IR 05000289/1975017
| ML19256D580 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 08/18/1975 |
| From: | Knapp P, Meyer R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML19256D577 | List: |
| References | |
| 50-289-75-17, NUDOCS 7910190547 | |
| Download: ML19256D580 (10) | |
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U. S. hTCLEAR REGUU. TORY COMMISSION OFFICE OF INSPECTION AND ENFORCDIE!U
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IR Inspection Report No:
50-289/75-17 Docke* No:
50-289 Licensee:
Metropolitan Edison Comeanv License No:
DPR-50 P. O. Box 542 Priority:
Reading, Pennsylvania Category:
C Safeguards Location:
Three Mile Island 1, Middletevn, Pa.
Type of Licensce:
1,,,e of Inspection:
Hecith Physics (Waste Management)
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D4 of Inspection:
July 30, 31 & August 1, 1975
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E ss of Previous Inspection:
July 22, 1975
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Reporting Inspector:
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R.'J.% eyer,P[adiationSpecialist DATE
Acco=panying Inspectors:
None
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DATE
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Other /.ccompsnf ng Personnel:
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DATE
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P. J. Kncpp, Chief, Facilities
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,DATE Radiological Prote.: ion Secticn 1451
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SUMMARY OF FINDINGS Enforcement Action
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A.
Items of Noncompliance
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Violations None 2.
Infrac; ions None
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3.
Deficiencies None
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B.
Deviations
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None Licensee Action on Previously Identified Enforcement Action
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A.
Items of Noncompliance (Inspection Report 50-289/75-06)
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The licensee's corrective actions with respect to the above reference were reviewed and found to be in accordance with those described in the licensee's letter, R. C. Arnold to Paul R. Nelson, dated May 5, 1975.
The inspector had no further questions on these matters.
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Design Changes
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Not appl! cable Unusual Occurrences A.
Unplanned Release of Radioactive Gas From The Plant Vent on May 24, 1975 The licensee, in accordance with Technical Specifications and 10 CFR 20.403 and 20.405, repo:ted an unplanned release resulting from a pressu:a surge in the vent header relieving through a leak 145!
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in the Miscellaneous Waste Evaporator rupture disc.
The circum-stances of the event and the licensee's evaluation and corrective actions were reviewed by the inspector and were found to be con-sistent with those reported in the licensee's Nonroutine 10-Day Report 75-02, dated June 2, 1975.
The inspector had no further questions on this matter at this time.
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B.
Unplanned Release of Radioactive Gas From The Plant Vent on June 26, 1975 The. licensee, in accordance with Technical Specifications, reported an unplanned release resulting from a pressore surge in the vent header relieving through a leak in the Miscellaneous Waste Evaporator.
Circumstances of the release and the licensee's evaluation and corrective actions were reviewed by the inspector and found to be consistent with those described in the licensee's Nonroutine 10-Day Report 75-03, dated July 3, 1975.
An additional corrective action
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has been initiated which requires that the evaporators, when shut doun, be isolated from the vent header.
The inspector had no furt'.ter questions on this matter.
Other Significant Findings A.
Current Findings
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1.
General a.
A review of the waste management program showed that it was generally consistent with Technical Specifications, FSAR descriptions and Regulatory Guide 1.21.
, Program implementation continues in accordance with approved procedures. Vent header system problems continue under review with modifications scheduled for the first refuel-ing outage. A program has been implemented to identify and repair leaks from the vaste gas handling system and interfacing equipment.
2.
Acceptable Areas (No items of noncompliance noted)
a.
Effluent Release Rates (Details, Paragraphs 2.a-c)
b.
Licensee Reports (Details, Paragraphs 3.a-b)
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Effluent Control Instrumentation (Details, Paragraphs 4a-b)
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Procedures (Details, Paragraph 5)
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Filter Systems (Details, Paragraph 6)
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Reactor Ccolant Water (Details, Paragraph 7)
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Unresolved Item a.
Completion of fix on radiation monitor annunciator delays.
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(Details, Paragraph 8)
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4.
Infractions and Deficiencies Identified by Licensee
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None applicable to this inspection.
Reference Inspection
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Report 50-289/75-06 for a previously identified infraction with respect to an unplanned (A0 75-04) gaseous release.
B.
Status of Previously Identified Unresolved Items (Reference Inspec-tion Report 50-289/75-06)
1.
Licensee's final evaluation of unplanned release subsequent
...z to loss of auxiliary building ventilation was reviewed.
There are no further questions on this matter at this time.
(Details,
Paragraph 9.a-b)
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2.
Licensee's evaluation of radiation monitor annunciator delays.
This matter remains unresolved pending completion of fix.
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(See unresolved item 3.a. above)
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Man.;;E ent Interview
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The following individuals attended the nanagement interview at the~ con-clusion of the inspection on August 1, 1975.
J. Herbein, Manager, Generation Operations - Nuclear J. Colitz, Unit 1 Superintendent
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Romanski, Supervisor, Radiation Protection & Chemistry a.
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M. Buring, Metropolitan Edison, Reading Office
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Ihe following subjects were discussed:
A.
The inspector described the scope of the inspection and stated that no items of noncompliance had been noted in the areas reviewed.
(Details, Paragraphs 2-7)
B.
The inspector stated that he had verified that corrective actions, with respect to previous items of noncompliance, were in agreement with those described in the licensee's letter dated May 5, 1975 and that there were no further questions at this time.
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C.
The inspector stated that he had reviewed the circumstances, evaluations and corrective actions pertinent to the unplanned relcases reported by the licensee in Nonroutine 10-Day Reports 75-02 and 75-03, and had no further questions at this time.
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D.
The inspector stated that he had reviewed the final evaluations and corrective actions pertinent to the unplanned release reported by the licensee in Nonroutine 30-Day Report 75-02 and had no further questions on this catter at this time.
(Details, Paragraphs P.a-b)
E.
In response to the inspector's questions on completion of the fix on radiation monitor annunciator delays, the licensee stated that it would be completed in 90 days -(November 1,1975).
The inspector stated that this matter remained unresolved pending completion of the f3x.
(Details, Paragraph 8)
e F.
The inspector, for purposes of update, discussed the status of the licensee's program to resolve vent header system design deficiencies.
The licensee stated that modifications will begin during the refueling outage (January 1976).
(Details, Paragraph 10)
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J DFTAILS
1, Persons Contacted
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J. Herbein, Manager, Generatien Operations - Nuclear J. Colitz, Unit 1 Supetintendent J. Romanski, Supervisor, Health Physics & Chemistry K. Beale, Health Physics Supervisor D. Trout, Engineering Assistant, Health Physics J. Morgan, Shift Foreman, Operations V. Orlandi, Lead 16C Engineer AE R. Dubiel, Project Engineer J. Showalter, Engineer G. Kunder, Engineer D. Good, Surveillance M. Luring, RS&EE, Reading Office 2.
Effluent Release Rates and Limits a.
The inspector's review included a sampling of liquid and gaseous waste release permits and analytical data for the period July 1, 1974 through June 30, 1975, Semi-annual
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Reports for July-December 1974 (final), and January-June
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1975 (rough draft), and records and evaluations of unplanned I
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releases from July 1974 through July 1975.
The records re-viewed showed that liquid and gaseous releases have been consistent with the requirements set forth in the Technical Specifications, 10 CFR Part 20 and plant procedures, specific to the areas noted below with the exception noted.
(1) Release rates and quantities
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(2) Release point monitoring
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(3) Radionuclide identification
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b.
With respect to a. (1) above, an unplanned release of radio-active gas occurred on January 23, 1975 during which the release rate exceed the technical specification limit.
The release was monitored, evaluated by the licensee and reported as A0 50-289/75-04, in accordance with applicable require-ments.
This event was reviewed during a previous inspection *.
Other rrleases, planned and unplanned, were within the applicable
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limits.
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- Inspeerion Repor-50-289/75-06
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c.
A summary of radioactive vaste releases as determined from release records is shown belcw.
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Liquids
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July-Dec.
Jan.-July 1974 1975 Total releases (excluding tritium)
1.31 Ci
.14 Ci 50 uCi/ml Average concentration 2.09X10-7 uCi/ml 1.24X10 Total dissolved gases 1.27'Ci
.12 Ci Average concentration 2.02X10-5 uC1/ml 1.09X10-8 uCi/ml Total tritium 130 C1 249 Ci -5 Average concentration 2.07710-5 uCi/ml 2.22X10 uCi/ml Gaseous
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July-Dec.
Jan.-July 1974 1975
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Total noble gases 916 Ci 1,120 Ci
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i+a 3.
Reports of Radioactive Effluents The inspector reviewed the licensee's semi-annual reports and a.
determined that reports have been submitted in accordance with Technical Specification 6.7.1.
The rcports submitted to date, beginning with initial criticality, are noted below:
(1) Report dated August 29, 1974 for period June 5 -Jone 30',
1974 (Initial criticality on June 5)
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Report dated March 1, 1975'for period July 1 - December 31, 1974 (3) Report (rough draft not yet submitted) for* period January 1 - July 31, 1975.
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b.
The review showed that analytical data and data reduction records were on file.
The submitted reports were consistent with the data recorded in the working records.
Records re-viewed are noted below.
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(1)
Batch releases (liquid and gaseous)
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Analytical data (3)
Summary sheets (4) Unplanned releases
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4.
Effluent Control Instrumentation a.
The inspector's review of records pertinent to calibration, operability and automatic isolation functions of liquid and
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gaseous effluent monitors showed that surveillance and oper-ability has been consistent with the requirements of technical specifications.
Areas included in the review are noted below covering the period from October 1, 1974 through July 31, 1975.
(1)
Surveillance records (a)
Calibration (b)
Functional checks
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(c) Automatic closure
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(2)
Calibration procedures (3) Alarms and setpoints
(4) Response comparison with analytical data
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b.
With respect to Item 4.a.(3) above, problems specific to the
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liouid waste monitor setpoint for automatic volve closure
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were identified during a concurrer.: inspection.
See Inspection
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Report 50-289/75-16 for details.
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Effluent Release Procedures a.
The inspector determined that releases have been made in accordance with established and approved procedures.
It was noted that revisions to procedures have been made based _on,
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implementation experience.
It was further noted that revisions were reviewed and approved in accordance with the requirements set forth in administrative procedures and the technical specifications.
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Filter Systems
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a.
The inspector reviewed surveillance records pertinent to the
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testing of the air filter systems and found that testing of these systems had been performed in accordance with the technical specification requirements.
The records and test results reviewed covered the period from July 1, 1974 through June 30, 1975.
Recorded test results showed that acceptance criteria had been met.
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7.
Surveillance records and test results were examined by the
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inspector to determine conformance with technical specification
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requirements.
The rccords reviewed showed that surveillance
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sampling and analysis has been consistent with Table 4.1-3 requirements to show that limits established by Technical
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Specification 3.1.4 and 3.1.5 have not been exceeded.
Records
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reviewed covered the period from January 1 to July 31, 1975.
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b.
Primary coolant radioactivity as determined by the licensee on July 25, 1975 is noted below:
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Gross Beta Iodine-131 Iodine 131 to 133 Tritium 6.27X10-1 uCi/ml 1.62X10-2 uCi/ml 1.1 1.87X10-1 uCi/ml x.
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Radiation Monitor Annunciator Delays
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a.
The inspector revidwed the status of annunciator delays evaluations and corrective actions to date.
This was identified as an unresolved item during a previous inspection *.
According to the licensee, the delay problem is caused by deterioration of an electronic component.
The fix, according to the licensee
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I is approximately 50% complete.
It was noted Chat those monitors pertinent to assurance that technical specifications will be met have been repaired.
With respect to completion of the fix, the licensee stated that it would be accomplished within 90 days (November 1, 1975).
The inspector stated that this matter was considered as unresolved pending completion of the fix.
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Radioactive Gas Leakage
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a.
During a previous inspection * an unplanned release subsequent to loss of the ventilation system in the auxiliary building was reviewed.
The licensee's findings indicated that low level leakage from the waste gas system to the auxiliary building was evident.
The inspector identified'this as an unresolved item pending further evaluation and identifica' tion and repair of existing leaks.
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b.
During this inspection the licensee's continuing efforts to resolve the leakage problem were reviewed.
It was noted that a project engineer has been assigned responsibility for the program.
To date, specific leaks have been identified and repaired.
Subsequent to leak repair, the ventilation system has been shutdown to provide time for radioactive gas buildup in the auxiliary building.
This was done on two occasions with no buildup detec :ed, as determined by local air sampling during shutdown and a rev1.ew of exhaust radiation monitor l
response after starttp of the ventilation system.
The
lice..see's findings indicate that current leakage has been reduced to minimal levels.
The licensee stated that they vill continue to follow waste gas system evaluations for identifiable leakapc.
Tha inspector stated that this matter was considered resolved and had no further questions at the present time.
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10.
Vent Header, System (Ref. Inspection Re: ort 50-289/75-06)
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The incpector discussed the status of system modifications with the licensee for update information purposes only. As described by the licensee, evaluation of system problems and
_g design deficiencies is continuing with some design work currently being drafted. Modification of the system is scheduled for the January 1976 refueling outage.
Preliminary
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planning and scheduling for the modification As in progress.
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