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EWG's Tap Water Database — 2021 UPDATE

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Molybdenum

City of Tempe

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

 

34

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.994 ppb1710ND - 1.90 ppb
20141.19 ppb1710ND - 2.80 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
2013-07-2313071921.70 ppb
2013-07-2313071881.80 ppb
2013-07-2313071911.80 ppb
2013-07-2313071901.90 ppb
2013-07-2313071891.90 ppb
2013-07-311307028ND
2013-08-071308050ND
2013-08-071308048ND
2013-08-071308049ND
2013-08-0813080581.000 ppb
2013-08-081308057ND
2013-08-081308059ND
2013-08-221308198ND
2013-10-2213101971.60 ppb
2013-10-2213101951.60 ppb
2013-10-2213101941.80 ppb
2013-10-2213101961.80 ppb
2014-01-0214010012.60 ppb
2014-01-141401059ND
2014-01-141401061ND
2014-01-1414010582.50 ppb
2014-01-141401054ND
2014-01-1414010522.30 ppb
2014-01-1414010531.60 ppb
2014-01-141401055ND
2014-01-1414010452.30 ppb
2014-01-141401057ND
2014-01-141401056ND
2014-01-1514010621.10 ppb
2014-01-151401060ND
2014-04-2314041732.00 ppb
2014-04-2314041751.10 ppb
2014-04-2314041711.90 ppb
2014-04-2814041722.80 ppb