Supervise The Crossing Of A Contaminated Area
031-503-3004
Conditions: Given a unit with MOPP gear; organic decontamination equipment (ex: M11/M13
DAP, M258A1/M291/M295 decon kits); organic chemical and radiological detection devices
(IM93, IM174, AN/VDR2, M8/M9 detector paper, CAM, etc.); shielding materials (such as
sandbags); a map of the operational area; commander's Operational Exposure Guidance (OEG)
including turn-back dose and turn-back dose rate; and an overlay of the radiologically,
chemically, or biologically contaminated area. You must enter, cross, and exit (or operate in)
this contaminated area.
Standards: Supervise the crossing of a unit through an NBC contaminated area without
producing NBC casualties or spreading contamination.
TRAINING AND EVALUATION
Performance Steps:
NOTE: The following procedures are the same whether you move to a contaminated area or the
contamination comes to you.
1. Plan operations in an NBC contaminated environment.
a. Disconnect power supplies from electronic equipment not in use (nuclear attack).
b. Limit amount of possible troop exposure.
NOTE: Radiation levels increase as you approach the center of the contaminated area, and
decrease as the far side is approached.
(1) Follow OEG (for radiological contamination).
(a) Turn-back dose (Dtb).
(b) Turn-back dose rate (Rtb).
(c) Actions to take on reaching the turn-back dose or turn-back dose rate.
(2) Determine size of contaminated area.
(a) Select the shortest routes (primary and alternate) possible with the lowest amount of
contamination (dose rate or chemical agent) and permitting the fastest travel based on mission,
enemy, terrain, troops, and time (METT-T) available.
(b) Delay entry time as long as possible in accordance with METT-T.
(3) Use MOPP Analysis (for chemical and biological contamination).
c. Pre-coordinate decontamination support.
2. Conduct Pre-Combat Checks.
a. Check detection equipment.
(1) Chemical detection equipment is operational. Detector paper is attached to clothing and
equipment.
(2) Radiacmeters and dosimeters are operational.
(a) IM93/IM147 dosimeters are zeroed prior to the mission.
(b) DT236 dosimeters have been read by unit AN/PDR75 operator prior to the mission.
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