700 



NEW YORK STATE MUSEUM 



There are several dams below PMllipsburg at which power 

 is used for operating mills and factories, although the total 

 power does not much exceed 1000 horsepower. In some in- 

 stances the plants have a capacity in excess of that needed for 

 the minimum How of the stream. The principal developed 

 power is at Walden. The population here is from 2500 to 3000 

 people, and its prosperity depends upon the water-power which 

 has been developed by two dams, amounting to 500 horsepower 

 at minimum low T water flow\ To cripple this power would seri- 

 ously affect the community depending upon it. In the estimates 

 therefore very liberal figures have been used, which are con- 

 sidered sufficiently high to cover any method of compensation 

 which might be adopted. 



By increasing the hight of The dam at Phillipsburg to 422 

 feet above sea level, the flooded area would become 58 square 

 miles and the available storage capacity of the reservoir, w r hen 

 drawn down to elevation 402, would be 219,000,000,000 gallons 

 (29,300,000,000 cubic feet). With such a storage a minimum 

 yield would be 417,000,000 gallons daily. The total amount of 

 water impounded with full reservoir would be 387.000.000,000 

 gallons (51,700,000,000 cubic feet). It is stated in the report 

 that this reservoir wxmld be the largest artificial lake in the 

 world, but a comparison with Black river reservoir will show 

 that the latter is somewhat larger. Neither, however, is yet 

 built, and New York State can only claim, by reason of its 

 exceptionally favorable topography, to be the site of two of 

 the largest reservoirs thus far proposed anywhere. 



Some of the legal objections to the Wallkill river reservoir 

 have already been discussed. 



The estimated cost of construction of the Wallkill reservoir 

 for a supply of 250.000,000 gallons daily, the water to be filtered 

 and delivered into a new covered reservoir at New r York 310 

 feet above sea level, is $42,421,000. The annual cost for opera- 

 tion and maintenance is figured at (1,819,770, or at a cost per 

 million gallons for the water filtered and delivered into a reser- 

 voir at Xew York of #19.64. In these estimates labor is taken 

 at |2 per day. 



For 400.000,000 gallons daily from the Wallkill river the esti- 

 mate of cost on the basis of $2 per day for labor is 180,864,000, 

 with an annual cost for Operation and maintenance of $3,32-8,078, 



