Other Modeling & Monitoring Programs
DRBC Modeling Efforts

DRBC develops and applies various models for basin waters. Examples of models created and utilized by DRBC staff include the following:

  • A real-time flow and transport model, which is run nightly and tracks the movement of water in the tidal Delaware River. If a spill occurs, the most recent model run can be used along with a water quality model to predict where the pollutant will go and what the concentrations will be. This is especially important to protect drinking water intakes in the tidal Delaware River;
  • Models to determine mixing zones for total dissolved solids, toxic pollutants, and heat dissipation areas for regulated discharges;
  • Assimilative capacity determinations for a water quality parameter of concern;
  • TMDL development to support basin states and the U.S. EPA; and
  • No Measurable Change evaluations for dischargers in Special Protection Waters.

Learn more.

Other DRBC Monitoring Programs

Monitoring for Metals: DRBC monitors metals, such as copper, zinc, nickel, and mercury, in ambient water, sediment, and tissues of aquatic life of the Delaware Estuary to ensure compliance with water quality criteria.

Ambient Toxicity Monitoring: As part of ongoing programs to control toxic substances in the Delaware Estuary, the DRBC conducts periodic monitoring of ambient water toxicity in the estuary and has requested monitoring of acute and chronic effluent toxicity by dischargers. 

Fish Tissue Monitoring: Since 1990, DRBC has periodically sampled tissues of resident fish species in the non-tidal and tidal portions of the main stem Delaware River.

Monitoring Chlorides: DRBC has adopted criteria and monitors chlorides as part of the commission’s flow and drought management program, which focuses on controlling the upstream migration of salty water from the Delaware Bay during low-flow conditions.

Click the respective links to learn more about each program.