What was found in Millersville'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-Nitrite | 3280 µg/L 33% of the EPA limit 10000 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019 | 1/7 | SYR4 |
| Nitrate | 3100 µg/L 31% of the EPA limit 10000 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019 | 4/7 | SYR4 |
| Fluoride | 806 µg/L 20% of the EPA limit 4000 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2017
Highest in the city: 1054 µg/L — ROSE HAVEN · 235 people · 2019 | 6/7 | SYR4 |
| Barium | 67 µg/L 3.4% of the EPA limit 2000 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019
Highest in the city: 73.4 µg/L — ROSE HAVEN · 235 people · 2019 | 7/7 | SYR4 |
| TTHM | 59.745 µg/L 75% of the EPA limit 80 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019 | 7/7 | SYR4 |
| Chloroform | 49.555 µg/L No EPA limit set Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2016 | 7/7 | SYR4 |
| Total Haloacetic Acids (HAA5) | 41.44 µg/L 69% of the EPA limit 60 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019 | 7/7 | SYR4 |
| Bromoform | 37.4 µg/L No EPA limit set Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2016 | 2/7 | SYR4 |
| Trichloroacetic Acid | 26.55 µg/L No EPA limit set Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2015 | 6/7 | SYR4 |
| Dichloroacetic Acid | 21.565 µg/L No EPA limit set Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2015 | 6/7 | SYR4 |
| Lithium | 13.1 µg/L No EPA limit set Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2025 | 3/7 | UCMR-5 |
| Gross Alpha, Excl. Radon And U | 12.465 pCi/L 83% of the EPA limit 15 pCi/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019 | 4/7 | SYR4 |
| Bromodichloromethane | 11.735 µg/L No EPA limit set Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2016 | 7/7 | SYR4 |
| Cadmium | 10.88 µg/L 218% of the EPA limit, at the 95th percentile of samples — 5 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019 | 1/7 | SYR4 |
| Combined Radium (-226 And -228) | 7.555 pCi/L 151% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019 | 4/7 | SYR4 |
| Chromium | 5 µg/L 5% of the EPA limit 100 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019
Highest in the city: 6.565 µg/L — ROSE HAVEN · 235 people · 2019 | 4/7 | SYR4 |
| Gross Beta Particle Activity | 4.8 pCi/L No EPA limit set Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019 | 1/7 | SYR4 |
| Xylenes, Total | 3.832 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: ROSE HAVEN · 235 people · 2019 | 1/7 | SYR4 |
| Arsenic | 3.2 µg/L 32% of the EPA limit 10 µg/L Highest in the city: GIBSON ISLAND · 275 people · 2019 | 2/7 | SYR4 |
| Dibromochloromethane | 2.33 µg/L No EPA limit set Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2016 | 6/7 | SYR4 |
| Monochloroacetic Acid | 2.24 µg/L No EPA limit set Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2015 | 2/7 | SYR4 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019 | 1/7 | SYR4 |
| Tetrachloroethylene | 1.995 µg/L 40% of the EPA limit 5 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2017 | 1/7 | SYR4 |
| Monobromoacetic Acid | 1.54 µg/L No EPA limit set Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2015 | 2/7 | SYR4 |
| Ethylbenzene | 1.198 µg/L 0.2% of the EPA limit 700 µg/L Highest in the city: ROSE HAVEN · 235 people · 2019 | 1/7 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.07 µg/L 18% of the EPA limit 6 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2019 | 1/7 | SYR4 |
| Antimony, Total | 1 µg/L 17% of the EPA limit 6 µg/L Highest in the city: GIBSON ISLAND · 275 people · 2019 | 1/7 | SYR4 |
| Toluene | 0.7200 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the city: ROSE HAVEN · 235 people · 2019 | 1/7 | SYR4 |
| Dibromoacetic Acid | 0.4900 µg/L No EPA limit set Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2015
Highest in the city: 0.6800 µg/L — BROAD CREEK · 26,033 people · 2015 | 2/7 | SYR4 |
| 1,1-Dichloroethylene | 0.4000 µg/L 5.7% of the EPA limit 7 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2017 | 1/7 | SYR4 |
| 1,1,1-Trichloroethane | 0.2000 µg/L 0.1% of the EPA limit 200 µg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2017 | 1/7 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: GLEN BURNIE-BROADNECK · 290,606 people · 2018
Highest in the city: 0.0056 mg/L — CROWNSVILLE HOSPITAL CENTER · 1,348 people · 2017 | 7/7 | 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 Millersville
| Supplier | Population served |
|---|---|
| GLEN BURNIE-BROADNECK | 290,606 |
| CROFTON-ODENTON | 62,986 |
| BROAD CREEK | 26,033 |
| HERALD HARBOR | 2,241 |
| CROWNSVILLE HOSPITAL CENTER | 1,348 |
| GIBSON ISLAND | 275 |
| ROSE HAVEN | 235 |
Frequently asked questions about Millersville tap water
Is Millersville tap water safe to drink?
EPA testing detected 32 contaminants in the water serving Millersville. 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 Millersville?
7 public water suppliers report drinking-water monitoring for Millersville, Maryland to the EPA. Each is listed above with its population served.
What contaminants are in Millersville's water?
The contaminants EPA monitoring detected in Millersville include Nitrate-Nitrite, Nitrate, 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.