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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

City of Conroe

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
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
2014-05-28Q1418029005ND
2014-05-28Q1418029001ND
2014-05-28Q1418029009ND
2014-05-28Q1418029017ND
2014-05-28Q1418029021ND
2014-05-28Q1418029013ND
2014-05-29Q1418221005ND
2014-05-29Q1418221001ND
2014-05-29Q1418221009ND
2014-11-18Q1456289029ND
2014-11-18Q1456289033ND
2014-11-18Q1456289021ND
2014-11-18Q1456740005ND
2014-11-18Q1456289005ND
2014-11-18Q1456289025ND
2014-11-18Q1456289017ND
2014-11-18Q1456289013ND
2014-11-19Q1456740001ND