Advanced Class Chapter 4

A home water supply should provide at least ________ gallons per person per day. (according to the book)

• 10

• 20

• 50

• 100

Components of a well supply include: (Select all that apply)

• Well cap and surface seal

• an Aquifer

• Well pump

• Excavation to the aquifer

Sealing the well is accomplished by: (Select all that apply)

• Pressure grouting (sometimes)

• Well cap

• Surface seal

• Rubber plunger within casing

• Screen at bottom of well

Locate home wells at least ______ ft from septic system drain fields

• 50

• 150

• 100

• 500

Locate home wells at least ______ ft away from fuel tanks.

• 50

• 100

• 150

• 500

Locate home wells at least ______ ft away from animal feed lots.

• 50

• 100

• 150

• 500

Disinfect wells at the following times: (Select all that apply)

• Installation

• Positive bacteriological test

• Issue Suspected

• Maintenance or repairs done on well

• Area around well was flooded

Factors affecting disinfection effectiveness include: (Select all that apply)

• pH

• Temperature

• Level of filtration

• Type and amount of disinfectant

• Contact time

Which of the following is not a disease spread by drinking water?

• Influenza

• Giardia

• Cholera

• Legionella

What is the most important element of a safety program?

• It is fun

• it is hard to break

• it is long

• HAVE ONE