What was found in Stevensville'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 | 1090 µg/L 11% of the EPA limit 10000 µg/L Main supplier: STEVENSVILLE · 9,155 people · 2019
Highest in the city: 3280 µg/L — RIVERSIDE COMPLEX · 60 people · 2019 | 2/8 | SYR4 |
| Fluoride | 266 µg/L 6.7% of the EPA limit 4000 µg/L Main supplier: STEVENSVILLE · 9,155 people · 2018
Highest in the city: 1039 µg/L — PROSPECT BAY · 913 people · 2018 | 5/8 | SYR4 |
| Barium | 173.4 µg/L 8.7% of the EPA limit 2000 µg/L Main supplier: STEVENSVILLE · 9,155 people · 2018 | 4/8 | SYR4 |
| Chloroform | 14.495 µg/L No EPA limit set Main supplier: STEVENSVILLE · 9,155 people · 2019
Highest in the city: 112.64 µg/L — PROSPECT BAY · 913 people · 2015 | 6/8 | SYR4 |
| TTHM | 11 µg/L 14% of the EPA limit 80 µg/L Main supplier: STEVENSVILLE · 9,155 people · 2019
Highest in the city: 71.604 µg/L — RIVERSIDE COMPLEX · 60 people · 2019 | 6/8 | SYR4 |
| Total Haloacetic Acids (HAA5) | 34.82 µg/L 58% of the EPA limit 60 µg/L Main supplier: STEVENSVILLE · 9,155 people · 2019
Highest in the city: 37.295 µg/L — RIVERSIDE COMPLEX · 60 people · 2019 | 6/8 | SYR4 |
| Bromodichloromethane | 2.33 µg/L No EPA limit set Main supplier: STEVENSVILLE · 9,155 people · 2018
Highest in the city: 21.943 µg/L — PROSPECT BAY · 913 people · 2015 | 6/8 | SYR4 |
| Trichloroacetic Acid | 1.488 µg/L No EPA limit set Main supplier: STEVENSVILLE · 9,155 people · 2014
Highest in the city: 21.14 µg/L — RIVERSIDE COMPLEX · 60 people · 2014 | 6/8 | SYR4 |
| Dichloroacetic Acid | 2.044 µg/L No EPA limit set Main supplier: STEVENSVILLE · 9,155 people · 2014
Highest in the city: 15.661 µg/L — RIVERSIDE COMPLEX · 60 people · 2014 | 6/8 | SYR4 |
| Gross Beta Particle Activity | 8.605 pCi/L No EPA limit set Main supplier: STEVENSVILLE · 9,155 people · 2018
Highest in the city: 14.1 pCi/L — PROSPECT BAY · 913 people · 2017 | 5/8 | SYR4 |
| Arsenic | 13.44 µg/L 134% of the EPA limit, at the 95th percentile of samples — 10 µg/L Highest in the city: TOWN OF SUDLERSVILLE · 497 people · 2019 | 2/8 | SYR4 |
| Lithium | 11 µg/L No EPA limit set Main supplier: STEVENSVILLE · 9,155 people · 2025 | 1/8 | UCMR-5 |
| Dibromoacetic Acid | 7.97 µg/L No EPA limit set Highest in the city: OYSTER COVE · 600 people · 2014 | 2/8 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.57 pCi/L 37% of the EPA limit 15 pCi/L Main supplier: STEVENSVILLE · 9,155 people · 2019 | 2/8 | SYR4 |
| Dibromochloromethane | 0.8600 µg/L No EPA limit set Main supplier: STEVENSVILLE · 9,155 people · 2018
Highest in the city: 4.4925 µg/L — RIVERSIDE COMPLEX · 60 people · 2014 | 6/8 | SYR4 |
| Combined Radium (-226 And -228) | 2.65 pCi/L 53% of the EPA limit 5 pCi/L Main supplier: STEVENSVILLE · 9,155 people · 2019 | 3/8 | SYR4 |
| Carbon Tetrachloride | 0.9000 µg/L 18% of the EPA limit 5 µg/L Highest in the city: PROSPECT BAY · 913 people · 2015 | 1/8 | SYR4 |
| Dichloromethane | 0.6000 µg/L 12% of the EPA limit 5 µg/L Main supplier: STEVENSVILLE · 9,155 people · 2019 | 1/8 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: STEVENSVILLE · 9,155 people · 2024 | 6/8 | 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 Stevensville
| Supplier | Population served |
|---|---|
| STEVENSVILLE | 9,155 |
| BAYSIDE-QUEENSLANDING | 1,030 |
| PROSPECT BAY | 913 |
| GRASONVILLE | 600 |
| OYSTER COVE | 600 |
| BRIDGE POINTE-KENT ISLAND VILLAGE | 600 |
| TOWN OF SUDLERSVILLE | 497 |
| RIVERSIDE COMPLEX | 60 |
Frequently asked questions about Stevensville tap water
Is Stevensville tap water safe to drink?
EPA testing detected 19 contaminants in the water serving Stevensville. 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 Stevensville?
8 public water suppliers report drinking-water monitoring for Stevensville, Maryland to the EPA. Each is listed above with its population served.
What contaminants are in Stevensville's water?
The contaminants EPA monitoring detected in Stevensville include Nitrate, Fluoride, Barium, Chloroform, 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.