Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Chloromethane

City of Grand Prairie

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.

 

51

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND100ND
20140.0828 ppb182ND - 0.910 ppb
2015ND80ND
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
2012-08-131208543010ND
2013-07-1635100890017AMND
2013-07-1635100890029AMND
2013-07-1635100890013AMND
2013-07-1635100890005AMND
2013-07-1635100890025AMND
2013-07-1635100890009AMND
2013-07-1635100890021AMND
2013-07-1635100890001AMND
2013-10-0335111029005AMND
2013-10-0335111029001AMND
2014-01-1535123078005AMND
2014-01-1535123078007AMND
2014-01-1535123078013AMND
2014-01-1535123078015AMND
2014-01-1535123078011AMND
2014-01-1535123078009AMND
2014-01-1535123078001AMND
2014-01-1535123078003AMND
2014-04-0335132919005AMND
2014-04-03351329190011AMND
2014-04-23Q1412991001ND
2014-06-04Q1419331002ND
2014-06-26Q1424023040ND
2014-06-26Q1424023005ND
2014-06-26Q1424023003ND
2014-06-26Q1424023002ND
2014-09-10Q14429910050.910 ppb
2014-09-10Q14429910020.580 ppb
2015-03-11Q1509064001ND
2015-06-09Q1521042004ND
2015-07-14Q1526936001ND
2015-07-14Q1526936003ND
2015-07-14Q1526936006ND
2015-07-14Q1526936007ND
2015-10-07Q1539391012ND
2015-10-07Q1539391014ND
2016-01-14Q1601729011ND
2016-01-14Q1601729014ND
2016-01-14Q1601729016ND
2016-01-14Q1601729018ND
2016-03-01Q1608611002ND
2016-07-14Q1628712002ND
2016-10-05Q1642114002ND
2016-12-05Q1652555001ND
2017-01-05Q1700632016ND
2017-01-05Q1700632002ND
2017-06-27Q1726535024ND
2017-06-27Q1726535014ND
2017-06-27Q1726535021ND
2017-06-27Q1726535020ND