Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
0
health-based violations
26
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MR | Monitoring | Resolved | 2024-07-01 → 2024-09-30 |
| MR | Monitoring | Resolved | 2024-07-01 → 2024-09-30 |
| MR | Monitoring | Resolved | 2024-07-01 → 2024-09-30 |
| MR | Monitoring | Resolved | 2024-07-01 → 2024-09-30 |
| MR | Monitoring | Resolved | 2024-07-01 → 2024-09-30 |
| MR | Monitoring | Resolved | 2024-07-01 → 2024-09-30 |
| MR | Monitoring | Resolved | 2022-04-01 → 2022-06-30 |
| MR | Monitoring | Resolved | 2022-04-01 → 2022-06-30 |
| MR | Monitoring | Resolved | 2022-04-01 → 2022-06-30 |
| MR | Monitoring | Resolved | 2022-04-01 → 2022-06-30 |
Other contaminants detected
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 this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Total Haloacetic Acids (HAA5) | 32.68 µg/L 54% of the EPA limit 60 µg/L
worst single sample: 60.8 µg/L | 393/393 | SYR4 | 2012–2019 |
| TTHM | 45.69 µg/L 57% of the EPA limit 80 µg/L
worst single sample: 72.2 µg/L | 392/392 | SYR4 | 2012–2019 |
| Chloroform | 30.9055 µg/L No EPA limit set
worst single sample: 49.9 µg/L | 254/267 | SYR4 | 2012–2019 |
| Bromodichloromethane | 9.81 µg/L No EPA limit set
worst single sample: 12 µg/L | 250/265 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 13.175 µg/L No EPA limit set
worst single sample: 31 µg/L | 234/235 | SYR4 | 2012–2015 |
| Dichloroacetic Acid | 14.62 µg/L No EPA limit set
worst single sample: 24.8 µg/L | 233/233 | SYR4 | 2012–2015 |
| Dibromochloromethane | 2.6 µg/L No EPA limit set
worst single sample: 4.1 µg/L | 214/244 | SYR4 | 2012–2019 |
| Nitrate | 4647 µg/L 46% of the EPA limit 10000 µg/L
worst single sample: 5200 µg/L | 110/110 | SYR4 | 2012–2019 |
| Barium | 111 µg/L 5.6% of the EPA limit 2000 µg/L
worst single sample: 112 µg/L | 26/29 | SYR4 | 2012–2019 |
| Fluoride | 760 µg/L 19% of the EPA limit 4000 µg/L
worst single sample: 950 µg/L | 25/29 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2023 |
| Chromium | 3.4 µg/L 3.4% of the EPA limit 100 µg/L
worst single sample: 4 µg/L | 9/34 | SYR4 | 2012–2019 |
| Atrazine | 0.5440 µg/L 18% of the EPA limit 3 µg/L
worst single sample: 0.6700 µg/L | 8/46 | SYR4 | 2012–2019 |
| Arsenic | 1.556 µg/L 16% of the EPA limit 10 µg/L
worst single sample: 2 µg/L | 7/69 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 2.725 µg/L No EPA limit set
worst single sample: 2.8 µg/L | 6/239 | SYR4 | 2012–2015 |
| Mercury | 0.1718 µg/L 8.6% of the EPA limit 2 µg/L
worst single sample: 0.1760 µg/L | 5/32 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 4010 µg/L 40% of the EPA limit 10000 µg/L
worst single sample: 4100 µg/L | 5/5 | SYR4 | 2015–2018 |
| Simazine | 0.1354 µg/L 3.4% of the EPA limit 4 µg/L
worst single sample: 0.1400 µg/L | 5/40 | SYR4 | 2012–2019 |
| Trichloroethylene | 0.5800 µg/L 12% of the EPA limit 5 µg/L
worst single sample: 0.6000 µg/L | 5/61 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 0.4852 µg/L 8.1% of the EPA limit 6 µg/L
worst single sample: 0.5150 µg/L | 3/40 | SYR4 | 2012–2019 |
| Selenium | 2.959 µg/L 5.9% of the EPA limit 50 µg/L
worst single sample: 3.2 µg/L | 3/33 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 0.1000 µg/L 1.4% of the EPA limit 7 µg/L | 2/59 | SYR4 | 2012–2019 |
| Beryllium, Total | 0.1195 µg/L 3% of the EPA limit 4 µg/L
worst single sample: 0.1200 µg/L | 2/33 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 1.985 pCi/L 40% of the EPA limit 5 pCi/L
worst single sample: 2 pCi/L | 2/2 | SYR4 | 2014–2017 |
| Di(2-ethylhexyl) Adipate | 0.0747 µg/L 0% of the EPA limit 400 µg/L
worst single sample: 0.0750 µg/L | 2/40 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 7.985 pCi/L 53% of the EPA limit 15 pCi/L
worst single sample: 8.1 pCi/L | 2/4 | SYR4 | 2013–2017 |
| Gross Beta Particle Activity | 4.295 pCi/L No EPA limit set
worst single sample: 4.3 pCi/L | 2/4 | SYR4 | 2013–2017 |
| Antimony, Total | 0.0900 µg/L 1.5% of the EPA limit 6 µg/L | 1/34 | SYR4 | 2012–2019 |
| Cadmium | 0.1100 µg/L 2.2% of the EPA limit 5 µg/L | 1/34 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 9.7 µg/L No EPA limit set | 1/239 | SYR4 | 2012–2015 |
| Ethylene Dibromide | 0.0100 µg/L 20% of the EPA limit 0.0500 µg/L | 1/39 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 5 µg/L No EPA limit set | 1/239 | SYR4 | 2012–2015 |
| Thallium, Total | 0.1000 µg/L 5% of the EPA limit 2 µg/L | 1/33 | SYR4 | 2012–2019 |
74 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAsbestosBhc-GammaBenzeneBenzo(A)PyreneBromoformChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDinosebEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Harford County D.P.W.
Is Harford County D.P.W. tap water safe to drink?
EPA monitoring detected 33 contaminants in Harford County D.P.W.'s water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Harford County D.P.W.'s water?
EPA monitoring detected Total Haloacetic Acids (HAA5), TTHM, Chloroform, Bromodichloromethane, Trichloroacetic Acid, and others. The full list with the level and data source for each is above.
How many people does Harford County D.P.W. serve?
Harford County D.P.W. reports serving 104,567 people in Maryland, per its EPA record.
Has Harford County D.P.W. had any water quality violations?
The EPA has 26 violations on file for Harford County D.P.W., of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.