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EWG's Tap Water Database — 2021 UPDATE

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Strontium

Rincon Del Diablo MWD(ID-1)

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.788 ppb880.500 ppb - 0.930 ppb
2014N/A00N/A
2015N/A00N/A
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
2013-03-203C21018-01A0.560 ppb
2013-03-203C21018-03A0.500 ppb
2013-06-18B3F1852-030.930 ppb
2013-06-25B3F2569-010.870 ppb
2013-09-10B3I0877-010.890 ppb
2013-09-10B3I0877-030.880 ppb
2013-12-10B3L1000-030.820 ppb
2013-12-10B3L1000-010.850 ppb