What's in Jefferson County, WV tap water?
Jefferson County sits about 50 miles from our Arlington base and is served primarily by Jefferson County (Bunker Hill area), which provides water to roughly 34,586 people. It draws from the Shenandoah Valley & Blue Ridge karst. The Shenandoah Valley and Blue Ridge run on limestone karst springs and municipal and private wells. That geology, plus valley agriculture, tends to raise nitrate and naturally occurring radionuclides, alongside chlorination byproducts wherever the supply is disinfected.
Larger areas have more than one water system. Enter your exact zip code below for your utility's own EPA record and EWG report.
4 PFAS “forever chemicals” found in Jefferson County, WV's water
The EPA's most recent national testing round detected PFAS in Berkeley Co P S W D-Bunker Hill's supply. The EPA's 2024 legal limit for PFOA and PFOS is just 4 ppt, and its own health goal is zero, no level is considered safe.
Reverse osmosis is independently rated the most effective way to remove PFAS at the tap.
See the fixSource: EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5), highest detected result per compound for Berkeley Co P S W D-Bunker Hill. Levels vary by sampling point and date. Learn more about PFAS.
Your tap water is legal. That doesn't make it clean.
Enter any U.S. zip code to see your water utility and the contaminants in its supply. For DC-metro utilities we show levels measured against the stricter EWG health guideline, not just the legal limit.
DC-metro levels from the EWG Tap Water Database & utility Consumer Confidence Reports; nationwide results from EPA SDWIS records. Utilities shown are in legal EPA compliance. “× over” compares the detected level to EWG's stricter health-based guideline, not the federal legal limit.
Getting cleaner water in Jefferson County
Your city treats the water for everyone; a reverse osmosis system handles the last few feet, at your own sink, where it matters. The Sanavia Hydra is NSF-certified to cut the shenandoah valley & blue ridge karst contaminants above by up to 99%. Jefferson County is about 50 miles from our Arlington base, so it is inside our free in-home installation area, and every system ships nationwide with local installer help wherever you are.
Jefferson County water quality FAQ
Is Jefferson County, WV tap water safe to drink?
Public water in Jefferson County meets federal EPA legal limits. But "legal" is not the same as "clean": across the Shenandoah Valley & Blue Ridge karst, independent testing routinely finds contaminants like Nitrates (agricultural runoff) and Radium & radionuclides (naturally occurring) above EWG's stricter health guidelines. Enter your zip code above to see your exact utility's record.
What contaminants are common in Jefferson County water?
For the Shenandoah Valley & Blue Ridge karst, the contaminants that most often exceed health guidelines are Nitrates (agricultural runoff), Radium & radionuclides (naturally occurring), Total trihalomethanes (TTHMs), Arsenic (naturally occurring, trace), PFAS (forever chemicals). Your specific levels depend on your utility, which you can look up by zip code above.
Does Sanavia install reverse osmosis systems in Jefferson County?
Yes. Jefferson County is roughly 50 miles from our Arlington base and inside our service area. A Sanavia Hydra reverse osmosis system installs under your sink and is NSF-certified to reduce every contaminant class above, and we offer a free in-home water test.
Where does Jefferson County tap water come from?
Jefferson County's primary public water system is Jefferson County (Bunker Hill area), which serves roughly 34,586 people. It sits in the Shenandoah Valley & Blue Ridge karst, so its water shares that region's contaminant profile. Larger areas may have more than one utility, so enter your exact zip code above for your own system's EPA record.
Is well water in Jefferson County tested for these contaminants?
No. Private wells are not covered by municipal testing, so the responsibility falls on the homeowner. If your Jefferson County home is on a well, nitrate and naturally occurring contaminants are worth testing for specifically, and a reverse osmosis system reduces them at the tap. We offer a free in-home water test either way.
The contaminants behind the Shenandoah Valley & Blue Ridge karst
Each of these is a plain-English guide to a contaminant class common in Jefferson County and the surrounding Shenandoah Valley & Blue Ridge karst — what it is, the health context, and what actually removes it.
Detailed city water reports
For the largest DC-metro utilities we publish the full measured contaminant table.