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EWG's Tap Water Database — 2021 UPDATE

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Molybdenum

Philadelphia Water Department

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.

MORE ABOUT THIS CONTAMINANT

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.150 ppb182ND - 1.40 ppb
2014ND60ND
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
2013-06-171032996001ND
2013-06-171032996011ND
2013-06-171032996007ND
2013-06-271034365005ND
2013-06-271034365003ND
2013-06-271034365001ND
2013-08-051040909010ND
2013-08-051040909007ND
2013-08-051040909001ND
2013-08-051040909005ND
2013-08-051040909003ND
2013-08-051040909013ND
2013-11-0510573350031.30 ppb
2013-11-0510573350131.40 ppb
2013-11-051057335007ND
2013-11-051057335010ND
2013-12-231065006003ND
2013-12-231065006001ND
2014-02-04201402060401AMND
2014-02-04201402060429AMND
2014-02-04201402060425AMND
2014-02-24201402250500AMND
2014-02-24201402250498AMND
2014-02-24201402250496AMND