Allegany County, Maryland: drinking water report. Allegany County sits in Maryland's western panhandle, where Cumberland serves as the county seat and…
Allegany County sits in Maryland's western panhandle, where Cumberland serves as the county seat and largest city. The region relies on a mix of surface water from the Potomac River and its tributaries, along with groundwater sources serving smaller communities like Frostburg, Westernport, and Lonaconing. The mountainous terrain and legacy coal mining operations create distinct water quality challenges compared to Maryland's more urbanized eastern counties.
Western Maryland communities face contamination risks that differ markedly from the Chesapeake Bay watershed. The Potomac River basin in this region carries agricultural runoff from upstream sources, while abandoned coal mines contribute acid mine drainage and elevated metal concentrations to tributary streams. Lead service lines remain common in Cumberland's older housing stock, particularly in neighborhoods built before 1950. The city's distribution system, like many in Appalachian communities, operates on infrastructure that dates back decades and requires ongoing attention to corrosion control protocols.
Maryland's participation in EPA monitoring programs has revealed that public water systems serving Allegany County typically detect PFAS compounds at levels consistent with other mid-Atlantic regions near former industrial sites and military installations. The county's location along Interstate 68 means legacy contamination from historical manufacturing and transportation corridors persists in some areas. Private well users, who account for a meaningful portion of the county's 70,000 residents, face additional concerns from naturally occurring radionuclides in bedrock aquifers and potential impacts from aging septic systems in rural hollows.
Testing data from Maryland's Department of the Environment shows that small community water systems in former mining towns occasionally exceed maximum contaminant levels for manganese and aluminum, though utilities typically respond with treatment adjustments. The county's topography means that source water protection is complicated by runoff patterns that concentrate contaminants in valley bottoms where many communities are located. Residents on private wells should be particularly aware that standard real estate testing often misses PFAS, radionuclides, and the full range of metals that occur in western Maryland's geology.
Anyone on public water should request recent testing results from their utility, while private well owners need regular testing beyond basic bacteria screens. Start by testing for lead, particularly if your home was built before 1986, and consider comprehensive screening for metals, PFAS, and radionuclides if you rely on groundwater. Check your water for current contamination data in your area, review our water filter guide for treatment options matched to specific contaminants, download the detailed report for full testing recommendations, or visit the Maryland state page for statewide context on water quality patterns.