Strontium

City of Katy

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	0.499 ppb	12	12	0.251 ppb - 0.656 ppb
2014	0.505 ppb	12	12	0.417 ppb - 0.635 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
2013-09-23	Q1307878015	0.568 ppb
2013-09-23	Q1307878001	0.498 ppb
2013-09-23	Q1307878003	0.476 ppb
2013-09-23	Q1307878013	0.487 ppb
2013-09-23	Q1307878019	0.490 ppb
2013-09-23	Q1307878023	0.495 ppb
2013-09-23	Q1307878017	0.251 ppb
2013-09-23	Q1307878021	0.638 ppb
2013-09-23	Q1307878009	0.656 ppb
2013-09-23	Q1307878011	0.495 ppb
2013-09-23	Q1307878005	0.505 ppb
2013-09-23	Q1307878007	0.427 ppb
2014-03-24	Q1409292009	0.626 ppb
2014-03-24	Q1409292011	0.474 ppb
2014-03-24	Q1409292007	0.445 ppb
2014-03-24	Q1409292013	0.531 ppb
2014-03-24	Q1409292017	0.417 ppb
2014-03-24	Q1409292015	0.600 ppb
2014-03-24	Q1409292019	0.487 ppb
2014-03-24	Q1409292021	0.635 ppb
2014-03-24	Q1409292023	0.471 ppb
2014-03-24	Q1409292003	0.474 ppb
2014-03-24	Q1409292005	0.418 ppb
2014-03-24	Q1409292001	0.476 ppb