What was found in ZIP 21017
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 | 4647 µg/L 46% of the EPA limit 10000 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 4010 µg/L 40% of the EPA limit 10000 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2018 | 1/1 | SYR4 |
| Fluoride | 760 µg/L 19% of the EPA limit 4000 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Barium | 111 µg/L 5.6% of the EPA limit 2000 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| TTHM | 45.69 µg/L 57% of the EPA limit 80 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 32.68 µg/L 54% of the EPA limit 60 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Chloroform | 30.9055 µg/L No EPA limit set Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 14.62 µg/L No EPA limit set Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2015 | 1/1 | SYR4 |
| Trichloroacetic Acid | 13.175 µg/L No EPA limit set Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2015 | 1/1 | SYR4 |
| Bromodichloromethane | 9.81 µg/L No EPA limit set Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 9.7 µg/L No EPA limit set Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2015 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 7.985 pCi/L 53% of the EPA limit 15 pCi/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2017 | 1/1 | SYR4 |
| Monobromoacetic Acid | 5 µg/L No EPA limit set Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2015 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 4.295 pCi/L No EPA limit set Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2017 | 1/1 | SYR4 |
| Chromium | 3.4 µg/L 3.4% of the EPA limit 100 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Selenium | 2.959 µg/L 5.9% of the EPA limit 50 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.725 µg/L No EPA limit set Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2015 | 1/1 | SYR4 |
| Dibromochloromethane | 2.6 µg/L No EPA limit set Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.985 pCi/L 40% of the EPA limit 5 pCi/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2017 | 1/1 | SYR4 |
| Arsenic | 1.556 µg/L 16% of the EPA limit 10 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Trichloroethylene | 0.5800 µg/L 12% of the EPA limit 5 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Atrazine | 0.5440 µg/L 18% of the EPA limit 3 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.4852 µg/L 8.1% of the EPA limit 6 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Mercury | 0.1718 µg/L 8.6% of the EPA limit 2 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Simazine | 0.1354 µg/L 3.4% of the EPA limit 4 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Beryllium, Total | 0.1195 µg/L 3% of the EPA limit 4 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Cadmium | 0.1100 µg/L 2.2% of the EPA limit 5 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| 1,1-Dichloroethylene | 0.1000 µg/L 1.4% of the EPA limit 7 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Thallium, Total | 0.1000 µg/L 5% of the EPA limit 2 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 0.0900 µg/L 1.5% of the EPA limit 6 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Adipate | 0.0747 µg/L 0% of the EPA limit 400 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Ethylene Dibromide | 0.0100 µg/L 20% of the EPA limit 0.0500 µg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: HARFORD COUNTY D.P.W. · 104,567 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 21017
| Supplier | State | Population served |
|---|---|---|
| HARFORD COUNTY D.P.W. | MD | 104,567 |
Frequently asked questions about ZIP 21017 tap water
Is the tap water in ZIP 21017 safe to drink?
EPA testing detected 33 contaminants across the water suppliers serving ZIP 21017. 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 21017?
1 public water supplier report EPA drinking-water monitoring for ZIP 21017. Each is listed above with its population served.
What contaminants are in ZIP 21017'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.