Strontium
City of Mountlake Terrace
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 | 0.0144 ppb | 4 | 4 | 0.0134 ppb - 0.0151 ppb |
| 2014 | 0.0130 ppb | 4 | 4 | 0.0120 ppb - 0.0150 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 |
|---|---|---|
| 2013-07-11 | WA97-SE1-13-12376-28110 | 0.0134 ppb |
| 2013-07-11 | WA97-SE1-13-12376-28111 | 0.0151 ppb |
| 2013-12-10 | WA97-SE2-13-23293-53388 | 0.0140 ppb |
| 2013-12-10 | WA97-SE2-13-23293-53387 | 0.0150 ppb |
| 2014-01-14 | WA97-SE3-14-00966-2543 | 0.0120 ppb |
| 2014-01-14 | WA97-SE3-14-00966-2542 | 0.0120 ppb |
| 2014-04-08 | WA97-SE4-14-06135-14923 | 0.0150 ppb |
| 2014-04-08 | WA97-SE4-14-06135-14922 | 0.0130 ppb |