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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Pennsville Twsp. Water Depart.

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.

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND150ND
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
2014-01-02L4861424-15ND
2014-02-05L4900147-1ND
2014-02-05L4900147-2ND
2014-02-05L4900147-3ND
2014-04-01L4974775-13ND
2014-04-01L4974775-12ND
2014-04-01L4974775-11ND
2014-07-15L3628988-1ND
2014-07-15L3628988-3ND
2014-07-15L3628988-2ND
2014-10-08L4900148-3ND
2014-10-08L4900148-1ND
2014-10-08L4900148-2ND
2014-12-15835821-13058ND
2014-12-15835817-13058ND
2014-12-15835815-13058ND
2015-01-28L5364497-4ND
2015-01-28L5364497-5ND
2015-01-28L5364497-3ND
2015-04-01L5101676-3ND
2015-04-01L5101676-2ND
2015-04-01L5101676-1ND
2015-06-08864585-14270ND
2015-06-09864791-14270ND
2015-06-29868340-14455ND
2015-07-22L5706276-6ND
2015-07-22L5706276-4ND
2015-07-22L5706276-5ND
2015-12-08L5914278-8ND
2015-12-08L5914278-6ND
2015-12-08L5914278-7ND