What was found in ZIP 21713
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 | 4810 µg/L 48% of the EPA limit 10000 µg/L Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 4710 µg/L 47% of the EPA limit 10000 µg/L Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2019 | 1/1 | SYR4 |
| Fluoride | 570 µg/L 14% of the EPA limit 4000 µg/L Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2019 | 1/1 | SYR4 |
| Barium | 69.35 µg/L 3.5% of the EPA limit 2000 µg/L Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2019 | 1/1 | SYR4 |
| TTHM | 13.058 µg/L 16% of the EPA limit 80 µg/L Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 8.505 µg/L 14% of the EPA limit 60 µg/L Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 8.442 µg/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2015 | 1/1 | SYR4 |
| Chloroform | 6.739 µg/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2015 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.11 pCi/L 34% of the EPA limit 15 pCi/L Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2015 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 4.2 pCi/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2015 | 1/1 | SYR4 |
| Bromodichloromethane | 3.248 µg/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2015 | 1/1 | SYR4 |
| Chromium | 2.2 µg/L 2.2% of the EPA limit 100 µg/L Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.92 pCi/L 38% of the EPA limit 5 pCi/L Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2015 | 1/1 | SYR4 |
| Dibromochloromethane | 1.4955 µg/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.264 µg/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2015 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.0075 µg/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2015 | 1/1 | SYR4 |
| Xylenes, Total | 0.7000 µg/L 0% of the EPA limit 10000 µg/L Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2019 | 1/1 | SYR4 |
| Pfhxa | 0.0089 µg/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0072 µg/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0067 µg/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0041 µg/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0033 mg/L 22% of the EPA limit 0.0150 mg/L Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2021 | 1/1 | LCR |
| PFHXS | 0.0031 µg/L No EPA limit set Main supplier: BOONSBORO - KEEDYSVILLE · 4,250 people · 2025 | 1/1 | UCMR-5 |
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 21713
| Supplier | State | Population served |
|---|---|---|
| BOONSBORO - KEEDYSVILLE | MD | 4,250 |
Frequently asked questions about ZIP 21713 tap water
Is the tap water in ZIP 21713 safe to drink?
EPA testing detected 23 contaminants across the water suppliers serving ZIP 21713. 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 21713?
1 public water supplier report EPA drinking-water monitoring for ZIP 21713. Each is listed above with its population served.
What contaminants are in ZIP 21713's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Barium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.