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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Terra Bella Irrigation District - Tbt

Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.

MORE ABOUT THIS CONTAMINANT

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND50ND
2016ND20ND
2017ND30ND
2018ND90ND
2019ND90ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for alachlor, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-075810-027-0930ND
2014-05-195810-028-1150ND
2014-08-185810-014-1219ND
2014-08-185810-004-1208ND
2015-08-175810-009-1147ND
2015-08-175810-016-1133ND
2015-08-175810-020-1137ND
2015-08-175810-024-1232ND
2015-08-175810-002-1142ND
2016-08-255810-025-1300ND
2016-11-145810-013-1406ND
2017-09-065810-004-1240ND
2017-09-065810-013-1230ND
2017-09-065810-014-1251ND
2018-09-245810-027-1445ND
2018-09-245810-033-1510ND
2018-09-245810-024-1415ND
2018-09-245810-020-1342ND
2018-09-245810-016-1335ND
2018-09-245810-009-1354ND
2018-09-245810-002-1345ND
2018-12-275810-027-1250ND
2018-12-275810-033-1230ND
2019-02-265810-027-1318ND
2019-02-265810-033-1300ND
2019-05-105810-027-1310ND
2019-05-105810-033-1328ND
2019-08-295810-025-1300ND
2019-08-295810-027-1340ND
2019-08-295810-033-1328ND
2019-11-215810-027-1338ND
2019-11-215810-033-1315ND