Is Greensburg, PA Tap Water Safe? Quality & Contaminants

What was found in Greensburg'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
Nitrate	6810 µg/L 68% of the EPA limit 10000 µg/L	4/5	SYR4
Fluoride	1110 µg/L 28% of the EPA limit 4000 µg/L	4/5	SYR4
Copper	973 µg/L 75% of the EPA limit 1300 µg/L	5/5	SYR4
TTHM	126 µg/L 158% of the EPA limit, in the worst sample — 80 µg/L	5/5	SYR4
Lead	120 µg/L 800% of the EPA limit, in the worst sample — 15 µg/L	5/5	SYR4
Chloroform	113 µg/L No EPA limit set	5/5	SYR4
Total Haloacetic Acids (HAA5)	84 µg/L 140% of the EPA limit, in the worst sample — 60 µg/L	5/5	SYR4
Barium	45 µg/L 2.3% of the EPA limit 2000 µg/L	4/5	SYR4
Bromodichloromethane	45 µg/L No EPA limit set	5/5	SYR4
Trichloroacetic Acid	45 µg/L No EPA limit set	5/5	SYR4
Dichloroacetic Acid	39 µg/L No EPA limit set	5/5	SYR4
Dibromochloromethane	19 µg/L No EPA limit set	5/5	SYR4
Monochloroacetic Acid	8.23 µg/L No EPA limit set	4/5	SYR4
Cyanide	6.3 µg/L 3.2% of the EPA limit 200 µg/L	1/5	SYR4
Bromoform	3 µg/L No EPA limit set	2/5	SYR4
Dibromoacetic Acid	2.77 µg/L No EPA limit set	1/5	SYR4
Mercury	0.4000 µg/L 20% of the EPA limit 2 µg/L	1/5	SYR4
Atrazine	0.3100 µg/L 10% of the EPA limit 3 µg/L	1/5	SYR4
Hexachlorocyclopentadiene	0.2000 µg/L 0.4% of the EPA limit 50 µg/L	1/5	SYR4
Lead	0.0186 mg/L 124% above the EPA limit of 0.0150 mg/L	5/5	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 Greensburg

Supplier	Population served
MAWC SWEENEY PLANT	143,000
MAWC YOUGH PLANT	133,000
WEST CNTY MUNI AUTH-MCKEESPORT	32,644
MAWC FURNACE RUN	3,100
PINE GARDEN APARTMENTS	40

Frequently asked questions about Greensburg tap water

Is Greensburg tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Greensburg. 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 Greensburg?

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

What contaminants are in Greensburg's water?

The contaminants EPA monitoring detected in Greensburg include Nitrate, Fluoride, Copper, TTHM, Lead. 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.