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.
| Supplier | City | State | Level vs EPA limit |
|---|---|---|---|
| Mcalisterville Area Joint Auth | Mc Alisterville | PA | 3180 µg/L No EPA limit set |
| Philipsburg Town of | Philipsburg | MT | 2901 µg/L No EPA limit set |
| Creswell Heights Jt Auth | South Heights | PA | 1900 µg/L No EPA limit set |
| Brighton Twp Muni Auth | Beaver | PA | 1300 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 | 800 µg/L No EPA limit set |
| Saegertown Mhp | Oveido | FL | 640 µg/L No EPA limit set |
| Vallenar View Mobile Home Park | Ketchikan | AK | 530 µg/L No EPA limit set |
| El Toro Water District | Lake Forest | CA | 486 µg/L No EPA limit set |
| Hudson Gaars Mill Water System | Dodson | LA | 428 µg/L No EPA limit set |
| Murphy Hill Ws #02 | Aromas | CA | 350 µg/L No EPA limit set |
| City of Nome | Nome | TX | 331.3 µg/L No EPA limit set |
| Sandy Point 480 Water System | Campti | LA | 316 µg/L No EPA limit set |
| Fairview Union Water System | Coushatta | LA | 272 µg/L No EPA limit set |
| Thorne Bay, City of | Thorne Bay | AK | 270 µg/L No EPA limit set |
| City of Gonzales | Gonzales | TX | 248.7 µg/L No EPA limit set |
| Weleetka Public Works Authority | Weleetka | OK | 246 µg/L No EPA limit set |
| Village of Sikes Water System | Sikes | LA | 242 µg/L No EPA limit set |
| Central Bridge Water District | Schoharie | NY | 240 µg/L No EPA limit set |
| Morningside Heights Wd / Erwin | Erwin | NY | 240 µg/L No EPA limit set |
| Tatitlek Water System | Tatitlek | AK | 230 µg/L No EPA limit set |
| Swanton Village Water | Swanton | VT | 230 µg/L No EPA limit set |
| City of Strawn | Strawn | TX | 228 µg/L No EPA limit set |
| Otoe-Missouria Tribe | Red Rock | OK | 221 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.