Water Quality

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Across
  1. 3. organisms that set the standard for water quality
  2. 7. the presence of old tires and litter are examples of this type of water quality indicator
  3. 9. overgrowth of algae in a body of water
  4. 10. the presence of micro and macro are indicators of this type of water quality
  5. 12. the process that takes place when excessive nutrient enter the water system causing algal blooms to form, causing the water body to become a meadow
  6. 13. as temperatures increase, the DO levels ...
  7. 15. chemicals found in fertilizers and waste
  8. 17. pollution that enters the water system from runoff and domestic sewage
  9. 18. 7 on the pH scale
Down
  1. 1. the organization that sets standards for water quality
  2. 2. cloudiness of water
  3. 4. high turbidity will cause .... to increase
  4. 5. the measure of how acidic or basic a substance is
  5. 6. 7-14 on the pH scale
  6. 7. pollution that enters the water system directly and the source is known
  7. 8. what is used in a water treatment plant to kill any remaining bacteria prior to sending clean water to homes
  8. 9. 0-6.9 on the pH scale
  9. 11. nitrate levels, dissolved oxygen and pH are all examples of this type of water quality indicator
  10. 14. organisms that live on the bottom of a body of water
  11. 16. water without oxygen
  12. 19. what is used in a water reclamation center to sterilize bacteria prior to putting clean water back into the environment