Abnormally dry conditions — despite recent rainfall — have led to a continued drought warning in Chester County. Earlier this year, the Pennsylvania Department of Environmental Protection (PADEP) issued a drought warning due to the lack of significant rainfall in the county since 2025.
Under the PADEP’s drought warning guidance, residents, businesses, farmers, and other water consumers are asked to voluntarily reduce their daily water usage by 10 to 15 percent, or roughly six to nine gallons per person. For reference, the average showerhead uses about two gallons of water per minute, while washing dishes by hand can use up to 27 gallons, depending on water-use habits.
Executive Director of the Chester County Water Resources Authority Seung Ah Byun said, “We’re asking residents and businesses, including private well owners, to reduce their non-essential water use during this drought warning.
“The reservoirs, which provide water to public water systems in Chester County, are currently in good condition. However, declining groundwater levels could affect residents and farmers who use private wells, making water conservation more crucial if drought conditions continue in the upcoming months.”
Despite intermittent spring rainfall and considerable snowfall last winter, Chester County experienced diminished groundwater recharge from November through March, a period when trees and other vegetation typically reduce their water uptake. Instead of recharging during that time, groundwater levels — which help sustain streamflow — continued to decline, leaving streams well below normal levels throughout Chester County.
Anyone who relies on groundwater wells should monitor their water use and avoid overburdening their wells. Excessive pumping can lead to burned-out pumps or dry wells that cannot replenish quickly enough to meet demand.
Residents and businesses that rely on private wells and on-site septic systems should also remain mindful of water use. While much of the water used indoors eventually returns to the ground through septic drainfields, groundwater recharge can be slow and uneven, particularly during dry conditions.
PADEP’s drought warning, the second of the state’s three drought classifications, is based on the availability of public water supply and data on precipitation, surface water flow, groundwater levels, and soil moisture. The last time Chester County was under a drought warning was from November 2001 to February 2002.
Refer to www.chesco.org/drought for more information on current water levels, forecasted conditions, frequently asked questions, and water conservation tips.
