Strontium
Iowa City 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.
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 | 0.0671 ppb | 2 | 2 | 0.0647 ppb - 0.0695 ppb |
| 2015 | 0.0711 ppb | 6 | 6 | 0.0625 ppb - 0.0784 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 |
|---|---|---|
| 2014-12-03 | 204736 | 0.0695 ppb |
| 2014-12-03 | 204738 | 0.0647 ppb |
| 2015-03-30 | 225343 | 0.0625 ppb |
| 2015-03-30 | 225344 | 0.0628 ppb |
| 2015-06-01 | 248914 | 0.0743 ppb |
| 2015-06-01 | 248912 | 0.0784 ppb |
| 2015-09-29 | 299297 | 0.0782 ppb |
| 2015-09-29 | 299298 | 0.0701 ppb |