ENS 45994
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ENS Event | |
|---|---|
18:12 Jun 9, 2010 | |
| Title | Press Release Concerning a Caustic Spill |
| Event Description | On June 9, 2010, at 10:32 PDT, a caustic spill occurred in the DCPP Unit 1 Turbine Building buttress area. On June 9, 2010, at 10:59 PDT the area was restricted for normal access with SCBAs required for entry into the area. On June 9, 2010, at 11:12 PDT an Unusual Event was declared for DCPP Unit 1. The DCPP Unit 1 reactor remains at full power. No safety related equipment has been impacted.
The Unusual Event was declared based on EP G-1 Attachment 2 - 'HU3.1 Report or detection of toxic, corrosive asphyxiant or flammable gases that have entered or could enter the Owner Controlled Area in amounts that can adversely affect normal plant operations.' The spill amount was reported as 5 gallons. The spill was due to a ruptured delivery hose. The hose was isolated initially at the delivery truck and the tank being filled. Hose continued to drain due to residual caustic in the hose. It was reported as 'confined' on June 9, 2010 at 11:02 PDT. The spill was reported as 'contained' on June 9, 2010 at 11:44 PDT. Access to the immediate area of the spill is still restricted. The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
| Diablo Canyon California (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-1.27 h-0.0529 days <br />-0.00756 weeks <br />-0.00174 months <br />) | |
| Opened: | Brain Sizemore 16:56 Jun 9, 2010 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Jun 9, 2010 |
| 45994 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
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