Strontium
City of St. Helens
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
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2015 | 0.0608 ppb | 8 | 8 | 0.0558 ppb - 0.0785 ppb |
| 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 |
|---|---|---|
| 2015-02-24 | 2057110004 | 0.0558 ppb |
| 2015-02-24 | 2057110001 | 0.0605 ppb |
| 2015-05-12 | 2071185004 | 0.0564 ppb |
| 2015-05-12 | 2071185001 | 0.0578 ppb |
| 2015-08-11 | 2089036004 | 0.0569 ppb |
| 2015-08-11 | 2089036001 | 0.0601 ppb |
| 2015-11-10 | 2107617001 | 0.0785 ppb |
| 2015-11-10 | 2107617004 | 0.0604 ppb |