Water Qualtiy Crossword

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Across
  1. 3. Fathead minnow
  2. 5. High levels of this in hydraulic fracturing wastewater
  3. 8. Salt component naturally occurring in water
  4. 9. Living factor to assess water quality
  5. 10. Annual permit-required proficiency testing
  6. 12. Algal bloom may eventually lead to this
Down
  1. 1. Industrial pretreatment monitors plating shops and photographic processing businesses for this
  2. 2. Biological nitrification converts this to nitrate
  3. 3. Pink titration indicator
  4. 4. Not a grab sample but a
  5. 6. How low you can go
  6. 7. Proportional to conductivity
  7. 11. Method 1631 is low-level
  8. 13. 200.8 preservation