Low-flow study of streams in Albany County, New York

In 1967, the city of Albany and the U.S. Geological Survey began an enlarged cooperative program to evaluate the surface-water resources of the county. This interim report presents an analysis of the low-flow data that the program has obtained to 1970.

As part of this program, personnel of the Geological Survey made two series of base-flow measurements or no-flow observations of many streams on August 19 and September 25, 1970. These measurements and the corresponding runoff values expressed as cubic feet per second per square mile of drainage area are listed in table 1. At many sites, where additional measurements had previously been made, an estimate of the frequency of occurrence of certain low flows has also been tabulated. In addition to discharge measurements, water samples for chemical analysis were collected on August 19.