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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

Edina

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.

 

68

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND70ND
2013ND150ND
2014ND120ND
2015ND50ND
2016ND110ND
2017ND180ND

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
2012-03-2712C0955-01ND
2012-08-1612H1756-01ND
2012-08-1612H1756-02ND
2012-08-1612H1756-03ND
2012-09-1012I0373-02ND
2012-09-1012I0373-01ND
2012-11-0112K0073-01ND
2013-02-2713B1314-01ND
2013-05-3013E2572-03ND
2013-05-3013E2570-03ND
2013-05-3013E2570-02ND
2013-05-3013E2570-01ND
2013-07-2513G2159-03ND
2013-07-2513G2159-04ND
2013-07-2513G2161-01ND
2013-07-2513G2162-01ND
2013-07-2513G2162-02ND
2013-07-2513G2162-03ND
2013-07-251039552003ND
2013-07-251039552012ND
2013-07-251039552009ND
2013-07-251039552006ND
2014-01-291069551009ND
2014-01-291069551006ND
2014-01-291069551003ND
2014-06-3014F2153-01ND
2014-08-2014H1839-01ND
2014-08-2014H1839-02ND
2014-08-2014H1839-03ND
2014-08-2014H1839-04ND
2014-08-2014H1844-01ND
2014-08-2014H1844-02ND
2014-11-1914K0831-01ND
2014-11-1914K0831-02ND
2015-03-2515C1026-01ND
2015-05-1915E1395-01ND
2015-06-242079084001ND
2015-09-0315I0285-01ND
2015-12-0415L0261-01ND
2016-04-113428699ND
2016-04-113428678ND
2016-04-113428662ND
2016-04-113428612ND
2016-06-203475892ND
2016-06-213478338ND
2016-06-213475934ND
2016-06-213475907ND
2016-06-213475844ND
2016-06-213475817ND
2016-12-1416L0584-01ND
2017-02-0717B0344-01ND
2017-02-0717B0344-02ND
2017-02-0717B0344-03ND
2017-02-0717B0344-04ND
2017-02-0717B0347-01ND
2017-04-1317D0832-01ND
2017-04-1317D0832-02ND
2017-04-1317D0832-03ND
2017-05-1517E1213-01ND
2017-05-1517E1214-01ND
2017-07-2617G1826-04ND
2017-07-2617G1826-03ND
2017-07-2617G1826-02ND
2017-07-2617G1826-01ND
2017-07-2617G1806-02ND
2017-07-2617G1806-01ND
2017-12-1917L0684-02ND
2017-12-1917L0684-01ND