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New York City Water System

New York City Water System. By: Tim Sweany May 2013. New York City Water System. S History 1609-2013 S Watersheds S Tunnels S Environmental battle S Facilities today. Collect Pond – NYC F irst W ater S upply. coll. 1609. 2009. New York City Water System.

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New York City Water System

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  1. New York City Water System By: Tim Sweany May 2013

  2. New York City Water System SHistory 1609-2013 SWatersheds STunnels SEnvironmental battle SFacilities today

  3. Collect Pond – NYC First Water Supply coll 1609 2009

  4. New York City Water System 1609 – Ponds, Rivers, Streams 1666 – First Public Well 1700’s – Contamination by Waste human/animal/industrial 1798 – Yellow Fever Epidemic 1832 – Cholera Epidemic

  5. New York City Water System 1842 Croton Reservoir Finished

  6. New York City Watersheds Croton (1842-1911) – 12 dams Catskill (1907-1927) – 4 dams Delaware (1937-1965) – 2 dams

  7. New York City Aqueducts Carry water from reservoirs Elevated channels in mountains Tunnels under river Drop 13” per mile Old Croton Aqueduct

  8. Never inspected and valves never closed New York City Water Tunnels Tunnel No. 1 (1917) Tunnel No. 2 (1937) Tunnel No. 3 (1970-2020) 10’-24’ diameter 60 miles long 400’-800’ deep 12” drop per 100’

  9. New York City Water Tunnels tunnels

  10. Above Ground The Shaft New York City Water Tunnel No. 3 x

  11. Rock Goes Up! New York City Water Tunnel No. 3 x Equipment Comes Down

  12. Sandhogs New York City Water Tunnel No. 3 x

  13. Enlarging Blasting New York City Water Tunnel No. 3 x

  14. New York City Water Tunnel No. 3 x Tunnel Boring Machine

  15. Environmental Battles New York City Water System Congress and EPA 1974 Safe Drinking Water Act (SDWA) 1986 SDWA Requires Disinfect & Filter 1989 Surface Water Treatment Rule (SWTR) New York City $3-$8 Billion Filtration @300M/Year (or) $500 Million Land Acquisition

  16. Environmental Battles New York City Water System City Watershed Restrictions SLand Acquisition 80,000 Acres 90% Forested SAgriculture Management Voluntary 85% Participation SSeptic System/ Wastewater Upgrades Disputed Payment for Upgrades

  17. New York City Water System Land Acquisition

  18. 1997 Memorandum of Agreement (MOA) New York City Water System - Landmark environmental milestone - Saved New York City $billion’s - Cooperative agreement between City and watershed property owners/ farmers - Filtration waivers granted 1993, 1997, 2002, 2007

  19. Facilities Today in 2013 New York City Water System Open Water Tunnel No. 3 – Now connecting to distribution Open Croton Filtration Plant – Necessary for water quality Open Catskill/ Delaware UV Facility – EPA requires 2 types of disinfection

  20. Croton Filtration New York City Water 2013 Catskill/ Delaware UV Facility Tunnel No. 3

  21. Conclusions: - Population growth - Water system growth - Watershed growth - Growth of regulations - Growth of treatment - MOA agreement - Protection of watersheds New York City Water System

  22. THEEND

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