V Title V Permit  Aerospace NESHAP Noise Management  APIMS Ozone Depleting Substances         Open Burning   NC Toxics Emissions Inventory Contacts

The North Carolina Division of Air Quality (NCDAQ) regulates 105 specific Toxic Air Pollutants or TAP’s in addition to the 188 Hazardous Air Pollutants or HAP’s regulated by the EPA through National Emission Standards for Hazardous Air Pollutants or NESHAP’s. 

Each TAP has an associated regulatory Acceptable Ambient Level (AAL) or concentration of that pollutant that must be maintained at the facilities fenceline.  Because of public receptors inside the Camp Lejeune boundaries such as the New River or NC highway 172 the state divided the Base into three toxics zones (A, B, and C) shown here.

Camp Lejeune must demonstrate compliance with the AAL’s and the toxics regulations found in 15A NCAC.  Each TAP has a de minimis level and if all sources within a zone emit that TAP at a level over the de minimis amount then an air dispersion modeling demonstration must be completed to evaluate the concentration of that pollutant at points along the fenceline of the zone.  Further, when any new air emission source is constructed at the Base that source’s potential annual emissions must be evaluated for TAP’s and if a net increase in even one TAP will result, than an air dispersion modeling demonstration is again needed.

If AAL’s for a TAP are likely to be exceeded than it might be necessary to impose usage limits on sources such as fuel consumption, material usage such as paint or welding rods, and/or hours of operation.  These limits as well as the model input values used to determine our current TAP concentration are part of our Title V Permit conditions.

For more information please visit the North Carolina Division of Air Quality website.

Camp Lejeune’s most recent toxic modeling demonstration will soon be available on this site.

Environmental Management Division	Marine Corps Base Camp Lejeune
Installations & Environment Department	Last Updated:  August 20, 2003