Dalapon
Lutcher Waterworks
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
20
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 | 18.0 ppb | 2 | 2 | 18.0 ppb |
| 2015 | ND | 4 | 0 | ND |
| 2016 | 0.495 ppb | 4 | 2 | ND - 0.990 ppb |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 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 |
|---|---|---|
| 2014-02-17 | AD89144 | 18.0 ppb |
| 2014-02-17 | AD89144 | 18.0 ppb |
| 2015-06-08 | 35192498005 | ND |
| 2015-06-08 | 35192498005 | ND |
| 2015-09-29 | 35209762003 | ND |
| 2015-09-29 | 35209762003 | ND |
| 2016-03-16 | 35234654002 | ND |
| 2016-03-16 | 35234654002 | ND |
| 2016-09-20 | 35266509002 | 0.990 ppb |
| 2016-09-20 | 35266509002 | 0.990 ppb |
| 2017-01-18 | 35289822004 | ND |
| 2017-01-18 | 35289822004 | ND |
| 2017-10-24 | 35344091004 | ND |
| 2017-10-24 | 35344091004 | ND |
| 2018-08-23 | 35413208001 | ND |
| 2018-08-23 | 35413208001 | ND |
| 2019-02-12 | 35447884001 | ND |
| 2019-02-12 | 35447884001 | ND |
| 2019-08-21 | 35492540001 | ND |
| 2019-08-21 | 35492540001 | ND |