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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

City of Splendora

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND90ND
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
2014-05-06AC53145ND
2015-02-24AC81677ND
2015-02-24AC81681ND
2015-02-24AC81675ND
2015-04-07112980PND
2015-04-07112978PND
2015-05-06113370RND
2015-10-21115857PND
2015-10-21115856PND
2015-11-17116982RND
2016-04-14AD33198ND
2016-04-14AD33202ND
2016-04-14AD33200ND
2017-03-30AD77744ND
2017-03-30AD77736ND
2017-03-30AD77738ND
2018-03-15AE18648ND
2018-03-15AE18630ND
2018-03-15AE18642ND
2019-04-08AE61400ND
2019-04-08AE61398ND
2019-04-08AE61402ND