ENS 47078: Difference between revisions
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| event date = 07/20/2011 15:55 EDT | | event date = 07/20/2011 15:55 EDT | ||
| last update date = 07/20/2011 | | last update date = 07/20/2011 | ||
| title = Offsite Notification | | title = Offsite Notification to the North Carolina Wildlife Resources Commission | ||
| event text = Duke Energy Scientific Services group representative notified the NC Wildlife Resources Commission at 1555 hours that MNS was operating their LLI Pumps to maintain discharge temperatures within the NPDES permit average monthly temperature limit. | | event text = Duke Energy Scientific Services group representative notified the NC Wildlife Resources Commission at 1555 hours that MNS was operating their LLI Pumps to maintain discharge temperatures within the NPDES permit average monthly temperature limit. | ||
Based on the elevated lake temperatures, action to align circulating water to the LLI (cooler water) is necessary to prevent exceeding discharge temperature limits. Operation of the LLI pumps is sometimes needed during this time of year to comply with the water permit. Substantial effort is taken to avoid this alignment due to the potential to accelerate the natural phenomenon of oxygen depletion in the lower depths of Lake Norman that occurs as water temperature increases. The normal seasonal oxygen level changes can stress the fish population in that depth of the lake. | Based on the elevated lake temperatures, action to align circulating water to the LLI (cooler water) is necessary to prevent exceeding discharge temperature limits. Operation of the LLI pumps is sometimes needed during this time of year to comply with the water permit. Substantial effort is taken to avoid this alignment due to the potential to accelerate the natural phenomenon of oxygen depletion in the lower depths of Lake Norman that occurs as water temperature increases. The normal seasonal oxygen level changes can stress the fish population in that depth of the lake. | ||
Latest revision as of 22:06, 1 March 2018
| Where | |
|---|---|
Mcguire  North Carolina (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-2.42 h-0.101 days <br />-0.0144 weeks <br />-0.00331 months <br />) | |
| Opened: | Warren Moore 17:30 Jul 20, 2011 |
| NRC Officer: | Steve Sandin |
| Last Updated: | Jul 20, 2011 |
| 47078 - NRC Website
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