What was found in ZIP 21114
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 | 2750 µg/L 28% of the EPA limit 10000 µg/L | 2/2 | SYR4 |
| Nitrate-Nitrite | 2750 µg/L 28% of the EPA limit 10000 µg/L | 1/2 | SYR4 |
| Fluoride | 926 µg/L 23% of the EPA limit 4000 µg/L | 2/2 | SYR4 |
| TTHM | 115.91 µg/L 145% of the EPA limit, in the worst sample — 80 µg/L | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 90.2 µg/L 150% of the EPA limit, in the worst sample — 60 µg/L | 2/2 | SYR4 |
| Chloroform | 89.6 µg/L No EPA limit set | 2/2 | SYR4 |
| Barium | 49.6 µg/L 2.5% of the EPA limit 2000 µg/L | 2/2 | SYR4 |
| Trichloroacetic Acid | 46.7 µg/L No EPA limit set | 2/2 | SYR4 |
| Dichloroacetic Acid | 25.6 µg/L No EPA limit set | 2/2 | SYR4 |
| Bromodichloromethane | 24.2 µg/L No EPA limit set | 2/2 | SYR4 |
| Dibromoacetic Acid | 14.8 µg/L No EPA limit set | 1/2 | SYR4 |
| Dibromochloromethane | 13.8 µg/L No EPA limit set | 2/2 | SYR4 |
| Monobromoacetic Acid | 9.56 µg/L No EPA limit set | 1/2 | SYR4 |
| Lithium | 9.06 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Gross Beta Particle Activity | 7.3 pCi/L No EPA limit set | 1/2 | SYR4 |
| Monochloroacetic Acid | 3.61 µg/L No EPA limit set | 1/2 | SYR4 |
| Bromoform | 2.32 µg/L No EPA limit set | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.3 pCi/L 15% of the EPA limit 15 pCi/L | 2/2 | SYR4 |
| Chromium | 2.1 µg/L 2.1% of the EPA limit 100 µg/L | 1/2 | SYR4 |
| Thallium, Total | 1 µg/L 50% of the EPA limit 2 µg/L | 1/2 | SYR4 |
| Atrazine | 0.1600 µg/L 5.3% of the EPA limit 3 µg/L | 1/2 | SYR4 |
| Simazine | 0.0850 µg/L 2.1% of the EPA limit 4 µg/L | 1/2 | SYR4 |
| Pfpea | 0.0067 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Pfhxa | 0.0048 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 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 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 21114
| Supplier | State | Population served |
|---|---|---|
| WASHINGTON SUBURBAN SANITARY COMMISSION | MD | 1,900,000 |
| CROFTON-ODENTON | MD | 62,986 |
Frequently asked questions about ZIP 21114 tap water
Is the tap water in ZIP 21114 safe to drink?
EPA testing detected 25 contaminants across the water suppliers serving ZIP 21114. 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 21114?
2 public water suppliers report EPA drinking-water monitoring for ZIP 21114. Each is listed above with its population served.
What contaminants are in ZIP 21114's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, TTHM, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.