We Must Protect, Preserve and
Extend our Water Supply
Integrated Water
Resources PlanPractical Solutions for a Sustainable Future
Final Integrated Water Resources Plan Now Available
After five years of work, we are proud to share the Final Integrated Water Resources Plan (IWRP)!
The IWRP reflects collaboration among CWWMG member organizations, technical experts, and basin partners, and represents a shared effort to understand long-term water quantity and water quality challenges and opportunities. This document is the result of sustained technical analysis and coordinated stakeholder engagement conducted across the basin over the past five years.
Read the Final IWRP (PDF, opens in a new tab)
Appendices to the final IWRP are provided below.
- Appendix C: Featured Event - Hurricane Helene (PDF, opens in a new tab)
- Appendix D: Water Demand Projection Updates (PDF, opens in a new tab)
- Appendix G: Low Inflow Protocol for the Catawba-Wateree Project (PDF, opens in a new tab)
- Appendix I: South Carolina v. North Carolina Settlement Agreement (PDF, opens in a new tab)
- Appendix K: Initial Proposal Document for Source Water Protection Intake Form (PDF, opens in a new tab)
Additional IWRP resources are available here for public review and use.
IWRP Fact Sheet (PDF, opens in a new tab)
IWRP Letter of Support Template (Word document, opens in a new tab)
Webinar Recording and Presentation Materials
Thank you to everyone who joined our recent IWRP webinar. For those who could not attend, the recording is available below along with a downloadable PDF of the presentation. These materials provide an overview of the planning process, key findings, and opportunities for continued engagement.
IWRP Viewer
Explore the data and watershed modeling results developed for the Catawba-Wateree Integrated Water Resources Plan using the IWRP Viewer. This interactive tool allows users to examine current and projected hydrologic and water quality conditions across the Basin, compare future land use and climate scenarios, view results by subbasin and catchment, and examine management opportunities. The Quick Start Guide provides instructions on navigating the tool and downloading results. Questions on the viewer can be sent to waterfall@rti.org.
IWRP Purpose and Framework
The CWWMG is committed to an ongoing water resources planning process and has finalized the IWRP as part of this process.
To chart the strategic direction for the IWRP, the CWWMG hosted four workshops in October 2020 with over 70 participants and gathered over 150 ideas. Participants identified six categories for future study, including: Communication & Education, Implementation & Evaluation Mechanisms, Water Quality, Collaboration & Consistency, Water Quantity and Future Planning.
This visioning and planning work also recommended a phased approach to the IWRP over five years to align with the CWWMG funding and 5-year Projects Strategic Plan. Click here to review a summary of the IWRP Framework and 5-Year Schedule (opens in a new tab).
At least every 10 years, the States of South Carolina and North Carolina work with the CWWMG to provide updates on water flow in the Catawba-Wateree River. These updates are supported by regulatory authorities in both states and were stipulated in the 2010 settlement agreement of the U.S. Supreme Court case S.C. v. N.C., Original No. 138. Click here to read more about the original 2014 Water Supply Master Plan.
Project Team
The CWWMG has contracted with a team of consultants comprised of HDR Engineering, RTI International, Catawba-Wateree Initiative, William A. Kreutzberger, and the Water Center at the University of Pennsylvania to conduct technical research and development for the IWRP.
In addition to member involvement, input, and oversight during plan development, the CWWMG assembled a Stakeholder Advisory Team (SAT) to ensure a broad level of input from a diverse group of key organizations having an interest in the future planning efforts for the Basin.