P5010 Chapter 9 Preventative Medicine for Ground Forces Flashcards
What are the three phases the After Action Report (AAR) should be split into?
1) Predeployment
2) Deployment
3) Post Deployment
Within how many days must the AAR be submitted for personnel deployed less than 6 months?
Within 15 days
Within how many days must the AAR be submitted for personnel deployed more than 6 months?
Within 30 days
Who is ultimately responsible to ensure there are sufficient quantities of safe drinking water for their personnel?
Unit Commanders
Who is responsible for providing sufficient potable water for the population to be served?
Engineers
What are the different potential water sources?
Existing public water systems Surface water Ground water Salt water Other (rain/snow/ice)
What water source is usually the easiest and, in most cases the safest source?
Existing public water systems (usually has been treated to some extent)
What water source includes lakes, rivers, streams, and ponds?
Surface water
What water source includes wells and springs?
Ground water
When treating water, what are some ways to remove suspended solids?
Aeration
Coagulation
Flocculation
Filtration
What are two pieces of equipment currently used to purify water?
ROWPU
ERDLATOR
What is the most common field purification system in use?
ROWPU
What it preferred agent for water chlorination?
Calcium hypochlorite 65-70% (HTH)
Why is Calcium hypochlorite (HTH) the preferred agent for chlorination?
Comes in granular form
Long shelf life
Readily available
What is the liquid solution commonly used to disinfect water if HTH is not available?
Sodium hypochlorite (5% or 10%) – household bleach
When disinfecting water, how long after adding chlorine should you measure the FAC?
30 minutes after adding
What should the FAC level be for water from a public water system of questionable quality?
5.0 ppm FAC after 30 minutes – maintain 2.0 ppm
What should the FAC levels be at engineering water points?
5.0 ppm FAC at the sandpipe or fill hose
What should the FAC levels be for a water tanker, trailer, bladder or cans?
Between 5.0 – 2.0 ppm FAC when filled at an approved engineering water point.
What should the FAC levels be for a water tanker, trailer or bladder when being used as a “source” for distribution?
5.0 ppm FAC
What should the FAC levels be when filling a lyster bag or canteen from an approved water source?
2.0 ppm FAC
What should the FAC levels be when filling a lyster bag or canteen from an unapproved or raw water source?
Initially 5.0 ppm and maintain 2.0 ppm
When superchlorinating to disinfect a water container, what FAC levels must be reached and maintained?
100 ppm FAC must be reached and it cannot drop below 50 ppm for 4 hours.
When supercholorinating a water container, how must the container be marked?
“Poison do not drink” must be displayed clearly on all sides of the container or at all water outlets
