Facts About The New York City Water Supply System Questions from the Reading Where does most of New York City drinking water come from? The Croton, Catskill and Delaware reservoir systems

2. What four things are added to New York City drinking water? A. Chlorine B. Fluorine C. Orthophosphate D. Sodium Hydroxide 3. List 3 conservation measures being used to help reduce the amount of water being used in New York City. A. Installing low flow plumbing fixtures B. Replacing fire hydrants that are tamper-proof C. Provide free water use audits

To raise the pH and reduce corrosivity of the water 4. When was the Old Croton Reservoir put into service? In 1842 5. Why is sodium hydroxide added to New York City drinking water? To raise the pH and reduce corrosivity of the water 6. How many acres of land has New York City opened to the public for recreational purposes? 37,000 acres

Pepacton 140.2 billion gallons Questions from the Map and Table 7. Which reservoir holds the most water (highest capacity)? Pepacton 140.2 billion gallons 8. What is the name of the biggest reservoir in Westchester? The Kensico Reservoir 9. What aqueduct connects the Ashokan Reservoir to the Kensico Reservoir? The Catskill Aqueduct