|Marine Corps Base, Camp Lejeune|
The North Carolina Division of Air Quality (NCDAQ) regulates 105 specific
Toxic Air Pollutants or TAPís in addition to the 188 Hazardous Air
Pollutants or HAPís regulated by the EPA through National Emission
Standards for Hazardous Air Pollutants or NESHAPís.
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)
Camp Lejeune must demonstrate compliance with the AALís
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 sourceís potential annual emissions must be evaluated for TAPís and
if a net increase in even one TAP will result, than an air dispersion modeling
demonstration is again needed.
If AALís 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
For more information please visit the North Carolina Division of Air Quality website.
Camp Lejeuneís 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