Dalapon
South Middleton Twp Water Authority
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
13
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 6 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 1.43 ppb | 7 | 1 | ND - 10.00 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 |
|---|---|---|
| 2020-05-14 | 22355258.00 | ND |
| 2020-05-14 | 22355287.00 | ND |
| 2020-05-14 | 22355316.00 | ND |
| 2020-08-13 | 22942234.00 | ND |
| 2020-08-13 | 22942261.00 | ND |
| 2020-08-13 | 22942291.00 | ND |
| 2023-05-25 | 29247647.00 | ND |
| 2023-05-25 | 29247648.00 | ND |
| 2023-05-25 | 29247649.00 | 10.00 ppb |
| 2023-08-15 | 29644743.00 | ND |
| 2023-08-15 | 29644741.00 | ND |
| 2023-08-15 | 29644742.00 | ND |
| 2023-11-16 | 30196685.00 | ND |