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 | 2275.5 µg/L 23% of the EPA limit 10000 µg/L Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2018
Highest in the city: 6300 µg/L — GILBERTS MOBILE HOME PARK · 75 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 1945 µg/L 19% of the EPA limit 10000 µg/L Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2019 | 1/2 | SYR4 |
| Fluoride | 394 µg/L 9.9% of the EPA limit 4000 µg/L Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2018 | 1/2 | SYR4 |
| Barium | 79.64 µg/L 4% of the EPA limit 2000 µg/L Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2018
Highest in the city: 176.9 µg/L — GILBERTS MOBILE HOME PARK · 75 people · 2017 | 2/2 | SYR4 |
| TTHM | 30.5405 µg/L 38% of the EPA limit 80 µg/L Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 21.8085 µg/L 36% of the EPA limit 60 µg/L Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2019 | 2/2 | SYR4 |
| Chloroform | 14.685 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 12.604 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2015 | 1/2 | SYR4 |
| Trichloroacetic Acid | 9.932 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2015 | 1/2 | SYR4 |
| Gross Beta Particle Activity | 6.395 pCi/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2017 | 1/2 | SYR4 |
| Bromodichloromethane | 5.219 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.785 pCi/L 32% of the EPA limit 15 pCi/L Highest in the city: GILBERTS MOBILE HOME PARK · 75 people · 2014 | 1/2 | SYR4 |
| Dibromochloromethane | 3.915 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 2.25 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2015 | 1/2 | SYR4 |
| Trichloroethylene | 2.24 µg/L 45% of the EPA limit 5 µg/L Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2019 | 1/2 | SYR4 |
| Xylenes, Total | 1.8 µg/L 0% of the EPA limit 10000 µg/L Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.6 pCi/L 32% of the EPA limit 5 pCi/L Highest in the city: GILBERTS MOBILE HOME PARK · 75 people · 2014 | 1/2 | SYR4 |
| Dibromoacetic Acid | 1.47 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2015 | 2/2 | SYR4 |
| Bromoform | 0.8880 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2017 | 1/2 | SYR4 |
| Arsenic | 0.7950 µg/L 8% of the EPA limit 10 µg/L Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2018 | 1/2 | SYR4 |
| Ethylbenzene | 0.6000 µg/L 0.1% of the EPA limit 700 µg/L Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0092 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2025 | 1/2 | UCMR-5 |
| Pfhxa | 0.0062 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2025 | 1/2 | UCMR-5 |
| PFOS | 0.0061 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2025 | 1/2 | UCMR-5 |
| Pfba | 0.0051 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2025 | 1/2 | UCMR-5 |
| PFBS | 0.0049 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2025 | 1/2 | UCMR-5 |
| PFOA | 0.0048 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2025 | 1/2 | UCMR-5 |
| PFHXS | 0.0034 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2025 | 1/2 | UCMR-5 |
| Pfhpa | 0.0030 µg/L No EPA limit set Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: TOWN OF MIDDLETOWN · 4,288 people · 2014 | 2/2 | 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 |
|---|---|
| TOWN OF MIDDLETOWN | 4,288 |
| GILBERTS MOBILE HOME PARK | 75 |
Frequently asked questions about Middletown tap water
Is Middletown tap water safe to drink?
EPA testing detected 30 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?
2 public water suppliers report drinking-water monitoring for Middletown, Maryland 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, Barium, TTHM. 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.