Strontium

City of Kerrville

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	1.91 ppb	14	14	0.268 ppb - 7.12 ppb
2014	2.44 ppb	14	14	0.272 ppb - 6.84 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
2013-08-26	35106170009AM	7.12 ppb
2013-08-26	35106170001AM	0.701 ppb
2013-08-26	35106170003AM	0.562 ppb
2013-08-26	35106170011AM	0.614 ppb
2013-08-26	35106170005AM	3.11 ppb
2013-08-26	35106170007AM	1.25 ppb
2013-08-27	35106349003AM	4.69 ppb
2013-08-27	35106349001AM	3.66 ppb
2013-08-27	35106349005AM	1.62 ppb
2013-08-27	35106349007AM	1.68 ppb
2013-08-27	35106349011AM	0.662 ppb
2013-08-27	35106349009AM	0.414 ppb
2013-11-13	35115870001AM	0.268 ppb
2013-11-13	35115870003AM	0.416 ppb
2014-02-18	35127285005AM	2.94 ppb
2014-02-18	35127285003AM	1.25 ppb
2014-02-18	35127285009AM	6.84 ppb
2014-02-18	35127285001AM	0.274 ppb
2014-02-18	35127285007AM	0.689 ppb
2014-02-18	35127285011AM	1.01 ppb
2014-02-19	35127269011AM	1.04 ppb
2014-02-19	35127269001AM	4.97 ppb
2014-02-19	35127269009AM	0.272 ppb
2014-02-19	35127269005AM	4.71 ppb
2014-02-19	35127269003AM	4.61 ppb
2014-02-19	35127269007AM	4.75 ppb
2014-05-20	35139241003AM	0.356 ppb
2014-05-20	35139241001AM	0.491 ppb