Dalapon
Johnston County Rural Water District #3
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
36
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 | 6 | 0 | ND |
| 2019 | ND | 9 | 0 | ND |
| 2020 | ND | 7 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
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 |
|---|---|---|
| 2018-08-27 | SDWA-1300561-00 | ND |
| 2018-08-27 | SDWA-1300559-00 | ND |
| 2018-08-27 | SDWA-1300560-00 | ND |
| 2018-10-23 | SDWA-1315734-00 | ND |
| 2018-10-23 | SDWA-1315733-00 | ND |
| 2018-10-23 | SDWA-1315735-00 | ND |
| 2019-01-22 | SDWA-1342781-00 | ND |
| 2019-01-22 | SDWA-1342782-00 | ND |
| 2019-01-22 | SDWA-1342783-00 | ND |
| 2019-05-20 | SDWA-1377752-00 | ND |
| 2019-05-20 | SDWA-1377753-00 | ND |
| 2019-05-20 | SDWA-1377754-00 | ND |
| 2019-08-13 | SDWA-1404302-00 | ND |
| 2019-08-13 | SDWA-1404303-00 | ND |
| 2019-08-13 | SDWA-1404304-00 | ND |
| 2020-02-03 | SDWA-1463310-00 | ND |
| 2020-02-03 | SDWA-1456314-00 | ND |
| 2020-02-03 | SDWA-1456313-00 | ND |
| 2020-02-03 | SDWA-1456312-00 | ND |
| 2020-06-08 | SDWA-1489908-00 | ND |
| 2020-07-27 | SDWA-1500068-00 | ND |
| 2020-12-14 | SDWA-1533189-00 | ND |
| 2021-03-01 | SDWA-1553479-00 | ND |
| 2021-03-01 | SDWA-1553478-00 | ND |
| 2021-03-01 | SDWA-1553458-00 | ND |
| 2021-05-03 | SDWA-1577603-00 | ND |
| 2021-09-01 | SDWA-1609530-00 | ND |
| 2021-10-25 | SDWA-1641939-00 | ND |
| 2022-02-01 | SDWA-1670897-00 | ND |
| 2022-02-01 | SDWA-1670899-00 | ND |
| 2022-04-11 | SDWA-1684864-00 | ND |
| 2022-04-20 | SDWA-1670905-00 | ND |
| 2022-08-17 | SDWA-1722652-00 | ND |
| 2023-12-06 | SDWA-1859269-00 | ND |
| 2023-12-06 | SDWA-1859271-00 | ND |
| 2023-12-06 | SDWA-1859277-00 | ND |