Cost of Pumping Water. Cost per million gallons raised one hundred feet high, including labor, coal, oil, waste and supplies, and ordinary repairs; but excluding interest and depreciation... $3.75 Cost of Filtration. Cost per million gallons of filtered water, including labor, cost of wash and waste water, lost sand, sanitary analyses of water, ordinary repairs, superintendence, wages of watchmen, and all incidental expenses; but excluding interest, depreciation and cost of pumping water to filters: Hudson River water... Wallkill Reservoir water.. Interest and Depreciation. $4.00 3.00 Interest on cost of works has been computed at the rate of 3 per cent. Detailed estimates of cost have been made, and are presented herewith in abstract, of five projects for supplying 250 million gallons of water daily, two for supplying 460 million gallons daily, and two for supplying 500 million gallons of water daily. X. ESTIMATES OF COST OF CONSTRUCTION, OPERATION A.-250,000,000 Gallons Daily from the Adirondack It is proposed to dam Schroon River at Tumblehead Falls, thus raising the levels of Schroon and Brant Lakes. A description of the storage project, together with estimates of its cost, will be found in Mr. Geo. W. Rafter's report. The water is to be brought to New York through a 13-foot aqueduct and delivered to a new 250,000,000-gallon reservoir just above the city line, 310 feet above sea level. The aqueduct follows Schroon River from the dam to Hudson River, passing through Warrensburg, and under Hudson. River just above the highway bridge at Thurman Station. It follows Hudson River on the west bank from Thurman to Hadley, where it leaves the Hudson Valley and follows for a few miles the general direction of the Adirondack Railroad, heading for the Mohawk River, which is crossed about four miles west of Schenectady. Thence the course of the aqueduct is nearly straight to Cairo Round Top, which it pierces. It then skirts the base of the Catskill Mountains to a point about three miles from Kingston, where three lines of 8-foot 4-inch steel pipe, lined and backed with concrete, are laid across the valleys of Esopus and Rondout Creeks. The line then follows the range of hills on the west bank of the Hudson to just above Roseton, where it crosses the river in a cast-iron and concrete-lined tunnel to Low Point Station, on the N. Y. C. & H. R. R. R., about ten miles below Poughkeepsie. From Low Point the line crosses the rolling land between the river and Fishkill Mountains, going through the latter in tunnel and entering the valley of Clove Creek. For the remainder of its course the aqueduct is a succession of tunnels and pipe lines. Crossing Peekskill Creek half a mile below Putnam Valley, and the Croton River just below the Cornell dam site, it passes then under the villages of Claremont and Spring Valley, and about half a mile to the east of Grassy Sprain Reservoir, terminating in a new distributing reservoir about two and a half miles north of the present Jerome Park reservoir. It is the intention to take the water from the proposed dam at Tumblehead Falls and to compensate by purchase or otherwise for all the water powers which would be destroyed by the abstraction of the water. While it would be desirable, as pointed out by Mr. Rafter, to preserve these water rights, the question of the pollution of the water in the open channel and mill flumes in case the power were preserved, should have very careful consideration. In the estimate of cost of this project, therefore, the sum of $2,000,000 has been included to cover the value of these rights, and of the undeveloped powers on the Schroon. The damages to water powers on the Hudson, below Hadley, by the abstraction of 250,000,000 gallons per day has been estimated, following the line of argument suggested by Mr. Rafter, at $2,600,000, which sum is also included in the estimate. The locations of the aqueduct line and Schroon River reservoir are shown on Plate IX. |