Know Your Environment. Protect Your Health.

Strontium

King County Water District #49

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
20140.0305 ppb880.0260 ppb - 0.0360 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
2014-02-18201402190342AM0.0290 ppb
2014-02-18201402190253AM0.0270 ppb
2014-05-14201405200210AM0.0280 ppb
2014-05-19201405200225AM0.0260 ppb
2014-08-05201408060346AM0.0300 ppb
2014-08-05201408060316AM0.0340 ppb
2014-11-13201411150201AM0.0340 ppb
2014-11-13201411150151AM0.0360 ppb