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Event Notification Report for August 11, 2000

                    U.S. Nuclear Regulatory Commission
                              Operations Center

                              Event Reports For
                           08/10/2000 - 08/11/2000

                              ** EVENT NUMBERS **

37212  37219  37220  

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|Power Reactor                                    |Event Number:   37212       |
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| FACILITY: PEACH BOTTOM             REGION:  1  |NOTIFICATION DATE: 08/08/2000|
|    UNIT:  [] [3] []                 STATE:  PA |NOTIFICATION TIME: 01:24[EDT]|
|   RXTYPE: [2] GE-4,[3] GE-4                    |EVENT DATE:        08/07/2000|
+------------------------------------------------+EVENT TIME:        21:26[EDT]|
| NRC NOTIFIED BY:  WINGFIELD                    |LAST UPDATE DATE:  08/10/2000|
|  HQ OPS OFFICER:  CHAUNCEY GOULD               +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |LAWRENCE DOERFLEIN   R1      |
|10 CFR SECTION:                                 |                             |
|ARPS 50.72(b)(2)(ii)     RPS ACTUATION          |                             |
|AESF 50.72(b)(2)(ii)     ESF ACTUATION          |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR|   INIT RX MODE  |CURR PWR|  CURR RX MODE   |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|                                                   |                          |
|3     A/R        Y       100      Power Operation  |0        Hot Shutdown     |
|                                                   |                          |
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                                   EVENT TEXT                                   
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| AUTO REACTOR SCRAM FROM 100% POWER ON A FALSE LOW REACTOR WATER LEVEL        |
| INDICATION                                                                   |
|                                                                              |
| Unit 3 experienced an automatic reactor scram when an instrument line "root" |
| valve failed causing a water leak which resulted in a false low reactor      |
| water level signal indication sensed by the reactor protection system.  The  |
| water leak was immediately isolated by the engineered safety features        |
| actuation of the excess flow check valve in the same reactor instrumentation |
| line.  All control rods fully inserted, no emergency core cooling system     |
| injection occurred, no relief valves lifted and all safety systems responded |
| correctly.  Unit 3 also had an actuation of the primary containment          |
| isolation system following the reactor scram.                                |
|                                                                              |
| The NRC Resident Inspector will be notified by the licensee.                 |
|                                                                              |
| * * * UPDATE AT 1230 ON 08/10/00 BY STEVE BECK TO JOLLIFFE * * *             |
|                                                                              |
| The following additional information regarding this event is provided by the |
| licensee:                                                                    |
|                                                                              |
| During scram recovery, due to a false low reactor water level signal, the    |
| reactor building ventilation system could not be reset and placed in         |
| service.  Reactor building temperatures increased to the alarm setpoint and  |
| the crew entered the Secondary Containment Control Emergency Operating       |
| Procedure (EOP). The EOP directed the crew to restore ventilation via a      |
| supplemental procedure which directed overriding the false low reactor water |
| level signal using jumpers. The crew installed the jumpers and restored the  |
| normal ventilation system and reactor building temperatures returned to      |
| normal.  With the jumpers installed, the high drywell pressure and low       |
| reactor water level initiation signals to the Standby Gas Treatment (SBGT)   |
| System were overridden.  Inhibiting the SBGT System initiation signals is    |
| reportable per 10CFR50.72(b)(2)(iii)(C) and 10CFR50.73(a)(2)(v).             |
|                                                                              |
| All systems have since been restored to normal status.                       |
|                                                                              |
| The licensee notified the NRC Resident Inspector.  The NRC Operations        |
| Officer notified the R1DO John Rogge.                                        |
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|Fuel Cycle Facility                              |Event Number:   37219       |
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| FACILITY: PORTSMOUTH GASEOUS DIFFUSION PLANT   |NOTIFICATION DATE: 08/10/2000|
|   RXTYPE: URANIUM ENRICHMENT FACILITY          |NOTIFICATION TIME: 01:55[EDT]|
| COMMENTS: 2 DEMOCRACY CENTER                   |EVENT DATE:        08/09/2000|
|           6903 ROCKLEDGE DRIVE                 |EVENT TIME:        15:20[EDT]|
|           BETHESDA, MD 20817    (301)564-3200  |LAST UPDATE DATE:  08/10/2000|
|    CITY:  PIKETON                  REGION:  3  +-----------------------------+
|  COUNTY:  PIKE                      STATE:  OH |PERSON          ORGANIZATION |
|LICENSE#:  GDP-2                 AGREEMENT:  N  |RONALD GARDNER       R3      |
|  DOCKET:  0707002                              |C.W. (BILL) REAMER   NMSS    |
+------------------------------------------------+FRANK CONGEL         IRO     |
| NRC NOTIFIED BY:  ERIC SPAETH                  |                             |
|  HQ OPS OFFICER:  DOUG WEAVER                  |                             |
+------------------------------------------------+                             |
|EMERGENCY CLASS:          N/A                   |                             |
|10 CFR SECTION:                                 |                             |
|NBNL                     RESPONSE-BULLETIN      |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
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                                   EVENT TEXT                                   
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| BULLETIN 91-01 24 HOUR REPORT                                                |
|                                                                              |
| At 1520 hours on 8/9/00, it was discovered that a Nuclear Criticality Safety |
| Approval (NCSA) non-compliance had occurred in the X-705 decontamination     |
| facility.  During a routine walk-through by the NRC Resident Inspector, two  |
| (2) violations of the X-705 Inadvertent Containers NCSA, NCSA-0705_076, were |
| noted.  The conditions noted were as a follows:                              |
|                                                                              |
| - An open plastic bag containing used personal protective clothing (PPE) was |
| discovered lying in the Tunnel Basement.                                     |
| - A shelving unit, adjacent to the Microfiltration system was found to       |
| contain cardboard boxes, loosely wrapped in plastic.                         |
|                                                                              |
| Both of these areas are covered by the controls of NCSA-0705_076.  It was    |
| determined that these arrays had the potential to collect an unsafe          |
| configuration of Uranium-bearing material.                                   |
|                                                                              |
| This event resulted in the loss of one control (geometry/volume) of the      |
| double contingency control principle. The physical integrity of all nearby   |
| systems containing uranium-bearing material was maintained throughout this   |
| event.                                                                       |
|                                                                              |
| NCSA-0705_076 compliance was restored at 1620 hours when the on duty NCS     |
| engineer authorized the removal of these items from there respective areas.  |
|                                                                              |
| The licensee informed the NRC resident inspector that this report would be   |
| made.                                                                        |
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|Other Nuclear Material                           |Event Number:   37220       |
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| REP ORG:  COGEMA MINING, INC.                  |NOTIFICATION DATE: 08/10/2000|
|LICENSEE:  COGEMA MINING, INC.                  |NOTIFICATION TIME: 10:13[EDT]|
|    CITY:  LINCH                    REGION:  4  |EVENT DATE:        08/09/2000|
|  COUNTY:  JOHNSON                   STATE:  WY |EVENT TIME:        13:00[MDT]|
|LICENSE#:  SUA-1341              AGREEMENT:  N  |LAST UPDATE DATE:  08/10/2000|
|  DOCKET:                                       |+----------------------------+
|                                                |PERSON          ORGANIZATION |
|                                                |KRISS KENNEDY        R4      |
|                                                |C.W. (BILL) REAMER   NMSS    |
+------------------------------------------------+MIKE LAYTON          NMSS    |
| NRC NOTIFIED BY:  JOHN VASELIN                 |                             |
|  HQ OPS OFFICER:  DOUG WEAVER                  |                             |
+------------------------------------------------+                             |
|EMERGENCY CLASS:          N/A                   |                             |
|10 CFR SECTION:                                 |                             |
|NLTR                     LICENSEE 24 HR REPORT  |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
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                                   EVENT TEXT                                   
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| MONITOR WELL ON EXCURSION STATUS                                             |
|                                                                              |
| A routine quarterly (every 3 months) water sample collected on August 7,     |
| 2000, from monitor well M2, exceeded 2 of its 3 upper control limits (UCLs). |
| A confirmation sample was collected August 9,  which also exceeded 2 UCLs.   |
| Monitor well M2 was then placed on excursion status per license section 11.2 |
| and its sampling frequency increased to weekly.  Monitor well M2 is a        |
| perimeter ore zone monitor well located approximately 300 feet east of the   |
| restored Production Unit 2 boundary, at the Irigaray Mine, Johnson County    |
| Wyoming.  The nearest community is Linch, Wyoming, approximately 23 miles to |
| the southeast.                                                               |
|                                                                              |
| Date                           Chlorides                  Conductivity       |
| Alkalinity                      Uranium                                      |
| Sampled                      (mg/I)                      (umhos/cm2)         |
| (mg/I)                      (mg/I U-308)                                     |
| (UCL 18.0)                   (UCL 685)                     (UCL 131.1)       |
| (no UCL)                                                                     |
| 08-07-00                       18.2                              733         |
| 105.5                            <0.4                                        |
| 08-09-00                       19.0                              779         |
| 98.8                            <0.4                                         |
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