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EWG's Tap Water Database — 2021 UPDATE

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Caffeine

D.C. Water and Sewer Authority

NOTE: D.C. Water and Sewer Authority purchases water from Washington Aqueduct Division. which is required to test for caffeine. Sample information shown below was taken by Washington Aqueduct Division..

Caffeine, from coffee and other beverages, is a key indicator of water contamination from wastewater effluent.

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

All test results

NOTE: D.C. Water and Sewer Authority purchases water from Washington Aqueduct Division. which is required to test for caffeine. Sample information shown below was taken by Washington Aqueduct Division..

Date Lab ID Result