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Reader-Requested Crossword Puzzle

Across
Type of water purification system
Used to remove impurities from water.
Used to purify wastewater before release into the environment.
Some of these reach 500 feet underground.
Water source
Pure water
Helps provide water pressure
Down
Using this helps ensure great water quality 365 days a year. ONWASA has its own.
Method of installing pipe underground without disturbing surface.
Scientist who checks water purity
Job title for a person who runs a water plant.
ONWASA is a type of...
It is necessary for large scale development and environmental protection.