What was found in East Lyme'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 | 4180 µg/L 42% of the EPA limit 10000 µg/L | 1/1 | SYR4 |
| Nitrate-Nitrite | 4180 µg/L 42% of the EPA limit 10000 µg/L | 1/1 | SYR4 |
| Copper | 2070 µg/L 159% of the EPA limit, in the worst sample — 1300 µg/L | 1/1 | SYR4 |
| Fluoride | 1030 µg/L 26% of the EPA limit 4000 µg/L | 1/1 | SYR4 |
| Nitrite | 240 µg/L 24% of the EPA limit 1000 µg/L | 1/1 | SYR4 |
| Lead | 200 µg/L 1333% of the EPA limit, in the worst sample — 15 µg/L | 1/1 | SYR4 |
| Barium | 88 µg/L 4.4% of the EPA limit 2000 µg/L | 1/1 | SYR4 |
| Gross Beta Particle Activity | 39.4 pCi/L No EPA limit set | 1/1 | SYR4 |
| TTHM | 26.5 µg/L 33% of the EPA limit 80 µg/L | 1/1 | SYR4 |
| Dibromochloromethane | 15.6 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromoform | 11.6 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromodichloromethane | 8.9 µg/L No EPA limit set | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 7.02 pCi/L 47% of the EPA limit 15 pCi/L | 1/1 | SYR4 |
| Selenium | 7 µg/L 14% of the EPA limit 50 µg/L | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 7 µg/L 12% of the EPA limit 60 µg/L | 1/1 | SYR4 |
| 1,1-Dichloroethylene | 4.1 µg/L 59% of the EPA limit 7 µg/L | 1/1 | SYR4 |
| Chromium | 4 µg/L 4% of the EPA limit 100 µg/L | 1/1 | SYR4 |
| Chloroform | 3.8 µg/L No EPA limit set | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.4 pCi/L 28% of the EPA limit 5 pCi/L | 1/1 | SYR4 |
| Tetrachloroethylene | 0.8000 µg/L 16% of the EPA limit 5 µg/L | 1/1 | SYR4 |
| Heptachlor | 0.0880 µg/L 22% of the EPA limit 0.4000 µg/L | 1/1 | SYR4 |
| Heptachlor Epoxide | 0.0440 µg/L 22% of the EPA limit 0.2000 µg/L | 1/1 | SYR4 |
| PFOA | 0.0092 µg/L No EPA limit set | 1/1 | UCMR-5 |
| PFOS | 0.0072 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Pfpea | 0.0056 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Pfhxa | 0.0054 µg/L No EPA limit set | 1/1 | UCMR-5 |
| PFBS | 0.0048 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Pfhpa | 0.0030 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 1/1 | LCR |
Water suppliers serving East Lyme
| Supplier | Population served |
|---|---|
| EAST LYME WATER & SEWER COMMISSION | 15,245 |
Frequently asked questions about East Lyme tap water
Is East Lyme tap water safe to drink?
EPA testing detected 29 contaminants in the water serving East Lyme. 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 Lyme?
1 public water supplier report drinking-water monitoring for East Lyme, Connecticut to the EPA. Each is listed above with its population served.
What contaminants are in East Lyme's water?
The contaminants EPA monitoring detected in East Lyme include Nitrate, Nitrate-Nitrite, Copper, Fluoride, 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.