Dalapon
City of Billings
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
10
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 2 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-02-10 | B14020492-001D | ND |
| 2014-08-11 | B14081054-001A | ND |
| 2017-02-08 | B17020497-002A | ND |
| 2017-05-08 | B17051019-001A | ND |
| 2017-08-07 | B17081099-001A | ND |
| 2018-02-05 | B18020545-001D | ND |
| 2018-05-07 | B18051134-001D | ND |
| 2018-08-06 | B18080949-001D | ND |
| 2018-08-06 | B18080949-002C | ND |
| 2019-02-11 | B19020608-001D | ND |