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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Powdersville Water District

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND120ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

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
2015-03-11201503140193AMND
2015-03-11201503140174AMND
2015-03-11201503140183AMND
2015-06-10201506120107AMND
2015-06-10201506120282AMND
2015-06-10201506120111AMND
2015-09-14201509170009AMND
2015-09-14201509160567AMND
2015-09-14201509160607AMND
2015-12-07201512090611AMND
2015-12-07201512090454AMND
2015-12-07201512090448AMND