Dalapon
Pointe A La Hache Water System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
20
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 | 15.5 ppb | 2 | 2 | 15.5 ppb |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | 1.000 ppb | 2 | 2 | 1.000 ppb |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-01-21 | AD88467 | 15.5 ppb |
| 2014-01-21 | AD88467 | 15.5 ppb |
| 2015-03-30 | 35181567004 | ND |
| 2015-03-30 | 35181567004 | ND |
| 2015-10-06 | 35211176006 | ND |
| 2015-10-06 | 35211176006 | ND |
| 2016-02-17 | 35230188002 | ND |
| 2016-02-17 | 35230188002 | ND |
| 2016-12-08 | 35282294004 | ND |
| 2016-12-08 | 35282294004 | ND |
| 2017-02-16 | 35296025004 | 1.000 ppb |
| 2017-02-16 | 35296025004 | 1.000 ppb |
| 2018-03-06 | 35378294001 | ND |
| 2018-03-06 | 35378294001 | ND |
| 2018-09-24 | 35419981001 | ND |
| 2018-09-24 | 35419981001 | ND |
| 2019-02-14 | 35448746001 | ND |
| 2019-02-14 | 35448746001 | ND |
| 2019-09-24 | 35500297001 | ND |
| 2019-09-24 | 35500297001 | ND |