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 Monochloroacetic 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 |
|---|---|---|---|
| Midland Boro Muni Auth | Midland | PA | 1955.37 µg/L No EPA limit set |
| Reynolds Water Company | Greenville | PA | 1312 µg/L No EPA limit set |
| North Sewickley Mun Water Auth | Beaver Falls | PA | 1300 µg/L No EPA limit set |
| Johnsonburg Municipal Auth | Johnsonburg | PA | 847 µg/L No EPA limit set |
| Bear Valley Joint Auth | St Thomas | PA | 800.432 µg/L No EPA limit set |
| Monaca Boro Water Dept | Monaca | PA | 630 µg/L No EPA limit set |
| Petroleum Valley Rwa | Petrolia | PA | 318.5 µg/L No EPA limit set |
| Jackson Twp Water Auth | Johnstown | PA | 277.5 µg/L No EPA limit set |
| Dallas, Town of | Dallas | NC | 180.4 µg/L No EPA limit set |
| Masontown Muni Water Works | Masontown | PA | 147.5 µg/L No EPA limit set |
| Meyersdale Muni Auth | Meyersdale | PA | 144.2 µg/L No EPA limit set |
| Bodega Water Company | Bodega | CA | 128.2 µg/L No EPA limit set |
| Bear Springs Trails Subdivision | Pipe Creek | TX | 120.35 µg/L No EPA limit set |
| Huston Twp Muni Auth | Penfield | PA | 120 µg/L No EPA limit set |
| Longton, City of | Longton | KS | 120 µg/L No EPA limit set |
| Town of Plain Dealing Water System | Plain Dealing | LA | 117.15 µg/L No EPA limit set |
| Onalaska Waterworks | Onalaska | WI | 109.775 µg/L No EPA limit set |
| Icmsa Crooked Creek | Indiana | PA | 97.7 µg/L No EPA limit set |
| Village of Mermentau Water System | Mermentau | LA | 97 µg/L No EPA limit set |
| Wildwood Water System | Fairfield | TX | 93.6 µg/L No EPA limit set |
| Holtville, City of | Holtville | CA | 93.35 µg/L No EPA limit set |
| Fond Du Lac Waterworks | — | — | 93 µg/L No EPA limit set |
| Seneca Sanitary Dist No 1 | Seneca | WI | 92.6075 µg/L No EPA limit set |
| Platte City Pws | Platte City | MO | 92.3295 µg/L No EPA limit set |
| Severy, City of | Severy | KS | 91.8 µg/L No EPA limit set |
Frequently asked questions about Monochloroacetic Acid
What is Monochloroacetic Acid in drinking water?
Monochloroacetic 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 Monochloroacetic Acid?
The EPA has not set a numeric Maximum Contaminant Level for Monochloroacetic Acid. It is still measured and reported, so levels can be compared between suppliers.
How common is Monochloroacetic Acid in US tap water?
Of the 28,686 water suppliers with results on file, 10,754 detected Monochloroacetic Acid — 37.5% of those tested.