IR 05000237/1988024
| ML17201M201 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 10/18/1988 |
| From: | Greger L, Miller D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML17201M200 | List: |
| References | |
| 50-237-88-24, 50-249-88-25, IEIN-87-007, IEIN-87-031, IEIN-87-31, IEIN-87-7, IEIN-88-008, IEIN-88-022, IEIN-88-22, IEIN-88-8, NUDOCS 8810250490 | |
| Download: ML17201M201 (7) | |
Text
U.S. NUCLEAR REGULATORY COMMISSION
REGION III
Reports No. 50-237/88024(DRSS); 50-249/88025(DRSS)
Docket Nos. 50-237; 50-249 Licenses No. DPR-19; DPR-25 Licensee:
Commonwealth Edison Company Post Office Box 767 Chicago, IL 60690 Facility Name:
Dresden Nuclear Power Station, Units 2 and 3 Inspection At:
Dresden Site, Morris, Illinois Inspection Conducted:
September 26-30, 1988
- j;. Ef. "ii~/
Inspector:
D. E. Miller Accompanying Personnel:
W. W, Ogg
~ef Facilities Radiation Protection Section Approved By:
Inspection Summary
/0 -/k-$!5 Date 1c-/6'-e8 Date Inspection on September 26-30, 1988 (Reports No. 50-237/88024(DRSS);
50-249/88025(DRSS))
Areas Inspected:
Routine unannounced inspection of the licensee 1s radwaste management program, including organization and management controls (IP 83722; 84722; 84750), solid radioactive waste (IP 84722; 84750), liquids and liquid wastes (IP 84723; 84750), gaseous radwaste (IP 84724; 84750), transportation (IP 86721), audits (84750), and Unit 2/3 SGTS (IP 84724; 84750).
Also reviewed were past open items and selected NRC Information Notices. -
Results:
Solid radwaste volumes shipped for burial have decreased, there*
were no transportation incidents, and liquid and gaseous effluents are a small fraction of limits and objectives. Overall, the radwaste management*
program is improving in efficiency and attention to detail No viplations or deviations were identifie *
~gA02so490 a01010
,
G ADOCK 05000237 PNU
- DETAILS Persons Contacted A. Brewer, Instrument Maintenance Foreman S. Briley, Systems Engineer
- J. Brunner, Assistant Superintendent, Technical Services
- E. Eenigenburg, Station Manager L. Jordan, Group Leader, Operations/ALARA; Health Physics Services (HPS)
- T. Lewis, Regulatory Assurance Staff
- D. Morey, Chemistry Services Supervisor
- E. Netzel, Quality Assurance Superintendent L. Oshier, Group Leader, Technical, HPS
- K. Peterman, Regulatory Assurance Supervisor
- D. Saccomando, HPS Supervisor
- C. Schroeder, Superintendent, Services D. Sharper, Waste Systems Engineer G. Smith, Systems Engineer S. Stiles, Training Supervisor K. Yates, Supervisor, Onsite Nuclear Safety T. Ziakis, Group Leader, Services; HPS
- K. Ridgway, -NRC Senior Resident Inspector The inspectors also contacted several other licensee personnel.
- Denotes those at the exit meetin General This inspection was conducted to review the licensee's radwaste management program Also reviewed were past open items and selected NRC Information Notice The inspectors_ toured solid radwaste handling, packaging, and storage areas; overall cleanliness and housekeeping in these areas has improve The inspectors observed liquid and gaseous effluent monitoring and sampling equipment for operability and observable*
condition; no problems were note ~
Licensee Actions on Previous Inspection Findings (Closed) Open Item (237/88011-03; 249/88013-03):
Maintenance of IONS operated equipmen The licensee now performs routine surveillances of the IONS sampling building, and a radiation work permit specifies necessary IONS and health physics services interface (Closed) Open Item (237/87036-02; 249/87035-02):
Cleanup of Unit 1 fuel poo The pool is being cleaned by a contracto Appropriate ALARA reviews and waste disposal planning were performe Methods of maintaining the pool clean, after the cleanup is completed, are being considere * Organization and Management Controls (IP 83722; IP 84722; 84750)
The inspectors reviewed the licensee's organization ~nd management controls for the radwaste management progra Also reviewed was the effectiveness of p~ocedures*and other manag~ment techniques used to implement the radwaste program, and experience concerning self-identification and correction of program implementation weaknesse Audits are discussed in Section The licensee recently altered the station's rad/chem functions by eliminating the rad/chem supervisor position and establishing separate health physics and chemistry organizations which report to the assistant superintendent~ technical service The health physics organization is headed by a health physics services supervisor (HPSS).
Reporting to the HPSS are three group leaders titled technical, operations/ALARA, services, and the GSEP coordinato Each group leader has specified functional responsibilitie The HPSS and group leaders are qualified to hold their respective positions. Additionally, the HPSS is qualified as Radiation Protection Manager in accordance with Regulatory Guide The licensee plans to permanently assign rad/chem technicians to either health physics or chemistry during the week of October 3, 198 No violations or deviations were identifie.
Solid Radioactive Waste (IP 84722; 84750)
The inspectors reviewed the licensee's solid radioactive waste management program, including:
determination whether changes to equipment and procedures were in accordance with 10 CFR 50.59; adequacy of implementation procedures to properly classify and characterize waste, prepare manifests, and mark packages; overall performance of the process control and quality assurance programs; adequacy of required records, reports, and notifications; and experience concerning identificatfon and correction of programmatic wea~nesses. Audits are discussed in Section No significant changes in the licensee's methods of packaging solid radwaste were noted except that most DAW is now either supercompacted at a contractor site or is delivered to a reprocessor for decontamination/
recovery; very little DAW is sent directly from the station to a burial sit In addition to the above methods of waste volume reduction, the licensee is concentrating on methods of minimizing generation of DAW and segregation of generated potentially contaminated waste As a result, the volume of solid radwaste shipped for burial. is reducin The inspectors selectively reviewed records of waste characteri~ation/
classification, package marking, and required records* and reports for 1988 to date; no problems were note ~o violations or deviations were identi~ie.
Liquids and Liquid Radioactive Wastes (IP 84723; 84750)
The inspectors reviewed the licensee's reactor liquids and liquid radwaste management.programs, including:
determination whether changes to equipment and procedures were in accordance with 10 CFR 50.59; determination whether reactor liquids meet chemical and radiochemical requirements; determination whether liquid radioactive waste effluents were in accordance with regulatory requirements; adequacy of required records, reports, and notifications; determination whether process and effluent monitors are maintained, calibrated, and operated as required; and experience concerning identification and correction of programmatic weaknesse The inspector selectively reviewed records of batch liquid radwaste releases made during 1988 to dat It appears that the technical specification requirements for sampling, analysis, and release concentrations have been complied wit Calibration and testing of the liquid radwaste monitor is being performed as require No problems were note The licensee is modifying the service water monitors by relocating the detectors to lower background area When the relocation is completed, the monitors will be recalibrated before becoming operationa The licensee plans to have the monitors operational by December 1, 1988;
~ntil then, the liceniee will continue to comply with the technical specification action statement for the inoperable service water monitor During review of the licensee's semiannual effluent reports, the inspector noted several apparent errors in the January through June 1988 repor During discussions with a licensee representative concerning this matter, the representative determined that the apparent errors resulted from calculational mistake This matter was discussed with other licensee representatives during the inspection and at the.exit meeting and will be further reviewed during a future inspection (Open Item 237/88024-01; 249/88025-01).
No violations or deviations were identifie One open item remain.
Gaseous Radioactive Waste (IP 84724; 84750)
The inspectors reviewed the licensee's gaseous.radwaste management.
program, including:
determination whether changes to equipment and procedures were in accordance with 10 CFR 50.59; determination whether gaseous radioactive waste effluents were in accordance with regulatory requirements; adequacy of required records, reports, and notifications; determination whether process and effluent monitors are maintained, calibrated, and operated as required; and experience concerning identification.and correction of programmatic weaknesse The licensee*s gaseous effluent monitoring and sampling systems remain as described in Inspection Reports No. 50-237/85022(DRSS); 50-249/85018(DRSS).
Records of particulate, iodine, and noble gaseous radioisotope sampling, analy~is, and,quantification were selectively reviewed for 1988 to dat No problems were note The licensee is required by technical specifications to perform functional tests, source checks, and calibrations of the effluent and certain process monito~s at set frequencie A selected review o(
records concerning these requirements for the period 1987 and 1988 to date was performe No problems except as discussed in the following paragraph were note The licensee calibrates SPING low range noble gas effluent monitors by collecting and analyzing effluent samples and establishing cpm/µCi/ml calibration factors; linearity checks are also performe Because of improved fuel and reduced plant systems leakage, continuous noble gaseous release concentrations via the D 2/3 chimney and reactor building vents have decreased; the samples collected to perform the calibrations are now of low activity and therefore have relatively large-associated uncertainties; the calibration factors therefore are less exac The licensee stated that they are investigating possible methods of improving these calibrations by using off-gas pretreat samples to perform the calibration No violations or deviations were identifie.
Transportation of Radioactive Materials (IP 86741; 84750)
The inspectors reviewed the licensee 1s transportation of radioattive materials program, incl~dtng: determination whether written implementing procedures are adequate, maintained current, properly approved, and acceptably implemented; determination whether shipments are in compliance with NRC and DOT regulations and the licensee 1s quality assurance program; determination if there were any transportation incidents involving licensee shipments; adequacy of required records, reports, shipment documentation, and notifications; and experience concerning identification and correction of programmatic weaknesse Audits are discussed in Section Records of radioactive materials shipments made during 1988 to date were selectively reviewed for compliance with 49 CFR 173, 10 CFR 61, and 10 CFR 7 Shipments reviewed included solid waste to burial sites, DAW to waste processors and for supercompaction, waste stream samples for
- analysis, protective clothing to a licensed laundry, tools and equipment to other stations/licensees, and radioactive sources to other CECo station No problems were note There were no transportation incidents during 198 No violations or deviations were identifie.
Audits (IP 84750)
The inspectors reviewed the licensee's program for self-identification and correction of programmatic weaknesse The program consists of station quality assurance audits and surveillances, corporate audits, and assessments, and industry assessments; Selectively reviewed were individual audits and assessments, extent of audits and assessments, qualifications of auditors/assessors, and adequacy/timeliness of corrective action This was a program revie The inspectors reviewed preliminary results of recently completed industry and*corporate assessments of the radwaste program, and corporate and station audit finding Several possible improvements were identified during the audits/assessments; none were regulatory violation The licensee's audits/assessment/surveillance program provides good tools for self-identification* of programmatic weaknesse Corrective actions appear adequate and timel No violations or deviations were identifie.
Unit 2/3 SGTS Surveillances (IP 84750; 84724)
Requirements for tests and surveillances of the standby gas treatment system (SGTS) are contained in Technical Specification 3.7.B and Table 4.2.1.- The inspectors reviewed results of licensee's daily check,* monthly functional tests, and calibrations of the refueling floor area monitors; HEPA filter and charcoal efficiency tests; and iodine-131 removal efficiency determination of adsorber sample The inspectors found that the licensee has performed all the required surveillances for the SGTS, and that particulate and iodine removal efficiency meets or exceeds requirement The SGTS moisture removal surveillance procedure requires that both trains be run (one at a time) at about 4000 cfm for not less than ten hours a mont The inspecto~s noted that occasionally during the past year, especially in the hottest summer months, the licensee had difficulty in maintaining B train air flow rate sufficiently constant to perform the tes The systems engineer stated that during this period the B train HEPA had a higher resistance to flow (differential pressure [dp]) than the A train, but was within acceptable tolerance; the licensee was
therefore reluctant to changeout the HEPAs of B trai They did, however, change B train HEPAs in September 1988 and no further probl~ms were observe During the review of the surveillance tests for the refuelin~ fl9or area radiation monitors (which provide a SGTS trip function), surveillance
-*
tests the inspectors noted that the IM foreman had a written surveillance procedure implementing every instrument related technical specification requiremen No violations or deviations were identifie.
NRC Information Notices The inspectors reviewed the licensee's internal responses to selected NRC Information Notice The licensee's evaluations, conclusions, and corrective actions appear appropriate and ~dequate. The following notices were reviewed:
No. 88-22:
Disposal of Sludge from Onsite Sewage Treatment Facilities at Nuclear Power Plant The licensee has found trace quantities of Co-60 in the sludg The sludge is sent to radwaste buria *No. 88-08:
Chemical Reactions with Radioactive Waste Solidificatioh Agent The licensee's procedures require a laboratory-scale test of each solidificatio No problems with chemical reactions have been note No. 87-31:
Blocking, Bracing, and Securing of Radioactive Materials Packages for Transpor In response, the licensee developed and implemented a proc~dure for properly securing packages for transpor No. 87-07:
Quality Control of Onsite Dewatering/Solid.ification Operations by Outside Contractor The contractor's PCP includes quality control requirements for such operation Also, licensee quality control requires appropriate testing/observatio.
Exit Meeting The inspectors met with licensee representatives (denoted in Section 1)
at the conclusion of the inspection on September 30, 1988, to discuss the scope of the inspection and the finding The inspectors also discussed the likely informational content of the inspection report regarding documents and processes reviewed by the inspectors during the inspectio The licensee did not identify any such documents/processes as proprietar The following matters were discussed specifically by the inspectors: Progress made in cleanup of Unit 1 fuel poo The licensee stated that methods for. long term maintenance of the pool are yet to be determined (Section 3). Errors found in the January through June 1988 semiannual repor The licensee stated that an errata correction would be distributed (Section 6).
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