Potable Water Supply Requirements for Ground Forces Flashcards
responsibilities of the CO with potable water in the field
ensures sufficient water quantities
enforce water discipline
inform troops dangers of untreated water
know the proper methods of disinfection
engineering officer responsibilities in regards to potable water in the field
provide sufficient potable water
construction, operation, and maintenance of the facilities used for collection, treatment, and distribution
selecting raw water sources
MDR responsibilities in regards to field potable water
advice CO
assist engineers
conduct bacteriological testing
test halogen
inform engineers
chemical analysis
general rule of thumb when picking acceptable water supply sources
all water sources in the field should be considered unsafe until they have been evaluated and approved by the medical department
what are the three influences on water choice in the field
quality
quantity
accessibility
potential water sources
public water supply
surface water
ground water
commercial bottled water
examples of surface water
rivers, streams, lakes, ponds, seas, and oceans
how far should ground water be from know contamination
30 yrds upgradient
types of field water treatment units
Military ROWPU
Marine Corp LMT
Lightweight water purifier (LWP)
Tactical Water purification system
ROWPU (Reverse Osmosis Water Purification Unit)
most common
fresh, brackish, sea water
Marine Corp Lightweight Medium Tactical (LMT) freshwater purification unit
non reverse osmosis
produces 3,000 gallons per hour
only fresh water
lightweight water purifier (LWP)
used for smaller units, SO units, and temp medical facilities
125 gallons per hour
Tactical Water Purification System
an International Organization for Standardization (ISO) compatible flat rack and transportable by the load handling system
1500 gallons of water per hour
replacing the ROWPU
required chlorine residuals
point of production-2ppm FAC/30min
delivery to unit level storage (buffalos/5 gal containers)- 1ppm FAC
for canteens- .2 ppm FAC
Required Chlorine residual for natural surface water in emergency
5 ppm after 30 min contact time
secondary storage/unit level procedures for low chlorine residuals
between .2 and 1 ppm FAC: re chlorinate to 1ppm
types of containers for storing potable water in the field
PWS/DS 3,000 Gallon Onion Tank LHS FAWPSS SMFT TWDS WDWMS
Portable Water Storage and Distribution System (PWS/DS)
primary means for receipt of bulk drinking water
capacity is dependent on number and size of fabric tanks assigned
3,000 Gallon Onion Tank
highly mobile, manually inflatable fabric water tank
Load Handling System (LHS) water tank rack (hippo)
2,000 gallons
recirculation water pump
Forward Area Water Point Supply System (FAWPSS)
gas or diesel operated unit
centrifugal pump to distribute water
Semitrailer-Mounted Fabric Tank (SMFT)
only drinking water
rubberized tanks
3,000-5,000 tanks
Tactical Water Distribution System (TWDS)
highly mobile
distributes water up to 10 miles on level terrain
Water Distribution and Waste Management System (WDWMS)
3 modes
water, hospital, deployable medical system (DEPMEDS)
disinfecting method one field operations
chlorinate the water in container to 100 ppm FAC
keep wet for 60 min
rinse the container and spigot twice with potable water
disinfecting method two field operations
(if water or chemical are in short supply)
5 gallons of water with 100ppm chlorine
swab interior with solution every 10 min for 60 min.
rinse the container and spigots twice with potable water
what is the alternative procedure for field ops water container disinfection
chlorinate to 10ppm FAC
hold for 24 hrs.
rinse the container and spigots twice with potable water
