Hydro-Puzzle Challenge

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Across
  1. 3. Device to measure water usage (5 letters)
  2. 4. A method used to remove excess nutrients like nitrogen from wastewater (15 letters)
  3. 5. Underground pipes for waste (5 letters)
  4. 10. A key factor considered in water network planning to ensure sufficient supply and pressure (8 letters)
  5. 12. Large storage for water or structure used to hold water (9 letters)
Down
  1. 1. A device used to remove solid particles from water during treatment (7 letters)
  2. 2. this part of the water treatment process involves separating large particles (13 letters)
  3. 6. Liquid essential for life (5 letters)
  4. 7. the type of chemical commonly added to water treatment to kill bacteria (7 letters)
  5. 8. Device to control water flow (5 letters)
  6. 9. A mathematical model used to design water distribution systems (10 letters)
  7. 11. A water holding area (5 letters)