Is Greencastle, PA Tap Water Safe? Quality & Contaminants

What was found in Greencastle'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	8830 µg/L 88% of the EPA limit 10000 µg/L	7/7	SYR4
Xylenes, Total	2300 µg/L 23% of the EPA limit 10000 µg/L	1/7	SYR4
Fluoride	1200 µg/L 30% of the EPA limit 4000 µg/L	7/7	SYR4
Nitrite	990 µg/L 99% of the EPA limit 1000 µg/L	4/7	SYR4
Copper	709 µg/L 55% of the EPA limit 1300 µg/L	7/7	SYR4
Nitrate-Nitrite	480 µg/L 4.8% of the EPA limit 10000 µg/L	1/7	SYR4
Barium	70 µg/L 3.5% of the EPA limit 2000 µg/L	4/7	SYR4
TTHM	43.2 µg/L 54% of the EPA limit 80 µg/L	7/7	SYR4
Total Haloacetic Acids (HAA5)	38.5 µg/L 64% of the EPA limit 60 µg/L	5/7	SYR4
Chloroform	33 µg/L No EPA limit set	7/7	SYR4
Dichloroacetic Acid	28.8 µg/L No EPA limit set	5/7	SYR4
Monochloroacetic Acid	27.4 µg/L No EPA limit set	2/7	SYR4
Di(2-ethylhexyl) Phthalate	22.7 µg/L 378% of the EPA limit, in the worst sample — 6 µg/L	2/7	SYR4
Lead	13 µg/L 87% of the EPA limit 15 µg/L	6/7	SYR4
Chromium	11 µg/L 11% of the EPA limit 100 µg/L	4/7	SYR4
Bromodichloromethane	10 µg/L No EPA limit set	6/7	SYR4
Trichloroacetic Acid	8.03 µg/L No EPA limit set	3/7	SYR4
Dibromochloromethane	5 µg/L No EPA limit set	6/7	SYR4
Monobromoacetic Acid	4.92 µg/L No EPA limit set	2/7	SYR4
Dibromoacetic Acid	2.2 µg/L No EPA limit set	2/7	SYR4
Bromoform	0.9800 µg/L No EPA limit set	3/7	SYR4
Atrazine	0.8800 µg/L 29% of the EPA limit 3 µg/L	1/7	SYR4
Lead	0.0635 mg/L 423% above the EPA limit of 0.0150 mg/L	6/7	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 Greencastle

Supplier	Population served
GREENCASTLE AREA WATER AUTH	5,500
ANTRIM TOWNSHIP MUNICIPAL AUTH	1,149
SHANGRI LA MHP	86
GREEN GROVE TRAILER CT	75
STATE LINE MHP	65
HERITAGE HILLS RETIREMENT COMM	57
SUNNY SPOT APARTMENTS	27

Frequently asked questions about Greencastle tap water

Is Greencastle tap water safe to drink?

EPA testing detected 23 contaminants in the water serving Greencastle. 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 Greencastle?

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

What contaminants are in Greencastle's water?

The contaminants EPA monitoring detected in Greencastle include Nitrate, Xylenes, Total, Fluoride, Nitrite, Copper. 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.