Dalapon
Wellington, Town of
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
26
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | 0.720 ppb | 5 | 2 | ND - 1.90 ppb |
| 2016 | 0.480 ppb | 5 | 2 | ND - 1.40 ppb |
| 2017 | 0.438 ppb | 8 | 3 | ND - 1.20 ppb |
| 2018 | 0.325 ppb | 4 | 1 | ND - 1.30 ppb |
| 2019 | 0.275 ppb | 4 | 1 | ND - 1.10 ppb |
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 |
|---|---|
| 2015-03-10 | ND |
| 2015-03-10 | ND |
| 2015-06-16 | 1.70 ppb |
| 2015-06-16 | ND |
| 2015-10-01 | 1.90 ppb |
| 2016-01-19 | 1.40 ppb |
| 2016-05-05 | 1.000 ppb |
| 2016-08-03 | ND |
| 2016-08-03 | ND |
| 2016-10-21 | ND |
| 2017-01-27 | 1.20 ppb |
| 2017-04-11 | 1.20 ppb |
| 2017-04-26 | ND |
| 2017-05-10 | ND |
| 2017-07-05 | 1.10 ppb |
| 2017-07-05 | ND |
| 2017-09-20 | ND |
| 2017-10-04 | ND |
| 2018-01-09 | ND |
| 2018-04-04 | ND |
| 2018-07-10 | 1.30 ppb |
| 2018-10-30 | ND |
| 2019-01-30 | ND |
| 2019-04-22 | ND |
| 2019-07-16 | 1.10 ppb |
| 2019-10-30 | ND |