Strontium

City of Safford

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	0.332 ppb	10	10	0.200 ppb - 0.610 ppb
2014	0.486 ppb	10	10	0.240 ppb - 0.630 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
2013-12-09	201312110798AM	0.610 ppb
2013-12-09	201312110795AM	0.450 ppb
2013-12-09	201312120806AM	0.600 ppb
2013-12-09	201312110767AM	0.220 ppb
2013-12-09	201312100294AM	0.200 ppb
2013-12-09	201312100278AM	0.210 ppb
2013-12-09	201312100300AM	0.200 ppb
2013-12-09	201312100282AM	0.240 ppb
2013-12-09	201312100292AM	0.260 ppb
2013-12-09	201312110727AM	0.330 ppb
2014-06-17	201406190386AM	0.470 ppb
2014-06-17	201406190409AM	0.590 ppb
2014-06-17	201406190384AM	0.510 ppb
2014-06-17	201406190407AM	0.600 ppb
2014-06-17	201406190438AM	0.630 ppb
2014-06-17	201406200226AM	0.240 ppb
2014-06-17	201406190425AM	0.480 ppb
2014-06-17	201406190378AM	0.360 ppb
2014-06-17	201406190297AM	0.480 ppb
2014-06-17	201406190382AM	0.500 ppb