While the licensee was conducting maintenance activities in the E3
Emergency Diesel Generator (
EDG) room, a
CO2 fire extinguisher was observed to be leaking. Personnel were evacuated from the room due to a potential hazard from
CO2 buildup in the room. The licensee was initially unable to determine the concentration of
Oxygen or
CO2 in the
EDG room but made a decision to declare an Alert at 1536 EDT in accordance with
EAL H.A.7, "Life Threatening Atmosphere Potential.
The licensee does not consider the condition a threat to plant operation.
State and local authorities have been notified. The licensee has also notified the NRC Resident Inspector. The licensee anticipates that a press release will be issued.
- * * UPDATE FROM LICENSEE (JANKAUSKAS) TO HUFFMAN AT 1707 EDT ON 8/08/07 * * *
The licensee terminated the Alert at 1653 EDT base on Oxygen concentrations in the E3 EDG room above 20% and confirmation that Oxygen levels in the other 3 EDG bays (4 total) also confirmed above 20%.
State and local authorities have been notified. The licensee will notify the NRC Resident Inspector.
R1DO (Summers),
IRD (Cruz), and
NRR EO (Ruland) notified. The following offsite agencies were notified of the Alert termination:
DHS (Akers);
FEMA (Bisco);
DOE (Turner); and USDA (Leadbetter).
