Strontium
Golden State Water Company - Cowan Heights
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.
10
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 | 0.977 ppb | 10 | 10 | 0.480 ppb - 1.28 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 |
|---|---|---|
| 2014-02-19 | 104839P | 0.480 ppb |
| 2014-02-19 | 304755P | 0.950 ppb |
| 2014-02-19 | 104838P | 0.970 ppb |
| 2014-05-20 | 106914Q | 1.09 ppb |
| 2014-05-20 | 307001P | 1.22 ppb |
| 2014-08-19 | 108810P | 0.480 ppb |
| 2014-08-19 | 108811P | 1.000 ppb |
| 2014-08-19 | 308809P | 1.10 ppb |
| 2014-11-19 | 309729P | 1.20 ppb |
| 2014-11-19 | 109646F | 1.28 ppb |