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.
2
health-based violations
13
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Archived | 1994-11-01 → 1994-11-30 |
| MCL | Health-based | Archived | 1994-07-01 → 1994-07-31 |
| MR | Monitoring | Resolved | 2012-10-01 → 2012-12-31 |
| MR | Monitoring | Resolved | 2012-10-01 → 2012-12-31 |
| MR | Monitoring | Resolved | 2012-10-01 → 2012-12-31 |
| MR | Monitoring | Resolved | 2012-10-01 → 2012-12-31 |
| MR | Monitoring | Resolved | 2003-01-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2003-01-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2003-01-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2002-11-01 → 2002-11-30 |
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 |
|---|---|---|---|---|
| Trichloroethylene | 5.909 µg/L 118% of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 8.6 µg/L | 395/1161 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 14.68 µg/L 294% of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 19 µg/L | 357/1160 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 8.125 µg/L 12% of the EPA limit 70 µg/L
worst single sample: 20.9 µg/L | 296/1161 | SYR4 | 2012–2019 |
| Nitrate | 3677.5 µg/L 37% of the EPA limit 10000 µg/L
worst single sample: 7300 µg/L | 196/202 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 0.9100 µg/L 13% of the EPA limit 7 µg/L
worst single sample: 1.2 µg/L | 121/1161 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 3652 µg/L 37% of the EPA limit 10000 µg/L
worst single sample: 4400 µg/L | 99/99 | SYR4 | 2012–2019 |
| Barium | 66.33 µg/L 3.3% of the EPA limit 2000 µg/L
worst single sample: 70 µg/L | 98/99 | SYR4 | 2012–2019 |
| Bromoform | 5.399 µg/L No EPA limit set
worst single sample: 9 µg/L | 84/434 | SYR4 | 2012–2019 |
| TTHM | 8.388 µg/L 10% of the EPA limit 80 µg/L
worst single sample: 59 µg/L | 77/403 | SYR4 | 2012–2019 |
| Dibromochloromethane | 2.796 µg/L No EPA limit set
worst single sample: 6.9 µg/L | 49/434 | SYR4 | 2012–2019 |
| Copper | 54.6 µg/L 4.2% of the EPA limit 1300 µg/L
worst single sample: 74 µg/L | 29/100 | SYR4 | 2012–2019 |
| Combined Uranium | 1.39017 µg/L 4.6% of the EPA limit 30 µg/L
worst single sample: 1.40805 µg/L | 17/20 | SYR4 | 2013–2019 |
| Gross Beta Particle Activity | 2.9315 pCi/L No EPA limit set
worst single sample: 2.99 pCi/L | 14/14 | SYR4 | 2016–2019 |
| Fluoride | 220 µg/L 5.5% of the EPA limit 4000 µg/L | 13/100 | SYR4 | 2012–2019 |
| Bromodichloromethane | 1.9745 µg/L No EPA limit set
worst single sample: 2.6 µg/L | 10/433 | SYR4 | 2012–2019 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L | 10/10 | LCR | 2025 |
| Arsenic | 17.6 µg/L 176% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 18 µg/L | 9/124 | SYR4 | 2012–2019 |
| Lead | 1.82 µg/L 12% of the EPA limit 15 µg/L
worst single sample: 2 µg/L | 7/101 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 2.055 pCi/L 41% of the EPA limit 5 pCi/L
worst single sample: 2.24 pCi/L | 6/20 | SYR4 | 2013–2019 |
| Toluene | 1.325 µg/L 0.1% of the EPA limit 1000 µg/L
worst single sample: 1.4 µg/L | 6/1161 | SYR4 | 2012–2019 |
| Chloroform | 0.5520 µg/L No EPA limit set
worst single sample: 0.5600 µg/L | 5/434 | SYR4 | 2012–2019 |
| 1,1,2-Trichloroethane | 0.6685 µg/L 13% of the EPA limit 5 µg/L
worst single sample: 0.6700 µg/L | 4/1161 | SYR4 | 2012–2019 |
| Carbon Tetrachloride | 0.8790 µg/L 18% of the EPA limit 5 µg/L
worst single sample: 0.9100 µg/L | 3/1161 | SYR4 | 2012–2019 |
| Heptachlor Epoxide | 0.0273 µg/L 14% of the EPA limit 0.2000 µg/L
worst single sample: 0.0280 µg/L | 3/102 | SYR4 | 2012–2019 |
| 1,1,1-Trichloroethane | 0.5000 µg/L 0.3% of the EPA limit 200 µg/L | 2/1161 | SYR4 | 2012–2019 |
| Nitrite | 2473 µg/L 247% of the EPA limit, at the 95th percentile of samples — 1000 µg/L
worst single sample: 2480 µg/L | 2/99 | SYR4 | 2012–2019 |
| Selenium | 5.815 µg/L 12% of the EPA limit 50 µg/L
worst single sample: 6 µg/L | 2/100 | SYR4 | 2012–2019 |
| Beryllium, Total | 10 µg/L 250% of the EPA limit, at the 95th percentile of samples — 4 µg/L | 1/100 | SYR4 | 2012–2019 |
| Cyanide | 16.8 µg/L 8.4% of the EPA limit 200 µg/L | 1/100 | SYR4 | 2012–2019 |
| Chlordane | 0.2100 µg/L 11% of the EPA limit 2 µg/L | 1/99 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 0.6000 µg/L 10% of the EPA limit 6 µg/L | 1/90 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 0.2010 pCi/L 1.3% of the EPA limit 15 pCi/L | 1/18 | SYR4 | 2013–2019 |
| Mercury | 0.5900 µg/L 30% of the EPA limit 2 µg/L | 1/100 | SYR4 | 2012–2019 |
| Vinyl Chloride | 1.1 µg/L 55% of the EPA limit 2 µg/L | 1/1161 | SYR4 | 2012–2019 |
78 contaminants tested, none detected
1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneChlorobenzeneCadmiumCarbofuranChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDibromoacetic AcidDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHexachlorocyclopentadieneLassoMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneThallium, TotalTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Wa of Great Neck North
Is Wa of Great Neck North tap water safe to drink?
EPA monitoring detected 34 contaminants in Wa of Great Neck North'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 Wa of Great Neck North's water?
EPA monitoring detected Trichloroethylene, Tetrachloroethylene, cis-1,2-Dichloroethylene, Nitrate, 1,1-Dichloroethylene, and others. The full list with the level and data source for each is above.
How many people does Wa of Great Neck North serve?
Wa of Great Neck North reports serving 31,400 people in New York, per its EPA record.
Has Wa of Great Neck North had any water quality violations?
The EPA has 13 violations on file for Wa of Great Neck North, of which 2 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.