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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

River Plantation Municipal Utility District

Chloromethane is an industrial solvent, aerosol propellant and a refrigerant. It also forms as a byproduct of water disinfection. The EPA classifies chloromethane as possibly carcinogenic to humans.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND30ND
2016ND30ND
2017ND30ND
2018ND30ND
2019ND30ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 2.69 ppb

The EWG Health Guideline of 2.69 ppb for chloromethane was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-07-28AC61102ND
2015-05-04AC90341ND
2015-05-04AC90339ND
2015-05-04AC90345ND
2016-02-25AD25771ND
2016-02-25AD25765ND
2016-02-25AD25787ND
2017-04-18AD79950ND
2017-04-18AD79982ND
2017-04-18AD79976ND
2018-04-20AE23487ND
2018-04-20AE23485ND
2018-04-20AE23457ND
2019-03-18AE58675ND
2019-03-18AE58683ND
2019-11-20AE89978ND