Across
- 1. protects the water intake
- 4. the pumping station in Chicago
- 7. treated wastewater ends up in the Gulf of _____
- 8. the number of water pumping stations in the Chicago area
- 10. wastewater treatment plant
- 12. chemical added to water to stick to microscopic solids
- 13. water purification plant
- 14. the number of wastewater treatment facilities in the Chicago area
Down
- 1. chemical added to water to kill bacteria
- 2. chemical added to water to prevent cavities
- 3. a place where solid wastes are re-used
- 5. the name for treated wastewater
- 6. a sticky buildup of inorganic solids
- 9. this was dumped in the Chicago River prior to the 1890s
- 11. the direction of flow of the Chicago River was changed to go in this direction