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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

City of Alvin

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-08-2026758301ND
2014-08-2626758201ND
2014-09-2227336701ND
2015-02-0428175101ND
2015-02-0928175601ND
2015-02-1028175501ND