What was found in Exeter'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 | 479.25 µg/L 4.8% of the EPA limit 10000 µg/L Main supplier: SHADOW WOODS AT DEER BROOK · 300 people · 2019
Highest in the city: 5610 µg/L — LADD CENTER WATER SYSTEM · 129 people · 2019 | 5/8 | SYR4 |
| Nitrate-Nitrite | 496.7 µg/L 5% of the EPA limit 10000 µg/L Main supplier: SHADOW WOODS AT DEER BROOK · 300 people · 2017
Highest in the city: 4320 µg/L — LADD CENTER WATER SYSTEM · 129 people · 2017 | 5/8 | SYR4 |
| Fluoride | 289.45 µg/L 7.2% of the EPA limit 4000 µg/L Main supplier: SHADOW WOODS AT DEER BROOK · 300 people · 2017
Highest in the city: 2251.5 µg/L — KINGSTON CENTER AN0 · 77 people · 2019 | 4/8 | SYR4 |
| Copper | 186.2 µg/L 14% of the EPA limit 1300 µg/L Main supplier: SHADOW WOODS AT DEER BROOK · 300 people · 2019
Highest in the city: 1983.5 µg/L — SPLIT ROCK CORPORATION · 138 people · 2019 | 6/8 | SYR4 |
| Nitrite | 30 µg/L 3% of the EPA limit 1000 µg/L Highest in the city: KINGSTON CENTER AN0 · 77 people · 2019 | 1/8 | SYR4 |
| Combined Uranium | 24.82 µg/L 83% of the EPA limit 30 µg/L Main supplier: SHADOW WOODS AT DEER BROOK · 300 people · 2014 | 2/8 | SYR4 |
| Barium | 13.935 µg/L 0.7% of the EPA limit 2000 µg/L Main supplier: SHADOW WOODS AT DEER BROOK · 300 people · 2017
Highest in the city: 16.29 µg/L — LADD CENTER WATER SYSTEM · 129 people · 2017 | 4/8 | SYR4 |
| TTHM | 15.8 µg/L 20% of the EPA limit 80 µg/L Highest in the city: EXETER JOB CORPS CENTER · 300 people · 2019 | 2/8 | SYR4 |
| Lead | 1.89 µg/L 13% of the EPA limit 15 µg/L Main supplier: SHADOW WOODS AT DEER BROOK · 300 people · 2019
Highest in the city: 11.185 µg/L — LADD CENTER WATER SYSTEM · 129 people · 2019 | 6/8 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.713 µg/L 29% of the EPA limit 6 µg/L Main supplier: SHADOW WOODS AT DEER BROOK · 300 people · 2019
Highest in the city: 6.6 µg/L — KINGSTON CENTER AN0 · 77 people · 2019 | 2/8 | SYR4 |
| Gross Beta Particle Activity | 5.48 pCi/L No EPA limit set Highest in the city: KINGSTON CENTER AN0 · 77 people · 2013 | 2/8 | SYR4 |
| Dibromochloromethane | 5.4 µg/L No EPA limit set Highest in the city: EXETER JOB CORPS CENTER · 300 people · 2019 | 2/8 | SYR4 |
| Bromodichloromethane | 5.16 µg/L No EPA limit set Highest in the city: EXETER JOB CORPS CENTER · 300 people · 2019 | 2/8 | SYR4 |
| Chloroform | 4.62 µg/L No EPA limit set Highest in the city: EXETER JOB CORPS CENTER · 300 people · 2019 | 1/8 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.665 µg/L 6.1% of the EPA limit 60 µg/L Highest in the city: EXETER JOB CORPS CENTER · 300 people · 2019 | 2/8 | SYR4 |
| Bromoform | 3.42 µg/L No EPA limit set Highest in the city: EXETER JOB CORPS CENTER · 300 people · 2019 | 2/8 | SYR4 |
| Chromium | 2.96 µg/L 3% of the EPA limit 100 µg/L Main supplier: SHADOW WOODS AT DEER BROOK · 300 people · 2017 | 3/8 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.95 pCi/L 20% of the EPA limit 15 pCi/L Main supplier: SHADOW WOODS AT DEER BROOK · 300 people · 2014 | 2/8 | SYR4 |
| Dichloroacetic Acid | 2.385 µg/L No EPA limit set Highest in the city: EXETER JOB CORPS CENTER · 300 people · 2019 | 1/8 | SYR4 |
| Dibromoacetic Acid | 1.795 µg/L No EPA limit set Highest in the city: EXETER JOB CORPS CENTER · 300 people · 2019 | 1/8 | SYR4 |
| Beryllium, Total | 1 µg/L 25% of the EPA limit 4 µg/L Highest in the city: KINGSTON CENTER AN0 · 77 people · 2019 | 1/8 | SYR4 |
| Tetrachloroethylene | 0.7540 µg/L 15% of the EPA limit 5 µg/L Highest in the city: LADD CENTER WATER SYSTEM · 129 people · 2019 | 1/8 | SYR4 |
| Combined Radium (-226 And -228) | 0.7300 pCi/L 15% of the EPA limit 5 pCi/L Highest in the city: LADD CENTER WATER SYSTEM · 129 people · 2014 | 1/8 | SYR4 |
| Chlordane | 0.2870 µg/L 14% of the EPA limit 2 µg/L Highest in the city: LADD CENTER WATER SYSTEM · 129 people · 2019 | 1/8 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: SHADOW WOODS AT DEER BROOK · 300 people · 2022
Highest in the city: 0.1160 mg/L — KINGSTON CENTER AN0 · 77 people · 2023 | 8/8 | 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 Exeter
| Supplier | Population served |
|---|---|
| SHADOW WOODS AT DEER BROOK | 300 |
| EXETER JOB CORPS CENTER | 300 |
| SOUTH TRAIL COMMERCE | 175 |
| SPLIT ROCK CORPORATION | 138 |
| MOBILE VILLAGE, INC. | 130 |
| LADD CENTER WATER SYSTEM | 129 |
| KINGSTON CENTER AN0 | 77 |
| LIBERTY HILL | 48 |
Frequently asked questions about Exeter tap water
Is Exeter tap water safe to drink?
EPA testing detected 25 contaminants in the water serving Exeter. 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 Exeter?
8 public water suppliers report drinking-water monitoring for Exeter, Rhode Island to the EPA. Each is listed above with its population served.
What contaminants are in Exeter's water?
The contaminants EPA monitoring detected in Exeter include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Nitrite. 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.