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EWG's Tap Water Database — 2021 UPDATE

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Molybdenum

California Water Service - Stockton

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

 

89

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.194 ppb355ND - 1.60 ppb
20150.675 ppb42ND - 1.70 ppb
20160.576 ppb440.291 ppb - 0.877 ppb
20170.663 ppb31310.205 ppb - 1.15 ppb
20180.595 ppb15150.176 ppb - 1.29 ppb
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
2014-01-09201401100156AMND
2014-01-09201401100115AMND
2014-01-09201401100106AMND
2014-01-09201401100145AMND
2014-01-14201401150331AMND
2014-01-14201401150648AM1.50 ppb
2014-01-14201401150353AMND
2014-01-14201401150485AMND
2014-01-14201401150369AMND
2014-01-14201401150321AM1.10 ppb
2014-01-16201401170406AMND
2014-01-16201401170451AMND
2014-01-16201401170464AMND
2014-01-22201401230166AMND
2014-04-21201404220358AMND
2014-04-21201404220216AM1.60 ppb
2014-04-21201404220289AMND
2014-04-21201404220224AMND
2014-07-07201407090855AMND
2014-07-08201407090776AMND
2014-07-08201407090708AMND
2014-07-08201407090755AMND
2014-07-08201407090789AMND
2014-07-08201407090752AMND
2014-07-08201407090769AMND
2014-07-14201407150352AMND
2014-07-15201407160565AMND
2014-07-15201407160593AM1.30 ppb
2014-07-15201407160582AM1.30 ppb
2014-07-23201407240447AMND
2014-08-27201408280741AMND
2014-10-08201410090372AMND
2014-10-08201410090297AMND
2014-10-08201410090337AMND
2014-11-12201411130683AMND
2015-01-07201501080582AM1.70 ppb
2015-01-08201501090540AMND
2015-06-03201506040496AM1.000 ppb
2015-09-16201509170573AMND
2016-08-155701-131-09540.291 ppb
2016-10-115701-131-11250.877 ppb
2016-10-185701-045-09330.422 ppb
2016-10-185701-028-09530.715 ppb
2017-01-065701-053-11200.887 ppb
2017-01-065701-045-11501.10 ppb
2017-01-065701-061-10450.578 ppb
2017-01-065701-028-12200.709 ppb
2017-01-095701-131-10400.407 ppb
2017-01-175701-131-10350.379 ppb
2017-02-025701-051-11200.764 ppb
2017-02-065701-131-09450.568 ppb
2017-02-065701-069-09350.434 ppb
2017-02-075701-045-11281.15 ppb
2017-02-075701-130-10230.578 ppb
2017-02-075701-060-14271.04 ppb
2017-02-075701-059-13591.10 ppb
2017-02-075701-053-13130.974 ppb
2017-05-015701-131-13020.539 ppb
2017-05-015701-069-12470.527 ppb
2017-05-035701-007-15160.657 ppb
2017-05-035701-051-13060.823 ppb
2017-05-035701-055-14270.840 ppb
2017-05-155701-131-10550.436 ppb
2017-05-225701-131-08500.213 ppb
2017-06-065701-130-15100.658 ppb
2017-07-175701-131-13240.312 ppb
2017-07-185701-028-13220.743 ppb
2017-07-195701-053-09250.891 ppb
2017-07-195701-061-10390.604 ppb
2017-07-195701-045-09351.14 ppb
2017-07-255701-015-11550.703 ppb
2017-09-185701-131-11520.249 ppb
2017-10-025701-131-13400.342 ppb
2017-11-285701-131-12480.205 ppb
2018-01-045701-028-11080.554 ppb
2018-01-045701-045-12461.02 ppb
2018-01-045701-053-13290.875 ppb
2018-01-045701-061-14280.412 ppb
2018-02-055701-069-14500.176 ppb
2018-02-055701-131-15000.183 ppb
2018-02-075701-130-15100.555 ppb
2018-02-075701-060-11300.886 ppb
2018-02-075701-059-12300.612 ppb
2018-02-075701-053-14100.736 ppb
2018-02-075701-045-10351.29 ppb
2018-04-095701-131-09250.393 ppb
2018-04-125701-133-10050.645 ppb
2018-06-255701-131-09300.322 ppb
2018-12-185701-131-13350.266 ppb