Strontium
Lake Oswego Municipal Water
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 | 0.0346 ppb | 6 | 6 | 0.0220 ppb - 0.0455 ppb |
| 2015 | 0.0295 ppb | 2 | 2 | 0.0290 ppb - 0.0300 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 |
|---|---|---|
| 2014-04-08 | WA97-SE1-14-06136-14924 | 0.0220 ppb |
| 2014-04-08 | WA97-SE1-14-06136-14925 | 0.0240 ppb |
| 2014-07-29 | WA97-SE2-14-14226-33118 | 0.0430 ppb |
| 2014-07-29 | WA97-SE2-14-14226-33117 | 0.0450 ppb |
| 2014-10-28 | WA98-SE3-14-21331-48255 | 0.0455 ppb |
| 2014-10-28 | WA98-SE3-14-21331-48254 | 0.0278 ppb |
| 2015-01-19 | WA97-SE4-15-01138-2701 | 0.0300 ppb |
| 2015-01-19 | WA97-SE4-15-01138-2700 | 0.0290 ppb |