What was found in South Kingstown'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 | 2760 µg/L 28% of the EPA limit 10000 µg/L Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2017
Highest in the city: 8650 µg/L — KINGSTON WATER DISTRICT · 3,968 people · 2019 | 6/7 | SYR4 |
| Nitrate-Nitrite | 3058 µg/L 31% of the EPA limit 10000 µg/L Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2019
Highest in the city: 8350 µg/L — KINGSTON WATER DISTRICT · 3,968 people · 2018 | 6/7 | SYR4 |
| Copper | 278 µg/L 21% of the EPA limit 1300 µg/L Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2018
Highest in the city: 1951.5 µg/L — SOUTH KINGSTOWN NURSING AND REHAB · 232 people · 2019 | 7/7 | SYR4 |
| Fluoride | 1673 µg/L 42% of the EPA limit 4000 µg/L Highest in the city: SOUTH KINGSTOWN NURSING AND REHAB · 232 people · 2018 | 3/7 | SYR4 |
| Lead | 8.39 µg/L 56% of the EPA limit 15 µg/L Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2018
Highest in the city: 352.4 µg/L — SOUTH KINGSTOWN NURSING AND REHAB · 232 people · 2019 | 6/7 | SYR4 |
| Combined Uranium | 161.562 µg/L 539% of the EPA limit, at the 95th percentile of samples — 30 µg/L Highest in the city: SOUTH KINGSTOWN NURSING AND REHAB · 232 people · 2019 | 1/7 | SYR4 |
| TTHM | 85.3 µg/L 107% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2019 | 4/7 | SYR4 |
| Chloroform | 63.9 µg/L No EPA limit set Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2019 | 3/7 | SYR4 |
| Barium | 12.35 µg/L 0.6% of the EPA limit 2000 µg/L Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2017
Highest in the city: 57.25 µg/L — SOUTH KINGSTOWN NURSING AND REHAB · 232 people · 2018 | 6/7 | SYR4 |
| Total Haloacetic Acids (HAA5) | 40.74 µg/L 68% of the EPA limit 60 µg/L Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2019 | 3/7 | SYR4 |
| Gross Alpha, Excl. Radon And U | 29.52 pCi/L 197% of the EPA limit, at the 95th percentile of samples — 15 pCi/L Highest in the city: SOUTH KINGSTOWN NURSING AND REHAB · 232 people · 2019 | 1/7 | SYR4 |
| Monochloroacetic Acid | 1.3 µg/L No EPA limit set Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2019
Highest in the city: 28.56 µg/L — SOUTH KINGSTOWN-MIDDLEBRIDGE · 694 people · 2019 | 2/7 | SYR4 |
| Trichloroacetic Acid | 27.15 µg/L No EPA limit set Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2019 | 3/7 | SYR4 |
| Nitrite | 20 µg/L 2% of the EPA limit 1000 µg/L Highest in the city: SOUTH KINGSTOWN-SOUTH SHORE · 6,170 people · 2017 | 1/7 | SYR4 |
| Bromodichloromethane | 19 µg/L No EPA limit set Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2019 | 3/7 | SYR4 |
| Dichloroacetic Acid | 13.3 µg/L No EPA limit set Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2019
Highest in the city: 15.45 µg/L — SOUTH KINGSTOWN-MIDDLEBRIDGE · 694 people · 2019 | 3/7 | SYR4 |
| Lithium | 11.5 µg/L No EPA limit set Highest in the city: UNIVERSITY OF RHODE ISLAND · 19,354 people · 2024 | 1/7 | UCMR-5 |
| Beryllium, Total | 6.5 µg/L 163% of the EPA limit, at the 95th percentile of samples — 4 µg/L Highest in the city: HILLSDALE HOUSING COOPERATIVE, INC. · 170 people · 2018 | 1/7 | SYR4 |
| Combined Radium (-226 And -228) | 6.195 pCi/L 124% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Highest in the city: HILLSDALE HOUSING COOPERATIVE, INC. · 170 people · 2018 | 3/7 | SYR4 |
| Gross Beta Particle Activity | 5.7 pCi/L No EPA limit set Highest in the city: HILLSDALE HOUSING COOPERATIVE, INC. · 170 people · 2015 | 2/7 | SYR4 |
| Bromoform | 5.205 µg/L No EPA limit set Highest in the city: UNIVERSITY OF RHODE ISLAND · 19,354 people · 2019 | 1/7 | SYR4 |
| Xylenes, Total | 5.0705 µg/L 0.1% of the EPA limit 10000 µg/L Highest in the city: UNIVERSITY OF RHODE ISLAND · 19,354 people · 2019 | 2/7 | SYR4 |
| Chromium | 3 µg/L 3% of the EPA limit 100 µg/L Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2017
Highest in the city: 5 µg/L — SOUTH KINGSTOWN-SOUTH SHORE · 6,170 people · 2017 | 5/7 | SYR4 |
| Dibromochloromethane | 4.7975 µg/L No EPA limit set Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2019 | 4/7 | SYR4 |
| Dibromoacetic Acid | 1.355 µg/L No EPA limit set Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2019
Highest in the city: 1.94 µg/L — UNIVERSITY OF RHODE ISLAND · 19,354 people · 2019 | 3/7 | SYR4 |
| Monobromoacetic Acid | 1.68 µg/L No EPA limit set Highest in the city: SOUTH KINGSTOWN-MIDDLEBRIDGE · 694 people · 2019 | 1/7 | SYR4 |
| Ethylbenzene | 0.8800 µg/L 0.1% of the EPA limit 700 µg/L Highest in the city: UNIVERSITY OF RHODE ISLAND · 19,354 people · 2019 | 1/7 | SYR4 |
| Atrazine | 0.1000 µg/L 3.3% of the EPA limit 3 µg/L Highest in the city: UNIVERSITY OF RHODE ISLAND · 19,354 people · 2019 | 1/7 | SYR4 |
| PFBS | 0.0368 µg/L No EPA limit set Highest in the city: KINGSTON WATER DISTRICT · 3,968 people · 2024 | 2/7 | UCMR-5 |
| PFOA | 0.0160 µg/L No EPA limit set Highest in the city: UNIVERSITY OF RHODE ISLAND · 19,354 people · 2024 | 3/7 | UCMR-5 |
| Pfpea | 0.0123 µg/L No EPA limit set Highest in the city: SOUTH KINGSTOWN-SOUTH SHORE · 6,170 people · 2023 | 3/7 | UCMR-5 |
| Pfhxa | 0.0112 µg/L No EPA limit set Highest in the city: KINGSTON WATER DISTRICT · 3,968 people · 2024 | 3/7 | UCMR-5 |
| PFNA | 0.0070 µg/L No EPA limit set Highest in the city: UNIVERSITY OF RHODE ISLAND · 19,354 people · 2024 | 1/7 | UCMR-5 |
| Lead | 0.0032 mg/L 21% of the EPA limit 0.0150 mg/L Main supplier: VEOLIA WATER WAKEFIELD RHODE ISLAND INC · 22,347 people · 2024
Highest in the city: 0.0064 mg/L — UNIVERSITY OF RHODE ISLAND · 19,354 people · 2025 | 7/7 | LCR |
| Pfhpa | 0.0060 µg/L No EPA limit set Highest in the city: UNIVERSITY OF RHODE ISLAND · 19,354 people · 2024 | 3/7 | UCMR-5 |
| PFOS | 0.0050 µg/L No EPA limit set Highest in the city: UNIVERSITY OF RHODE ISLAND · 19,354 people · 2024 | 1/7 | UCMR-5 |
| PFHXS | 0.0040 µg/L No EPA limit set Highest in the city: UNIVERSITY OF RHODE ISLAND · 19,354 people · 2024 | 1/7 | UCMR-5 |
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 South Kingstown
| Supplier | Population served |
|---|---|
| VEOLIA WATER WAKEFIELD RHODE ISLAND INC | 22,347 |
| UNIVERSITY OF RHODE ISLAND | 19,354 |
| SOUTH KINGSTOWN-SOUTH SHORE | 6,170 |
| KINGSTON WATER DISTRICT | 3,968 |
| SOUTH KINGSTOWN-MIDDLEBRIDGE | 694 |
| SOUTH KINGSTOWN NURSING AND REHAB | 232 |
| HILLSDALE HOUSING COOPERATIVE, INC. | 170 |
Frequently asked questions about South Kingstown tap water
Is South Kingstown tap water safe to drink?
EPA testing detected 37 contaminants in the water serving South Kingstown. 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 South Kingstown?
7 public water suppliers report drinking-water monitoring for South Kingstown, Rhode Island to the EPA. Each is listed above with its population served.
What contaminants are in South Kingstown's water?
The contaminants EPA monitoring detected in South Kingstown include Nitrate, Nitrate-Nitrite, Copper, Fluoride, 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.