Strontium
Orange County Utilities Department (OCUD) - West
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.
16
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 | 0.0854 ppb | 6 | 6 | 0.0784 ppb - 0.103 ppb |
| 2014 | 0.195 ppb | 8 | 8 | 0.0793 ppb - 0.576 ppb |
| 2015 | 0.489 ppb | 2 | 2 | 0.386 ppb - 0.592 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 |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 | Result |
|---|---|
| 2013-12-03 | 0.103 ppb |
| 2013-12-03 | 0.0810 ppb |
| 2013-12-03 | 0.0803 ppb |
| 2013-12-03 | 0.0808 ppb |
| 2013-12-03 | 0.0889 ppb |
| 2013-12-03 | 0.0784 ppb |
| 2014-06-18 | 0.0793 ppb |
| 2014-06-18 | 0.0915 ppb |
| 2014-06-19 | 0.106 ppb |
| 2014-06-19 | 0.0923 ppb |
| 2014-06-19 | 0.0816 ppb |
| 2014-06-19 | 0.0837 ppb |
| 2014-10-17 | 0.452 ppb |
| 2014-10-17 | 0.576 ppb |
| 2015-02-26 | 0.386 ppb |
| 2015-02-26 | 0.592 ppb |