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Water Source
Filtration
Sedimentation
Coagulation
Disinfection
100
A layer or zone below the surface of the earth which is capable of yielding a significant volume of water.
What is an aguifer?
100
Parameters are used to determine a filter backwash time.
What is headloss, turbidity and time?
100
The four zones in a sedimentation basin.
What are Inlet, outlet, settling, sludge?
100
The water in the treatment unit looks milky with a bluish tint.
What is Alum overdose?
100
The chemical is used to detect a chlorine leak.
What is ammonia?
200

These are rights that are acquired with the title to land that borders a water source.

What is Riparian Rights?

200

The filter backwash procedure.

What is reversing the flow of water through the filter media to remove the entrapped solids?

200

Caused by short-circuiting. 

What is flock carry over?

200
Small, well dispersed floc in the floc basin.
What is good coagulation and floculation?
200

The capacity new chlorine cylinders are filled.

What is 85%?

300

Nutrient rich body of water, particularly high in phosphorus & nitrogen

What is eutrophic?

300

Operating the filter under a negative pressure.

What is the cause of air binding?

300

The detention time in a conventional sedimentation tank.

What is 2-6 hours?

300
The capacity of water to neutralize acids.
What is alkalinity?
300

What is the PEL for Chlorine gas?

What is 1 ppm?

400
The chemical is used to control algal blooms.
What is bluestone?
400
Causes mudball formation in a filter.
What is improper backwash?
400

A measure of electrical charge of the surface of colloidal participles

What is Zeta potential?

400
The maximum holding time for turbidity samples
What is 48 hours?
400

A free chlorine residual reacting with organics in the water.

What is the formation of DBP?

500

Salt water intuition.  

What is the result from over pumping from an aquifer?

500

The average filtration rate for a rapid sand filter.

What is 4 - 10  gpm/sq ft?

500

Lower temperatures cause this condition in solids-contact tank.

What is slow settling?

500

Type of coagulant is generally used as a filter aid

What is Nonionic Polymer?

500

The maximum chlorine to ammonia-nitrogen ratio by weight.

What is 5 to 1?