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EWG's Tap Water Database — 2021 UPDATE

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Methomyl

San Lorenzo Valley Water District

Methomyl is an extremely toxic carbamate insecticide that targets the nervous system. In 2015 the EPA restricted some uses of methomyl on some food crops to reduce risks to human health.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND80ND
2016N/A00N/A
2017N/A00N/A
2018ND110ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-08-279590-034-1140ND
2014-11-189590-034-1200ND
2015-02-109590-034-1130ND
2015-05-209590-034-1445ND
2015-06-179590-023-1230ND
2015-06-179590-024-1215ND
2015-06-239590-010-1430ND
2015-06-239590-026-1515ND
2015-06-309590-025-1400ND
2015-07-279590-022-1500ND
2018-02-129590-034-0900ND
2018-03-019590-025-0945ND
2018-03-019590-026-0910ND
2018-03-069590-024-1045ND
2018-04-179590-022-1400ND
2018-05-079590-034-0900ND
2018-06-129590-025-1015ND
2018-06-129590-026-0945ND
2018-06-129590-010-1659ND
2018-07-179590-022-1400ND
2018-09-049590-010-0900ND