Strontium
California American Water Company - Coronado
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | 0.656 ppb | 8 | 8 | 0.560 ppb - 0.840 ppb |
2014 | 0.632 ppb | 8 | 8 | 0.505 ppb - 0.749 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 | Lab ID | Result |
---|---|---|
2013-08-14 | 23026601 | 0.840 ppb |
2013-08-14 | 23026401 | 0.712 ppb |
2013-08-14 | 23026501 | 0.718 ppb |
2013-09-12 | 23743001 | 0.651 ppb |
2013-11-14 | 24009801 | 0.560 ppb |
2013-11-14 | 24009501 | 0.616 ppb |
2013-11-14 | 24009601 | 0.563 ppb |
2013-11-14 | 24009701 | 0.587 ppb |
2014-02-12 | 24741901 | 0.519 ppb |
2014-02-12 | 24741601 | 0.732 ppb |
2014-02-12 | 24741701 | 0.523 ppb |
2014-02-12 | 24741801 | 0.727 ppb |
2014-05-14 | 25563801 | 0.749 ppb |
2014-05-14 | 25563901 | 0.505 ppb |
2014-05-14 | 25564001 | 0.740 ppb |
2014-05-14 | 25564101 | 0.559 ppb |