ML19260C038

Discusses Inservice Insp & Testing Program Re Review & Development of Modified Surveillance Requirements.Util Will Provide Development Schedule by 791201 & Proposed Requirements for Each Sys or Subsys as Developed

ML19260C038
Person / Time
Site:	Fort Saint Vrain
Issue date:	11/30/1979
From:	Justin Fuller PUBLIC SERVICE CO. OF COLORADO
To:	Varga S Office of Nuclear Reactor Regulation
References
P-79289, NUDOCS 7912180266
Download: ML19260C038 (6)

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public service company *fP ColleracfIo November 30, 1979 Fort St. Vrain Unit No.1 P-79289

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\ Mr. Steven A. Varga i Acting Assistant Director for J Light Water Reactors f Division of Project Management U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Docket #50-267 i

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Subject:

Fort St. Vrain Inservice f Inspection and Testing Program

References:

1) PSC Letter J.K. Fuller to W.P. Gammill, P-79176, I ~

Dated August 28, 1979 l .

2) NRC Letter, S. A. Varga i to J.K. Fuller, Dated l

October 5,1979 l

Gentlemen:

l In Reference 1 and in previous meetings with the NRC, PSC presented its plan to review the Fort St. Vrain (FSV) inservice inspection and testing program defined in the FSV Technical Specification Surveillance Requirements, to detennine if these requirements should be modified considering plant operating experience or the additional requirements of the Proposed Section XI, Division 2 ASME Boiler and Pressure Vessel Code for commercial size HTGR designs. Review comments concerning this plan were provided by the NRC in Reference 2 and were discussed at a meeting between the NRC and PSC on November 1,1979.

At this meeting, PSC agreed to proceed with development of proposed modifi-cations to the FSV Surveillance requirements and to provide the NRC with a develop-ment schedule by December 1,1979. For purposes of this review effort, PSC has categorized plant systems as shown in enclosure (1) to identify the priority for modification of the surveillance requirements.

PSC is proceeding with the review and development of modified surveillance requirements for those systems or subsystem identified as Category I. Category I includes those topics identified by the NRC and PSC as having priority for early review. As requested by the NRC in Reference 2, PSC will submit proposed require-ments for each system or subsystem as they are developed and will include 1n its submittals reference to the related sections of the proposed ASME code and explana-tions for any differences in the proposed requirements. It is estimated that the 1613 260 7912180

l fir. Steven A. Varga November 30, 1979 Page 2 submittals for Category I systems can be completed by (1 arch 31,1980. There are uncertainties in the review process which make it difficult to estimate completion dates for the remaining categories at this time. PSC will provide the NRC with an estimated completion date for Category II systems when the review process for Category I systems is substantially complete. Similarly, as the review process proceeds, PSC will also be able to better estimate the implementation dates for new inspection or test requirements and will so infona the NRC.

At the meeting previously referred to, other issues associated with the development of review surveillance requirements were highlighted, based on the NRC review comments (e.g., extent of NDE requirements, philosophy, etc.). Al-though some of these issues require further review and discussion to resolve, it was agreed that PSC should proceed with its program as previously outlined and that such resolution would be obtained as the review of specific proposals is accomplished, to which these issues are applicable.

If you should have any further questions concerning the schedule for review-ing FSV inservice inspection and testing, please call us at your convenience.

s Very truly yours, (v &

J.K. Fuller, Vice President Engineering and Planning JKF/FEL:ler Enclosures 1613 261 a

INSERVICE INSPECTION AND TESTING REVIEW PROGRAM CATEGORY I SYSTEMS 0 PRESTRESSED CONCRETE REACTOR VESSEL (PCRV) (11)

PCRV STRUCTURE PCRV LINER PCRV PENETRATIONS PCRV THERMAL BARRIER PCRV INTERNAL STRUCTURE PCRV AUXILIARY SYSTEliS PCRV SAFETY VALVE PIPING PCRV PENETRATION PIFING CORE SUPPORT STRUCTURE VENT PIPING 0 PRIMARY COOLANT SYSTEM (21)

HELIUf1 CIRCULATORS HELIUM SHUT 0FF VALVES .

O SECONDARYCOOLA!.TSYSTEf1(22)

STEAM GENERATORS FEEDWATER/SUPERHEAT PIPING REHEAT PIPING STEAM / WATER DUMP PIPING STARTUP BYPASS PIPING

!613 262 a

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CATEGORY II SYSTEftS 0 CONTROL AND ORIFICE ASSEMCLY (12) 0 HELIUit CIRCULATOR AUXILIARY SYSTEM (21) 0 HELIUM PURIFICATION SYSTEM (23) 0 NITROGEN SYSTEM (25) 0 EMERGENCY FEED AND CONDENSATE SYSTEM (31)

O CIRCULATING WATER MAKEUD SYSTEM (41) 0 SERVICE WATER SYSTEM (42) 0 FIREWATER COOLING SYSTEM (45) 0 PCRVCOOLINGWATERSYSTEM(46) 0 PURIFICATION COOLING STATER SYSTEM (47) 0 REACTOR BUILDING VENT SYSTEM (73) 0 REACTOR BUILDING OVERPRESSURE PROTECTION SYSTEM (73) 0 PLANT PROTECTIVE SYSTEM (93) 0 NUCLEAR INSTRUMENT SYSTEM (93) 0 IN-REACTOR INSTRUMENT SYSTEM (93) 0 STEAM PIPE RUPTURE DETECTION SYSTEM (93) 1613 263

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CATEGORY III SYSTEMS 0 FUEL ;;ANDLING MACHINE (13) 0 FUEL STORAGE FACILITY (14) 0 FUEL STORAGE FACILITY AUXILIARY SYSTEM (14) 0 CONTROLCOMPLEXHVAC(75) 0 FIRE PUMP HOUSE HVAC (75) 0 INSTRUMENT AIR SYSTEM (82) 0 AUXILAIRY BOILER FUEL OIL SYSTEM (84) 0, HYDRAULIC POWER SYSTEM (91) 0 ESSENTIAL ELECTRIC POWER SYSTEM (92) 0 ACM POWER SYSTEM (48) 0 HYDRAULICSNUBBERS(9b) 1613 264 e

CATEGORY IV SYSTEMS 0 FEED AND CONDENSATE SYSTEMS (31, 32, 33) 0 CIRCULATING WATER SYSTEM (41) 0 DECAY HEAT REMOVAL HX (42) 0 FIRE PROTECTION SYSTEM (45) 0 CO2 SYSTEM (51) 0 TURBINE STEAli SYSTEMS (52, 53, 54, 55) 0 RADI0 ACTIVE LIQUID WASTE STORAGE SYSTEM (62) 0 RADI0 ACTIVE GAS WASTE SYSTEM (63) 0 FUEL STORAGE WELL HVAC (73) 0 PCRV ENVIR0tlMENT liONITORING (73) .

O CONTROL COMPLEX ENVIRONf1ENT MONI'TORING (75) 0 AUXILIARY BOILER (84) 0 SEISiiIC INSTRUMENT SYSTEti (89) 0 PRIMARY AND AUXILIARY ELECTRIC POWER SYSTEMS (92) 0 OVERALL PLAllT CONTROL SYSTEM (93) 0 '

PCRV INSTRUllENTS AND DATA ACQUISITI0fi SYSTEM (93) 0 FAST GAS AND IODINE SAMPLING SYSTEM (93) 0 CONTROL R0D AND ORIFICING CONTROL SYSTEM (93) 0 SG T/C AllD S/G INSTRUMEliTATION SYSTEM (93) 0 ANALYTICAL INSTRUMENTATI0tl SYSTEM (93) 0 AREAANDPROCESSRADIATI0hf10NITORINGSYSTEM(11,"22,41,73,93) 0 COOLANT MEASUREMENT DISPLAY SYSTEf1 (93) 1613 265'

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