What was found in St Michaels'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 |
|---|---|---|---|
| Fluoride | 504 µg/L 13% of the EPA limit 4000 µg/L Main supplier: TOWN OF ST. MICHAELS · 2,650 people · 2019 | 2/2 | SYR4 |
| Arsenic | 26.55 µg/L 266% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: TOWN OF ST. MICHAELS · 2,650 people · 2019 | 2/2 | SYR4 |
| TTHM | 10.876 µg/L 14% of the EPA limit 80 µg/L Main supplier: TOWN OF ST. MICHAELS · 2,650 people · 2019
Highest in the city: 16.084 µg/L — MARTINGHAM UTILITIES COOPERATIVE · 675 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 9 pCi/L No EPA limit set Main supplier: TOWN OF ST. MICHAELS · 2,650 people · 2016
Highest in the city: 12.115 pCi/L — MARTINGHAM UTILITIES COOPERATIVE · 675 people · 2013 | 2/2 | SYR4 |
| Selenium | 10.805 µg/L 22% of the EPA limit 50 µg/L Highest in the city: MARTINGHAM UTILITIES COOPERATIVE · 675 people · 2017 | 1/2 | SYR4 |
| Chromium | 8 µg/L 8% of the EPA limit 100 µg/L Main supplier: TOWN OF ST. MICHAELS · 2,650 people · 2019 | 1/2 | SYR4 |
| Bromoform | 6.86 µg/L No EPA limit set Main supplier: TOWN OF ST. MICHAELS · 2,650 people · 2014
Highest in the city: 7.644 µg/L — MARTINGHAM UTILITIES COOPERATIVE · 675 people · 2017 | 2/2 | SYR4 |
| Dibromochloromethane | 2.42 µg/L No EPA limit set Main supplier: TOWN OF ST. MICHAELS · 2,650 people · 2014
Highest in the city: 5.822 µg/L — MARTINGHAM UTILITIES COOPERATIVE · 675 people · 2017 | 2/2 | SYR4 |
| Bromodichloromethane | 0.8900 µg/L No EPA limit set Main supplier: TOWN OF ST. MICHAELS · 2,650 people · 2014
Highest in the city: 2.502 µg/L — MARTINGHAM UTILITIES COOPERATIVE · 675 people · 2017 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.852 µg/L 3.1% of the EPA limit 60 µg/L Main supplier: TOWN OF ST. MICHAELS · 2,650 people · 2019
Highest in the city: 2.334 µg/L — MARTINGHAM UTILITIES COOPERATIVE · 675 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 2.15 µg/L No EPA limit set Highest in the city: MARTINGHAM UTILITIES COOPERATIVE · 675 people · 2015 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.9000 pCi/L 18% of the EPA limit 5 pCi/L Highest in the city: MARTINGHAM UTILITIES COOPERATIVE · 675 people · 2019 | 1/2 | SYR4 |
| Chloroform | 0.8000 µg/L No EPA limit set Highest in the city: MARTINGHAM UTILITIES COOPERATIVE · 675 people · 2017 | 1/2 | SYR4 |
| Lead | 0.0018 mg/L 12% of the EPA limit 0.0150 mg/L Main supplier: TOWN OF ST. MICHAELS · 2,650 people · 2025 | 2/2 | LCR |
Water suppliers serving St Michaels
| Supplier | Population served |
|---|---|
| TOWN OF ST. MICHAELS | 2,650 |
| MARTINGHAM UTILITIES COOPERATIVE | 675 |
Frequently asked questions about St Michaels tap water
Is St Michaels tap water safe to drink?
EPA testing detected 14 contaminants in the water serving St Michaels. 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 St Michaels?
2 public water suppliers report drinking-water monitoring for St Michaels, Maryland to the EPA. Each is listed above with its population served.
What contaminants are in St Michaels's water?
The contaminants EPA monitoring detected in St Michaels include Fluoride, Arsenic, TTHM, Gross Beta Particle Activity, Selenium. 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.