Dalapon
Westborough Water Department
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
19
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 9 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 200 ppb
The legal limit for dalapon, established in 1992, was based on a toxicity study in laboratory animals published in 1960.
ppb = parts per billion
All test results
| Date | Result |
|---|---|
| 2016-05-13 | ND |
| 2016-05-13 | ND |
| 2016-05-13 | ND |
| 2016-05-25 | ND |
| 2016-12-21 | ND |
| 2016-12-21 | ND |
| 2016-12-21 | ND |
| 2016-12-21 | ND |
| 2017-08-31 | ND |
| 2017-11-14 | ND |
| 2019-06-21 | ND |
| 2019-06-21 | ND |
| 2019-06-21 | ND |
| 2019-07-24 | ND |
| 2019-12-18 | ND |
| 2019-12-18 | ND |
| 2019-12-30 | ND |
| 2019-12-30 | ND |
| 2019-12-30 | ND |