Strontium
City of Ontario
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 | 0.300 ppb | 2 | 2 | 0.300 ppb |
| 2015 | 0.287 ppb | 6 | 6 | 0.250 ppb - 0.340 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 |
|---|---|---|
| 2014-10-27 | 201410280393AM | 0.300 ppb |
| 2014-10-27 | 201410280493AM | 0.300 ppb |
| 2015-01-22 | 201501230343AM | 0.340 ppb |
| 2015-01-22 | 201501230259AM | 0.290 ppb |
| 2015-04-16 | 201504170250AM | 0.250 ppb |
| 2015-04-30 | 201505010061AM | 0.280 ppb |
| 2015-08-12 | 201508140255AM | 0.280 ppb |
| 2015-08-13 | 201508140161AM | 0.280 ppb |