Dalapon
El Sauz Water Supply Corporation
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
49
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 | ND | 8 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
| 2020 | 0.122 ppb | 9 | 1 | ND - 1.10 ppb |
| 2021 | ND | 8 | 0 | ND |
| 2022 | 0.150 ppb | 8 | 1 | ND - 1.20 ppb |
| 2023 | 0.325 ppb | 8 | 1 | ND - 2.60 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 |
|---|---|---|
| 2018-03-06 | AE16921 | ND |
| 2018-03-06 | AE16916 | ND |
| 2018-05-17 | AE26748 | ND |
| 2018-05-17 | AE26745 | ND |
| 2018-08-30 | AE38915 | ND |
| 2018-08-30 | AE38916 | ND |
| 2018-12-04 | AE47756 | ND |
| 2018-12-04 | AE47767 | ND |
| 2019-02-06 | AE53418 | ND |
| 2019-02-06 | AE53420 | ND |
| 2019-06-11 | AE69972 | ND |
| 2019-06-11 | AE69982 | ND |
| 2019-09-11 | AE83183 | ND |
| 2019-09-11 | AE83182 | ND |
| 2019-12-02 | AE90994 | ND |
| 2019-12-02 | AE90996 | ND |
| 2020-02-26 | AF00010 | ND |
| 2020-02-26 | AF00011 | ND |
| 2020-05-20 | AF12329 | 1.10 ppb |
| 2020-05-20 | AF12357 | ND |
| 2020-06-16 | AF15782 | ND |
| 2020-08-26 | AF25600 | ND |
| 2020-08-26 | AF25602 | ND |
| 2020-12-01 | AF36196 | ND |
| 2020-12-01 | AF36188 | ND |
| 2021-03-03 | AF45070 | ND |
| 2021-03-03 | AF45087 | ND |
| 2021-05-25 | AF55277 | ND |
| 2021-05-25 | AF55278 | ND |
| 2021-08-12 | AF66064 | ND |
| 2021-08-12 | AF66067 | ND |
| 2021-12-22 | AF79258 | ND |
| 2021-12-22 | AF79260 | ND |
| 2022-02-08 | AF84236 | ND |
| 2022-02-08 | AF84237 | ND |
| 2022-06-08 | AG00087 | ND |
| 2022-06-08 | AG00082 | ND |
| 2022-09-09 | AG12375 | ND |
| 2022-09-09 | AG12378 | ND |
| 2022-12-08 | AG21297 | ND |
| 2022-12-08 | AG21303 | 1.20 ppb |
| 2023-02-23 | AG30189 | ND |
| 2023-02-23 | AG30215 | ND |
| 2023-05-24 | AG41869 | ND |
| 2023-05-24 | AG41902 | ND |
| 2023-09-11 | AG55505 | ND |
| 2023-09-11 | AG55533 | ND |
| 2023-11-17 | AG64278 | ND |
| 2023-11-17 | AG64279 | 2.60 ppb |