Strontium

Suburban Water Systems - San Jose Hills

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	0.517 ppb	19	19	0.00150 ppb - 0.900 ppb
2014	0.523 ppb	19	19	0.00110 ppb - 0.990 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
2013-07-17	3G17071-03A	0.310 ppb
2013-07-17	3G17071-05A	0.810 ppb
2013-07-17	3G17071-13A	0.450 ppb
2013-07-17	3G17071-09A	0.250 ppb
2013-07-17	3G17071-15A	0.00150 ppb
2013-07-17	3G17071-11A	0.410 ppb
2013-07-17	3G17071-07A	0.250 ppb
2013-07-18	3G18052-01A	0.820 ppb
2013-07-18	3G18052-03A	0.320 ppb
2013-07-18	3G18052-07A	0.800 ppb
2013-07-18	3G18052-05A	0.830 ppb
2013-07-25	3G25022-01A	0.490 ppb
2013-10-22	3J22073-01A	0.270 ppb
2013-10-24	3J24046-05A	0.00220 ppb
2013-10-24	3J24046-09A	0.780 ppb
2013-10-24	3J24046-03A	0.870 ppb
2013-10-24	3J24046-01A	0.900 ppb
2013-10-24	3J24046-07A	0.810 ppb
2013-10-29	3J29008-01A	0.450 ppb
2014-01-17	4A17030-01A	0.990 ppb
2014-01-21	4A21011-07A	0.250 ppb
2014-01-21	4A21011-01A	0.270 ppb
2014-01-21	4A21011-03A	0.300 ppb
2014-01-21	4A21011-11A	0.250 ppb
2014-01-21	4A21011-05A	0.270 ppb
2014-01-21	4A21011-09A	0.920 ppb
2014-01-22	4A22058-03A	0.260 ppb
2014-01-22	4A22058-01A	0.400 ppb
2014-01-22	4A22058-07A	0.890 ppb
2014-01-22	4A22058-05A	0.00110 ppb
2014-01-22	4A22058-09A	0.890 ppb
2014-04-14	4D14035-01A	0.950 ppb
2014-04-16	4D16085-07A	0.450 ppb
2014-04-16	4D16085-05A	0.910 ppb
2014-04-16	4D16085-03A	0.0190 ppb
2014-04-16	4D16085-01A	0.920 ppb
2014-09-25	4I25064-01A	0.490 ppb
2014-12-04	4L04105-01A	0.510 ppb