Is Berkeley County Pswd-Potomac River Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: Berkeley

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2009-09-01 → 2009-09-30
MCL	Health-based	Resolved	2009-09-01 → 2009-09-30
MCL	Health-based	Resolved	2009-09-01 → 2009-09-30
MCL	Health-based	Resolved	2009-09-01 → 2009-09-30
MCL	Health-based	Resolved	2007-12-01 → 2007-12-31
MCL	Health-based	Resolved	2007-12-01 → 2007-12-31
MCL	Health-based	Resolved	2007-12-01 → 2007-12-31
MCL	Health-based	Resolved	2007-12-01 → 2007-12-31
MCL	Health-based	Resolved	2005-07-01 → 2005-09-30
MCL	Health-based	Resolved	2005-07-01 → 2005-09-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Dichloroacetic Acid	26.963 µg/L No EPA limit set worst single sample: 31.2 µg/L	134/134	SYR4	2012–2019
Trichloroacetic Acid	28.6275 µg/L No EPA limit set worst single sample: 33.56 µg/L	134/134	SYR4	2012–2019
Bromodichloromethane	33.518 µg/L No EPA limit set worst single sample: 45.26 µg/L	133/134	SYR4	2012–2019
Monobromoacetic Acid	10.11 µg/L No EPA limit set worst single sample: 12.43 µg/L	133/134	SYR4	2012–2019
TTHM	102.224 µg/L 128% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 213.88 µg/L	133/134	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	62.652 µg/L 104% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 73.2 µg/L	133/134	SYR4	2012–2019
Chloroform	55.5435 µg/L No EPA limit set worst single sample: 153.6 µg/L	132/134	SYR4	2012–2019
Dibromochloromethane	22.09 µg/L No EPA limit set worst single sample: 31.4 µg/L	132/134	SYR4	2012–2019
Dibromoacetic Acid	5.638 µg/L No EPA limit set worst single sample: 6.64 µg/L	84/134	SYR4	2012–2019
Copper	90.95 µg/L 7% of the EPA limit 1300 µg/L worst single sample: 309 µg/L	52/60	SYR4	2014–2017
Bromoform	5.056 µg/L No EPA limit set worst single sample: 12.57 µg/L	42/134	SYR4	2012–2019
Nitrate	1895 µg/L 19% of the EPA limit 10000 µg/L worst single sample: 1990 µg/L	26/28	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	21/21	LCR	2024
Lead	16.75 µg/L 112% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 22 µg/L	16/60	SYR4	2014–2017
Barium	42.9 µg/L 2.1% of the EPA limit 2000 µg/L worst single sample: 45 µg/L	7/8	SYR4	2012–2019
Fluoride	1078 µg/L 27% of the EPA limit 4000 µg/L worst single sample: 1120 µg/L	7/8	SYR4	2012–2019
Gross Alpha, Excl. Radon And U	6.06455 pCi/L 40% of the EPA limit 15 pCi/L worst single sample: 6.38 pCi/L	2/2	SYR4	2013–2019
Antimony, Total	4 µg/L 67% of the EPA limit 6 µg/L	1/8	SYR4	2012–2019
Chromium	1.4 µg/L 1.4% of the EPA limit 100 µg/L	1/8	SYR4	2012–2019
Di(2-ethylhexyl) Phthalate	0.9980 µg/L 17% of the EPA limit 6 µg/L	1/5	SYR4	2013–2019
Monochloroacetic Acid	2 µg/L No EPA limit set	1/134	SYR4	2012–2019
Nitrate-Nitrite	1330 µg/L 13% of the EPA limit 10000 µg/L	1/1	SYR4	2019

55 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Frequently asked questions about Berkeley County Pswd-Potomac River

Is Berkeley County Pswd-Potomac River tap water safe to drink?

EPA monitoring detected 22 contaminants in Berkeley County Pswd-Potomac River'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 Berkeley County Pswd-Potomac River's water?

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

How many people does Berkeley County Pswd-Potomac River serve?

Berkeley County Pswd-Potomac River reports serving 69,372 people, per its EPA record.

Has Berkeley County Pswd-Potomac River had any water quality violations?

The EPA has 97 violations on file for Berkeley County Pswd-Potomac River, of which 48 are health-based (a contaminant limit or required treatment was breached) and 7 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.