Strontium
King County Water District 111
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.
16
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.0764 ppb | 8 | 8 | 0.0500 ppb - 0.110 ppb |
| 2014 | 0.0736 ppb | 8 | 8 | 0.0460 ppb - 0.110 ppb |
| 2015 | N/A | 0 | 0 | N/A |
| 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 |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/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 |
|---|---|---|
| 2013-08-20 | 2881753 | 0.0880 ppb |
| 2013-08-20 | 2881468 | 0.0720 ppb |
| 2013-08-20 | 2881295 | 0.0790 ppb |
| 2013-08-20 | 2881761 | 0.0880 ppb |
| 2013-08-20 | 2881731 | 0.0500 ppb |
| 2013-08-20 | 2881287 | 0.0530 ppb |
| 2013-08-20 | 2881740 | 0.110 ppb |
| 2013-08-20 | 2881459 | 0.0710 ppb |
| 2014-02-25 | 2981161 | 0.0900 ppb |
| 2014-02-25 | 2981073 | 0.0720 ppb |
| 2014-02-25 | 2981047 | 0.0650 ppb |
| 2014-02-25 | 2981173 | 0.0910 ppb |
| 2014-02-25 | 2981056 | 0.0690 ppb |
| 2014-02-25 | 2981089 | 0.0460 ppb |
| 2014-02-25 | 2981136 | 0.110 ppb |
| 2014-04-29 | 3016623 | 0.0460 ppb |