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EWG's Tap Water Database — 2021 UPDATE

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Methomyl

Westerly Water Department

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-01BG39530-SOCND
2014-05-01BG39529-SOCND
2014-05-01BG39528-SOCND
2014-05-02BG40111-SOCND
2014-05-02BG40109-SOCND
2014-05-06BG41004-SOCND
2014-05-08BG42439-SOCND
2014-05-13BG43968-SOCND
2014-05-13BG43969-SOCND
2014-05-14BG44525-SOCND
2014-05-15BG45216_SOCND
2014-05-15BG45214-SOCND
2014-10-10BH26017_SOCND
2014-10-10BH26015_SOCND
2014-10-14BH27157_SOCND
2014-10-14BH27159_SOCND
2014-10-15BH27765_SOCND
2014-10-15BH27767_SOCND
2014-10-16BH28481_SOCND
2014-10-16BH28479_SOCND
2014-10-17BH28987_SOCND
2014-10-17BH28985_SOCND
2014-10-21BH30248_SOCND
2014-10-21BH30250_SOCND
2017-04-26BY10338_SOCND
2017-04-26BY10335_SOCND
2017-04-27BY11116_SOCND
2017-04-27BY11112_SOCND
2017-04-28BY11761_SOCND
2017-04-28BY11768_SOCND
2017-04-28BY11765_SOCND
2017-05-02BY13336_SOCND
2017-05-02BY13340_SOCND
2017-05-03BY14006_SOCND
2017-05-03BY14010_SOCND
2017-05-16BY21037_SOCND
2017-11-07BZ34010_SOCND
2017-11-07BZ34008_SOCND
2017-11-08BZ37670_SOCND
2017-11-08BZ37668_SOCND
2017-11-08BZ37666_SOCND
2017-11-09BZ38809_SOCND
2017-11-09BZ38935_SOCND
2017-11-09BZ38807_SOCND
2017-11-10BZ39477_SOCND
2017-11-10BZ39479_SOCND
2017-11-15BZ42165_SOCND
2017-11-15BZ42167_SOCND