ENS 40944
ENS Event | |
|---|---|
07:00 Jul 27, 2004 | |
| Title | Agreement State Report - Damaged Troxler Moisture Density Gauge |
| Event Description | {{#Wiki_filter:Taken in part from email sent from Washington Department of Health
The licensee reported that a Troxler moisture/density gauge, Model 3430, Serial Number 19736 was damaged while in use. The gauge was backed over by a water truck while the source rod was extended into the road surface. The gauge contained two sealed sources, (Cs-137, 0.296 GBq [8 milliCuries] and Am-241:Be 1.48 GBq [40 milliCuries]). The licensee stated the gauge had been placed on the surface with the source rod in a test hole. The licensee was looking for a new test location when the truck damaged the gauge. The licensee attempted to retract the Cs-137 source into its shielded position but could not. The operator placed the end of the probe back in the test hole and waited for help. A manufacturer's representative arrived at about 10:30 a.m. to assist the licensee. He surveyed the area and found that the highest reading was 50 mR/hr directly beside the gauge with the rod in the ground. A second attempt was made to retract the source rod into the shielded position. This resulted in moving all but the last � inch inside the shield. At this point the source rod with shield was placed in a five gallon bucket and filled with dirt and rock while the transport box was made ready. Both the Cs-137 and Am-241:Be sources appeared to be intact and undamaged. The representative attempted again to move the Cs-137 source into the shielded position. This attempt was successful. The Cs-137 source rod/shield assembly and Am-241:Be source were placed into the transport box and more dirt and rock were added. The box was then locked and chained inside the licensee's truck. Dose-rate measurements were taken and noted to be 10 mR/hr at 6 inches from the box. The driver's side of the cab measured about 2 mR/hr. The licensee was instructed to park the vehicle, not to leave it unattended and not to drive it until additional shielding could be located. The representative took possession and transported the gauge to a storage area where it was secured. A leak test was performed and found to be negative. The representative will ship the gauge for disposal. Washington State event report #WA 04-044. }}[[Event description::Description::{{#Regex_clear:Taken in part from email sent from Washington Department of Health The licensee reported that a Troxler moisture/density gauge, Model 3430, Serial Number 19736 was damaged while in use. The gauge was backed over by a water truck while the source rod was extended into the road surface. The gauge contained two sealed sources, (Cs-137, 0.296 GBq [8 milliCuries] and Am-241:Be 1.48 GBq [40 milliCuries]). The licensee stated the gauge had been placed on the surface with the source rod in a test hole. The licensee was looking for a new test location when the truck damaged the gauge. The licensee attempted to retract the Cs-137 source into its shielded position but could not. The operator placed the end of the probe back in the test hole and waited for help. A manufacturer's representative arrived at about 10:30 a.m. to assist the licensee. He surveyed the area and found that the highest reading was 50 mR/hr directly beside the gauge with the rod in the ground. A second attempt was made to retract the source rod into the shielded position. This resulted in moving all but the last � inch inside the shield. At this point the source rod with shield was placed in a five gallon bucket and filled with dirt and rock while the transport box was made ready. Both the Cs-137 and Am-241:Be sources appeared to be intact and undamaged. The representative attempted again to move the Cs-137 source into the shielded position. This attempt was successful. The Cs-137 source rod/shield assembly and Am-241:Be source were placed into the transport box and more dirt and rock were added. The box was then locked and chained inside the licensee's truck. Dose-rate measurements were taken and noted to be 10 mR/hr at 6 inches from the box. The driver's side of the cab measured about 2 mR/hr. The licensee was instructed to park the vehicle, not to leave it unattended and not to drive it until additional shielding could be located. The representative took possession and transported the gauge to a storage area where it was secured. A leak test was performed and found to be negative. The representative will ship the gauge for disposal. Washington State event report #WA 04-044. }}| ]] |
| Where | |
|---|---|
| Wyatt Engineering - Uskh Spokane, Washington (NRC Region 4) | |
| License number: | Wn-I0409-1 |
| Organization: | Wa Division Of Radiation Protection |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+395.22 h16.468 days <br />2.352 weeks <br />0.541 months <br />) | |
| Opened: | Arden Scroggs 18:13 Aug 12, 2004 |
| NRC Officer: | Jeff Rotton |
| Last Updated: | Aug 12, 2004 |
| 40944 - NRC Website | |
Wyatt Engineering - Uskh with Agreement State | |
WEEKMONTHYEARENS 409442004-07-27T07:00:00027 July 2004 07:00:00
[Table view]Agreement State Agreement State Report - Damaged Troxler Moisture Density Gauge 2004-07-27T07:00:00 | |