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EWG's Tap Water Database — 2021 UPDATE

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Molybdenum

Westerly 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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
20150.344 ppb162ND - 2.80 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
2015-03-3032158892.80 ppb
2015-03-303215800ND
2015-03-303215832ND
2015-03-303215976ND
2015-03-303215898ND
2015-03-303215791ND
2015-03-303215809ND
2015-03-303215842ND
2015-09-163324208ND
2015-09-163324038ND
2015-09-163323690ND
2015-09-163324223ND
2015-09-1633237132.70 ppb
2015-09-163323744ND
2015-09-163323879ND
2015-09-163323888ND