Strontium
Clackamas River Water - Clackamas
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 |
|---|---|---|---|---|
| 2014 | 0.0303 ppb | 2 | 2 | 0.0260 ppb - 0.0345 ppb |
| 2015 | 0.0407 ppb | 6 | 6 | 0.0349 ppb - 0.0475 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 |
|---|---|---|
| 2014-11-24 | WA97-SE1-14-23136-52453 | 0.0260 ppb |
| 2014-11-24 | WA97-SE1-14-23136-52454 | 0.0345 ppb |
| 2015-02-23 | WA97-SE2-15-03429-7868 | 0.0349 ppb |
| 2015-02-23 | WA97-SE2-15-03429-7867 | 0.0378 ppb |
| 2015-05-19 | WA97-SE3-15-09949-22676 | 0.0390 ppb |
| 2015-05-19 | WA97-SE3-15-09949-22675 | 0.0390 ppb |
| 2015-08-24 | WA97-SE4-15-17918-39800 | 0.0457 ppb |
| 2015-08-24 | WA97-SE4-15-17918-39799 | 0.0475 ppb |