DCL-10-083, Notification 50195082, Surface Contamination on the 115' Yard Outside an Sca

Notification 50195082, Surface Contamination on the 115' Yard Outside an Sca

ML11166A172
Person / Time
Site:	Diablo Canyon
Issue date:	01/22/2009
From:	Wright M B PG&E Corp
To:	Office of Nuclear Reactor Regulation
References
DCL-10-083, 50195082
Download: ML11166A172 (3)

Text

U Notification:

50195082 Type: DN Work Type: EVAL DCOM u -o

Description:

Rollover of A0315621 for 10CFR50.75g Order: Funct. Loc: DC-0-00 UO SYS 00 ADMINISTRATIVE-NO SYS ENG Reported By: MBW1 Martin B. Wright Rpt By Work Ctr: ORO-REMP Contact Info: MBW1 Martin B. Wright 545-3821 Created On: 22 Jan 09 16:39 Planner Group: NPR No planning requrd Main Wrk Ctr: ORO-REMP RAD Enviromental Monitoring Program PROBLEM DESCRIPTION 01/22/2009 16:39:21 Martin B. Wright (MBW1) Phone 545-3821 This notification was created to provide an ease for searching 10CFR50.75(g) events due to the transition from plant software PIMS to SAP.This information is rolled over from original AR # A0315621 as follows (please see PIMS for the original AE's associated with this AR): Summary: SURFACE CONTAMINATION ON THE 115' YARD OUTSIDE AN SCA SURFACE CONTAMINATION HAS BEEN FOUND OUTSIDE ON THE RXG4 09/02/93 GROUND OF THE 115 FOOT BACK YARD AREA. THE CONTAMINATION RXG4 09/02/93 IS LOCATED WEST OF VAULT 26 AND ALTHOUGH WITHIN THE RCA RXG4 09/02/93 WAS NOT INSIDE A POSTED SURFACE CONTAMINATION AREA. RXG4 09/02/93 THE AREA HAS BEEN EXTENSIVELY SURVEYED, ROPED OFF AND RXG4 09/02/93 POSTED, AND THE CONTAMINATION HAS BEEN "FIXED" IN PLACE RXG4 09/02/93 WITH ALARA PAINT. ANALYSIS SHOWS ONLY C-14 RXG4 09/02/93 IS PRESENT (I.E. NO GAMMA EMITTERS), WITH ONE SMALL RXG4 09/02/93 AREA INDICATING AS HIGH AS 2 MR/HR AS MEASURED WITH RXG4 09/02/93 AN RO-2 WITH AN OPEN WINDOW. RXG4 09/02/93 RADIATION PROTECTION REQUESTS THAT A QE BE GENERATED RXG4 09/02/93 Event Date 22 Jan 09 Notif Required By 20 Feb 09 Station Sig.: 5 Other Print Date: 07 Jun 10 12:33 PG&E Corporation DIABLO CANYON Page 1 of 3 Notification:

50195082 Type: DN Work Type: EVAL DCOM u o mDescription:

Rollover of A0315621 for IOCFR50.75g Order: FOR THIS EVENT. RXG4 09/02/93 QE Q0010939 HAS BEEN INITIATED TO DOCUMENT THE DEFICIENCY DASl 09/03/93 THE FOLLOWING HAS BEEN PROVIDED BY R. GAGNE: RXG4 09/03/93 ON 09/01/93 AT 1430 A WORKER ASSIGNED TO GC RXG4 09/03/93 PAINT WAS FOUND TO HAVE CONTAMINATION ON HIS RXG4 09/03/93 LEFT SHOE. HE HAD BEEN PREPPING THE FLOOR IN RXG4 09/03/93 VAULT 26. THE LEVELS OF CONTAMINATION WERE; RXG4 09/03/93 1500 NCPM/FRISK AND 500 NCPM/100CM2.

THE SMEAR RXG4 09/03/93 WAS COUNTED ON THE GELI AND FOUND TO HAVE NO RXG4 09/03/93 MEASURABLE GAMMA ACTIVITY, THERE WAS ALSO NO RXG4 09/03/93 DETECTABLE ALPHA PRESENT. RXG4 09/03/93 IN THE MORNING ON 09/02/93 AN RP FOREMAN RXG4 09/03/93 INTERVIEWED THE WORKER AND DETERMINED THAT THE RXG4 09/03/93 WORKER HAD CHECKED OUT SEVERAL HOSES FROM THE RXG4 09/03/93 TOOL ROOM ON 140' AND SOME WATER MAY HAVE RXG4 09/03/93 DRIPPED ONTO HIS SHOE. THE RP FOREMAN DIRECTED RXG4 09/03/93 SEVERAL TECHNICIANS TO PERFORM SURVEYS IN THE RXG4 09/03/93 TOOL CRIB AND THE 115' YARD. THE TECHNICIAN RXG4 09/03/93 SURVEYING THE 115' YARD QUESTIONED THE WORKER RXG4 09/03/93 ABOUT WHERE THE HOSES WERE NOW. THE WORKER TOLD RXG4 09/03/93 THE TECHNICIAN THAT THERE HAD BEEN WATER PRESENT RXG4 09/03/93 IN THE HOSES, SO HE BLEW THE WATER OUT ON THE RXG4 09/03/93 ASPHALT. THE TECHNICIAN SURVEYED THE GROUND AND RXG4 09/03/93 FOUND CONTAMINATION LEVELS UP TO 2.0 MRAD/HR RXG4 09/03/93 (NON-CORRECTED).

RXG4 09/03/93 THE TECHNICIAN NOTIFIED THE RADWASTE FOREMAN. RXG4 09/03/93 AFTER VERIFYING THAT THE AREA HAD BEEN PROPERLY RXG4 09/03/93 POSTED, THE DECON FOREMAN WAS NOTIFIED.

THE RXG4 09/03/93 DECISION WAS MADE TO COVER THE AREA WITH ALARA RXG4 09/03/93 PAINT. RXG4 09/03/93 THE HOSES HAD NO MARKINGS/TAGGING/LABELING TO RXG4 09/03/93 INDICATE THAT THEY WERE RADIOACTIVE.

THE ENDS RXG4 09/03/93 WERE NOT BAGGED OR TAPED OVER. RXG4 09/03/93 Print Date: 07 Jun 10 12:33 PG&E Corporation DIABLO CANYON Page 2 of 3 Print Date: 07 Jun 10 12:33 PG&E Corporation DIABLO CANYON Page 2 of 3 U Notification:

50195082 Type: DN Work Type: EVAL DCOM u o

Description:

Rollover of A0315621 for 10CFR50.75g Order: REFER TO SURVEY NUMBERS: RXG4 09/03/93 93-06745-PERSONNEL CONTAMINATION INCIDENT RXG4 09/03/93 REPORT RXG4 09/03/93 93-06754-FOLLOW UP SURVEY TO PCI RXG4 09/03/93 93-06790-CONTAMINATION SURVEY OF 115' EAST RXG4 09/03/93 YARD. RXG4 09/03/93 CIVIL W.O.# C0118270 (REMOVE AND REPLACE ASPHALT) SKF1 09/17/93 AR MAY BE CLOSED. QE REFERENCED ABOVE HAS BEEN CLOSED. DASl 11/24/93 CIVIL WORK ORDER C01 18270 IS COMPLETE.

PAN1 02/24/94 AE's from A0315621 not included in this DN.No further actions required for this notification.

Documentation only.01/26/2009 14:42:45 Jana M. Orlando (JMSO) Phone 805/545-3126 The issue/event documented on this notification was reviewed by the Notification Review Team (NRT) and determined to be the indicated significance level per OM7.1D1. If additional information is discovered that would affect the significance level determination, contact a member of the NRT.STATUS DETAILS System Status: NOCO NOPT User Status: 20 APPV Approved Print Date: 07 Jun 10 12:33 PG&E Corporation DIABLO CANYON Page 3 of 3