Strontium

City of Flagstaff

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
2013	0.0730 ppb	18	18	0.0340 ppb - 0.140 ppb
2014	0.0612 ppb	25	25	0.0290 ppb - 0.110 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
2013-10-23	201310240398AM	0.0660 ppb
2013-10-23	201310240365AM	0.0350 ppb
2013-10-24	201310250063AM	0.140 ppb
2013-10-24	201310250096AM	0.0770 ppb
2013-10-24	201310250100AM	0.0930 ppb
2013-10-24	201310250103AM	0.0970 ppb
2013-10-24	201310250094AM	0.0830 ppb
2013-10-24	201310250090AM	0.0860 ppb
2013-10-24	201310250083AM	0.0630 ppb
2013-10-24	201310250061AM	0.0440 ppb
2013-10-29	201310300068AM	0.0770 ppb
2013-10-29	201310300042AM	0.0680 ppb
2013-10-29	201310300044AM	0.0340 ppb
2013-10-29	201310300118AM	0.0540 ppb
2013-10-30	201310310165AM	0.0870 ppb
2013-10-30	201310310113AM	0.0730 ppb
2013-10-31	201311010185AM	0.0650 ppb
2013-10-31	201311010176AM	0.0720 ppb
2014-01-29	201401300212AM	0.0470 ppb
2014-01-29	201401300186AM	0.0740 ppb
2014-01-29	201401300194AM	0.0430 ppb
2014-04-30	201405020187AM	0.1000 ppb
2014-04-30	201405020261AM	0.0350 ppb
2014-04-30	201405020183AM	0.0580 ppb
2014-04-30	201405020179AM	0.0650 ppb
2014-04-30	201405020177AM	0.0620 ppb
2014-04-30	201405020189AM	0.0780 ppb
2014-04-30	201405020165AM	0.110 ppb
2014-04-30	201405020267AM	0.0800 ppb
2014-04-30	201405020259AM	0.0990 ppb
2014-04-30	201405020263AM	0.0360 ppb
2014-04-30	201405020163AM	0.0500 ppb
2014-04-30	201405020175AM	0.0710 ppb
2014-05-02	201405060313AM	0.0350 ppb
2014-05-02	201405060311AM	0.0510 ppb
2014-05-29	201405300241AM	0.0680 ppb
2014-05-29	201405300269AM	0.0510 ppb
2014-06-12	201406130272AM	0.0620 ppb
2014-06-12	201406130296AM	0.0740 ppb
2014-07-17	201407180230AM	0.0410 ppb
2014-07-17	201407180226AM	0.0570 ppb
2014-07-17	201407180221AM	0.0290 ppb
2014-07-17	201407180219AM	0.0530 ppb