The document summarizes where local tap water comes from and how it is treated. Tap water comes from the Hemlock Reservoir in Fairfield, CT, is treated at a plant in Fairfield, and travels through underground pipes to homes. The treatment process involves adding chemicals to remove impurities, filtering the water, adding chlorine to kill organisms, and adjusting the pH and adding phosphates and fluoride before storing the treated water. Homes may get water from wells or municipal water treatment plants.

1. Local Drinking Water Treatment

2. Where Does Your Tap Water Come From? Your drinking water is processed by a company called Aquarion.

3. They have several treatment plants. Your tap water is treated in Fairfield, CT and travels down a 36” pipe underground along the Post Road.

4. The water source is a local reservoir called Hemlock Reservoir in Fairfield.

5. Easton Reservoir Water Treatment Plant

6. Water Reservoirs in Our Area This reservoir connects with the next body of water.

7. Water Reservoirs in Our Area Your Water Comes from Here k Raw water is treated here to become safe tap water k

8. How your water is treated: The Gate House controls the amount of water that enters the treatment plant.

9. The Raw Water Pumping Station helps water up hill. The pumps are not used when gravity can do the work.

10. At the Settling Tank a chemical, Alum is added to make impurities clump together. This is called COAGULATION.

12. Coagulation and Flocculation

13. Sedimentation Basin

14. After the impurities settle, clarified water overflows the Sedimentation Tank leaving the clumps of impurities behind.

15. Next the water is Filtered by letting gravity pull the water through ground up coal and sand.

16. In a new tank Chlorine is added to kill all organisms.

17. Final Additives Before Going to the Storage Tank Adjust PH from 6 to 7 to protect pipes from corrosion.

18. Phosphates are added to prevent dissolving lead & copper pipes.

19. Fluoride is added for dental health.

20. The Storage Tank is filled at night to be ready for peak demand in the morning when you get up to flush, shower, cook, drink, brush teeth and wash dishes.

21. Water Tests Performed Daily: Turbidity – how clear the water is