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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Keene Water Department

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

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2014-07-161407-14072-001ND
2014-11-121411-23739-001ND
2014-11-121411-23764-001ND
2014-11-121411-23770-001ND
2014-12-111412-25528-001ND
2015-07-161507-14513-001ND
2015-10-211510-23052-001ND
2015-10-211510-23054-001ND
2015-10-211510-23056-001ND
2015-10-211510-23046-001ND
2016-07-131607-15148-001ND
2016-10-261610-24748-001ND
2016-10-261610-24757-001ND
2016-11-021611-25392-001ND
2016-11-091611-25942-001ND
2017-07-121707-15735-001ND
2017-10-181710-25339-001ND
2017-10-181710-25350-001ND
2017-10-181710-25362-001ND
2017-12-061712-29271-001ND
2018-07-251807-18364-001ND
2018-10-171810-27364-001ND
2018-10-171810-27349-001ND
2018-10-171810-27331-001ND
2018-12-111812-32023-001ND
2019-07-311908-18886-004ND
2019-10-091910-26708-001ND
2019-10-091910-26708-003ND
2019-11-061911-29206-001-SND
2019-11-061911-29213-001-SND