AQ_GEN_PIO_20231012_MISC_PressRls

Website: www.deq.nc.gov
Facebook: www.facebook.com/ncdeq
Twitter: @NCDEQ
1601 Mail Service Center, Raleigh, NC 27699-1601

Roy Cooper, Governor Elizabeth S. Biser, Secretary

Release: IMMEDIATE Contact: Shawn Taylor Date: Oct. 12, 2023 Phone: [phone]
State Grants Title V Air Quality Permit to CertainTeed – Oxford Facility
RALEIGH – The N.C. Department of Environmental Quality’s Division of Air Quality (DAQ), has issued a
Title V air quality permit to CertainTeed, LLC - Oxford Facility. The permit will allow the company to construct
and operate a new fiberglass mat manufacturing facility beside its existing asphalt roofing manufacturing plant in
Granville County.
The new CertainTeed facility will be considered a major source facility because potential uncontrolled air
emissions of volatile organic compounds are above 100 tons per year and potential uncontrolled emissions of
total hazardous air pollutants are above 25 tons per year. However, these emissions will be controlled by two
parallel regenerative thermal oxidizers. A dust collector would also control fugitive dust in the finishing area.
The facility is subject to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Wet-
Formed Fiberglass Mat Production and the NESHAP for Stationary Reciprocating Internal Combustion Engines.
Air dispersion modeling reviewed by DAQ shows the facility’s emissions of formaldehyde are expected to
comply with applicable standards and will not cause an exceedance of the state’s acceptable ambient level for
this pollutant. In response to public comment, DAQ reviewed additional modeling analyzing the combined
formaldehyde emissions from both the new and existing CertainTeed plants; this modeling found that the
combined formaldehyde emissions are also expected to be below the acceptable ambient level.
DAQ held an extended public engagement period to solicit public comments on a draft of the air permit. The
Division shared project information in English and Spanish with local governments, health departments,
churches and other nearby community organizations. Division staff thoroughly reviewed the comments received
on the draft permit during the comment period and addressed all comments in the final permit review.
The final permit includes conditions that ensure ambient levels of all pollutants beyond the facility’s fence line
comply with emission standards, including applicable health-based standards. The facility is also subject to
recordkeeping requirements and regular inspections.
Copies of the final permit, final permit review, permit application and application addendum, and a one-page
project fact sheet are available online.
If you need this information in Spanish or another language, please call 919-609-2189 or send an email
to [e-mail].
Si necesita esta información en español por favor llame al 919-609-2189 o mande un correo
a [e-mail].
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