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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Windermere Community

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.

 

56

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND210ND
2016ND60ND
2017ND70ND
2018ND70ND
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
2014-02-20Q1405512001ND
2014-03-12AC46777ND
2014-03-12AC46775ND
2014-05-20Q1416757001ND
2014-06-24AC57792ND
2014-06-24AC57798ND
2014-08-25Q1438950001ND
2014-08-27AC65279ND
2014-11-17Q1456033001ND
2015-02-24Q1507007009ND
2015-02-24Q1507007007ND
2015-02-24Q1507007011ND
2015-02-24Q1507007013ND
2015-02-24Q1507007001ND
2015-02-24Q1507007003ND
2015-02-24Q1507007005ND
2015-05-27Q1519169001ND
2015-08-05AD02693ND
2015-08-05AD02683ND
2015-08-05AD02689ND
2015-08-05AD02687ND
2015-08-05AD02685ND
2015-08-31Q1533383001ND
2015-08-31Q1533383009ND
2015-08-31Q1533383013ND
2015-08-31Q1533383011ND
2015-08-31Q1533383003ND
2015-08-31Q1533383007ND
2015-08-31Q1533383005ND
2015-11-19Q1545795001ND
2016-02-09AD22758ND
2016-04-27AD34470ND
2016-04-27AD34468ND
2016-04-27AD34466ND
2016-04-27AD34476ND
2016-09-06AD47927ND
2017-03-13AD74666ND
2017-05-01AD81860ND
2017-05-01AD81848ND
2017-09-18AD96553ND
2017-12-05AE06748ND
2017-12-05AE06750ND
2017-12-07AE07245ND
2018-02-12AE13282ND
2018-02-12AE13280ND
2018-02-12AE13276ND
2018-02-12AE13274ND
2018-02-12AE13284ND
2018-02-12AE13278ND
2018-04-04AE21214ND
2019-01-22AE50702ND
2019-01-22AE50706ND
2019-01-22AE50700ND
2019-01-22AE50704ND
2019-05-06AE64938ND
2019-08-07AE77513ND