Dalapon
North Penn Water Authority
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
30
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 | 22 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 8 | 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 |
|---|---|---|
| 2020-04-01 | 22022931.00 | ND |
| 2020-04-01 | 22023050.00 | ND |
| 2020-04-01 | 22023020.00 | ND |
| 2020-04-01 | 22022960.00 | ND |
| 2020-04-01 | 22022990.00 | ND |
| 2020-04-01 | 22023128.00 | ND |
| 2020-04-13 | 22023342.00 | ND |
| 2020-04-13 | 22023312.00 | ND |
| 2020-04-13 | 22023282.00 | ND |
| 2020-04-13 | 22023252.00 | ND |
| 2020-05-04 | 22215384.00 | ND |
| 2020-07-06 | 22607326.00 | ND |
| 2020-07-06 | 22607356.00 | ND |
| 2020-07-06 | 22607386.00 | ND |
| 2020-07-06 | 22607296.00 | ND |
| 2020-07-06 | 22608055.00 | ND |
| 2020-08-10 | 22799606.00 | ND |
| 2020-08-10 | 22799576.00 | ND |
| 2020-08-10 | 22799486.00 | ND |
| 2020-08-12 | 22799546.00 | ND |
| 2020-08-12 | 22799516.00 | ND |
| 2020-08-31 | 22999385.00 | ND |
| 2023-04-12 | 28702832.00 | ND |
| 2023-04-12 | 28702830.00 | ND |
| 2023-04-12 | 28702829.00 | ND |
| 2023-04-12 | 28702831.00 | ND |
| 2023-07-19 | 29497999.00 | ND |
| 2023-07-19 | 29498001.00 | ND |
| 2023-07-19 | 29498000.00 | ND |
| 2023-07-19 | 29497998.00 | ND |