Strontium
Concord 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.
16
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 | 0.121 ppb | 16 | 16 | 0.0456 ppb - 0.170 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 | Result |
|---|---|
| 2014-01-16 | 0.170 ppb |
| 2014-01-16 | 0.153 ppb |
| 2014-01-16 | 0.161 ppb |
| 2014-01-16 | 0.0837 ppb |
| 2014-01-23 | 0.118 ppb |
| 2014-01-23 | 0.0899 ppb |
| 2014-01-23 | 0.139 ppb |
| 2014-07-01 | 0.0456 ppb |
| 2014-07-07 | 0.106 ppb |
| 2014-07-08 | 0.110 ppb |
| 2014-07-09 | 0.152 ppb |
| 2014-07-09 | 0.158 ppb |
| 2014-07-09 | 0.144 ppb |
| 2014-07-09 | 0.0845 ppb |
| 2014-08-11 | 0.0948 ppb |
| 2014-08-11 | 0.130 ppb |