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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

Golden State Water Company (GSWC) - Culver City

NOTE: Golden State Water Company (GSWC) - Culver City purchases water from Metropolitan Water District of So. Cal. which is required to test for chloromethane. Sample information shown below was taken by Metropolitan Water District of So. Cal..

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND50ND
2013ND50ND
2014ND50ND
2015ND40ND
2016ND50ND
2017ND50ND

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

NOTE: Golden State Water Company (GSWC) - Culver City purchases water from Metropolitan Water District of So. Cal. which is required to test for chloromethane. Sample information shown below was taken by Metropolitan Water District of So. Cal..

Date Lab ID Result
2012-04-034412-026-0945ND
2012-04-034412-020-1025ND
2012-04-034412-013-1040ND
2012-04-034412-005-0825ND
2012-04-034412-003-1025ND
2013-07-024412-026-1030ND
2013-07-024412-020-1055ND
2013-07-024412-013-0925ND
2013-07-024412-005-0950ND
2013-07-024412-003-1012ND
2014-10-074412-026-1000ND
2014-10-074412-020-1120ND
2014-10-074412-013-1020ND
2014-10-074412-005-0840ND
2014-10-074412-003-0819ND
2015-01-064412-026-0820ND
2015-01-064412-020-1055ND
2015-01-064412-013-1015ND
2015-01-064412-005-0845ND
2015-01-064412-003-0810ND
2016-04-044412-026-0920ND
2016-04-044412-020-1030ND
2016-04-044412-013-1020ND
2016-04-044412-005-0730ND
2016-04-044412-003-1015ND
2017-07-314412-013-0900ND
2017-07-314412-005-0905ND
2017-07-314412-003-1000ND
2017-08-014412-026-1110ND
2017-08-024412-020-0835ND