Strontium
City of Boerne
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 |
|---|---|---|---|---|
| 2013 | 3.31 ppb | 12 | 12 | 0.340 ppb - 10.8 ppb |
| 2014 | 2.11 ppb | 20 | 20 | 0.350 ppb - 10.2 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 |
|---|---|---|
| 2013-12-30 | Q1319561009 | 8.88 ppb |
| 2013-12-30 | Q1319561005 | 10.8 ppb |
| 2013-12-30 | Q1319561013 | 1.82 ppb |
| 2013-12-30 | Q1319561003 | 0.729 ppb |
| 2013-12-30 | Q1319561007 | 9.06 ppb |
| 2013-12-30 | Q1319561001 | 0.364 ppb |
| 2013-12-30 | Q1319561011 | 5.41 ppb |
| 2013-12-30 | Q1319561019 | 0.341 ppb |
| 2013-12-30 | Q1319561015 | 0.350 ppb |
| 2013-12-30 | Q1319561017 | 0.340 ppb |
| 2013-12-30 | Q1319561023 | 0.361 ppb |
| 2013-12-30 | Q1319561021 | 1.23 ppb |
| 2014-03-05 | Q1406828007 | 0.377 ppb |
| 2014-03-05 | Q1406828001 | 0.383 ppb |
| 2014-03-05 | Q1406828003 | 0.368 ppb |
| 2014-03-05 | Q1406828005 | 0.378 ppb |
| 2014-06-24 | Q1423083023 | 0.372 ppb |
| 2014-06-24 | Q1423083003 | 0.993 ppb |
| 2014-06-24 | Q1423083009 | 6.73 ppb |
| 2014-06-24 | Q1423083005 | 10.2 ppb |
| 2014-06-24 | Q1423083019 | 0.377 ppb |
| 2014-06-24 | Q1423083017 | 0.369 ppb |
| 2014-06-24 | Q1423083001 | 0.374 ppb |
| 2014-06-24 | Q1423083007 | 9.13 ppb |
| 2014-06-24 | Q1423083011 | 6.88 ppb |
| 2014-06-24 | Q1423083015 | 0.374 ppb |
| 2014-06-24 | Q1423083013 | 2.23 ppb |
| 2014-06-24 | Q1423083021 | 1.20 ppb |
| 2014-09-15 | Q1443985001 | 0.353 ppb |
| 2014-09-15 | Q1443985005 | 0.359 ppb |
| 2014-09-15 | Q1443985007 | 0.366 ppb |
| 2014-09-15 | Q1443985003 | 0.350 ppb |