Pmed2 Ground forces Flashcards
NAVMED p-5010-10
Sanitary control and surveillance of field water supplies
What do unit commanders ensure for potable water in the field?
Sufficient quantities of safe water for drinking, cooking and bathing.
Enforces water discipline
Informs troops about dangers of consuming untreated water
Know the proper methods of disinfection of personal drinking water
What does the engineering officer ensure for potable water in the field?
Provides sufficient water quantities for the population
Construction, operation, and maintenance of all facilities used for collection, treatment and distribution of potable water.
Selecting of sources of raw water
What is the medical departments role with potable water in the field?
Advise the CO on water quality issues
Assist engineers with:
Selection of potable water sources
Surveying the potable water system
Conducting routine bacteriological exams of water supplies
Test halogen levels
Inform engineers of water quality and type of treatment required
Chemical analysis of field water supplies made on a case by case basis assigned by med and eng personnel
Until screening is done by medical personnel what is all water in the field considered?
UNSAFE
What three things influence water choice in the field?
Quality
Quantity
Accessibility
What are the types of potential water sources?
Public water supply
Surface water
Ground water
Commercial bottled water
What is the easiest and safest source of water in the field?
Public water supply
What water source is more accessible than others but may have quality problems?
Surface water
What water source do you need to screen and carefully position intakes to avoid areas of likely contamination?
Surface water
What water exists in springs?
Ground water (Wells aswell)
What water is usually less contaminated than surface water?
Ground water
What source of water do you need to locate at least 30 yards upgradient from known contamination?
Ground water
How do we access ground water?
Usually by wells constructed by military engineers or local contractors
What do some typical water treatment processes include?
Straining
Chemical addition
Coagulation
Sedimentation
Various kinds of filtration
What are the treatments for potable water in the field?
- Military ROWPU (reverse osmosis water purification unit) *MOST common
- Marine corps lightweight medium tactical freshwater purification unit
- Lightweight water purification unit
- Tactical water purification system
- Disinfecting of field water (chlorination
- Water purification tablets (iodine tablets)
What water purification unit can produce water from fesh water, brackingsh water and sea water, as well as filter out all waterborne nfectious microorganisms such as parasites, bacteria and viruses?
ROWPU (reverse osmosis)
What water purification unit is the most common?
ROWPU
What water purification unit can produce 3000 gallons of water per hour
Marine corps lightweight medium tactical freshwater purification unit.
What water purification unit can produce 125 gallons of water per hour?
Lightweight water purifier
What water treatment is non-RO and only uses fresh water?
Marine corps lightweight medium tactical freshwater purification unit
What water purification unit is used for small military units and detatchemtns and provides a more mobile, further forwards deployes water purification
Lightweight water purifier (LWP)
What water purification unit can produce 1500 gallons of water per hour?
Tactical water purification system
Which whater purification unit is replacing the RO system?
Tactical water purification system
What is the most common method of disinfection of field water?
Chlorination
For field water disinfection whats the contact time for chlorine to achieve desired FAC?
30 minutes
What is the most common type of chlorination and what for does it come in?
Calcium Hypochlorite (HTH) Most common in granular form
What are the required chlorine residuals for initial distribution and at the secondary storage level? Field water
Initial 2ppm FAC after 30 min contact time
Secondary is 1ppm FAC
If the field water on delivery is between 0.2 and 1.0ppm what must you do?
Rechlorinate to 1ppm and deliver
If the field water on delivery is less than 0.2 ppm FAC what must you do
Re-chlorinate to 2.0ppm and ensure that at least 1ppm FAC remains after 30 min.
Whats the clorination requirements for canteens, personnel hydration systems or other individual use containers?
Whats the level for bottles water?
0.2ppm FAC
Bottle water has no requirements
What is the required FAC forground water approved for drinking water and for how long?
2.0ppm FAC for 30min contact time
What is the requirement for disinfecting natural surface water or well water under the direct influence of surface water for drinking when no other treatment available? When can this be done?
5ppm FAC after 30 min contact time
EMERGENCY ONLY
For water purification tablet (iodine) when must you discard them
Yellow or brown (USUALLY STEEL GREY)
Stick together or crumble easily
How many iodine tablets are required for a:
- 1 quart canteen
- 2 Quart canteen
- Five gallon can (water jug)
- Personal hydration system (70-72 oz and 100-102oz)
- 2 Iodine tablets
- 4 Iodine tablets
- 40 iodine tablets
- 4 tabs for 70-72oz and 6 tabs for 100-102oz
What is the TOTAL contact time for iodine water sanitation in the field?
30 min
What will you do during iodine treatment of field water systems if the water treated is cloudy or discolored after initial treatment?
Double the amount of iodine tablets
What are the types of water storage units in the field?
- Potable waterstorage and distribution system (PWD/DS)
- 3000 gallon tank (ONION)
- Load handling system (LHS) water tnak rack (Hippo)
- Forward area water point supply system (FAWPSS)
- Semitrailer-mounted fabric tank (SMFT)
- Tactical water distribution system (TWDS)
- Water distribution and waste management system (WDWMS)
- 400 Gallon watertrailer
- 5 Gallon water can
- individual water storage equipment
- 800 gallon unit water pod system (CAMEL)
What field water storage unit sits on a m1095 trailer?
800-gallon unit water pod system (camel)
Which field water storage system is used to distribute water to field units?
400 gallon water trailer
What the the primary means for the receipt and storage of bulk drinking water and is for issue to combat forces under tactical conditions
Potable water storage and distribution systems (PWD/DS)
What is the primary means for the receipt and storage of bulk potable water and for wastewater management for the DEPMEDS hospital under tactical conditions
Water distribution and waste management system (WDWMS)
Which field water storage system is highly mobile, easily transportable manually inflatable/collapsible water tank
3000 gallon tank (ONION)
How many gallons does the Load handeling system (LHS) water tank rack (HIPPO) hold?
2000 Gallons
What are collapsable rubber tanks that only transport drinkign water? How much can they carry?
Semitrailer mounted fabric tank (SMFT)
Hold 3000-5000 gallons
Which water storage unit is designed to distribute water up to 10 miles away?
Tactical water distribution system (TWDS)
How many modules does the water distribution and waste management systems (WDWMS) have?
Three modules
-Water distribution set
-Hospital
-Deployable medical system (DEPMEDS)
How many disinfecting procedures of field potable water containers are there?
Method 1
Method 2
and Alternative procedure
What is the last step of disinfecting field potable water containers?
Rinse the container and spigots TWICE with potable water.
What PPM do you use for Method 1, Method 2 and the alternative method for disinfecting storage containers in the field?
Method 1: 100 ppm FAC
Method 2: 100 ppm FAC
Alternative method: 10 ppm FAC
Which field potable water storage disinfecting method do you use if you are in short supply of the required chemical or water
Disinfecting method 2, you use a long handled brush or rod with cloth to keep the interior of the tank wet with your solution for 1 HOUR.
