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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

City of North Platte

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

 

66

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND140ND
2014ND260ND
2015ND50ND
2016ND40ND
2017ND80ND
2018ND40ND
2019ND50ND

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
2013-10-01201310030462AMND
2013-10-01201310030367AMND
2013-10-01201310030497AMND
2013-10-01201310040263AMND
2013-10-01201310030247AMND
2013-10-01201310030486AMND
2013-10-01201310030488AMND
2013-10-02201310040270AMND
2013-10-02201310040242AMND
2013-10-02201310040131AMND
2013-10-02201310040232AMND
2013-10-02201310040126AMND
2013-10-02201310040208AMND
2013-10-02201310040117AMND
2014-02-12278459ND
2014-03-19279093ND
2014-04-14201404160626AMND
2014-04-14201404160640AMND
2014-04-14201404160896AMND
2014-04-14201404160903AMND
2014-04-14201404160823AMND
2014-04-14201404160892AMND
2014-04-14201404160738AMND
2014-04-15201404160831AMND
2014-04-15201404160634AMND
2014-04-15201404160632AMND
2014-04-15201404160825AMND
2014-04-15201404160915AMND
2014-04-15201404160812AMND
2014-04-15201404160624AMND
2014-05-19294427ND
2014-05-19294426ND
2014-06-11294428ND
2014-06-11294429ND
2014-06-11294430ND
2014-06-11294431ND
2014-06-11294432ND
2014-06-11294433ND
2014-06-11294434ND
2014-11-19328562ND
2015-01-26343308ND
2015-04-22353626ND
2015-04-22353627ND
2015-10-28391765ND
2015-12-08391766ND
2016-06-02ND
2016-06-02ND
2016-06-08ND
2016-10-25ND
2017-05-09ND
2017-05-09ND
2017-06-21ND
2017-06-21ND
2017-06-21ND
2017-06-21ND
2017-06-21ND
2017-10-02ND
2018-04-23541609ND
2018-06-25541610ND
2018-10-29577082ND
2018-12-03577244ND
2019-03-05592278ND
2019-03-05592277ND
2019-04-23603920ND
2019-05-28604747ND
2019-10-29638464ND