Strontium

City of Richland

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	0.133 ppb	18	18	0.0637 ppb - 0.365 ppb
2015	0.0987 ppb	6	6	0.0860 ppb - 0.113 ppb
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
2014-06-03	WA97-SE1-14-1012	0.247 ppb
2014-06-03	WA97-SE1-14-1012	0.0816 ppb
2014-06-03	WA97-SE1-14-1012	0.0734 ppb
2014-06-03	WA97-SE1-14-1012	0.0776 ppb
2014-06-03	WA97-SE1-14-1012	0.365 ppb
2014-06-03	WA97-SE1-14-1012	0.0637 ppb
2014-06-03	WA97-SE1-14-1012	0.0741 ppb
2014-06-03	WA97-SE1-14-1012	0.0812 ppb
2014-09-09	WA97-SE2-14-1785	0.101 ppb
2014-09-09	WA97-SE2-14-1785	0.0830 ppb
2014-09-09	WA97-SE2-14-1785	0.322 ppb
2014-09-09	WA97-SE2-14-1785	0.109 ppb
2014-12-02	WA97-SE3-14-2365	0.111 ppb
2014-12-02	WA97-SE3-14-2365	0.0950 ppb
2014-12-02	WA97-SE3-14-2365	0.0810 ppb
2014-12-02	WA97-SE3-14-2365	0.0798 ppb
2014-12-02	WA97-SE3-14-2365	0.269 ppb
2014-12-02	WA97-SE3-14-2365	0.0833 ppb
2015-01-13	WA97-SE3-15-0078	0.113 ppb
2015-01-13	WA97-SE2-15-0078	0.110 ppb
2015-02-24	WA97-SE4-15-0352	0.0978 ppb
2015-03-10	WA97-SE4-15-0449	0.0860 ppb
2015-03-10	WA97-SE4-15-0449	0.0920 ppb
2015-03-10	WA97-SE4-15-0449	0.0933 ppb