HYDROLOGY OF NEW YORK 



GOT 



2) A larger proportion of the ultimate first cost may be de- 

 ferred by the Poughkeepsie plan than by either- the Catskill or 

 Adirondack plan. 



3) The time necessary for construction is also less. Water 

 from the Hudson at Poughkeepsie can be delivered in six years ; 

 from the Catskills, in seven years, and from the Adirondacks, 

 in seven and one-half years. 



4) The Adirondacks and the Hudson together would furnish 

 1,500,000,000 gallons per day, while the Catskill catchment can 

 not furnish more than 260,000,000 gallons, or, with Schoharie 

 creek, 460,000,000 gallons per day. 



5) The length of the aqueduct would be less from Pough- 

 keepsie than from either the Adirondacks or the Catskills. 

 From Poughkeepsie a high level aqueduct would be 60 miles in 

 length; from the Adirondacks, 203 miles, and from the Catskills, 

 100 miles. 



The lesser length of the Poughkeepsie aqueduct is not only 

 an important element in construction, but is quite as important 

 in maintenance and protection. 



Water taken at Poughkeepsie would require filtration, and 

 in the modern view it would also require filtration from the 

 Adirondacks, although it may be very appropriately questioned 

 whether a water supply from a seriously sewage-polluted stream 

 is desirable so long as unpolluted sources are available without 

 increasing the cost per unit. 1 



Reservoir on Wallkill river. Among other interesting reser- 

 voirs which have been recently proposed for the supply of Greater 

 New York, that on the Wallkill river may be described in detail. 

 This reservoir was reported upon by James H. Fuertes, whose 

 report appears in the Report of the Merchants' Association of 

 New York, made in 1900. 



Wallkill river rises in northern New Jersey^ a few miles south 

 of Sparta. It flows in a northeasterly direction, entering the 

 State of New York about half way between Liberty Corner and 

 Unionville. It then flows through Orange and Ulster counties, 

 joining Rondout creek, which empties into the Hudson river at 

 Kingston. 



Report of Committee on Water Supply of Merchants' Association of New 

 York. 



