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EWG's Tap Water Database — 2021 UPDATE

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Molybdenum

D.C. Water and Sewer Authority

Molybdenum is a metal that occurs naturally in soil, minerals and water. People who ingest large amounts can have increased levels of uric acid and gout-like symptoms.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.281 ppb164ND - 1.20 ppb
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 40 ppb

The EWG Health Guideline of 40 ppb for molybdenum was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against metabolic changes and excess formation of uric acid in the blood.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-27201401280223AMND
2014-01-27201401280250AMND
2014-01-27201401280270AMND
2014-01-27201401280258AMND
2014-04-23201404240519AMND
2014-04-23201404240338AMND
2014-04-23201404240454AMND
2014-04-23201404240350AMND
2014-07-23201407240427AMND
2014-07-23201407240279AMND
2014-07-23201407240581AMND
2014-07-23201407240326AMND
2014-10-15201410230502AM1.10 ppb
2014-10-22201410230304AM1.20 ppb
2014-10-22201410230323AM1.20 ppb
2014-10-22201410230378AM1.000 ppb