What was found in Middletown'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 | 412.8 µg/L 4.1% of the EPA limit 10000 µg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019
Highest in the city: 4930 µg/L — PORTLAND WATER DEPARTMENT · 5,010 people · 2019 | 4/4 | SYR4 |
| Nitrate-Nitrite | 414.4 µg/L 4.1% of the EPA limit 10000 µg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019
Highest in the city: 4821.5 µg/L — PORTLAND WATER DEPARTMENT · 5,010 people · 2019 | 4/4 | SYR4 |
| Fluoride | 1017 µg/L 25% of the EPA limit 4000 µg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 3/4 | SYR4 |
| Copper | 174 µg/L 13% of the EPA limit 1300 µg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019
Highest in the city: 371 µg/L — PORTLAND WATER DEPARTMENT · 5,010 people · 2019 | 4/4 | SYR4 |
| Barium | 39.8 µg/L 2% of the EPA limit 2000 µg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019
Highest in the city: 339 µg/L — PORTLAND WATER DEPARTMENT · 5,010 people · 2018 | 4/4 | SYR4 |
| TTHM | 92.635 µg/L 116% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 4/4 | SYR4 |
| Chloroform | 75.58 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 44.36 µg/L 74% of the EPA limit 60 µg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 4/4 | SYR4 |
| Lead | 28.4 µg/L 189% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019
Highest in the city: 35.1 µg/L — CONNECTICUT VALLEY HOSPITAL · 2,928 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 22.39 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 3/4 | SYR4 |
| Dichloroacetic Acid | 22.17 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 3/4 | SYR4 |
| Bromodichloromethane | 13.8 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 4/4 | SYR4 |
| Nitrite | 12 µg/L 1.2% of the EPA limit 1000 µg/L Highest in the city: CONNECTICUT VALLEY HOSPITAL · 2,928 people · 2019 | 1/4 | SYR4 |
| Dibromoacetic Acid | 0.9050 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019
Highest in the city: 6.6 µg/L — BERLIN WATER CONTROL COMMISSION · 5,128 people · 2019 | 3/4 | SYR4 |
| Cyanide | 5 µg/L 2.5% of the EPA limit 200 µg/L Highest in the city: BERLIN WATER CONTROL COMMISSION · 5,128 people · 2019 | 1/4 | SYR4 |
| Arsenic | 4.8 µg/L 48% of the EPA limit 10 µg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 1/4 | SYR4 |
| Dibromochloromethane | 2.32 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019
Highest in the city: 3.6 µg/L — BERLIN WATER CONTROL COMMISSION · 5,128 people · 2019 | 4/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.19 pCi/L 21% of the EPA limit 15 pCi/L Highest in the city: BERLIN WATER CONTROL COMMISSION · 5,128 people · 2018 | 1/4 | SYR4 |
| Monochloroacetic Acid | 2.205 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 2/4 | SYR4 |
| Combined Radium (-226 And -228) | 2.13 pCi/L 43% of the EPA limit 5 pCi/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2018 | 1/4 | SYR4 |
| Trichloroethylene | 1.56 µg/L 31% of the EPA limit 5 µg/L Highest in the city: BERLIN WATER CONTROL COMMISSION · 5,128 people · 2019 | 1/4 | SYR4 |
| Bromoform | 0.9750 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019
Highest in the city: 1.5 µg/L — BERLIN WATER CONTROL COMMISSION · 5,128 people · 2019 | 2/4 | SYR4 |
| Tetrachloroethylene | 1.0795 µg/L 22% of the EPA limit 5 µg/L Highest in the city: BERLIN WATER CONTROL COMMISSION · 5,128 people · 2019 | 1/4 | SYR4 |
| Monobromoacetic Acid | 0.6850 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019
Highest in the city: 1.075 µg/L — CONNECTICUT VALLEY HOSPITAL · 2,928 people · 2019 | 2/4 | SYR4 |
| Antimony, Total | 0.4000 µg/L 6.7% of the EPA limit 6 µg/L Highest in the city: CONNECTICUT VALLEY HOSPITAL · 2,928 people · 2019 | 1/4 | SYR4 |
| PFHXS | 0.0038 µg/L No EPA limit set Highest in the city: BERLIN WATER CONTROL COMMISSION · 5,128 people · 2024 | 1/4 | UCMR-5 |
| Pfpea | 0.0036 µg/L No EPA limit set Highest in the city: PORTLAND WATER DEPARTMENT · 5,010 people · 2023 | 1/4 | UCMR-5 |
| Pfhxa | 0.0033 µg/L No EPA limit set Highest in the city: PORTLAND WATER DEPARTMENT · 5,010 people · 2023 | 1/4 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2026 | 4/4 | 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 Middletown
| Supplier | Population served |
|---|---|
| MIDDLETOWN WATER DEPARTMENT | 41,019 |
| BERLIN WATER CONTROL COMMISSION | 5,128 |
| PORTLAND WATER DEPARTMENT | 5,010 |
| CONNECTICUT VALLEY HOSPITAL | 2,928 |
Frequently asked questions about Middletown tap water
Is Middletown tap water safe to drink?
EPA testing detected 29 contaminants in the water serving Middletown. 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 Middletown?
4 public water suppliers report drinking-water monitoring for Middletown, Connecticut to the EPA. Each is listed above with its population served.
What contaminants are in Middletown's water?
The contaminants EPA monitoring detected in Middletown include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium. 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.