Strontium

Missouri American St. Louis County & St. Charles County

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	0.110 ppb	40	40	0.0269 ppb - 0.220 ppb
2014	N/A	0	0	N/A
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
2013-02-05	21020101	0.129 ppb
2013-02-05	21018301	0.131 ppb
2013-02-05	21018101	0.139 ppb
2013-02-05	21019901	0.129 ppb
2013-02-06	21017401	0.0284 ppb
2013-02-06	21016401	0.0269 ppb
2013-02-06	21019501	0.170 ppb
2013-02-06	21019301	0.127 ppb
2013-02-06	21089101	0.0322 ppb
2013-02-06	21017001	0.0548 ppb
2013-05-09	21797001	0.0354 ppb
2013-05-09	21801201	0.104 ppb
2013-05-09	21797501	0.0326 ppb
2013-05-09	21801001	0.108 ppb
2013-05-09	21798101	0.0610 ppb
2013-05-09	21799401	0.106 ppb
2013-05-09	21799201	0.104 ppb
2013-05-09	21800601	0.0897 ppb
2013-05-09	21798501	0.0298 ppb
2013-05-09	21800401	0.103 ppb
2013-08-08	23171501	0.0417 ppb
2013-08-08	23174601	0.183 ppb
2013-08-08	23172801	0.172 ppb
2013-08-08	23174401	0.161 ppb
2013-08-08	23170901	0.0347 ppb
2013-08-08	23171901	0.0347 ppb
2013-08-08	23170501	0.0372 ppb
2013-08-08	23174001	0.202 ppb
2013-08-08	23173801	0.180 ppb
2013-08-08	23172601	0.201 ppb
2013-11-05	23931601	0.0321 ppb
2013-11-05	23932201	0.0789 ppb
2013-11-05	23933501	0.204 ppb
2013-11-05	23934701	0.220 ppb
2013-11-05	23931101	0.0300 ppb
2013-11-05	23934501	0.220 ppb
2013-11-05	23933301	0.205 ppb
2013-11-06	23935301	0.211 ppb
2013-11-06	23932601	0.0282 ppb
2013-11-06	23935101	0.194 ppb