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EWG's Tap Water Database — 2021 UPDATE

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Strontium

California Water Service Company - East Los Angeles

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.810 ppb29290.440 ppb - 1.20 ppb
20150.707 ppb990.450 ppb - 1.20 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/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
2014-02-11201402110635AM0.670 ppb
2014-02-11201402110499AM0.440 ppb
2014-02-11201402110509AM0.700 ppb
2014-02-11201402110485AM0.570 ppb
2014-02-11201402110637AM0.600 ppb
2014-02-18201402180282AM0.980 ppb
2014-02-18201402180276AM0.930 ppb
2014-02-18201402180270AM0.940 ppb
2014-02-18201402190139AM0.790 ppb
2014-02-18201402180316AM0.830 ppb
2014-03-10201403100287AM0.800 ppb
2014-05-05201405050301AM0.900 ppb
2014-05-05201405050254AM0.900 ppb
2014-05-12201405120234AM0.660 ppb
2014-08-04201408040389AM0.770 ppb
2014-08-04201408040361AM0.830 ppb
2014-08-04201408040394AM1.000 ppb
2014-08-04201408040418AM0.750 ppb
2014-08-04201408040370AM0.850 ppb
2014-08-04201408040381AM0.840 ppb
2014-08-04201408040409AM0.720 ppb
2014-08-06201408060800AM0.980 ppb
2014-08-06201408060722AM0.500 ppb
2014-08-06201408060730AM1.10 ppb
2014-08-06201408060791AM0.540 ppb
2014-08-06201408060809AM1.20 ppb
2014-11-03201411030368AM1.000 ppb
2014-11-03201411030328AM1.000 ppb
2014-11-03201411030299AM0.700 ppb
2015-02-09201502090299AM0.640 ppb
2015-02-09201502090460AM0.520 ppb
2015-02-09201502090456AM1.10 ppb
2015-02-09201502090126AM0.830 ppb
2015-02-10201502100665AM0.530 ppb
2015-08-10201508100290AM0.500 ppb
2015-08-10201508100287AM1.20 ppb
2015-08-17201508170413AM0.590 ppb
2015-08-17201508170246AM0.450 ppb