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Sanavia
Local water report · 22 miles from Arlington

What's in Manassas city, VA tap water?

Manassas city sits about 22 miles from our Arlington base and is served primarily by Manassas, City Of, which provides water to roughly 42,696 people. It draws from the Potomac River watershed. Most of the DC metro area drinks treated Potomac River water. Because that surface water is heavily chlorinated to stay safe across a long distribution system, the contaminants that most often exceed EWG's stricter health guidelines here are chlorination byproducts, alongside unregulated contaminants like PFAS and hexavalent chromium.

Primary water system (EPA)
Manassas, City Of
Serves about 42,696 people
Contaminants EWG most often flags above its health guidelines for the Potomac River watershed:
Total trihalomethanes (TTHMs)Cancer; fetal development
PFAS (forever chemicals)Immune & developmental harm
Lead (from older service lines)Neurological harm, especially in children

Larger areas have more than one water system. Enter your exact zip code below for your utility's own EPA record and EWG report.

PFAS detected · EPA UCMR5 (2023-2025)

3 PFAS “forever chemicals” found in Manassas city, VA's water

The EPA's most recent national testing round detected PFAS in Manassas, City Of'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.

PFAS compoundDetected (ppt)
PFBA23.3
PFPeA4.1
PFHxA3.8

Reverse osmosis is independently rated the most effective way to remove PFAS at the tap.

See the fix

Source: EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5), highest detected result per compound for Manassas, City Of. Levels vary by sampling point and date. Learn more about PFAS.

What's in your water?

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.

Try:

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 Manassas city

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 potomac river watershed contaminants above by up to 99%. Manassas city is about 22 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.

Manassas city water quality FAQ

Is Manassas city, VA tap water safe to drink?

Public water in Manassas city meets federal EPA legal limits. But "legal" is not the same as "clean": across the Potomac River watershed, independent testing routinely finds contaminants like Total trihalomethanes (TTHMs) and Haloacetic acids (HAA5) above EWG's stricter health guidelines. Enter your zip code above to see your exact utility's record.

What contaminants are common in Manassas city water?

For the Potomac River watershed, the contaminants that most often exceed health guidelines are Total trihalomethanes (TTHMs), Haloacetic acids (HAA5), Hexavalent chromium (chromium-6), PFAS (forever chemicals), Lead (from older service lines). Your specific levels depend on your utility, which you can look up by zip code above.

Does Sanavia install reverse osmosis systems in Manassas city?

Yes. Manassas city is roughly 22 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 Manassas city tap water come from?

Manassas city's primary public water system is Manassas, City Of, which serves roughly 42,696 people. It sits in the Potomac River watershed, 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 Manassas city tested for these contaminants?

No. Private wells are not covered by municipal testing, so the responsibility falls on the homeowner. If your Manassas city 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.

Understand what's in the water

The contaminants behind the Potomac River watershed

Each of these is a plain-English guide to a contaminant class common in Manassas city and the surrounding Potomac River watershed — what it is, the health context, and what actually removes it.

See all contaminant guides →

Detailed city water reports

For the largest DC-metro utilities we publish the full measured contaminant table.