Strontium
Keokuk Municipal Water Works
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.
8
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 | 0.0769 ppb | 2 | 2 | 0.0746 ppb - 0.0791 ppb |
| 2015 | 0.0885 ppb | 6 | 6 | 0.0611 ppb - 0.106 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 |
|---|---|---|
| 2014-11-17 | 202759 | 0.0791 ppb |
| 2014-11-17 | 202760 | 0.0746 ppb |
| 2015-02-03 | 212356 | 0.0611 ppb |
| 2015-02-03 | 212355 | 0.0652 ppb |
| 2015-05-26 | 247150 | 0.0944 ppb |
| 2015-05-26 | 247149 | 0.1000 ppb |
| 2015-08-04 | 275888 | 0.106 ppb |
| 2015-08-04 | 275887 | 0.104 ppb |