Dalapon
Jefferson Parish
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
48
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 |
|---|---|---|---|---|
| 2018 | 1.30 ppb | 12 | 6 | ND - 2.80 ppb |
| 2019 | ND | 12 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | 0.195 ppb | 6 | 2 | ND - 0.600 ppb |
| 2023 | 0.198 ppb | 6 | 2 | ND - 0.630 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-03-15 | 35380393003 | ND |
| 2018-03-15 | 35380393001 | ND |
| 2018-03-15 | 35380393002 | ND |
| 2018-03-15 | 35380393003 | ND |
| 2018-03-15 | 35380393002 | ND |
| 2018-03-15 | 35380393001 | ND |
| 2018-08-15 | 35411635002 | 2.80 ppb |
| 2018-08-15 | 35411635001 | 2.50 ppb |
| 2018-08-15 | 35411635003 | 2.50 ppb |
| 2018-08-15 | 35411635003 | 2.50 ppb |
| 2018-08-15 | 35411635002 | 2.80 ppb |
| 2018-08-15 | 35411635001 | 2.50 ppb |
| 2019-02-27 | 35451094001 | ND |
| 2019-02-27 | 35451093001 | ND |
| 2019-02-27 | 35451088001 | ND |
| 2019-02-27 | 35451088001 | ND |
| 2019-02-27 | 35451093001 | ND |
| 2019-02-27 | 35451094001 | ND |
| 2019-08-01 | 35486654001 | ND |
| 2019-08-01 | 35486656001 | ND |
| 2019-08-01 | 35486659001 | ND |
| 2019-08-01 | 35486656001 | ND |
| 2019-08-01 | 35486654001 | ND |
| 2019-08-01 | 35486659001 | ND |
| 2020-03-26 | 35540021001 | ND |
| 2020-03-26 | 35540015001 | ND |
| 2020-03-26 | 35540013001 | ND |
| 2020-10-08 | 35583706001 | ND |
| 2020-10-08 | 35583707001 | ND |
| 2020-10-08 | 35583709001 | ND |
| 2021-01-28 | 35608080001 | ND |
| 2021-01-28 | 35608082001 | ND |
| 2021-01-28 | 35608086001 | ND |
| 2021-10-14 | 35671095001 | ND |
| 2021-10-14 | 35671096001 | ND |
| 2021-10-14 | 35671098001 | ND |
| 2022-01-25 | 35692991001 | ND |
| 2022-01-25 | 35692990001 | ND |
| 2022-01-25 | 35692989001 | ND |
| 2022-07-27 | 35735696001 | ND |
| 2022-07-27 | 35735695001 | 0.600 ppb |
| 2022-07-27 | 35735694001 | 0.570 ppb |
| 2023-01-11 | 35772258001 | ND |
| 2023-01-11 | 35772259001 | ND |
| 2023-01-11 | 35772260001 | ND |
| 2023-11-16 | 35842431001 | 0.560 ppb |
| 2023-11-16 | 35842438001 | ND |
| 2023-11-16 | 35842442001 | 0.630 ppb |