Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chloromethane

City of Tustin

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

 

99

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND130ND
2014ND130ND
2015ND100ND
2016ND140ND
2017ND220ND
2018ND150ND
2019ND120ND

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
2013-03-043010046812ND
2013-04-023010046805ND
2013-04-023010046816ND
2013-04-023010046814ND
2013-04-023010046815ND
2013-06-103010046812-2ND
2013-09-033010046812-3ND
2013-10-153010046805-2ND
2013-10-153010046808-2ND
2013-10-153010046816-2ND
2013-10-153010046814-2ND
2013-10-153010046815-2ND
2013-12-093010046812-4ND
2014-02-254417-017-1115ND
2014-02-254417-008-1050ND
2014-02-254417-011-1000ND
2014-02-254417-012-1025ND
2014-05-284417-032-0945ND
2014-05-284417-013-0830ND
2014-05-284417-011-1040ND
2014-08-134417-003-1015ND
2014-08-134417-016-1030ND
2014-08-134417-013-0850ND
2014-08-134417-011-1045ND
2014-11-134417-013-0945ND
2014-11-134417-011-1130ND
2015-03-114417-017-0925ND
2015-03-114417-008-0940ND
2015-03-114417-016-1015ND
2015-03-114417-012-1045ND
2015-05-134417-032-0955ND
2015-05-134417-013-0840ND
2015-05-134417-011-1040ND
2015-07-274417-022-1030ND
2015-07-274417-009-0940ND
2015-11-184417-022-1110ND
2016-02-244417-017-0840ND
2016-02-244417-016-0930ND
2016-02-244417-022-1035ND
2016-02-244417-011-0950ND
2016-02-244417-008-0855ND
2016-02-244417-003-1110ND
2016-06-024417-032-1015ND
2016-06-024417-003-1035ND
2016-06-024417-013-0955ND
2016-08-174417-022-0950ND
2016-09-134417-009-0905ND
2016-11-294417-009-1025ND
2016-11-294417-022-1045ND
2016-12-074417-036-0910ND
2017-01-314417-008-1020ND
2017-01-314417-017-0950ND
2017-02-064417-011-1110ND
2017-02-064417-036-0850ND
2017-02-064417-022-1130ND
2017-02-064417-009-1025ND
2017-02-064417-003-1000ND
2017-02-064417-016-1050ND
2017-03-064417-012-0935ND
2017-03-274417-012-0945ND
2017-03-274417-012-1000ND
2017-05-114417-009-1030ND
2017-05-114417-022-1005ND
2017-05-114417-013-0830ND
2017-05-114417-012-1105ND
2017-05-314417-032-0935ND
2017-05-314417-036-0840ND
2017-07-274417-036-1140ND
2017-09-074417-009-1115ND
2017-09-074417-022-1140ND
2017-11-294417-009-1000ND
2017-11-294417-022-1020ND
2018-01-304417-022-0915ND
2018-02-134417-011-1010ND
2018-02-134417-016-0940ND
2018-02-224417-003-0900ND
2018-02-224417-009-0930ND
2018-03-084417-012-0850ND
2018-03-214417-008-0910ND
2018-03-214417-017-0850ND
2018-06-054417-036-0920ND
2018-06-054417-012-1030ND
2018-06-054417-032-1000ND
2018-06-074417-011-1010ND
2018-06-074417-013-1040ND
2018-08-064417-011-1145ND
2018-10-304417-011-0935ND
2019-02-194417-009-0905ND
2019-02-194417-011-1030ND
2019-02-194417-022-0930ND
2019-02-194417-003-0955ND
2019-02-214417-012-0835ND
2019-02-214417-013-0910ND
2019-02-214417-016-0850ND
2019-02-254417-032-1000ND
2019-02-254417-036-0940ND
2019-05-234417-011-0845ND
2019-07-154417-011-1120ND
2019-10-284417-011-0925ND