Strontium
City of Redmond Water System
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.
18
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 | 0.0255 ppb | 2 | 2 | 0.0250 ppb - 0.0260 ppb |
| 2015 | 0.0701 ppb | 16 | 16 | 0.0190 ppb - 0.130 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 |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2014-09-24 | A4H1630-01A | 0.0260 ppb |
| 2014-09-24 | A4H1630-06A | 0.0250 ppb |
| 2015-03-04 | A5B1435-01A | 0.0250 ppb |
| 2015-03-04 | A5B1435-06A | 0.0280 ppb |
| 2015-06-09 | A5C2165-09A | 0.0400 ppb |
| 2015-06-09 | A5C2165-11A | 0.0260 ppb |
| 2015-06-09 | A5C2165-07A | 0.0230 ppb |
| 2015-06-09 | A5C2165-01A | 0.0920 ppb |
| 2015-06-09 | A5C2165-05A | 0.0910 ppb |
| 2015-06-09 | A5C2165-03A | 0.1000 ppb |
| 2015-08-18 | A5G2132-01A | 0.110 ppb |
| 2015-09-09 | A5C2343-07A | 0.0960 ppb |
| 2015-09-09 | A5C2347-03A | 0.0190 ppb |
| 2015-09-09 | A5C2347-01A | 0.0220 ppb |
| 2015-09-09 | A5C2343-01A | 0.1000 ppb |
| 2015-09-09 | A5C2343-03A | 0.130 ppb |
| 2015-09-09 | A5C2343-05A | 0.1000 ppb |
| 2015-12-15 | A5K1615-01A | 0.120 ppb |