System Components
This is a measure of the smoothness of a pipe's wall
C-Factor
Booster chlorination should take place here
in the distribution system
the volume of a total coliform sample must be
100 ml
Hydrants should only be installed on pipes with a minimum diameter of this.
6 inches
This agency sets legal limits on the concentration of harmful chemicals in drinking water
EPA
Head is measured in this unit
feet
This solution is available with 5 to 20% available chlorine
Sodium hypochlorite
samples to be tested for total coliforms must contain this to neutralize chlorine
Sodium Thiosulfate
thrust from a water surge typically pushes in this direction of an inside surface.
perpendicular
These violations are the most serious
Type III
This type of distribution system surrounds the distribution with large-diameter mains
arterial loop
this must be measured at the same time and place as a total coliform sample
chlorine residual
this is the viewed as the simplest and quickest measure for free chlorine.
DPD method
this type of valve is used to isolate a pump on the suction side
gate valve
These two contaminants have Action Levels rather than MCL's
Lead & Copper
this type of distribution system has interconnected mains
Grid System
this disease causing water-borne organism is known for having the greatest resistance to chlorine
Giardia cycts
Chlorine residual samples should be analyzed by this amount of time
15 minutes
the breaking of a pipe underground when it is unevenly supported is known as this
beam breakage
S.C.A.D.A.
Supervisory Control and Data Acquisition
This is the amount of liquid that can be raised vertically by a given pressure
Pressure head
A process of destroying or inhibiting most pathogens
Disinfection
the number of monthly bacteria sample required are determined by this
population served
2psi
These are required for any excavations greater than 5 feet deep
Trench boxes or shoring