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
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 chemical 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
Teir I
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
Cryptosporidium
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
5 ft/sec is the minimum for...
Flushing Velocity
A process of destroying or inhibiting most pathogens
Disinfection
the number of monthly bacteria sample required are determined by this
population served
2psi
This are required for any excavations greater than 5 feet deep
Trench boxes or shoring