What was found in ZIP 20111
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Copper | 456.25 µg/L 35% of the EPA limit 1300 µg/L Main supplier: PWCSA - WEST · 136,409 people · 2017 | 2/2 | SYR4 |
| TTHM | 45.72 µg/L 57% of the EPA limit 80 µg/L Main supplier: PWCSA - WEST · 136,409 people · 2019
Highest in the ZIP: 75.57 µg/L — MANASSAS PARK, CITY OF · 14,051 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 42.855 µg/L 71% of the EPA limit 60 µg/L Main supplier: PWCSA - WEST · 136,409 people · 2019
Highest in the ZIP: 63 µg/L — MANASSAS PARK, CITY OF · 14,051 people · 2019 | 2/2 | SYR4 |
| Chloroform | 37.48 µg/L No EPA limit set Main supplier: PWCSA - WEST · 136,409 people · 2019
Highest in the ZIP: 60.795 µg/L — MANASSAS PARK, CITY OF · 14,051 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 18.435 µg/L No EPA limit set Main supplier: PWCSA - WEST · 136,409 people · 2019
Highest in the ZIP: 25.3 µg/L — MANASSAS PARK, CITY OF · 14,051 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 20.8 µg/L No EPA limit set Main supplier: PWCSA - WEST · 136,409 people · 2019
Highest in the ZIP: 23 µg/L — MANASSAS PARK, CITY OF · 14,051 people · 2019 | 2/2 | SYR4 |
| Lead | 17.317 µg/L 115% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: PWCSA - WEST · 136,409 people · 2017 | 2/2 | SYR4 |
| Bromodichloromethane | 8.92 µg/L No EPA limit set Main supplier: PWCSA - WEST · 136,409 people · 2019
Highest in the ZIP: 10.745 µg/L — MANASSAS PARK, CITY OF · 14,051 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 3.42 µg/L No EPA limit set Main supplier: PWCSA - WEST · 136,409 people · 2019
Highest in the ZIP: 10.6 µg/L — MANASSAS PARK, CITY OF · 14,051 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 5.34 µg/L No EPA limit set Main supplier: PWCSA - WEST · 136,409 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 2.139 µg/L No EPA limit set Main supplier: PWCSA - WEST · 136,409 people · 2019
Highest in the ZIP: 2.6 µg/L — MANASSAS PARK, CITY OF · 14,051 people · 2019 | 2/2 | SYR4 |
| Bromoform | 1.73 µg/L No EPA limit set Main supplier: PWCSA - WEST · 136,409 people · 2019 | 2/2 | SYR4 |
| Pfpea | 0.0050 µg/L No EPA limit set Main supplier: PWCSA - WEST · 136,409 people · 2024 | 2/2 | UCMR-5 |
| Pfhxa | 0.0036 µg/L No EPA limit set Main supplier: PWCSA - WEST · 136,409 people · 2024 | 2/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: PWCSA - WEST · 136,409 people · 2023 | 2/2 | 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.
Water suppliers serving ZIP 20111
| Supplier | State | Population served |
|---|---|---|
| PWCSA - WEST | VA | 136,409 |
| MANASSAS PARK, CITY OF | VA | 14,051 |
Frequently asked questions about ZIP 20111 tap water
Is the tap water in ZIP 20111 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 20111. 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 20111?
2 public water suppliers report EPA drinking-water monitoring for ZIP 20111. Each is listed above with its population served.
What contaminants are in ZIP 20111's water?
EPA monitoring detected Copper, TTHM, Total Haloacetic Acids (HAA5), Chloroform, Trichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.