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Tap water quality report

Warren, AR

EPA monitoring detected 16 contaminants across the 4 water suppliers serving Warren. 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.

4
water suppliers
7,962
people served
16
contaminants found
Arkansas rankings Lead in Arkansas PFAS in Arkansas

What was found in Warren'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
900 µg/L 23%
of the EPA limit 4000 µg/L
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
1/4 SYR4
Copper
754.6 µg/L 58%
of the EPA limit 1300 µg/L
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
4/4 SYR4
TTHM
30.32 µg/L 38%
of the EPA limit 80 µg/L
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
Highest in the city: 65.45 µg/L — SW WARREN WATER ASSOCIATION · 765 people · 2019
4/4 SYR4
Dibromochloromethane
14.6 µg/L
No EPA limit set
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
Highest in the city: 29.825 µg/L — SW WARREN WATER ASSOCIATION · 765 people · 2019
4/4 SYR4
Bromodichloromethane
7.74 µg/L
No EPA limit set
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
Highest in the city: 16.75 µg/L — SW WARREN WATER ASSOCIATION · 765 people · 2019
4/4 SYR4
Bromoform
6.545 µg/L
No EPA limit set
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
Highest in the city: 16.03 µg/L — CORINTH VALLEY WATER SYSTEM · 33 people · 2019
4/4 SYR4
Total Haloacetic Acids (HAA5)
7.8 µg/L 13%
of the EPA limit 60 µg/L
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
Highest in the city: 11.29 µg/L — SW WARREN WATER ASSOCIATION · 765 people · 2019
4/4 SYR4
Lithium
10.8 µg/L
No EPA limit set
Main supplier: WARREN WATERWORKS · 6,001 people · 2023
Highest in the city: 11 µg/L — BRADLEY CO RURAL WATER ASSOCIATION · 1,163 people · 2025
2/4 UCMR-5
Dibromoacetic Acid
4.24 µg/L
No EPA limit set
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
Highest in the city: 6.41 µg/L — CORINTH VALLEY WATER SYSTEM · 33 people · 2019
4/4 SYR4
Chloroform
2.925 µg/L
No EPA limit set
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
Highest in the city: 6.38 µg/L — SW WARREN WATER ASSOCIATION · 765 people · 2019
4/4 SYR4
Lead
2.36 µg/L 16%
of the EPA limit 15 µg/L
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
Highest in the city: 4.635 µg/L — BRADLEY CO RURAL WATER ASSOCIATION · 1,163 people · 2018
4/4 SYR4
Dichloroacetic Acid
1.94 µg/L
No EPA limit set
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
Highest in the city: 3 µg/L — SW WARREN WATER ASSOCIATION · 765 people · 2019
4/4 SYR4
Trichloroacetic Acid
1.355 µg/L
No EPA limit set
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
Highest in the city: 1.81 µg/L — SW WARREN WATER ASSOCIATION · 765 people · 2019
4/4 SYR4
Chromium
1.6 µg/L 1.6%
of the EPA limit 100 µg/L
Main supplier: WARREN WATERWORKS · 6,001 people · 2018
1/4 SYR4
Monobromoacetic Acid
1 µg/L
No EPA limit set
Main supplier: WARREN WATERWORKS · 6,001 people · 2019
Highest in the city: 1.1 µg/L — SW WARREN WATER ASSOCIATION · 765 people · 2019
2/4 SYR4
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
Main supplier: WARREN WATERWORKS · 6,001 people · 2025
Highest in the city: 0.0320 mg/L — BRADLEY CO RURAL WATER ASSOCIATION · 1,163 people · 2008
3/4 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 Warren

SupplierPopulation served
WARREN WATERWORKS 6,001
BRADLEY CO RURAL WATER ASSOCIATION 1,163
SW WARREN WATER ASSOCIATION 765
CORINTH VALLEY WATER SYSTEM 33

Frequently asked questions about Warren tap water

Is Warren tap water safe to drink?

EPA testing detected 16 contaminants in the water serving Warren. 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 Warren?

4 public water suppliers report drinking-water monitoring for Warren, Arkansas to the EPA. Each is listed above with its population served.

What contaminants are in Warren's water?

The contaminants EPA monitoring detected in Warren include Fluoride, Copper, TTHM, Dibromochloromethane, Bromodichloromethane. 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.