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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

North Penn Water Authority

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

 

57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND240ND
2015ND20ND
2016ND30ND
2017ND280ND
2018N/A00N/A
2019N/A00N/A

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
2014-04-2214030712-01ND
2014-04-2214040590-01ND
2014-04-2214040589-01ND
2014-04-2214030715-01ND
2014-04-2214030714-01ND
2014-04-2814040582-01ND
2014-04-2914030716-01ND
2014-04-2914040579-01ND
2014-04-2914030718-01ND
2014-04-2914030719-01ND
2014-05-1914041348-01ND
2014-06-0914060594-01ND
2014-07-071425942ND
2014-07-071425946ND
2014-07-071425943ND
2014-07-071425953ND
2014-07-071425949ND
2014-07-211427975ND
2014-07-211427976ND
2014-08-041431083ND
2014-08-2514082296-01ND
2014-08-2514082295-01ND
2014-08-2514082298-01ND
2014-08-2514082297-01ND
2015-07-0213013256ND
2015-12-0913633936ND
2016-09-1914908638ND
2016-12-2715372297ND
2016-12-2715372304ND
2017-01-1115517896ND
2017-04-0515937168ND
2017-04-0515937026ND
2017-04-0515936990ND
2017-04-0515937133ND
2017-04-0515937097ND
2017-04-0515936955ND
2017-04-0515937061ND
2017-04-1915937912ND
2017-04-1915937840ND
2017-04-1915937984ND
2017-04-1915938020ND
2017-04-1915937948ND
2017-04-1915937876ND
2017-07-1216413978ND
2017-07-1216414085ND
2017-07-1216413907ND
2017-07-1216413942ND
2017-07-1216414013ND
2017-07-1216413872ND
2017-07-1216414049ND
2017-07-1716414156ND
2017-07-1716414120ND
2017-07-1716414300ND
2017-07-1716414192ND
2017-07-1716414228ND
2017-07-1716414264ND
2017-10-0916880747ND