|Operations or Services|
|Range operations, weapons and ordnance||1||4||114||14.4||25,420||50%|
|Skeet and trap range, recreational services||1||4||1.9||0.5||6,760||0%|
|Fire services, ranges|
|Ambulance drivers or EMT, range||1||29||239||11.2||6,440||6.9%|
aData extracted from the Defense Occupational and Environmental Health Readiness System—Industrial Hygiene. Army industrial hygiene program offices use the concept of similar exposure groups. A person who has a given job classification may perform many duties. A sample and its TWA may have been determined to be valid for many processes that a worker may have been performing during the time when the sample was taken.
bNot otherwise classified.
Source: Personal communication, J. Seibert, Office of the Deputy Under Secretary of Defense for Installations and Environment, July 2, 2012.