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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

New Windsor Consolidated WD

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.

 

52

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND140ND
2015ND140ND
2016ND50ND
2017ND30ND
2018ND60ND
2019ND100ND

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
2014-03-3103311402(POCS)ND
2014-03-3103311401(POCS)ND
2014-04-0804081404(POCS)ND
2014-05-1405141420(POCS)ND
2014-09-1635155494005AMND
2014-09-1635155494001AMND
2014-09-1635155494009AMND
2014-09-1635155494007AMND
2014-09-1635155494003AMND
2014-12-052043901004ND
2014-12-052043901007ND
2014-12-052043901017ND
2014-12-052043901010ND
2014-12-052043901001ND
2015-03-3035181642005AMND
2015-03-3035181642009AMND
2015-03-3035181642007AMND
2015-03-3035181642001AMND
2015-03-3035181642003AMND
2015-04-2304231508(POCS)ND
2015-04-2304231509(POCS)ND
2015-04-2304231510(POCS)ND
2015-07-2907291513(POCS)ND
2015-08-1990001 82015ND
2015-08-1930193 82015ND
2015-08-1990002 82015ND
2015-08-1931450 82015ND
2015-08-1931449 82015ND
2016-01-2001201606(POCS)ND
2016-01-2001201607(POCS)ND
2016-01-2701271608(POCS)ND
2016-03-0203021622-1(POCS)ND
2016-04-2104211602-2(POCS)ND
2017-08-0208021720C-2(POCSND
2017-08-0208021720A-2(POCSND
2017-08-0208021720B-2(POCSND
2018-04-2504251809NITRA-POND
2018-04-2504251811POCSND
2018-04-2504251810(NITRA-PND
2018-12-0312031807E-POCND
2018-12-1012101809F-POCND
2018-12-1012101809B-POCND
2019-01-0801091908B-POCSND
2019-01-0801081916C-POCND
2019-01-0801081916B-POCSND
2019-04-1704171904A-POCND
2019-04-1704171904B-POCND
2019-04-1704171904C-POCND
2019-11-1211121905POCND
2019-12-0312031903POCND
2019-12-0312031902POCND
2019-12-0912091905POCND