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EWG's Tap Water Database — 2021 UPDATE

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Molybdenum

Truckee Meadows Water 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.

MORE ABOUT THIS CONTAMINANT

 

45

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20131.31 ppb3424ND - 4.50 ppb
20141.16 ppb119ND - 2.50 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
2013-05-20201305210061AM1.70 ppb
2013-05-20201305210066AM1.000 ppb
2013-05-20201305210275AM1.30 ppb
2013-05-20201305210059AMND
2013-05-22201305230289AM1.60 ppb
2013-05-22201305230342AM2.00 ppb
2013-05-22201305230335AMND
2013-05-22201305230338AM1.30 ppb
2013-06-04201306050182AMND
2013-06-04201306050256AMND
2013-06-04201306050241AMND
2013-06-11201306120213AM1.20 ppb
2013-06-11201306120169AMND
2013-06-11201306120227AMND
2013-06-11201306120163AM4.50 ppb
2013-06-11201306120229AM1.20 ppb
2013-06-11201306120172AMND
2013-06-19201306200237AM4.00 ppb
2013-06-19201306200243AMND
2013-06-19201306200250AM1.30 ppb
2013-06-19201306200241AM1.40 ppb
2013-06-19201306200268AM1.90 ppb
2013-06-24201306250077AMND
2013-06-25201306260231AM1.40 ppb
2013-06-25201306260226AM1.40 ppb
2013-06-27201306280176AM1.60 ppb
2013-07-11201307120477AM2.00 ppb
2013-08-29201309200281AM1.80 ppb
2013-09-17201309200279AM2.10 ppb
2013-09-17201309200267AM2.00 ppb
2013-09-17201309200263AM2.80 ppb
2013-11-25201311270060AM1.40 ppb
2013-12-16201312180499AM2.00 ppb
2013-12-17201312180531AM1.50 ppb
2014-03-05201403070277AM1.000 ppb
2014-03-05201403070313AM1.10 ppb
2014-04-22201404250176AM1.40 ppb
2014-04-22201404250189AM1.000 ppb
2014-04-22201404250157AMND
2014-04-22201404250162AMND
2014-04-29201405020169AM2.50 ppb
2014-04-29201405020257AM1.20 ppb
2014-04-29201405020173AM1.10 ppb
2014-04-29201405020265AM1.80 ppb
2014-06-09201406110932AM1.70 ppb