Strontium
Santa Margarita Water District
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.
12
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 | 0.741 ppb | 10 | 10 | 0.470 ppb - 1.000 ppb |
| 2014 | 1.05 ppb | 2 | 2 | 0.900 ppb - 1.20 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 |
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 |
|---|---|---|
| 2013-04-12 | B3D1504-01 | 0.470 ppb |
| 2013-04-12 | B3D1510-01 | 0.810 ppb |
| 2013-04-12 | B3D1496-01 | 0.540 ppb |
| 2013-04-12 | B3D1509-01 | 0.780 ppb |
| 2013-07-08 | B3G0626-01 | 0.980 ppb |
| 2013-07-08 | B3G0626-05 | 1.000 ppb |
| 2013-10-14 | B3J1355-04 | 0.920 ppb |
| 2013-10-14 | B3J1352-01 | 0.480 ppb |
| 2013-10-14 | B3J1355-01 | 0.900 ppb |
| 2013-11-15 | B3K1340-01 | 0.530 ppb |
| 2014-01-10 | B4A0951-01 | 0.900 ppb |
| 2014-01-10 | B4A0951-04 | 1.20 ppb |