Dalapon
Yosemite Spring Park Utility Company
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
14
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 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 3 | 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 |
|---|---|---|
| 2016-11-23 | 5802-002-1305 | ND |
| 2016-11-23 | 5802-003-1350 | ND |
| 2017-12-06 | 5802-017-0835 | ND |
| 2017-12-06 | 5802-021-1435 | ND |
| 2017-12-06 | 5802-023-1150 | ND |
| 2017-12-06 | 5802-025-1045 | ND |
| 2017-12-13 | 5802-013-1430 | ND |
| 2017-12-13 | 5802-020-1235 | ND |
| 2017-12-13 | 5802-027-1310 | ND |
| 2017-12-13 | 5802-043-1100 | ND |
| 2018-01-10 | 5802-016-1400 | ND |
| 2018-12-19 | 5802-026-1350 | ND |
| 2018-12-26 | 5802-018-1325 | ND |
| 2019-12-20 | 5802-002-1106 | ND |