Strontium
California Water Service (CWS) - Los Altos Suburban
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 | 0.351 ppb | 46 | 46 | 0.210 ppb - 1.10 ppb |
2014 | 0.320 ppb | 3 | 3 | 0.250 ppb - 0.380 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 |
---|---|---|
2013-06-04 | 201306060239AM | 0.380 ppb |
2013-06-04 | 201306060116AM | 0.420 ppb |
2013-06-04 | 201306060103AM | 0.260 ppb |
2013-06-05 | 201306060173AM | 0.420 ppb |
2013-06-05 | 201306060218AM | 0.260 ppb |
2013-06-05 | 201306060245AM | 0.350 ppb |
2013-06-10 | 201306110154AM | 0.210 ppb |
2013-06-10 | 201306110143AM | 0.270 ppb |
2013-06-10 | 201306110394AM | 0.250 ppb |
2013-06-10 | 201306110408AM | 0.360 ppb |
2013-06-10 | 201306110200AM | 0.300 ppb |
2013-06-10 | 201306110110AM | 0.360 ppb |
2013-06-10 | 201306110203AM | 0.300 ppb |
2013-06-10 | 201306110089AM | 0.240 ppb |
2013-06-12 | 201306130096AM | 0.370 ppb |
2013-06-13 | 201306140050AM | 0.280 ppb |
2013-06-13 | 201306140055AM | 0.280 ppb |
2013-06-13 | 201306140058AM | 0.230 ppb |
2013-06-18 | 201306190286AM | 1.10 ppb |
2013-06-18 | 201306190264AM | 0.640 ppb |
2013-06-18 | 201306190307AM | 1.000 ppb |
2013-09-11 | 201309120305AM | 0.230 ppb |
2013-09-11 | 201309120299AM | 0.240 ppb |
2013-12-03 | 201312040563AM | 0.420 ppb |
2013-12-03 | 201312040589AM | 0.220 ppb |
2013-12-03 | 201312040580AM | 0.270 ppb |
2013-12-03 | 201312040604AM | 0.340 ppb |
2013-12-03 | 201312040597AM | 0.400 ppb |
2013-12-04 | 201312050166AM | 0.350 ppb |
2013-12-05 | 201312060284AM | 0.210 ppb |
2013-12-09 | 201312100211AM | 0.340 ppb |
2013-12-09 | 201312100255AM | 0.240 ppb |
2013-12-09 | 201312100194AM | 0.270 ppb |
2013-12-09 | 201312100232AM | 0.360 ppb |
2013-12-09 | 201312100222AM | 0.240 ppb |
2013-12-10 | 201312110681AM | 0.230 ppb |
2013-12-10 | 201312110716AM | 0.380 ppb |
2013-12-11 | 201312120623AM | 0.240 ppb |
2013-12-16 | 201312170384AM | 0.370 ppb |
2013-12-16 | 201312170374AM | 0.510 ppb |
2013-12-16 | 201312170409AM | 0.310 ppb |
2013-12-16 | 201312170405AM | 0.260 ppb |
2013-12-16 | 201312170438AM | 0.300 ppb |
2013-12-17 | 201312180736AM | 0.360 ppb |
2013-12-17 | 201312180646AM | 0.380 ppb |
2013-12-18 | 201312200053AM | 0.380 ppb |
2014-03-05 | 201403060204AM | 0.250 ppb |
2014-03-05 | 201403060232AM | 0.330 ppb |
2014-06-04 | 201406050006AM | 0.380 ppb |