Baltimore City serves 75% of the county.
Sourced from Liberty, Loch Raven, and Prettyboy reservoirs. Hard water, typically 8.8-10.8 gpg (150–185 mg/L).
WSSC Water serves the North Laurel area near I-95.
East of I-95, south of Patuxent Range Road. Drawn from the Potomac River, the water hardness is 7–7.6 gpg (120-130mg/L), or from the Patuxent River, which is softer, 3.5 – 3.8 gpg (60-65 mg/L).
Well Water Supply
Homes west of Route 32 are often on private wells — with varying hardness based on local bedrock geology.





