Tritium
Dardanelle
Tritium is a radioactive element emitted from nuclear reactors and weapons production plants. Radiation from tritium and other radioactive substances increases the risk of cancer. Click here to read more on radiological contaminants.
9
Samples
0
Samples exceeding legal limit (MCL)
2
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 4 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | 130.75 pCi/L | 4 | 1 | ND - 523.00 pCi/L |
| 2019 | 522.00 pCi/L | 1 | 1 | 522.00 pCi/L |
pCi/L = picocuries per liter
State and national drinking water standards and health guidelines
EWG Health Guideline 400 pCi/L
The EWG Health Guideline of 400 pCi/L for tritium was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
pCi/L = picocuries per liter
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-02-04 | R150360010 | ND |
| 2015-04-01 | R150920004 | ND |
| 2015-07-21 | R152040002 | ND |
| 2015-10-20 | R152950005 | ND |
| 2018-03-19 | R180810013 | ND |
| 2018-05-08 | R181310001 | ND |
| 2018-07-09 | R181930017 | ND |
| 2018-10-08 | R182840013 | 523.00 pCi/L |
| 2019-01-08 | R190100018 | 522.00 pCi/L |