Strontium

City of Winston-Salem

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	0.0456 ppb	18	18	0.0320 ppb - 0.0770 ppb
2015	0.0403 ppb	6	6	0.0380 ppb - 0.0470 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
2014-04-23	4D24042-03A	0.0360 ppb
2014-04-23	4D24042-05A	0.0320 ppb
2014-04-23	4D24042-01A	0.0420 ppb
2014-04-23	4D24042-11A	0.0500 ppb
2014-04-23	4D24042-09A	0.0390 ppb
2014-04-23	4D24042-07A	0.0480 ppb
2014-07-23	4G24031-09A	0.0470 ppb
2014-07-23	4G24031-03A	0.0440 ppb
2014-07-23	4G24031-01A	0.0440 ppb
2014-07-23	4G24031-11A	0.0770 ppb
2014-07-23	4G24031-07A	0.0500 ppb
2014-07-23	4G24031-05A	0.0410 ppb
2014-10-14	4J15020-05A	0.0390 ppb
2014-10-14	4J15020-01A	0.0430 ppb
2014-10-14	4J15020-11A	0.0610 ppb
2014-10-14	4J15020-09A	0.0410 ppb
2014-10-14	4J15020-03A	0.0400 ppb
2014-10-14	4J15020-07A	0.0470 ppb
2015-01-06	5A07065-05A	0.0380 ppb
2015-01-06	5A07065-11A	0.0470 ppb
2015-01-06	5A07065-07A	0.0420 ppb
2015-01-06	5A07065-09A	0.0380 ppb
2015-01-06	5A07065-01A	0.0390 ppb
2015-01-06	5A07065-03A	0.0380 ppb