Delaware River

John Callahan selected to the DRBC Advisory Committee on Climate Change


DGS scientist John Callahan was selected as a member of the Delaware River Basin Commission (DRBC) Advisory Committee on Climate Change (ACCC).  John was selected as one of nine non-reserve members, to serve along with nine reserve members, to make up the 18-member committee.

David Wunsch, Director and State Geologist of the Delaware Geological Survey (DGS) participated in AAAS Forum


David Wunsch was selected to present at the AAAS 20x20 Forum, where current and alumni AAAS Science & Technology Policy Fellows present short, visual presentation on how science intersects with policy. Wunsch presented the role of the Delaware State Geologist serves as the Decree Party Principal for the state of Delaware in negotiations for water management in the Delaware River Basin. His presentation also relayed insights into New York City’s water supply, which depends heavily on water transferred from the Delaware River Basin.

David Wunsch was guest speaker at winter meeting of Geological Society of New Hampshire


David Wunsch, DGS Director, was the guest speaker at the winter meeting of the Geological Society of New Hampshire held on January 16, 2015, in Concord, NH. Dr. Wunsch spoke about his role as the State of Delaware’s designee to the Advisory Committee for the Delaware River Master program per a U.S. Supreme Court Decree in 1954. He also covered water management issues in the Delaware River, and geological issues related to the leakage and repairs to the NYC aqueduct system.

ADVISORY: Decree Party Public Listening Sessions on the Flexible Flow Management Program (FFMP)


The Parties to the 1954 U.S. Supreme Court Decree entered in the Delaware River Case (Decree posted at are interested in, and invite you to share your comments on the Flexible Flow Management Program (FFMP), an adaptive framework for managing diversions and reservoir releases in the Delaware River Basin.

The Decree Parties—The State of Delaware, the State of New Jersey, the State of New York, the Commonwealth of Pennsylvania, and the City of New York—are pleased to announce two upcoming FFMP Listening Sessions that are intended to solicit feedback on the FFMP from a broad cross section of interested parties. Feedback accepted will be limited to FFMP-related issues only; comments on other topics or programs will not be accepted at these sessions. Specifically, the Decree Parties invite input on the following topics addressed by the FFMP:

Flood Mitigation under the FFMP
Aquatic Life and Ecosystems under the FFMP
Water Supply Obligations and Reliability
Recreational Use
Other Topics addressed by the FFMP.

The Listening Sessions will be held at two locations (see below) in the Delaware River Basin. The program at each location will consist of a brief overview of the 1954 U.S. Supreme Court Decree, and the roles and responsibilities of the Decree Party Principals, the Delaware River Master, and the Delaware River Basin Commission. Each session will be 80 minutes in length.

Hurricane Sandy Q&A - Experts at UD aid state, National Weather Service during storm


4:37 p.m., Oct. 31, 2012--The Office of the State Climatologist and the Delaware Geological Survey (DGS), both based at the University of Delaware, provided the Delaware Emergency Management Agency (DEMA) and the National Weather Service with weather, coastal flooding and stream flooding information for Delaware during Hurricane Sandy.