Strontium

Rockford

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	0.128 ppb	22	22	0.0489 ppb - 0.396 ppb
2015	0.129 ppb	32	32	0.0465 ppb - 0.385 ppb
2016	N/A	0	0	N/A
2017	N/A	0	0	N/A
2018	93.5 ppb	6	6	47.5 ppb - 143.0 ppb
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
2014-07-08	801675-11773	0.396 ppb
2014-07-08	801679-11773	0.0769 ppb
2014-07-08	801400-11786	0.162 ppb
2014-07-08	801665-11773	0.165 ppb
2014-07-08	801412-11773	0.134 ppb
2014-07-08	801396-11786	0.0841 ppb
2014-07-08	801667-11773	0.106 ppb
2014-07-08	801685-11773	0.154 ppb
2014-07-08	801394-11786	0.156 ppb
2014-07-08	801410-11773	0.0928 ppb
2014-07-08	801390-11786	0.137 ppb
2014-07-08	801683-11773	0.0963 ppb
2014-07-08	801669-11773	0.0641 ppb
2014-07-08	801414-11773	0.154 ppb
2014-07-08	801398-11786	0.0693 ppb
2014-07-08	801402-11786	0.0967 ppb
2014-07-08	801677-11773	0.129 ppb
2014-07-08	801681-11773	0.157 ppb
2014-07-08	801392-11786	0.0698 ppb
2014-07-08	801404-11786	0.195 ppb
2014-07-08	801406-11786	0.0489 ppb
2014-07-08	801673-11773	0.0637 ppb
2015-01-08	838208-13206	0.170 ppb
2015-01-08	838214-13206	0.0913 ppb
2015-01-08	838216-13206	0.0858 ppb
2015-01-08	838256-13206	0.0632 ppb
2015-01-08	838237-13206	0.385 ppb
2015-01-08	838254-13206	0.0465 ppb
2015-01-08	838246-13206	0.110 ppb
2015-01-08	838252-13206	0.146 ppb
2015-01-08	838248-13206	0.0913 ppb
2015-01-08	838220-13206	0.128 ppb
2015-01-08	838242-13206	0.0747 ppb
2015-01-08	838210-13206	0.138 ppb
2015-01-08	838212-13206	0.156 ppb
2015-01-08	838244-13206	0.115 ppb
2015-01-08	838258-13206	0.0826 ppb
2015-01-08	838250-13206	0.139 ppb
2015-01-08	838218-13206	0.155 ppb
2015-01-08	838264-13206	0.137 ppb
2015-01-08	838233-13206	0.166 ppb
2015-01-08	838225-13206	0.114 ppb
2015-01-08	838227-13206	0.0850 ppb
2015-01-08	838235-13206	0.171 ppb
2015-07-13	870174-14539	0.172 ppb
2015-07-13	870168-14539	0.137 ppb
2015-07-13	870180-14539	0.0946 ppb
2015-07-13	870172-14539	0.0975 ppb
2015-07-13	870178-14539	0.159 ppb
2015-07-13	870176-14539	0.135 ppb
2015-07-13	870170-14539	0.111 ppb
2015-09-14	882884-14953	0.117 ppb
2015-12-09	897655-15547	0.129 ppb
2015-12-09	897657-15547	0.138 ppb
2018-01-29	18A0571-02_01	143.0 ppb
2018-01-29	18A0571-01_01	110.0 ppb
2018-05-30	18E1190-01_01	118.0 ppb
2018-10-31	18K0014-01_01	93.7 ppb
2018-12-05	18L0178-02_01	48.5 ppb
2018-12-05	18L0178-01_01	47.5 ppb