Dalapon
Wrentham Water Division
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
13
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 | ND | 2 | 0 | ND |
| 2015 | 0.250 ppb | 4 | 1 | ND - 1.000 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 6 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|
| 2014-03-11 | ND |
| 2014-08-12 | ND |
| 2015-02-10 | 1.000 ppb |
| 2015-05-12 | ND |
| 2015-09-28 | ND |
| 2015-11-16 | ND |
| 2017-03-07 | ND |
| 2018-06-13 | ND |
| 2018-06-13 | ND |
| 2018-06-13 | ND |
| 2018-10-24 | ND |
| 2018-10-24 | ND |
| 2018-10-24 | ND |