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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

City of Kingsburg

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.

MORE ABOUT THIS CONTAMINANT

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND140ND
2015ND80ND
2016N/A00N/A
2017N/A00N/A
2018ND70ND
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
2014-03-255867-013-1155ND
2014-11-21A4K0248-11AND
2014-11-21A4K0248-16AND
2014-11-21A4K0248-01AND
2014-11-21A4K0248-06AND
2014-11-21A4K0248-31AND
2014-11-21A4K0248-21AND
2014-11-21A4K0248-26AND
2014-12-185867-013-1145ND
2014-12-185867-012-1115ND
2014-12-185867-011-1130ND
2014-12-185867-009-1225ND
2014-12-185867-006-1205ND
2014-12-185867-010-1155ND
2015-06-29A5F2079-18AND
2015-06-29A5F2079-08AND
2015-06-29A5F2079-13AND
2015-06-29A5F2079-33AND
2015-06-29A5F2079-28AND
2015-06-29A5F2079-03AND
2015-06-29A5F2079-23AND
2015-12-175867-007-1300ND
2018-01-245810-011-0930ND
2018-01-245810-010-1045ND
2018-01-245810-009-1010ND
2018-01-245810-012-0950ND
2018-01-245810-013-1100ND
2018-01-245810-006-1130ND
2018-12-115810-007-0950ND