Strontium
City of Caldwell
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 |
---|---|---|---|---|
2014 | 0.163 ppb | 26 | 26 | 0.0984 ppb - 0.326 ppb |
2015 | 0.165 ppb | 26 | 26 | 0.0987 ppb - 0.329 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 |
---|---|---|
2014-11-24 | 141201001-012 | 0.107 ppb |
2014-11-24 | 141201001-008 | 0.0989 ppb |
2014-11-24 | 141201001-009 | 0.0990 ppb |
2014-11-24 | 141201004-007 | 0.317 ppb |
2014-11-24 | 141201004-008 | 0.307 ppb |
2014-11-24 | 141201001-010 | 0.107 ppb |
2014-11-24 | 141201001-003 | 0.0984 ppb |
2014-11-24 | 141201001-004 | 0.149 ppb |
2014-11-24 | 141201001-007 | 0.0984 ppb |
2014-11-24 | 141201004-010 | 0.313 ppb |
2014-11-24 | 141201001-005 | 0.150 ppb |
2014-11-24 | 141201001-006 | 0.153 ppb |
2014-11-24 | 141201001-001 | 0.101 ppb |
2014-11-24 | 141201001-011 | 0.107 ppb |
2014-11-24 | 141201001-002 | 0.0992 ppb |
2014-11-25 | 141201004-001 | 0.308 ppb |
2014-11-25 | 141201004-002 | 0.320 ppb |
2014-11-25 | 141201004-009 | 0.115 ppb |
2014-11-25 | 141201004-003 | 0.113 ppb |
2014-11-25 | 141201004-006 | 0.114 ppb |
2014-11-25 | 141201004-005 | 0.106 ppb |
2014-11-25 | 141201004-011 | 0.109 ppb |
2014-11-25 | 141201004-004 | 0.326 ppb |
2014-12-01 | 141202018-001 | 0.110 ppb |
2014-12-01 | 141202018-003 | 0.190 ppb |
2014-12-01 | 141202018-002 | 0.112 ppb |
2015-05-26 | 150528035-003 | 0.107 ppb |
2015-05-26 | 150528035-001 | 0.102 ppb |
2015-05-26 | 150528035-005 | 0.115 ppb |
2015-05-26 | 150528035-002 | 0.101 ppb |
2015-05-26 | 150528035-008 | 0.105 ppb |
2015-05-27 | 150529019-010 | 0.104 ppb |
2015-05-27 | 150529019-004 | 0.101 ppb |
2015-05-27 | 150529019-008 | 0.132 ppb |
2015-05-27 | 150529019-009 | 0.133 ppb |
2015-05-27 | 150529019-007 | 0.108 ppb |
2015-05-27 | 150529019-012 | 0.128 ppb |
2015-05-27 | 150529019-011 | 0.113 ppb |
2015-05-27 | 150529019-013 | 0.318 ppb |
2015-05-27 | 150528035-010 | 0.114 ppb |
2015-05-27 | 150529019-014 | 0.316 ppb |
2015-05-27 | 150529019-005 | 0.0987 ppb |
2015-05-27 | 150529019-015 | 0.314 ppb |
2015-05-27 | 150529019-016 | 0.105 ppb |
2015-05-27 | 150528035-009 | 0.329 ppb |
2015-05-27 | 150528035-004 | 0.113 ppb |
2015-05-27 | 150528035-007 | 0.320 ppb |
2015-05-27 | 150528035-006 | 0.321 ppb |
2015-05-28 | 150529019-002 | 0.133 ppb |
2015-05-28 | 150529019-001 | 0.135 ppb |
2015-07-30 | 150803001-002 | 0.146 ppb |
2015-07-30 | 150803001-001 | 0.182 ppb |