6.15 Potable Water Supply Requirements for Ground Forces Flashcards
Responsibilities of Unit Commander
Ensures sufficient quantities of safe water for drinking
enforce water discipline
inform troops of dangers of consuming untreated water
proper methods of disinfection
Responsibilities of Engineering Officer
provides potable water quantities for the population
construction, operation adn maintenance of facilities
selecting sources of raw water
Responsibilities of Medical Department
advises the commanding officer
assists in selection of water sources and surveying potable water system
conduct routine bacti
test water for halogen
inform engineers on type of treatment required
chemical analysis of field water supplies
influences on water choice
quality
quantity
accessibility
Public water supply
easiest and safest sources
water has been treated to some extent
unsafe until approved
evaluate and treat to make water safe
Surface Water
more accessible than other sources quality may be a problem more contaminated adequate quantities RIVERS, STREAMS, LAKES, PONDS, SEAS AND OCEANS
Ground water
existing wells and springs
less contaminated
difficult to determine quantities
located at least 30 yds upgradient
field water treatment process
straining chemical addition coagulation sedimentation filtration
Military ROWPU
Reverse Osmosis Water Purification Unit *Most Common can come from - fresh water - brackish water - sea water
Marine Corps Lightweight Medium Tactical freshwater purification unit
Non reversible osmosis
produces 3,000 gallons per hour
only used in treating fresh water
Lightweight Water Purifier (LWP)
used for small military units, specs ops forces
125 gallons per hour
more mobile
Tactical water purification system
International Organization for Standardization
1500 gallons per hour
chlorination
most common method
sufficient chlorine is added to water to achieve FAC after 30 min contact time
Different types of disinfectants
calcium hypochlorite (HTH) 65-70% sodium hypochlorite 5-10% chlorine dioxide chlorine gas bromine chloramines ozone UV radiation
Describe the disinfection of natural surface water/well water when connected to surface water for drinking
5ppm FAC after 30 mins
EMERGENCY ONLY
How many tablets of iodine per quart of water
two iodine tablets
Potable water storage and distribution system
primary means for the receipt and storage of bulk drinking water
3,000 gallon tank
highly mobile, easily transportable manually inflatable/collapsible
Load handling system (LHS) water tank rack (hippo)
2,000 gallon tank
Forward Area Water Point Supply System
Portable, self contained
employs centrifugal pump to distribute water
Semitrailer-mounted Fabric Tank
3,000-5,000 gallons
collapsible rubberized tanks
Tactical Water Distribution System (TWDS)
Highly mobile
designed to distribute water for distance up to 10 miles on level terrain
Water distribution and waste management system (WDWMS)
Water distribution set
hospital
Deployable Medical System (DEPMEDS)
Primary means for receipt and storage of bulk potable water
400 gallon water trailer
used to distribute drinking water to field units
5 gallon water
unit water storage
Individual water storage equipment
1-2 quarts canteen
personal hydration system
45-100oz capacity
800 gallon unit water pod system (camel)
under development
disinfecting method 1
chlorinate to 100ppm FAC
run some solution through valves and spigots
keep all interior surfaces wet for 60mins
drain water
rinse the container and spigots twice
Disinfecting Method 2
prepare 5 gal water with 100ppm chlorine
long handled brush, stick or rod w/ cloth, swab interior of tank every 10 mins, keeping tank wet for 60 mins
