Compliance record
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 |
|---|---|---|---|---|
| TTHM | 48.6 µg/L 61% of the EPA limit 80 µg/L
worst single sample: 59.3 µg/L | 151/152 | SYR4 | 2012–2019 |
| Chloroform | 27.4265 µg/L No EPA limit set
worst single sample: 35.6 µg/L | 150/151 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 20.204 µg/L No EPA limit set
worst single sample: 25.84 µg/L | 150/151 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 30.7875 µg/L 51% of the EPA limit 60 µg/L
worst single sample: 37.75 µg/L | 150/151 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 6.662 µg/L No EPA limit set
worst single sample: 8 µg/L | 150/151 | SYR4 | 2012–2019 |
| Bromodichloromethane | 14.018 µg/L No EPA limit set
worst single sample: 15.9 µg/L | 149/150 | SYR4 | 2012–2019 |
| Dibromochloromethane | 6.782 µg/L No EPA limit set
worst single sample: 13.22 µg/L | 149/150 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 2.049 µg/L No EPA limit set
worst single sample: 2.83 µg/L | 92/151 | SYR4 | 2012–2019 |
| Bromoform | 2.139 µg/L No EPA limit set
worst single sample: 5 µg/L | 47/150 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 6.874 µg/L No EPA limit set
worst single sample: 8.3 µg/L | 29/152 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 1.17 µg/L No EPA limit set | 17/152 | SYR4 | 2012–2019 |
| Lead | 0.0021 mg/L 14% of the EPA limit 0.0150 mg/L | 11/11 | LCR | 2024 |
| Nitrate | 398 µg/L 4% of the EPA limit 10000 µg/L | 8/16 | SYR4 | 2012–2019 |
| Barium | 19.97 µg/L 1% of the EPA limit 2000 µg/L
worst single sample: 20 µg/L | 7/8 | SYR4 | 2012–2019 |
| Fluoride | 840 µg/L 21% of the EPA limit 4000 µg/L | 6/9 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 309.1 µg/L 3.1% of the EPA limit 10000 µg/L
worst single sample: 319 µg/L | 3/4 | SYR4 | 2012–2016 |
| Cyanide | 15 µg/L 7.5% of the EPA limit 200 µg/L | 1/8 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 1.248 pCi/L 25% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2017 |
85 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Tonawanda, Town Water Dept.
Is Tonawanda, Town Water Dept. tap water safe to drink?
EPA monitoring detected 18 contaminants in Tonawanda, Town Water Dept.'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 Tonawanda, Town Water Dept.'s water?
EPA monitoring detected TTHM, Chloroform, Dichloroacetic Acid, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, and others. The full list with the level and data source for each is above.
How many people does Tonawanda, Town Water Dept. serve?
Tonawanda, Town Water Dept. reports serving 72,571 people in New York, per its EPA record.
Has Tonawanda, Town Water Dept. had any water quality violations?
The EPA has no formal drinking-water violations on file for Tonawanda, Town Water Dept..
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.