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Water Testing > 6.15 > Flashcards

6.15 Flashcards

1
Q

What chapter of the NAVMED P-5010 is about field water?

A

Chapter 10

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2
Q

Unit Commander:

A
  1. Ensures sufficient quantities of safe water for drinking, cooking, and bathing.
  2. Enforce water discipline
  3. Inform troops about the dangers of consuming untreated water
  4. Know the proper methods of disinfection of personal drinking water
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3
Q

Engineering Officer

A
  1. Provides sufficient potable water quantities for the population.
  2. Construction, operation, and maintenance of all facilities used for collection, treatment, and distribution of potable water.
  3. Selecting sources of raw water
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4
Q

Medical Department

A
  1. Advises the Commanding Officer on water quality issues.
  2. Assists the engineers with the following:
    a) Selection of water sources.
    b) Surveying the potable water system.
  3. Conduct routine bacteriological examination of the potable water supplies.
  4. Test water for halogen levels.
  5. Inform engineers of water quality and type of treatment required.
  6. Chemical analysis of field water supplies made on a case by case basis assigned by medical and engineering personnel.
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5
Q

All water sources in the field should be considered unsafe until they have been evaluated and approved by who?

A

Medical department.

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6
Q

Influences on water choice:

A
  1. Quality
  2. Quantity
  3. Accessibility
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7
Q

Potential water sources:

A
  1. Public water supply
  2. Surface water
  3. Ground water
  4. Commercial bottled water
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8
Q

Which is the easiest and safest source?

A

Public water supply

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9
Q

What are some examples of surface water?

A

rivers, streams, lakes, ponds, seas, oceans

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10
Q

What are some examples of ground water?

where are they usually located?

A

Existing wells and springs

30 yards from known contamination

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11
Q

Which is usually less contaminated than surface water?

A

Ground water

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12
Q

Commercial bottled water must be tested to be determined as

A

potable water

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13
Q

Typical field water treatment process include:

A
  1. Straining
  2. Chemical addition
  3. Coagulation
  4. Sedimentation
  5. Various kinds of filtration
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14
Q

What does ROWPU stand for?

A

Reverse Osmosis Water Purification Unit

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15
Q

Can be used to produce potable water from:

A
  1. Fresh water
  2. Sea water
  3. Brackish water
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16
Q

Marine Corps Lightweight Medium Tactical (LMT)

A

Produces 3,000 gallons per hour

Only used in treating fresh water

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17
Q

Lightweight water purifier (LWP)

A

125 gallons per hour

more mobile

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18
Q

International Organization for Standardization (ISO)

A

Produces 1500 gallons of water per hour

replacing RO

19
Q

Which is the most common method of disinfection of field water?

A

Chlorination

20
Q

Chlorine is added to the water to achieve the desired free available chlorine (FAC) after how long?

21
Q

Different types of disinfectants

A
  1. Calcium Hypochlorite (HTH) 65% to 70% most common
  2. Sodium Hypochlorite 5% or 10% unscented bleach
  3. Chlorine dioxide
  4. Chlorine gas
  5. Bromine
  6. Chloramines ozone
  7. UV radiation
22
Q

Required chlorine residuals point of production and initial distribution

A

2ppm FAC after 30 minute

23
Q

Required chlorine residuals delivery to secondary storage and unit level storage

24
Q

If between 0.2ppm and 1ppm FAC

A

re-chlorinate to 1ppm and deliver

25
Q

If less than 0.2ppm FAC

A

re-chlorinate to 2ppm and ensure that at least 1ppm FAC remains after 30 minutes.

26
Q

Required chlorine residuals filling canteens, personal hydration system

A

0.2ppm FAC

27
Q

Ground water approved for drinking

A

2ppm FAC after 30 minutes

28
Q

Disinfecting natural surface water

A

5ppm FAC after 30 minute

EMERGENCY ONLY

29
Q

Water purification tablets (Iodine tablets)

A
  1. For disinfecting water in small containers such as canteens
  2. Usually composed of Iodine
  3. Steel-gray
30
Q

Discard if Iodine tablets

A
  1. Color turned yellow or brown.
  2. Stick together or crumble easily.
31
Q

How many iodine tabs for 5 gallon water jugs?

A

40 iodine tablets

32
Q

How many iodine tablets for Personal Hydration System:

70 or 72 ounces?

100 or 102 ounces?

A

4 tabs

6 tabs

33
Q

what are the 11 types of containers used for storing potable water in the field

A
  1. PWS/DS
  2. 3k gallon
  3. LHS “hippo”
  4. FAWPSS
  5. SMFT
  6. TWDS
  7. WDWMS
  8. 400 gallon water trailer
  9. 5 gallon jug
  10. canteen/PHS
  11. 800 gallon “camel”
34
Q

Primary means for the receipt and storage of bulk drinking water and for issue to combat forces under tactical conditions.

A

Potable water storage and distribution systems (PWS/DS)

35
Q

How many gallons does the LHS hold?

A

2,000 gallons

36
Q

Forward Area Water Point Supply System (FAWPSS)

A
  1. Portable, self contained
  2. Gas or diesel operated unit
  3. Employs centrifugal pump to distribute water
37
Q

How many gallons does the Semitrailer-Mounted Fabric Tank (SMFT) hold?

A

3k or 5k gallons

38
Q

Tactical Water Distribution system (TWDS)

A
  1. Highly mobile
  2. Distribute water up to 10 miles
39
Q

Which is the primary means for DEPMEDS hospital under tactical conditions?

A

Water distribution and waste management system (WDWMS)

40
Q

What are the 3 Disinfection procedures for PWT?

A
  1. Method 1
  2. Method 2
  3. Alternative procedure
41
Q

What are the Disinfection Procedures:

A
  1. Drain
  2. Scrub
  3. Rinse
  4. Drain detergent
  5. Rinse repeatedly
  6. Super-chlorinate
42
Q

Disinfecting Method 1

A

10ppm FAC for at least 60 min

43
Q

Disinfecting Method 2

A

5 gallons of water with 100ppm FAC

swab every 10 min for 1 hour

Water Testing (7 decks)

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