Know Your Environment. Protect Your Health.

Strontium

King County Water District #20

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
20130.0285 ppb220.0280 ppb - 0.0290 ppb
20140.0278 ppb660.0230 ppb - 0.0330 ppb
20150.0291 ppb16160.0120 ppb - 0.0360 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2013-10-15201310160238AM0.0290 ppb
2013-10-15201310160206AM0.0280 ppb
2014-01-08201401090229AM0.0280 ppb
2014-01-08201401090265AM0.0300 ppb
2014-04-01201404020453AM0.0250 ppb
2014-04-01201404020549AM0.0230 ppb
2014-07-09201407100556AM0.0330 ppb
2014-07-09201407100442AM0.0280 ppb