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EWG's Tap Water Database — 2019 UPDATE

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Trichlorofluoromethane

Sierra Madre Water Department

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.

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2012-05-079588-007-0915ND
2012-05-079588-006-0935ND
2012-05-079588-005-0840ND
2012-05-079588-004-0855ND
2012-05-079588-003-0830ND
2013-05-219588-007-1000ND
2013-05-219588-006-0940ND
2013-05-219588-005-0910ND
2013-05-219588-004-0925ND
2013-06-263761-003-0800ND
2013-06-279588-003-0805ND
2014-05-129588-007-1125ND
2014-05-129588-006-1055ND
2014-05-129588-005-1105ND
2014-05-129588-004-1045ND
2014-05-129588-003-1030ND
2015-05-139588-007-0840ND
2015-05-139588-006-1020ND
2015-05-139588-005-0940ND
2015-05-139588-004-1000ND
2015-05-139588-003-1115ND
2016-05-039588-007-0920ND
2016-05-039588-006-0900ND
2016-05-039588-005-0830ND
2016-05-039588-004-0845ND
2016-05-039588-003-0815ND
2017-05-039588-007-1010ND
2017-05-039588-006-0940ND
2017-05-039588-005-0930ND
2017-05-039588-004-1045ND
2017-05-039588-003-1030ND