What was found in Newport'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.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 1650 µg/L 17% of the EPA limit 10000 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Chlorite | 663.5 µg/L 66% of the EPA limit 1000 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Copper | 52.11 µg/L 4% of the EPA limit 1300 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019
Highest in the city: 215 µg/L — NAVAL STATION, NEWPORT · 7,870 people · 2019 | 3/3 | SYR4 |
| TTHM | 107.25 µg/L 134% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019
Highest in the city: 114.72 µg/L — NAVAL STATION, NEWPORT · 7,870 people · 2019 | 3/3 | SYR4 |
| Lead | 10.125 µg/L 68% of the EPA limit 15 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019
Highest in the city: 61.15 µg/L — NAVAL STATION, NEWPORT · 7,870 people · 2019 | 3/3 | SYR4 |
| Chloroform | 31.525 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2019
Highest in the city: 57.65 µg/L — UNITED STATES NAVY -FORT ADAMS · 320 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 20.475 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2019
Highest in the city: 40.6 µg/L — UNITED STATES NAVY -FORT ADAMS · 320 people · 2019 | 3/3 | SYR4 |
| Nitrite | 29 µg/L 2.9% of the EPA limit 1000 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 28.425 µg/L 47% of the EPA limit 60 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 20.125 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2019
Highest in the city: 26.15 µg/L — UNITED STATES NAVY -FORT ADAMS · 320 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 13 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 3/3 | SYR4 |
| Barium | 12 µg/L 0.6% of the EPA limit 2000 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Monochloroacetic Acid | 10.02 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 3/3 | SYR4 |
| Bromoform | 7.9 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 4.2 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 3.9 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 3/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 2.4 µg/L 40% of the EPA limit 6 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Arsenic | 2 µg/L 20% of the EPA limit 10 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Chromium | 1.9 µg/L 1.9% of the EPA limit 100 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Monobromoacetic Acid | 1.48 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 3/3 | SYR4 |
| Selenium | 1 µg/L 2% of the EPA limit 50 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Simazine | 0.3000 µg/L 7.5% of the EPA limit 4 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Benzo(A)Pyrene | 0.2000 µg/L 100% of the EPA limit 0.2000 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Atrazine | 0.1000 µg/L 3.3% of the EPA limit 3 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Lasso | 0.1000 µg/L 5% of the EPA limit 2 µg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2019 | 1/3 | SYR4 |
| Pfpea | 0.0061 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2024 | 2/3 | UCMR-5 |
| Pfba | 0.0059 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2024 | 2/3 | UCMR-5 |
| Pfhxa | 0.0051 µg/L No EPA limit set Main supplier: NEWPORT-CITY OF · 42,155 people · 2024 | 2/3 | UCMR-5 |
| Lead | 0.0044 mg/L 29% of the EPA limit 0.0150 mg/L Main supplier: NEWPORT-CITY OF · 42,155 people · 2027 | 3/3 | 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 Newport
| Supplier | Population served |
|---|---|
| NEWPORT-CITY OF | 42,155 |
| NAVAL STATION, NEWPORT | 7,870 |
| UNITED STATES NAVY -FORT ADAMS | 320 |
Frequently asked questions about Newport tap water
Is Newport tap water safe to drink?
EPA testing detected 29 contaminants in the water serving Newport. 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 Newport?
3 public water suppliers report drinking-water monitoring for Newport, Rhode Island to the EPA. Each is listed above with its population served.
What contaminants are in Newport's water?
The contaminants EPA monitoring detected in Newport include Nitrate, Chlorite, Copper, TTHM, Lead. 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.