Trichlorofluoromethane

Sparta Twp Water Utility - Lake Mohawk

Trichlorofluoromethane (Freon 11) is a refrigerant, solvent and aerosol propellant banned in 2000 under the Montreal Protocol because of its ozone-depleting properties. Freons can cause heart, nervous system and liver damage.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2013	N/A	0	N/A
2014	ND	13	ND
2015	ND	2	ND
2016	ND	2	ND
2017	ND	13	ND
2018	ND	2	ND
2019	ND	3	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1,300 ppb

The EWG Health Guideline of 1,300 ppb for trichlorofluoromethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-01-30	340130060	ND
2014-02-20	340220059.3	ND
2014-05-01	340501089	ND
2014-05-01	340501088	ND
2014-05-01	340501086	ND
2014-05-01	340501087	ND
2014-08-26	340826104	ND
2014-08-26	340826103	ND
2014-08-26	340826102	ND
2014-08-26	340826101	ND
2014-10-30	341030020	ND
2014-11-12	341112067	ND
2014-11-12	341112063.6	ND
2015-04-23	350424031	ND
2015-10-20	351020157	ND
2016-04-27	360427062	ND
2016-11-29	361129017	ND
2017-01-19	370119078	ND
2017-01-19	370119079	ND
2017-01-19	370119081	ND
2017-01-19	370119080	ND
2017-06-08	370608201	ND
2017-06-08	370608200	ND
2017-06-08	370608202	ND
2017-06-08	370608199	ND
2017-07-27	370727161	ND
2017-07-27	370727160	ND
2017-08-07	370807099	ND
2017-08-07	370807100	ND
2017-10-20	371020047	ND
2018-06-13	380613219	ND
2018-10-25	381025133	ND
2019-06-13	390613110	ND
2019-06-13	390613109	ND
2019-10-30	391030108	ND