1. Great floods in the Passaic Basin arise only after a specially violent precipitation.

2. Under present conditions floods may be expected at frequent intervals.

3. A part of the damage along the lower valley is the result of encroachments on the part of individuals and public and private corporations.

4. The channel in the lower valley may be improved at certain points by straightening it and judiciously making cut-offs.

5. Without the construction of numerous levees the lower valley channel can not be made to carry great flood waters without damage.

6. Immunity from floods can be effected only by the construction of catchment reservoirs in the highlands or levees in the lowlands.

7. Levee construction would involve more damage than is now caused by floods, and the cost thereof would be prohibitive.

8. Flood catchment reservoirs may be constructed economically and provide storage to compensate for the dry-season flow, thereby maintaining water power at Paterson, Passaic, and other points, and providing for municipal water supply in the future.