d 585 feet long would create a lake
having an area of 520 acres, the surface of which would be 380 feet
above sea level. The drainage area tributary to this point has an area
of about 20 square miles, and as the proposed reservoir would have a
capacity of 915,800,000 cubic feet, there could be conserved a run-off
of 20 inches. Allowing for a flood run-off of 12 inches there would
still be available for compensating purposes 8 inches on the basin,
equal to 373,550,000 cubic feet. The construction of this reservoir
would involve the relocation of about 2 miles of the Ringwood branch of
the New York and Greenwood Lake Railroad, and the condemnation of
comparatively valuable improvements in the proposed basin.

_West Brook reservoir_.--The drainage from 5.7 square miles might be
conserved by the erection of a dam on West Brook, a tributary of Wanaque
River, which enters it from the west. There is an available site at
which a dam 280 feet high might be erected. At this elevation the length
along the top would be about 1,150 feet and about 2,330,000,000 cubic
feet of water would be impounded. Little benefit would be derived from
such a reservoir, as the limited drainage area affords a comparatively
small proportion of flood run-off that might be well cared for at a
lower point. For compensating purposes, however, a reservoir might be
constructed here, the capacity of which could be adjusted to the actual
demands. If the dam were raised to a height of about 280 feet from the
base the storage afforded would be equal to 176 inches on the watershed,
or about four average years of precipitation, which is far beyond all
probable storage necessities. The maximum available storage capacity is
given in this case merely to show possibilities.

PEQUANAC SYSTEM.

There are few available reservoir sites of large size along the lower
reaches of Pequanac River. In the upper basin, however, there is a
sufficient available storage capacity to afford almost complete control
of destructive floods from that part of the drainage area. Large tracts
are already reserved by the city of Newark for collection of municipal
supply, and the storage capacity developed is sufficient to serve the
city throughout the driest seasons. The total capacity of Clinton,
Oakridge, and Canistear reservoirs is about 1,155,000,000 cubic feet.
These basins are not available for flood catchment, as the water is used
for city purposes and an endeavor is made to have i