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Intrusion of seawater into groundwater basins result from? Correct
Answers Over pumping and depleting the aquifer
Formation of separate layers of temperature, plant life, or animal life
Correct Answers What is stratification in lakes and reservoirs?
Seasonal variations in the supply of water Correct Answers What causes
the elevation and slope of water tables and artesian pressure levels to
change?
Depends on potential exposure to the public Correct Answers How
extensive should the treatment be for reclaimed water?
Max water demand plus firefighting requirements and maintain adequate
pressure Correct Answers The water distribution system must have
sufficient capacity to meet 3 qualifying factors throughout the system.
Primary regulations are mandatory limits while secondary regulations
are guidelines Correct Answers What is one difference between primary
and secondary drinking water regulations?
Water at a desirable temperature that is free from objectionable tastes,
odors, colors, and turbidity Correct Answers Palatable water
, One factor that may cause water quality degradation Correct Answers
Contamination
Slow water movement Correct Answers Groundwater takes longer to
recover after contamination due to?
Back pressure and backsiphonage Correct Answers Two causes of
backflow though a cross-connection?
Form of chlorine most effective against biofilms Correct Answers
Chloramines
Improperly constructed or poorly located blow offs or air release and
vacuum relief valves Correct Answers Careless operating procedures
Influences the potential for corrosion in metal or asbestos pipe that is
lined with asphalt or coal tar Correct Answers Integrity of the coating
Reservoirs should be inspected Correct Answers At least twice a month
Subject to contamination from many sources Correct Answers Why are
uncovered reservoirs often prohibited?
Ensuring adequate turnover of water in the tank Correct Answers What
is an important aspect of a tank inspection and maintenance program?