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Edgemont Reservoir rehabilitation nears 60% design; city seeking larger water appropriation and MDE funding
Summary
Staff reported the Edgemont Reservoir Rehabilitation Project is approaching 60% design, with 100% design planned in early 2027 and construction in mid‑2027; the city requested a water appropriation of 2.75 million gallons per day (max 4.8 MGD) and cited prior MDE funding approvals and loan/grant components.
Project staff provided an update on the Edgemont Reservoir Rehabilitation Project, reporting that the project is approaching 60% design with 100% design expected in early 2027 and construction anticipated in mid‑2027.
Staff said they requested an appropriation permit from the Maryland Department of the Environment (MDE) for 2.75 million gallons per day with a maximum withdrawal of 4.8 MGD. They described prior MDE funding approvals: an appropriation previously approved at $15,750,000 with a loan component, principal forgiveness and grant elements noted in the project memo. The project team said earlier studies found seepage and voids under concrete components; accordingly the work will include curtain grouting along the dam foundation and reconstruction of the emergency spillway so the facility meets current regulatory standards for a high‑hazard dam.
Staff emphasized that while historic work on the earth dam will remain in place, significant subsurface grouting and spillway reconstruction are required to address seepage and to meet the probable maximum precipitation design standard now required by MDE.
Why it matters: the Edgemont project addresses infrastructure and water‑supply capacity; the appropriation and funding decisions will shape design, construction timing and local water resources management.
