Strontium
Nob Hill Water Association
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.
18
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 | 0.0579 ppb | 10 | 10 | 0.0319 ppb - 0.133 ppb |
| 2015 | 0.0835 ppb | 8 | 8 | 0.0450 ppb - 0.193 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 |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2014-04-21 | WA97-SE1-14-07099-17188 | 0.0374 ppb |
| 2014-04-21 | WA97-SE1-14-07099-17191 | 0.0547 ppb |
| 2014-04-21 | WA97-SE1-14-07099-17193 | 0.0595 ppb |
| 2014-04-21 | WA97-SE1-14-07099-17192 | 0.0341 ppb |
| 2014-04-21 | WA97-SE1-14-07099-17190 | 0.0559 ppb |
| 2014-04-21 | WA97-SE1-14-07099-17189 | 0.0319 ppb |
| 2014-09-09 | WA97-SE1-14-17950-41047 | 0.0400 ppb |
| 2014-09-09 | WA97-SE1-14-17950-41048 | 0.0670 ppb |
| 2014-09-09 | WA97-SE1-14-17950-41046 | 0.0650 ppb |
| 2014-09-09 | WA97-SE1-14-17950-41045 | 0.133 ppb |
| 2015-05-14 | WA97-SE2-15-09609-21837 | 0.0520 ppb |
| 2015-05-14 | WA97-SE2-15-09609-21838 | 0.0450 ppb |
| 2015-05-14 | WA97-SE2-15-09609-21839 | 0.0580 ppb |
| 2015-05-14 | WA97-SE1-15-09609-21836 | 0.158 ppb |
| 2015-10-06 | WA97-SE2-15-21669-48261 | 0.0540 ppb |
| 2015-10-06 | WA97-SE2-15-21669-48259 | 0.193 ppb |
| 2015-10-06 | WA97-SE2-15-21669-48262 | 0.0500 ppb |
| 2015-10-06 | WA97-SE2-15-21669-48260 | 0.0580 ppb |