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Tap water quality report

Winchester, City of

EPA monitoring tested this supplier for 105 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

105
contaminants tested
16
detected
28,248
people served
3
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.

3
health-based violations
27
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2006-04-01 → 2006-04-30
TT Health-based Resolved 2006-04-01 → 2006-04-30
TT Health-based Resolved 2006-04-01 → 2006-04-30
MR Monitoring Resolved 2021-07-01 → 2021-09-30
MR Monitoring Resolved 2021-07-01 → 2021-09-30
MR Monitoring Resolved 2021-07-01 → 2021-09-30
MR Monitoring Resolved 2021-07-01 → 2021-09-30
MR Monitoring Resolved 2006-01-01 → 2006-03-31
MR Monitoring Resolved 2006-01-01 → 2006-03-31
MR Monitoring Resolved 2002-07-01 → 2002-09-30

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
Bromodichloromethane
11.25 µg/L
No EPA limit set
worst single sample: 13 µg/L
136/136 SYR4 2012–2019
Chloroform
69.25 µg/L
No EPA limit set
worst single sample: 98 µg/L
136/136 SYR4 2012–2019
Dibromochloromethane
2.055 µg/L
No EPA limit set
worst single sample: 2.8 µg/L
130/136 SYR4 2012–2019
Dichloroacetic Acid
33 µg/L
No EPA limit set
worst single sample: 40 µg/L
128/128 SYR4 2012–2019
TTHM
81.65 µg/L 102%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 113 µg/L
128/128 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
62.3 µg/L 104%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 77 µg/L
128/128 SYR4 2012–2019
Trichloroacetic Acid
26 µg/L
No EPA limit set
worst single sample: 33 µg/L
128/128 SYR4 2012–2019
Copper
327 µg/L 25%
of the EPA limit 1300 µg/L
worst single sample: 470 µg/L
102/103 SYR4 2012–2019
Monochloroacetic Acid
4.17 µg/L
No EPA limit set
worst single sample: 6.4 µg/L
87/128 SYR4 2012–2019
Nitrate-Nitrite
2120 µg/L 21%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0027 mg/L 18%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Lead
64.9 µg/L 433%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 100 µg/L
10/103 SYR4 2012–2019
Barium
36.25 µg/L 1.8%
of the EPA limit 2000 µg/L
worst single sample: 38 µg/L
8/8 SYR4 2012–2019
Fluoride
816.5 µg/L 20%
of the EPA limit 4000 µg/L
worst single sample: 820 µg/L
8/8 SYR4 2012–2019
Gross Beta Particle Activity
4.09 pCi/L
No EPA limit set
worst single sample: 4.1 pCi/L
2/2 SYR4 2012–2018
Combined Radium (-226 And -228)
0.2000 pCi/L 4%
of the EPA limit 5 pCi/L
 1/1 SYR4 2018
89 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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
RIGGLEMAN, DONALD
Phone
540-667-1815
Email
[email protected]

Frequently asked questions about Winchester, City of

Is Winchester, City of tap water safe to drink?

EPA monitoring detected 16 contaminants in Winchester, 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 Winchester, City of's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.

How many people does Winchester, City of serve?

Winchester, City of reports serving 28,248 people in Virginia, per its EPA record.

Has Winchester, City of had any water quality violations?

The EPA has 27 violations on file for Winchester, City of, of which 3 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.