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Table 3-6. Steps for the Triple-Buddy Method MOPP-Gear Exchange With the M40A1 and M42 (Continued)
Steps
Contamination
Required Equipment
Procedures
Type
3. Decon mask
Chemical/
Two IEDKs per person
Buddy #1 uses an IEDK to wipe Buddy #2’s eye-lens outserts from the top down.
and hood—
biological
(NOTE: Do not press so hard that you break Buddy #2's face-mask seal.) He
removes gross
then wipes the rest of Buddy #2’s hood from the top of the head to the bottom of
contamination.
the hood (see Figure 3-5, page 3-9). After he has finished wiping Buddy #2’s
mask, he must wipe his own gloves in preparation for rolling Buddy #2’s hood. He
starts from the rear and rolls Buddy #2’s hood, using 2-inch tucks, until it reaches
the center of his head (see Figure 3-6, page 3-9). He rolls the front of Buddy #2’s
hood tightly under the outlet valve and filter. He ensures that the hood is off of
Buddy #2's garment (see Figure 3-7, page 3-10).
Radiological
Three containers
Buddy #1 wipes Buddy #2’s mask and hood with a sponge dipped in hot, soapy
(about 3-gallon
water and rinses them with a sponge dipped in clean water. He dries Buddy #2’s
capacity)
mask and hood with paper towels or rags. Buddy #2 wipes down his own gloves.
Two sponges
NOTE: Cool, soapy water is not as effective for removing contamination, but
Soapy water
it can be used if you scrub longer. If the water supply is limited, use drinking
Rinse water
water from your canteen with a wet sponge or cloth. Only Buddy #2’s mask and
Paper towels or similar
hood will be decontaminated and rolled at this time.
drying material
4. Remove
All
Two discard containers
Buddy #1 grasps Buddy #2’s outside overgarment jacket, unsnaps the snaps
overgarment
contamination
(for example, plastic
individually, and unties the drawcord at the bottom of the jacket. He unfastens the
overboots
bags)
Velcro at the wrist of Buddy #2's jacket and then refastens it. He unfastens the
limits the spread of
Velcro closure over the zippered front of Buddy #2's jacket and unzips the jacket.
agents and helps
Buddy #1 grasps Buddy #2's jacket by the shoulders and instructs him to make a fist.
He then pulls the jacket down and away from Buddy #2, ensuring that the black part
prevent agents
of the jacket is not touched (see Figure 3-20, page 3-26). He lays Buddy #2's
from penetrating
overgarment jacket on the ground, black side up.
(It will be used to stand on later.)
through to the
Buddy #1 carefully unfastens and unzips Buddy #2's trousers. NOTE: Do not
undergarments or
loosen Buddy #2's waist tabs. He instructs Buddy #2 to break the seals on his
the skin.
overboots by alternately stepping on each heel and pulling up on his foot. He grasps
Buddy #2's trousers and pulls them down to his knees. Buddy #1 instructs Buddy #2
to walk out of his trousers/overboots, taking care not to step on the contaminated
side of the overgarment. If Buddy #2 is wearing overboots, Buddy #1 removes
Buddy #2's trousers first then helps him step out of his overboots onto the black side
of the jacket. Buddy #2 should step onto the jacket wearing his mask, BDU, combat
boots, and gloves.
Table 3-6. Steps for the Triple-Buddy Method MOPP-Gear Exchange With the M40A1 and M42 (Continued)
Steps
Contamination
Required Equipment
Procedures
Type
5. Remove gloves.
All
Discard container
The soldier holds the fingertips of his gloves and partially slides his hand out. When
contamination
(from Step 4)
the fingers of both hands are free, he holds his arms away from his body and lets the
gloves drop.
6. Put on
All
One set of chemical
Buddy #1 opens the package containing the new overgarment without touching the
overgarment.
contamination
protective
inside of the package. Buddy #2 pulls out the overgarment without touching the
overgarments per
outside of the package. He puts on the overgarment and fastens it, leaving the
person
trouser legs open. Do not reverse roles. Only Buddy #2 will put on the clean
overgarments at this time.
FM 3-5/MCWP 3-37.3
Figure 3-20. Removing the Outer Garment
3-26 Operational Decon
Table 3-6. Steps for the Triple-Buddy Method MOPP-Gear Exchange With the M40A1 and M42 (Continued)
Steps
Contamination
Required Equipment
Procedures
Type
7. Put on
All
One set of chemical
Buddy #1 opens the package of clean overboots without touching the inside of the
overboots and
contamination
protective overboots
package. Buddy #2 removes the overboots without touching the outside of the
gloves.
per person
package, puts them on, and fastens his trouser legs. Buddy #1 opens the package
One set of chemical
of clean gloves without touching the inside of the package. Buddy #2 removes the
protective gloves per
gloves without touching the outside of the package and puts them on. Buddy #2
person
puts on the M9 detector paper. Do not reverse roles. Only Buddy #2 will put on
M9 detector paper
clean overboots and gloves at this time. NOTE: The gloves and overboots will
have a light powdery coating. This is normal. It is not necessary to remove
it. It will not affect the protective qualities.
8. Secure hood.
All
One IEDK
Buddy #1 wipes his rubber gloves with an IEDK. He unrolls Buddy #2's hood and
contamination
attaches the straps and tightens the neck cord. He checks the clips and neck cord
on Buddy #2's hood. Buddy #1 and Buddy #2 reverse roles and repeat steps 2
through 8.
9. Secure gear.
All
One chemical
The soldier secures his individual gear and puts it back on. He puts on a new
contamination
protective helmet
chemical protective helmet cover and moves to the AA. He uses the buddy system
cover per person
to check the fit of all secured gear.
Table 3-7. Steps for the CVCUS/CPU (Triple-Buddy Method) MOPP-Gear Exchange With the
M40A1, M42, and M43 (Aviation and Armor)
Steps
Contamination
Required
Procedures
Type
Equipment
All
Four long-handled
The soldier mixes three parts earth to two parts STB.
1. Decon gear
contamination
brushes
removes gross
A large piece of
contamination
plastic (poncho or
from individual
similar material)
gear (weapons,
helmet, load-bear-
ing equipment,
and mask carrier).
Chemical/
One 30-gallon
The soldier removes and discards the chemical protective helmet cover if worn. He
biological
container, STB dry
brushes or rubs STB onto his individual gear
(helmet and mask carrier) and the hose
mix, and one IEDK
of the M43 mask if worn. He gently shakes off any excess STB and sets aside his gear
on an uncontaminated surface.
Radiological
Hot, soapy water
The soldier brushes or wipes radiological contamination from his individual gear. He
washes it with hot, soapy water
(if available) and sets it aside to dry on an
uncontaminated surface (plastic, poncho, or similar material).
2. Prepare to
All
Cutting tool
Buddy #1 unfastens the shoulder straps on Buddy #2's hood, pulls them over his
decon
contamination
shoulder, and reattaches them to the Velcro fastener. He loosens the drawcord on
facilitates later
Buddy #2's hood and ties off the microphone cord to the hose of his mask. He
removal of
removes the M9 detector paper from Buddy #2's overgarment. He unzips Buddy #2's
overgarment
trouser legs and rolls a cuff in each trouser leg, ensuring that the cuffs do not come
trousers and
above the top of his overboots. He unfastens or cuts the fasteners on Buddy #2's
overboots.
overboots. NOTE: A soldier can do this step by himself or with the help of his
buddy.
Table 3-7.
Steps for the CVCUS/CPU (Triple-Buddy Method) MOPP-Gear Exchange With the
M40A1, M42, and M43 (Aviation and Armor) (Continued)
Steps
Contamination
Required
Procedures
Type
Equipment
3. Decon mask
Chemical/
Two IEDKs per
If wearing the M42 or M43 mask, use the buddy-team method (three buddies). Buddy #1
and hood
biological
person
uses an IEDK to wipe Buddy #2's hood, mask, canister, and hose of the M42 or M43 mask.
removes gross
NOTE: Do not press so hard that you break Buddy #2's face-mask seal. He uses as
contamination.
many wipes as necessary. Buddy #3 wipes off his gloves and holds Buddy #1's hose and
canister away from his contaminated overgarment. After Buddy #1 wipes Buddy #2’s mask
and then his own gloves, he rolls Buddy #2’s hood. He starts from the rear and rolls Buddy
#2’s hood, using 2-inch tucks, until it reaches the center of his head (see Figure 3-6, page
3-9). He rolls the front of Buddy #2’s hood tightly under the outlet valve and filter. He
ensures that the hood is off of Buddy #2's garment (see Figure 3-7, page 3-10).
Radiological
Three containers
Buddy #1 wipes Buddy #2's mask and hood with a sponge dipped in hot, soapy water and
(about 3-gallon
rinses them with a sponge dipped in clean water. He dries Buddy #2's mask and hood with
capacity)
paper towels or rags. Buddy #2 wipes his own gloves. NOTE: Cool, soapy water is not
Two sponges
as effective for removing contamination, but it can be used if you scrub longer. If the
Soapy water
water supply is limited, use drinking water from you canteen with a wet sponge or cloth. If
Rinse water
water is not available, brush and dust off the radioactive dust particles. Do not reverse
Paper towels or
roles. Only Buddy #2's hood will be decontaminated and rolled at this time.
similar drying
material
4. Remove
All
Two discard
Buddy #1 opens all the zippers on Buddy #2’s CVCUS in the following order: wrist, ankles,
CVCUS
contamination
containers (for
and front. While standing behind Buddy #2 and adjacent to the clean area, Buddy #1
overboots
example,
grasps the shoulders of Buddy #2’s CVCUS and instructs him to make a fist to ensure that
limits the
plastic bags)
his gloves do not come off. He then pulls Buddy #2's CVCUS down below his knees,
turning it inside out. He has Buddy #2 to partially remove his overboots by alternately
spread of
stepping on each heel and pulling up on his foot. While kneeling, Buddy #1 grasps one leg
contamination.
of Buddy #2’s CVCUS and his overboot and instructs him to remove his leg and foot
simultaneously. As Buddy #2 removes each leg and foot, he steps directly onto the clean
area. Buddy #1 decons his gloves again.
Table 3-7. Steps for the CVCUS/CPU (Triple-Buddy Method) MOPP-Gear Exchange With the
M40A1, M42, and M43 (Aviation and Armor) (Continued)
Steps
Contamination
Required Equipment
Procedures
Type
5. Remove
All contamination
Two discard
Buddy #2 holds the fingertips of his gloves and partially slides his hand out. When the
CPU jacket/
containers
fingers of both hands are free, he holds his arms away from his body and lets the gloves
gloves.
drop. Buddy #1 unzips and removes Buddy #2’s CPU jacket by grasping it at the shoulders
and pulling down, turning it inside out. He places it on the clean area with the clean side up.
He removes Buddy #2’s protective glove inserts.
6. Remove
All contamination
Two discard
Buddy #1 instructs Buddy #2 to stand on the clean area (but not on the CPU jacket) and
combat boots/
containers
unlace his combat boots. Buddy #2 partially removes his boots by alternately stepping on
CPU pants.
each heel and pulling up on his foot. Buddy #1 grasps one of Buddy #2's boots and
instructs him to remove his foot. As Buddy #2 removes his foot, he steps directly onto the
clean side of the CPU jacket. Repeat the procedure on the other foot. Next, Buddy #1
removes Buddy #2’s CPU drawers by pulling down on the sides and turning them inside
out. Buddy #2 is now stripped to his underwear and mask and is ready to put on new
clothing. NOTE: If Buddy #2’s feet come in contact with the contaminated pants of
the CPU, decon them.
7. Put on CPU/
All contamination
One CPU/CVCUS per
Buddy #1 opens the package containing the new undergarment without touching the inside.
CVCUS.
person
Buddy #2 pulls out the undergarment without touching the outside of the package. He puts
on the new clothing in the following order: CPU drawers, CPU jacket, combat boots, and
CVCUS (over the CPU drawers).
8. Put on
All contamination
One set of chemical
Buddy #1 opens the package of clean overboots without touching the inside of the package.
overboots and
protective over-
Buddy #2 removes the overboots without touching the outside of the package and puts
gloves.
boots per person
them on. Buddy #1 opens the package of clean gloves without touching the inside of the
One set of chemical
package. Buddy #2 removes the gloves without touching the outside of the package and
protective gloves
puts them on. Buddy #2 puts on the M9 detector paper.
per person
M9 detector paper
9. Secure
Chemical/
One IEDK
Buddy #1 wipes his rubber gloves with an IEDK. He unrolls Buddy #2 hood and attaches
hood.
biological
the straps and tightens the neck cord. He checks the snaps and neck cord on Buddy #2’s
hood to ensure that they are closed. Buddy #1 and Buddy #2 reverse rolls and repeat steps
2 through 9.
10. Secure
All contamination
One chemical
The soldier secures his individual gear and puts it back on. He puts on a new chemical
gear.
protective helmet
protective helmet cover and moves to the AA. He uses the buddy system to check the fit of
cover per person
all secured gear.
Table 3-8. Steps for the Individual (Emergency Method) MOPP-Gear Exchange
Steps
Contamination
Required Equipment
Procedures
Type
Chemical/
One IEDK
The soldier uses M8 detector paper to determine the areas of gross contamination
1. Decon gear
biological
and field-expedient absorbents
(sand, dirt, or rags) to remove gross liquid
removes gross
contamination. He should take special care to avoid touching these areas during
contamination from
individual gear
overgarment removal. He uses an IEDK to decon his individual gear
(helmet,
load-carrying equipment (LCE), weapon, and mask carrier).
(weapon, helmet,
load-bearing
equipment, and
mask carrier).
Radiological
Hot, soapy water
The soldier brushes or wipes radiological contamination from his individual gear.
He washes it with hot, soapy water (if available) then sets it aside to dry on an
uncontaminated surface (plastic, poncho, or similar material).
2. Prepare to
All
Cutting tool
The soldier unfastens the shoulder straps on his hood, pulls them over his
decon
contamination
shoulders, and reattaches them. He loosens the drawcord on the hood of his
facilities removal of
protective mask. NOTE: If wearing the M43 protective mask, tie off the
overgarment
microphone cord to the hose of the mask. He removes the M9 detector paper
trousers and
from his overgarment and unties/cuts the drawcords on the trouser legs of his
overboots.
overgarment. He unzips the trouser legs and rolls a cuff in each trouser leg,
ensuring that the cuffs do not come above the top of his overboots. He unfastens
or cuts the fasteners on the overboots.
3. Decon mask and
Chemical/
One IEDK
The soldier wipes the eye-lens outserts on his mask from the top down. He wipes
hood
biological
his mask and gloves and rolls his hood. He grasps the straps of the hood and lifts
removes gross
the hood off his shoulders and partially over his head until most of the back of his
contamination from
head is exposed. He rolls the hood, starting at the chin, and works around the
the mask and hood.
entire mask until the rolled hood will stay up and off of his shoulders. He tucks the
straps and neck cord into the roll. He rolls the hood tightly against his mask with-
out pulling the hood off the back of his head. He tucks the tail between the upper
part of the canister and the mask.
(Tie the tail over and under the hose for the
M42 mask.)
The soldier removes the applicator mitt from the package with his nondominant
hand. Making a "V", he wipes down his hand, paying particular attention to the
areas between his fingers. Once he has thoroughly wiped down his dominant
hand, he must insert it into the applicator mitt and thoroughly wipe down his other
hand. He gently pats the voicemitter with black powder until it is covered.
Table 3-8. Steps for the Individual (Emergency Method) MOPP-Gear Exchange (Continued)
Steps
Contamination
Required Equipment
Procedures
Type
3. Decon mask
The soldier starts at the top of his hood and wipes down and away, patting until the
and hood
surface of the hood is covered by the black powder. He rewipes his gloves, starting
(continued).
with his nondominant hand.
The soldier lifts the hood off of his shoulders by grasping the shoulder straps in one
hand and placing the other hand on top of the head and pulling the hood over his
head until the elastic band is over his knuckles and most of the back of his head is
exposed. He should not expose his ears or pull the hood completely over his face or
mask. He tucks his shoulder straps, underarm straps, and the rolled portion of his
hood under the elastic band.
Follow these procedures when using the M40A1 mask with the quick-doff hood: The
soldier removes the underarm straps from the front of his hood and places them over
his shoulders. He refastens them on the front of his hood. NOTE: Anytime you
decon your mask or roll your hood, place two fingers on the voicemitter of the
mask to prevent accidental breakage of the seal.
Radiological
Three containers
The soldier wipes his mask and hood with a sponge dipped in hot, soapy water and
(about 3-gallon
rinses them with a sponge dipped in clean water. He dries the mask and hood with
capacity)
paper towels or rags. NOTE: Cool, soapy water is not as effective for removing
Two sponges
contamination, but it can be used if you scrub longer. If water is not available,
Soapy water
soldier should brush and dust off the radioactive dust particles.
Rinse water
Paper towels or simi-
lar drying material
4. Remove over-
All
Two discard
The soldier grasps his overgarment jacket and unsnaps the snaps individually. He
garment/
contamination
containers
unties the drawcord at the bottom of the jacket. He unfastens the Velcro at the waist
overboots
(recommend plastic
and then refastens it. He unfastens the Velcro closure over the zippered front of the
prevents agent
bags).
jacket and unzips the jacket. He grasps the front of the jacket and pulls the jacket
from penetrating
Chemical protective
back until it is off his shoulders. He puts his arms behind his back and works his
through to the
suit with protective
arms out of the sleeves. He should not let the outside of the jacket touch his body.
undergarments or
gloves and
When the jacket is off, he lays it on the ground with the black side up. He unfastens
the skin.
overboots
and unzips his trousers. He should not loosen his waist tabs. He loosens his
overboots by alternately stepping on each heel and pulling up on his foot. He grasps
his trousers and pushes them down to his knees. He walks out of his trousers/
overboots simultaneously and steps onto the black side of the jacket. He steps onto
the jacket wearing his mask, BDU, combat boots, and gloves.
Table 3-8. Steps for the Individual (Emergency Method) MOPP-Gear Exchange (Continued)
Steps
Contamination
Required Equipment
Procedures
Type
5. Remove
All
Two discard
The soldier wipes around the edges of the packages containing the new items
gloves.
contamination
containers (from
(gloves, overgarments, and overboots) with an IEDK. He opens the new packages.
step 4)
He holds the fingertips of his gloves and partially slides his hands out. When the
One IEDK
fingers of both hands are free, he holds his arms away from his body and lets his
gloves drop.
6. Put on
All
One set of chemical
The soldier removes the overgarment from its package without touching the outside.
overgarment.
contamination
protective overgar-
He puts on the overgarment and fastens it, leaving the trouser legs open until he
ments per person
puts on the new overboots.
One IEDK
7. Put on
All
One set of chemical
The soldier removes the overboots (one at a time) from their package without
overboots and
contamination
protective overboots
touching the outside and puts them on. He removes the gloves from their package
gloves.
per person
without touching the outside, puts them on, and fastens his trouser legs. NOTE: The
One set of chemical
gloves and overboots will have a light powdery coating. This is normal. Do
protective gloves per
not remove it. It will not affect the protective qualities.
person
8. Secure hood.
All
One chemical
The soldier secures his individual gear and puts it back on. He puts on a new
contamination
protective helmet
chemical protective helmet cover and moves to the AA.
cover per person
Table 3-9. Steps for the CVCUS/CPU, Individual (Emergency Method) MOPP-Gear Exchange
Steps
Contamination
Required Equipment
Procedures
Type
Chemical/
One IEDK
The soldier uses M8 detector paper to determine the areas of gross contamination
1. Decon gear
biological
and field-expedient absorbents
(sand, dirt, or rags) to remove gross liquid
removes gross
contamination
contamination. He should take special care to avoid touching these areas during
overgarment removal. He uses an IEDK to decon his individual gear (helmet LCE,
from individual
gear (weapon,
weapon, and mask carrier).
helmet, load-
bearing
equipment, and
mask carrier).
Radiological
Hot, soapy water
The soldier brushes or wipes radiological contamination from his individual gear.
He washes it with hot, soapy water (if available) then sets it aside to dry on an
uncontaminated surface (plastic, poncho, or similar material).
2. Prepare to
All
Cutting tool
The soldier unfastens the shoulder straps on his hood, pulls them over his
decon
contamination
shoulders, and reattaches them to the front of the hood. He loosens the drawcord
facilities removal
on the hood of his protective mask. NOTE: If wearing the M43 protective mask,
of overgarment
tie off the microphone cord to the hose of the mask. He removes the M9
trousers and
detector paper from his overgarment and unties/cuts the drawcords on the trouser
overboots.
legs of his overgarment. He unzips the trouser legs and rolls a cuff in each trouser
leg, ensuring that the cuffs do not come above the top of his overboots. He
unfastens or cuts the fasteners on the overboots.
3. Decon mask
Chemical/
One IEDK
The soldier wipes the eye-lens outserts on his mask from the top down. He wipes
and hood
biological
his mask and gloves and rolls his hood. He grasps the straps of the hood and lifts
removes gross
the hood off his shoulders and partially over his head until most of the back of his
contamination
head is exposed. He rolls the hood, starting at the chin, and works around the
from the mask and
entire mask until the rolled hood will stay up and off of his shoulders. He tucks the
hood.
straps and neck cord into the roll. He rolls the hood tightly against his mask without
pulling the hood off the back of his head. He tucks the tail between the upper part
of the canister and the mask.
(Tie the tail over and under the hose for the M42
mask.)
The soldier removes the applicator mitt from the package with his nondominant
hand. Making a "V", he wipes down his hand, paying particular attention to the
areas between his fingers. Once he has thoroughly wiped down his dominant
hand, he must insert it into the applicator mitt and thoroughly wipe down his other
hand.
Table 3-9. Steps for the CVCUS/CPU, Individual (Emergency Method) MOPP-Gear Exchange (Continued)
Steps
Contamination
Required Equipment
Procedures
Type
3. Decon mask and
The soldier gently pats the voicemitter with black powder until it has been cov-
hood (continued).
ered. He starts at the top of his hood and wipes down and away, patting until the
surface of the hood is covered by the black powder. He rewipes his gloves, start-
ing with his nondominant hand.
The soldier lifts the hood off of his shoulders by grasping the shoulder straps in
one hand and placing the other hand on top of the head and pulling the hood
over his head until the elastic band is over his knuckles and most of the back of
his head is exposed. He should not expose his ears or pull the hood completely
over his face or mask. He tucks his shoulder straps, underarm straps, and the
rolled portion of his hood under the elastic band.
Follow these procedures when using the M40A1 mask with the quick-doff hood:
The soldier removes the underarm straps from the front of his hood and places
them over his shoulders. He refastens them on the front of his hood. NOTE:
Anytime you decon your mask or roll your hood, place two fingers on the
voicemitter of the mask to prevent accidental breakage of the seal.
Radiological
Three containers
The soldier wipes his mask and hood with a sponge dipped in hot, soapy water
(about 3-gallon
and rinses them with a sponge dipped in clean water. He dries the mask and
capacity)
hood with paper towels or rags. NOTE: Cool, soapy water is not as effective
Two sponges
for removing contamination, but it can be used if you scrub longer. If water
Soapy water
is not available, the soldier should brush and dust off the radioactive dust
Rinse water
particles.
Paper towels or similar
drying material
4. Remove
All
Two discard containers
The soldier opens all the zippers on his CVCUS in the following order: wrists,
CVCUS/
contamination
(plastic bags)
ankles, and front. While standing adjacent to the clean area, he grasps the front
overboots.
of his CVCUS and pulls it off of his shoulders. He makes a fist to ensure that his
gloves do not come off when removing his CVCUS. He puts his arms behind his
back and works his arms out of the sleeves. He loosens his overboots by alter-
nately stepping on each heel and pulling up on his foot. He pulls his CVCUS
down below his knees, turning it inside out. He should not let the outside of his
CVCUS touch his body. He walks out of his CVCUS/overboots simultaneously
and steps onto the clean area.
Table 3-9. Steps for the CVCUS/CPU, Individual (Emergency Method) MOPP-Gear Exchange (Continued)
Steps
Contamination
Required Equipment
Procedures
Type
5. Remove jacket/
All
Two discard containers
The soldier wipes his gloves and around the edges of the packages containing
gloves.
contamination
the new items (gloves, undergarments, and overboots) with an IEDK. He opens
the new packages. He holds the fingertips of the gloves and partially slides his
hands out. When the fingers of both hands are free, he holds his arms away from
his body and lets the gloves drop.
The soldier opens all Velcro wrist fasteners and unzips his CPU jacket. He
removes the CPU jacket by grasping it at the shoulders and pulling down, turning
it inside out. He places the jacket on a clean area with the clean side up. He
removes the protective glove inserts.
6. Remove combat
All
Two discard containers
The soldier unlaces his combat boots, removes them, and steps directly onto his
boot/CPU pants.
contamination
CPU jacket. He takes off his CPU drawers by placing his hands beneath the
waistband and removing them, turning them inside out. The soldier is now
stripped to his underwear and mask and is ready to put on his new clothing.
The soldier follows these procedures if wearing the BDU. He stands on the clean
area (but not on the CPU jacket) and unlaces his combat boots. He partially
removes his boots by alternately stepping on each heel and pulling up on his
foot. He removes each trouser leg and combat boot simultaneously and steps
directly onto the clean side of the CPU jacket.
7. Put on CPU.
All
One set of chemical
The soldier removes the undergarment from the package without touching the
contamination
protective
outside. He puts on the undergarment in the following order: CPU drawers,
undergarments per
CPU jacket, combat boots, and CVCUS (over the CPU drawers).
soldier
8. Put on overboots
Chemical/
One set of chemical
The soldier removes the overboots from their package without touching the
and gloves.
biological
protective overboots
outside and puts them on. He removes the gloves from their package without
per soldier
touching the outside and puts them on. He puts on the M9 detector paper.
One set of chemical
protective gloves per
soldier
M9 detector paper
Table 3-9. Steps for the CVCUS/CPU, Individual (Emergency Method) MOPP-Gear Exchange (Continued)
Steps
Contamination
Required Equipment
Procedures
Type
9. Secure hood.
Chemical/
One IEDK
The soldier wipes his rubber gloves with an IEDK. He unrolls his hood, attaches
biological
the straps, and tightens the neck cord.
10. Secure gear.
All
One chemical
The soldier secures his individual gear and puts it back on. He puts on a new
contamination
protective helmet
chemical protective helmet cover and moves to the AA.
cover per soldier
Chapter 4
Thorough Decon
Thorough-decon operations reduce and sometimes eliminate
contamination. They restore combat power by removing nearly all
contamination from unit and individual equipment so that troops can
operate it safely for extended periods at reduced MOPP levels. Since a
small risk of contamination remains, periodic checks with the CAM, the
M8/M9 detector paper, or the M256A1 detector kit must be performed
after each operation. A thorough decon can be done as part of
reconstitution, or it can be done to support operations throughout the
battlefield. After a thorough decon, the unit moves out of the decon site
into a tactical AA. The unit, while in this tactical assembly, may undergo
reconstitution or prepare for future operations. Combat-service-support
(CSS) elements replenish combat stocks, refit equipment, and replace
personnel and equipment, as required. The contaminated unit, with some
assistance from a chemical unit, does the DTD. A supporting chemical unit
does the DED or DAD. The planning considerations that are required to
conduct thorough-decon operations and the methods that various chemical
units (decon and smoke/decon) use to conduct DTD/DED are discussed in
this chapter. The exact layout of a thorough-decon site is determined by
METT-TC.
PLANNING
4-1. A thorough decon is the most effective type of decon but is the most
resource intensive. A combination of weather conditions, agent used, mission
requirements, time, troops, and supplies available may make weathering the
decon option of choice. Commanders decide which type of decon is required
based on the recommendation of the chemical personnel.
4-2. Generally, thorough-decon operations are conducted beyond the range of
enemy direct-fire systems. If a contaminated unit requires a thorough decon
as part of reconstitution operations, the decon site is established near the
reconstitution area or the brigade's rear area. Usually, company-sized units
are reconstituted in their brigade’s rear area while battalion-level units are
reconstituted in their division’s rear area. Organizations larger than a
battalion will be reconstituted in the corps's rear area. Further information
about reconstitution can be found in FMs 100-5 and 100-9.
4-3. All echelons prepare for thorough-decon operations as part of the overall
planning process. From the commander’s general guidance, the chemical staff
can begin to develop the decon plan. Coordination with higher HQ is required
to determine the availability of engineer support for site preparation and
closure. Engineers can provide support for sump preparation, drainage
ditches, and sumps. Coordinate with the civil-affairs office for host-nation
Thorough Decon 4-1
FM 3-5/MCWP 3-37.3
support
(personnel, equipment, and supplies) and for environmental
requirements and restrictions.
4-4. The chemical staff selects possible decon sites throughout the unit’s area
of operation (AO) based on such factors as decon type, terrain, mission, threat,
road network, and availability of water. After the decon sites are selected,
linkup points are chosen to support each site. A site may have more than one
linkup point.
4-5. Since decon assets are limited, the commander must establish a priority
of decon support. The priority of support lists the units in the order they will
receive decon support. This can change from phase to phase during an
operation. The chemical staff develops the priority of support based on an
understanding of the commander’s intent.
4-6. To give priority of support to the lead task force during the assault phase
may not be the best choice since any contaminated elements will most likely
not stop for decon until after the assault is completed. The commander should
establish a priority of work that specifies the order in which equipment will be
decontaminated. For example, a priority of work may be in this order:
engineer equipment, artillery pieces, main battle tank, and long-haul vehicles.
A limiting factor is the availability of water. A typical vehicle requires 500
gallons of water during the DED. The actual amount of water required varies
by the vehicle and its contamination level. The supported unit’s chemical staff
must develop a water resupply plan for thorough-decon operations.
4-7. A water resupply plan can be as simple as selecting a series of linkup
points along a route where the chemical unit can link up with a bulk water
truck. More complex water resupply plans include caching water throughout
the AO, coordinating for the movement of water bladders by aircraft, and
identifying water sources in the unit’s AO. The use of nonpotable, salt, and
brackish waters should be considered.
PREPARATION
4-8. Subordinate units review their higher HQ decon plan. If additional decon
sites or assets are required, request them from the higher HQ. The supporting
decon-platoon leader conducts a leader’s recon of the designated decon sites.
Since the decon sites are initially selected by map recon, the actual site may
not be suitable. If the selected site cannot support decon operations, the
chemical unit leader attempts to find another site close to the original site and
notifies the supported unit and his higher HQ of the change.
4-9. The decon-platoon unit leader determines the support requirements that
are needed to operate the decon site. Engineers are required to dig sumps,
improve access to the site, and dig ditches for runoff. Air defense (AD) and
military police (MP) are required to provide security. Medical support is also
required. Depending on the operational situation and the threat, some DED
sites may be prepared in advance. Routes must be established and published
in the OPORD, leading the contaminated unit to the linkup point.
NOTE: Units must be informed not to proceed directly to the decon
site.
Thorough Decon 4-2
FM 3-5/MCWP 3-37.3
EXECUTION
4-10. The actual decon operation begins once a unit requests decon support.
The unit leader must assess his situation and accurately report it to his HQ.
This situation report should include the type and extent of contamination, the
current location, his assessment of the unit's ability to perform the current
mission while contaminated, and the time he expects the unit to become
combat ineffective. The contaminated unit should perform immediate-decon
techniques to increase its survivability and to limit the spread of
contamination. An operational decon should also be considered and
performed, as appropriate. The request for decon support must contain
several essential elements of information to assist the chemical staff and the
decon-platoon leader in coordinating the decon operation. These essential
elements of information are the
• Designation of the contaminated unit.
• Location of the contaminated unit.
• Time the unit became contaminated.
• Earliest possible time the unit can move/begin decon.
• Type of contamination.
• Number and type of vehicles contaminated.
• Special requirements
(patient-decon station, recovery assets, unit
decon team, and so forth).
• Supported unit’s frequency and call sign to facilitate initial linkup.
4-11. The supporting chemical unit is given a warning order (WO) to conduct a
decon operation. Subsequent WOs provide more detailed information. After
requesting decon support, the supported unit issues an OPORD/fragmentary
order (FRAGO) to the chemical unit.
4-12. The supported unit must coordinate the movement of the contaminated
unit to the linkup point. If the contaminated unit is out of the supported unit’s
AO, the move must be coordinated with the higher HQ.
4-13. Once the chemical unit is set up, the decon-platoon leader moves to the
linkup point. Other elements may provide assets to support the decon
operations, such as medical, engineer, AD, and MP. These elements linkup
with the chemical unit before the arrival of the contaminated unit (see Table
4-1, page 4-4).
4-14. The supported unit is responsible for site security and overall control.
The decon-platoon leader is responsible for operating the predecon area and
processing vehicles.
4-15. After linkup is achieved and all support assets are in position, the actual
decon operation begins. The decon-platoon leader, with help from the
commander of the contaminated unit or the supported unit’s command and
control cell, supervises the decon operation. All equipment not necessary for
decon operations should be located in a clear area to limit the spread of
contamination.
Thorough Decon 4-3
FM 3-5/MCWP 3-37.3
Table 4-1. Thorough-Decon Support Matrix
Units
Tasks
Preparation-Phase Tasks
Request
S
P
S
Coordination
S
S
P
Site selection
S OR S
P
Advance-party linkup
S
P
S
Site setup
S
S
P
Execution-Phase Tasks
Site control/security
S
P
Predecon actions
P
S
Processing
P
S
Site-Clearance-Phase Tasks
Cleanup
P
P
Marking and reporting
P
S - supporting responsibility
P - primary responsibility
4-16. A thorough-decon site consists of the following areas: predecon staging
area, DED and DTD areas, and postdecon AA (see Figure 4-1). The chemical
unit leader selects these areas based on operational guidance, road network,
available cover and concealment, and water supply. The contaminated unit
uses the predecon staging area to ready itself. The postdecon AA is the
location where the vehicles and soldiers exiting the DED and DTD areas are
linked up before moving from the decon site.
PREDECON STAGING AREA
4-17. The contaminated unit moves to the predecon staging area about 274 to
547 yards downwind of the thorough-decon site. The contaminated unit per-
forms predecon actions to include segregating vehicles by checking for contami-
nation.
4-18. For chemical contamination, use the CAM and the M8/M9 detector
paper. The contamination level can be estimated by comparing the M8/M9
detector paper to Figure 4-2. When monitoring vehicles for contamination,
there should be about 33 to 49 feet between each vehicle to prevent false posi-
tive readings with the CAM. For radiological contamination, use the AN/PDR-
77 or AN/VDR-2 radiac detector. If the vehicle only has isolated areas of con-
tamination, use the M11 or M13 to decon those areas.
Thorough Decon 4-4
FM 3-5/MCWP 3-37.3
DED
Stations
3
2
4
Predecon
staging
1
5
area
Linkup
Postdecon
point
AA
7
1
2 3
4 5 6
8
Stations
DTD
Figure 4-1. Thorough-Decon Site
Moderate liquid contamination on the M9 detector paper (1 gram/square meter)
Heavy liquid contamination on the M9 detector paper (10 grams/square meter)
Figure 4-2. Contamination Levels
Thorough Decon 4-5
FM 3-5/MCWP 3-37.3
Vehicle Crews
4-19. The vehicle crews, except for the drivers, dismount. As the crews dis-
mount, they remove all contaminated equipment, to include electro-optical
systems from the top and sides of the vehicles. Once the crews have exited the
vehicle, they will not reenter. This prevents contamination from being spread
into the vehicle interior.
Vehicle Preparation
4-20. Using the pioneer tools from the contaminated vehicles, the crews
remove all heavy mud and debris. They concentrate on the vehicle’s undercar-
riage, which is the most likely place for contamination to collect and the hard-
est place to decon. Once the crews are finished with the pioneer tools, they are
placed back on the vehicle. Initial removal of the mud and debris makes it
more likely that the decon wash will remove any remaining contamination.
4-21. Seat covers (when applicable), canvas items, camouflage netting, and
any other materials that can absorb liquid contamination are removed. These
items create a potential transfer hazard and are not easily decontaminated.
Left untreated, absorbed chemical agents will desorb after being decontami-
nated and will create a vapor hazard. Remove items that cannot be decontam-
inated by the standard methods used in the DTD, and place them at the
collection point. Chemical-unit personnel provide advice concerning the decon
or disposal of these items.
4-22. Design vehicle-loading plans to minimize the amount of equipment car-
ried on the outside of the vehicle that cannot be readily decontaminated.
Whenever possible, NBC covers should be used when a chemical attack is
expected (see FM 3-4). All NBC covers are removed and disposed of as contam-
inated waste during the predecon actions.
DED AND DTD AREAS
4-23. In coordination with the chemical unit leader operating the decon site,
the contaminated unit begins sending contaminated vehicles by priority for
processing. Communication is maintained between the predecon staging area
and the chemical unit leaders. All assistant vehicle drivers are the first indi-
viduals sent through the DTD to ensure that there is a driver exchange at sta-
tion 3 (see paragraph 4-94).
POSTDECON AA
4-24. The chemical unit leader selects the general location for the postdecon
AA. It must be big enough to hold the entire unit undergoing the thorough
decon with proper cover and concealment. The postdecon AA is located about
0.62-mile upwind from the DED and DTD areas. The unit assembles in the
postdecon AA after completing DTD and DED operations. The unit occupies
the postdecon AA before moving to a reconstitution location or a tactical AA to
prepare for future operations.
DETAILED TROOP DECON
4-25. The contaminated unit or its higher HQ is responsible for setting up,
operating, manning, and closing the DTD area at the thorough-decon site. The
chemical unit leader determines the general location of the DTD within the
decon site and provides technical advice on setting up, operating, and closing
the DTD area. The supervisor of the DTD must establish a work/rest cycle.
Thorough Decon 4-6
FM 3-5/MCWP 3-37.3
4-26. There are eight stations for a DTD. Spacing between the stations is 10 to
16 feet (see Figure 4-3, page 4-8). Recapitulation of personnel and equipment
for a DTD is provided at Table 4-2, page 4-9.
STATION 1 - INDIVIDUAL-GEAR DECON
4-27. At this station, contamination is removed from individual gear (LCE,
mask carrier, helmet, and weapon) to a negligible risk level (see Chapter 1 of
this manual).
Preparation
4-28. At this station, the following equipment and supplies are needed:
• Four 30-gallon containers for each two decon lanes used.
• 2 long-handled brushes for each two decon lanes used.
• Sufficient STB slurry mix for chemical contamination.
• Hot, soapy water and a sponge for radiological contamination.
• Rinse water.
• 2 ponchos or plastic sheets.
• Engineer tape.
4-29. Dig a sump that is 6 feet long, 6 feet wide, and 4 feet deep (minimum).
Place three 30-gallon containers near the sump for ease of changing. Fill two
containers with an STB slurry mix. Fill the other two containers with clean
water for rinsing and place it about 3 feet forward of the STB cans. Place two
long-handled scrub brushes at each can of STB slurry.
4-30. To prepare the slurry, mix 100 pounds of STB with 20 gallons of hot
water. The chemical unit provides the hot water. Change the mixture after 20
soldiers have decontaminated their gear. The rinse water should be changed
after every 10 soldiers or when it appears dirty (place the waste mixture in
the sump).
4-31. Place a poncho or a plastic sheet on the ground at the checkpoint. Divide
the poncho or the sheet in half using engineer tape. This is the contamination
control line. The checkpoint will be a minimum of 10 feet from all other
stations in order to get a true reading on the detection equipment. Place the
following chemical detection/identification equipment at the checkpoint for an
average company-sized unit:
• 1 CAM.
• 8 books of M8 detector paper.
• 4 M256A1 detector kits.
• 100 plastic trash bags.
• 1 AN/VDR-2 for radiological contamination.
4-32. Three soldiers are required to operate this station. One soldier
supervises the decon of the individual gear and takes the decontaminated
equipment to the checkpoint. He also prepares a new slurry mixture as
necessary. One soldier remains at the checkpoint and checks all the gear
using the detection equipment to ensure that it is decontaminated. One
soldier transports the decontaminated gear to the reissue point.
Thorough Decon 4-7
ntamination
Co
control line
1
Individual-
gear decon
3
4
7
2
Mask
Overgarment
Overboot and
Overboot
decon
removal
glove removal
and
point
Alternate for
hood
radiological
decon
decon
Soapy water
Rinse
Sponge
Towels
5
Monitor
6
Mask
removal
Liquid-
contamination
8
control line
Vapor-
Reissue
contamination
point
control line
Figure 4-3. DTD Layout
FM 3-5/MCWP 3-37.3
Table 4-2. DTD Personnel and Equipment Recapitulation
Stations
Personnel
Equipment/Supplies
Station 1 - individual-gear
2
attendants
4 30-gallon containers
decon
1
monitor (CAM operator)
2 long-handled brushes
2 ponchos or plastic sheets
1 CAM
8 books of M8 detector paper
4 M256A1 detector kits
100 plastic trash bags
Sufficient STB slurry mix
Rinse water
*Hot, soapy water
*AN/VDR-2
*Sponge
Station 2 - overboots and hood
1
attendant
Cutting tool
decon
One SKD or IEDK per person
Large plastic sheet
Plastic trash bags (as required)
10 drums of STB
1 shovel
Station 3 - overgarment
1
attendant
2 30-gallon containers
removal
100 plastic trash bags
10 boxes of SDKs
Station 4 - overboot and glove
3
attendants
8 30-gallon containers
removal
2 long-handled brushes
M8 detector paper (as required)
1 immersion heater
100 plastic trash bags
1 CAM
Engineer tape
1 cutting tool
2 ponchos or large plastic sheets
10 percent STB/HTH solution
Hot, soapy water
Cold rinse water
Station 5 - monitor
1
attendant (CAM operator)
1 CAM
1
aidman (or combat lifesaver)
First aid supplies
5 books of M8 detector papers
1 case of SDKs
Station 6 - mask removal
2
attendants
1 M8A1 or M22 ACAA
Engineer tape
Station 7 - mask decon point
2
attendants
1 30-gallon container
1
monitor
4 3-gallon containers
1 CAM
2 sponges
One case of paper towels
1 immersion heater
Mask sanitizing solution
Hot, soapy water
Rinse water
Station 8 - reissue point
Unit NBC NCO/supply sergeant
Mask PLL
* Denotes the equipment needed for radiological contamination.
NOTE: Assume that an operational decon was done before the thorough decon.
Thorough Decon 4-9
FM 3-5/MCWP 3-37.3
Execution
4-33. The soldier decontaminates his gear by washing and scrubbing it for 6
minutes in a decontaminant container with hot, soapy water or an STB slurry
mix. If he is wearing the M42 mask, he should use hot, soapy water and a
sponge or an STB slurry mix to decon the hose and canister.
4-34. The soldier dips his gear into the clean water and rinses it for 4 minutes
then hands it to the attendant and proceeds to the next station. The attendant
takes the gear to the equipment checkpoint and places the decontaminated
gear on the “dirty” side of the contamination control line and returns to the
containers to pick up more gear. The monitor at the checkpoint checks the
gear using the appropriate detection device and the procedures associated
with that device. If the residual contamination exceeds negligible risks,
recycle the gear and decon it again (see Chapter 1 of this manual). If the gear
passes the check, place it on the clean side of the contamination control line.
The attendant will carry the equipment to the reissue point.
4-35. Depending on the time available, more extensive washing and checking
procedures may be used. The longer the gear is washed or left out in the air
after washing, the lower the contamination level. The gear may be put in
closed areas or plastic bags and checked for hazardous vapors with the
M256A1 detector kit or the CAM. The CAM only detects the G-series nerve-
agent vapors and the H-series blister-agent vapors.
Risk
4-36. If this step is not done properly, contamination may remain on the
equipment. The resulting vapor hazard could cause casualties to unmasked
personnel, particularly in closed areas (vehicle interiors) or heavily wooded
areas where air circulation is poor.
STATION
2
- OVERBOOT AND HOOD DECON
4-37. At this station, gross contamination on overboots, trouser legs, mask,
and hood is neutralized. If ample hoods are available at the reissue point, the
hood should be cut away.
Preparation
4-38. Prepare a shuffle pit by digging a shallow pit about 3 feet long, 3 feet
wide, and 6 inches deep. Fill the shuffle pit with an STB dry mix or an STB
slurry, depending on water availability. Prepare the STB dry mix by mixing
three parts of earth to two parts of STB. Prepare the STB slurry in the same
manner as at station 1 (see paragraph 4-30). Add more STB to the mix after
10 soldiers have processed through the shuffle pit. The chemical unit will
provide 10 drums of STB for every company-sized unit that goes through the
station.
4-39. At this station, the following equipment and supplies are needed for the
mask and the shuffle pit: 1 cutting tool for each decon lane used, 1 SDK or
IEDK per person, plastic trash bags (as required), 10 drums of STB, and 1
shovel (to mix).
4-40. One soldier is required to operate this station. The attendant directs and
“observes” the soldiers as they decon their overboots and hoods.
Thorough Decon 4-10
FM 3-5/MCWP 3-37.3
Execution
4-41. The soldier walks into the shuffle pit and spreads his legs apart (double-
shoulder width), bends at the waist, and uses his hands to thoroughly rub the
STB dry mix or the STB slurry on his overboots and lower trousers legs. He
should take special care to rub the rear of his overboots. He should also
remove any excess decontaminant from his gloves.
4-42. If a replacement hood is available, remove the hood as follows. Buddy #1
cuts the shoulder straps and drawcord on Buddy #2’s hood. Buddy #1 pulls
Buddy #2’s hood inside out over the front of the mask, being careful not to
touch the exposed neck or head. Buddy #1 gathers Buddy #2’s hood in one
hand and using a cutting tool, cuts away the hood as close as possible to the
eye-lens outsert, voicemitter, and inlet-valve covers. Make sure nothing is left
dangling below the bottom of the mask.
4-43. If a replacement hood is not available, Buddy #1 decontaminates and rolls
Buddy #2’s hood in the same manner as for a MOPP-gear exchange. When the
task is completed, Buddy #1 and Buddy #2 reverse roles.
NOTE: Soldiers should check their overboots, rubber gloves, and
overgarment for damage. Any rips, tears, or punctures in these items
should be reported to the monitor at station 5. This allows the
monitor at station
5
to check the soldiers for chemical-agent
symptoms and their clothing for possible contamination.
Risk
4-44. If this step is not done properly, contamination can be transferred to the
combat boots and the head and neck area from the hood.
STATION
3
- OVERGARMENT REMOVAL
4-45. At this station, contaminated overgarments are removed before the
agent penetrates the overgarment material and touches the undergarments or
the skin.
Preparation
4-46. At this station, the following equipment and supplies are needed:
• Two 30-gallon containers for each two decon lanes used.
• 100 plastic trash bags (or about one per soldier).
• 10 boxes of SDKs.
4-47. One soldier is required to operate this station. He directs and "monitors"
the soldiers as they remove their overgarments in the same manner as a
MOPP-gear exchange.
Execution
4-48. The attendant assists the soldier in removing his overgarment. The
attendant cuts and removes the M9 detector paper from around the soldier’s
wrist. He unfastens the Velcro closure over the jacket zipper, waist cord, and
wrist Velcro straps on the soldier’s jacket. He unfastens the back snaps and
instructs the soldier to make a fist. He then pulls the soldier’s jacket down
and away from him.
Thorough Decon 4-11
FM 3-5/MCWP 3-37.3
4-49. The attendant cuts and removes the M9 detector paper from the soldier’s
trousers. He unfastens the Velcro straps and zippers on the cuffs of the
soldier’s trousers. He also unfastens the front waist snaps and unzips the
front zipper. He has the soldier lift one leg and point that foot down and bend
slightly at the knees for stability. The attendant grasps the cuff of the
elevated foot with a hand on each side and pulls the cuff in an alternating,
jerking motion until the soldier can step out of the trouser leg. The process is
repeated on the other leg.
NOTE: The attendant ensures that the soldier steps wide enough so
as not to rub his clean leg against the contaminated boot and
overgarment.
Risk
4-50. If this step is not done properly, the agent may be transferred to the
undergarment or the skin.
STATION 4 - OVERBOOT AND GLOVE REMOVAL
4-51. At this station, contaminated overboots and gloves are removed to limit
the spread of contamination. The overboots and gloves may also be decontam-
inated for reissue (if serviceable).
Preparation
4-52. At this station, the following equipment and supplies are needed for
every two lanes used:
• Engineer tape.
• 1 cutting tool for each lane used.
• 100 plastic trash bags (or about one per soldier).
4-53. If the overboots and gloves are not being decontaminated, two 30-gallon
containers are needed.
4-54. If the overboots and gloves are being decontaminated, the following are
needed:
• Eight 30-gallon containers.
• 2 long-handled brushes.
• 2 ponchos or large plastic sheets.
• 1 CAM.
• 1 AN/VDR-2 for radiological contamination.
• 4 M256A1 detection kits.
• 1 immersion heater.
• 100 plastic trash bags.
• M8 detector paper, as required.
• 10 percent STB/HTH solution.
• Hot, soapy water.
• Cold rinse water.
4-55. If replacement overboots and gloves are available, set up the station as
follows (see Figure 4-4). Establish a liquid-contamination control line and set
Thorough Decon 4-12
FM 3-5/MCWP 3-37.3
Station 3
Overgarment removal
Troop flow
Step 1
Step 2
Step 3
Step 4
Step 5
G
G
G
G
G
G
Station 4
Overboot and glove
removal
O
O
O
O
O
O
Overboot
Hot,
HTH
Rinse
Segregate Check
container
soapy
scrub
water
Legend: O = overboots
Station 5
G = gloves
Monitor
Figure 4-4. Station 4 Layout
two
30-gallon containers
1
foot back from the line. Soldiers support
themselves using the containers and discard their overgarments into the
containers. An attendant directs and monitors the soldiers as they remove
their overboots and gloves in the same manner as a MOPP-gear exchange;
however, the soldiers step over the control line instead of onto a jacket.
4-56. If replacement overboots and gloves are not available, set up the station
as follows: Fill two 30-gallon containers with hot, soapy water and two 30-
gallon containers with a 10 percent STB/HTH solution, placing two scrub
brushes near the containers. Then fill two 30-gallon containers with cold
rinse water. One attendant supervises and assists the soldiers wearing the
M42 mask. The other two attendants decon the overboots and the gloves; one
processes the overboots, while the other processes the gloves.
NOTE: Replace the water in the container once 20 items have been
processed. When available, the decon platoon will assist with the
water requirements.
4-57. For both situations, use engineer tape to mark the liquid-contamination
control line on the ground. Place the cutting tools, two containers, and plastic
Thorough Decon 4-13
FM 3-5/MCWP 3-37.3
bags on the "dirty" side of the liquid-contamination control line. The liquid-
contamination control line separates the "dirty" and "clean" areas. No liquid
agent should be tracked on the ground beyond the liquid-contamination
control line.
Execution
4-58. The liquid-contamination control line separates the “dirty” and “clean”
areas. The attendant unfastens or cuts the elastic closures on the soldier’s
overboots. The soldier faces the liquid-contamination control line and steps
back from it about 12 inches. The attendant steps on the back of the soldier’s
overboot and instructs him to lift his heel and work his foot out of the overboot
and step across the liquid-contamination control line. Repeat the process on
the other foot. If the overboot cannot be removed by this process, the
attendant cuts it off and discards it in the designated container. The soldier
holds the fingertips of his gloves and partially slides his hands out. The
attendant remove the soldier’s gloves.
4-59. If the soldier is wearing the M42 protective mask, the attendant from
station 6 carries the soldier’s filter canister until it is removed.
NOTE: The attendant at station 4 performs his duty from the “dirty”
side of the liquid-contamination control line.
4-60. The overboots and gloves are decontaminated using the following steps:
NOTE: Check all items for holes, tears, and punctures and discard
any item with this defect. Do not decon any item that is
unserviceable.
• Step 1. Submerge the gloves and overboots in their respective container
of hot, soapy water. Some of the contamination is removed during this
step. When the overboots and gloves are removed from the container,
ensure that no water remains inside them.
• Step
2. Submerge the gloves and overboots in their respective
containers of STB/HTH solution. Thoroughly scrub the items until no
visible contamination remains. After scrubbing, submerge each item
once more before moving to the rinse container.
• Step 3. Thoroughly rinse the scrubbed items, making sure that they
are rinsed inside as well as out.
• Step 4. Place usable items on a poncho or a plastic sheet to air dry and
weather.
• Step 5. Place usable items in plastic trash bags along with an M256A1
detector kit. If the detector kit shows contamination remaining, the
attendants can recycle the items or discard them. However, if the kit
show no contamination, the items can be reused.
Risk
4-61. If the overboots are not properly removed, the combat boots may become
contaminated and contamination may be spread to clean areas. If the gloves
are not properly removed, the undergarments and skin may become
contaminated.
Thorough Decon 4-14
FM 3-5/MCWP 3-37.3
STATION 5 - MONITOR
4-62. At this station, contamination on personnel is identified, spot-decon
capabilities are provided, and medical aid is provided, as required.
Preparation
4-63. At this station, the following equipment and supplies are needed:
• First aid supplies.
• 1 CAM.
• 1 AN/VDR-2 for radiological contamination.
• 5 books of M8 detector paper per 100 soldiers.
• 1 case of SDKs.
4-64. An aidman should be present to treat any soldiers suffering from
chemical-agent symptoms. If an aidman is unavailable, a combat lifesaver
should be present.
Execution
4-65. The attendant checks the soldiers for contamination using the CAM.
Liquid agents can be detected with M8 detector paper. Small quantities of
agent vapor can be detected with the CAM. Symptoms of agent poisoning are
the most obvious indication of skin contamination. At this station, the medic
checks each soldier for symptoms of agent poisoning and treats, as required.
Soldiers should report any damage to their MOPP gear that was identified at
stations
2,
3, and
4. The attendant can decon any areas identified as
contaminated with an SDK. Soldiers are remonitored after decon. It is
possible that all liquid-chemical contamination is absorbed into the clothing.
If so, M8/M9 detector paper will indicate negative, even though there is a
hazard.
Risk
4-66. If this station is omitted, the soldier could become a casualty. After this
station, the soldier is not checked for contamination or decontamined again.
Commanders can choose to conduct more extensive contamination checks here
if medical assistance and time are available. This decreases the risk of
casualties.
STATION 6
- MASK REMOVAL
4-67. At this station, the mask is removed without contaminating the soldier.
The mask is taken to a mask decon point, limiting agent transfer at the
station.
Preparation
4-68. At this station, the M8A1 or M22 automatic chemical-agent alarm
(ACAA) and engineer tape are needed. Two soldiers are needed to operate this
station. They remove and carry the masks to station 7.
Execution
4-69. If the hood is still attached to the mask, the attendant pulls the hood
over the front of the mask, grabs the mask by the voicemitter cover, and pulls
the mask off the soldier. The soldier holds his breath as the mask is removed.
If the mask has optical inserts, the attendant holds the mask open so that the
Thorough Decon 4-15
FM 3-5/MCWP 3-37.3
soldier can remove the inserts without touching the outside of the mask. The
soldier walks upwind 16 feet, crosses the vapor-contamination control line,
and then resumes breathing. The attendant brings the mask to station 7.
4-70. If the wind direction remains constant, no chemical vapor hazard is
expected beyond the vapor-contamination control line. Position the M8A1 or
the M22 ACAA upwind of the station to warn of vapor hazards. The soldier
getting decontaminated moves straight ahead while his mask, which may still
give off vapors, is held on the vapor dirty side of the line and taken to station 7
where it is decontaminated.
Risk
4-71. If the step is not done properly, the soldier could breathe toxic vapors.
There is a high probability that the vapor hazard is still present on the mask
and the hood. The soldier must not touch the outside of the mask because it
could contaminate his bare hands. The soldier proceeds to station 8.
STATION 7 - MASK DECON POINT
4-72. At this station, all the contamination is removed from the mask.
NOTE: Once 20 items have been processed in the wash containers,
replace the water. Once 10 item have been processed in the rinse
water, replace it. Place the contaminated waste into the sump.
Preparation
4-73. At this station, the following materials and equipment are needed:
• 4 containers (about a 3-gallon capacity).
• 1 CAM (for chemical only).
• Hot, soapy water.
• Rinse water.
• Mask sanitizing solution.
• Immersion heater.
• One 30-gallon container.
• 2 sponges.
• 1 case of paper towels per company.
4-74. Dig a sump that is 4 feet long, 4 feet wide, and 4 feet deep in which to
discard used filters and canisters. Place the equipment and materials as
shown in Figure 4-3, page 4-8. Three soldiers are needed to operate this
station. Two soldiers strip, wash, rinse, sanitize, and dry masks. The other
soldier checks the masks and carriers them to the reissue point.
Execution
4-75. Remove the eye-lens outserts and the hood if the hood was not cut off at
station 2. Remove and discard the filters or canisters. Put the items into the
properly marked containers. Wash the mask, hood, eye-lens outserts, and the
hoses on the M42 and M43 masks in hot, soapy water. Rinse these items in
clean water, dip them into the sanitizing solution, agitate them for 5 minutes,
and then rinse them again in clean water. Add one tube of mask sanitizing
solution (calcium hypochlorite) to each quart of water. Wipe the masks with
rags until they are almost dry. Discard each container of mask sanitizing
Thorough Decon 4-16
FM 3-5/MCWP 3-37.3
solution into a sump after every 10 masks. The attendant checks the masks for
contamination with a CAM. If the masks are still contaminated, the attendant
recycles them for more decon and then decons his rubber gloves. If the masks
are not contaminated, the attendant takes the masks to the reissue point. The
attendant must take care not to contaminate the reissue point or himself.
Risk
4-76. If this step is not done properly, the soldiers may become contaminated
when the masks are reissued to them at the reissue point. Even though the
step is done correctly, there is still a possible danger when many masks are
stacked together. Small amounts of residual vapor from each mask can
become potentially dangerous.
NOTE: Runners between stations 7 and 8 are in MOPP2 and are
prepared to go into MOPP4.
STATION 8 - REISSUE POINT
4-77. At this station, the mask with its components is provided to the soldier
for reassembly.
Preparation
4-78. At this station, the protective-mask prescribed load-list (PLL) parts are
needed. The unit NBC NCO/supply sergeant sets up the reissue point to
provide the soldiers with replacement parts for all types of protective masks
and assist in mask maintenance.
Execution
4-79. The mask with its components is reissued to the soldier who assembles it
in the AA. The unit chemical NCO affixes canisters to the cleaned M42 and
M43 hoses. The soldier picks up individual gear and moves to the postdecon
AA.
Risk
4-80. If this step is not done properly, the soldier may be inadequately
equipped for future operations.
NOTE: If time is not available, the NBC NCO will have replacement
chemical suits, overboots, and gloves at this station for reissue. If
time is available, personnel will receive this equipment at the
postdecon AA.
RESUPPLY SUPPORT RESPONSIBILITIES
4-81. The supporting chemical unit (decon or smoke/decon) must supply the
majority of the equipment and supplies that are required to operate the DTD.
This does not relieve the supported unit of the requirement to maintain
adequate supplies to conduct DTD procedures.
4-82. A chemical unit’s operational control continues to receive support from
its parent organization. The supported unit provides the chemical unit with
replacements, supplies, and material at the end of the DED. This shortens the
time the chemical unit is nonmission capable following the DED. The
supported unit must coordinate for the supplies and equipment necessary to
operate the DTD.
Thorough Decon 4-17
FM 3-5/MCWP 3-37.3
4-83. Typical nonchemical units do not have more than two CAMs per
company-sized unit. However, the DTD requires a minimum of three CAMs.
The supported HQ may need to provide additional CAMs. The division
support command
(DISCOM) sustains the division’s chemical units. A
chemical unit attached to a maneuver force identifies the resources that are
needed to accomplish the mission and passes these requirements to the
maneuver staff’s Supply Officer (S4)/Logistics Staff at Corps and Division
(G4). The S4/G4 then coordinates with the supporting CSS element to fill the
requirement. The supply units that operate the Class II points issue the
protective masks and overgarments. They normally package protective
clothing as complete sets of MOPP equipment to support a predetermined
number of soldiers. Decon supplies may be issued in preconfigured “push”
packages.
DETAILED EQUIPMENT DECON
4-84. Chemical units (decon and smoke/decon platoons) are responsible for
setting up, operating, and closing the DED portion of the thorough-decon
operation. The DED for chemical and biological contamination is comprised of
five stations. For radiological contamination, the DED uses all but station 2.
Stations are normally 98 to 164 feet apart; however, spacing is METT-TC
dependent.
DECON STATIONS
4-85. The actions that are taken at each of the stations are as follows:
Station
1
- Primary Wash
4-86. At this station, the gross contamination and dirt are removed from the
vehicle. The vehicle is sprayed for 2 to 3 minutes with hot, soapy water. The
vehicle is then scrubbed to help remove caked-on dirt. The mechanical action
of scrubbing also helps remove thickened chemical agents. Although the
undersurfaces are difficult to reach, try to remove as much dirt as possible.
After scrubbing the vehicle, spray it again for 2 to 3 minutes to remove
loosened dirt and contamination. This station uses about 250 gallons of water
per vehicle. Larger vehicles with large quantities of dirt use more water. The
runoff from this station is contaminated and must be treated as hazardous.
The contaminated runoff must be controlled; if available, engineer support
may be used. This station requires high water-pressure systems (M12A1
power-driven decon apparatus
[PDDA] and M17
Lightweight
Decontaminating System [LDS]) rather than low water-volume systems (65-
GPM pumps).
NOTE: Thirty-five cubic feet of space per 250 gallons of liquid runoff
should be used when calculating the size for the drainage pump.
4-87. The effectiveness of the wash depends on the type of wash (hot, soapy
water; hot water; cold water; or steam). The relative effectiveness rankings for
selected surfaces are listed in Table 4-3, page 4-20. Hot, soapy water is water
heated to about 120o to 140o F to which a detergent has been added to reduce
its surface tension. The detergent removes the agent by emulsification, which
is followed by the mechanical displacement of the suspension. Hot water alone
is less effective than hot, soapy water. Because of the high temperature, some
Thorough Decon 4-18
FM 3-5/MCWP 3-37.3
agents are best removed by steam through vaporization. Finally, for some
chemical agents, cold water exhibits better solvent characteristics.
Station 2
- DS2
Application
4-88. At this station, a decontaminant is applied to the entire vehicle. The
vehicle is divided into four parts, and a member of the scrubbing team is
assigned that part of the vehicle. This limits the workload of each member of
the scrubbing team and avoids duplication of work. DS2 is applied starting at
the top of the vehicle and working towards the undercarriage. Every effort is
made to apply DS2 to the undercarriage, especially if the vehicle has crossed a
contaminated area. The mop is the least tiring method of applying DS2. Using
a mop to apply DS2 creates a large amount of spillage. However, continual use
of the M13 decontaminating apparatus, portable (DAP) requires the scrubbing
team to exert more energy than with using the mop. The M13 DAP can be
used to apply DS2
to hard-to-reach areas. Planning factors for DS2
application are provided at Table 4-4, page 4-20.
4-89. Before starting the decon operation, the scrubbing team pours 5-gallon
cans of DS2 into 30-gallon containers if mops are going to be used instead of
M13 DAPs. Each member of the scrubbing team wears a TAP apron or wet-
weather gear to protect himself from the DS2.
4-90. Water adversely affects the DS2's ability to react with chemical agents.
If there is excess water remaining on the vehicle from station 1, the scrubbing
team can
• Wait for the majority of the water to evaporate.
• Remove the excess water.
• Increase the amount of DS2 applied.
4-91. There must be sufficient DS2 on the item being decontaminated for
complete neutralization to occur. The DS2-to-agent ratio needs to be 55 to 1
for H agents and 25 to 1 for G agents. For a vehicle the size of an M1A1 tank,
this corresponds to 15 and 7 gallons, respectively.
Station 3
- Contact Time/Interior Decon
4-92. At this station, the DS2 is allowed to completely neutralize the chemical
agent and the interior of the vehicle is decontaminated. Vehicles are moved to
a concealed position. Vehicles will remain in station 3 for no less than 30
minutes. DS2 reacts with most chemical agents within 5 minutes. However,
by allowing the DS2 to remain on the contaminated surface for 30 minutes,
the amount of agent that will later desorb (off gas) will be significantly
reduced. When there is a 30-minute contact time, there will be no desorption
after decon operations for most chemical agents. However, studies indicate
that distilled-mustard (HD) vapors desorb after decon even if DS2 is allowed
to remain for 30 minutes.
4-93. While the vehicle is held at this station for the DS2 to completely react,
the driver inspects the interior of the vehicle for liquid contamination. He is
given M8 detector paper to check for chemical contamination. If he identifies
chemical contamination, he is given decon supplies to decon the interior of the
vehicle. The best decon solution for use in the interior of vehicles is a 5 percent
solution of HTH or STB. The driver wipes all reasonably accessible
Thorough Decon 4-19
FM 3-5/MCWP 3-37.3
Table 4-3. Effectiveness of Types of Wash
Agents/Surfaces
Relative Effectiveness1
TGD on alkyd-painted metal
Hot water and/or steam; hot, soapy water; cold, soapy water
TGD on CARC-painted metal
Hot, soapy water; hot water and/or steam; cold water
THD on alkyd-painted metal
Hot water and/or steam; hot, soapy water; cold water
THD on CARC-painted metal
Hot, soapy water; hot water and/or steam; cold water
HD on alkyd-painted metal
Hot, soapy water; hot water and or steam; cold water
HD on CARC-painted metal
Hot, soapy water and/or steam; cold water; hot water
VX on alkyd-painted metal
Steam; cold water; hot water and/or hot, soapy water
TGD on canvas/webbing
Steam; hot water and/or hot, soapy water; cold water
GD on canvas/webbing
Steam; hot, soapy water and/or hot water; cold water
THD on canvas/webbing
Steam; hot, soapy water; cold water; hot water
HD on canvas/webbing
Steam; hot water; hot, soapy water; cold water
VX on canvas/webbing
Steam; hot water and/or hot, soapy water; cold water
Overall
Steam; hot water and/or hot, soapy water; cold water
1The types of wash are listed in the order of effectiveness, starting with the most effective to the least effective.
Table 4-4. Planning Factors for DS2 Application
Planning Categories
Tank
Truck
APC
Gallons of DS2
15
8
7
applied
Minutes to apply solu-
35
29
18
tion
surfaces with a rag or sponge soaked in the HTH or STB solution. He should
not attempt to decon areas where there is little likelihood of contamination
(electrical assemblies, area beneath the turret floor, and so forth).
CAUTION
Do not mix HTH or STB with DS2. If mixed, a violent reaction will occur.
4-94. Once the interior decon is completed, the driver places a cover over the
seat and floor of the vehicle. Then he dismounts from the vehicle and proceeds
to the start of the DTD. The assistant driver, having completed the DTD,
mounts the vehicle and moves it to the next station. Drivers must exercise
caution when entering or exiting the vehicle. A DS2-coated surface is slippery,
and the DS2 may react with chemical protective footwear. Personnel should
avoid stepping in DS2 and tracking it into the vehicle.
4-95. For radiological contamination, use an AN/PDR-77 or AN/VDR-2 radiac
detector to determine the extent and location of contamination inside the
vehicle. If there is contamination, determine the intensity of the
Thorough Decon 4-20
FM 3-5/MCWP 3-37.3
contamination inside the vehicle. If the contamination has an intensity
greater than 0.33cGy, the interior of the vehicle must be decontaminated. Use
a sponge to wipe the interior of the vehicle.
Station 4 - Rinse
4-96. At this station, the DS2 is removed from the vehicle. The vehicle is
sprayed with water from top to bottom. Take care to rinse the undercarriage.
This station uses about 200 gallons of water per vehicle. Failure to remove all
DS2 from the vehicle may cause a false-positive reading at station 5. If high
water-pressure systems (M12A1 PDDA and M17 LDS) are not available,
large-volume water pumps (65-GPM pumps) should be used at this station.
The driver removes plastic or other material (if present) covering the seats
and floor and disposes of it as hazardous waste. See Table 4-5 for the
planning factors for the rinse station.
Table 4-5. Planning Factors for the Rinse Station
M1
M2
M113
M109A
5-Ton
Planning Categories
HEMTT
HMMWV
Tank
BFV
APC
PALADIN
Truck
M12A1 PDDA rinse (gallons applied)
325
325
203
325
180
158
90
M12A1 PDDA rinse (minutes applied)
12
12
9
12
8
7
4
57
57
38
57
30
42
23
M17 LDS rinse1 (gallons applied)
14
14
10
14
12
11
6
M17 LDS rinse1 (minutes applied)
1
Rinse is done with a spray wand.
Station 5 - Check
4-97. At this station, the vehicle is checked to see if it has a negligible
contamination level or if it still has significant contamination remaining.
Detection procedures will vary depending on the type of contamination. If
significant contamination is found on the vehicle, the vehicle will be recycled
to station
2
for chemical contamination or station
1
for radiological
contamination. An assistant driver takes the vehicle to the AA.
4-98. Chemical. The CAM is used to check for the presence of vapor from
residual liquid contamination. A one bar or lower reading on the CAM
indicates a negligible contamination level. Once the CAM indicates the
presence of vapor contamination, M8 detector paper is used to verify the
presence of liquid contamination. If it is suspected that both the CAM and M8
detector paper are producing a false positive, use an M256A1 detector kit to
confirm or deny the presence of contamination. See Table 4-6, page 4-22, for a
list of common interferences that can cause false-positive readings on the
CAM. If the vehicle has significant contamination remaining, recycle it. The
commander may modify the recycle criteria based on mission requirements.
4-99. There will be desorption of chemical agents from the surfaces after
decon. The desorption of vapors on surfaces painted with the CARC will stop
sooner then those surfaces painted with alkyd. Consider this when checking
decontaminated items for overall decon effectiveness.
Thorough Decon 4-21
FM 3-5/MCWP 3-37.3
Table 4-6. Common Interferences of the CAM
G-Bar
H-Bar
Interferences
Response
Response
DS2
Low
Insect repellent
Low to very high
Brake fluid
High to very high
Very high
General-purpose
High
cleaner
Burning kerosene
High
Breath mints
High
Gasoline vapors
Low
Low
Burning grass
Low to high
Low
Burning gas
Low
Green smoke
Low
Low to high
Break-free oil
Low
Ammonia
Very high
4-100. Radiological. Use the AN/PDR-77 or AN/VDR-2 to determine if any
contamination remains. If there is contamination remaining, determine the
intensity of the contamination inside and outside of the vehicle. If the
contamination has an intensity greater than
0.33cGy/hr, the vehicle is
recycled to station 1.
RECYCLE CRITERIA
4-101. The commander, with the chemical unit leader’s help, establishes the
recycle criteria before starting decon operations. The recycle criteria
determines which vehicles will return to station 1 after contamination is
detected at station 5. If the unit has sufficient time and resources, any vehicle
having more contamination than the acceptable level should be recycled.
However, time and resources are usually limited, and not all vehicles can be
recycled. The recycle criteria is based on the weathering effects.
RECONSTITUTION CRITERIA
4-102. The operational- and thorough-decon operations that are performed on
vehicles or major equipment will be recorded on DA Form 2404 (Army) or
NAVMC 10245 (Marine). This information will become a permanent record
for these vehicles or major equipment. The entries that are required on these
forms are the type of decon performed, decontaminant used, date/time group
completed, location of decon site, and type of monitoring equipment used to
verify decon completeness. These forms will remain a permanent part of the
unit’s, vehicle’s, and equipment’s records. This information will assist with
reconstitution operations once the conflict or war has ended.
DED LAYOUTS
4-103. Dual-purpose and decon platoons establish thorough decon sites
differently because of organization and equipment differences. The optimum
layout for each type of platoon is described in the following paragraphs (see
Thorough Decon 4-22
FM 3-5/MCWP 3-37.3
Figures 4-5 through 4-8, pages 4-24 through 4-27). This layout provides the
maximum output for platoons at 100 percent personnel and equipment. The
equipment and personnel requirements for the optimum layout are identified
for both the chemical unit (decon platoon) and supported unit (augmenter)
(see Tables 4-7 through 4-10, pages 4-28 through 4-31).
4-104. Since it is likely that all platoons will not be at 100 percent strength,
alternate layouts are discussed. For each alternate layout, chemical-unit
equipment requirements are identified. However, personnel requirements are
not identified by chemical unit and supported unit. The total number of
personnel that are needed is identified, with a minimum number of chemical
unit personnel.
ALTERNATE-LAYOUT PLANNING CONSIDERATIONS
4-105. Chemical unit leaders use METT-TC to determine the best possible
DED layout to execute their mission. When determining alternate DED
layouts, use the following guidelines:
• The ability to spray hot, soapy water or steam under pressure must be
retained at station 1.
• The largest number of people is required at station 2.
• Experienced and qualified CAM operators are required at station 5.
• Water does not have to be hot to rinse off the DS2; however, the lower
the water pressure the more water that is required for the rinse.
DECON PLATOON
4-106. The optimum DED layout for an M12A1 PDDA-equipped platoon
requires the use of all authorized equipment and personnel (see Figure 4-5,
page 4-24). While this DED layout is manpower and equipment intensive, it
provides for the rapid decon of vehicles and equipment
(eight vehicles
processed per hour). This layout uses dual lanes at stations 1, 4, and 5 to
process two vehicles at one time. Since the most time- and labor-intensive
work takes place at station 3, this station is designed to process three vehicles
at a time. The processing rate of this layout will be affected by any work/rest
cycle (see Table 4-11, page 4-32).
SMOKE/DECON PLATOON
4-107. Smoke/decon platoons equipped with the M17 LDS will set up the DED
differently then the decon units equipped with the M12A1 PDDA. While the
optimum DED layout is manpower and equipment intensive, it provides for the
rapid decon of vehicles and equipment (eight vehicles processed per hour). The
layout uses a dual lane at stations 1, 4, and 5 to process two vehicles at a time.
Since the most time- and labor-intensive work takes place at station 3, this
station is designed to process three vehicles at a time. The processing rate of
this layout will be affected by any work/rest cycle (see Table 4-11, page 4-32).
4-108. It may not be possible, for a variety of reasons, for an M17 LDS-
equipped decon platoon to use the optimum DED layout. Figure 4-7, page
4-26, shows an example of an optimum DED layout. Limited personnel or
equipment will affect the DED layout. Figure 4-8, page 4-27, shows an
example of an alternate DED layout.
Thorough Decon 4-23
FM 3-5/MCWP 3-37.3
To linkup point
Predecon
actions
328 to 547 yards
Noncontaminated
vehicle route
65
Station 1 -
SL
65
primary
D
D A
Wash
M12A1
D
PDDA
D
A
M12A1
Individual-
PDDA
gear
A A
A A
decon
1
SL
328 to
547 yards
Overboot
D A D A D A
between
and hood
stations
Station 2 -
decon
2
DS2
application
Return route
Overgarment
removal
A A A A A A
3
100 feet
between
Liquid-
routes
contamination
4
Station 3 -
control line
Overboot
NCO
contact time/
5
and glove
interior
Monitor
removal
decon
Vapor-
6
Mask
TPU
Mask
D
contamination
removal
7
A
A
decon
TPU
control line
point
Water
Station 4 -
D
resupply
rinse
SL
65
8
65
TPU
Reissue
A
D
65
TPU
point
D
M12A1
A D
PDDA
Hot line
Legend
Soldiers:
SL = Squad leader chemical
Station 5 -
platoon
PL
PSG
NCO NCO
check
NCO = Decon NCO chemical
CAM CAM
platoon
PL = Platoon leader
PSG = Platoon sergeant
D = Decon platoon member
Clean personnel
A = Augmenter
TPU = Tank and pump unit
65
= 65-GPM pump
To tactical
= 3,000-gallon tank
AA
= Trash can
Figure 4-5. Optimum DED Layout for the M12A1 PDDA-Equipped Unit
Thorough Decon 4-24
FM 3-5/MCWP 3-37.3
To linkup point
Predecon
actions
328 to 547 yards
Noncontaminated
vehicle route
65
Station 1 -
65
primary
M12A1
wash
PDDA
M12A1
Individual-
PDDA
gear decon
1
SL
328 to
Overboot
547 yards
and hood
between
decon
stations
Station 2 -
2
DS2
application
Overgarment
Return route
removal
3
Liquid-
100 feet
contamination
4
Station 3 -
between
control line
Overboot and
NCO
contact time/
5
routes
glove removal
interior
Monitor
decon
Vapor-
6
Mask
Mask
contamination
7
removal
decon
control line
point
SL
65
8
Station 4 -
Reissue
rinse
point
M12A1
PDDA
Hot line
Legend
Soldiers:
SL = Squad leader chemical
Station 5 -
PL PSG
platoon
NCO
NCO
check
NCO = Decon NCO chemical
CAM
CAM
platoon
PL = Platoon leader
PSG = Platoon sergeant
D = Decon platoon member
Clean personnel
A = Augmenter
65
= 65-GPM pump
= 3,000-gallon tank
To tactical
= Trash can
AA
Figure 4-6. Alternate DED Layout for the M12A1 PDDA-Equipped Unit
Thorough Decon 4-25
FM 3-5/MCWP 3-37.3
To link-up point
Predecon
actions
328 to 547 yards
Noncontaminated
vehicle route
Station 1 -
65
primary
65
wash
M17
M17
Individual-
LDS
LDS
A A
65
A A
gear
decon
1
328 to
547 yards
Overboot
between
D A D A D A
and hood
stations
Station 2 -
decon
2
DS2
application
Return route
Overgarment
removal
A A A A A A
3
100 feet
Liquid-
between
contamination
4
routes
Station 3 -
control line
Overboot
NCO
contact time/
5
and glove
interior
Monitor
removal
decon
TPU
Vapor-
6 Mask
D
7
Mask
A
A
contamination
removal
TPU
decon
control line
point
Water
D
Station 4 -
resupply
rinse
SL
8
65
65
Reissue
point
M17
M17
65
LDS
LDS
Hot line
Legend
Soldiers:
SL = Squad leader chemical
Station 5 -
PL
PSG
NCO
NCO
platoon
check
NCO = Decon NCO chemical
CAM
CAM
platoon
PL = Platoon leader
PSG = Platoon sergeant
D = Decon platoon member
Clean personnel
A = Augmenter
TPU = Tank and pump unit
65
= 65-GPM pump
= 3,000-gallon tank
To tactical
= Trash can
AA
Figure 4-7. Optimum DED Layout for the M17 LDS-Equipped Unit
Thorough Decon 4-26
FM 3-5/MCWP 3-37.3
To linkup point
Predecon
actions
328 to 547
yards
Noncontaminated
vehicle route
65
65
Station 1 -
primary
M17
wash
LDS
Individual-
M12A1
gear decon
PDDA
1
SL
328 to
Overboot
547 yards
and hood
between
decon
stations
Station 2 -
2
DS2
application
Overgarment
Return route
removal
3
Liquid-
contamination
4
100 feet
Station 3 -
control line
5
Overboot and
between
NCO
contact time/
glove removal
routes
interior
Monitor
decon
Vapor-
6
Mask
Mask
TPU
contamination
7
D
control line
removal
decon
TPU
point
D
SL
65
8
65
Station 4 -
Reissue
rinse
point
M12A1
M17
PDDA
LDS
Hot line
Legend
Soldiers:
SL = Squad leader chemical
Station 5 -
PL
PSG
platoon
NCO
NCO
check
NCO = Decon NCO chemical
CAM
CAM
platoon
PL = Platoon leader
PSG = Platoon sergeant
D = Decon platoon member
Clean personnel
A = Augmenter
TPU = Tank and pump unit
65
= 65-GPM pump
= 3,000-gallon tank
To tactical
AA
= Trash can
Figure 4-8. Alternate DED Layout for the M17 LDS-Equipped Unit
Thorough Decon 4-27
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