Metolachlor ethane sulfonic acid
Status: No national drinking water standard exists
Metolachlor ethane sulfonic acid is one of the degradation products of herbicide metolachlor.
2017-2019:
FOUND
1
states detected
5
utilities detected
1.1 million
people served
States reporting metolachlor ethane sulfonic acid in drinking water
| UTILITIES WITH CONTAMINATION | |||
|---|---|---|---|
| State | Utilities | People Served | |
| New York | 5 | 1,137,108 | |
MORE
LESS
Filtering technologies that reduce metolachlor ethane sulfonic acid
Activated Carbon
Reverse Osmosis
Utilities with the highest amounts of metolachlor ethane sulfonic acid, 2017-2019
ALL UTILITIES
LARGE UTILITIES
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| St James WD | St James, NY | 4 of 4 | 0.0311 ppb | 10,587 |
| Stony Brook Water District | Hauppauge, NY | 4 of 4 | 0.0311 ppb | 4,836 |
| Greenport Village | Greenport, NY | 4 of 4 | 0.0311 ppb | 2,050 |
| Smithtown WD | Kings Park, NY | 4 of 4 | 0.0311 ppb | 19,635 |
| Suffolk County Water Authority* | Bayshore, NY | 4 of 4 | 0.0311 ppb | 1,100,000 |
* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Metolachlor ethane sulfonic acid, but it likely has the contaminant in its water supply.
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| St James WD | St James, NY | 4 of 4 | 0.0311 ppb | 10,587 |
| Smithtown WD | Kings Park, NY | 4 of 4 | 0.0311 ppb | 19,635 |
| Suffolk County Water Authority* | Bayshore, NY | 4 of 4 | 0.0311 ppb | 1,100,000 |
* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Metolachlor ethane sulfonic acid, but it likely has the contaminant in its water supply.