|Please direct questions to:|
Robert R. Mason, Jr.
Delaware River Master
U.S. Geological Survey
National Center, MS-415
Reston, Virginia 20192
Deputy Delaware River Master
U.S. Geological Survey
Milford Professional Park
10 Buist Road, Suite 304
Milford, Pennsylvania 18337
(703) 648-6693 (fax)
| (570) 296-7213|
(570) 296-9414 (fax)
The imposing 40-foot high U.S. Geological Survey (USGS) streamgaging station on the Delaware River at Montague, N.J. was established in 1939 and has been in continuous operation since then. A data collection platform on top of the station uses satellite telemetry to deliver streamflow information in real time. A critical link in the USGS network, this station is used to monitor flow and releases from the New York City reservoirs into the headwaters of the Delaware River Basin, as required by the Supreme Court Decree of 1954.
Flexible Flow Management Program (FFMP) Agreements
- 2015 FFMP | Press Release
- 2014 FFMP | Press Release
- 2013 FFMP | Press Release
- 2012 FFMP | Press Release
FFMP Presentation September 26, 2007, DRBC Meeting (A PowerPoint Document)
News Release, Decree Parties Announce Changes to the Flexible Flow Management Program to Improve Habitat Protection in Summer 2009
Agreement for Temporary IERQ Extraordinary Needs Bank Releases Program for Summer 2009, Agreement was approved by the Decree Parties on May 27, 2009
Temporary Supplemental Releases Program for Tentative 2009 Rondout West Branch Tunnel Shutdown, Approved September 2, 2009
Provisional Hydrologic Data:
Data presented on the Office of the Delaware River Master website are reviewed periodically to ensure accuracy. The data are considered provisional, however, until they are published in the annual report of the River Master.
Data users are advised to carefully consider the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences.
Information on the accuracy and appropriate uses of the data can be obtained by contacting the Deputy Delaware River Master.
- Current Reservoir and Streamflow Data: Table (PDF)
- Previous Reservoir and Streamflow Data: Archive
- Storage for New York City Reservoirs: Graph (PDF)
- Monthly Hydrologic Conditions for the Upper Delaware River Basin Summaries: Archive (PDF)
- Consumption of Water by New York City and Outside Communities, 1940 - 2014
- OST Summary Data