Water Treatment Germantown, MD: Testing, Filters & More

Hard water is particularly relevant for Germantown residents. Local water generally contains higher concentrations of calcium and magnesium. According to the 2025 Tap Water Analysis Report, the yearly average hardness level is 70 mg/L for the Patuxent Water Filtration Plant and 154 mg/L for the Potomac Water Filtration Plant.

These minerals are generally not considered a health concern, but they can create problems throughout your property. You may notice chalky scale around faucets and showerheads, spots on dishes, soap that does not lather well, or laundry that feels stiff. Hard water may also leave skin and hair feeling dry.

Scale can build up inside plumbing and water-using appliances, as well. Dishwashers, washing machines, coffee makers, and water heaters can all be affected by mineral deposits over time.

Microplastics are tiny plastic particles that have become an emerging water quality concern across the country. Research has identified microplastics in Potomac River sediments, making them a topic of interest for residents whose drinking water originates from this watershed.

Germantown residents concerned about emerging contaminants can talk with Atlantic Blue about advanced filtration options and whether lab testing is appropriate.

Arsenic occurs naturally in rocks and soil. It has shown up in drinking water across Maryland at levels that can pose health risks. It cannot be reliably identified by taste, smell, or appearance.

Germantown homeowners concerned about arsenic in well water need laboratory testing. If testing identifies arsenic, treatment options can be selected according to the concentration, type, and overall chemistry of the water.

Lead usually enters drinking water through plumbing rather than at the source. Older service lines, pipes, solder, faucets, and fixtures may contribute lead to water.

Because lead has no obvious taste, smell, or color, laboratory testing is the only reliable way to determine whether it is present in water. If lead is detected, Atlantic Blue can explain filtration options and help determine whether plumbing improvements should also be considered.

PFAS are a large group of synthetic chemicals that have been used in many industrial and consumer products. They can enter surface water and groundwater and have become a drinking water concern throughout Maryland and the rest of the country.

PFAS cannot be identified in water without specialized laboratory testing. Since early 2020, WSSC Water has regularly monitored for PFAS at the Potomac and Patuxent Water Filtration Plants.

However, even when levels remain in compliance with EPA regulations, that does not mean tap water is completely free of PFAS. Well water can also contain these chemicals. Regular well testing is necessary to properly monitor the system.

Atlantic Blue Water Services offers PFAS lab testing for well and municipal water in Germantown, MD. Depending on your test results and treatment goals, activated carbon or reverse osmosis may be recommended if PFAS are detected.

The Potomac and Patuxent watersheds cover large areas with many different land uses, including agricultural property. Rainfall and irrigation can carry fertilizers, pesticides, sediment, and other substances from the land into streams and rivers.

Public water supplies are treated and monitored before reaching customers, but residents who want additional control over the water at their tap may consider point-of-use or whole-home filtration. Private wells can also be affected by activities near the property. Testing is especially important if a well is located near agricultural land, septic systems, or other possible sources of groundwater contamination.

Other issues Germantown homeowners may want to test for include:

• Chlorine: Used to disinfect public water and sometimes responsible for a pool-like taste or odor.
• Disinfection byproducts: Compounds that can form when disinfectants react with naturally occurring organic material in the water.
• Bacteria: A particular concern for private wells, especially after flooding, well repairs, or nearby land disturbances.
• Nitrates: Can enter groundwater through fertilizers, septic systems, animal waste, and other sources.
• Chromium-6: A toxic, industrial contaminant that may enter groundwater via pollution and is best evaluated through laboratory testing.

Testing helps identify which concerns actually apply to your property instead of treating your water blindly.