water cross puzzle

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Across
  1. 2. A government agency that regulates water
  2. 3. A natural flowing body of water
  3. 5. Determines the Acidity/Basicity
  4. 6. When something has a lot of holes
  5. 9. Water can seep through stuff with this adjective
  6. 12. The process of removing something from something else
  7. 14. When something can hold more water
  8. 16. The introduction of harmful materials into the enviroment
Down
  1. 1. To control the amount of pollution in an enviroment
  2. 4. The opposite of permeable
  3. 7. How much matter in is something
  4. 8. To collect data
  5. 10. Tiny plastic
  6. 11. When something holds as much water as it can
  7. 13. A large system of circulating water
  8. 15. The average weather conditions for a particular region