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Engineering firm: Dillard Creek could supply long‑term demand but has drought and permitting limits; test wells are cost‑effective alternative
Summary
CHA reported Dillard Creek average flows sufficient on paper to meet 30‑year buildout demands if daily withdrawal rules and storage are used, but drought-period shortfalls and significant permitting and environmental studies make test wells and a hybrid approach worth considering.
Stephen Steele of CHA told the Nelson County Board of Supervisors on Oct. 14 that two primary options exist to serve projected buildout demand around the Larkin property: a surface-water intake on Dillard Creek or drilled groundwater wells.
CHA estimated the creek’s average daily flow at about 8.3 million gallons per day and noted Virginia rules permitting withdrawal of no more than 10 percent of daily flows, which would yield roughly 830,000 gallons per day under average conditions — comfortably above the Authority’s projected 30‑year additional demand of about 81,000 gallons per day. However, Steele emphasized that daily calculations are…
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