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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Cassadaga Village

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.

 

23

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
2015ND60ND
2016ND20ND
2017ND40ND
2018ND60ND
2019ND50ND

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
2015-05-0515POCS WELL#1 CAND
2015-05-0515POC RAW#5 CASSND
2015-05-0515POCS EP#4 CASSND
2015-07-303RDQT15 POC EP#1ND
2015-10-224THQT15 WELL #4ND
2015-10-224THQT15 WELL#1CAND
2016-06-22POCS16 WELL #1ND
2016-12-132016 POC WELL 5ND
2017-02-082ND QUARTERLY 1SND
2017-06-072NDQT17 POC WELLND
2017-08-233RDQT17 POCS EP#ND
2017-08-23POCS17 ENTRY PTND
2018-03-21POC 2018ND
2018-07-16POCS 2018 CASS WND
2018-07-16POCS 2018 CASS WND
2018-07-16POCS 2018 CASS WND
2018-10-032018 POC CASSADAND
2018-10-09POCS 2018 CASS RND
2019-03-20POCS 19 WL5 CASSND
2019-03-20Q1 19 POCS WL1 CND
2019-05-22Q2 19 POCS WL1 CND
2019-08-28Q3 19 POCS WL1 CND
2019-11-06Q4 19 POCS WL1 CND