What the EPA limit means
No federal limit
The EPA has not set an enforceable numeric limit for this contaminant.
—
Health goal (MCLG) — the level with no known health effect. It is a goal, not a legal limit, and is often zero for carcinogens.
SYR4
Where these measurements come from. Hover the tag for the EPA programme and years.
Where Trichloroacetic Acid was found
The water suppliers reporting the highest levels, worst first. For lead and copper that is the 90th-percentile result the action level is written against; for Six-Year Review data, the 95th percentile of each system's samples.
| Supplier | City | State | Level vs EPA limit |
|---|---|---|---|
| Creswell Heights Jt Auth | South Heights | PA | 1616.38 µg/L No EPA limit set |
| Mcalisterville Area Joint Auth | Mc Alisterville | PA | 1598.7 µg/L No EPA limit set |
| Brighton Twp Muni Auth | Beaver | PA | 1216 µg/L No EPA limit set |
| Monaca Boro Water Dept | Monaca | PA | 1000 µg/L No EPA limit set |
| Beaver Boro Muni Auth | Beaver | PA | 970 µg/L No EPA limit set |
| Conneaut Lake Park Water | Harmonsburg | PA | 760.05 µg/L No EPA limit set |
| Saegertown Mhp | — | FL | 640 µg/L No EPA limit set |
| Vallenar View Mobile Home Park | Ketchikan | AK | 474 µg/L No EPA limit set |
| Murphy Hill Ws #02 | Aromas | CA | 350 µg/L No EPA limit set |
| Hudson Gaars Mill Water System | Dodson | LA | 346 µg/L No EPA limit set |
| Thorne Bay, City of | Thorne Bay | AK | 250 µg/L No EPA limit set |
| Sandy Point 480 Water System | Campti | LA | 243.25 µg/L No EPA limit set |
| City of Nome | — | TX | 240.6 µg/L No EPA limit set |
| Village of Sikes Water System | Sikes | LA | 220.2 µg/L No EPA limit set |
| Tatitlek Water System | Tatitlek | AK | 194 µg/L No EPA limit set |
| Buckland Water System | Buckland | AK | 191.5 µg/L No EPA limit set |
| Fairview Union Water System | Coushatta | LA | 191.1 µg/L No EPA limit set |
| Central Bridge Water District | Schoharie | NY | 188.22 µg/L No EPA limit set |
| Longton, City of | Longton | KS | 182 µg/L No EPA limit set |
| City of Strawn | — | TX | 176.4 µg/L No EPA limit set |
| Asher Util Dev Auth | Asher | OK | 175.9 µg/L No EPA limit set |
| Rye Town of | — | CO | 170.89 µg/L No EPA limit set |
| Severy, City of | Severy | KS | 162 µg/L No EPA limit set |
| Mannsville Public Works Authority | Mannsville | OK | 155 µg/L No EPA limit set |
| Elk City, City of | Elk City | KS | 152 µg/L No EPA limit set |
Frequently asked questions about Trichloroacetic Acid
What is Trichloroacetic Acid in drinking water?
Trichloroacetic Acid is monitored in US public drinking water under EPA rules. Each supplier's result is reported to the EPA and published here with its source and period.
Does the EPA limit Trichloroacetic Acid?
The EPA has not set a numeric Maximum Contaminant Level for Trichloroacetic Acid. It is still measured and reported, so levels can be compared between suppliers.
How common is Trichloroacetic Acid in US tap water?
Of the 28,693 water suppliers with results on file, 17,340 detected Trichloroacetic Acid — 60.4% of those tested.