Clinton Water Hardness & Quality Report (2026)

WSSC Water (Washington Suburban Sanitary Commission) serves Clinton, Maryland and surrounding areas of Prince George's County, operating multiple water treatment plants that serve the broader Washington metropolitan region. The utility draws from both surface water—primarily the Potomac River—and groundwater aquifers in the Piedmont region. WSSC Water employs conventional treatment processes including coagulation, filtration, and chlorination, and publishes an annual Consumer Confidence Report documenting results from over 500,000 tests annually, ensuring that residents receive water meeting all federal and state drinking water standards.

The Clinton area lies within the Potomac River watershed in Maryland's Piedmont physiographic province. The underlying geology consists of Precambrian metamorphic basement rocks overlain by Paleozoic sedimentary formations, including limestone and shale units. These mineral-rich formations contribute dissolved calcium and magnesium to the water supply, producing hard water characteristics common throughout the Mid-Atlantic region. Maryland statewide averages 118 PPM hardness, classifying the supply as hard by USGS standards.

Hard water in Clinton causes scale buildup in water heaters, reduced soap effectiveness, and mineral deposits on fixtures and appliances. Households may benefit from point-of-use softening or whole-house water softener systems, particularly for washing machines, dishwashers, and water heaters. Regular descaling and periodic maintenance are recommended to extend equipment lifespan. WSSC Water's annual Water Quality Report confirms that tap water meets EPA legal drinking water standards, and residents can access detailed data—including pH, disinfection byproducts, and lead and copper compliance—at wsscwater.com/waterquality.