Strontium
City of Orange
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 | 0.374 ppb | 4 | 4 | 0.339 ppb - 0.441 ppb |
| 2015 | 0.380 ppb | 4 | 4 | 0.361 ppb - 0.397 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 | Lab ID | Result |
|---|---|---|
| 2014-11-24 | Q1457152003 | 0.348 ppb |
| 2014-11-24 | Q1457152005 | 0.369 ppb |
| 2014-11-24 | Q1457152007 | 0.339 ppb |
| 2014-11-24 | Q1457152001 | 0.441 ppb |
| 2015-05-12 | Q1517256001 | 0.361 ppb |
| 2015-05-12 | Q1517256003 | 0.395 ppb |
| 2015-05-12 | Q1517256007 | 0.366 ppb |
| 2015-05-12 | Q1517256005 | 0.397 ppb |