ML16340D283
| ML16340D283 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 02/12/1982 |
| From: | INSTITUTE OF NUCLEAR POWER OPERATIONS |
| To: | |
| Shared Package | |
| ML16340D282 | List: |
| References | |
| NUDOCS 8304120523 | |
| Download: ML16340D283 (42) | |
Text
STARTUP ASSISTANCE VISIT TO DIABLOCANYON POWER PLANT January 25-30, 1902 INSTITUTE OF NUCLEAR POWER OPERATIONS 8304i20523 830407 PDR ADOCK 05000275 P,
DIABLOCANYON (1982)
Page 1
SUMMARY
The Institute of Nuclear Power Operations (INPO) conducted an assistance visit to Pacific Gas 8 Electric Company's (PGdrE) Diablo Canyon Power Plant during the week of January 25, 1982.
Construction of Diablo Canyon is essentially completed, and fuel loading is anticipated in the near future.
f INPO reviewed site activities to assist in the station's preparation and readiness for operating in a safe and reliable manner.
Areas reviewed included station organization and administration, operations, maintenance, technical support, training and qualifi-cation, radiological protection, and chemistry.
Information was assembled from discus-sions, interviews, observations, and reviews of documentation.
Corporate support and plant construction activities were not included in the scope of the review, except as an incidental part of the team's effort to assist the station in preparing to operate.
As a basis for the assistance visit, INPO used performance.'. objectives and criteria for plants under construction; these were applied in light of the experience of team members, INFO's observations, and good practice~ wi~hin the industry.
INPO's goal is to assist member utilities in achievag e
highest standards of excellence in nuclear plant operation.
Accordingly, the recommendations in each area were based on best practices, rather than minimum a'cceptable standards or require-ments.
Certain beneficial practices and accomplishments were noted:
A positive attitude is evident in plant personnel.
Por a plant under construction, the cleanliness and material conditions are very goods Identification marking of piping, systems, components, and control boards by operations is excellent.
Recommendations were made in a number of areas.
The following are considered to be among the most important:
There appears to be a lack of coordination and control of the various on-site groups.
Overall management action to ensure schedule control and timely resolution of problems is needed.
Design and modification problems indicate the need for improved engineering support.
Additional experience for station personnel in a similar type operating plant is desirable.
Various training activities should be coordinated.
The non-licensed operator training and qualification program needs improvement.
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43 DIABLOCANYON (1982)
Page 2
Specific recommendations are listed under the PERFORMANCE OBJECTIVES to which they
- pertain, and describe conditions that should assist PGRE in meeting the PERFORMANCE OBJECTIVES.
Particularly noteworthy conditions-that contribute to meeting PERFORMANCE OBJECTIVES are identified as Good Practices.
The recom-mendations were presented to Pacific Gas 8r Electric Company management at an exit meeting at the plant on January 30, 1982.
'uring INPO's first regular evaluation of the Diablo Canyon Power Plant, the evaluation team willreview the results of this assistance visit as part of their preparation for the evaluation and as part of their on-site activities.
DIABLOCANYON (1982)
Page 3
ORGANIZATIONAND ADMINISTRATION MISSION, GOALS, AND OBJECIPG?S PERFORMANCE OBJECIPG?:
Station mhsion, goals, and objectives should be estab-lished and progress monitored through a formal prognun.
Recommendation (OA.2-1)
Establish goals and objectives for the station.
A method of tracking and reporting goal achievement should be developed to monitor program success and to improve implementation of personnel accountabili ties.
INDUSTRIALSAFETY PERFORMANCE OBJECFIVE: Station industrial safety programs should achie'
~i h 4 degree of personnel safety.
Recommendation (OA.5-1)
Recommendation (OA.5-2)
Emphasize the importance of obtaining proper clearance prior to performing maintenance work.
Ensure through additional manage-ment checks that personnel are complying with station clearance procedures.
Evaluate the potential safety hazards of relief valve discharge piping location for various equipment throughout the station.
The height of the discharge above the floor and the direction of the discharge flow path of some valves present a safety hazard.
OPERATIONS DIABLOCANYON (1982)
Page 4 OPERATIONS ORGANIZATIONAND ADhHlHSFRATION
,PERFORMANCE OBJECI'IVE: The operations organization and administrative systems should mmIre effective control and implementation of department activities.
Good Practice (OP.1-1)
The following Good Practice was noted:
The Operations Supervisor conducts weekly meetings with his department personnel and invites department managers from other plant departments that interface with operations to attend.
Many important issues are discussed and pertinent startup evolutions/problems are resolved.
These meetings keep Operations Department personnel informed and help improve communications and cooperation between depart-ments.
PLANTSTATUS CONTROLS PERFORMANCE OBJECTIVE: Operational personnel should be cogruzant of the status of plant systems and equipment under their control, and should ensure that systems and equipment are controDed in a manner that supports safe and reliable operation.
Recommendation (OP.3-1)
Consider conducting shift briefings. for all shift personnel prior to shift turnover.
Topics discussed should include, but not be limited to the following:
a.
startup testing activities b.
previous and upcoming shift activities c.
plant status changes d.
other pertinent shift information Recommendation (OP.3-2) e.
departmental activities.
Develop turnover sheets for all shift positions.
Turnover sheets are currently required for the shift foreman, unit operator, and health physics technician positions, but are not required for the senior unit operator and the auxiliary unit operator positions.
Turnover sheets should address items such as the following:
a.
abnormal system lineups b.
liquid and gaseous discharges planned or in progress c.
plant status d.
pertinent plant parameters.
Recommendation (OP.3-3)
DIABLOCANYON (1982)
Page 5
Implement a program for the periodic review of the status of current tagouts.
The program should include periodic performance checks as follows:
a.
applicability or need for outstanding tagouts b.
proper placement and installation of each tag c.
proper position/condition of tagged equipment d.
the absence of unauthorized tags.
Recommendation
<OP.3-4)
Develop comprehensive round sheets for all watch stations.
The sheets should provide guidance for the conduct of the
- watch, logging of required equipment readings, and documentation of shift events.
Minimum and maximum parameters for selected equip-ment should also be included on the round sheets.
Recommendation (OP.3-5)
Develop and implement a policy to control the posting of labels,
- curves, notes, and instructions.
This policy should include a
mechanism to ensure that posted material remains current and reflects approved operating information.
The use of posted infor-mation should be minimized.
Recommendation (OP.3-6)
Implement the use of smaller tags on all control panels.
Tags are large and can obscure labels, indicating lights, and control switch positions.
OPERATIONS PROCEDURES AND DOCUMENTATION PERPORMANCE OBJECTIVE: Operational procedures and documents including those used in the startup program should provide appropriate direction and should be effectively used to support safe operation of the plant.
Recommendation (OP.5-1)
Reduce the total number of emergency operating procedures (BOP) to minimize the number of procedures requi'ring memorization of immediate operator actions.
Consider categorizing some EOPs as abnormal operating procedures.
Recommendation Conduct a review to determine if the data currently required to be (OP.5-2) recorded during the conduct of routine surveillance testing is necessary.
Utilize the Operations Department in the approval path for procedures that are to be used by operations personnel.
DIABLOCANYON (1982)
Page 6
OPERhTIONS FhCIIZI'IES AND EQUIPMENT PERFORMANCE OBJECIPfB: Operational facBities and equipmen5 should effectively s~port plant operation.
Good Practice
'OP.6-1)
The following Good Practice was noted: Yellow dots are placed on electrical equipment relay cabinets directly adjacent to the relay target flags.
During an event where relays have tripped, operators place a check mark on the dot by each target as that relay is reset.
The marks serve as a record of relays that tripped and helps with event review and reconstruction.
Good Prai:..".e (OP.6-2)
Recommendation (OP.6-3)
Recommendation (OP.6-4)
The following Good Practice was noted:
An aggressive program of identifying systems, flow paths, and valves has been undertaken by the operations staff.
The program serves as an efficient training aid for new operating personnel, reduces the probability of oper-ational system line-up errors, and helps identify and isolate prob-lem areas in emergency situations.
Re-evaluate the installed facility paging system.
A coded bell paging system is currently in use and no provision is made for voice announcements throughout the plant.
Conduct a comprehensive review of the security system as it pertains to access of responsible personnel into controlled and vital areas of the facility. A method to replace the two-man rule should be provided.
Key override is available at each entry door;
- however, the keys are not available to operators.
Consider providing a key to assigned shift personnel for override entry into these areas if emergency entry is required.
DIABLOCANYON (1982)
Page 7
HAITIENANCE MAINTENANCEORGANIZATIONAND ADbfINISTRhTION PERFORMANCE OBJECTIVP. The maintenance organization and administrative sys-tems should erasure effective control and implementation of department activities.
Recommendation, Evaluate and adjust the administrative workload of Maintenance
{MA.l-l)
Department and Instrument and Control Department management to reduce non-essential time-consuming work items.
Recommendation C
. 'der sending maintenance foremen and maintenance personnel (MA.1-2) to an operating nuclear power plant of comparable size and type to gain experience in their a."eas of responsibility.
PLANT MATERIALCONDITION PERFORMANCE OBJECTIVE: The material condition of the plant should be main-tained to support safe and reliable plant operation.
Recommendation (MA.2-1)
Recommendation (MA.2-2)
Recommendation (MA.2-3)
Review industry operating and maintenance experience for the installed Stearns Roger fuel transfer equipment.
Some operating plants have experienced problems with systems similar to that installed at Diablo Canyon.
Implement procedures and conduct training to keep general con-struction painters from painting packing glands and pump gland followers. The proper painting of valves and pumps willreduce the need for repetitive maintenance by plant personnel.
Implement more aggressive efforts to identify plant material problems in infrequently trafficked areas and on idle equipment and systems.
WORK CONTROL SYSTEM PERFORMANCE OBJECTIVE: The control of work should ensure that identified maintenance actions are properly completed in a safe, timely, and efficient manner.
Recommendation (MA.3-1)
Consolidate the Nuclear Plant Problem Report {NPPR) and the Maintenance Follower to provide one document that clearly con-trols maintenance work from the time a deficiency is identified until final corrective action is completed.
Ensure that the revised
DIABLOCANYON (1982)
Page 8
document specifies supporting documentation, safety precautions, procedures, and retest requirements.
Eliminate the confusion regarding the use of the Maintenance Follower and the duplication between the Maintenance Follower and the NPPR.
CONDUCT OF MAIM'ENANCE PERFORMANCE OBJECI'IVE: Maintenance should be conducted in a manner that ensures efficient and effective plant operation.
Recommendation Establish measures to control nonconforming materials, parts, and (MA.4-1) components.
The requireme,;x for these controls are outlined in 10CFR50 Appendix B, Criteria XV.
PREVP?NTIVE MAINTENANCE PERFORMANCE OBJET IVE The preventive maintenance programs should contribute to optimum performance and reliabQity of plant equipment.
Recommendation (MA.5-1)
Conduct a review to determine why a number of calibrations and tests remain uncompleted for installed instruments.
As part of the review, look at the frequency of the calibrations, the importance of the instruments to continuous plant operation, and the projected work load of the instrument and control technicians.
MAINTENANCEFhCHZI'IES AND EQUIPMENT PERFORMANCE OBJEVIIVE: FacQities and equipment should effectively support the performance of maintenance activities.
Good Practice (MA.8-1)
The following Good Practice was noted:
Load cells with digital readout capability are installed at each control pendant in the fuel handling building.
Utilization of this equipment, along with ade-quate lifting fixture test procedures, should minimize the possi" bQity of a mishap.
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DIABLOCANYON (1982)
Page 9
TECHNICALSUPPORT TECHNICALSUPPORT ORGhNIZATION AND ADh65tlBTRATION PERFORMANCE OBJECIIVE: The technical support orymization and administrative systems should ensure effective control and implementation of department activities.
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Recommendation (TS.1-1)
Recommendation (TS.1-2)
Ensure that startup engineers with sufficient experience are pro-vided to fQl key positions in the startup organization as soon as practicable.
Provide comprehensive training for engineers involved in the startup program.
Assign specific engineers within the ice,'..'-..i"al support organization to manage responsibilities such as reactor engineering, perform-ance monitoring, modifications, etc.
The concept of placing all technical support engineers in a general "pool" may limit the opportunity for the engineers to obtain expertise in specific tasks or projects.
OPERATING EXPERIENCE REVIEW PROGRAM PERFORMANCE OBJECTIVE: Industrywide and in-house operating experiences should be evaluated and appropriate actions undertaken to improve plant safety and reliability.
Recommendation (TS.3-1)
Improve the effectiveness of the Operating Experience Review Program.
The following areas should be included in those considered:
a.
coordinating responses of the plant staff, On-site Safety Review Group, and the Corporate Safety Review Group by improving the response tracking system b.
expanding the corporate audit program to include a peri-odic program effectiveness evaluation Recommendation (TS.3-2) c.
including NRC letters relating to operating experience in the review process.
Establish methods to provide timely notification to other utilities via NOTEPAD concerning significant events with possible generic implications.
DIABLOCANYON (1982)
Page 10 Recommendation (TS.3-3)
Complete action as applicable on recommendations contained in the INFO.Significant Operating Experience Reports (SOERs).
The SOER recommendation status is as follows:
Number of Recommendations Action Taken 49 32 12 1
S&tisf&ctory Not applicable Pending Needs Further Review The recommendations pending action are:
SOER Number 81-4 81-5 81-6 81-12 81-14 Recommendation Number 2,2a, 2b,3 4
1 1,3 1, 2, 3, 4 PLANT MODIFICATIONS PERFORMANCE OBJECIVfE: Plant modification programs should ensure proper re-view, consul, implementation, and completion of plant design changes in a safe and timely manner.
During startups aH charqpm made as a result of, or after, system or component testing should be controlled under formal modification programs.
Recommendation Improve the existing modification program to ensure that changes (TS.4-1) to the plant are controlled and performed in a timely manner.
For example:
a.
Complete revisions to affected documentation before modified systems are returned to service.
b.
Issue final as-built documentation and update procedures as soon as possible.
c.
Assign review and approval responsibilities for non-critical modifications to on-site technical support depart-ment engineers.
Recommendation Assign responsibility for maintaining the Operations-initiated plant (TS.4-2) piping and instrument drawings to Corporate Engineering in order to properly support plant operations.
DIABLOCANYON (1982)
Page ll REACTOR ENGINEERING PERFORMANCE OBJECTIVE: On-site reactor engineering activities should ensure optimum nuclear reactor operation without compromising design or safety limits.
Recommendation
~ (TS.5-1)
Develop a management program for the plant process computer that includes:
a.
requiring that important software functions/calculations be identified, maintained, updated as appropriate, and routinely, independently checked and verified b.
providing that program software be strictly controlled by establishing procedures to provide program security and integrity c.
providing operations personnel with knowledge of program capabilities and the ability to obtain desired information
(".;-'-= pr mam should meet the operational needs of the coj~:;ol.: om personnel) d.
reviewing the plant process computer output for overall trends in parameters important to nuclear plant perform-ance on a frequent basis by key operations personnel.
PLANT EFFICIENCY AND RELIABILITYMONITORING PERFORMANCE OBJECTIVE: Performance monitoring activities should optimize plant the~mal performance and reliabBity.
Recommendation (TS.6-1)
Provide procedures, instrumentation, and personnel as required during startup testing to collect baseline data for a plant effi-ciency and reliability monitoring program.
DIABLOCANYON (1982)
Page 12 TRAININGAND UALIFICATION TRAININGORGANIZATIONAND ADMINIPI'RATION PERFORMANCE OBJET IVE: The training organization and administrative systems should errsure effective control and implementation of training activities.
Recommendation (TQ.1-1)
Recommendation (Tq.1-2)
Review the staffing and work requirements for the operations, mechanical, and electrical training groups.
Personnel assigned to these groups appear to be working diligently, but many required items such as training aids and handouts have not been completed.
Review the coordination among individual department training groups for the purpose of improving the use of manpower and resources and improving the consistency of qualification format and documentation.
Although weekly training supervisor meetings are held, inerea~ed attention to reducing duplication of effort is needed.
Consideration
. houh be given to consolidating some of the training functions into a een' organization.
NON-LICENSED OPERATOR TRABGNG AND QUALIFICATION PERFORMANCE OBJECTIVE: The nori-licensed operator training and qualification program should develop and improve the knowledge and skills necessary to perform assigned job functions.
Recommendation (Tq.2-1)
Develop a comprehensive non-licensed operator training and quali-fication program.
Although a corporate generic program exists, only a small portion of it is pertinent to Diablo Canyon equipment, and systems.
The plant-specific program should include technical fundamentals, nuclear power plant technology, and plant systems.
Additionally, a system qualification program with explicit perform-ance criteria should be established for all plant systems.
LICENSED OPERATOR TRAININGAND QUALIFICATION PERFORMANCE OBJECTIVE: The licensed operator training and qualification program should develop and improve the knowledge and skiHs necessary to perform assigned job functions.
Recommendation (TQ.3-1)
Review the licensed operator training program lesson plans, train-ing aids, and system descriptions.
Lesson plans should conform to a consistent format. Training aids and system descriptions should be updated to reflect the as-built plant.
DIABLOCANYON (1982)
Page 13 MAINTENANCEPERSONNEL TRAININGAND QUALIFICATION PERFORMANCE OBJECIIVE: The maintenance per.mnnel training and qualification program should develop and improve the knowledge and skiQs necessary to perform assigned job functions.
'ecommendation (Tq.5-1)
Expedite current efforts to develop plant-specific training pro-grams for electrical and mechanical maintenance personnel.
Al-though programs have recently been outlined, unless the current rate of development is improved, it is unlikely that material can be developed and the programs implemented prior to the need for such training.
DIABLOCANYON (1982)
Page 14 RADIOLOGICALPROTECTION RADIOLOGICALPROTECTION ORGANIZATIONANf)ADhGNISTRATION PERFORMANCE OBJECFIVE: The organization and administrative systems should ensure effective control and implementation of the radiological protection program.
Recommendation (RP.1-1)
Develop a policy identifying the actions to be taken for violations of radiological protection procedures as a function of the severity of the violation.
Recommendation (RP.1-2)
Recommendation (RP.1-3)
Recommendation (RP.1-4)
Recommendation (RP.1-5)
Evaluate the adequacy of the size and experience level of the radiological protection and chemistry organization to ensure that startup and future plant operations can be adequately supported.
Consider sending radiological protection and chemistry supervisors, engineers, and foremen to an operating nuclear power plant of comparable size.
Individuals responsible for ra ""'~gi al protection activities should participate in a refueling outag<...
"viduals with chemistry and counting. laboratory responsibilities should perform activities during startup after a refueling outege and during routine operations.
Additionally, consideration should be given to training these individuals in the following:
a.
plant systems b.
appropriate industry operating experiences c.
changes to procedures d.
accident radiological conditions e.
technical areas of their, responsibilities.
Evaluate the number of radiological protection and chemistry forms currently required to ensure that they do not create an excessive administrative burden for the radiological protection staff and plant workers.
Evaluate the approval process for new procedures to see if it can be accelerated.
Most of the radiological protection, chemistry, and radioactive waste procedures are being written or revised.
Many of these have been awaiting approval for several months.
DIABLOCANYON (1982)
Page 15 RADIOLOGICALPROTECTION PERSONNEL QUALIFICATION PERFORMANCE OBJECFIVE: The radiological protection qualification program should ensure that radiological protection personnel have the knowledge and practical abQities necessary to effectively implement radiological protection practices.
Recommendation (RP.2-1)
Review the effectiveness of the radiological protection training, chemistry and radioactive waste training, and retraining for tech-nicians.
The development and implementation of this training is currently divided among the various radiological protection engi-neers.
However, all oi the engineers involved in the training programs have higher priority projects which dominate their time.
Consideration should be given to:
a.
centralizing all the training under a single radiological engineer so that the training program development and implementation is his sole responsibility b.
formalizing these programs to include approved cour..
- content, training
- methods, evaluation standards, a:.'.
methodology.
EXTERNALRADIATIONEXPOSURE PERFORMANCE OBJEVIVfE: External radiation exposure controls should minimize
" personnel radiation exposure.
Recommendation (RP.4-1)
Recommendation (RP.4-2)
Develop and implement a radiation exposure reduction program (ALARA) prior to startup.
This program should incorporate the applicable criteria in INFO performance objective RP.4, External Radiation Exposure.
Evaluate the adequacy of the fixed area radiation monitoring (ARM)system in the following containment areas:
a.
catwalk above the fuel transfer pool b.
reactor coolant drain tank room c.
in the location of each steam generator (low point) d.
on the polar crane.
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DIABLOCANYON (1982)
Page 16
'INTERNALRADIATIONEXPOSURE PERFORMANCE OBJECIXVE: Internal radiation exposure contrC6s should minimize internal exposures.
Recommendation
'RP.5-1)
V Develop a procedure to provide immediate evaluation of whole body counting data by the plant.
Adequate equipment currently exists to accomplish this evaluation; however, procedures or guide-lines for this effort do not exist.
Recommendation (RP.5-2)
R emmendation (RP.5-3>
Recommendation (RP.5-4)
Balance the ventilation system in the auxiliary building and fuel handling buDding to obtain a negative pressure differential.
Develop and implement a quality control program for the whole body counting system.
Include the following:
a.
simulation of periodic, artificially high whole body counts to ensure the reliability of the contractor's system nf reporting significant internal contamination b.
verification of the vendor's calibration results using a
"phantom" or other suitable method.
Provide a reliable Grade D source of air for use with full-face respirators.
Ensure that the air connections for use with full-."~ce respirators utilize a unique fitting.
RADIOACTIVEEFFLUENTS PERFORMANCE OBJECTIVE: Radioactive effluent controls should minimize radio-active materials released to the envirorunent.
Recommendation Evaluate the location of the gaseous radioactive release monitor to (RP.6-1) determine if radioactive particulate plate-out and moisture coQec-tion interfere with measurements.
Recommendation (RP.6-2)
Evaluate the effect of processing rainwater from the resin transfer loading area through the radioactive waste treatment system.
Consider methods to eliminate this practice.
Processing this amount of water may foul the radwaste evaporators and shorten the life of the radwaste demineralizers.
Recommendation (RP.6-3)
Evaluate the reliabili:y of the instaDed process monitoring system.
Industry experience has shown that systems of this vintage have not been reliable at other plants and have required modification or replacement.
DIABLOCANYON (1982)
Page 17 Recommendation (RP.6>>4)
Evaluate the capacity of the sundry drain tanks.
Many other plants have found that larger tanks are necessary to support outage operations.
As part of this evaluation,.consider alternatives to the plant's present laundry system.
SOLID RADIOAVIIVE WASTE PERPORMANCE OBJECTIVE: Solid radioactive waste controls should minimize the volume of radioactive waste and ensure safe transportation of radioactive material.
Recommendation (RP.7-1)
Recommendation (RP.7-2)
Provide additional manpower to support the operation of the radioactive waste system during startup and future operations.
Expedite the development of a comprehensive radioactive waste program to support plant startup and operations.
Elements of this program should include the following:
a.
procedures to minimize the entry of unncessary materials into the radiologically controlled areas b.
a system to segregate contaminated trash from uncon-taminated trash collected in radiologically controlled areas c.
procedures that govern the transfer, packaging, and ship-ment of radioactive waste d.
a training program for individuals involved in solid radio-active waste activities Recommendation (RP.7-3)
Recommendation (RP.7-4)
Recommendation (RP.7-5) e.
procedures for operating the solid waste compactor.
Evaluate the safety and radiological protection problems associ-ated with the location of the auxiliary buQding spent resin dis-charge line.
The location of the spent resin discharge line on the outside of the auxiliary building, 50 feet above the ground, may cause extensive spread of contamination if the transfer hose should break during transfer.
Determine whether the plant's evaporator bottom solidification system can and/or wiD be used.
If the system will not be used, consider removing the system before it becomes contaminated.
Provide more storage area for bags of radioactive trash awaiting compacting.
The planned storage area will not be adequate to handle the trash associated with normal plant and outage condi-tions.
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DIABLOCANYON (1982)
Page 18 PERSONNEL DOSIMETRY PERPORMANCE OBJECIPfE: The personnel dosimetry program ~d ensure that radiation expense+ are accurately determined and recorded.
Recommendation
'RP.8-1)
Recommendation (RP.9-1)
Recommendation (RP.9-2)
Develop a method to control the issuance and return of pocket ionization chambers so that the individual to whom the dosimeter was issued and the period of issue are clearly identified.
Revise plans to treat the entire auxiliary buiMing as contaminated thereby requiring that all persons entering the building wear full protective clothing.
Identify specific areas when contaminated, and require protective clothing and a Special Work Permit (SWP) or Routine Work Permit (RWP) for entry.
Evaluate the overflow path of the refueling water storage tank (RWST) and take appropriate action to prevent the spread of contamination.
The RWST overflow path is currently routed to the yard between the auxiliary building and the radioactive waste building.
There are no provisions to contain any radioactive water overflows from these tanks.
The potential exists for this water to run off outside the radiologically controlled area.
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DIABLOCANYON (1982)
Page 19 CHEMISTRY CHEMISTRY CONTROL PERFORMANCE OBJECTIVE: Chemistry controls should ensure optimum chemistry conditions during all phases of plant operation.
I Recommendation (CY.3-1)
Recommendation (CY.3-2)
Establish a program for the recalibration or replacement of radio-active liquid standards on a regular basis.
The use of old radioactive standards without recalibration is not a good analytical practice even with long-lived isotopes.
Install oifferent, unique fittings on the fill lines of the acid and caustic storage tanks to ensure that acid or caustic is not pumped to the wrong tank.
LABORATORYACTIVE'IES PERFORMANCE OBJECIIVE: Laboratory and counting room activities should ensure accurate mmmuring and reporting of chemistry parameters.
Recommendation (CY.4-1)
Recommendation (CY.4-2)
Evaluate the need to install a drain in the stainless steel drip pan of the Sentry Post Accident Sampling System.
If a leak in the tubing fitting developed, the pan would overflow onto the floor and out into the room.
This could defeat the purpose of the post accident sampling system.
Develop the specific ion electrode method for all chloride analyses using the Graphics Control Chloride probe and the Orion double junction reference electrode.
Presently, different chloride tests must be used for plant systems due to interferences, and 12 mercuric nitrate titrations to analyze one sample.
The specific ion electrode method should eliminate the need for both of the other test methods..
Recommendation (CY.4-3)
Expand the Quality Control program to include the following:
a.
b.
frequent analysis of spiked unknown samples by aD tech-nicians who could be required to perform analysis more frequent analysis of standards in conjunction with sample analysis c.
more vigorous control of reagents and reagent shelf lives d.
trending of QC and analytical data.
DIABLOCANYON (1982)
Page 20 Recommendation (CY.4-4)
Recommendation (CY.4"5)
Evaluate the temperature and power problems in the counting laboratory as to their effect on the MCA-Computer Systems.
Steps should be taken to supply better temperature control and regulated power to the counting laboratory.
Improve the organization and cleanliness of the chemistry labora-tory and implement a program to maintain the above.
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