What was found in ZIP 28111
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 |
|---|---|---|---|
| Nitrate | 1820 µg/L 18% of the EPA limit 10000 µg/L Highest in the ZIP: MONROE, CITY OF · 43,081 people · 2019 | 1/2 | SYR4 |
| Fluoride | 881 µg/L 22% of the EPA limit 4000 µg/L Highest in the ZIP: MONROE, CITY OF · 43,081 people · 2019 | 1/2 | SYR4 |
| Copper | 256.9 µg/L 20% of the EPA limit 1300 µg/L Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019
Highest in the ZIP: 357.5 µg/L — MONROE, CITY OF · 43,081 people · 2017 | 2/2 | SYR4 |
| TTHM | 73.1 µg/L 91% of the EPA limit 80 µg/L Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019
Highest in the ZIP: 79.47 µg/L — MONROE, CITY OF · 43,081 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 66.8 µg/L 111% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019 | 2/2 | SYR4 |
| Chloroform | 65.2 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019 | 2/2 | SYR4 |
| Lead | 46.87 µg/L 312% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 35.85 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 31 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 22.75 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 10.5 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019
Highest in the ZIP: 18 µg/L — MONROE, CITY OF · 43,081 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 8.96 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 7.73 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 4.41 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019 | 2/2 | SYR4 |
| Bromoform | 4.09 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2019 | 1/2 | SYR4 |
| Atrazine | 0.8000 µg/L 27% of the EPA limit 3 µg/L Highest in the ZIP: MONROE, CITY OF · 43,081 people · 2019 | 1/2 | SYR4 |
| Simazine | 0.6276 µg/L 16% of the EPA limit 4 µg/L Highest in the ZIP: MONROE, CITY OF · 43,081 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0100 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2023 | 1/2 | UCMR-5 |
| Pfhxa | 0.0074 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2023 | 1/2 | UCMR-5 |
| Pfba | 0.0065 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2023
Highest in the ZIP: 0.0069 µg/L — MONROE, CITY OF · 43,081 people · 2024 | 2/2 | UCMR-5 |
| PFBS | 0.0056 µg/L No EPA limit set Highest in the ZIP: MONROE, CITY OF · 43,081 people · 2024 | 1/2 | UCMR-5 |
| PFOS | 0.0049 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2023 | 1/2 | UCMR-5 |
| PFOA | 0.0042 µg/L No EPA limit set Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2023 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: UNION COUNTY WATER SYSTEM · 169,685 people · 2025 | 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 28111
| Supplier | State | Population served |
|---|---|---|
| UNION COUNTY WATER SYSTEM | NC | 169,685 |
| MONROE, CITY OF | NC | 43,081 |
Frequently asked questions about ZIP 28111 tap water
Is the tap water in ZIP 28111 safe to drink?
EPA testing detected 24 contaminants across the water suppliers serving ZIP 28111. 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 28111?
2 public water suppliers report EPA drinking-water monitoring for ZIP 28111. Each is listed above with its population served.
What contaminants are in ZIP 28111's water?
EPA monitoring detected Nitrate, Fluoride, Copper, TTHM, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.