What was found in Middlefield'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: 3590 µg/L — LAKEVIEW ESTATES - MIDDLEFIELD · 85 people · 2019 | 6/6 | 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: 3488.5 µg/L — LAKEVIEW ESTATES - MIDDLEFIELD · 85 people · 2019 | 6/6 | SYR4 |
| Fluoride | 1017 µg/L 25% of the EPA limit 4000 µg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 4/6 | 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: 280 µg/L — LAKEVIEW ESTATES - MIDDLEFIELD · 85 people · 2018 | 5/6 | 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: 156 µg/L — LAKEVIEW ESTATES - MIDDLEFIELD · 85 people · 2019 | 6/6 | 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 | 1/6 | SYR4 |
| Chloroform | 75.58 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 1/6 | 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 | 1/6 | 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 | 6/6 | SYR4 |
| Trichloroacetic Acid | 22.39 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 1/6 | SYR4 |
| Dichloroacetic Acid | 22.17 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 1/6 | SYR4 |
| Bromodichloromethane | 13.8 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 1/6 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.55196 pCi/L 37% of the EPA limit 15 pCi/L Highest in the city: OLD INDIAN TRAIL · 32 people · 2019 | 2/6 | SYR4 |
| Arsenic | 4.8 µg/L 48% of the EPA limit 10 µg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019
Highest in the city: 4.935 µg/L — SYLVAN RIDGE CONDOMINIUMS · 84 people · 2017 | 3/6 | SYR4 |
| Combined Uranium | 4.122 µg/L 14% of the EPA limit 30 µg/L Highest in the city: OLD INDIAN TRAIL · 32 people · 2019 | 2/6 | SYR4 |
| Dibromochloromethane | 2.32 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 1/6 | SYR4 |
| Monochloroacetic Acid | 2.205 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 1/6 | 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 | 3/6 | SYR4 |
| Antimony, Total | 1.1 µg/L 18% of the EPA limit 6 µg/L Highest in the city: SYLVAN RIDGE CONDOMINIUMS · 84 people · 2017 | 1/6 | SYR4 |
| Bromoform | 0.9750 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 1/6 | SYR4 |
| Dibromoacetic Acid | 0.9050 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 1/6 | SYR4 |
| Monobromoacetic Acid | 0.6850 µg/L No EPA limit set Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2019 | 1/6 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: MIDDLETOWN WATER DEPARTMENT · 41,019 people · 2026
Highest in the city: 0.0020 mg/L — SYLVAN RIDGE CONDOMINIUMS · 84 people · 2024 | 6/6 | 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 Middlefield
| Supplier | Population served |
|---|---|
| MIDDLETOWN WATER DEPARTMENT | 41,019 |
| LAKEVIEW ESTATES - MIDDLEFIELD | 85 |
| SYLVAN RIDGE CONDOMINIUMS | 84 |
| MIDDLEFIELD HOUSING AUTHORITY | 62 |
| BITTERSWEET RIDGE WATER ASSOCIATION | 40 |
| OLD INDIAN TRAIL | 32 |
Frequently asked questions about Middlefield tap water
Is Middlefield tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Middlefield. 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 Middlefield?
6 public water suppliers report drinking-water monitoring for Middlefield, Connecticut to the EPA. Each is listed above with its population served.
What contaminants are in Middlefield's water?
The contaminants EPA monitoring detected in Middlefield 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.