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.
4
health-based violations
580
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2010-08-01 → 2010-08-31 |
| MCL | Health-based | Resolved | 2010-08-01 → 2010-08-31 |
| MCL | Health-based | Resolved | 2010-08-01 → 2010-08-31 |
| MCL | Health-based | Resolved | 2010-08-01 → 2010-08-31 |
| MR | Monitoring | Resolved | 2013-10-01 → 2013-12-31 |
| MR | Monitoring | Resolved | 2013-10-01 → 2013-12-31 |
| MR | Monitoring | Resolved | 2013-10-01 → 2013-12-31 |
| MR | Monitoring | Resolved | 2013-10-01 → 2013-12-31 |
| MR | Monitoring | Resolved | 2013-10-01 → 2013-12-31 |
| MR | Monitoring | Resolved | 2013-10-01 → 2013-12-31 |
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 | 8650 µg/L 87% of the EPA limit 10000 µg/L
worst single sample: 10300 µg/L | 1130/1138 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 8565 µg/L 86% of the EPA limit 10000 µg/L
worst single sample: 10300 µg/L | 348/356 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 9.775 µg/L 14% of the EPA limit 70 µg/L
worst single sample: 10.4 µg/L | 156/923 | SYR4 | 2012–2019 |
| Barium | 64.7 µg/L 3.2% of the EPA limit 2000 µg/L
worst single sample: 660 µg/L | 127/130 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 5.41 µg/L 77% of the EPA limit 7 µg/L
worst single sample: 6.7 µg/L | 100/923 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 17.51 µg/L 350% of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 19.4 µg/L | 99/899 | SYR4 | 2012–2019 |
| Trichloroethylene | 3.875 µg/L 78% of the EPA limit 5 µg/L
worst single sample: 4.8 µg/L | 98/923 | SYR4 | 2012–2019 |
| 1,1,1-Trichloroethane | 2.79 µg/L 1.4% of the EPA limit 200 µg/L
worst single sample: 4.1 µg/L | 88/923 | SYR4 | 2012–2019 |
| Copper | 114 µg/L 8.8% of the EPA limit 1300 µg/L
worst single sample: 170 µg/L | 53/132 | SYR4 | 2012–2019 |
| Heptachlor Epoxide | 0.0783 µg/L 39% of the EPA limit 0.2000 µg/L
worst single sample: 0.1000 µg/L | 48/155 | SYR4 | 2012–2019 |
| Ethylene Dibromide | 0.0232 µg/L 46% of the EPA limit 0.0500 µg/L
worst single sample: 0.0300 µg/L | 40/254 | SYR4 | 2012–2019 |
| Combined Uranium | 3.045 µg/L 10% of the EPA limit 30 µg/L
worst single sample: 3.44 µg/L | 31/57 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 4.026 pCi/L 81% of the EPA limit 5 pCi/L
worst single sample: 4.4 pCi/L | 25/52 | SYR4 | 2013–2019 |
| Gross Beta Particle Activity | 3.5535 pCi/L No EPA limit set
worst single sample: 4.05 pCi/L | 24/25 | SYR4 | 2016–2019 |
| Selenium | 3.3 µg/L 6.6% of the EPA limit 50 µg/L | 20/131 | SYR4 | 2012–2019 |
| Bromoform | 1.76 µg/L No EPA limit set
worst single sample: 1.9 µg/L | 15/132 | SYR4 | 2012–2019 |
| TTHM | 1.77 µg/L 2.2% of the EPA limit 80 µg/L
worst single sample: 1.9 µg/L | 14/131 | SYR4 | 2012–2019 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L | 12/12 | LCR | 2024 |
| Fluoride | 235 µg/L 5.9% of the EPA limit 4000 µg/L
worst single sample: 260 µg/L | 6/132 | SYR4 | 2012–2019 |
| Lead | 4.2775 µg/L 29% of the EPA limit 15 µg/L
worst single sample: 4.5 µg/L | 6/131 | SYR4 | 2012–2019 |
| Chlordane | 0.7460 µg/L 37% of the EPA limit 2 µg/L
worst single sample: 0.8500 µg/L | 5/156 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 1.116 pCi/L 7.4% of the EPA limit 15 pCi/L
worst single sample: 1.14 pCi/L | 5/57 | SYR4 | 2013–2019 |
| Carbon Tetrachloride | 2.381 µg/L 48% of the EPA limit 5 µg/L
worst single sample: 2.48 µg/L | 2/924 | SYR4 | 2012–2019 |
| Chromium | 3.261 µg/L 3.3% of the EPA limit 100 µg/L
worst single sample: 3.4 µg/L | 2/143 | SYR4 | 2012–2019 |
| 1,1,2-Trichloroethane | 1.2 µg/L 24% of the EPA limit 5 µg/L | 1/924 | SYR4 | 2012–2019 |
| 1,2-Dichloroethane | 0.9800 µg/L 20% of the EPA limit 5 µg/L | 1/924 | SYR4 | 2012–2019 |
| 2,4-D | 2.6 µg/L 3.7% of the EPA limit 70 µg/L | 1/139 | SYR4 | 2012–2019 |
| Chloroform | 0.5600 µg/L No EPA limit set | 1/132 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 0.7500 µg/L 13% of the EPA limit 6 µg/L | 1/139 | SYR4 | 2012–2019 |
| Nitrite | 1800 µg/L 180% of the EPA limit, at the 95th percentile of samples — 1000 µg/L | 1/360 | SYR4 | 2012–2019 |
70 contaminants tested, none detected
1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP4:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneChlorobenzeneCyanideCadmiumCarbofuranDichloromethaneDalaponDi(2-ethylhexyl) AdipateDibromochloromethaneDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Port Washington Wd
Is Port Washington Wd tap water safe to drink?
EPA monitoring detected 36 contaminants in Port Washington Wd'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 Port Washington Wd's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, cis-1,2-Dichloroethylene, Barium, 1,1-Dichloroethylene, and others. The full list with the level and data source for each is above.
How many people does Port Washington Wd serve?
Port Washington Wd reports serving 34,000 people in New York, per its EPA record.
Has Port Washington Wd had any water quality violations?
The EPA has 580 violations on file for Port Washington Wd, of which 4 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.