Strontium
Clearfield Municipal Authority
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.
16
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 | 0.0491 ppb | 4 | 4 | 0.0172 ppb - 0.126 ppb |
| 2014 | 0.0517 ppb | 12 | 12 | 0.0166 ppb - 0.118 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 |
|---|---|---|
| 2013-11-14 | 1059100005 | 0.0172 ppb |
| 2013-11-14 | 1059100008 | 0.126 ppb |
| 2013-11-14 | 1059100001 | 0.0174 ppb |
| 2013-11-14 | 1059100003 | 0.0357 ppb |
| 2014-02-12 | 1071760008 | 0.118 ppb |
| 2014-02-12 | 1071760001 | 0.0198 ppb |
| 2014-02-12 | 1071760003 | 0.116 ppb |
| 2014-02-12 | 1071760005 | 0.0190 ppb |
| 2014-05-12 | 2006426005 | 0.0167 ppb |
| 2014-05-12 | 2006426008 | 0.113 ppb |
| 2014-05-12 | 2006426003 | 0.0286 ppb |
| 2014-05-12 | 2006426001 | 0.0185 ppb |
| 2014-08-13 | 2023454008 | 0.104 ppb |
| 2014-08-13 | 2023454001 | 0.0167 ppb |
| 2014-08-13 | 2023454003 | 0.0331 ppb |
| 2014-08-13 | 2023454005 | 0.0166 ppb |