What was found in ZIP 21539
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 | 1780 µg/L 18% of the EPA limit 10000 µg/L Main supplier: MIDLAND-LONACONING · 5,000 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 1089 µg/L 11% of the EPA limit 10000 µg/L Main supplier: MIDLAND-LONACONING · 5,000 people · 2018 | 1/1 | SYR4 |
| Barium | 122 µg/L 6.1% of the EPA limit 2000 µg/L Main supplier: MIDLAND-LONACONING · 5,000 people · 2018 | 1/1 | SYR4 |
| TTHM | 49.088 µg/L 61% of the EPA limit 80 µg/L Main supplier: MIDLAND-LONACONING · 5,000 people · 2019 | 1/1 | SYR4 |
| Chloroform | 39.563 µg/L No EPA limit set Main supplier: MIDLAND-LONACONING · 5,000 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 39.067 µg/L 65% of the EPA limit 60 µg/L Main supplier: MIDLAND-LONACONING · 5,000 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 18.1505 µg/L No EPA limit set Main supplier: MIDLAND-LONACONING · 5,000 people · 2017 | 1/1 | SYR4 |
| Dichloroacetic Acid | 18.02 µg/L No EPA limit set Main supplier: MIDLAND-LONACONING · 5,000 people · 2017 | 1/1 | SYR4 |
| Bromodichloromethane | 5.718 µg/L No EPA limit set Main supplier: MIDLAND-LONACONING · 5,000 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.288 µg/L No EPA limit set Main supplier: MIDLAND-LONACONING · 5,000 people · 2017 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.304 µg/L No EPA limit set Main supplier: MIDLAND-LONACONING · 5,000 people · 2017 | 1/1 | SYR4 |
| Dibromochloromethane | 1.195 µg/L No EPA limit set Main supplier: MIDLAND-LONACONING · 5,000 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.15 µg/L 19% of the EPA limit 6 µg/L Main supplier: MIDLAND-LONACONING · 5,000 people · 2018 | 1/1 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: MIDLAND-LONACONING · 5,000 people · 2025 | 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 21539
| Supplier | State | Population served |
|---|---|---|
| MIDLAND-LONACONING | MD | 5,000 |
Frequently asked questions about ZIP 21539 tap water
Is the tap water in ZIP 21539 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 21539. 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 21539?
1 public water supplier report EPA drinking-water monitoring for ZIP 21539. Each is listed above with its population served.
What contaminants are in ZIP 21539's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Barium, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.