Cambridge municipal water is sourced from deep wells in the Piney Point, Magothy, and Patapsco aquifers (confined and protected), with annual Consumer Confidence Reports showing full EPA compliance (no violations, low contaminants like arsenic ~0.666 ppb average, minimal disinfection byproducts). The protected aquifers reduce surface contamination risks. However, private wells—common in rural Cambridge, near farmland, or Dorchester outskirts—often draw from similar Piney Point/Aquia formations, leading to moderate-to-high hardness (varying GPG), iron/manganese (staining or brown water), sulfur odors (hydrogen sulfide from bacteria), and elevated arsenic in pockets (up to 33 ppb in Piney Point per Maryland Geological Survey studies; widespread in Dorchester Coastal Plain).

Common signs we see in Cambridge:

• White limescale buildup on faucets, showerheads, and water heaters
• Red/brown iron or manganese stains on plumbing, tubs, and laundry
• Rotten-egg smell in hot or well water (hydrogen sulfide)
• Cloudy or discolored water episodes
• Dry, itchy skin and dull hair after showers
• Spots on dishes despite dishwasher use

Without treatment, these reduce comfort, damage appliances, and increase costs. A free test provides your exact results—no assumptions.