What was found in Patuxent River'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 | 660 µg/L 17% of the EPA limit 4000 µg/L Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2019 | 1/1 | SYR4 |
| Lithium | 19.7 µg/L No EPA limit set Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2025 | 1/1 | UCMR-5 |
| Barium | 18.65 µg/L 0.9% of the EPA limit 2000 µg/L Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2019 | 1/1 | SYR4 |
| Arsenic | 9.7 µg/L 97% of the EPA limit 10 µg/L Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 7.64 pCi/L No EPA limit set Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2014 | 1/1 | SYR4 |
| TTHM | 6.495 µg/L 8.1% of the EPA limit 80 µg/L Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 4.48 µg/L 7.5% of the EPA limit 60 µg/L Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2019 | 1/1 | SYR4 |
| Chloroform | 3.948 µg/L No EPA limit set Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2018 | 1/1 | SYR4 |
| Toluene | 2 µg/L 0.2% of the EPA limit 1000 µg/L Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 1.85 µg/L No EPA limit set Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2018 | 1/1 | SYR4 |
| Dibromochloromethane | 1.611 µg/L No EPA limit set Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2018 | 1/1 | SYR4 |
| Bromoform | 1.3 µg/L No EPA limit set Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2018 | 1/1 | SYR4 |
| Dichloroacetic Acid | 1.19 µg/L No EPA limit set Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2015 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · 22,000 people · 2013 | 1/1 | LCR |
Water suppliers serving Patuxent River
| Supplier | Population served |
|---|---|
| PATUXENT NAVAL AIR STATION (NAVFAC-WASH) | 22,000 |
Frequently asked questions about Patuxent River tap water
Is Patuxent River tap water safe to drink?
EPA testing detected 14 contaminants in the water serving Patuxent River. 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 Patuxent River?
1 public water supplier report drinking-water monitoring for Patuxent River, Maryland to the EPA. Each is listed above with its population served.
What contaminants are in Patuxent River's water?
The contaminants EPA monitoring detected in Patuxent River include Fluoride, Lithium, Barium, Arsenic, Gross Beta Particle Activity. 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.