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Tap water quality report

Providence, RI

EPA monitoring detected 8 contaminants across the 1 water supplier serving Providence. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
333,142
people served
8
contaminants found
Rhode Island rankings Lead in Rhode Island PFAS in Rhode Island

What was found in Providence'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
Fluoride
250 µg/L 6.3%
of the EPA limit 4000 µg/L
 1/1 SYR4
TTHM
89 µg/L 111%
of the EPA limit, in the worst sample — 80 µg/L
 1/1 SYR4
Nitrate
60 µg/L 0.6%
of the EPA limit 10000 µg/L
 1/1 SYR4
Total Haloacetic Acids (HAA5)
34 µg/L 57%
of the EPA limit 60 µg/L
 1/1 SYR4
Nitrite
20 µg/L 2%
of the EPA limit 1000 µg/L
 1/1 SYR4
Barium
10 µg/L 0.5%
of the EPA limit 2000 µg/L
 1/1 SYR4
Di(2-ethylhexyl) Phthalate
1 µg/L 17%
of the EPA limit 6 µg/L
 1/1 SYR4
Lead
0.00020 mg/L 1.3%
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 Providence

SupplierPopulation served
PROVIDENCE-CITY OF 333,142

Frequently asked questions about Providence tap water

Is Providence tap water safe to drink?

EPA testing detected 8 contaminants in the water serving Providence. 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 Providence?

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

What contaminants are in Providence's water?

The contaminants EPA monitoring detected in Providence include Fluoride, TTHM, Nitrate, Total Haloacetic Acids (HAA5), 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.