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EWG's Tap Water Database — 2021 UPDATE

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Trifluralin

Gonzales County Water Supply Corporation

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.

MORE ABOUT THIS CONTAMINANT

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND60ND
2016ND60ND
2017ND50ND
2018ND60ND
2019ND60ND

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
2014-06-05AC56115ND
2014-06-05AC56117ND
2014-06-05AC56116ND
2014-06-05AC56112ND
2014-06-05AC56119ND
2014-09-05AC66108ND
2015-02-04AC79332ND
2015-02-04AC79333ND
2015-02-04AC79349ND
2015-02-04AC79331ND
2015-02-04AC79334ND
2015-07-22AD00677ND
2016-01-19AD18758ND
2016-01-19AD18756ND
2016-01-19AD18754ND
2016-01-19AD18753ND
2016-01-19AD18755ND
2016-05-02AD34906ND
2017-03-13AD75568ND
2017-03-13AD75566ND
2017-03-13AD75567ND
2017-03-13AD75569ND
2017-04-26AD81301ND
2018-02-08AE13124ND
2018-03-12AE18013ND
2018-03-12AE18016ND
2018-03-12AE18015ND
2018-03-12AE18012ND
2018-12-12AE48728ND
2019-03-05AE57242ND
2019-03-05AE57240ND
2019-03-05AE57236ND
2019-03-05AE57237ND
2019-03-05AE57238ND
2019-03-05AE57239ND