Strontium
City of Hillsboro
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 |
|---|---|---|---|---|
| 2013 | 0.0459 ppb | 4 | 4 | 0.0312 ppb - 0.0877 ppb |
| 2014 | 0.0340 ppb | 4 | 4 | 0.0320 ppb - 0.0390 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 |
|---|---|---|
| 2013-07-15 | WA97-SE1-13-12517-28354 | 0.0312 ppb |
| 2013-07-15 | WA97-SE1-13-12517-28355 | 0.0332 ppb |
| 2013-10-14 | WA97-SE2-13-19683-44637 | 0.0315 ppb |
| 2013-10-14 | WA97-SE2-19683-44636 | 0.0877 ppb |
| 2014-01-06 | WA97-SE3-14-00266-657 | 0.0320 ppb |
| 2014-01-06 | WA97-SE3-14-00266-656 | 0.0330 ppb |
| 2014-04-16 | WA97-SE4-14-06653-16043 | 0.0320 ppb |
| 2014-04-16 | WA97-SE4-14-06653-16042 | 0.0390 ppb |