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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Olean City

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND50ND
2016ND70ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-01-08POC - 1/14 - PLAND
2014-01-08POC - 1/14 - M37ND
2015-01-071/15 POC - PLANTND
2015-01-071/14 M37/38 POSTND
2015-03-173/15 POC-M37/38ND
2015-07-157/15 POC M37/38ND
2015-09-159/15 POC-M37/38ND
2016-01-061/16 POC20160107ND
2016-01-061/16 POC20160107ND
2016-03-223/16 POC20160323ND
2016-05-045/16 POC20160421ND
2016-07-067/16 POC20160628ND
2016-09-069/16 POC20160825ND
2016-12-0512/16POC20161026ND
2017-01-10201701111344ND
2017-01-10201701111342ND
2018-01-087039940004ND
2018-01-087039940005ND
2019-01-087075972004ND
2019-01-087075972005ND