Is Cumberland, MD Tap Water Safe? Quality & Contaminants

What was found in Cumberland's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
Fluoride	653 µg/L 16% of the EPA limit 4000 µg/L	1/5	SYR4
Nitrate	634 µg/L 6.3% of the EPA limit 10000 µg/L	1/5	SYR4
Nitrate-Nitrite	634 µg/L 6.3% of the EPA limit 10000 µg/L	1/5	SYR4
TTHM	122.34 µg/L 153% of the EPA limit, in the worst sample — 80 µg/L	5/5	SYR4
Chloroform	110 µg/L No EPA limit set	5/5	SYR4
Total Haloacetic Acids (HAA5)	56.4 µg/L 94% of the EPA limit 60 µg/L	5/5	SYR4
Trichloroacetic Acid	41.1 µg/L No EPA limit set	5/5	SYR4
Barium	39.3 µg/L 2% of the EPA limit 2000 µg/L	1/5	SYR4
Dichloroacetic Acid	29.2 µg/L No EPA limit set	5/5	SYR4
Bromodichloromethane	16.57 µg/L No EPA limit set	5/5	SYR4
Di(2-ethylhexyl) Phthalate	4.58 µg/L 76% of the EPA limit 6 µg/L	1/5	SYR4
Gross Alpha, Excl. Radon And U	2.96 pCi/L 20% of the EPA limit 15 pCi/L	1/5	SYR4
Dibromochloromethane	1.84 µg/L No EPA limit set	3/5	SYR4
Dalapon	1.69 µg/L 0.8% of the EPA limit 200 µg/L	1/5	SYR4
Atrazine	0.4000 µg/L 13% of the EPA limit 3 µg/L	1/5	SYR4
Hexachlorocyclopentadiene	0.2200 µg/L 0.4% of the EPA limit 50 µg/L	1/5	SYR4
Benzo(A)Pyrene	0.1100 µg/L 55% of the EPA limit 0.2000 µg/L	1/5	SYR4
Ethylene Dibromide	0.0100 µg/L 20% of the EPA limit 0.0500 µg/L	1/5	SYR4
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L	1/5	LCR

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Cumberland

Supplier	Population served
CITY OF CUMBERLAND	27,039
EASTERN REGION ALLEGANY DISTRIB. SYSTEM	5,703
WESTERN REGION ALLEGANY DISTRIB. SYSTEM	4,955
SOUTHERN REGION ALLEGANY DISTRIB. SYSTEM	865
BROPHYTOWN DISTRIBUTION SYSTEM	47

Frequently asked questions about Cumberland tap water

Is Cumberland tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Cumberland. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Cumberland?

5 public water suppliers report drinking-water monitoring for Cumberland, Maryland to the EPA. Each is listed above with its population served.

What contaminants are in Cumberland's water?

The contaminants EPA monitoring detected in Cumberland include Fluoride, Nitrate, Nitrate-Nitrite, TTHM, Chloroform. The full list, with the highest level found and the data source, is in the table above.

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.