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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Hillview Water Company-oakhurst/sierra Lakes

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
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017ND90ND
2018ND140ND
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
2017-08-015810-017-1455ND
2017-08-155810-039-1555ND
2017-08-155810-040-1608ND
2017-08-155810-041-1626ND
2017-09-135810-030-0913ND
2017-09-135810-031-0931ND
2017-09-135810-032-1000ND
2017-09-135810-033-0950ND
2017-09-135810-034-0850ND
2018-04-305810-047-1410ND
2018-04-305810-048-1432ND
2018-04-305810-046-1410ND
2018-07-105810-047-1445ND
2018-07-105810-048-1418ND
2018-07-105810-007-0902ND
2018-07-105810-046-1325ND
2018-07-105810-028-1615ND
2018-07-105810-024-1515ND
2018-07-255810-010-1025ND
2018-07-255810-009-1000ND
2018-10-105810-048-1041ND
2018-10-105810-046-0925ND
2018-10-105810-047-1002ND
2019-01-085810-047-1315ND
2019-01-085810-046-1140ND
2019-01-085810-048-1335ND
2019-04-245810-047-0908ND
2019-04-245810-046-0855ND
2019-04-245810-048-0925ND
2019-07-315810-047-1021ND
2019-07-315810-046-0828ND
2019-07-315810-048-1034ND