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Water testing labs in Baltimore County, MD

6 state-accredited water testing labs in Baltimore County, MD.

6 certified labsUpdated October 2026Source: state lab accreditation records

Source: MDE list of certified drinking water laboratories, list dated Oct 1, 2026. Find a Water Test is independent and not affiliated with the Maryland Department of the Environment. Certification covers specific tests, so confirm the lab is certified for the ones you need: Verify a certification.

Cities in Baltimore County:Towson

6 certified labs near Baltimore County, MD

BC

Baltimore County Bureau of Utilities Engineering & Regulation Lab

4419 Bucks School House Road, Baltimore, MD

State-accredited labDrinking waterChemical testingPublic or utility lab

Public water system lab. Many don't accept private well samples, so call first.

(410) 887-5489Directions
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Mail-in labs that ship to Baltimore County, MD

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Well water guides

What to test forBad resultsBuying a home

Common questions

Where can I test well water near Baltimore County, MD?

The state-accredited labs above serve Baltimore County, MD. Many offer sample bottles you collect at home.

What should I test for near Baltimore County, MD?

Start with total coliform bacteria and nitrates, then ask your county health department about local concerns.