Strontium

City of Garden Grove

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	0.782 ppb	30	30	0.455 ppb - 0.987 ppb
2014	1.07 ppb	1	1	1.07 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
2013-03-04	3010062821	0.854 ppb
2013-03-05	3010062816	0.966 ppb
2013-03-07	3010062996	0.759 ppb
2013-05-13	3010062820	0.763 ppb
2013-05-13	3010062995	0.640 ppb
2013-05-13	3010062805	0.733 ppb
2013-05-13	3010062802	0.455 ppb
2013-05-14	3010062803	0.837 ppb
2013-05-14	3010062807	0.729 ppb
2013-05-14	3010062813	0.695 ppb
2013-05-15	3010062811	0.725 ppb
2013-05-15	3010062815	0.625 ppb
2013-05-15	3010062809	0.845 ppb
2013-06-10	3010062816-2	0.943 ppb
2013-06-10	3010062821-2	0.901 ppb
2013-06-11	3010062996-2	0.461 ppb
2013-09-03	3010062816-3	0.887 ppb
2013-09-03	3010062821-3	0.899 ppb
2013-09-04	3010062996-3	0.669 ppb
2013-11-13	3010062995-2	0.871 ppb
2013-11-13	3010062820-2	0.860 ppb
2013-11-13	3010062809-2	0.877 ppb
2013-11-13	3010062806-2	0.754 ppb
2013-11-13	3010062802-2	0.513 ppb
2013-11-13	3010062805-2	0.843 ppb
2013-11-13	3010062813-2	0.831 ppb
2013-11-13	3010062811-2	0.884 ppb
2013-11-13	3010062815-2	0.868 ppb
2013-12-09	3010062816-4	0.987 ppb
2013-12-10	3010062996-4	0.774 ppb
2014-02-05	3010062821-4A	1.07 ppb