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EWG's Tap Water Database — 2021 UPDATE

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Molybdenum

Metropolitan DWID

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

 

88

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.934 ppb4425ND - 3.50 ppb
20150.877 ppb4424ND - 3.80 ppb
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
2014-08-06201408070495AM3.50 ppb
2014-08-06201408070497AMND
2014-08-11201408120151AM2.00 ppb
2014-08-11201408120149AM1.90 ppb
2014-08-11201408120141AM1.000 ppb
2014-08-11201408120139AM1.10 ppb
2014-08-11201408120143AM1.40 ppb
2014-08-11201408120145AM1.90 ppb
2014-08-11201408120137AM1.20 ppb
2014-08-11201408120147AM1.90 ppb
2014-08-12201408130504AM1.20 ppb
2014-08-12201408130506AM2.00 ppb
2014-08-12201408130500AM1.20 ppb
2014-08-12201408130512AM1.000 ppb
2014-08-12201408130502AM1.60 ppb
2014-08-12201408130498AM1.60 ppb
2014-08-12201408130508AMND
2014-08-12201408130510AMND
2014-08-14201408150338AMND
2014-08-14201408150340AMND
2014-08-14201408150342AMND
2014-08-14201408150336AMND
2014-08-14201408150334AMND
2014-08-18201408190663AM2.00 ppb
2014-08-18201408190665AM2.40 ppb
2014-08-18201408190496AMND
2014-08-18201408190667AM2.20 ppb
2014-08-18201408190498AM1.50 ppb
2014-08-18201408190500AMND
2014-08-19201408200415AMND
2014-08-19201408200417AMND
2014-08-19201408200419AMND
2014-08-19201408200439AMND
2014-08-19201408200435AMND
2014-08-19201408200433AMND
2014-08-19201408200437AMND
2014-08-20201408210492AMND
2014-08-20201408210482AM1.50 ppb
2014-08-20201408210488AMND
2014-08-20201408210484AM1.000 ppb
2014-08-20201408210480AM2.10 ppb
2014-08-20201408210490AM1.40 ppb
2014-08-25201408260297AM1.40 ppb
2014-09-22201409230534AM1.10 ppb
2015-02-17201502180770AMND
2015-02-17201502180768AM1.20 ppb
2015-02-17201502180791AM1.40 ppb
2015-02-17201502180795AM1.70 ppb
2015-02-17201502180797AM1.10 ppb
2015-02-17201502180793AM1.60 ppb
2015-02-17201502180766AMND
2015-02-18201502190761AM2.00 ppb
2015-02-18201502190975AM1.000 ppb
2015-02-18201502190763AM2.00 ppb
2015-02-18201502190977AMND
2015-02-18201502190757AM1.40 ppb
2015-02-18201502190759AM2.00 ppb
2015-02-19201502200209AMND
2015-02-19201502200386AMND
2015-02-19201502200384AMND
2015-02-19201502200207AMND
2015-02-19201502200213AMND
2015-02-19201502200211AMND
2015-02-19201502200382AMND
2015-02-23201502240514AM1.80 ppb
2015-02-23201502240510AM1.80 ppb
2015-02-23201502240508AM1.10 ppb
2015-02-23201502240504AM1.000 ppb
2015-02-23201502240502AM1.000 ppb
2015-02-23201502240506AMND
2015-02-23201502240512AM1.80 ppb
2015-02-23201502240516AM1.80 ppb
2015-02-24201502250889AMND
2015-02-24201502250887AM3.80 ppb
2015-02-24201502250588AM1.80 ppb
2015-02-24201502250592AM1.80 ppb
2015-02-24201502250590AM1.20 ppb
2015-02-24201502250598AMND
2015-02-24201502250600AMND
2015-02-24201502250602AMND
2015-02-24201502250596AM1.50 ppb
2015-02-24201502250594AM1.20 ppb
2015-02-25201502260401AMND
2015-02-25201502260399AMND
2015-02-25201502260397AMND
2015-02-25201502260403AMND
2015-02-25201502260405AMND
2015-08-31201509010996AM1.60 ppb