Strontium

California American Water Company - Antelope

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	0.214 ppb	56	56	0.104 ppb - 0.372 ppb
2014	N/A	0	0	N/A
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
2013-02-05	20899601	0.200 ppb
2013-02-05	20900601	0.208 ppb
2013-02-06	20901101	0.267 ppb
2013-02-06	20898701	0.171 ppb
2013-02-06	20899201	0.198 ppb
2013-02-06	20900301	0.230 ppb
2013-02-06	20900401	0.194 ppb
2013-02-06	20899401	0.196 ppb
2013-02-11	20900701	0.198 ppb
2013-02-11	20898901	0.229 ppb
2013-03-05	20899901	0.224 ppb
2013-03-05	20899001	0.222 ppb
2013-03-05	20900001	0.256 ppb
2013-03-11	20899501	0.202 ppb
2013-03-11	20900101	0.180 ppb
2013-03-11	20898801	0.219 ppb
2013-03-11	20900901	0.147 ppb
2013-03-12	20900201	0.328 ppb
2013-03-12	20899801	0.215 ppb
2013-03-12	20901001	0.208 ppb
2013-03-12	20899101	0.233 ppb
2013-03-28	21642001	0.249 ppb
2013-06-27	22953601	0.187 ppb
2013-06-27	20900501	0.115 ppb
2013-06-27	22953701	0.287 ppb
2013-06-27	20900801	0.200 ppb
2013-06-27	22953901	0.186 ppb
2013-06-27	22953801	0.180 ppb
2013-08-07	23014401	0.201 ppb
2013-08-07	23012401	0.206 ppb
2013-08-07	23012601	0.208 ppb
2013-08-07	23013901	0.261 ppb
2013-08-08	23014001	0.212 ppb
2013-08-08	23013801	0.187 ppb
2013-08-08	23014301	0.216 ppb
2013-08-08	23013101	0.213 ppb
2013-08-08	23012901	0.213 ppb
2013-08-12	23013601	0.204 ppb
2013-08-12	23012501	0.266 ppb
2013-08-12	23014801	0.358 ppb
2013-08-12	23012701	0.372 ppb
2013-08-12	23013001	0.195 ppb
2013-08-13	23014101	0.216 ppb
2013-08-13	23014701	0.227 ppb
2013-08-13	23013301	0.239 ppb
2013-08-15	23013701	0.242 ppb
2013-09-26	23742901	0.251 ppb
2013-09-26	23742601	0.209 ppb
2013-10-01	23487301	0.148 ppb
2013-10-29	24086801	0.198 ppb
2013-12-12	24205401	0.184 ppb
2013-12-12	24205501	0.188 ppb
2013-12-12	24205601	0.137 ppb
2013-12-12	24576001	0.104 ppb
2013-12-12	24576101	0.195 ppb
2013-12-12	24576201	0.188 ppb