IR 05000293/1980012
| ML19312E532 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 04/17/1980 |
| From: | Joyner J, Roxanne Summers, Woltner E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML19312E517 | List: |
| References | |
| 50-293-80-12, NUDOCS 8006050149 | |
| Preceding documents: |
|
| Download: ML19312E532 (12) | |
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U. S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION I
Report No.
50-293/80-12 Docket No.
50-293 License No.
DPR-35 Safeguards Group
Category C
Licensee:
Boston Edison Company 800 Boylston Street Boston, Massachusetts 02199 Facility Name:
Pilgrim Nuclear Power Station
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Investigation At:
Plymouth, Massachusetts Investigation Conducted:
March 5-7, and 19-20, 1980 Investigators: 8 M/dtvM 4-/(.- s o Edward Woltne6 Mfeguards Auditor date Y-17-SO
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R. Summers, Safeguards Auditor date D. &$ /944-%
(/c,.80 G. C. Smith, Kategcirds Auditor date
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f - / 7-Fo D. Ke e, Reactor Inspector date
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Y kl 4 - / 7-9D W
K. Roberts, e. actor Inspector date j
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,,pproved by:
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. H. Joyner, Chi f, / Nuclear Material Control date upport Se
, Safeguards Branch Investigation Summary:
Investigation of allegations that spent fuel rods had been buried illegally at the Barnwell, S.C., low-level waste burial ground operated by Chem-Nuclear Systems, Inc.
The investigation involved 57 investigative hours on site by three NRC regional based inspectors and two NRC Reactor Inspectors and was begun during the regular hours.
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Results:
No apparent items of noncompliance were identified in connection with the allegation that was investigated.
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Region I Form 167 l
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TABLE OF CONTENTS I.
Background A.
Reason for Investigation B.
Identificahion of Involved Organizations II.
Summary of Findings A.
Allegation B.
Investigation Findings III.
Details A.
Specification of Reason for Investigation
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B.
Scope of Investigation C.
Personnel Directly Interviewed and/or Contacted During the NRC Investigation D.
Investigation Details E.
Management Meeting
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Background A.
Reason for Investigation In the March 4, 1980 issue of the Washington Post an article titled "S.C.
Officials Probe Allegations of Illegal Dumping of A-Waste" identified the Boston Edison Company's Pilgrim plant as one of the facilities involved in the alleged shipment of spent fuel rods to the Barnwell, S.C. low level waste burial ground operated by Chem-Nuclear Systems, Inc.
An investigation into the allegation was initiated by the NRC, Region I, on March 4, 1980.
B.
Identification of Involved Organizations 1.
Boston Edison Company (BECo)
800 Boylston Street Boston, Massachusetts 02199
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A utility company licensed by NRC to operate the Pilgrim Nuclear Power Station, Plymouth, Massachusetts.
2.
Chem-Nuclear Systems, Inc. (CNS)
Barnwell, South Carolina An organization licensed by the State of Snuth Carolina to operate a burial ground at Barnwell, South Carolina.
3.
Northeast Nuclear Energy Company P.O. Box 270 Hartford, Connecticut 06101 A utility company licensed to operate the Millstone Point Nuclear Power Station, Waterford, Connecticut.
4.
Connecticut Yankee Atomic Power Company P.O. Box 270 Hartford, Connecticut 06101 A utility company licensed to operate the Haddam Neck Nuclear Power Station, Haddam Neck, Connecticut.
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II.
Summary of Findings A.
Allegation That 26 shipments of spent fuel rods from Boston 5dison Company's Pilgrim Nuclear Power Plant were shipped in motor cooled casks to Barnwell, South Carolina, and buried between mid-1977 and January 1978.
B.
Investigation Findings 1.
The NRC investigation found no information to substantiate this allegation.
2.
No appz 2nt items of noncompliance were identified during the investi jation.
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III.
DETAILS A.
Specification of Reasons for Investigation A news article in the March 4, 1980, edition of the Washington Post news-paper concerned " allegation of illegal dumping of A-waste." The article specified that the South Carolina Attorney General's Office had begun an investigation into the allegations made by a former accountant for Chem-Nuclear Systems, Inc., operator of a low-level nuclear waste dump at Barnwell, South Carolina.
The alleger is reported to have said that 26 shipments of spent fuel from Boston Edison Company's Pilgrim Nuclear Power Plant were buried at Barnwell between mid-1977 and January 1978.
The fuel was alleged to have been shipped in a cask referred to as the
" Silver Bullet." The cask is alleged to have an external system to cool the rods inside the cask.
io other unnamed utilities were also alleged to have sent spent fuel to Bari well.
One of these two utilities was subse-quently identified by the alleger as Northeast Nuclear Energy Company, ope-rator of the Haddam Neck and Millstone Point Nuclear Power Stations.
These shipments were alleged to have occurred in the October 1977-March 1978 period.
The Barnwell, South Carolina burial site is operated by Chem-Nuclear Systems,
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Inc., under license to the State of South Carolina. Accordingly, it is the responsibility of the State of South Carolina to investigate the alleged il-legal dumping activities. However, Boston Edison Company (BECo) is licensed by the NRC to operate the Pilgrim Nuclear Power Station and to possess special nuclear material. Similarly, Connecticut Yankee Atomic Power Company (CYAPC)
and Northeast Nuclear Energy Company (NNEC) are licensed to operate, respec-tively, the Haddam Neck and Millstone Point Nuclear Power Stations.10 CFR Parts 20 and 70 require licensed material to be transferred only to an authorized recip-ient. CNS is not authorized to receive spent nuclear fuel. An investigation was conducted to determine if spent fuel had been illegally shipped by BEC0, CYAPC, or NNEC.I B.
Scope of Investigation This investigation included an examination of pertinent documents and records, j
a physical inventory of all fuel assemblies, and review of videotape closeups of some of the fuel assemblies at the Pilgrim site, interviews and contacts with licensee personnel, and observations by the investigators.
The investi-gators were assisted by two NRC Region I Reactor Inspectors assigned to the Pilgrim facility.
Further, Reactor Inspectors at the Haddam Neck and Millstone Point site reviewed pertinent documents and records.
l C.
Persons Directly Interviewed and/or Contacted During the NRC Investigation
- P. McGuire, Pilgrim Station Manager l
- J. Aboltin, Senior Reactor Engineer, Pilgrim
- G. Whitney, Plant Engineer, Pilgrim M. Hensch, Chief Radiological Engineer, Pilgrim
- C. Mathis, Methods, Compliance & Training Group Leader, Pilgrim l
C. Martin, Acting Chief Technical Engineer, Pilgrim J. Alukonis, Watch Engineer, Pilgrim 1 Inspection Reports 50-245/80-04 and 50-336/80-03 (Millstone Point) and 50-213/80-04 (Haddam Neck).
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K. Taylor, Watch Engineer, Pilgrim H. Drake, Operations Supervisor, Pilgrim E. Cobb, Chief Operating Engineer, Pilgrim V. Stagliolo, Assistant Chief Radiological Engineer, Pilgrim Individual A, who requested anonymity W. Mohr, Manager, Northeastern Region, Chem-Nuclear Systems, Inc.
The inspectors also interviewed other licensee employees on site at Pilgrim, Haddam Neck and Millstone Point.
- Denotes those present at the exit interviews on March 7 and 20, 1980.
D.
Investigation Details Two investigators from the Region I office of the Nuclear Regulatory Commission arrived at the Pilgrim site on March 5, 1980.
The investigators, independent of the licensee's (BECo) records, developed a book balance of all special nuclear material (SNM) units (fuel assemblies, fuel rods and fuel loading chambers (FLC)) that should have been on site as of March 5, 1980.
This balance included both receipts and shipments of SNM since prior to initial operation of the reactor (initial criticality was June 16, 1972).
Data were obtained from the Oak Ridge, Tennessee, Computing Technology Center (CTC) regarding shipments of SNM made to the Pilgrim facility.
A Nuclear Material Transaction Report (Form NRC-741) is required to be initiated by each shipper of SNM and required to be signed by the receiver of the SNM.
A copy of the completed form is maintained on file in Oak Ridge and a printout of all such transactions involving the Pilgrim facility was obtained from the CTC.
Of particular interest were records of all shipments of SNM to Pilgrim since this would provide an independent record from which a plant inventory could be developed.
Receiots from July 8, 1971 to February 29, 1980 were included.
Additional information was obtained from NRC Region I Inspection Reports 50-293/74-16, dated October 30, 1974, and 50-293/77-29, dated December 9, 1977.
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These data resulted in a balance of 1344 fuel assemblies and 5 FLC's.
The licensee's records agreed with this balance.
The licensee's SNM Inventory Summary dated February 21, 1980 reflected the same number of items, with the exception of one fuel assembly received on February 29, 1980.
Updating the SNM Inventory Summary to March 5,1980, resulted in the same total number of fuel assemblies as derived by the investigators.
On May 10, 1972, the licensee received 47 unirradiated fuel rods from the General Electric Company (G.E.), Wilmington, North Carolina, (NRC-741 document YLJ-YPK-41).
Thirty-four of the 47 fuel rods were installed in 29 of the 580 fuel assemblies on site and a total of 47 rods were returned to GE on June 1, 1972 (NRC-741 document YPK-YLJ-20).
GE acknowledged both the shipment and return of 47 rods.
The 580 fuel assemblies made up the initial core loading and were loaded to the reactor during the period June 8-19, 1972.
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May 10, 1972 to June 1, 1972 was the only period of time that individual fuel rods were on inventory at the Pilgrim site, based on information ob-tained from the Oak Ridge CTC and on documents acknowledged by both Boston Edison and G.E.
On March 6,1980, the investigators verified the inventory of fuel assemblies.
The inventory consisted of 1343 assemblies in the spent fuel pool and one assembly in the new fuel vault.
The plant, at the time of the investigation, was in a refueling outage and no fuel was in the reactor.
The physical inventory map maintained by the licensee, listing serial numbers of the assemblies by location, was verified to the tag board in the control room.
The investigators visually checked the inventory map against the location of all the fuel assemblies in the spent fuel pool but were unable to verify assembly serial numbers due to the turbidity of the water.
On March 7, 1980, the inspectors visually verified the presence of the five FLC's.
On March 18, the licensee agreed to use their underwater TV camera to attempt to confirm the presence or absence of individual fuel rods in irradiated fuel assemblies.
The spent fuel pool filter system was employed for approximately 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to reduce the turbidity of the water to an acceptable level.
In the presence of an NRC inspector the TV camera was utilized on March 19 to inspect fuel assemblies.
A video tape was made in the presence of a second NRC inspector.
On March 20, an investigator reviewed the video tape.
The camera provided good resolution once the lighting was properly oriented.
It was observed that, even under good conditions, the presence of all of the rods in an assembly could not be verified because of visual interference by the support flanges on two corners of the fuel channel and by the fuel assembly lifting handle.
It could be seen that several rods in each assembly protrude above the upper tie plate and are easily visible but the remaining rods are slightly depressed with respect to the top surface of the upper tie plate so that only what is apparently the top end of the fuel rod can be seen.
The table below summarizes the extent to which assembly hardware interferes with verification that all rod positions in the upper tie plate are occupied.
Rods Not Visible Type of Number of No. of Rods Totri Under Fuel Under Lift-Assembly Assemblies Fuel Water Rogg Channel Corn.
ing Handle 7X7 580
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8X8R 184
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12
Because all rods could not be seen without removing the fuel channel, with the approval of the Director, NRC Office of Inspection and Enforcement, further attempts at visual verification of the rods were abandoned.
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The only detailed records associated with the shipment of radioactive material from Pilgrim are those maintained by the shipper, BECo, and by the receiver, CNS.
The investigators recognized that these records would likely be incomplete or falsified if illegal shipments of spent fuel had actually been made.
However, if the alleger were mistaken about the alleged spent fuel shipments, the records might identify the basis for the confusion.
The investigators performed a detailed review of shipping records maintained by the licensee and of records of shipments and other information provided by the CNS Regional Manager.
The latter's shipping records were found to be incomplete but otherwise not inconsistent with the BECo records.
The documents reviewed included the following:
1.
Radioactive Shipment Record (RSR):
a form completed by BECo for each shipment of radioactive material to document the type and quantity of material being shipped.
The shipping container identification and date of shipment are also included on the form.
A copy of the form is retained by the shipper and copies of the form accompany the shipment, including one for retention by the receiver.
2.
BECo Record Display - Radioactive Shipments:
a computerized listing of shipments of radioactive waste, including a brief description of the material shipped (e.g., contaminated laundry, resin, poison curtain),
the date of the shipment and the radioactive material shipment record (RSR) reference.
3.
Shipment Invoice Summary:
a listing supplied by CNS for shipments made by Chem-Nuclear for the Pilgrim Nuclear Station during the period January 1977 - October 1978.
The list includes a summary of the contents of each shipment, radiation level, radioactive shipping record reference and identification of the cask type or van used for the shipment.
4.
CNS Transport Equipment Description:
a listing provided b/ CNS of summary descriptions of each type of shipping container or other equipment available from CNS for shipment of radioactive material.
5.
Procedure 78-45, " Handling Transportation Cask CNS-1-13G," and Procedure 78-31, " Handling NFS-4 Shipping Cask":
Pilgrim operating procedures which are completed each time the applicable cask is shipped.
All radioactive shipment records at Pilgrim for the period June 1, 1977 through January 31, 1978 were reviewed.
These forms are sequentially numbered but are not prenumbered.
A total of 202 radioactive shipments to burial were made in the June 1977 through January 1978 period.
Review of each of these RSR's revealed none that were identified as containing spent fuel rods.
Further, none of the contents of the 202 shipments, as described on the RSR's, contained terminology similar to " spent fuel rods."
The RSR's revealed two CNS casks that were large enough and provided enough shielding to potentially transport spent fuel rods.
Review of NUREG-0383,
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" Directory of Certificates of Compliance for Radioactive Materials Packages,"
revealed that Cask CNS 1-13G has NRC Certificate of Compliance No. 9044 and that BECo is licensed to use the cask; Cask NFS-4 has NRC Certificate of Compliance No. 6698 and BECo is also licensed to use this cask.
Further review of NUREG-0383 and discussions with the CNS Northeastern Regional Manager revealed that the NFS-4 cask is very similar in appearnce to Cask CNS 4-45, which is frequently referred to as the " Silver Bullet." Cask CNS 4-45 has NRC Certificate of Compliance 6375 and is licensed for use by BECo, although the CNS Regional Manager stated that it was not used by BECo during the period in question.
None of the above casks have a motor-driven cooling system as described by the alleger.
Pictures of the three casks are included as Exhibits I, II and III.
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Interviews with numerous individuals at the Pilgrim site, including all of the Pilgrim site individuals identified in Section III.C., revealed that no one participated in, nor was aware of, any actions involving the disassembly or shipment of irradiated (" spent") fuel from the Pilgrim site at any time.
On March 6,1980, a call was received by the Region I Public Affairs Officer from Individual A, who reportedly had previously worked at Pilgrim and had information concerning the allegations.
Subsequent telephone attempts to reach Individual A were unsuccessful and a certified letter was mailed on March 12 requesting a return call.
Individual A contacted the Region I office on March 18.
Individual A worked at Pilgrim in 1978 and 1979 and was involved in the packaging and shipment of r dioactive waste.
Indivi-dual A reported that every attempt was made by BECo to package and ship all such waste "by the book" and that no shipments of spent fuel were made during the 19 months Individual A was at Pilgrim.
However, Individual A did not start work at Pilgrim until after the period in which the spent fuel shipments are alleged to have occurred.
Radioactive shipping records for the period October 1977-March 1978 at the Haddam Neck and Millstone Point Nuclear Power Stations were reviewed.
Records at Haddam Neck revealed that only low specific activity waste and spent resins had been shipped to CNS.
Records at Millstone Point revealed that seven control rod blades were shipped to Barnwell on February 16, 1978 but that no other high activity waste had been shipped.
E.
Management Meeting M.%gement meetings were conducted at the Pilgrim site on March 7, 1980 and
March 20, 1980 with Mr. P. MCGuire, Pilgrim Station Manager.
The inspectors discussed the reason and scope of the investigation.
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