Drought concerns highlight lack of backup water supply in DC, Arlington

Luck Stone quarry is being converted into Milestone Reservoir in Loudoun County. (Courtesy Loudoun Water)Luck Stone quarry is being converted into Milestone Reservoir in Loudoun County. (Courtesy Loudoun Water)While local water officials monitor drought conditions, and weigh the likelihood of needing to tap water reserves to supplement the Potomac River, more local utility companies are utilizing an age-old method of increasing their backup supply.
“Quarries have been used since Roman time