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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Duluth

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-09-152029324003ND
2014-12-092044215003ND
2015-03-102058599003ND
2015-06-232078808003ND