WC
Washington County Division of Environmental Management Laboratory
16232 Elliott Parkway, Williamsport, MD
Public water system lab. Many don't accept private well samples, so call first.
Water testing labs in Washington County, MD
2 state-accredited water testing labs in Washington County, MD.
2 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.
2 certified labs near Washington County, MD
CH
City of Hagerstown DW Laboratory
1 Clean Water Circle, Hagerstown, MD
Public water system lab. Many don't accept private well samples, so call first.
Mail-in labs that ship to Washington County, MD
How mail-in testing worksNT
National Testing Laboratories (WaterCheck)
Ships nationwide
Single tests from $75; well and city packages $165 to $440
Certified in Maryland
TS
Tap Score by SimpleLab
Ships nationwide
Single-contaminant kits from about $145; full well and city panels about $300 to $870
Testing service: sends your sample to a partner lab.
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Well water guides
Common questions
Where can I test well water near Washington County, MD?
The state-accredited labs above serve Washington County, MD. Many offer sample bottles you collect at home.
What should I test for near Washington County, MD?
Start with total coliform bacteria and nitrates, then ask your county health department about local concerns.