Molybdenum

San Jose Water Company

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
2013	0.753 ppb	30	16	ND - 2.50 ppb
2014	N/A	0	0	N/A
2015	0.550 ppb	2	1	ND - 1.10 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
2013-08-05	2872047	ND
2013-08-05	2872073	1.50 ppb
2013-08-05	2871980	ND
2013-08-05	2871996	1.70 ppb
2013-08-05	2872013	2.50 ppb
2013-08-12	2876808	ND
2013-08-12	2876814	1.000 ppb
2013-08-12	2876651	1.40 ppb
2013-08-12	2876647	1.10 ppb
2013-08-12	2876655	ND
2013-08-19	2882255	ND
2013-08-19	2882208	1.80 ppb
2013-08-19	2882279	ND
2013-08-19	2883555	ND
2013-08-19	2883566	ND
2013-08-26	2886344	ND
2013-08-26	2886323	ND
2013-08-26	2886355	ND
2013-08-27	2886934	2.00 ppb
2013-08-28	2889124	1.10 ppb
2013-09-20	2902774	1.10 ppb
2013-09-23	2902777	ND
2013-11-06	2927581	1.20 ppb
2013-11-06	2927577	1.20 ppb
2013-11-06	2927625	1.20 ppb
2013-11-06	2927585	1.30 ppb
2013-11-06	2927589	ND
2013-11-06	2927649	ND
2013-11-06	2927603	1.30 ppb
2013-11-06	2927614	1.20 ppb
2015-02-11	3189333	1.10 ppb
2015-02-11	3189325	ND