Strontium

CTWC - Shoreline Region-Guilford System

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	0.0613 ppb	24	24	0.0170 ppb - 0.130 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
2014-02-10	201402110107AM	0.0810 ppb
2014-02-10	201402110093AM	0.0740 ppb
2014-02-10	201402110109AM	0.0550 ppb
2014-02-11	201402120403AM	0.0780 ppb
2014-02-11	201402120573AM	0.0720 ppb
2014-02-11	201402120405AM	0.0860 ppb
2014-02-11	201402120674AM	0.0370 ppb
2014-02-11	201402120438AM	0.0240 ppb
2014-02-24	201402250182AM	0.0400 ppb
2014-04-08	201404090510AM	0.0170 ppb
2014-04-08	201404090427AM	0.0380 ppb
2014-05-21	201405220336AM	0.0380 ppb
2014-05-21	201405220417AM	0.0380 ppb
2014-08-04	201408050412AM	0.0900 ppb
2014-08-04	201408050418AM	0.0940 ppb
2014-08-04	201408050337AM	0.0480 ppb
2014-08-04	201408050384AM	0.0800 ppb
2014-08-25	201408270547AM	0.0570 ppb
2014-08-25	201408260368AM	0.0500 ppb
2014-08-26	201408270820AM	0.130 ppb
2014-08-26	201408270840AM	0.0630 ppb
2014-08-26	201408270836AM	0.0840 ppb
2014-11-18	201411190581AM	0.0470 ppb
2014-11-18	201411190387AM	0.0490 ppb