Dalapon
Collegeville Trappe Joint Public Works Department
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
40
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 | 20 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 20 | 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 |
|---|---|---|
| 2020-05-04 | 22213258.00 | ND |
| 2020-05-04 | 22213228.00 | ND |
| 2020-05-04 | 22213288.00 | ND |
| 2020-05-18 | 22213525.00 | ND |
| 2020-05-18 | 22213515.00 | ND |
| 2020-05-18 | 22213555.00 | ND |
| 2020-05-18 | 22213485.00 | ND |
| 2020-06-08 | 22414080.00 | ND |
| 2020-06-08 | 22414140.00 | ND |
| 2020-06-08 | 22414110.00 | ND |
| 2020-08-03 | 22797484.00 | ND |
| 2020-08-03 | 22797260.00 | ND |
| 2020-08-03 | 22797349.00 | ND |
| 2020-08-03 | 22797289.00 | ND |
| 2020-08-03 | 22797319.00 | ND |
| 2020-08-17 | 22797865.00 | ND |
| 2020-08-17 | 22797836.00 | ND |
| 2020-08-17 | 22797807.00 | ND |
| 2020-08-17 | 22797777.00 | ND |
| 2020-08-17 | 22797748.00 | ND |
| 2023-04-17 | 28700774.00 | ND |
| 2023-04-17 | 28700771.00 | ND |
| 2023-04-17 | 28700776.00 | ND |
| 2023-04-17 | 28700775.00 | ND |
| 2023-04-17 | 28700773.00 | ND |
| 2023-04-17 | 28700772.00 | ND |
| 2023-05-01 | 28898900.00 | ND |
| 2023-05-01 | 28898899.00 | ND |
| 2023-05-01 | 28898898.00 | ND |
| 2023-05-01 | 28898901.00 | ND |
| 2023-07-24 | 29495676.00 | ND |
| 2023-07-24 | 29495678.00 | ND |
| 2023-07-24 | 29495677.00 | ND |
| 2023-07-24 | 29495675.00 | ND |
| 2023-07-24 | 29495674.00 | ND |
| 2023-08-07 | 29495681.00 | ND |
| 2023-08-07 | 29495682.00 | ND |
| 2023-08-07 | 29495680.00 | ND |
| 2023-08-07 | 29495679.00 | ND |
| 2023-08-21 | 29496174.00 | ND |