Skip Links

USGS - science for a changing world

Open-File Report 2011–1177

Report of the River Master of the Delaware River for the Period December 1, 2005–November 30, 2006

By Bruce E. Krejmas, Gary N. Paulachok, and Stephen F. Blanchard

Thumbnail of and link to report PDF (3.0 MB)


A Decree of the Supreme Court of the United States, entered June 7, 1954, established the position of Delaware River Master within the U.S. Geological Survey (USGS). In addition, the Decree authorizes diversions of water from the Delaware River Basin and requires compensating releases from certain reservoirs, owned by New York City, to be made under the supervision and direction of the River Master. The Decree stipulates that the River Master will furnish reports to the Court, not less frequently than annually. This report is the 53rd Annual Report of the River Master of the Delaware River. It covers the 2006 River Master report year—the period from December 1, 2005, to November 30, 2006.

During the report year, precipitation in the upper Delaware River Basin was 55.03 inches (in.) or 126 percent of the long-term average. Combined storage in Pepacton, Cannonsville, and Neversink Reservoirs was above the long-term median level on December 1, 2005. Reservoir storage remained above long–term median levels throughout the report year. Delaware River operations during the year were conducted as stipulated by the Decree.

Diversions from the Delaware River Basin by New York City and New Jersey were in full compliance with the Decree. Reservoir releases were made as directed by the River Master at rates designed to meet the flow objective for the Delaware River at Montague, New Jersey, on 27 days during the report year. Releases were made at conservation rates—or rates designed to relieve thermal stress and protect the fishery and aquatic habitat in the tailwaters of the reservoirs—on all other days.

During the report year, New York City and New Jersey complied fully with the terms of the Decree, and directives and requests of the River Master.

As part of a long-term program, the quality of water in the Delaware Estuary between Trenton, New Jersey, and Reedy Island Jetty, Delaware, was monitored at various locations. Data on water temperature, specific conductance, dissolved oxygen, and pH were collected continuously by electronic instruments at four sites. In addition, selected water-quality data were collected at 19 sites on a twice-monthly basis and at 3 sites on a monthly basis.

First posted November 2011

For additional information contact:
Gary N. Paulachok
U.S. Geological Survey
10 Buist Road, Bldg. 3, Suite 304
Milford Professional Park
Milford, PA 18337
Phone: 570–296–7213
Fax: 570–296–9414

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Krejmas, B.E., Paulachok, G.N., and Blanchard, S.F., 2010, Report of the River Master of the Delaware River for the period December 1, 2005–November 30, 2006: U.S. Geological Survey Open-File Report 2011–1177, 79 p. (Also available at

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
[an error occurred while processing this directive] URL:
Page Contact Information: Contact USGS
Page Last Modified: Thursday, 08-Dec-2016 00:04:51 EST