Water Industry

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Across
  1. 2. what do you flush
  2. 5. the biological decomposition of organic matter sludge by anaerobic or aerobic microorganisms in the waste water
  3. 6. water cleaned at treatment plants that is used for irrigation
  4. 7. oily or fatty matter
  5. 9. us government agency that enforces laws dealing with the health of water
Down
  1. 1. often added to drinking water
  2. 3. water pure enough to drink
  3. 4. a separate sewer that carries rain and melded snow from street run off
  4. 8. what do you wash your hands in