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EWG's Tap Water Database — 2021 UPDATE

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4,4'-dde

Yale, City of

 

3

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND10ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-09-15LLF38364ND
2014-09-16LLF38833ND
2018-08-21LLI00533ND