IR 05000237/1991020
| ML17174A790 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 07/01/1991 |
| From: | Januska A, Schumacher M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML17174A789 | List: |
| References | |
| 50-237-91-20, 50-249-91-20, NUDOCS 9107120207 | |
| Download: ML17174A790 (9) | |
Text
U.S. NUCLEAR REGULATORY COMMISSION REGION II I Reports No. 50-237/91020(DRSS); 50-249/91020(DRSS)
Docket Nos. 50-237; 50-249 Licensee:
Commonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690 Licenses No. DPR-19; DPR-25 Facility Name:
Dresden Nuclear Power Station, Units 2 and 3 Inspection At:
Dresden Site, Morris, Illinois Inspection Conducted:
June 17-20, 1991 o.J. '~4 A. G..9anuska Inspector:
'iJ!/~w, Approved By:
M. C. Schumacher, Chief Radiological Controls and Chemi_stry Section Inspection Summary Date Date Inspection on June 17-20, 1991 (Report Hos. 50-237/91020(DRSS);
50-249/91020(DRSS))
Areas Inspected: Routine unannounced inspection of the licensee's confirmatory measurements program (IP 84750) including:
audits, quality assurance, quality control, and confirmatory measurements of in-plant radiochemical analyse Results:
The licensee's analytical capability for radiochemistr~ measurements is goo Measures to enhance the laboratory quality control (QC) program have been instituted with more being develope bDR ADOCK 05000237 PDR
- DETAILS Persons Contacted
- L. Gerner, Technical Superintendent
- R. Kociuba, Nuclear Quality Programs Superintendent
- D. Lowenstein, Regulatory Assurance Analyst
- B. Mayer, Nuclear Quality Programs Inspector
- K. Whittum, Lead Chemist
- L. Wolfe, Chemist The inspector also contacted other licensee employee * Denotes those present at the Exit Meeting on June 20, 1991 Licensee Action on Previous Inspection Findings(84750) (Closed) Open Item (237/90015-01; 249/90014-01):
Licensee to add Am-241 to the gamma spectrometry library, and results of split liquid radwaste and offgas crosscheck samples to be examined during a subsequent inspection. The inspector saw documentation stating that Am-241 had been added to the library and saw evidence to confirm this. Also the results of liquid radwaste and offgas crosscheck samples were all in agreement with appropriate criteri (Closed) O~en Item (237/90015-02; 249/90014-02):
Licensee to analyze a split an a spiked sample and send the results to Region III for compariso The results of these analyses are presented in Table 1; the comparison criteria are presented in Attachment Due to poor counting statistics, no comparisons were made for gross alpha, gross beta, Sr-89 and Sr-90 for the radwaste sampl The licensee achieved all agreements for the remaining analyses except for Sr-89 on the spike sampl This will be examined when the results of a sample split during this inspection are received and compared (Section 4) and if warranted, another spike will be sent to the the licensee Changes (IP 84750)
The inspector reviewed management controls, organization, and changes made in the Chemistry Departmen The Department is headed by a Chemistry Supervisor who reports to the Technical Superintenden The Chemistry Supervisor supervises a Lead Chemist, Waste Products, a Quality Chemist, a Chemical Control Coordinator, Procedures Upgrade and two Foreme The Lead Chemist supervises a unit Chemist, an Auxiliary Chemist, a Radiochemist, two lab Chemists, an Engineering Assistant and a Computer Coordinato The Foremen supervise 13 Chemistry Technicians (CTs).
The positions of Chemical Control Coordinator and Computer Coordinator are temporary and the Procedures Upgrade person is a contractor and is also temporar Since the last inspection, Waste Products, and Chemical Control split to become individual entities, the
- Radiochemist transferred out of the Department and was replaced, and one
CT was lost to the Training Department. These changes did not adversely affect the Departmen The Chemistry Department recently obtained a new gamma spectroscopy system which has been install.ed in the counting room and is in the process of being tested prior to being made operationa.
Radiological Confirmatory Measurements {IP 84750)
Five samples {simulated air particulate, charcoal, gas, reactor coolant and liquid waste) were analyzed for gamma emitting isotopes by the licensee and in the Region III Mobile Laboratory on site. Comparisons were made on combinations of available detectors *. Re~ults of the sampl comparisons are given in Table 2; the comparison criteria are ~iven in Attachment 1. The licensee achieved 93 agreements out of 94 comparison Agreements were achieved for charcoal, offgas, and liquid waste sample Two different liquid waste samples*were analyzed as one only contained three nuclide Initially the licensee did not identify Ba-139 on one detector and quantified it incorrectly on another for a reactor coolant sampl Discussion with the licensee indicated that he used an abundan~e different than the inspector's. Examination of the spectral data revealed that the nuclid~was truly present in one case and that the software did not use the entire peak for quantification in the other case. Thelicensee estimated the activity of this nuclide manually and achieved agreement The licensee is in the process of changing to a different gamma spectrometry system {Section 3) and agreed to assure that this nuclide is quantified accurately for the monthly fuel warranty analysis in the.future. A disagreement for failing to identify Zn-65 on an analyses of*a reactor coolant crud sample used to simulate an air particulate sample was note No reason. for the disagreement was foun The licensee will have a portion of the liquid waste sample split analyzed for gross beta, H-3, Sr-89. Sr-90 and Fe-55 and report the results to Region III for comparison with an analysis by the NRC
Reference Laboratory on a split of the same sample. {Open Item 237/91020-01; 249/91020-01)
No violations or deviations were identifie.
Audits (IP 84750)
The inspector reviewed quality assurance audits 12-89-02 and 12-90-14, and approximately 18 Chemistry/Radiochemistry related Field Monitoring Reports (FMRs) completed in 199 The audits were performance based when appropriate. The findings appeared to be goo The inspector discussed audits, FMRs, auditor selection ~nd qualification, and response to findings with a Nuclear Quality Programs audftor. The inspector noted that the Chemistry program auditors were certified for these audits. The auditor stated that audit team leaders and members are selected based on their qualifications for the discipline being audited, and that the NQP auditors who performed these Chemistry FMRs audits had*
Chemistry related backgrounds or experienc The auditor also stated that the Chemistry group was extremely respor.sive to audit findings both
in timeliness and quality of response. The auditor is scheduled to spend two weeks of training in chemistry to observe "behind the scenes
aspects of this group's operation. The program appears. to be effectiv No violations or deviations we~e identifi~.
Quality Assurance/Quality Control of Radiological Measurements (IP 84750)
The inspectors reviewed counting room Quality Control. The licensee performs required QC checks on the counting room instrume*nts, logs the data and hand plots the.results on control charts. The inspector noted that the checks were run as required, that the data appeared reasonable and that supervisory reviews of data were performe Evidence of procedural adherence was noted during the inspection when on several occasions gam~a spectrometers were declared out of service for hav{ng failed the daily QC chec The licensee recently implemented _the use of an operational experience file for each counter and is in the process of developing machine trend plotting of daily result The inspectors also reviewed both the radiochemistry laboratory and count room operations, including physi ca 1 faci 1 iti es. Housekeeping was goo Count room space is ample. *The Chemistry Technicians observed during sample acquisition and preparation used very good laboratory technique The inspectors examined ~he last half of 1990 and the first half of 1991 results of the confirmatory measurements program the licensee participates in with an independent vendo The licensee achieved all agreements for alpha, beta and gamma emitter No violations or deviations were identifie.
Open Items*
Open items are matters which have been discussed with the licensee, which will be reviewed further by the inspectors, and which involve some action on the part of the NRC or licensee, or bot An 6pen item disclosed during the inspection is discussed in Section.
Exit Interview The scope and findings of the inspection were discussed with licensee representatives (Section 1) at the conclusion of the inspection on June 20, 199 Licensee representatives did not identify any documents or processes reviewed during the inspection as proprietar
Attachments:
l. Table l, Radiological Confirmatory Measurements Program Results 2rd Quarter 1990 2. Table 2, Radiological Confirmatory Measurements Program Results 2nd Quarter 1991
3. Attachment 1, Criteria for Comparing Analytical Measurements
- TABLE 1 U.S. NUCLEAR.REGULATORY COMMISSION
REGION III
FACILITY:
DRESDEN FOR THE 2ND QUARTER OF 1991 SAMPLE NUCLIDE NRC VAL. NRC ER LIC.VA LIC.ER RATIO RESOL. RESULT SPLIT H-3 9.03E-04 1.lOE-05 9.23E-04 O.OOE+OO 1.02 8 A SAMPLE FE-55 2.60E-07 3.00E-08 2.00E-07 O.OOE+OO 0.77 A SPIKE H-3 5.84E-05 2.30E-06 6.20E-05 O.OOE+OO 1.06 2 A SR-89 7.82E-05 3. lOE-06 3.46E-05 O.OOE+OO 0.44 2 D SR-90 3.85E-06 1.50E-07 3.94E-06 O.OOE+OO 1. 02 2 A FE-55 4.75E-05 1.90E-06 5.66E-05 O.OOE+OO 1.19 2 A
AGRJ,:::EMENT DISAGREEMENT N = NO COMPARISON
- = CRITERIA RELAXED
- ATTACHMENT 1 CRITERIA FOR COMPARING ANALYTICAL MEASUREMENTS This attachment provides criteria for comparing results of capability tests and verification measurement The criteria are based on an empirical relationship which combines prior experience and the a
REGION III==
FACILITY:
DRESDEN FOR THE 2ND QUARTER OF 1991 SAMPLE NUCLIDE NRC VAL. NRC ER LIC.VA LIC.ER RATIO RESOL. RESULT
GAS KR-85M 1.38E-03 4.16E-05 1.40E-03 1.60E-04 1.01 3 A 28-P2002 KR-87 1.02E-02 2.28E-04 9.00E-03 6.60E-04 0.88 4 A XE-133 4.16E-04 6.86E-05 4.90E-04 5.40E-05 1.18 A XE-135 7.36E-03 7.93E-04 6.70E-03 6.20E-04 0.91 A XE-135M 4.90E-02 1.31E-03 4.lOE-02 6.70E-03 0.84 3 A XE-138 2.54E-01 3.48E-03 2.20E-01 2.70E-02 0.87 7 A RCS NA-24 1.88E-04 5.99E-06 1.60E-04 1.40E-05 0.85 3 A-P4~ MN-54 1.59E-05 3.11E-06 1.20E-05 2.40E-06 0.75 A C0-60 2.76E-04 6.78E-06 2.40E-04 1.50E-05 0.87 4 A AS-76 5.00E-04 1.02E-05 4.40E-04 4.30E-05 0.88 4 A M0-99 9.91E-05 2.27E-05 8.80E-05 1.70E-05 0.89 A I-132 1.52E-04 8.72E-06 1.20E-04 7.00E-06 0.79 1 A I-133 5.72E-05 3.95E-06 4.80E-05 4.90E-06 0.84 1 A I-134 5.64E-04 7.06E-05 5.60E-04 3.50E-05 0.99 A I-135 1.51E-04 1.48E-05 1.30E-04 8.00E-06 0.86 1 A SR-92 2.56E-04 9.17E-06 2.10E-04 3.20E-05 0.82 2 A CS-138 1.58E-04 1.73E-05 1.20E-04 1.80E-05 0.76 A BA-139 4.04E-04 3.5bE-05 3.20E-04 O.OOE+OO 0.79 1 A CHARCOAL I-131 1.09E-11 5.69E-13 1.20E-11 J..20E-12 1.10 1 A I-132 2.00E-11 6.07E-12 1.40E-11 4.50E-12 0.70 N I-133 4.53E-11 1.66E-12 4.50E-11 4.60E-12 0.99 2 A I-135 5.18E-11 6.48E-12 5.lOE-11 5.00E-12 0.98 A CHARCOAL I-131 1.llE-11 6.90E-13 1.lOE-11 1.lOE-12 0.99 1 A I-132 2.59E-11 1.19E-11 2.20E-11 4.40E-12 0.85 N I-133 4.92E-11 1.57E-12 5.30E-11 5. lOE-12 1.08 3 A I-135 6.65E-11 9.82E-12 5.50E-11 4.70E-12 0.83 A L.WASTE C0-60 1.13E-06 1.07E-07 1.30E-06 1.00E-07 1.15 1 A 25-6543 MN-54 2.92E-07 5.BOE-08 2.BOE-07 5.00E-08 0.96 A CS-137 3.24E-07 6.33E-OB 2.20E-07 4. lOE-08 0.68 A
SAMPLE NUCLIDE NRC VAL. NRC ER LIC.VA LIC.ER RATIO RESOL. RESULT L. WASTE C0-60
.28-P2002 CS-137 PRIMARY NA-24 28-P2002 C0-60 AS-76 BA-141 I-132 I *-133 I-134 I-135 SR-91 SR-92 M0-99 CS-138 BA-139 1.04E-06 1.06E-07 2.95E-07 4.92E-08 1.87E-04 6.96E-06 2.94E-04 7.28E-06 4.90E-04 1.08E-05 6.0lE-04 4.48E-05 1.15E-04 6.73E-06 7.22E-05 5.14E-06 5.50E-04 5.25E-05 1.40E-04 1.59E-05 7.85E-05 1.50E-05 2.61E-04 9.20E-06 1.47E-04 3.33E-05 1.60E-04 1.21E-05 4.25E-04 3.45E-05 GAS 26-P45 KR-85M 1.40E-03 KR-87 9.69E-03 KR-88 5.llE-03 XE-133 6.40E-04 XE-135 9.lOE-03 XE-135M 5.78E-02 XE-138 2.38E-01 3.55E-05 2.27E-04 1.38E-04 7.SOE-05 8.00E-05 3.02E-03 8.40E-03 L. WASTE NA-24 25-6543 CR-51 MN-54 C0-60 AS-76 I-131 I--132 I-133 I-135 SR-91 SR-92 CS-137 L. WASTE NA-24 28-P2002 MN-54 C0-60 AS-76 I-132 I-133 I-135 SR-92 CS-137
2.70E-06 3.94E-06 1.87E-05 5.24E-05 2.29E-06 7. 71E--07 2.51E-06 6.17E-06 9.60E-06 1.93E-06 2.61E-06 8.0lE-06 2.58E-06 1.91E-05 5. 18E-05 2.22E-06 2.60E-06 6. lOE-06 8.12E-06 1.52E-06 8.00E-06 2.05E-07 1.59E-06 3.89E-07 5.89E-07 3.59E-07 1.BBE-07 2.96E-07 2.00E-07 7.80E-07 9.66E-07 2.40E-07 3.26E-07 2.08E-07 4.52E-07 7.16E-07 4.26E-07 4.91E-07 2.61E-07 1.06E-06 3.24E-07 3.41E-07 1.30E-06 2.60E-07 1.60E-04 2.40E-04 4.50E-04 5.40E-04 1.20E-04 6.40E-05 5.30E-04 1.40E-04 5.lOE-05 2.lOE-04 1.20E-04 1.20E-04 3.69E-04 1.40E-03 8.BOE-03 5.3QE-03 6.40E-04 8.30E-03 4.80E-02 2.lOE-01 2.30E-06 4.50E-06 1.70E-05 4.70E-05 2.00E-06 5.lOE-07 2.70E-06 5.90E-06 7.90E-06 2.BOE-06 1.90E-06 7.20E-06 2.30E-06 1.70E-05 4.60E-05 2.lOE-06 2.60E-06 6.20E-06 7.70E-06 1.80E-06 7.70E-06 9.00E-08 3. a*oE-08 1. 40E-05 1.40E-05 4.30E-05 9.40E-05*
7.00E-06 6.60E-06 2. 70E-05 8.00E-06 6.20E-06 3.17E-05 1.70E-05 1.lOE-05 O.OOE+OO 9.00E-05 6.30E-04 3.30E-04 6.50E-05 5.00E-04 7.40E-03 2.50E-02 2.40E-07 1.36E-06 1.50E-06 2.80E-06 2.70E-07 1.44E-07 2.40E-07 5.70E-07 5.40E-06 4.50E-07 3.25E-07 6.60E-07 2.30E-07 1.50E-06 2.80E-06 2.60E-07 2.30E-07 6.40E-07 4.80E-07 3.04E-07 6.90E-07 1.25 0.88 0.86 0.82 0.92 0.90 1.04 0.89 0.96 1.00 0.65 0.80 0.82 0.75 0.87 1.00 0.91 1.04 1.00 0.91 0.83 0.88 0.85 1.14 0.91 0.90 0.87 0.66 1.08 0.96 0.82 1.45 0.73 0.90 0.89 0.89 0.89 0.95 1.00 1.02 0.95 1.18 0.96..9 4.4 1.1 1.5.2 2.4 1.3 3.7 3.5 11.1 2.2.1 8.4.5 3.3.9 2.4 4.3.3 23.-4.7 2 A A
A A
A A
A A
A A
A A
A A
A A
A A
A A
A A
A N
A A
A A
A A
A N
A A
A A
A A
A A
A A
A t*
SAMPLE NUCLIDE NRC VAL. NRC ER LIC.VA LIC.ER RATIO RESOL. RESULT
RCS CR-51 4.84E-05 1.,74E-06 4.70E-05 4.70E-06 0.97 2 A CRUD MN-54 1.84E-04 8.59E-07 1.90E-04 1.60E-05 1.03 21 A 25-6543 FE-59 9.91E-05 1.19E-06 1.00E-04 6.00E-06 1.01 8 A C0-58 1.26E-05 3.72E-07 1.20E-05 1.20E-06 0.95 3 A C0-60 6.45E-05 5.75E-07 6.90E-05 4.20E-06 1.07 11 A ZN-65 2.41E-06 5.13E-07 O.OOE+OO O.OOE+OO D AS-76 5.55E-05 1.12E-05 9.lOE-05 1.60E-05 1.64 A HF-181 1.45E-06 2.25E-07 1.70E-06 3.BOE-07 1.17 A NB-95 1.27E-06 2.52E-07 1.70E-06 3.70E-07 1.34 A RU-103 8.54E-07 2.12E-07 1.00E-06 3.00E-07 1.17 A SB-122 6.85E-06 9.95E-07 7.lOE-06 1.31E-06 1.04 A SB-124 3.63E-06 2.95E-07 4.40E-06 4.00E-07 1.21 1 A CE-144 6.62E-06 5.93E-07 7.lOE-06 1.31E-06 1. 07 1 A RCS CR-51 4.84E-05 1.74E-06 5.30E-05 5.lOE-06 1.10 2 A CRUD MN-54 1.84E-04 8.59E-07 2.00E-04 1.70E-05 1.09 21 A 26-P45 FE-59 9.91E-05 1.19E-06 1.lOE-04 7.00E-06 1.11 8 A C0-58 1. 26E-05 3.72E-07 1.40E-05 1.30E-06 1.11 3 A C0-60 6.45E-05 5.75E-07 7.20E-05 4.40E-06 1.12 11 A ZN-65 2.41E-06 5.13E-07 2.20E-06 4.90E-07 0.91 A AS-76 5.55E-05 1.12E-05 8.00E-05 1.15E-05 1.44
- A HF-181 1.45E-06 2.25E-07 1.30E-06 2.70E-07 0.90 A NB-95 1.27E-06 2.52E-07 1.40E-06 3.00E-07 1.10 A RU-103 8.54E-07 2.12E-07 1.lOE-06 2.BOE-07 1.29 A SB-122 6.85E-06 9.95E-07 6.50E-06 9.70E-07 0.95 A SB-124 3.63E-06 2.95E-07 4.60E-06 3.70E-07 1.27 1 A CE-144 6.62E-06 5.93E-07 7.50E-06 1.29E-06 1.13 1 A A = AGREEMENT D = DISAGREEMENT N
NO COMPARISON
= CRITERIA RELAXED