Is East Greenwich, RI Tap Water Safe? Quality & Contaminants

What was found in East Greenwich'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-Nitrite	4600 µg/L 46% of the EPA limit 10000 µg/L	1/1	SYR4
Nitrate	3590 µg/L 36% of the EPA limit 10000 µg/L	1/1	SYR4
Fluoride	740 µg/L 19% of the EPA limit 4000 µg/L	1/1	SYR4
TTHM	97 µg/L 121% of the EPA limit, in the worst sample — 80 µg/L	1/1	SYR4
Chloroform	89.6 µg/L No EPA limit set	1/1	SYR4
Total Haloacetic Acids (HAA5)	72 µg/L 120% of the EPA limit, in the worst sample — 60 µg/L	1/1	SYR4
Nitrite	70 µg/L 7% of the EPA limit 1000 µg/L	1/1	SYR4
Lead	64.6 µg/L 431% of the EPA limit, in the worst sample — 15 µg/L	1/1	SYR4
Bromoform	61 µg/L No EPA limit set	1/1	SYR4
Copper	47 µg/L 3.6% of the EPA limit 1300 µg/L	1/1	SYR4
Monochloroacetic Acid	46 µg/L No EPA limit set	1/1	SYR4
Dichloroacetic Acid	27 µg/L No EPA limit set	1/1	SYR4
Barium	17 µg/L 0.9% of the EPA limit 2000 µg/L	1/1	SYR4
Bromodichloromethane	9.9 µg/L No EPA limit set	1/1	SYR4
Chromium	7 µg/L 7% of the EPA limit 100 µg/L	1/1	SYR4
Trichloroacetic Acid	7 µg/L No EPA limit set	1/1	SYR4
Dibromochloromethane	4.4 µg/L No EPA limit set	1/1	SYR4
Monobromoacetic Acid	2.4 µg/L No EPA limit set	1/1	SYR4
Dibromoacetic Acid	1.5 µg/L No EPA limit set	1/1	SYR4
Combined Radium (-226 And -228)	1.2 pCi/L 24% of the EPA limit 5 pCi/L	1/1	SYR4
Cadmium	1 µg/L 20% of the EPA limit 5 µg/L	1/1	SYR4
Di(2-ethylhexyl) Phthalate	1 µg/L 17% of the EPA limit 6 µg/L	1/1	SYR4
6:2 Fts	0.0084 µg/L No EPA limit set	1/1	UCMR-5
Pfpea	0.0083 µg/L No EPA limit set	1/1	UCMR-5
PFOA	0.0075 µg/L No EPA limit set	1/1	UCMR-5
Pfhxa	0.0067 µg/L No EPA limit set	1/1	UCMR-5
PFBS	0.0036 µg/L No EPA limit set	1/1	UCMR-5
Pfhpa	0.0032 µg/L No EPA limit set	1/1	UCMR-5
Lead	0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L	1/1	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 East Greenwich

Supplier	Population served
KENT COUNTY WATER AUTHORITY	94,107

Frequently asked questions about East Greenwich tap water

Is East Greenwich tap water safe to drink?

EPA testing detected 29 contaminants in the water serving East Greenwich. 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 East Greenwich?

1 public water supplier report drinking-water monitoring for East Greenwich, Rhode Island to the EPA. Each is listed above with its population served.

What contaminants are in East Greenwich's water?

The contaminants EPA monitoring detected in East Greenwich include Nitrate-Nitrite, Nitrate, Fluoride, TTHM, Chloroform. 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.