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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Los Angeles County WW District 4 & 34-Lancaster

Chlorodifluoromethane (Freon 22) 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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34

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND160ND
2014ND180ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2013-11-14201311150378AMND
2013-11-18201311210815AMND
2013-11-18201311210801AMND
2013-11-18201311200611AMND
2013-11-18201311200623AMND
2013-11-19201311220610AMND
2013-11-19201311220608AMND
2013-11-19201311250062AMND
2013-11-19201311250078AMND
2013-11-20201312020193AMND
2013-11-20201311270082AMND
2013-11-20201312020184AMND
2013-11-20201311270080AMND
2013-11-25201312030252AMND
2013-11-25201312030254AMND
2013-11-25201312040648AMND
2014-02-13201402140365AMND
2014-05-13201405160379AMND
2014-05-13201405160338AMND
2014-05-13201405160381AMND
2014-05-14201405190271AMND
2014-05-14201405160332AMND
2014-05-14201405160336AMND
2014-05-14201405160334AMND
2014-05-14201405220244AMND
2014-05-14201405190269AMND
2014-05-20201405220248AMND
2014-05-20201405230366AMND
2014-05-21201405230356AMND
2014-05-21201405230368AMND
2014-05-27201405290650AMND
2014-05-27201405290654AMND
2014-05-28201405290636AMND
2014-08-07201408120547AMND