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Tap water quality report

Warren, PA

EPA monitoring detected 19 contaminants across the 4 water suppliers serving Warren. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

4
water suppliers
16,491
people served
19
contaminants found

What was found in Warren's water

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

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
2010 µg/L 20%
of the EPA limit 10000 µg/L
4/4 SYR4
Barium
850 µg/L 43%
of the EPA limit 2000 µg/L
3/4 SYR4
Copper
700 µg/L 54%
of the EPA limit 1300 µg/L
4/4 SYR4
Fluoride
298 µg/L 7.5%
of the EPA limit 4000 µg/L
2/4 SYR4
Nitrite
60 µg/L 6%
of the EPA limit 1000 µg/L
2/4 SYR4
Lead
46 µg/L 307%
of the EPA limit, in the worst sample — 15 µg/L
4/4 SYR4
TTHM
39 µg/L 49%
of the EPA limit 80 µg/L
3/4 SYR4
Selenium
36.4 µg/L 73%
of the EPA limit 50 µg/L
2/4 SYR4
Chloroform
19.6 µg/L
No EPA limit set
3/4 SYR4
Bromodichloromethane
11.1 µg/L
No EPA limit set
3/4 SYR4
Arsenic
9.2 µg/L 92%
of the EPA limit 10 µg/L
2/4 SYR4
Dibromochloromethane
8.9 µg/L
No EPA limit set
3/4 SYR4
Total Haloacetic Acids (HAA5)
8.31 µg/L 14%
of the EPA limit 60 µg/L
2/4 SYR4
Chromium
5.2 µg/L 5.2%
of the EPA limit 100 µg/L
2/4 SYR4
Dichloroacetic Acid
5 µg/L
No EPA limit set
2/4 SYR4
Bromoform
4.7 µg/L
No EPA limit set
3/4 SYR4
Dibromoacetic Acid
2 µg/L
No EPA limit set
1/4 SYR4
Trichloroacetic Acid
1.9 µg/L
No EPA limit set
2/4 SYR4
Lead
0.8002 mg/L 5335%
above the EPA limit of 0.0150 mg/L
4/4 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 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 Warren

Frequently asked questions about Warren tap water

Is Warren tap water safe to drink?

EPA testing detected 19 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, Pennsylvania 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 Nitrate, Barium, Copper, Fluoride, Nitrite. 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.