THE STUDY PROVIDES A DATA BASE WHICH ALLOWS A REALISTIC ASSESSMENT OF THE RADIOLOGICAL IMPACT ON CONSTRUCTION WORKERS OF PROPOSED
MULTI-UNIT NUCLEAR POWER PLANTS. MEASUREMENTS OF PERSONNEL EXPOSURE OF SEVERAL HUNDRED CONSTRUCTION WORKERS WERE CONDUCTED AT
EACH OF THE FOUR SITES WHERE NEW FACILITIES WERE UNDER CONSTRUCTION NEXT TO OPERATING NUCLEAR POWER PLANTS. FOR MOST WORKER
GROUPS, THE AVERAGE DOSE EQUIVALENT RATES WERE MUCH LESS THAN 10 MREM/MONTH GREAER THAN OFF-SIE CONTROLS. CORRELATIONS BETWEEN
GREATER EFFECT ON THE MEASUREMENTS.
OPERATING PLANT POWER LEVELS AND DOSIMETER READINGS WERE GENERALLY POOR INDICATING THAT VARIATIONS IN OTHER RADIATION SOURCES HAD

POWER PLANTS. AS PART OF ITS LICENSING REVIEW PROCESS, THE NRC MUST ASSESS THE ENVIRONMENTAL IMPACT OF THE CONSTRUCTION AND OPERATION OF NUCLEAR ASSESSMENT OF RADIATION DOSES TO CONSTRUCTION WORKERS AT OPERATING NUCLEAR POWER PLANT SITES IS PART OF THIS REVIEW. PROVIDE ROUGH ESTIMATES FOR THE DOSES TO CONSTRUCTION WORKERS. SINCE A FIRM DATA BASE FOR RADIATION DOSES TO CONSTRUCTION WORKERS WAS NOT AVAILABLE. ENVIRONMENTAL IMPACT STATEMENTS COULD ONLY THAT A REASONABLE ENVIRONMENTAL IMPACT STATEMENT CAN BE MADE. THE RESULTS OF THIS STUDY PROVIDE RADIATION EXPOSURE DATA SUCH

OF CONSTRUCTION WORKER DOSES DURING NUCLEAR POWER PLANT CONSTRUCTION. UNTIL THE PUBLICATION OF THIS REPORT, THERE HAS BEEN LITTLE DATA WHICH THE STAFF COULD USE IN ASSESSING THE APPLICANT'S ESTIMATE THE RESULTS OF THIS STUDY SHOW THAT MOST CONSTRUCTION WORKERS AT OPERATING NUCLEAR POWER PLANTS RECEIVED LESS THAN 10 MILLIREMS PER MONTH; AND NO WORKER'S ESTIMATED DOSE EXCEEDED 500 MILLIREMS PER YEAR. THESE RESULTS INDICATE THAT CONSTRUCTION WORKERS AT OPERATING REACTOR SITES ARE NOT LIKELY TO RECEIVE SIGNIFICANT RADIATION DOSES, AND THEREFORE THAT INDIVIDUAL MONITORING WILL NOT BE REQUIRED. HOWEVER, IT MAY BE APPROPRIATE TO GO UNDETECTED. PLACE DOSIMETERS AT POINTS WHERE THE HIGHEST EXPOSURE RATES ARE TO BE EXPECTED, TO ASSURE THAT UNUSUALLY HIGH EXPOSURE RATES DO NOT

THIS RIL TRANSMITS THE RESULTS OF COMPLETED RESEARCH UPDATING AND EXPANDING THE CONCEPT COMPUTER CODE FOR FORECASTING CAPITAL COSTS OF BOILING WATER REACTOR PLANTS. IN 1971 THE ATOMIC ENERGY COMMISSION AUTHORIZED POWER PLANT INVESTMENT COST STUDIES, WHICH CULMINATED IN THE WASH-1230 REPORTS PUBLISHED IN 1972. THEIR PURPOSE WAS TO FACILITATE POLICY AND ECONOMIC DECISIONS ABOUT ELECTRIC GENERATION FACILITIES IN THE PUBLIC AND PRIVATE SECTORS. NATIONAL PRIORITIES ON ENERGY, THE REGULATORY ENVIRONMENT AND THE COST OF LABOR, EQUIPMENT AND MATERIAL HAVE CHANGED SIGNIFICANTLY. THESE CHANGES DICTATED THE NECESSITY OF UPDATING THIS SERIES, AND EXPANDING THE SCOPE TO CONSIDER THE FUEL CYCLE AND THE TOTAL GENERATING COST. AS A RESULT, A PROGRAM TO STUDY, REASSESS AND PRODUCE A NEW SET OF UPDATED REPORTS WAS AUTHORIZED AND UNDERTAKEN.

THE STUDIES IN THESE SERIES HAVE A UNIFORM SET OF ECONOMIC AND TECHNICAL CRITERIA AND A UNIFORM ACCOUNTING SYSTEM. THE INVESTMENT
COST ESTIMATES IN THESE SERIES ARE DEVELOPED FOR REFERENCE PLANTS CONSTRUCTED AT A HYPOTHETICAL SITE. THE ESTIMATED TOTAL BASE
CONSTRUCTION COST FOR THE 1190 MWE BWR REFERENCE DESIGN IS 6582,748,330 OR $490/KW BASED ON JULY 1, 1976 PRICES. THE TOTAL BASE
CONSTRUCTION COST FOR THE BWR POWER PLANT (1061 MWE NET OUTPUT) REFERENCE IN WASH-1230 WAS APPROXIMATELY $213,000,000 OR $201/KH.
BASED UPON PRICES EFFECTIVE JANUARY 1971. THUS, THE 1977 STUDY INDICATES APPROXIMATELY A 143 PERCENT INCREASE IN THE COST OF THE
PLANT IN TERMS OF 6/KW. THE TOTAL DIRECT CRAFT LABOR COST OF APPROXIMATELY $139,500,000 CORRESPONDS TO AN AVERAGE HOURLY RATE OF
$12.29. APPROXIMATELY 11,350,000 CRAFT LABOR MANHOURS AVERAGE ABOUT 9.5 MANHOURS/KW. THESE COMPARE TO AVERAGES OF $8.84/HOUR AND
6.3 MANHOURS/KH RESPECTIVELY FOR THE EARLIER DESIGN REPORTED IN WASH-1230.

THE PRINCIPAL APPLICATION OF THE INVESTMENT COST DATA IS TO UPDATE THE CONCEPT COMPUTER CODE. IN TURN THE CONCEPT CODE IS USED TO
ESTIMATE CAPITAL COST FOR DIFFERENT SIZE PLANTS, DIFFERENT REGIONS OF THE COUNTY, DIFFERENT SCHEDULE LENGTH, DIFFERENT COMPLETION
THINGS AS, COST OF COMPONENTS, QUANTITIES OF MATERIALS USED, TYPE AND QUANTITY OF LABOR, ETC.
DATES, DIFFERENT ESCALATION AND INTEREST RATES. IN ADDITION TO UPDATING CONCEPT THE DATA IS USED AS A GENERAL REFERENCE FOR SUCH

MMM NRR : IMPACT OF RESULTS MM*

DURING FY 1977 44 REQUESTS WERE MADE FOR CONCEPT CODE RUNS AND 32 REQUESTS WERE MADE IN 1978.
SEVERAL SIZES OF COAL PLANTS AND ONE OR TWO NUCLEAR UNITS FOR DIFFERENT ESCALATION AND INTEREST RATES.
MOST REQUESTS INVOLVED RUNS FOR
THE USE OF THE CONCEPT CODE
PERMITTED THE STAFF TO PERFORM THESE ANALYSES MORE EFFICIENTLY AND QUICKLY THAN IF THE CONCEPT CODE HERE NOT AVAILABLE.

*** HRR COMMENTS AND REMARKS ***

RIL TITLE EFFECTIVENESS OF CABLE TRAY COATING MATEIALS & BARRIERS SPONSORING OFFICE(S): SD, NRR

DATA IS PRESENTED ON THE EFFECTIVENESS OF SIX FIRE RETARDANT COATING MATERIALS AND BARRIER DESIGNS IN HORIZONAL OPEN SPACE CONFIGURATIONS THAT ARE IN USE OR BEING CONSIDERED FOR NUCLEAR POWER PLANTS. AN ACCEPTABLE TEST METHODOLOGY WAS DEVELOPED BY WHICH PASSIVE FIRE PROTECTION MEASURES CAN BE EVALUATED. THE TESTS DEVELOPED CAN BE PERFORMED BY SUPPLIERS AND PLANT OPERATORS TO JUSTIFY ALTERNATIVE FIRE RETARDANT COATINGS AND BARRIERS NOT LISTED BY NRC OR TO DEMONSTRATE THE EFFECTIVENESS OF THOSE MEASURES TESTED BY THE NRC IN SITUATIONS WHERE THE DESIGN BASIS FIRE IS SIGNIFICANTLY DIFFERENT THAN THE TEST CASE FIRES.

OFFICE: NRR IMPACT STATEMENI SCHED. RESP. DATE: 06/12/79

ACTUAL RESP. DATE: 11/01/80

USER OFFICE REVIEWER: R. GERGUSON/E. SYLVE

*** NRR : APPLICATION TO THE REGULATORY PROCESS *** THIS LETTER COMPARES THE EFFECTIVENESS OF COATING TRAY COVERS, AND CABLE INSULATION MATERIALS IN PREVENTING FIRE PROPAGATION IN HORIZONTAL CABLE TRAYS. SUCH CONFIGURATIONS ARE PROPOSED BY LICENSEES TO RETARD FIRE PROPAGATION. THE RIL RECOMMENDS QA REQUIREMENTS FOR MINIMUM THREE HOURS OF COATING AND FOR SOLID COVERING OF CABLE BUNDLE, I.E., NO AIR PATHS THROUGH THE BUNDLE.

THE TEST RESULTS HAVE LIMITED APPLICATION IN EVALUATIONS BECAUSE NO VERTICAL CONFIGURATIONS WERE TESTED, CABLES WERE DEENERGIZED, RANDOM FILLED PATTERN WAS USED, TEST CONFIGURATION WAS IN RELATIVELY OPEN AREA, AND EFFECT OF FIRE SIZES ON FIRE PROPAGATION IS NOT KNOWN. THIS PROGRAM DID NOT HAVE SPECIFIC GOALS STATED IN TERMS OF LICENSING CONCERNS.

THE DEVELOPMENT OF A REGULATORY GUIDE ON FIRE STOPS. THE ENGINEERING METHODOLOGY STANDARDS BRANCH WILL USE THE RESULTS TO SUPPORT THE STAFF POSITION IN REGULATORY GUIDE 1.128 AND IN

*** SD

1 IMPACT OF RESULTS ***

(NO DATA AVAILABLE)