The following water data comes from various water samples collected from around the State of Oregon. All of the samples are analyzed for cesium-137 and iodine-131 activity.
On this page:
Drinking Water
Drinking water samples are collected quarterly from Portland and monthly during the summer along the Oregon Coast. Samples are analyzed for cesium-137 and iodine-131 activity.
Data:
2013
Archive 2012
Archive 2011
| Sample Date |
Location |
Cesium - 137 |
Iodine - 131 |
| Activity pCi/L |
Activity pCi/L |
| 03/07/2013 |
Harris Beach |
<MDA* |
<MDA* |
| 02/26/2013 |
Nehalem Beach |
<MDA* |
<MDA* |
| 02/20/2013 |
Harris Beach |
<MDA* |
<MDA* |
| 01/15/2013 |
Heceta Beach |
<MDA* |
<MDA* |
| 01/14/2013 |
Harris Beach |
<MDA* |
<MDA* |
| 01/03/2013 |
Oswald State Park |
<MDA* |
<MDA* |
*Minimum Detectable Activity
Units: Picocurie (pCi): A unit of measurement that corresponds to the rate of decay of a sample of radioactive material.
1 pCi=0.037 Becquerel (Bq) = 2.22 disintegrations/minute.
Rain Water
Rain water samples are collected once a month in Portland, Oregon. Samples are analyzed for cesium-137 and iodine-131 activity.
Data:
2013
Archive 2012
Archive 2011
| Sample End Date |
Cesium - 137 |
Iodine - 131 |
| Activity pCi/L |
Activity pCi/L |
| 03/31/2013 |
**IQ |
**IQ |
| 02/28/2013 |
<MDA* |
<MDA* |
| 01/25/2013 |
<MDA* |
<MDA* |
*Minimum Detectable Activity
Units: Picocurie (pCi): A unit of measurement that corresponds to the rate of decay of a sample of radioactive material.
1 pCi=0.037 Becquerel (Bq) = 2.22 disintegrations/minute.
Sea Water
Sea water samples are collected once a month during the summer. Samples are analyzed for cesium-137 and iodine-131 activity.
Data:
2013
Archive 2012
Archive 2011
| Sample Date |
Location |
Cesium - 137 |
Iodine - 131 |
| Activity pCi/L |
Activity pCi/L |
| 03/07/2013 |
Harris Beach |
<MDA* |
<MDA* |
| 02/26/2013 |
Nehalem Beach |
<MDA* |
<MDA* |
| 02/20/2013 |
Harris Beach |
<MDA* |
<MDA* |
| 01/15/2013 |
Heceta Beach |
<MDA* |
<MDA* |
| 01/14/2013 |
Harris Beach |
<MDA* |
<MDA* |
| 01/03/2013 |
Oswald State Park |
<MDA* |
<MDA* |
*Minimum Detectable Activity
Units: Picocurie (pCi): A unit of measurement that corresponds to the rate of decay of a sample of radioactive material.
1 pCi=0.037 Becquerel (Bq) = 2.22 disintegrations/minute.