The University of Delaware’s Water Resources Agency has collaborated with the Delaware DNREC to study instream flow (ecological) needs of the four drinking water streams (Brandywine, Red Clay, White Clay, and Christina creeks) in northern New Castle County, Delaware.
- Instream Flow Standards for Northern New Castle County, Delaware, 1998
- Report of the Joint Task Force, Instream Flow Needs Analysis for Northern New Castle County, Delaware. Phase Two: 7Q10 Assessment, January 31, 1997
- Instream Flow Needs Analysis for Northern New Castle County, Delaware, Phase One: 7Q10 Assessment, 1995