Water crossword

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Across
  1. 2. Continuous observation or tracking of a process or system (10)
  2. 5. A measure of water’s chemical, physical and biological condition (7)
  3. 6. The natural world affected by human activity (11)
  4. 9. Chemical added to drinking water and swimming pools to disinfect (8)
  5. 10. A system for carrying away excess water (8)
  6. 15. Mineral added to water to help prevent tooth decay (8)
  7. 16. Make free from harmful germs (9)
  8. 18. One of the largest dams in NSW and Sydney's main source of water (10)
  9. 19. Aquatic organisms that can bloom in excess nutrients (5)
  10. 20. Water that has been purified and reused (9)
  11. 22. Facility where water or wastewater is purified (9, 5)
  12. 23. Exclusive control of a market or service (8)
  13. 25. Natural or artificial place where water is stored (9)
Down
  1. 1. Rivalry among businesses in the same industry (11)
  2. 3. Barrier built to contain the flow of water or store it for later use (3)
  3. 4. Company managing Sydney’s water supply (6,5)
  4. 7. Natural stream of water flowing toward a sea, lake, or another body of water (5)
  5. 8. Water stored below the surface in soil and rock (11)
  6. 11. Type of light used in water purification to kill bacteria (12)
  7. 12. Precipitation from clouds (4)
  8. 13. The process of removing salt from seawater to make it drinkable (12)
  9. 14. Tubes through which water is transported (5)
  10. 17. The movement of water in a stream or system (4)
  11. 20. Consistent, dependable and unlikely to fail (8)
  12. 21. People who use goods and services (9)
  13. 24. The force exerted by water in pipes, measured in PSI (8)