The workshop was held at the Cacapon Resort State Park, WV, on April 5-6, 2018. The workshop report was prepared for Chesapeake Bay Program by Interstate Commission on the Potomac River Basin.
Report: Workshop to Develop a 2008 Baseline for the CBP Stream Health Outcome Archives
In 2021, Commissioners of the Interstate Commission on the Potomac River Basin (ICPRB) passed a Resolution on Enhancing Water Supply Resilience for the Washington Metropolitan Area. This resolution is the first step in updating the two foundational agreements of the Washington metropolitan area cooperative water supply system: the Low Flow Allocation Agreement (LFAA) of 1978 and the Water Supply Coordination Agreement (WSCA) of 1982. To facilitate such an update the resolution called for the following action items:
- Develop a Task Force on the WSCA to reinitiate dialogue on revisions that would accurately reflect changing conditions. This includes the need for strengthening water security against spills, cybersecurity attack, and water scarcity and the ability to include additional suppliers;
- Convene a Work Group to discuss the ten sets of options identified in the 2018 review of the LFAA; and
- Convene scientific workshops on state-of-the-art approaches to environmental flows for large river systems.
To address the third action item, a virtual workshop was held over one-and-a-half days in May 2022, with the explicit purpose of answering the following questions with respect to the Potomac River, which supplies most of the Washington, D. C., metropolitan area drinking water:
- Are there other approaches now for determining environmental flows in large, relatively unregulated rivers like the Potomac?
- If there are, what data, analysis tools, and assessments are needed to make a scientifically defensible change?
The information presented and discussed during the workshop provides input to the LFAA workgroup in the event the group recommends revisiting the current environmental flow-by target used during low flow periods. The question of whether or not to study the flow-by was informally discussed during the workshop but the intent of the workshop was to gather the relevant information, not recommend a course of action.
This pamphlet is used in concert with a spreadsheet inventory to identify entities in the Potomac basin that either directly or indirectly affect the realization of the Potomac Basin Comprehensive Water Resource Plan’s vision for the basin. It also summarizes the roles, responsibilities, and areas of authority of those entities to inform and integrate future comprehensive planning and implementation activities.
This is the modified, April 2014, version of a report that was originally delivered to the Army Corp of Engineers, Baltimore District in April 2013. The report was modified in April 2014 to accommodate edits requested by USACE headquarters. A large section of the original 2013 report was reorganized into a new Appendix (D), and summary text from several of the original appendices was copied into the report. The overall content of the two reports is essentially the same. The original, 2013 version is available in ICPRB publications. The final, eleven appendices are available for download.
This report was delivered in April 2013 to the Army Corp of Engineers, Baltimore District. The report was modified in April 2014 to accommodate edits requested by USACE headquarters. A large section of the original 2013 report was reorganized into a new Appendix (D), and summary text from several of the original appendices was copied into the report. The overall content of the two reports is essentially the same. The USACE modified report is available in ICPRB publications for year 2014.