Strontium
California Water Service (CWS) - Selma
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.
32
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 | 0.228 ppb | 30 | 30 | 0.0860 ppb - 0.590 ppb |
| 2015 | 0.200 ppb | 2 | 2 | 0.140 ppb - 0.260 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 |
|---|---|---|
| 2014-02-04 | A4A1432-11A | 0.270 ppb |
| 2014-02-04 | A4A1432-13A | 0.160 ppb |
| 2014-02-04 | A4A1432-09A | 0.290 ppb |
| 2014-02-05 | A4A1432-05A | 0.270 ppb |
| 2014-02-05 | A4A1432-01A | 0.290 ppb |
| 2014-02-05 | A4A1432-03A | 0.530 ppb |
| 2014-02-05 | A4A1432-07A | 0.110 ppb |
| 2014-02-11 | A4A1448-11A | 0.140 ppb |
| 2014-02-11 | A4A1442-07A | 0.160 ppb |
| 2014-02-11 | A4A1448-07A | 0.250 ppb |
| 2014-02-12 | A4A1448-05A | 0.0900 ppb |
| 2014-02-12 | A4A1442-09A | 0.210 ppb |
| 2014-02-12 | A4A1442-05A | 0.210 ppb |
| 2014-02-12 | A4A1448-03A | 0.350 ppb |
| 2014-02-12 | A4A1442-03A | 0.160 ppb |
| 2014-02-12 | A4A1442-01A | 0.1000 ppb |
| 2014-08-05 | A4G2162-01A | 0.280 ppb |
| 2014-08-05 | A4G2164-01A | 0.0860 ppb |
| 2014-08-05 | A4G2165-01A | 0.200 ppb |
| 2014-08-12 | A4G2807-01A | 0.160 ppb |
| 2014-08-12 | A4G2806-01A | 0.290 ppb |
| 2014-08-13 | A4G2805-01A | 0.140 ppb |
| 2014-08-13 | A4G2802-01A | 0.0950 ppb |
| 2014-08-13 | A4G2799-01A | 0.590 ppb |
| 2014-08-19 | A4G2159-01A | 0.190 ppb |
| 2014-08-19 | A4G2158-01A | 0.300 ppb |
| 2014-08-19 | A4G2161-01A | 0.0950 ppb |
| 2014-08-19 | A4H0224-01A | 0.300 ppb |
| 2014-08-19 | A4H0223-01A | 0.170 ppb |
| 2014-08-19 | A4H0220-01A | 0.350 ppb |
| 2015-04-28 | 201504140677AM | 0.260 ppb |
| 2015-06-04 | 201506050604AM | 0.140 ppb |