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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Artesian Water Company

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

 

213

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND180ND
2014ND660ND
2015ND400ND
2016ND450ND
2017ND370ND
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
2013-07-172860841ND
2013-07-172860390ND
2013-07-172860821ND
2013-07-172860890ND
2013-07-172860513ND
2013-07-172860199ND
2013-07-172860945ND
2013-07-172860340ND
2013-07-172860263ND
2013-07-172860379ND
2013-07-172860421ND
2013-07-172860763ND
2013-07-172860934ND
2013-07-172860351ND
2013-07-172860805ND
2013-07-172860748ND
2013-07-172860776ND
2013-10-152913851ND
2014-01-06L4892637-1ND
2014-01-06L4892639-1ND
2014-01-06L4892644-1ND
2014-01-282964275ND
2014-01-282964258ND
2014-01-282964062ND
2014-01-282964153ND
2014-01-282964170ND
2014-01-282964212ND
2014-01-282964043ND
2014-01-282964246ND
2014-01-282964077ND
2014-01-282964233ND
2014-01-282964116ND
2014-01-282964105ND
2014-01-282964093ND
2014-01-282964223ND
2014-01-282964131ND
2014-01-282964189ND
2014-02-05L4935367-1ND
2014-02-05L4935370-1ND
2014-02-07L4935658-1ND
2014-02-07L4935658-2ND
2014-02-18L4768478-VOCND
2014-02-20L4768585-VOCND
2014-02-20L4799695-VOCND
2014-02-20L4799863-1 VOCND
2014-02-25L4805909-1 VOCND
2014-02-27L4805818-VOCND
2014-02-27L4830599-1 VOCND
2014-02-27L4830758-VOCND
2014-02-27L4836771-VOCND
2014-03-04L4967359-1ND
2014-03-04L4967359-2ND
2014-03-04L4967360-1VOCND
2014-03-20L4836863-1 VOCND
2014-03-20L4949104-1ND
2014-03-24L4949106-1-VOCND
2014-03-24L4949108-VOCND
2014-03-24L4949110-VOCND
2014-03-24L4949113-VOCND
2014-04-01L4991785-1ND
2014-04-01L4991785-2ND
2014-04-03L5006062-1ND
2014-04-04L5006551-1ND
2014-04-233014339ND
2014-05-01L5030569-1ND
2014-05-07L5050389-1 VOCND
2014-05-19L5062269-1ND
2014-05-19L5062269-2ND
2014-05-30L5959119-1-VOCND
2014-07-03L5144791-1 VOCND
2014-07-163064493ND
2014-08-04L5193431-1ND
2014-09-02L5231075-1ND
2014-09-02L5231075-2ND
2014-09-03L5235055-1VOCND
2014-09-03L5235055-2-VOCND
2014-10-03L5274679-1ND
2014-11-04L5314270-1ND
2014-11-04L5314270-2ND
2014-11-05L5315635-1-VOCND
2014-11-05L5315635-2-VOCND
2014-12-15L5359596-1-VOCND
2014-12-15L5359597-1-VOCND
2014-12-15L5359597-2-VOCND
2015-01-06L5393622-1ND
2015-01-09L5398026-1 VOCND
2015-01-26L5242398-1 VOCND
2015-01-26L5242399-1ND
2015-01-26L5242404-1 VOCND
2015-01-29L524205-1 VOCND
2015-01-29L5242406-1 VOCND
2015-01-29L5242407-1-VOCND
2015-01-29L5242895-1-VOCND
2015-01-30L5242896-1 VOCND
2015-01-30L5250627-1 VOCND
2015-01-30L5250713-1 VOCND
2015-02-26L5286929-1 VOCND
2015-03-02L5287047-1-VOCND
2015-03-02L5293036-1 VOCND
2015-03-02L5293104-1-VOCND
2015-03-31L5511077-1ND
2015-04-01L5513705-1-VOCND
2015-04-15L5536821-1-VOCND
2015-04-15L5537277-1 VOCND
2015-06-01L5611916-1ND
2015-06-01L5611916-2ND
2015-06-04L5628778-1ND
2015-06-22L5661471-1ND
2015-07-01L5676946-1ND
2015-07-06L5692593-1ND
2015-09-01L5800237-1ND
2015-09-01L5800237-2ND
2015-09-02L5802388-1ND
2015-09-02L5802391-1ND
2015-09-23L5534590-1 VOCND
2015-10-01L5835730-1 VOCND
2015-10-02L5836565-1 VOCND
2015-10-02L5836566-1 VOCND
2015-10-07L5853905-1 VOCND
2015-11-02L5899917-1ND
2015-11-02L5899917-2ND
2015-12-10L5590066-1 VOCND
2015-12-10L5956173-1ND
2015-12-10L5956173-2ND
2016-01-04L5988545-1ND
2016-01-04L5988546-1ND
2016-01-04L5988546-2ND
2016-01-04L5988547-1ND
2016-01-05L6006215-1ND
2016-01-05L6006223-1ND
2016-01-15L5762486-1 VOCND
2016-01-15L5820919-1 VOCND
2016-01-15L5863869-1 VOCND
2016-01-29L6019360-1 VOCND
2016-01-29L6019361-1 VOCND
2016-01-29L6019362-1 VOCND
2016-02-01L6053158-1ND
2016-02-01L6053158-2ND
2016-02-17L6019363-1 VOCND
2016-02-17L6019364-1 VOCND
2016-02-17L6019365-1 VOCND
2016-02-23L6019366-1 VOCND
2016-02-23L6019367-1 VOCND
2016-02-23L6019368-1 VOCND
2016-02-23L6019369-1 VOCND
2016-02-23L6019370- VOCND
2016-03-28L6142373-1 VOCND
2016-04-04L6166403-1 VOCND
2016-04-07L6170166-1 VOCND
2016-05-20L6019372-1 VOCND
2016-06-06L6019374-1 VOCND
2016-06-06L6302168-1ND
2016-06-10L6307130-1ND
2016-06-16L6319857-1ND
2016-06-16L6319857-2ND
2016-06-21L6326398-1ND
2016-07-06L6359964-1ND
2016-07-08L6361949-1ND
2016-07-11L6363789-1ND
2016-07-11L6363789-2 VOCND
2016-07-11L6363790-1ND
2016-07-11L6363793-1ND
2016-08-05L6390073-1 VOCND
2016-09-09L6461769-1ND
2016-10-04L6499891-1ND
2016-10-04L6499893-1ND
2016-10-05L6502154-1ND
2016-10-05L6502181-1ND
2016-10-05L6502183-1ND
2017-01-04L6630039-1ND
2017-01-04L6630041-1ND
2017-01-06L6631632-1ND
2017-01-18L6547052-1 VOCND
2017-01-20L6469070-1 VOCND
2017-01-20L6469144-1 VOCND
2017-01-23L6485710-1VOCND
2017-01-23L6547102-1 VOCND
2017-01-23L6553141-1 VOCND
2017-01-25L6476340-1 VOCND
2017-01-25L6476416-1 VOCND
2017-01-25L6476488-1 VOCND
2017-01-25L6476525-1 VOCND
2017-01-31L6371963-1 VOCND
2017-01-31L6372370-1 VOCND
2017-01-31L6378581-1 VOCND
2017-03-06L6485639-1 VOCND
2017-03-09L6568580-1 VOCND
2017-04-04L6752338-1 VOCND
2017-04-05L6753806-1 VOCND
2017-04-05L6753806-2ND
2017-04-06L6754970-1 VOCND
2017-04-13L6763126-1 524ND
2017-05-03L6791948-1 VOCND
2017-06-13L6851464-1ND
2017-07-06L6895433-1 VOCND
2017-07-10L6899909-1ND
2017-07-12L6903562-1ND
2017-07-14L6904370-1ND
2017-08-04L6932965-1ND
2017-09-13L6950001-1ND
2017-10-03L6957608-1ND
2017-10-03L6957609-1ND
2017-10-10L6959282-1ND
2017-10-10L6959284-1ND
2017-11-07L6968999-1ND
2017-12-067114325-01 VOCND
2018-01-058011810-01ND
2018-01-058011820-01ND
2018-01-108011813-01ND
2018-01-108011818-01ND
2018-01-268014291-01 VOCND
2018-01-268014295-01 VOCND
2018-06-128061422-01ND