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EWG's Tap Water Database — 2021 UPDATE

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Strontium

Golden State Water Company - Cordova

Strontium is a metal that accumulates in the bones. Radioactive strontium-90 can cause bone cancer and leukemia, and any form of strontium at high doses can harm bone health.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.266 ppb20200.0490 ppb - 0.890 ppb
20140.0710 ppb330.0490 ppb - 0.110 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 1,500 ppb

The EWG Health Guideline of 1,500 ppb for strontium was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against harm to bones.

ppb = parts per billion

All test results

Date Lab ID Result
2013-06-18201306190229AM0.180 ppb
2013-06-18201306190225AM0.830 ppb
2013-06-18201306190231AM0.160 ppb
2013-06-18201306190220AM0.0890 ppb
2013-06-18201306190216AM0.890 ppb
2013-06-18201306190211AM0.1000 ppb
2013-06-18201306190209AM0.180 ppb
2013-06-18201306190214AM0.230 ppb
2013-06-18201306190218AM0.510 ppb
2013-09-17201309180488AM0.0560 ppb
2013-09-17201309180507AM0.0490 ppb
2013-09-17201309180511AM0.120 ppb
2013-12-10201312110722AM0.150 ppb
2013-12-10201312110875AM0.160 ppb
2013-12-10201312110707AM0.330 ppb
2013-12-10201312110724AM0.170 ppb
2013-12-10201312110705AM0.190 ppb
2013-12-10201312110709AM0.0910 ppb
2013-12-10201312110691AM0.400 ppb
2013-12-10201312110877AM0.440 ppb
2014-03-25201403260291AM0.0540 ppb
2014-03-25201403260381AM0.110 ppb
2014-03-25201403260334AM0.0490 ppb