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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Willingboro MUA

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.

MORE ABOUT THIS CONTAMINANT

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND30ND
2014ND60ND
2015ND50ND
2016ND30ND
2017ND30ND
2018ND60ND
2019ND60ND

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
2013-12-17763566-10449ND
2013-12-17763559-10449ND
2013-12-17763568-10449ND
2014-02-04L4860687-10ND
2014-03-04L4860709-2ND
2014-03-04L4860709-1ND
2014-06-24799148-11667ND
2014-06-24799152-11667ND
2014-06-24799144-11667ND
2015-03-04L5367913-1ND
2015-03-04L5367913-2ND
2015-04-06L5490273-1ND
2015-07-06L5697933-1ND
2015-10-05L5367928-1ND
2016-01-20L4354069-1ND
2016-03-22L5969178-2ND
2016-04-11L6179330-1ND
2017-08-08370809052ND
2017-11-02371102132ND
2017-11-14371115125ND
2018-01-22380124097ND
2018-01-22380124098ND
2018-01-23380124096ND
2018-04-09380411136ND
2018-07-09380711708ND
2018-10-10381010715ND
2019-02-13390214738ND
2019-02-13390214739ND
2019-02-26390227720ND
2019-05-15390515731ND
2019-08-14390814730ND
2019-11-06391106827ND