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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Springs Hill WSC

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND140ND
2014ND10ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2013-03-191303648-001DND
2013-03-191303648-007DND
2013-03-191303648-003DND
2013-03-191303648-005DND
2013-06-19Q1302505001ND
2013-06-19Q1302505005ND
2013-06-19Q1302505003ND
2013-09-19Q1307606003ND
2013-09-19Q1307606001ND
2013-09-19Q1307606007ND
2013-09-19Q1307606005ND
2013-12-19Q1318599003ND
2013-12-19Q1318599001ND
2013-12-19Q1318599005ND
2014-07-29AC61347ND
2015-02-16AC80624ND
2015-07-21AD00421ND
2016-01-13AD17893ND
2016-07-07AD43351ND
2017-01-26AD67181ND
2017-07-24AD90380ND
2018-01-19AE09545ND
2018-07-09AE32628ND
2019-08-01AE76828ND
2019-11-22AE90438ND