1 of 27
Definition Term
The distance that the cone of Zone of Influence
depression affects the normal
static water level.
Give this one a try later!
True False
2 of 27
Term Definition
Continuous Feed Method Fill tank to 5% capacity.
Dose to 50 ppm Cl2.
Hold for 6 hours.
, Fill to overflow and hold for 24
hours.
Residual must be > 2 ppm after
24 hours.
Sample for Bacti
(presence/absence)
Give this one a try later!
True False
Correct definition
Flush pipe at >2.5 FPS (ideally 5 FPS).
Inject solution of at least 25 ppm Cl2 as pipe is being filled.
Ensure 10 ppm residual in all portions at end of 24 hour
period.
Sample for Bacti (presence/absence)
3 of 27
Term Definition
Aquifer A natural underground layer of
porous, water-bearing materials
capable of delivering large
quantities of water.
Give this one a try later!
, True False
4 of 27
Term Definition
Partial Fill Method Storage Tank filled to overflow.
Dosed with 10 ppm Cl2.
Contact time for 6 hours with cl2
gas (24 hours with hypo)
Reduce residual to 2 ppm
Sample for Bacti
(presence/absence)
Give this one a try later!
True False
Correct definition
Fill tank to 5% capacity.
Dose to 50 ppm Cl2.
Hold for 6 hours.
Fill to overflow and hold for 24 hours.
Residual must be > 2 ppm after 24 hours.
Sample for Bacti (presence/absence)
5 of 27
Term Definition
Static Water Level (SWL)
Definition Term
The distance that the cone of Zone of Influence
depression affects the normal
static water level.
Give this one a try later!
True False
2 of 27
Term Definition
Continuous Feed Method Fill tank to 5% capacity.
Dose to 50 ppm Cl2.
Hold for 6 hours.
, Fill to overflow and hold for 24
hours.
Residual must be > 2 ppm after
24 hours.
Sample for Bacti
(presence/absence)
Give this one a try later!
True False
Correct definition
Flush pipe at >2.5 FPS (ideally 5 FPS).
Inject solution of at least 25 ppm Cl2 as pipe is being filled.
Ensure 10 ppm residual in all portions at end of 24 hour
period.
Sample for Bacti (presence/absence)
3 of 27
Term Definition
Aquifer A natural underground layer of
porous, water-bearing materials
capable of delivering large
quantities of water.
Give this one a try later!
, True False
4 of 27
Term Definition
Partial Fill Method Storage Tank filled to overflow.
Dosed with 10 ppm Cl2.
Contact time for 6 hours with cl2
gas (24 hours with hypo)
Reduce residual to 2 ppm
Sample for Bacti
(presence/absence)
Give this one a try later!
True False
Correct definition
Fill tank to 5% capacity.
Dose to 50 ppm Cl2.
Hold for 6 hours.
Fill to overflow and hold for 24 hours.
Residual must be > 2 ppm after 24 hours.
Sample for Bacti (presence/absence)
5 of 27
Term Definition
Static Water Level (SWL)
