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EWG's Tap Water Database — 2021 UPDATE

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Molybdenum

City of Redding

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

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.181 ppb274ND - 1.40 ppb
20140.180 ppb152ND - 1.50 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
2013-06-172844836ND
2013-06-1728443111.000 ppb
2013-06-172844717ND
2013-06-172844218ND
2013-06-172844226ND
2013-06-172844231ND
2013-06-1728448491.40 ppb
2013-06-172844222ND
2013-06-172844326ND
2013-06-1728446721.40 ppb
2013-06-172844867ND
2013-06-172844827ND
2013-06-172844335ND
2013-06-172844353ND
2013-06-172844817ND
2013-06-172844693ND
2013-06-1728447081.10 ppb
2013-09-112896025ND
2013-09-122896104ND
2013-09-122896043ND
2013-09-122896096ND
2013-12-062941965ND
2013-12-062941987ND
2013-12-062941995ND
2013-12-062941947ND
2013-12-062941999ND
2013-12-062941956ND
2014-01-302965633ND
2014-03-202995941ND
2014-03-202995964ND
2014-03-202995842ND
2014-03-202996212ND
2014-03-202995707ND
2014-03-202996238ND
2014-03-2029957861.20 ppb
2014-06-123044738ND
2014-06-123044726ND
2014-06-1230444441.50 ppb
2014-06-123044487ND
2014-06-123044473ND
2014-06-123044540ND
2014-06-123044824ND