Molybdenum

City of Tracy

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

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	1.84 ppb	9	8	ND - 4.20 ppb
2015	1.29 ppb	14	9	ND - 3.90 ppb
2016	N/A	0	0	N/A
2017	N/A	0	0	N/A
2018	N/A	0	0	N/A
2019	N/A	0	0	N/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
2014-11-06	201411070279AM	1.80 ppb
2014-11-06	201411070277AM	ND
2014-11-06	201411070275AM	1.30 ppb
2014-11-06	201411070273AM	1.30 ppb
2014-11-13	201411150147AM	1.60 ppb
2014-11-13	201411140830AM	2.90 ppb
2014-11-13	201411140437AM	1.80 ppb
2014-11-20	201411210460AM	1.70 ppb
2014-11-20	201411210468AM	4.20 ppb
2015-02-24	201502250690AM	ND
2015-02-25	201502260352AM	ND
2015-05-06	201505070652AM	ND
2015-05-06	201505070499AM	ND
2015-05-06	201505070341AM	1.30 ppb
2015-05-06	201505070461AM	1.90 ppb
2015-05-06	201505070434AM	2.50 ppb
2015-05-06	201505070543AM	1.40 ppb
2015-05-18	201505190489AM	1.30 ppb
2015-05-18	201505190491AM	3.90 ppb
2015-05-27	201505280389AM	1.80 ppb
2015-08-27	201508280291AM	ND
2015-08-27	201508280260AM	2.00 ppb
2015-08-28	201508280258AM	2.00 ppb