What was found in ZIP 20186
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 3930 µg/L 39% of the EPA limit 10000 µg/L | 1/1 | SYR4 |
| Copper | 1380 µg/L 106% of the EPA limit, in the worst sample — 1300 µg/L | 1/1 | SYR4 |
| Fluoride | 1020 µg/L 26% of the EPA limit 4000 µg/L | 1/1 | SYR4 |
| TTHM | 149 µg/L 186% of the EPA limit, in the worst sample — 80 µg/L | 1/1 | SYR4 |
| Chloroform | 129 µg/L No EPA limit set | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 50 µg/L 83% of the EPA limit 60 µg/L | 1/1 | SYR4 |
| Lead | 35.5 µg/L 237% of the EPA limit, in the worst sample — 15 µg/L | 1/1 | SYR4 |
| Trichloroacetic Acid | 33 µg/L No EPA limit set | 1/1 | SYR4 |
| Barium | 31 µg/L 1.6% of the EPA limit 2000 µg/L | 1/1 | SYR4 |
| Dichloroacetic Acid | 19 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromodichloromethane | 17 µg/L No EPA limit set | 1/1 | SYR4 |
| Gross Beta Particle Activity | 6.3 pCi/L No EPA limit set | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 4.1 pCi/L 82% of the EPA limit 5 pCi/L | 1/1 | SYR4 |
| Dibromochloromethane | 3.7 µg/L No EPA limit set | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.2 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromoform | 0.5000 µg/L No EPA limit set | 1/1 | SYR4 |
| PFOA | 0.0046 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Pfpea | 0.0033 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 1/1 | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 20186
| Supplier | State | Population served |
|---|---|---|
| WARRENTON, TOWN OF | VA | 11,801 |
Frequently asked questions about ZIP 20186 tap water
Is the tap water in ZIP 20186 safe to drink?
EPA testing detected 19 contaminants across the water suppliers serving ZIP 20186. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 20186?
1 public water supplier report EPA drinking-water monitoring for ZIP 20186. Each is listed above with its population served.
What contaminants are in ZIP 20186's water?
EPA monitoring detected Nitrate-Nitrite, Copper, Fluoride, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.