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Tap water quality report

Centreville, MD

EPA monitoring detected 13 contaminants across the 1 water supplier serving Centreville. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

1
water supplier
3,322
people served
13
contaminants found
Maryland rankings Lead in Maryland PFAS in Maryland

What was found in Centreville's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
458.5 µg/L 11%
of the EPA limit 4000 µg/L
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2019
1/1 SYR4
Barium
130.7 µg/L 6.5%
of the EPA limit 2000 µg/L
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2019
1/1 SYR4
Nitrate
86 µg/L 0.9%
of the EPA limit 10000 µg/L
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2019
1/1 SYR4
TTHM
13.2965 µg/L 17%
of the EPA limit 80 µg/L
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2016
1/1 SYR4
Lithium
13 µg/L
No EPA limit set
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2025
1/1 UCMR-5
Gross Beta Particle Activity
10.31 pCi/L
No EPA limit set
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2017
1/1 SYR4
Total Haloacetic Acids (HAA5)
9.284 µg/L 15%
of the EPA limit 60 µg/L
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2016
1/1 SYR4
Arsenic
9.095 µg/L 91%
of the EPA limit 10 µg/L
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2019
1/1 SYR4
Chloroform
8.9345 µg/L
No EPA limit set
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2019
1/1 SYR4
Dichloroacetic Acid
6.06 µg/L
No EPA limit set
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2015
1/1 SYR4
Trichloroacetic Acid
3.66 µg/L
No EPA limit set
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2015
1/1 SYR4
Bromodichloromethane
2.39 µg/L
No EPA limit set
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2018
1/1 SYR4
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
Main supplier: TOWN OF CENTREVILLE · 3,322 people · 2024
1/1 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 95th percentile of the system's samples — 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 Centreville

SupplierPopulation served
TOWN OF CENTREVILLE 3,322

Frequently asked questions about Centreville tap water

Is Centreville tap water safe to drink?

EPA testing detected 13 contaminants in the water serving Centreville. 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 Centreville?

1 public water supplier report drinking-water monitoring for Centreville, Maryland to the EPA. Each is listed above with its population served.

What contaminants are in Centreville's water?

The contaminants EPA monitoring detected in Centreville include Fluoride, Barium, Nitrate, TTHM, Lithium. The full list, with the level at the main supplier 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.