Strontium
California American Water Company - Parkway
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.
44
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 | 0.263 ppb | 16 | 16 | 0.102 ppb - 0.530 ppb |
| 2015 | 0.219 ppb | 28 | 28 | 0.0702 ppb - 0.648 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 |
|---|---|---|
| 2014-12-02 | 27680001 | 0.217 ppb |
| 2014-12-02 | 27681501 | 0.168 ppb |
| 2014-12-02 | 27679501 | 0.115 ppb |
| 2014-12-02 | 3159701 | 0.170 ppb |
| 2014-12-02 | 27679801 | 0.173 ppb |
| 2014-12-02 | 27680201 | 0.116 ppb |
| 2014-12-03 | 3159718 | 0.510 ppb |
| 2014-12-03 | 3159722 | 0.530 ppb |
| 2014-12-03 | 3159707 | 0.220 ppb |
| 2014-12-04 | 3159874 | 0.170 ppb |
| 2014-12-04 | 3159682 | 0.270 ppb |
| 2014-12-04 | 3159876 | 0.250 ppb |
| 2014-12-16 | 27680601 | 0.462 ppb |
| 2014-12-16 | 27678801 | 0.518 ppb |
| 2014-12-17 | 27784901 | 0.211 ppb |
| 2014-12-17 | 27681701 | 0.102 ppb |
| 2015-01-27 | 28161401 | 0.132 ppb |
| 2015-01-27 | 28161301 | 0.199 ppb |
| 2015-01-28 | 28292901 | 0.177 ppb |
| 2015-01-28 | 28292701 | 0.288 ppb |
| 2015-03-19 | 28476701 | 0.0867 ppb |
| 2015-03-19 | 28476801 | 0.142 ppb |
| 2015-06-09 | 29307901 | 0.191 ppb |
| 2015-06-09 | 29306301 | 0.178 ppb |
| 2015-06-09 | 29306501 | 0.128 ppb |
| 2015-06-09 | 29308101 | 0.120 ppb |
| 2015-06-11 | 29308301 | 0.156 ppb |
| 2015-06-11 | 29305901 | 0.125 ppb |
| 2015-06-17 | 29308701 | 0.242 ppb |
| 2015-06-17 | 29308901 | 0.0732 ppb |
| 2015-06-17 | 29306001 | 0.245 ppb |
| 2015-06-17 | 29305801 | 0.0787 ppb |
| 2015-06-18 | 29306101 | 0.464 ppb |
| 2015-06-18 | 29307501 | 0.648 ppb |
| 2015-06-18 | 29306201 | 0.307 ppb |
| 2015-06-18 | 29308501 | 0.340 ppb |
| 2015-06-18 | 29306401 | 0.138 ppb |
| 2015-06-18 | 29306901 | 0.204 ppb |
| 2015-06-23 | 29306601 | 0.200 ppb |
| 2015-06-23 | 29307101 | 0.474 ppb |
| 2015-06-23 | 29307301 | 0.184 ppb |
| 2015-07-28 | 29949801 | 0.381 ppb |
| 2015-09-17 | 30238501 | 0.0702 ppb |
| 2015-12-09 | 30668001 | 0.169 ppb |