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EWG's Tap Water Database — 2021 UPDATE

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Trichlorotrifluoroethane

Golden State Water Company (GSWC) - Norwalk

Trichlorotrifluoroethane (Freon 113) 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.

 

45

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND50ND
2015ND50ND
2016ND60ND
2017ND150ND
2018ND80ND
2019ND60ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 4,000 ppb

The EWG Health Guideline of 4,000 ppb for trichlorotrifluoroethane 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
2014-02-042706-010-1225ND
2014-02-042706-016-0900ND
2014-05-062706-016-1028ND
2014-08-062706-016-0940ND
2014-11-042706-016-1054ND
2015-02-022706-010-1023ND
2015-02-032706-016-1152ND
2015-05-072706-016-1358ND
2015-08-042706-016-0821ND
2015-11-042706-016-1304ND
2016-05-022706-028-1147ND
2016-05-022706-032-0751ND
2016-05-042706-016-0910ND
2016-05-042706-016-0921ND
2016-08-022706-016-1146ND
2016-11-082706-016-1303ND
2017-01-039590-016-1315ND
2017-01-049590-028-1216ND
2017-01-049590-032-0828ND
2017-01-119590-032-0936ND
2017-01-119590-028-1057ND
2017-01-179590-016-1232ND
2017-01-189590-032-1354ND
2017-01-189590-028-1306ND
2017-01-239590-032-1212ND
2017-02-099590-010-1025ND
2017-02-139590-016-0850ND
2017-02-279590-028-1013ND
2017-05-039590-016-0920ND
2017-08-019590-016-1029ND
2017-11-099590-016-1103ND
2018-02-089590-016-1401ND
2018-02-129590-010-1230ND
2018-03-079590-016-1407ND
2018-03-079590-032-1304ND
2018-03-079590-028-1338ND
2018-05-029590-016-1147ND
2018-09-129590-016-1156ND
2018-11-069590-016-1203ND
2019-02-119590-032-1330ND
2019-02-119590-016-1054ND
2019-02-129590-028-1333ND
2019-05-089590-016-1140ND
2019-08-069590-032-1220ND
2019-11-069590-032-1235ND