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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Ridgewood Water

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

 

317

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND2870ND
2015ND240ND
2016ND60ND
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
2014-01-074010141-01ND
2014-01-074010141-02ND
2014-01-074010141-06ND
2014-01-074010141-13ND
2014-01-074010141-15ND
2014-01-074010141-17ND
2014-01-074010141-09ND
2014-01-074010141-11ND
2014-01-074010141-18ND
2014-01-074010141-07ND
2014-01-214010529-01ND
2014-01-214010529-03ND
2014-01-214010529-13ND
2014-01-214010529-10ND
2014-01-214010529-11ND
2014-01-214010529-07ND
2014-01-214010529-09ND
2014-01-214010529-12ND
2014-01-214010529-05ND
2014-02-044020067-03ND
2014-02-044020067-07ND
2014-02-044020067-09ND
2014-02-044020067-15ND
2014-02-044020067-16ND
2014-02-044020067-12ND
2014-02-044020067-14ND
2014-02-044020067-18ND
2014-02-044020067-10ND
2014-02-184020345-01ND
2014-02-184020345-03ND
2014-02-184020345-12ND
2014-02-184020345-10ND
2014-02-184020345-07ND
2014-02-184020345-09ND
2014-02-184020345-11ND
2014-02-184020345-05ND
2014-03-044030100-01ND
2014-03-044030100-03ND
2014-03-044030100-05ND
2014-03-044030100-11ND
2014-03-044030100-12ND
2014-03-044030100-08ND
2014-03-044030100-10ND
2014-03-044030100-14ND
2014-03-044030100-06ND
2014-03-184030458-01ND
2014-03-184030458-03ND
2014-03-184030458-10ND
2014-03-184030458-07ND
2014-03-184030458-09ND
2014-03-184030458-11ND
2014-03-184030458-05ND
2014-04-014040049-01ND
2014-04-014040049-03ND
2014-04-014040049-14ND
2014-04-014040049-18ND
2014-04-014040049-10ND
2014-04-014040049-06ND
2014-04-014040049-08ND
2014-04-014040049-19ND
2014-04-014040049-04ND
2014-04-154040521-01ND
2014-04-154040521-08ND
2014-04-154040521-05ND
2014-04-154040521-07ND
2014-04-154040521-09ND
2014-04-154040521-03ND
2014-04-294040877-01ND
2014-04-294040877-04ND
2014-04-294040877-13ND
2014-04-294040877-10ND
2014-04-294040877-12ND
2014-04-294040877-14ND
2014-04-294040877-08ND
2014-05-134050455-01ND
2014-05-134050455-03ND
2014-05-134050455-05ND
2014-05-134050455-11ND
2014-05-134050455-12ND
2014-05-134050455-08ND
2014-05-134050455-10ND
2014-05-134050455-14ND
2014-05-134050455-06ND
2014-05-274050800-01ND
2014-05-274050800-05ND
2014-05-274050800-08ND
2014-05-274050800-21ND
2014-05-274050800-04ND
2014-05-274050800-03ND
2014-05-274050800-15ND
2014-05-274050800-16ND
2014-05-274050800-14ND
2014-05-274050800-20ND
2014-05-274050800-10ND
2014-05-294050852-05ND
2014-05-294050852-02ND
2014-06-104060344-05ND
2014-06-104060344-01ND
2014-06-104060344-03ND
2014-06-104060344-06ND
2014-06-104060344-09ND
2014-06-104060344-07ND
2014-06-244060776-01ND
2014-06-244060776-03ND
2014-06-244060776-10ND
2014-06-244060776-07ND
2014-06-244060776-09ND
2014-06-244060776-12ND
2014-06-244060776-14ND
2014-06-244060776-05ND
2014-06-25201406260490AMND
2014-06-25201406260438AMND
2014-06-25201406260454AMND
2014-06-25201406260368AMND
2014-06-25201406260462AMND
2014-06-25201406260440AMND
2014-06-25201406260486AMND
2014-06-25201406260471AMND
2014-06-25201406260450AMND
2014-06-25201406260464AMND
2014-06-25201406260430AMND
2014-06-25201406260442AMND
2014-06-25201406260488AMND
2014-06-25201406260484AMND
2014-06-25201406260482AMND
2014-06-25201406260460AMND
2014-06-30201407010185AMND
2014-06-30201407010208AMND
2014-06-30201407010206AMND
2014-06-30201407010202AMND
2014-06-30201407010200AMND
2014-06-30201407010212AMND
2014-06-30201407010210AMND
2014-06-30201407010155AMND
2014-06-30201407010140AMND
2014-06-30201407010192AMND
2014-07-074070293-01ND
2014-07-074070293-07ND
2014-07-074070293-03ND
2014-07-074070293-08ND
2014-07-074070293-09ND
2014-07-074070293-16ND
2014-07-074070293-18ND
2014-07-074070293-21ND
2014-07-074070293-20ND
2014-07-074070293-12ND
2014-07-074070293-14ND
2014-07-074070293-26ND
2014-07-074070293-29ND
2014-07-074070293-10ND
2014-07-224070751-03ND
2014-07-224070751-10ND
2014-07-224070751-01ND
2014-07-224070751-02ND
2014-07-224070751-12ND
2014-07-224070751-18ND
2014-07-224070751-19ND
2014-07-224070751-15ND
2014-07-224070751-17ND
2014-07-224070751-23ND
2014-07-224070751-21ND
2014-07-224070751-20ND
2014-07-224070751-25ND
2014-07-224070751-13ND
2014-08-054080209-01ND
2014-08-054080209-03ND
2014-08-054080209-05ND
2014-08-054080209-11ND
2014-08-054080209-12ND
2014-08-054080209-14ND
2014-08-054080209-08ND
2014-08-054080209-10ND
2014-08-054080209-16ND
2014-08-054080209-18ND
2014-08-054080209-06ND
2014-08-06201408070359AMND
2014-08-194080651-01ND
2014-08-194080651-03ND
2014-08-194080651-09ND
2014-08-194080651-07ND
2014-08-194080651-11ND
2014-08-194080651-13ND
2014-08-194080651-05ND
2014-08-264080840-01ND
2014-09-024090050-01ND
2014-09-024090050-03ND
2014-09-024090050-05ND
2014-09-024090050-10ND
2014-09-024090050-11ND
2014-09-024090050-13ND
2014-09-024090050-08ND
2014-09-024090050-15ND
2014-09-024090050-17ND
2014-09-024090050-06ND
2014-09-164090486-01ND
2014-09-164090486-03ND
2014-09-164090486-07ND
2014-09-164090486-05ND
2014-09-164090486-09ND
2014-09-164090486-11ND
2014-09-304100028-01ND
2014-09-304100028-03ND
2014-09-304100028-07ND
2014-09-304100028-05ND
2014-09-304100028-09ND
2014-09-304100028-11ND
2014-10-134100463-01ND
2014-10-134100463-07ND
2014-10-134100463-03ND
2014-10-134100463-08ND
2014-10-134100463-09ND
2014-10-134100463-14ND
2014-10-134100463-16ND
2014-10-134100463-19ND
2014-10-134100463-18ND
2014-10-134100463-12ND
2014-10-134100463-24ND
2014-10-134100463-27ND
2014-10-134100463-10ND
2014-10-284100860-12ND
2014-10-284100860-11ND
2014-10-284100860-13ND
2014-10-284100860-01ND
2014-10-284100860-06ND
2014-10-284100860-04ND
2014-10-284100860-25ND
2014-10-284100860-26ND
2014-10-284100860-21ND
2014-10-284100860-19ND
2014-10-284100860-23ND
2014-10-284100860-17ND
2014-11-064110312-01ND
2014-11-104110313-07ND
2014-11-104110313-09ND
2014-11-104110313-11ND
2014-11-104110313-03ND
2014-11-104110313-04ND
2014-11-104110313-06ND
2014-11-104110313-01ND
2014-11-104110313-15ND
2014-11-104110313-12ND
2014-11-254110688-01ND
2014-11-254110688-03ND
2014-11-254110688-10ND
2014-11-254110688-07ND
2014-11-254110688-09ND
2014-11-254110688-12ND
2014-11-254110688-05ND
2014-12-084120262-01ND
2014-12-084120262-03ND
2014-12-084120262-04ND
2014-12-084120262-10ND
2014-12-084120262-11ND
2014-12-084120262-13ND
2014-12-084120262-07ND
2014-12-084120262-15ND
2014-12-084120262-05ND
2014-12-114120282-01ND
2014-12-15201412160614AMND
2014-12-15201412160312AMND
2014-12-15201412160712AMND
2014-12-15201412160731AMND
2014-12-15201412160710AMND
2014-12-15201412160626AMND
2014-12-15201412160703AMND
2014-12-15201412160366AMND
2014-12-17201412180416AMND
2014-12-17201412180364AMND
2014-12-17201412180398AMND
2014-12-17201412180314AMND
2014-12-17201412180430AMND
2014-12-17201412180335AMND
2014-12-17201412180307AMND
2014-12-234120589-01ND
2014-12-234120589-03ND
2014-12-234120589-10ND
2014-12-234120589-07ND
2014-12-234120589-09ND
2014-12-234120589-12ND
2014-12-234120589-05ND
2014-12-28201412300450AMND
2014-12-29201412300448AMND
2014-12-29201412300485AMND
2014-12-29201412300480AMND
2014-12-29201412300488AMND
2014-12-29201412300468AMND
2014-12-29201412300394AMND
2015-01-055010094-01ND
2015-01-055010094-06ND
2015-01-055010094-03ND
2015-01-055010094-07ND
2015-01-055010094-14ND
2015-01-055010094-19ND
2015-01-055010094-10ND
2015-01-055010094-12ND
2015-01-055010094-24ND
2015-01-055010094-08ND
2015-01-065010094-16ND
2015-01-065010094-18ND
2015-01-205010445-01ND
2015-01-205010445-10ND
2015-01-205010445-13ND
2015-01-205010445-06ND
2015-01-205010445-08ND
2015-01-205010445-17ND
2015-01-205010445-04ND
2015-06-04201506050379AMND
2015-06-04201506050454AMND
2015-06-04201506050201AMND
2015-06-04201506050442AMND
2015-09-23201509240493AMND
2016-03-156030554-01ND
2016-03-156030554-03ND
2016-03-156030554-05ND
2016-03-156030554-07ND
2016-03-156030554-08ND
2016-03-286030961-01ND