Strontium

Colorado Springs Utilities

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	0.0787 ppb	18	18	0.0480 ppb - 0.0980 ppb
2014	0.0801 ppb	18	18	0.0460 ppb - 0.110 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	Result
2013-07-15	0.0980 ppb
2013-07-15	0.0910 ppb
2013-07-15	0.0910 ppb
2013-07-15	0.0540 ppb
2013-07-15	0.0840 ppb
2013-07-15	0.0760 ppb
2013-07-15	0.0940 ppb
2013-07-15	0.0860 ppb
2013-07-15	0.0950 ppb
2013-09-04	0.0480 ppb
2013-10-28	0.0650 ppb
2013-10-28	0.0570 ppb
2013-10-28	0.0910 ppb
2013-10-28	0.0840 ppb
2013-10-28	0.0920 ppb
2013-10-28	0.0650 ppb
2013-10-28	0.0570 ppb
2013-10-28	0.0880 ppb
2014-01-07	0.0950 ppb
2014-01-07	0.0930 ppb
2014-01-21	0.0600 ppb
2014-01-21	0.0460 ppb
2014-01-21	0.110 ppb
2014-01-21	0.1000 ppb
2014-01-21	0.0600 ppb
2014-01-21	0.0960 ppb
2014-01-21	0.0460 ppb
2014-01-21	0.0980 ppb
2014-04-21	0.0720 ppb
2014-04-21	0.0680 ppb
2014-04-21	0.0740 ppb
2014-04-21	0.0940 ppb
2014-04-21	0.0510 ppb
2014-04-21	0.0960 ppb
2014-05-12	0.0890 ppb
2014-05-12	0.0930 ppb