Water Distribution System 7th Edition
Over pumping and depleting the aquifer - answer Intrusion of seawater into groundwater
basins result from?
What is stratification in lakes and reservoirs? - answer Formation of separate layers of
temperature, plant life, or animal life
What causes the elevation and slope of water tables and artesian pressure levels to
change? - answer Seasonal variations in the supply of water
How extensive should the treatment be for reclaimed water? - answer Depends on
potential exposure to the public
The water distribution system must have sufficient capacity to meet 3 qualifying factors
throughout the system. – answer Max water demand plus firefighting requirements and
maintain adequate pressure
What is one difference between primary and secondary drinking water regulations? -
answerPrimary regulations are mandatory limits while secondary regulations are
guidelines
Palatable water - answerWater at a desirable temperature that is free from
objectionable tastes, odors, colors, and turbidity
Contamination - answerOne factor that may cause water quality degradation
Groundwater takes longer to recover after contamination due to? - answerSlow water
movement
Two causes of backflow though a cross-connection? - answerBack pressure and
backsiphonage
Chloramines - answerForm of chlorine most effective against biofilms
Careless operating procedures - answerImproperly constructed or poorly located blow
offs or air release and vacuum relief valves
Integrity of the coating - answerInfluences the potential for corrosion in metal or
asbestos pipe that is lined with asphalt or coal tar
At least twice a month - answerReservoirs should be inspected
Over pumping and depleting the aquifer - answer Intrusion of seawater into groundwater
basins result from?
What is stratification in lakes and reservoirs? - answer Formation of separate layers of
temperature, plant life, or animal life
What causes the elevation and slope of water tables and artesian pressure levels to
change? - answer Seasonal variations in the supply of water
How extensive should the treatment be for reclaimed water? - answer Depends on
potential exposure to the public
The water distribution system must have sufficient capacity to meet 3 qualifying factors
throughout the system. – answer Max water demand plus firefighting requirements and
maintain adequate pressure
What is one difference between primary and secondary drinking water regulations? -
answerPrimary regulations are mandatory limits while secondary regulations are
guidelines
Palatable water - answerWater at a desirable temperature that is free from
objectionable tastes, odors, colors, and turbidity
Contamination - answerOne factor that may cause water quality degradation
Groundwater takes longer to recover after contamination due to? - answerSlow water
movement
Two causes of backflow though a cross-connection? - answerBack pressure and
backsiphonage
Chloramines - answerForm of chlorine most effective against biofilms
Careless operating procedures - answerImproperly constructed or poorly located blow
offs or air release and vacuum relief valves
Integrity of the coating - answerInfluences the potential for corrosion in metal or
asbestos pipe that is lined with asphalt or coal tar
At least twice a month - answerReservoirs should be inspected
