Headquarters Daily Report MAY 15, 1996 *************************************************************************** REPORT NEGATIVE NO INPUT ATTACHED INPUT RECEIVED RECEIVED HEADQUARTERS REGION I û REGION II û REGION III û REGION IV û PRIORITY ATTENTION REQUIRED MORNING REPORT - REGION III MAY 15, 1996 Licensee/Facility: Notification: Commonwealth Edison Co. MR Number: 3-96-0053 Braidwood 1 2 Date: 05/15/96 Braceville,Illinois SIR PC Dockets: 50-456,50-457 PWR/W-4-LP,PWR/W-4-LP Subject: REFUELING OUTAGE Discussion: At 8:22 p.m. (CDT) on May 14, 1996, Unit 2 synchronized to the offsite distributed grid, ending a 59-day refueling outage. Major work during the outage included the removal of the reactor coolant system resistance temperature detector bypass manifolds, steam generator tube inspections, and overhaul of the two emergency diesel generators. The outage was extended from the originally scheduled 48 days because of emergent work. The 232-rem total dose for the outage was also higher than the initial estimate of 148 rem. This was attributed to higher than expected dose rates at shutdown and dose from emergent work. Unit 1 is currently at 100 percent power, but is scheduled to shutdown on May 25, 1996, for a mid-cycle inspection of steam generator tubes. Regional Action: Monitor Unit 2 power ascension and Unit 1 outage preparations. Contact: LEWIS F. MILLER, JR. (708)829-9629 _ REGION IV MORNING REPORT PAGE 2 MAY 15, 1996 Licensee/Facility: Notification: Arizona Public Service Co. MR Number: 4-96-0045 Palo Verde 1 2 3 Date: 05/15/96 Wintersburg,Arizona CALL FROM SENIOR RESIDENT INSPECTOR Dockets: 50-528,50-529,50-530 PWR/CE80,PWR/CE80,PWR/CE80 Subject: MISSED TECHNICAL SPECIFICATION SURVEILLANCE REQUIREMENT FOR STORAGE OF CHEMICALS IN CONTAINMENT Discussion: On May 14, 1996, the licensee, Arizona Public Services Company, entered Technical Specification (TS) 4.0.3, for all three units at Palo Verde Nuclear Generating Station, because of a failure to perform TS Surveillance Requirement 4.5.2.d.2. Surveillance Requirement 4.5.2.d.2 requires at least once every 18 months that the volume of solid granular trisodium phosphate dodecahydrate (TSP) contained in storage baskets be verified to be at least 464 cubic feet. The TSP provides a passive means of water chemistry (Ph) control for post-LOCA containment spray and core cooling. Technical Specification 4.0.3 allows the licensee a delay of up to 24 hours to perform missed surveillances. During TS improvement review, the licensee determined that the chemical actually used to support TS Surveillance Requirement 4.5.2.d.2 in all three units was anhydrous TSP. The licensee determined that the specified 464 cubic feet is adequate and appropriate for anhydrous TSP but that the appropriate volume of the dodecahydrate form of TSP would be greater. The licensee stated that the anhydrous form of TSP has greater buffering capability per unit mass than the dodecahydrate form of TSP. On May 15, 1996, the licensee submitted an emergency TS amendment request to ask for NRC approval to use anhydrous TSP to satisfy TS Requirement Surveillance 4.5.2.d.2. Regional Action: The region is checking the type of TSP used by other Combustion Engineering plants in the region. The region will follow the licensee's investigation of why anhydrous TSP was installed and not identified during the conduct of previously performed 18 month TS surveillances. Contact: D. Garcia (602)386-3638 _