AECM-83-0465, Discusses Comments in Sser 4,Section 22.2,II.B.3,re post- Accident Sampling Capability,Per 830822 Discussion W/F Witt. Forwards Procedures Re Grab Samples & Operation of in-line post-accident Sampling Sys.Analysis Data Encl

Discusses Comments in Sser 4,Section 22.2,II.B.3,re post- Accident Sampling Capability,Per 830822 Discussion W/F Witt. Forwards Procedures Re Grab Samples & Operation of in-line post-accident Sampling Sys.Analysis Data Encl

ML20080E065
Person / Time
Site:	Grand Gulf
Issue date:	08/25/1983
From:	Dale L MISSISSIPPI POWER & LIGHT CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML20080E069	List: AECM-83-0465, Discusses Comments in Sser 4,Section 22.2,II.B.3,re post- Accident Sampling Capability,Per 830822 Discussion W/F Witt. Forwards Procedures Re Grab Samples & Operation of in-line post-accident Sampling Sys.Analysis Data Encl ML20080E079 ML20080E105 ML20080E111 ML20080E116 ML20080E123 ML20080E135 ML20080E139 ML20080E144 ML20080E156
References
TASK-2.B.3, TASK-TM AECM-83-0465, AECM-83-465, TAC-60187, NUDOCS 8308300711
Download: ML20080E065 (3)

Text

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MISSISSIPPI POWER & LIGHT COMPANY

] Helping Build Mississippi P. O. B O X 16 4 0, J A C K S O N. MIS SIS SlP PI 3 9 2 0 5 EdMhMiddB August 25, 1983 NUCLEAR PRooVCTION lEPARTMENT U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Washington, D. C. 20555 l

Attention: Mr. Harold R. Denton, Director

SUBJECT:

Grand Gulf Nuclear Station Units 1 and 2 Docket Nos. 50-416 and 50-417 l 1 06b/60 6 l SSER4 - Post Accident Sampling l AECM-83/0465 1

Suppleaent 4 to the Grand Gulf Nuclear Station Safety Evaluation Report (SSER4), section 22.2, II.B.3, discussed NRC comments with regard to post accident sampling capability. This letter addresses those comments contained in II.B.3.(3), as discussed with your Mr. Frank Witt on August 22, 1983.

MP&L initially developed grab sample procedures which were based on General Electric (GE) procedures. These procedures were the basis for the SSER4 review and the concerns identified in II.B.3.(3). MP&L has since written grab sattple procedures which supercede in their entirety the GE banc.d )

procedures reviewed earlier. 'lhese procedures, copies of which are enclosed, should addrcss the II.B.3.(3) cerr.cnts in SSER4 regarding alternate ans2ytical

• chenistrv procedures. Also enclosed are the procedures which govern operation of the in-line post accident sampling system. We feel that these procedu:ce (both those f or grab sampling and in-line sampling) should satisfy proposed revised License Condition 2.C. (44)(c)(ii) .

The grak sa"ple procedures have been tested (with a standard non-irradiated test solution simulating pcst-accident chemistry conditions),

verified, and are being used as part of the GGNS Post Accident Sampling and Analysis Training Program. The analysis data are enclosed for your review.

Although we stated in AECM-82/339, dated July 30, 1982, that we would provide a report " comparing the performance of the on-line instrumentation vs. grab sample results determined by. analytical procedures" by June 1, 1983, we will not be able to complete this comparison (which is voluntary on our part) before the end of the first refueling outage. Since the grab sample and on-line sample capabilities are equally important aspects of MP&L's comprehen-sive post accident sampling system, the enclosed grab sample procedure verifi-cations should close proposed revised License Condition 2.C.(44)(c)(iii).

Rather than handling a standard test solutica with 10 rad /gran of gamma radiation, MP&L obtained a signed agreement with Dak Ridge National Laboratory (ORNL) for ORNL to receive and perform analyses of samples originating at GGNS O @!

E Member Middle South Utilities System

( &O

= -

AECM-83/0465 MIKITIPPI POWER Q LI2HT COMPANY in the event of GGNS experiencing a 1% or greater fuel failure. The decision to use ORNL for this analysis is conaiatent with NUREG-0737. II.B.3.,

clarification (8), with regard to tle acceptability of "... planning for analysis at offsite facilities ..."J In addition to the samples that would be shipped to ORNL, duplicate samples will be taken for analysis by the GGNS Chemistry Department for comparison of results. When comparable results are acceptable, the GGNS Chemistry Department will perform all analyses of arf subsequent samples. We consider that the verification of our grab sample procedures using a non-irradiated standard test solution, combined with the useofORNL,satisfactorilyadgressestheconcernsexpressedregarding sampling during exposure to 10 rad /graa of gamma radiation.

In light of the above information, MP&L feels we have provided information and documentation adequate to close proposed revised License Conditions 2.C. (44)(c)(ii) and 2.C. (44)(c)(iii), as well as SSER II.B.3. (3) .

If you need additional information, please let us know.

Yours truly, Vtm.

L. . Dale ager of Nuclear Services PBB/JGC:rg Attachments cc: Mr, J. B. Richard (w/a)

Mr. R. B. McGehee (w/o)

Fr, T. B. Conner (w/o)

Mr. G. B. Taylor (w/o)

Mr. Richard C. DeYoung, Director (w/a)

Of fice of Inspection & Enforce =er.t U. S. Nucicar Reguintory Commission Washingren, D. C. 20555 Mr. J. p. O'Reilly, Regional Administrator (w/a)

Office of Inspection and Enforcement U.S. Nuclear Regulatory Conmission Region II 101 Marietta St., N.W., Suite 2900 Atlanta, Georgia 30303

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ATTACHMENT I l

RANGES AND ACCURACIES; POST ACCIDENT SAMPLE l

IN-LAB ANALYSES CONSTITUENT RANGES ACCURACIES GGNS Procedure (s) l Required Attained Required Attained and Comment

.! Gamma Isotopic 08-S-04-200

11) uCi/ml any range Factor of 2 2 Std Dev.

to 10 Ci/ml by dilution Entire Range Entire Range Boron ppm  %  % Error 08-S-04-320 I 0-1000 ppm 0.05-0.5 15 13.46 10 m1 sample /dilu-tion 0.5-5 15 12.59 10 m1 sample /dilu-tion

.5-5 5 13.24 Micro Dish (0.5 ml Vol) 1-10 15 11.67 10 mi sample /

dilution 1.5-10 -+5 ~+3.85 Micro Dish (0.5 ml Vol) 1.5-100 15 13.74 10 m1 sample /

dilution 5-100 15 11.70 10 m1 sample /

dilution 25-1000 15 12.98 10 ml dample/

dilution Chloride ppm ppe  % Error 08-S-04-316

<0.5 ppm 0.02-0.06 10.05 11.84 100 ml dil(Gr.Cntl) 0.5-20 ppo 0.052-0.210 10.05 12.33 100 ml dil(Gr.Cntl) 1.0-10.0 110% 11.75 Micro Dish (Lazar)

f. Micro Dish (Lazar) 1.0-20.0 110% 11.33 pH 1-13 Avg. Units Units 08-S-04-109 5-9 5.42 +0.3 +0.02 Mat. C. ISAA

( 5-9 ~5.59 I0.3 T0.04 Mat. C. IN-LAB Conductivity Avg. 08-S-04-104 2.15 E-3 10.103 E-3 Mat. C ISAA 3.45 E-3 10.0'e5 E-3 Mat. C In-Lab Hydrogen 08-S-04-133 50-2000 cc/kg 193 cc/L 110% 13.58%

50 cc/kg 11 cc/L 110% 16.80%

0xygen 0-20 ppm 209 cc/L 110% 12.14% 08-S-04-133 0-20 ppm 212 cc/L 110% 10.10%

Nitrogen Not Reg'd 788 cc/L Not Req'd 10.48% 08-S-04-133 ,,

10.101%

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