Redland Water Hardness & Quality Report (2026)

Redland, Maryland, in Montgomery County, is served by Washington Suburban Sanitary Commission (WSSC Water), supplying water to over 1.8 million people across Montgomery and Prince George's Counties. The utility sources water primarily from the Potomac River, supplemented by the Patuxent River and groundwater from the Patapsco Aquifer and other Coastal Plain formations. Key treatment facilities include the Potomac Water Filtration Plant in Bethesda and the Patuxent Water Filtration Plant in Laurel, ensuring delivery to Redland's residential and commercial areas.

The supply originates in the Potomac River watershed, with geology dominated by Coastal Plain sediments including limestone, marl, and shell deposits from marine environments of the Tertiary Period. The Patapsco Aquifer, part of unconsolidated sands and gravels overlying crystalline bedrock, contributes groundwater. This carbonate-heavy geology — featuring calcite, aragonite, and magnesium calcite from Cretaceous and Tertiary formations — imparts a hard character through natural dissolution of calcium and magnesium-bearing minerals, resulting in a moderately mineralised to hard supply typical of the area.

Hard water promotes white scale buildup on fixtures, kettles, and heating elements, with noticeable effects on dishwashers, washing machines, and water heaters where efficiency declines over time. Soap lathering is reduced, causing scum in showers and spotty glassware. Regular vinegar descaling, scale-inhibiting filters, or a water softener is recommended to extend appliance life. WSSC Water maintains compliance with EPA standards; annual reports detail over 500,000 tests showing low PFAS levels below advisory limits, neutral pH around 7.5–8.5, and treatment via coagulation, filtration, chloramine disinfection, and fluoridation with no notable violations.