Tap WaterIndex

← Pennsylvania

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 level at the main supplier for each below, with its EPA source and period.

4
water suppliers
16,491
people served
19
contaminants found
Pennsylvania rankings Lead in Pennsylvania PFAS in Pennsylvania

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
Nitrate
400 µg/L 4%
of the EPA limit 10000 µg/L
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2019
Highest in the city: 2010 µg/L — NORTH WARREN MUNI AUTHORITY · 1,749 people · 2019
4/4 SYR4
Barium
847.75 µg/L 42%
of the EPA limit 2000 µg/L
Highest in the city: VALLEY VIEW VILLAGE MHP · 55 people · 2018
3/4 SYR4
Copper
145.35 µg/L 11%
of the EPA limit 1300 µg/L
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2019
Highest in the city: 438.75 µg/L — NORTH WARREN MUNI AUTHORITY · 1,749 people · 2019
4/4 SYR4
Fluoride
298 µg/L 7.5%
of the EPA limit 4000 µg/L
Highest in the city: THE VALLEY MHC · 37 people · 2018
2/4 SYR4
Nitrite
60 µg/L 6%
of the EPA limit 1000 µg/L
Highest in the city: NORTH WARREN MUNI AUTHORITY · 1,749 people · 2019
2/4 SYR4
Selenium
36.4 µg/L 73%
of the EPA limit 50 µg/L
Highest in the city: THE VALLEY MHC · 37 people · 2018
2/4 SYR4
TTHM
33.335 µg/L 42%
of the EPA limit 80 µg/L
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2019
3/4 SYR4
Chloroform
13.52 µg/L
No EPA limit set
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2019
3/4 SYR4
Bromodichloromethane
9.38 µg/L
No EPA limit set
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2019
3/4 SYR4
Lead
3.7 µg/L 25%
of the EPA limit 15 µg/L
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2019
Highest in the city: 8.912 µg/L — NORTH WARREN MUNI AUTHORITY · 1,749 people · 2019
4/4 SYR4
Arsenic
8.75025 µg/L 88%
of the EPA limit 10 µg/L
Highest in the city: THE VALLEY MHC · 37 people · 2018
2/4 SYR4
Dibromochloromethane
8.48 µg/L
No EPA limit set
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2019
3/4 SYR4
Total Haloacetic Acids (HAA5)
5.2 µg/L 8.7%
of the EPA limit 60 µg/L
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2019
Highest in the city: 7.9845 µg/L — NORTH WARREN MUNI AUTHORITY · 1,749 people · 2019
2/4 SYR4
Chromium
5.2 µg/L 5.2%
of the EPA limit 100 µg/L
Highest in the city: VALLEY VIEW VILLAGE MHP · 55 people · 2018
2/4 SYR4
Dichloroacetic Acid
2.36 µg/L
No EPA limit set
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2019
Highest in the city: 5 µg/L — NORTH WARREN MUNI AUTHORITY · 1,749 people · 2019
2/4 SYR4
Bromoform
2.69 µg/L
No EPA limit set
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2019
Highest in the city: 4.63 µg/L — NORTH WARREN MUNI AUTHORITY · 1,749 people · 2019
3/4 SYR4
Dibromoacetic Acid
1.94 µg/L
No EPA limit set
Highest in the city: NORTH WARREN MUNI AUTHORITY · 1,749 people · 2019
1/4 SYR4
Trichloroacetic Acid
1.9 µg/L
No EPA limit set
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2019
2/4 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: PA AMERICAN WATER CO WARREN · 14,650 people · 2025
Highest in the city: 1 mg/L — THE VALLEY MHC · 37 people · 1996
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 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
PA AMERICAN WATER CO WARREN 14,650
NORTH WARREN MUNI AUTHORITY 1,749
VALLEY VIEW VILLAGE MHP 55
THE VALLEY MHC 37

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 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.