Across
- 2. H2O
- 3. A midwest state
- 6. not safe
- 8. Cleaned of contaminants
- 10. An element on the periodic table
- 11. Parts Per Million
Down
- 1. A type of disease one gets from drinking unsafe water
- 4. a polluting or poisonous substance that makes something impure
- 5. A water company
- 7. A body of water
- 9. A manmade structure built on rivers