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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

City of Sugar Land

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND130ND
2014ND30ND
2015ND70ND
2016ND80ND
2017ND60ND

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
2012-08-23AB99562ND
2013-01-22201301240216AMND
2013-01-22201301240222AMND
2013-01-22201301240285AMND
2013-01-22201301240319AMND
2013-01-22201301240266AMND
2013-01-22201301240251AMND
2013-06-18201306190324AMND
2013-06-18201306190360AMND
2013-06-18201306190368AMND
2013-06-18201306190355AMND
2013-06-18201306190358AMND
2013-06-18201306190346AMND
2013-12-03AC36506ND
2014-02-11AC42218ND
2014-04-29AC52055ND
2014-07-23AC60702ND
2015-01-22AC77367ND
2015-04-01AC86970ND
2015-04-01AC86974ND
2015-04-01AC86980ND
2015-04-01AC86978ND
2015-04-01AC86982ND
2015-04-01AC86976ND
2016-02-02AD21466ND
2016-02-02AD21462ND
2016-02-02AD21464ND
2016-02-02AD21458ND
2016-02-02AD21456ND
2016-02-02AD21460ND
2016-09-01AD47688ND
2016-10-05AD52573ND
2017-01-04AD62987ND
2017-03-22AD76321ND
2017-03-22AD76341ND
2017-03-22AD76323ND
2017-03-22AD76345ND
2017-04-03AD78053ND