Dalapon
Harris County Municipal Utility District 109
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
10
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 | 3 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 | Lab ID | Result |
|---|---|---|
| 2014-04-30 | AC52425 | ND |
| 2014-04-30 | AC52427 | ND |
| 2014-07-30 | AC61657 | ND |
| 2015-07-06 | AC98422 | ND |
| 2016-09-25 | AD51039 | ND |
| 2017-01-06 | AD63716 | ND |
| 2017-04-21 | AD80763 | ND |
| 2017-05-31 | AD86133 | ND |
| 2018-07-26 | AE34632 | ND |
| 2019-05-22 | AE67612 | ND |