Section 4: town profile section 4: ashokan reservoir and the catskill aqueduct west of the hudson river approximately 40% of the city’s average water supply demand is provided by the catskill catskill/delaware watersheds croton watershed new york city's hetmoi water supply system kentilo. The nyc water supply system is made up of three surface water sources – the croton watershed (375 square miles) east of the hudson river, and the combined catskill and delaware watershed (1,597 square miles) west of the hudson river. Water sector report public comment draft 6/19/00 collected from upland watersheds, held in storage reservoirs, and sent via a system of tunnels and the systems deliver water to the city via the new croton aqueduct, the catskill aqueduct, and the delaware aqueduct the new croton aqueduct delivers water from the.
Table 2-5 wetland types and areas in the catskill, delaware, and croton watersheds of the new york city water supply system (table includes wetlands of less than 10 acres) wetland type catskill acres (% of total wetland area. Only the delaware aqueduct, which runs beneath the eastern portion of the site, has sufficient pressure to supply the 2-bgd water to the uv facility to use the 90-year old catskill aqueduct as a source of gravity supply requires a 25 mile segment, from the kensico reservoir to the uv facility, to be pressurized by over 40 feet of head to. Water for the future also includes structural upgrades to the catskill aqueduct, rehabilitation of the queens groundwater system to supplement upstate supplies, and water conservation initiatives in the city putnam, and westchester counties this water comes from the catskill, delaware, and croton watersheds that extend more than 125 miles. Challenges in the catskills reconstructing the nyc gilboa dam rodney e holderbaum, pe paul costa, pe alon dominitz, pe the 84-year-old gilboa dam that impounds schoharie reservoir is a key component of the new york city department of environmental protection's (nycdep) water supply system.
Water for the future program september 24, 2015 •design effort •logistics •questions 3 • delaware aqueduct • 85 mile tunnel 800 million gallons per day • leaking 15-35 mgd • water for the future program • bypass tunnel across the hudson river –connection planned for 2022 • catskill aqueduct repair and rehabilitation. • catskill aqueduct repair and rehabilitation — the 74-mile-long catskill aqueduct, which conveys water from the ashokan and schoharie reservoirs, will undergo a repair and rehabilitation project starting in 2016. The catskill/delaware watershed, which includes the schoharie basin, is the largest unfiltered water supply in the united states maintaining this remarkable water supply involves understanding the current threats to water quality, how those threats impact watershed communities and the importance behind watershed programming to address these. The delaware aqueduct is the longest tunnel in the world and supplies half of new york city’s water the catskill aqueduct is a $156 million project and it will repair a number of small leaks, replace more than 30 century-old valves, remove biofilm (a harmless bacteria that has accumulated overtime and has consequently slowed down the.
Evaluate alum treatment at maximum flow on the catskill aqueduct by nicholas prokopowicz 2 presentation overview • background of nyc water supply system • summary of water for the future project • history of alum treatment • overview of study • catskill • delaware. Catskill and delaware watersheds supply all of new york city’s daily water supply needs, and these source waters are so pristine that they do not have to be filtered protecting new york city. The delaware aqueduct conveys more than half of new york city’s high-quality drinking water every day from reservoirs in the catskill mountains and repairing it is the central component of the.
The kensico reservoir is a reservoir located in the towns of the water that does supply new york city travels down either the catskill aqueduct or the delaware aqueduct if it goes down the announced and commenced a $314 million project to rehabilitate the kensico dam the rehabilitation project consisted of reconstructing the. From reservoirs in the catskill, delaware, and croton watersheds via the catskill, delaware, and new croton aqueducts to down-stream balancing reservoirs and ultimately to the city’s distribu- catskill aqueduct intake structure can be made from either basin. From the headworks to the divide of the croton watershed sixty miles of catskill aqueduct is under the care of the northern aqueduct department, robert ridgway, department engineer, to whom falls the hudson river crossing and the great siphons under the rondout, wallkill, and moodna valleys. Percent of our supply is from the catskill and delaware systems catskill aqueduct • california road pumping station 43 mgd - delaware aqueduct millions of gallons per day we here at suez obtain our water from both the catskill/ delaware watersheds. Rehabilitation and replacement program contracts with new york city department of environmental protection, the catskill watershed corporation (“cwc”) shall act as program manager for the septic program and implement the septic program consistent with the terms of.
York city’s catskill/delaware watershed policy in terms of its scientific worth and commission was formed to build a second aqueduct from the croton watershed new york city’s need for additional water was so great that the new croton aqueduct opened in 1890, while still under construction. The catskill turbidity control program is a collection of activities that fall generally into three categories: (1) turbidity source control measures within the schoharie and ashokan watersheds (2) improvements to infrastructure, most notably along the catskill aqueduct and (3) operational changes, some of which are facilitated by ost. Construction of catskill aqueduct, 1911 the catskill aqueduct , part of the new york city water supply system , brings water from the catskill mountains to yonkers where it connects to other parts of the system history construction commenced in 1907 the aqueduct proper was completed in 1916 and the entire catskill aqueduct system including three dams and 67 shafts was completed in 1924.
Over the past 18 years, in the catskill/delaware watershed, the city has upgraded 4,603 septic systems, built three wastewater treatment plants, conducted 302 projects on streams, built 30 sand and salt storage facilities and countless other upgrades to farms and houses to control runoff. Because the kensico reservoir is the last impoundment of catskill/delaware water prior to entering the city's distribution system, the protection of this reservoir is critically important to maintaining filtration avoidance for the city. Water from the catskill aqueduct passes into a large transmission main just before reaching hillview reservoir it travels through yonkers and into mount vernon catskill / delaware watersheds west of the hudson river the nyc dep has implemented a series of programs to evaluate.
The catskill and delaware systems are located about 50 miles north and northwest of the algonquin project facilities however, expansion work on two sections of algonquin pipeline will take place within the croton watershed, closer to new york city. This water comes from the catskill, delaware, and croton watersheds that extend more than 125 miles from the city, and the system comprises 19 reservoirs, three controlled lakes, and numerous tunnels and aqueducts. (“the city”) has a long-term watershed protection program for its catskill/delaware water supply that adequately meets the requirements of the surface water treatment rule (swtr) and the interim enhanced surface water treatment rule (ieswtr) for unfiltered water supply systems.