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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

City of Hurst

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND10ND
2014ND110ND
2015ND30ND
2016ND40ND
2017ND30ND
2018ND30ND
2019ND30ND

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
2013-10-172915352ND
2014-01-082955052ND
2014-04-10Q1411477001ND
2014-04-10Q1411477007ND
2014-04-10Q1411477003ND
2014-04-10Q1411477005ND
2014-07-08Q1426129001ND
2014-08-13Q1436928004ND
2014-08-13Q1436928002ND
2014-10-14Q1452234001ND
2014-10-14Q1452234005ND
2014-10-14Q1452234003ND
2015-04-09Q1513322004ND
2015-04-09Q1513322006ND
2015-04-09Q1513322001ND
2016-03-21AD29581ND
2016-07-11Q1627746006ND
2016-07-11Q1627746004ND
2016-07-11Q1627746002ND
2017-01-04Q1700326003ND
2017-01-04Q1700326012ND
2017-07-24Q1730292001ND
2018-07-10Q1826956005ND
2018-07-10Q1826956002ND
2018-10-02Q1839327002ND
2019-01-16Q1902266010ND
2019-01-16Q1902266002ND
2019-04-17Q1915359005ND