of the hearing
will be posted on the Bureau’s website, apcb.org, by Wednesday, July 1, 2026. Information about any requested public hearing may also be obtained by contacting Amber Boles, Bureau Director of Operations, at (423) 643-5970.