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EWG's Tap Water Database — 2021 UPDATE

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Trifluralin

California Water Service (CWS) - Los Altos Suburban

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND250ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

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
2014-01-085810-008-1125ND
2014-01-155810-002-1215ND
2014-01-155810-016-1142ND
2014-02-105810-010-1200ND
2014-02-195810-018-0952ND
2014-02-275810-023-1122ND
2014-03-045810-015-1230ND
2014-03-055810-011-1136ND
2014-04-085810-020-1115ND
2014-04-095810-021-1346ND
2014-04-175810-022-1230ND
2014-05-145810-037-1355ND
2014-05-145810-023-1247ND
2014-06-045810-024-1036ND
2014-06-045810-028-0933ND
2014-06-045810-029-0850ND
2014-06-045810-032-1140ND
2014-06-045810-035-1104ND
2014-07-025810-016-1048ND
2014-07-025810-002-1005ND
2014-07-095810-008-1022ND
2014-08-115810-018-1013ND
2014-08-115810-010-1057ND
2014-09-095810-015-1140ND
2014-09-095810-011-1318ND