Strontium

City of Post Falls

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	0.0721 ppb	12	12	0.0511 ppb - 0.0885 ppb
2014	0.0795 ppb	12	12	0.0695 ppb - 0.0868 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
2013-11-14	131118001-004	0.0521 ppb
2013-11-14	131118001-012	0.0784 ppb
2013-11-14	131118001-005	0.0533 ppb
2013-11-14	131118001-003	0.0834 ppb
2013-11-14	131118001-001	0.0834 ppb
2013-11-14	131118001-011	0.0885 ppb
2013-11-14	131118001-009	0.0839 ppb
2013-11-14	131118001-010	0.0723 ppb
2013-11-14	131118001-006	0.0839 ppb
2013-11-14	131118001-008	0.0511 ppb
2013-11-14	131118001-007	0.0831 ppb
2013-11-14	131118001-002	0.0518 ppb
2014-05-12	140513061-005	0.0864 ppb
2014-05-12	140513061-006	0.0767 ppb
2014-05-12	140513061-003	0.0868 ppb
2014-05-12	140513061-002	0.0859 ppb
2014-05-13	140513061-009	0.0778 ppb
2014-05-13	140513061-012	0.0759 ppb
2014-05-13	140513061-001	0.0793 ppb
2014-05-13	140513061-008	0.0867 ppb
2014-05-13	140513061-007	0.0799 ppb
2014-05-13	140513061-004	0.0695 ppb
2014-05-13	140513061-010	0.0714 ppb
2014-05-13	140513061-011	0.0771 ppb