Dinoseb
Cucamonga Valley Water District
Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.
17
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 | 8 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 7 ppb
The legal limit for dinoseb, established in 1992, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-27 | 3761-038-1255 | ND |
| 2014-05-29 | 3761-033-0940 | ND |
| 2014-06-05 | 3761-027-1045 | ND |
| 2014-08-05 | 3761-055-1150 | ND |
| 2014-08-18 | 3761-033-1050 | ND |
| 2014-09-04 | 3761-027-1010 | ND |
| 2014-11-20 | 3761-033-1145 | ND |
| 2014-12-09 | 3761-027-1040 | ND |
| 2015-03-05 | 3761-027-0855 | ND |
| 2015-05-13 | 3761-055-1050 | ND |
| 2015-07-09 | 3761-017-1100 | ND |
| 2015-08-20 | 3761-055-0925 | ND |
| 2015-11-23 | 3761-055-0900 | ND |
| 2016-02-11 | 3761-055-1040 | ND |
| 2016-11-23 | 3761-035-1440 | ND |
| 2017-06-02 | 3761-027-0918 | ND |
| 2019-07-24 | 9588-017-1115 | ND |