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Tap water quality report

Manassas, City of

EPA monitoring tested this supplier for 108 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

108
contaminants tested
24
detected
42,696
people served
20
health-based violations
Virginia rankingsLead in VirginiaPFAS in Virginia
Water source
Surface water
Ownership
Local government

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

20
health-based violations
58
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2007-07-01 → 2007-09-30
MCL Health-based Resolved 2007-07-01 → 2007-09-30
MCL Health-based Resolved 2007-07-01 → 2007-09-30
MCL Health-based Resolved 2007-07-01 → 2007-09-30
MCL Health-based Resolved 2003-01-01 → 2003-03-31
MCL Health-based Resolved 2003-01-01 → 2003-03-31
MCL Health-based Resolved 2003-01-01 → 2003-03-31
MCL Health-based Resolved 2003-01-01 → 2003-03-31
MCL Health-based Resolved 2002-10-01 → 2002-12-31
MCL Health-based Resolved 2002-10-01 → 2002-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0038 µg/L 2/4 2024
Pfpea 0.0041 µg/L 2/4 2024
Pfba 0.0233 µg/L 1/4 2024

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
50.5 µg/L 63%
of the EPA limit 80 µg/L
worst single sample: 80.1 µg/L
128/128 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
42.27 µg/L 70%
of the EPA limit 60 µg/L
worst single sample: 54.4 µg/L
128/128 SYR4 2012–2019
Bromodichloromethane
8.415 µg/L
No EPA limit set
worst single sample: 9.87 µg/L
126/126 SYR4 2012–2019
Chloroform
41.275 µg/L
No EPA limit set
worst single sample: 68.7 µg/L
126/126 SYR4 2012–2019
Dichloroacetic Acid
21.485 µg/L
No EPA limit set
worst single sample: 24.9 µg/L
124/124 SYR4 2012–2019
Trichloroacetic Acid
18.17 µg/L
No EPA limit set
worst single sample: 20.6 µg/L
124/124 SYR4 2012–2019
Dibromochloromethane
1.36 µg/L
No EPA limit set
worst single sample: 1.65 µg/L
121/125 SYR4 2012–2019
Copper
157.7 µg/L 12%
of the EPA limit 1300 µg/L
worst single sample: 234 µg/L
62/69 SYR4 2012–2019
Lead
1.2 µg/L 8%
of the EPA limit 15 µg/L
worst single sample: 1.9 µg/L
21/69 SYR4 2012–2019
Monochloroacetic Acid
10.645 µg/L
No EPA limit set
worst single sample: 11.5 µg/L
20/124 SYR4 2012–2019
Lead
0.00047 mg/L 3.1%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2024
Fluoride
755.2 µg/L 19%
of the EPA limit 4000 µg/L
worst single sample: 772 µg/L
9/9 SYR4 2012–2019
Monobromoacetic Acid
7.278 µg/L
No EPA limit set
worst single sample: 7.51 µg/L
9/124 SYR4 2012–2019
Dibromoacetic Acid
1.2685 µg/L
No EPA limit set
worst single sample: 1.27 µg/L
4/124 SYR4 2012–2019
Atrazine
0.1900 µg/L 6.3%
of the EPA limit 3 µg/L
worst single sample: 0.2000 µg/L
3/9 SYR4 2012–2019
Barium
21.62 µg/L 1.1%
of the EPA limit 2000 µg/L
worst single sample: 22 µg/L
3/9 SYR4 2012–2019
Nitrate-Nitrite
621 µg/L 6.2%
of the EPA limit 10000 µg/L
worst single sample: 640 µg/L
2/7 SYR4 2012–2019
Cadmium
2.4 µg/L 48%
of the EPA limit 5 µg/L
 1/9 SYR4 2012–2019
Dalapon
1 µg/L 0.5%
of the EPA limit 200 µg/L
 1/12 SYR4 2012–2019
Gross Beta Particle Activity
2 pCi/L
No EPA limit set
 1/1 SYR4 2013
Simazine
0.1000 µg/L 2.5%
of the EPA limit 4 µg/L
 1/9 SYR4 2012–2019
84 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrateNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SMALL, JEFF
Phone
703-257-8382
Email
[email protected]

Frequently asked questions about Manassas, City of

Is Manassas, City of tap water safe to drink?

EPA monitoring detected 24 contaminants in Manassas, City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Manassas, City of's water?

EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Bromodichloromethane, Chloroform, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Manassas, City of serve?

Manassas, City of reports serving 42,696 people in Virginia, per its EPA record.

Has Manassas, City of had any water quality violations?

The EPA has 58 violations on file for Manassas, City of, of which 20 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.