Skip to main content

The Role of a Conservative Chemical Model as a Decision Support Tool For a Complex TMDL Process: Case Study for Delaware Estuary

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

or click here to sign up for a free trial


Delaware Estuary was listed as impaired by PCBs and required to develop TMDLs. Developing TMDLs for a complex pollutant like PCBs in Delaware estuarine system with numerous point and non-point sources is an enormous task requiring substantial levels of effort, funding and time. The successful development of TMDLs relies upon both the scientific understanding of the system and efficient managerial decisions allocating limited resources to essential tasks. The Delaware River Basin Commission developed numerical models in support of the TMDL. These models provided valuable insight into dynamic behaviors of the Delaware Estuary. Scenario simulation results show that the boundary at the head of the tide has a relatively dominant influence throughout the Delaware River Estuary, therefore additional monitoring efforts were expended at that boundary. The travel time simulation results indicate that the Estuary requires between 89 to 123 days of residence time depending on the flow conditions. This paper presents examples of the use of a simple conservative chemical model to: 1) support management decisions in a complex TMDLs developmental process, and 2) provide a better understanding of the hydrodynamic behavior of the Delaware Estuarine system.

Document Type: Research Article


Publication date: January 1, 2005

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Ingenta Connect is not responsible for the content or availability of external websites

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Partial Open Access Content
Partial Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more