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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Lakewood Water Department

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

 

59

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND180ND
2016ND100ND
2017ND110ND
2018ND100ND
2019ND100ND

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
2015-02-25201501200572AMND
2015-02-25201501200559AMND
2015-02-25201501200558AMND
2015-02-25201501200567AMND
2015-02-25201501200556AMND
2015-02-25201501200560AMND
2015-02-25201501200574AMND
2015-02-25201501200557AMND
2015-02-25201501200566AMND
2015-04-30201505110161AMND
2015-08-25201508260443AMND
2015-08-25201508260447AMND
2015-08-25201508260439AMND
2015-08-25201508260431AMND
2015-08-25201508260429AMND
2015-08-25201508260437AMND
2015-08-25201508260441AMND
2015-08-25201508260433AMND
2016-02-249588-001-1400ND
2016-06-159588-052-1010ND
2016-06-159588-045-1035ND
2016-08-259588-044-1430ND
2016-08-259588-022-1300ND
2016-08-259588-004-1245ND
2016-11-229588-006-1210ND
2016-11-229588-016-1145ND
2016-11-229588-007-1220ND
2016-11-229588-015-1200ND
2017-02-209588-001-0750ND
2017-08-229588-015-1049ND
2017-08-229588-001-1130ND
2017-08-229588-004-0841ND
2017-08-229588-006-0950ND
2017-08-229588-007-0900ND
2017-08-229588-052-0821ND
2017-08-229588-045-1022ND
2017-08-229588-016-1112ND
2017-08-229588-022-1155ND
2017-08-229588-044-0930ND
2018-08-069588-004-0819ND
2018-08-069588-015-1000ND
2018-08-069588-052-0800ND
2018-08-069588-016-1019ND
2018-08-069588-001-1050ND
2018-08-069588-022-1110ND
2018-08-069588-007-0829ND
2018-08-069588-044-0901ND
2018-08-069588-045-0938ND
2018-08-069588-006-0841ND
2019-08-059588-001-0836ND
2019-08-059588-006-0958ND
2019-08-059588-016-1046ND
2019-08-059588-004-0854ND
2019-08-059588-022-0820ND
2019-08-059588-044-1005ND
2019-08-059588-007-0945ND
2019-08-059588-015-1027ND
2019-08-059588-052-0937ND
2019-08-059588-045-1017ND