Contingency Water

Question 1

What are the storage water planning factors required during contingencies?

Answer 1

5-day supply of water
60% potable
30 GPPD

Question 2

What are the capabilities of a ROWPU kit?

Answer 2

2 ROWPUs/Kit
Can operate 20 hours/day; 4 hours for backwash and maintenance
1:1 product:reject ratio
1500 gph

Question 3

Explain the 5 day storage requirement

Answer 3

60% of water is potable; 40% is non-potable

Question 4

What are the design considerations?

Answer 4

water source, population, threat conditions, topography, weather, duration

Question 5

Source Run Subsystem (SRS)

Answer 5

Source to treatment: Floor assembly/strainer, Diesel Pump, collapsible fabric tank

Question 6

Water Production System (WPS)

Answer 6

Treatment Plant: Strainer+floor assembly, Diesel Pump, Electric Pump Assembly, 20,000 gallon fabric tanks, ROWPU, 3000 gallon collapsible fabric tank

Question 7

550 Initial Subsystem

Answer 7

Distribution for 550 personnel: Diesel pump, 20,000 gallon tank, dual pumping station, 3000 gallon collapsible fabric tank, bladder water level controllers

Question 8

550 follow on subsystem

Answer 8

Adds distribution for 550 personnel

Question 9

Flightline extension

Answer 9

Extension to flightline from WPS

Question 10

How much of potable water at a base will become wastewater?

Answer 10

70%

Question 11

What is the water treatment and distribution time?

Answer 11

D+10 days to lay water lines, develop water and waste program

Question 12

Personnel:Toilet Ratio?

Answer 12

1 toilet serves 20 people

Question 13

What are the basic siting requirements for wastewater tanks?

Answer 13

100 yards from nearest dining facility; 100 feet from nearest water source; septic tank must be >400’ from leaching field

Question 14

What is the wastewater generated/person before and after BEAR assets?

Answer 14

Initial: 15 GPPPD
BEAR: 21 GPPPD

Question 15

What are the important separation distances? (hint - 4)

Answer 15

1. Facility to macerator pump - 100 feet
2. Macerator pump to dual pump lift station - 500 feet
3. Dual pump lift station to wastewater tank - 100 feet
4. Total distance facility to wastewater tank - 700 feet

Question 16

550-initial subsystem (wastewater)

Answer 16

Sewage ejector systems, macerator pump lift station. dual pump lift station, 25000 gallon wastewater collection tank with mixing systems

Question 17

550-follow subsystem

Answer 17

Sewage ejector system, sewage ejector lift station, macerator pump lift station

Question 18

Evaporation Lagoon

Answer 18

Can’t use in PACAF lmao; net evaporation rate of 46in/year

Question 19

Septic Tanks/Leach Field

Answer 19

solids settle to the bottom, effluent dispersed into drain field; <1000 - 15000 gpd; cleaned every 1-3 years

Question 20

Package Plants

Answer 20

Modular or package form of sewage treatment plants; primary and secondary treatment

Question 21

Conventional Treatment Plant

Answer 21

Most preferred treatment method; highest cost

Question 22

Benefits of reducing water demand

Answer 22

less competition with local community; save money/resources/energy; reduce base vulnerability