ML071350109

Meeting Handout on Summary of HP Performance During RF16

ML071350109
Person / Time
Site:	Summer
Issue date:	05/02/2007
From:	SCANA Corp, South Carolina Electric & Gas Co
To:	Office of Nuclear Reactor Regulation
References
Download: ML071350109 (8)

Text

Summary of HP Performance during RF16

• Benchmark Dose Rate 9.1 mrem/hr

• Outage Exposure Goal 65 Rem

• RF16 Actual 64.134 Rem (ED)

• TLD corrected to 56.129 Rem

• 11.880 Rem Emergent Work

• 10.681 Rem resulted from CRDM repairs

• Best Dose performance ever at VCS!

Significant Emergent Dose Activities for RF16 CRDM Leak Repair and Cleanup Activities 6.112 Rem RV Head Permanent Shield/Shroud/Insulation Removal/Replacement 4.551 Rem

Significant Dose Activities for RF16 Reactor Building Sump Mod Challenges (4.369 Rem)

• Space

• Hexavalent Chrome (CrVI)

• Welding Resource

• Dose Rate vs. man-hrs

Significant Dose Activities for RF16 Volumetric Head Inspection Challenges (3.830 Rem)

• LHRA Controls

• Contamination Controls

• Location in RB

• High dose rates (1.5 to 7.0 R/hr)

Damaged Fuel Assembly (RP Response)

• Underwater Surveys

- Captured high activity metal fragment (>1000 R/hr) prior to drain down

• Close scrutiny on no mode valve work (1st off RCS valves)

• Increased Hot Particle sweeps

• Discontinued use of RM-24 Radon instrument (alpha discrimination)

ALARA RV Head HydraNut Remote Camera Monitoring and Closure Mod Telemetric Dosimetry Robotic bare metal video inspection

Radwaste

• Transportation WHITE Finding in 1st qtr 2006

• 61 Shipments were made during RF16 with no issues

• 95-001 Follow up inspection closed out finding post outage

Closing Remarks Jeff Archie Vice President, Nuclear Operations