Strontium
California Water Service - Stockton
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.
39
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 | 0.240 ppb | 35 | 35 | 0.0470 ppb - 0.680 ppb |
| 2015 | 0.325 ppb | 4 | 4 | 0.160 ppb - 0.500 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 |
|---|---|---|
| 2014-01-09 | 201401100106AM | 0.0540 ppb |
| 2014-01-09 | 201401100115AM | 0.290 ppb |
| 2014-01-09 | 201401100156AM | 0.310 ppb |
| 2014-01-09 | 201401100145AM | 0.0540 ppb |
| 2014-01-14 | 201401150321AM | 0.380 ppb |
| 2014-01-14 | 201401150485AM | 0.0690 ppb |
| 2014-01-14 | 201401150648AM | 0.280 ppb |
| 2014-01-14 | 201401150369AM | 0.240 ppb |
| 2014-01-14 | 201401150353AM | 0.0560 ppb |
| 2014-01-14 | 201401150331AM | 0.0580 ppb |
| 2014-01-16 | 201401170451AM | 0.350 ppb |
| 2014-01-16 | 201401170464AM | 0.500 ppb |
| 2014-01-16 | 201401170406AM | 0.560 ppb |
| 2014-01-22 | 201401230166AM | 0.320 ppb |
| 2014-04-21 | 201404220216AM | 0.290 ppb |
| 2014-04-21 | 201404220224AM | 0.0740 ppb |
| 2014-04-21 | 201404220289AM | 0.0540 ppb |
| 2014-04-21 | 201404220358AM | 0.0530 ppb |
| 2014-07-07 | 201407090855AM | 0.260 ppb |
| 2014-07-08 | 201407090752AM | 0.320 ppb |
| 2014-07-08 | 201407090755AM | 0.120 ppb |
| 2014-07-08 | 201407090769AM | 0.0650 ppb |
| 2014-07-08 | 201407090776AM | 0.0540 ppb |
| 2014-07-08 | 201407090708AM | 0.240 ppb |
| 2014-07-08 | 201407090789AM | 0.340 ppb |
| 2014-07-14 | 201407150352AM | 0.510 ppb |
| 2014-07-15 | 201407160593AM | 0.470 ppb |
| 2014-07-15 | 201407160565AM | 0.680 ppb |
| 2014-07-15 | 201407160582AM | 0.340 ppb |
| 2014-07-23 | 201407240447AM | 0.0470 ppb |
| 2014-08-27 | 201408280741AM | 0.680 ppb |
| 2014-10-08 | 201410090297AM | 0.0610 ppb |
| 2014-10-08 | 201410090337AM | 0.0580 ppb |
| 2014-10-08 | 201410090372AM | 0.0640 ppb |
| 2014-11-12 | 201411130683AM | 0.0940 ppb |
| 2015-01-07 | 201501080582AM | 0.160 ppb |
| 2015-01-08 | 201501090540AM | 0.190 ppb |
| 2015-06-03 | 201506040496AM | 0.500 ppb |
| 2015-09-16 | 201509170573AM | 0.450 ppb |