Strontium

Alameda County Water District

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.

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	0.204 ppb	26	26	0.0130 ppb - 0.400 ppb
2015	N/A	0	0	N/A
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 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
2014-03-24	201403250273AM	0.190 ppb
2014-03-24	201403250222AM	0.0130 ppb
2014-03-24	201403250220AM	0.190 ppb
2014-03-24	201403250197AM	0.270 ppb
2014-03-24	201403250270AM	0.160 ppb
2014-03-24	201403250195AM	0.130 ppb
2014-03-24	201403250212AM	0.0920 ppb
2014-06-02	201406030458AM	0.380 ppb
2014-06-02	201406030456AM	0.0130 ppb
2014-06-02	201406030452AM	0.220 ppb
2014-06-02	201406030464AM	0.360 ppb
2014-06-02	201406030462AM	0.170 ppb
2014-06-02	201406030460AM	0.200 ppb
2014-06-02	201406030454AM	0.210 ppb
2014-09-08	201409090364AM	0.330 ppb
2014-09-08	201409090360AM	0.350 ppb
2014-09-08	201409090386AM	0.140 ppb
2014-09-08	201409090362AM	0.250 ppb
2014-09-08	201409090358AM	0.0160 ppb
2014-09-08	201409090356AM	0.290 ppb
2014-09-08	201409090384AM	0.120 ppb
2014-12-08	201412090325AM	0.400 ppb
2014-12-08	201412090323AM	0.210 ppb
2014-12-08	201412090319AM	0.0170 ppb
2014-12-08	201412090317AM	0.190 ppb
2014-12-08	201412090321AM	0.380 ppb