Strontium
Skagit County Public Utility District 1 Judy Reservoir
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 | 0.0347 ppb | 4 | 4 | 0.0334 ppb - 0.0358 ppb |
| 2015 | 0.0318 ppb | 4 | 4 | 0.0290 ppb - 0.0330 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 |
|---|---|---|
| 2014-08-25 | 140827029-002 | 0.0358 ppb |
| 2014-08-25 | 140827029-001 | 0.0334 ppb |
| 2014-11-19 | 141201003-001 | 0.0349 ppb |
| 2014-11-19 | 141201003-002 | 0.0345 ppb |
| 2015-02-02 | WA-97-SE3-15-01953-4600 | 0.0290 ppb |
| 2015-02-03 | WA97-SE3-15-02062-4855 | 0.0320 ppb |
| 2015-05-04 | WA97-SE4-15-08346-19055 | 0.0330 ppb |
| 2015-05-04 | WA97-SE4-15-08346-19054 | 0.0330 ppb |