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
29
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MR | Monitoring | Resolved | 2014-07-01 → 2014-07-31 |
| MR | Monitoring | Resolved | 2014-07-01 → 2014-07-31 |
| MR | Monitoring | Resolved | 2014-07-01 → 2014-07-31 |
| MR | Monitoring | Resolved | 2014-07-01 → 2014-07-31 |
| MR | Monitoring | Resolved | 2014-04-01 → 2014-04-30 |
| MR | Monitoring | Resolved | 2014-04-01 → 2014-04-30 |
| MR | Monitoring | Resolved | 2014-04-01 → 2014-04-30 |
| MR | Monitoring | Resolved | 2014-04-01 → 2014-04-30 |
| MR | Monitoring | Resolved | 2014-01-01 → 2014-01-31 |
| MR | Monitoring | Resolved | 2014-01-01 → 2014-01-31 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
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 |
|---|---|---|---|---|
| Nitrate | 6212.5 µg/L 62% of the EPA limit 10000 µg/L
worst single sample: 7100 µg/L | 416/416 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 6208.13 µg/L 62% of the EPA limit 10000 µg/L
worst single sample: 7100 µg/L | 208/208 | SYR4 | 2012–2019 |
| Dibromochloromethane | 5.75 µg/L No EPA limit set
worst single sample: 10.2 µg/L | 205/211 | SYR4 | 2012–2019 |
| Bromodichloromethane | 16.535 µg/L No EPA limit set
worst single sample: 21 µg/L | 194/211 | SYR4 | 2012–2019 |
| TTHM | 57.44 µg/L 72% of the EPA limit 80 µg/L
worst single sample: 89.4 µg/L | 175/177 | SYR4 | 2012–2019 |
| Chloroform | 49.54 µg/L No EPA limit set
worst single sample: 71.3 µg/L | 163/211 | SYR4 | 2012–2019 |
| Fluoride | 1218 µg/L 30% of the EPA limit 4000 µg/L
worst single sample: 2410 µg/L | 154/208 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 45.535 µg/L 76% of the EPA limit 60 µg/L
worst single sample: 66 µg/L | 136/177 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 25.2 µg/L No EPA limit set
worst single sample: 41 µg/L | 120/178 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 20.6 µg/L No EPA limit set
worst single sample: 25 µg/L | 111/178 | SYR4 | 2012–2019 |
| Copper | 742.2 µg/L 57% of the EPA limit 1300 µg/L
worst single sample: 893 µg/L | 65/66 | SYR4 | 2014–2017 |
| Bromoform | 2.715 µg/L No EPA limit set
worst single sample: 2.81 µg/L | 35/211 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 2.1385 µg/L No EPA limit set
worst single sample: 2.3 µg/L | 30/178 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 3.896 µg/L 78% of the EPA limit 5 µg/L
worst single sample: 4.2 µg/L | 22/48 | SYR4 | 2012–2019 |
| Lead | 25.28 µg/L 169% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 42.2 µg/L | 10/68 | SYR4 | 2013–2017 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L | 9/9 | LCR | 2024 |
| Monochloroacetic Acid | 11.54 µg/L No EPA limit set
worst single sample: 12.5 µg/L | 9/178 | SYR4 | 2012–2019 |
| Atrazine | 0.1429 µg/L 4.8% of the EPA limit 3 µg/L
worst single sample: 0.1600 µg/L | 8/29 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 0.3330 µg/L 5.6% of the EPA limit 6 µg/L
worst single sample: 0.3400 µg/L | 8/24 | SYR4 | 2012–2019 |
| Barium | 209.04 µg/L 10% of the EPA limit 2000 µg/L
worst single sample: 213 µg/L | 5/5 | SYR4 | 2013–2015 |
| Chromium | 3.38 µg/L 3.4% of the EPA limit 100 µg/L
worst single sample: 3.6 µg/L | 5/5 | SYR4 | 2013–2015 |
| Heptachlor Epoxide | 0.0134 µg/L 6.7% of the EPA limit 0.2000 µg/L
worst single sample: 0.0140 µg/L | 3/19 | SYR4 | 2013–2019 |
| Trichloroethylene | 0.3460 µg/L 6.9% of the EPA limit 5 µg/L
worst single sample: 0.3500 µg/L | 3/48 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Adipate | 0.1115 µg/L 0% of the EPA limit 400 µg/L
worst single sample: 0.1160 µg/L | 2/26 | SYR4 | 2012–2019 |
| 1,2-Dichloropropane | 0.5100 µg/L 10% of the EPA limit 5 µg/L | 1/48 | SYR4 | 2012–2019 |
| Chlordane | 0.2000 µg/L 10% of the EPA limit 2 µg/L | 1/16 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 0.0908 pCi/L 1.8% of the EPA limit 5 pCi/L | 1/2 | SYR4 | 2016 |
| Hexachlorocyclopentadiene | 0.0250 µg/L 0.1% of the EPA limit 50 µg/L | 1/32 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 0.1400 µg/L 0.2% of the EPA limit 70 µg/L | 1/48 | SYR4 | 2012–2019 |
69 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideDichloromethaneDalaponDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, TotalLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Newark Water Department
Is Newark Water Department tap water safe to drink?
EPA monitoring detected 37 contaminants in Newark Water Department'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 Newark Water Department's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Dibromochloromethane, Bromodichloromethane, TTHM, and others. The full list with the level and data source for each is above.
How many people does Newark Water Department serve?
Newark Water Department reports serving 40,000 people in Delaware, per its EPA record.
Has Newark Water Department had any water quality violations?
The EPA has 29 violations on file for Newark Water Department, 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.