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EWG's Tap Water Database — 2021 UPDATE

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Molybdenum

Missouri American St. Louis County & St. Charles County

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.

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20131.94 ppb4034ND - 4.20 ppb
2014N/A00N/A
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
2013-02-05210199011.70 ppb
2013-02-05210183011.80 ppb
2013-02-05210181012.10 ppb
2013-02-05210201011.80 ppb
2013-02-06210891011.60 ppb
2013-02-06210195012.50 ppb
2013-02-06210174011.40 ppb
2013-02-06210164011.90 ppb
2013-02-06210193011.80 ppb
2013-02-06210170011.50 ppb
2013-05-09217994011.70 ppb
2013-05-09218010011.70 ppb
2013-05-09218012011.60 ppb
2013-05-09217970011.40 ppb
2013-05-09218006011.20 ppb
2013-05-09218004011.60 ppb
2013-05-09217981011.50 ppb
2013-05-09217992011.70 ppb
2013-05-09217975011.40 ppb
2013-05-09217985011.20 ppb
2013-08-08231746013.40 ppb
2013-08-0823170901ND
2013-08-08231728013.10 ppb
2013-08-08231744012.90 ppb
2013-08-08231740014.20 ppb
2013-08-0823170501ND
2013-08-08231738013.40 ppb
2013-08-08231726013.70 ppb
2013-08-0823171501ND
2013-08-0823171901ND
2013-11-05239322011.90 ppb
2013-11-0523931101ND
2013-11-05239347013.80 ppb
2013-11-05239345013.80 ppb
2013-11-05239333013.30 ppb
2013-11-05239335013.40 ppb
2013-11-0523931601ND
2013-11-06239353013.20 ppb
2013-11-06239326011.10 ppb
2013-11-06239351013.30 ppb