REVIEW Flashcards
what does the water sanitation bill cover?
anything to do with potable water, ANYTHING.
what is distilation?
total process the distilling plant forms, including evaporation and condensation
what is Free available chlorine?
chlorine available (after the demand is met)
what is water that is suitable for human consumption?
Potable water
what is total coliforms?
Mostly harmless bacteria found mostly in animal and human guts.
- good indicator of the overall quality of the water
E. Coli is?
a type of fecal coliform commonly found in intestines.
- presence is a strong indicator that the water has recently been contaminated with sewage
what is NAVSEA responsible for when it comes to potable water?
- design
- construction
- Maintenance
what is NAVFAC responsible for with potable water?
Promulgating instructions for ship-to-shore connections
who is responsible for promulgating the ships water sanitation bill?
Commanding Officer
for potable water what is the engineering department responsible for?
- supply and treatment of potable water
- ensure all ship to shore connections are made by trained personnel
- halogen and PH testing
for potable water what is the MDRs responsibility?
- BACTI testing
- daily halogen residuals
- notifying the CO of any discrepancies observed
per NAVSEA what is the daily water use per person?
50 gallons per day
under water restriction how much water does each person rate?
no less than 2 gallons per day
what method does the ship use to make their own water?
Distillation, Reverse osmosis
when receiving water from an unapproved source what is the minimum FAC/TBR?
2.0 ppm
what are the types of distillation plants?
- Steam distilling
- waste heat distilling
- vapor compression
what are the two types of reverse osmosis?
- single pass
- triple pass
what type of reverse osmosis requires additional disinfection?
Single pass
what certification must the interior lining of a potable water tank have?
NSF/ANSI Standard
what is the purpose of overflow lines?
What specifics are they constructed under?
- to prevent accidental contamination
- screened with 18 gauge mesh or finer and be noncorrosive
what must sounding tubes be labeled as?
“POTABLE WATER ONLY”
how are sounding tubes disinfected?
100 ppm for 2 minutes
how high must filling connections be off the deck?
18 inches
what color are potable water filling connections?
Dark blue