Strontium

Robeson County Water 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
2013	0.0353 ppb	14	14	0.00618 ppb - 0.199 ppb
2014	0.0248 ppb	14	14	0.0101 ppb - 0.0962 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
2013-12-03	761594-10435	0.00618 ppb
2013-12-03	761613-10435	0.0146 ppb
2013-12-03	761607-10435	0.0118 ppb
2013-12-03	761590-10435	0.0150 ppb
2013-12-03	761611-10435	0.0203 ppb
2013-12-03	761596-10435	0.0153 ppb
2013-12-03	761609-10435	0.0164 ppb
2013-12-03	761588-10435	0.0236 ppb
2013-12-09	762372-10446	0.0260 ppb
2013-12-09	762384-10462	0.0204 ppb
2013-12-09	762386-10462	0.0116 ppb
2013-12-09	762370-10446	0.0935 ppb
2013-12-09	762368-10446	0.0205 ppb
2013-12-09	762374-10446	0.199 ppb
2014-05-19	790776-11515	0.0225 ppb
2014-05-19	792048-11521	0.0348 ppb
2014-05-19	790778-11515	0.0144 ppb
2014-05-19	790780-11515	0.0112 ppb
2014-05-20	790772-11515	0.0144 ppb
2014-05-20	792080-11521	0.0101 ppb
2014-05-20	790799-11521	0.0962 ppb
2014-05-20	790774-11515	0.0140 ppb
2014-05-20	792078-11521	0.0178 ppb
2014-05-20	790797-11521	0.0119 ppb
2014-05-20	792084-11563	0.0167 ppb
2014-05-20	792050-11521	0.0556 ppb
2014-05-20	792086-11563	0.0122 ppb
2014-06-30	801019-11773	0.0161 ppb