Dalapon
City of Ukiah
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-07-08 | 9590-028-1400 | ND |
| 2016-07-20 | 9590-029-1141 | ND |
| 2016-07-26 | 9590-004-1430 | ND |
| 2016-07-29 | 1610-032-1345 | ND |
| 2016-09-13 | 1610-033-1110 | ND |
| 2017-07-26 | 1610-028-1040 | ND |
| 2019-07-31 | 1610-004-0830 | ND |
| 2019-07-31 | 1610-029-1400 | ND |
| 2019-07-31 | 1610-032-0905 | ND |
| 2019-09-03 | 1610-033-1045 | ND |