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EWG's Tap Water Database — 2021 UPDATE

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Iodomethane

Western Cass Water Supply Corporation

Iodomethane (methyl iodide) is an industrial chemical and soil fumigant. It is not allowed for use in California due to the harm it poses to human health.

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND90ND
2016ND60ND
20170.129 ppb51ND - 0.643 ppb
2018ND50ND
2019ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-07-23Q1430392008ND
2015-05-07Q1516885009ND
2015-05-07Q1516885007ND
2015-05-07Q1516885006ND
2015-05-07Q1516885003ND
2015-05-07Q1516885001ND
2015-09-15Q1535745004ND
2015-09-15Q1535745002ND
2015-12-09Q1549101004ND
2015-12-09Q1549101002ND
2016-05-24Q1620338020ND
2016-05-24Q1620338008ND
2016-05-24Q1620338005ND
2016-05-24Q1620338004ND
2016-05-24Q1620338001ND
2016-09-16Q1638625002ND
2017-08-28Q1739001014ND
2017-08-28Q1739001035ND
2017-08-28Q1739001018ND
2017-08-28Q1739001013ND
2017-08-28Q17390010160.643 ppb
2018-03-08Q1809687009ND
2018-03-08Q1809687007ND
2018-03-08Q1809687006ND
2018-03-08Q1809687004ND
2018-03-08Q1809687002ND
2019-05-02Q1918236001ND
2019-05-02Q1918236009ND
2019-05-02Q1918236007ND
2019-05-02Q1918236005ND
2019-05-02Q1918236003ND