IR 05000312/1987046

Insp Rept 50-312/87-46 on 871214-18.No Violations Noted. Major Areas Inspected:Emergency Preparedness Program, Followup on Open Items & Insp Procedures 82206 & 92701

ML20196C857
Person / Time
Site:	Rancho Seco
Issue date:	01/26/1988
From:	Block S, Fish R, Prendergast K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
To:
Shared Package
ML20196C846	List: IR 05000312/1987046 ML20196C843
References
50-312-87-46, NUDOCS 8802160260
Download: ML20196C857 (7)

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  'U. S. NUCLEAR REGULATORY COMMISSION
   . REGION V
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.!n Report No. 50-312/87-46 Dacket No. 50-312 License No. DPR-54 Licensee: Sacramento Municipal Utility District 14440 Twin Cities Road Herald, California 95638-9799 Facility Name: Rancho Seco Nuclear Gr e rating Station Inspection- at: Clay Station, California Inspection Conducted: ecember 14-18, 1987 Inspectors: d mheb _i Mi M K' ant M.Prendevbast Da".e s'igned Emergen Prepare ess Analyst _ Vnw } t Ifash? __ Seythou/ Block

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Odte ' Signed Health Physicist Approved by: L /!A W R. Fish, Chief Date signed Emergency Preparedness Section Summary: Inspection on December 14-18, 1987 (Report No. 50-312/87-46) Areas Inspected: Routine unannounced inspection of the Emergency Preparedness Program and follow-up on open items. Inspection _ procedures 82206 and 92701 were covere Results: No violations of NRC requirements were identified. The inspection , disclosed significant improvements in the areas of dose assessment, meteorology and the emergency preparedness training program. The revised emergency plan and related implementing procedures, if implemented and followed, should result in an acceptable level of preparedness to respond to emergencie s 8802160260 880127 gDR ADOCX 05000312 PDR

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Details

Persons Contacted Licensee Personnel i

 *D. Martin, Manager, Environmental Protection
 *J. Gilfor. Supervisor, Plans and Programs
 *F. Thompson, Supervisor, Emergency Preparedness Training
 *M. Hammons, Emergency Preparedness Specialist F. Hauck, Emergency Preparedness Specialist D. Swank, Licensing Contractor Personnel C. Mazzola, Meteorolog J. Torresdahl. Dose Assessment R. Lee, Meteorology    ,
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Indicates those attending exit intervie ' Action on Previous Inspection Findings ,

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(Closed) Open Item 86-01-KP, Improve dose assessment capabilities. This '

item was examined and it was determined that the licensee had significantly improved their dose assessment procedures and training modules for members of the Control Room staff. Technical Support Center, Emergency Operations Facility and completed training in those. modules for appropriate personnel. A hands-on assessment of the licensee capabilities for projecting offsite doses was conducted during this inspection and the results showed significar.t improvement over previous capabilitie This item is closed. The satisfactory demonstration of dose assessment capabilities along with improvements to dose assessment training will also close open item 86-32-06, Inadequate training of dos assessment personne '

(Closed) Open Item 86-14-02, Failure to maintain the Emergency Plan (EP)

and implementing procedures. The licensee has revised their EP. During this inspection discussions were held regarding the latest revition to the EP, dated November 1, 198 The EP appeared to be current with present capabilities and facilities and will be addressed in separate correspondenc The EP implementing procedures (EPIPs) were examined and 1 the following were noted:

(a) The licensee has made significant impro'.ements in their dose assessment procedures. An examination of dose assessment procedures EPIP-5430, EPIP-5440, and EPIP-5450 was performed. The procedures provided adequate guidance for individuals responsible for implementing dose assessment in the Control Room (CR) Technical i

Support Center (TSC), and the Emergency Operations Facility (EOF).

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  (b) The licensee has issued new procedures to address offsite e ,

radiological and environmental monitoring. An examination of EPIP-5350, Offsite Radiological Honitoring, dated November 1, 1987,; and a documented critique of a recent environmental monitoring drill

 ,  held December 16, 1987, was conducted.--Based upon the results of
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  . the drill, as stated in the drill critique, the procedures and
  - equipmer.t appeared adequate for environmental monitoring to be
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  (c) !The: licensee has revised the training procedure EPIP-5600 to require
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standard first aid training for. licensed and non-licensed CR

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operator This will insure that members of the CR staff who may be

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have had first aid training.

J The-licensee appears.to have updated their EP and EPIPs and has established a program to insure their maintenance. This item is closed, i

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  (Closed) Open Item 87-02-01, Improvements to Emergency Plan trainin NRC Inspection Report 50-312/87-02 identified six items related to improving the licensee's emergency prepareoness training program. An
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examination of these items along with an examination of revisions to the training procedures and the Drill and Exercise Manual, which is in draft form and under review at this time, showed that the licensee has incorporated the six improvement items into their training program. This item is considered close (Closed) Open Item EN-87-19, Response to correct deficiencies observed during drills and exercise In response to a violation identified in NRC Inspection Report 50-312/87-19 dated August 26, 1987, the licensee committed to the following action :

  (a) To establish a 24 hours per day nursing coverage to provide first ai .i (b) To revise their Emergency Plan to reflect (a) that the Emergency Team will include a member certified in Standard First Aid, and (b)

that a member certified in Advanced first aid, or the site nurse will be available to provide medical attentio (c) To establish an Emergency Plan Implementing Procedure to address' ' emergency environmental monitoring. Training will be conducted and requisite equipment will be obtaine (d) To demonstrate improved environmental monitoring and first aid > response in a drill to be scheduled at a later date, j

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An examination of the licensee's actions regarding the above commitments  ; was conducted and all actions were noted to have been completeo. In t addition, the licensee has also provided a "comment draft" 1987 drill report, documenting critique items and scheduled corrective action for 1987 drills. This item is close ;

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 (Closed) Open Item 86-02-KP, Provide Emergency Plan'first aid training,
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# :The Emergency Plan and associated implementing procedure require at least one member of the Emergency Team to be qualified in advanced first ai This area was examined and it was determined the licensee has acquire eight nurses to p;' ovide necessary first aid coverage, twenty four hours a day, to meet this requirement. According to a memo dated December 15,.

1987, nursing coverage is expected to be extended until June of 1988 and possibly longer depending upon operator availability for training in-advanced first aid. An examination of training records for the nursing personnel indicated 5 of.the eight nurses had received training in self contained breathing apparatus (SCBAs) and health physics which will allow-them access to the plant, if requested, as a member of the Emergency r Team. The other three nurses, according to the licensee, were scheduled to receive health physics and SCBA training prior to the end of January 1988. This item is considered close (Closed) Open Items 86-14-03 and 87-19-01, Review corrective action on items identified during the licensee's 50.54(t) audits and examine response to the annual 50.54(t) audit to determine the effectiveness of the program to address concerns. An inspection of the Quality Assurance , Department's and the Emergency Preparedness Department's actions with ; regards to the above stated 50.54(t) audit was conducte Based upon discussions with individuals workir ' in Quality Assurance (QA) and Emergency Preparedness, both groups are actively involved in performing I the actions necessary to resolve and ( ose the items of concern identified in the annual emergency preparedness audit. Tracking systems in both departments were examined and both systems were noted to be up to date and showed a major portion of the findings identified in the audit to be closed or appropriately reschedule A sampling of a number of closed items was conducted and their closure was well documented and appropriate. The licensee appears to have established an adequate program to addrest concerns related to emergency preparedness and appears to be working very dili ently G on their resolutio This item is closed.

, Meteorology (0 pen Item 84-11-03) The licensee's meteorological program was inspected to determine the ! present status of the system and the quality of the data from the newly installed temperature sensors. A random sampling of meteorological data for delta temperature was examined from June 6, 1987 to December 15, 1987 and there appeared to be good agreement between the A and B channels of the 10 and 60 meter sensors. The licensee also provided a analysis performed by their meteorological consultant for meteorological data from November 13-29, 1987. An examination of this document indicated 348 hours of the 408 hours were good and shoved close agreement for wind direction, wind speed, and delta temperature. Sirty (60) hours of data - within this period was unavailabl The majority of this unavailable time, according to the licensee, was related to meteorological system maintenance. According to the analysis, utilizing only the valid data, 98 percent of the time the two channels showed close agreement, within 0.4 degrees Fahrenheit. Only 7 hours out of the 348 hours of good data i did the temperature difference exceed 0.4 degrees. The analysis concluded that the stability ceasureinents and magnitude differences between the two channels showed good agreemen It also documented a

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t high level of measurement accuracy attained by the co-location of the A and B temperature sensors in the same aspirator shield. The licensee has also performed the following actions to improve their meteorological capabilitie . The licensee has performed a study of the existing literature on divergence zone meteorology to assess the uncertainty in dose projection results using the existing Class'A straight line Gaussian . mode Based upon this analysis, the licensee has proposed changes to their Emergency Plan implementing procedures to make up for the uncertainty in dose projection utilizing the present class A mode . The licensee has installed a modem data link to Weather Services Incorporated (WSI) to acquire the meteorological data from Sacramento and the surrounding areas to augment their present capabilities to define divergent condition . The licensee has co= 0eted the installation and testing of the motor aspirator failure indication (10 meter) for the Control Roo Documentation examined indicated the installation and testing have been complete . The licensee has revised and issued the following proceduros.to insure that the maintenance and operability of the system are in accordance with their newly acquired Technical Specification N .29 for meteorology, contained in Amendment No. 88 to Rancho Seco's Operating Licens AP.67 Revision'1 Accessing, Processing, Validating, Maintaining 3 and Archiving Meteorological Data SP.408 A and 8 Semi-Yearly Channel B Meteorological Instrumentation Calibration I.016 Meteorological Station Calibration Check RT-SME-002 Semi-Annual Calibration of the Precipitation and Aspirator Fan Failure Meteorological Instruments and Weekiy Meteorological Data and Equipment Checks The above documents have been examined by NRR and were noted to be acceptable and improved over the previous procedures for calibration and maintenance of the meteorological measurements syste Training modules for individuals who will be working with the meteorological measurements system were also examine The modules

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were designed to provide a simplified approach to the concepts of meteorology. They also addressed the purposes for collecting meteorological data, meteorological hardware, software and components of the system, trouble shooting, and basic meteorology ' theories to help with the identification of and possible causes of poor dat This appears to be a good program to insure erroneous i __

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. 5 meteorological data is discovered and steps are taken to identify the cause and repair the proble The licensee appear to have made numerous improvements in their meteorological system and their ability to acquire meteorological d ata'. This item is considered close . Dose' Assessment To determine that the licensee has established an acceptable dose assessment program the followirg areas were examined; source term input, meteorology, computerized dose assessment systems, hand calculation methodologies and assumptions, training, followup on commitmer.ts relating to dose assessment, and the capabilities of the individuals to operate the systems and perform hand calculations to provide dose rates and dose projections utilizing a number of differeret accident scenario The licensee had committed to numerous improvements to the Dose Assessment Program prior to start up in a February 26, 1987 letter (JEW 87-228) to the Director of NRR. Action on these commitments were examined and, with the exception of items 5, 6, and 11 of Attachment B to the above stated letter, the actions have been completed. The licensee has requested and the NRC has agreed to a change in numoer five of the above stated letter to allow enhanced meteorological capabilities (WSI)

dnd expanded protective actions zones to replace the commitment for ordering of a class B model. The enhanced meteorological capabilities and expanded protective actions provide a conservative methodology to account for the uncertainties of the present Class A model and also meet the regulatory requirement The licensee has examined the existing literature on meteorology to assess the divergence zone uncertainty in dose projection results using the existing Class A model. Based upon the results of thil, examination, the licensee described their methodology to account for this uncertainty in a letter to NRR dated December 8, 1987. The licensee intends to integrate its newly implemented Weather Services Incorporated (WSI) modem data link into its dose pro.isction procedures to acquire the meteorological data from Sacramento and surrounding area. This data would be used with the Rancho Seco data to identify the divergence zon Once the divergence zone has been identified, the "downwind" sector will be replaced by a "divergence zone sector" bounded on one sice by the Sacramento wind direction and the other side by the Rancho Seco wind direction. The area for protective actions will then be expanded to include the sectors "downwind" of the divergence zone sector and its two adjoining 22.5 degrees sectors. The above stated methodology, regarding defining the divergence zone, is intended to be included in the dose assessment procedures for the TSC and EOF. The licensee said that copies of these changes will be provided to Region V when they have been completed. Actions on items 6 and 11 of Attachment B were discussed with dose assessment personnel and verification and validation of the iodine fractions for various accident scenarios still needs to be completed along with a formal approval of the backup dose assessment progra . _ - _ - . _ - . . ._ _ _ __ . _ _ _ _ _ . _ _ _ _ _ _ _ _ _ a ,, w r l

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  ., An examination of the licensee's dose assessment procedures was performed    j
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 . calculations and computerized dose prcjection. The procedures,     '

EPIP-5430, EPIP-5440, and EPIP-5450 appeared adequate and were noted to

<   provide' instruction and methodology for SMUD personnel to accomplish both
 . dose rates and dose projections in a timely manner. However, one problem'    ,
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was observed in the demonstration of the CR hand calculation for determining thyroid dose. The hand calculation was noted to be an order of magnitude too low compared to the computerized derived values for the -

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same' scenario. The hand calculations use tabulated values in an equation

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,   dedicated to this method of dose projection. One of the tables was
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discovered to be incorrec The tables are presently being revised so j

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that thyroid dose estimates derived from the hand calculations will be in ,

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   . closer agreement with the computerized dose estir,ate , ,

lesson guides for dose assessment training for the CR, TSC, and EOF wers

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also examined and they appeared adequate. The lesson guides were noted-to contain the capabilities and limitations of the 4 basic methods for * performing dose projection available at SMUD, Interim Data Acquicition-Display System (IDADS), Meteorological Information Display Acquisition * System (MIDAS) Fast Calc, and hand calculations. The lesson guides were also noted to address the principles of dose assessment, protective action recommendations and were to be accompanied by a hands on demonstration and a test, as a method to evaluate the effectiveness of the trainin Records of training for dose assessment personnel were also examined and, with a few exceptions that were corrected prior to the end of this inspection, showed training had been conducte . During this inspection numerous scenarios were presented to individuals  : who would be performing dose assessment in the CR, TSC, and the EO Based upon the licensee's capabilities, which were demonstrated during this portion of the inspection, it appears that the licensee has established an adequate dose assestment progra Exit Interview - An exit interview to discuss the preliminary NRC findings was held on December 18, 1987. Licensee personnel present at this meeting are identified in. paragraph 1 of this repor The licensee was informed there were no violations identified within the scope of this inspectio The findings described in Sections 2-5 were summarized for the licensee ' during this intervie !

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