Strontium

Pomona Water Department

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	0.505 ppb	30	30	0.240 ppb - 0.750 ppb
2014	0.409 ppb	8	8	0.260 ppb - 0.630 ppb
2015	0.600 ppb	2	2	0.420 ppb - 0.780 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
2013-05-08	201305080602AM	0.240 ppb
2013-05-08	201305080600AM	0.580 ppb
2013-05-08	201305080592AM	0.680 ppb
2013-05-08	201305080606AM	0.430 ppb
2013-05-08	201305080604AM	0.690 ppb
2013-05-08	201305080594AM	0.460 ppb
2013-05-08	201305080596AM	0.420 ppb
2013-05-08	201305080598AM	0.560 ppb
2013-05-08	201305080586AM	0.590 ppb
2013-05-08	201305080588AM	0.410 ppb
2013-05-08	201305080590AM	0.240 ppb
2013-05-08	201305080584AM	0.430 ppb
2013-08-08	201308080470AM	0.470 ppb
2013-08-08	201308080476AM	0.750 ppb
2013-08-08	201308080480AM	0.280 ppb
2013-08-08	201308080472AM	0.460 ppb
2013-08-08	201308080478AM	0.750 ppb
2013-08-08	201308080474AM	0.280 ppb
2013-10-02	201310020266AM	0.720 ppb
2013-10-02	201310020264AM	0.710 ppb
2013-11-05	201311050736AM	0.450 ppb
2013-11-05	201311050732AM	0.420 ppb
2013-11-05	201311050734AM	0.270 ppb
2013-11-05	201311050730AM	0.700 ppb
2013-11-05	201311050728AM	0.500 ppb
2013-11-05	201311050746AM	0.530 ppb
2013-11-05	201311050744AM	0.280 ppb
2013-11-05	201311050742AM	0.600 ppb
2013-11-05	201311050738AM	0.630 ppb
2013-11-05	201311050740AM	0.630 ppb
2014-02-04	201402040632AM	0.540 ppb
2014-02-04	201402040638AM	0.630 ppb
2014-02-04	201402040640AM	0.260 ppb
2014-02-04	201402040630AM	0.460 ppb
2014-02-04	201402040636AM	0.500 ppb
2014-02-04	201402040634AM	0.270 ppb
2014-09-16	201409170324AM	0.300 ppb
2014-09-16	201409170326AM	0.310 ppb
2015-03-17	201503170763AM	0.420 ppb
2015-03-17	201503170765AM	0.780 ppb