Strontium
City of San Clemente
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.
20
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 | 0.845 ppb | 8 | 8 | 0.820 ppb - 0.900 ppb |
| 2014 | 1.03 ppb | 8 | 8 | 0.950 ppb - 1.20 ppb |
| 2015 | 0.593 ppb | 4 | 4 | 0.440 ppb - 0.780 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 |
|---|---|---|
| 2013-09-11 | 3I11048-05A | 0.840 ppb |
| 2013-09-11 | 3I11048-01A | 0.820 ppb |
| 2013-09-11 | 3I11048-07A | 0.840 ppb |
| 2013-09-11 | 3I11048-03A | 0.820 ppb |
| 2013-12-09 | 3L09134-05A | 0.840 ppb |
| 2013-12-09 | 3L09134-01A | 0.840 ppb |
| 2013-12-09 | 3L09134-03A | 0.900 ppb |
| 2013-12-09 | 3L09134-07A | 0.860 ppb |
| 2014-03-10 | 4C10057-05A | 0.960 ppb |
| 2014-03-10 | 4C10057-01A | 0.970 ppb |
| 2014-03-10 | 4C10057-07A | 0.950 ppb |
| 2014-03-10 | 4C10057-03A | 0.980 ppb |
| 2014-06-18 | 4F18051-07A | 1.20 ppb |
| 2014-06-18 | 4F18051-03A | 1.10 ppb |
| 2014-06-18 | 4F18051-01A | 1.000 ppb |
| 2014-06-18 | 4F18051-05A | 1.10 ppb |
| 2015-07-29 | 5G29085-03A | 0.680 ppb |
| 2015-07-29 | 5G29085-01A | 0.440 ppb |
| 2015-12-02 | 5L02070-03A | 0.780 ppb |
| 2015-12-02 | 5L02070-01A | 0.470 ppb |