6.15 Flashcards
Unit commander responsibilities with Potable water
Ensure there sufficient amount of safe drinking, cooking and bathing water
Enforcement of water discipline
Engineering officers responsibility for potable water
provide sufficient potable water quantity for population
Selecting raw water source
Medical Departments responsibility with potable water
Advise the CO
test Bact and Halogen
Assist the engineering officer with water selection
all water in the field is considered what until proven otherwise?
unsafe
What influences the choice of water?
Quality
Quantity
Accessibility
Potential water sources are?
Public water supply
Surface water
Ground water
Commercial bottled water
example of surface water
river, streams, lakes
more contaminated than other sources
Examples of ground water
difficult to determine quantities
located 30yd upgradient from known contaiminenets
Describe typical field water treatment process
Straining Chemical addition Coagulation Sedimentation Various kinds of filtration
Desribe the ROWPU?
most common
can make potable water from (fresh, brackish and sea water)
Multiprocess system that will remove all waterborne infectious microorganisms
Describe the Marine Corps Lightweight Medium Tactical Freshwater purification unit (LMT)
NON reverse osmosis
Produces 3,000gal per hour
only used with fresh water
Describe the Lightweight water purifier (LWP)
125 ga per hour
purify water for small units, spec ops and temporary medical facility
Describe the Tactical water purification system?
1500 gal and hour
replacing ROWPU
International organization for Standarization compatible with flat rack and load handling pallet system
Chlorination is what?
Most common way to disinfect water
Sufficient Chlorine added to achieve the FAC after 30mins
Different types of disinfectants
Calcium Hypochlorite (HTH) 65-70% most common granular
Bromine
UV
Required Chlorine residual
Point of production after 30min is 2.0ppm
Delivery to secondary storage 1ppm
if between 0.2 and 1ppm rechlorinate to 1ppm then deliver
filing canteens and personal hydration 0.2ppm
if less then 0.2ppm rechlorinate to 2.0 than deliver
Ground water is ok to drink after what
2.0ppm after 30min
Ho do you disinfect well water or natural source that under the direct influence of surface water?
5pp after 30min
When to discard iodine tabs?
yellow or brown
stick together or crumble
Describe the portable water storage and distribution system
Primary means for the receipt and storage of bulk drinking water and issue to combat forces
total capacity is based on size and quality of tanks used
Describe the 3,000 gal tank
onion tank
highly mobile, easily transportable manually inflated and collapsible fabric tank
Desribe the Forward are water point supply system (FAWPSS)
Portable and self-contained
Gas or diesel operated
Employs the centrifugal pump to distribute water
Describe the semi trailer mounted fabric tank
transport only drinking water
collapsible rubber tank
3,000-5,000 ga tank
Describe the water distribution and waste management system (WDWMS)
The modules (Water distribution, hospital, Deployable medical system) Primary means for water to a hospital in a tactical condition
