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EWG's Tap Water Database — 2019 UPDATE

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Dichlorodifluoromethane

San Fernando Water Department

Dichlorodifluoromethane (Freon-12) 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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND90ND
2014ND60ND
2015ND30ND
2016ND30ND
2017ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-189590-003-1000ND
2012-01-189590-004-0920ND
2012-01-189590-002-1035ND
2012-09-109590-004-0910ND
2013-01-099590-003-0915ND
2013-01-099590-004-0830ND
2013-01-099590-002-0940ND
2013-05-179590-004-0735ND
2013-05-179590-002-0825ND
2013-05-179590-003-0905ND
2013-08-079590-003-1040ND
2013-08-079590-002-1000ND
2013-08-079590-004-0900ND
2014-01-229590-003-0950ND
2014-01-229590-002-0905ND
2014-01-229590-004-0840ND
2014-07-159590-004-1000ND
2014-07-159590-003-1100ND
2014-07-159590-002-0900ND
2015-01-219590-004-0905ND
2015-01-219590-003-1015ND
2015-01-219590-002-0820ND
2016-02-179590-004-0900ND
2016-02-179590-002-0920ND
2016-04-139590-004-0820ND
2017-01-259590-004-0800ND
2017-01-259590-003-0855ND
2017-01-259590-002-0715ND
2017-04-059590-004-0920ND
2017-10-249590-004-0715ND