Strontium
San Luis Obispo Water Department
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 |
|---|---|---|---|---|
| 2014 | 0.348 ppb | 6 | 6 | 0.260 ppb - 0.420 ppb |
| 2015 | 0.412 ppb | 6 | 6 | 0.290 ppb - 0.450 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 |
|---|---|---|
| 2014-07-15 | B4G1696-01 | 0.260 ppb |
| 2014-07-15 | B4G1701-01 | 0.300 ppb |
| 2014-07-15 | B4G1700-01 | 0.340 ppb |
| 2014-07-15 | B4G1688-01 | 0.360 ppb |
| 2014-10-07 | B4J0826-04 | 0.410 ppb |
| 2014-10-07 | B4J0826-01 | 0.420 ppb |
| 2015-01-14 | B5A1435-01 | 0.290 ppb |
| 2015-01-14 | B5A1447-01 | 0.430 ppb |
| 2015-01-14 | B5A1440-01 | 0.450 ppb |
| 2015-01-14 | B5A1430-01 | 0.430 ppb |
| 2015-04-06 | B5D0554-01 | 0.450 ppb |
| 2015-04-06 | B5D0552-01 | 0.420 ppb |