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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

California Water Service Company - Dixon

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

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND90ND
2016ND30ND
2017N/A00N/A
2018ND40ND
2019ND20ND

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
2014-09-165810-005-1052ND
2014-10-165810-008-1445ND
2014-10-295810-006-0840ND
2014-10-295810-002-1007ND
2014-12-175810-007-1105ND
2014-12-175810-005-1608ND
2014-12-175810-003-1015ND
2014-12-305810-004-1152ND
2014-12-305810-002-1152ND
2015-01-055810-006-1351ND
2015-01-215810-002-0937ND
2015-01-215810-008-1103ND
2015-03-039590-002-0902ND
2015-03-039590-007-0953ND
2015-03-259590-008-0850ND
2015-03-319590-009-1057ND
2015-04-159590-007-1445ND
2015-05-209590-003-0910ND
2016-04-069590-017-1123ND
2016-06-139590-020-1700ND
2016-07-209590-017-1340ND
2018-04-049590-002-0918ND
2018-04-059590-008-1337ND
2018-07-029590-002-1500ND
2018-07-109590-008-1540ND
2019-04-029590-017-1547ND
2019-07-029590-017-1330ND