What was found in Hebron'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 | 480 µg/L 4.8% of the EPA limit 10000 µg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019
Highest in the city: 5651.95 µg/L — CTWC - LONDON PARK DIVISION · 221 people · 2019 | 8/8 | SYR4 |
| Nitrate-Nitrite | 418.5 µg/L 4.2% of the EPA limit 10000 µg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019
Highest in the city: 5649.65 µg/L — CTWC - LONDON PARK DIVISION · 221 people · 2019 | 8/8 | SYR4 |
| Copper | 381.55 µg/L 29% of the EPA limit 1300 µg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019
Highest in the city: 815 µg/L — ABBY WATER LLC · 100 people · 2019 | 8/8 | SYR4 |
| Fluoride | 272 µg/L 6.8% of the EPA limit 4000 µg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2017
Highest in the city: 719 µg/L — WELLSWOOD ESTATES FOUNDATION, INC. · 112 people · 2019 | 6/8 | SYR4 |
| Nitrite | 50.3 µg/L 5% of the EPA limit 1000 µg/L Highest in the city: CTWC - WELLSWOOD VILLAGE DIV · 60 people · 2019 | 2/8 | SYR4 |
| Barium | 17.85 µg/L 0.9% of the EPA limit 2000 µg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2017
Highest in the city: 49.8 µg/L — CTWC - LONDON PARK DIVISION · 221 people · 2018 | 6/8 | SYR4 |
| TTHM | 8.881 µg/L 11% of the EPA limit 80 µg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019
Highest in the city: 26.4 µg/L — CTWC - LONDON PARK DIVISION · 221 people · 2019 | 3/8 | SYR4 |
| Lead | 16.15 µg/L 108% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019
Highest in the city: 17 µg/L — CTWC - LONDON PARK DIVISION · 221 people · 2019 | 8/8 | SYR4 |
| Dibromochloromethane | 2.58 µg/L No EPA limit set Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019
Highest in the city: 10.09 µg/L — CTWC - LONDON PARK DIVISION · 221 people · 2019 | 3/8 | SYR4 |
| Bromoform | 1.02 µg/L No EPA limit set Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019
Highest in the city: 8.74 µg/L — CTWC - LONDON PARK DIVISION · 221 people · 2019 | 3/8 | SYR4 |
| Gross Alpha, Excl. Radon And U | 7.8115 pCi/L 52% of the EPA limit 15 pCi/L Highest in the city: HEBRON ARMS APARTMENTS · 39 people · 2019 | 4/8 | SYR4 |
| Gross Beta Particle Activity | 7.6295 pCi/L No EPA limit set Highest in the city: HEBRON ARMS APARTMENTS · 39 people · 2016 | 1/8 | SYR4 |
| Total Haloacetic Acids (HAA5) | 6.675 µg/L 11% of the EPA limit 60 µg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019 | 3/8 | SYR4 |
| Chloroform | 2.94 µg/L No EPA limit set Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019
Highest in the city: 5.415 µg/L — CTWC - AMSTON LAKE DIVISION · 910 people · 2019 | 3/8 | SYR4 |
| Bromodichloromethane | 2.7 µg/L No EPA limit set Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019
Highest in the city: 5.19 µg/L — CTWC - LONDON PARK DIVISION · 221 people · 2019 | 3/8 | SYR4 |
| Dichloroacetic Acid | 5.175 µg/L No EPA limit set Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019 | 3/8 | SYR4 |
| Combined Uranium | 4.5735 µg/L 15% of the EPA limit 30 µg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019 | 6/8 | SYR4 |
| Dibromoacetic Acid | 1.525 µg/L No EPA limit set Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019
Highest in the city: 3.24 µg/L — CTWC - LONDON PARK DIVISION · 221 people · 2019 | 3/8 | SYR4 |
| Combined Radium (-226 And -228) | 1.1 pCi/L 22% of the EPA limit 5 pCi/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019
Highest in the city: 2.85 pCi/L — HEBRON ARMS APARTMENTS · 39 people · 2019 | 3/8 | SYR4 |
| Toluene | 2.3 µg/L 0.2% of the EPA limit 1000 µg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2019 | 1/8 | SYR4 |
| Arsenic | 1 µg/L 10% of the EPA limit 10 µg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2017
Highest in the city: 1.965 µg/L — CTWC - WELLSWOOD VILLAGE DIV · 60 people · 2017 | 3/8 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.36 µg/L 23% of the EPA limit 6 µg/L Highest in the city: ABBY WATER LLC · 100 people · 2019 | 1/8 | SYR4 |
| Hexachlorocyclopentadiene | 0.0290 µg/L 0.1% of the EPA limit 50 µg/L Highest in the city: CTWC - LONDON PARK DIVISION · 221 people · 2019 | 1/8 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CTWC - HEBRON CENTER DIVISION · 1,927 people · 2026
Highest in the city: 0.0022 mg/L — ABBY WATER LLC · 100 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 Hebron
| Supplier | Population served |
|---|---|
| CTWC - HEBRON CENTER DIVISION | 1,927 |
| CTWC - AMSTON LAKE DIVISION | 910 |
| CTWC - LONDON PARK DIVISION | 221 |
| WELLSWOOD ESTATES FOUNDATION, INC. | 112 |
| ABBY WATER LLC | 100 |
| HILLSIDE CONDOMINIUMS | 96 |
| CTWC - WELLSWOOD VILLAGE DIV | 60 |
| HEBRON ARMS APARTMENTS | 39 |
Frequently asked questions about Hebron tap water
Is Hebron tap water safe to drink?
EPA testing detected 24 contaminants in the water serving Hebron. 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 Hebron?
8 public water suppliers report drinking-water monitoring for Hebron, Connecticut to the EPA. Each is listed above with its population served.
What contaminants are in Hebron's water?
The contaminants EPA monitoring detected in Hebron include Nitrate, Nitrate-Nitrite, Copper, Fluoride, 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.