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DEQ preview: Coastal Plain groundwater study finds historic drawdown, salt‑water intrusion risks
Summary
DEQ presented a draft groundwater‑supply report required by the 2024 resolution that finds the Potomac Aquifer supplies roughly 70% of withdrawals east of I‑95, total withdrawals of about 96 million gallons per day, historical drawdown and localized subsidence, and modeled limits on new large withdrawals.
DEQ on Nov. 18 previewed a draft report on groundwater supply east of Interstate 95 that the agency will deliver to the General Assembly. Brian Campbell, manager of DEQ’s Groundwater Characterization and Monitoring Program, summarized technical findings, long‑term trends and recommendations.
Key technical findings presented include:
• Total withdrawals in the Eastern Virginia Groundwater Management Area are approximately 96,000,000 gallons per day; the Potomac Aquifer accounts for about 70% of those withdrawals.
• Historical drawdown has been substantial in pumping centers such…
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