Trifluralin
Norwalk Water Department
Trifluralin is a herbicide that is used on food crops and non-agricultural lands. It was banned in Europe in the late 2000s, primarily due to its ecological toxicity.
13
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 6 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 4 ppb
The EWG Health Guideline of 4 ppb for trifluralin was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-04-23 | 9588-002-1041 | ND |
| 2015-04-23 | 9588-003-1024 | ND |
| 2015-04-23 | 9588-012-0947 | ND |
| 2015-07-30 | 9588-002-1044 | ND |
| 2015-07-30 | 9588-003-1015 | ND |
| 2015-07-30 | 9588-012-0928 | ND |
| 2018-04-11 | 9588-002-0953 | ND |
| 2018-04-11 | 9588-003-0930 | ND |
| 2018-07-25 | 9588-002-1000 | ND |
| 2018-07-25 | 9588-003-0935 | ND |
| 2019-05-24 | 9588-012-0920 | ND |
| 2019-07-25 | 9588-012-0930 | ND |
| 2019-10-25 | 9588-012-0930 | ND |