Strontium

City of Waco

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	N/A	0	0	N/A
2015	0.304 ppb	24	24	0.191 ppb - 0.548 ppb
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
2015-03-26	35181337007AM	0.266 ppb
2015-03-26	35181337013AM	0.260 ppb
2015-03-26	35181337015AM	0.267 ppb
2015-03-26	35181337011AM	0.538 ppb
2015-03-26	35181337009AM	0.282 ppb
2015-05-27	35190256007AM	0.474 ppb
2015-05-27	35190256009AM	0.518 ppb
2015-05-27	35190256001AM	0.238 ppb
2015-07-30	35199996007AM	0.221 ppb
2015-07-30	35199996005AM	0.218 ppb
2015-07-30	35199996003AM	0.220 ppb
2015-07-30	35199996001AM	0.223 ppb
2015-09-28	35209341015AM	0.226 ppb
2015-09-28	35209341007AM	0.234 ppb
2015-09-28	35209341003AM	0.548 ppb
2015-09-28	35209341011AM	0.532 ppb
2015-09-28	35209341009AM	0.234 ppb
2015-09-28	35209341005AM	0.230 ppb
2015-09-28	35209341001AM	0.514 ppb
2015-09-28	35209341013AM	0.228 ppb
2015-12-21	35222235005AM	0.206 ppb
2015-12-21	35222235007AM	0.208 ppb
2015-12-21	35222235003AM	0.209 ppb
2015-12-21	35222235001AM	0.191 ppb