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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

Lockport

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
2012N/A00N/A
2013N/A00N/A
2014ND120ND
2015N/A00N/A
2016N/A00N/A
2017N/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
2014-03-1125047501ND
2014-03-1125047801ND
2014-03-1125048001ND
2014-03-1125047601ND
2014-03-1125047701ND
2014-04-0125433001ND
2014-09-0927043601ND
2014-09-0927043401ND
2014-09-0927043701ND
2014-09-0927043801ND
2014-09-0927043901ND
2014-09-0927043501ND