What was found in ZIP 21102
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 | 8020 µg/L 80% of the EPA limit 10000 µg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 6876 µg/L 69% of the EPA limit 10000 µg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2018 | 1/1 | SYR4 |
| Fluoride | 100 µg/L 2.5% of the EPA limit 4000 µg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Barium | 29 µg/L 1.5% of the EPA limit 2000 µg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Selenium | 17.8 µg/L 36% of the EPA limit 50 µg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| TTHM | 14.542 µg/L 18% of the EPA limit 80 µg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Chromium | 6.63 µg/L 6.6% of the EPA limit 100 µg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.28 pCi/L 35% of the EPA limit 15 pCi/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 5.16 pCi/L No EPA limit set Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Arsenic | 3.58 µg/L 36% of the EPA limit 10 µg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Bromoform | 3.222 µg/L No EPA limit set Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Chloroform | 2.216 µg/L No EPA limit set Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 2.035 µg/L No EPA limit set Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 1.664 µg/L No EPA limit set Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.36 µg/L 2.3% of the EPA limit 60 µg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.9800 pCi/L 20% of the EPA limit 5 pCi/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| Chlorobenzene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| trans-1,2-Dichloroethylene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2019 | 1/1 | SYR4 |
| PFBS | 0.0168 µg/L No EPA limit set Main supplier: TOWN OF MANCHESTER · 4,954 people · 2024 | 1/1 | UCMR-5 |
| Pfba | 0.0057 µg/L No EPA limit set Main supplier: TOWN OF MANCHESTER · 4,954 people · 2024 | 1/1 | UCMR-5 |
| PFOA | 0.0047 µg/L No EPA limit set Main supplier: TOWN OF MANCHESTER · 4,954 people · 2024 | 1/1 | UCMR-5 |
| Pfpea | 0.0037 µg/L No EPA limit set Main supplier: TOWN OF MANCHESTER · 4,954 people · 2024 | 1/1 | UCMR-5 |
| Pfhxa | 0.0036 µg/L No EPA limit set Main supplier: TOWN OF MANCHESTER · 4,954 people · 2024 | 1/1 | UCMR-5 |
| PFHXS | 0.0031 µg/L No EPA limit set Main supplier: TOWN OF MANCHESTER · 4,954 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0012 mg/L 7.7% of the EPA limit 0.0150 mg/L Main supplier: TOWN OF MANCHESTER · 4,954 people · 2023 | 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 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 21102
| Supplier | State | Population served |
|---|---|---|
| TOWN OF MANCHESTER | MD | 4,954 |
Frequently asked questions about ZIP 21102 tap water
Is the tap water in ZIP 21102 safe to drink?
EPA testing detected 25 contaminants across the water suppliers serving ZIP 21102. 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 21102?
1 public water supplier report EPA drinking-water monitoring for ZIP 21102. Each is listed above with its population served.
What contaminants are in ZIP 21102's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Barium, Selenium, and others across this ZIP's suppliers. The full list with levels and sources is above.