ML20215M596

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Forwards Briefing Sheets Provided by Gregg at 870204 Meeting W/United Nuclear Corp (Unc) Re Cleanup Operations Based on Oak Ridge Associated Univs Results.Unc Will Submit Schedule for Decommissioning Activities.Agenda & Attendees List Encl
ML20215M596
Person / Time
Site: 07000820
Issue date: 02/19/1987
From: Bidinger G
NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To: Crow W
NRC
References
NUDOCS 8705140045
Download: ML20215M596 (14)
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FEB 191987 FCUP:GHB 70-820 Note to W. T. Crow STAFF MEETING WITH UNC, INCORPORATED REPRESENTATIVES I ~

Enclosed are the briefing sheets provided by Mr. Gregg, UNC, at the February 4, 1987, meeting.

NRC attendees were W. T. Crow, G. H. Bidinger, M. Horn, E. Y. Shum, NMSS, J. Roth, Region I, and J. D. Berger, ORAU. UNC attendees are shown on the enclosuref.

Cleanup operations, based on ORAU results presented in the letter dated October 15, 1986, were discussed. UNC will consider further decontamination but did not commit to any action.

UNC will also consider discussions with the States re status of soil decontamination and ground water contamination.

UNC will submit a letter describing further actions and target schedules for completion of their decommissioning activities.

A,Wenvironmental review document will be prepared for public comment when the staff agrees that decommissioning is complete.

_ Original Signed Ry:

George H. Bidinger, FCUP

Enclosure:

As stated DISTRIBUTION: w/ encl:

FCUP r/f Docket No.170-820 NMSS R/F VLTharpe Beveridge/ Cornell 1-23 PDR GHBidinger (2) LPDR Region 1 JRoth MHorn EShum 0705140045 870219

{DR ADOCK 07000820 h_______________________________________________________

NAME:GHBidinger:ht :VLppe  :  :  :  :

0 DATE:02/l'f /87 :02/\ V87  :  :  :  :

0FFICIAL RECORD COPY

1 o o i

AGENDA FOR MEETING UNC RECOVERY SYSTEMS DEC0ftilSS10NING FEBRUARY 4.1987

1. REVIEW OF UNC DECONTAMINATION EFFORTS SINCE 9/6/85 MEETING
2. REVIEW OF SOIL RESURVEY RESULTS I
3. REVIEW OF GROUNDWATER EVALUATION RESULTS 1
4. WASTE SHIPMENT
5. LICENSE TERMINATION D15CUS510N l f ATTENDEES UNC - ROBERT GREGG i KARL HELGE50N

! RONALD MESSENHEIMER 4

JUAN VELASQUEZ NRC LICENSING NRC REGION I ORAU e

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O O i UNC RECOVERY SYSTEMS Soll DECONTAMINATION ACTIVITIES I SINCE SEPTEMBER.1985 l e IN A SEPTEMBER,1985 MEETING BETWEEN UNC AND NRC, THE NRC IDENTIFIED 33 SRID BLOCKS OF CONCERN DUE TO A) RESIDUAL URANIUM LEVELS and/or B) Cs-137 LEVELS /NON-RANDOM DISTRIBUTION OF Cs-137 <

BASED ON VALUES REPORTED IN DRAFT ORAU INTERIM REPORT DATED MARCH,1985 e IN RESPONSE TO NRC CONCERNS, UNC EXCAVATED ADDIT 10NAL QUANTITIES OF S0ll, AS DEFINED IN LETTER, R.J. EREG6 TO W.T. CROW DATED MAY 2,1966. THESE AREAS WERE THEN RESAMPLED AND ANALYZED FOR THE ISOTOPES OF CONCERN.

e BASED ON THE RESULTS OF ANALYSIS, ADDITIONAL EXCAVAT10N WAS PERFORMED ON SOME AREAS. THESE i

AREAS WERE THEN RESAMPLED AND ANALYZED e ON SEPTEMBER 26,1966, ORAU PERFORMED ADDITIONAL RESURVEYS AND S0ll SAMPLING FOR THE NRC. BASED ON THEIR ON-SITE REPORTS, UNC PERFORMED ADDITIONAL i DECONTAMINATION, RESAMPLING, AND ANALYSIS.

1 e RESULTS OF UNC ANALYSES, AS REPORTED VIA LETTER, R.J. GREG6 TO W.T. CROW DATED JANUARY 28,1987,SHOW THAT THE S0ll AT UNC RECOVERY SYSTEMS IS IN FULL COMPLIANCE WITH THE NRC*S SITE SPECIFIC DECONTAMINATION GUIDELINES.

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UNC Bqot B003 B009 801: B019 B023 8026 8032 B029 8035 B042 B049 B058 8067 B081 8095 8109 '

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, B(h2  : D064 0072 D080 B122 8127 8132 B137 B050 B059 B068 8082 BO% B110 f l LAGOON AREA l .

A l D065 1073 0081 8123 B128 B133 B138 B051 B060 8069 B083 8097 B111 E 30 ft. . L.,

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D051 D059 D062 D070 D078 D085 B036 D091 D094 D099 B074 B088 B102 B116  !

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l Attachment to Letter. R.J. Greact to W.T. Crow da&md May 2. 1986 (Cont) i l

1 j UNC RECOVERY SYSTEMS SOIL DECONTAMINATION GRID BIDCK # DESCRIPTION OF ADDITIONAL SOIL REMOVAL l

! D-064 l' of soil removed from strip between the

! D-072 warehouse and macadam area D-066 As above -

i

! D-067 As above '

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! D-068 l' of soil removed from small soil area near j

fence and drain (remainder of block.is

, macadam) '

I D-078 Swept up and removed soil on macadam near i

bottle rack (whole block is macadam)

D-081 Removed soil from macadam near drain (whole block is macadam) l' D-089 Removed 6" of soil from complete area not covered by macadam D-092 Removed 6" of soil from a 10' by 10' square centered on the grid block center i D-094 Removed strip of soil 2' wide by 3' deep around the incinerator pad  !

l D-096 Removed l' soil from a 10' by 10' square i

centered on a spot 4' s and 4' W of the grid i block center t

j B-002 Contamination removed immediately after ORAU

walkover survey-i j B-021 Removed 6" of soil from the complete grid

) block i

B-023 Removed 6" of soil from a 10' by 10' square centered on the grid block centerline

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o o Uf1C Attachm'nt e to Letter. R.J. Greca to W.T. Crew dated May 2.

1986 (Cont)

GRID BLOCK #

DESCRIPTION OF ADDITIONAL SOIL REMOVAL B-027 Removed 6" soil from a 10' by 10' square centered on a spot 9' N and 12' W of the grid block center B-028 Removed 6" of soil from the complete grid block B-037 Removed 6" of soil from a 10' by 10' square centered on a spot 4' N and l' E of the grid block center B-050 Removed 6" of soil from a 10' by 10' square centered on a spot 7' N and 12' E of the grid i

block center B-055 Removed 6" of soil from the complete grid block B-064 As above B-082 Removed 6" of soil from a 10' by 10' square centered block center on a spot 6' S and 7' W of the grid B-083 Removed 6" of soil from the complete grid block B-084 Removed 6" of soil from'the complete grid block B-085 Removed l' of soil from the complete grid block l l

B-126 Removed by macadam.6" of soil from block area not covered Then at a spot l' S and 8' E of the grid block center, removed 4' of soil from a 4 ' by 4 ' square, centered on the above coordinates.

B-130 Removed 6" of soil from a 10' by 10' square centered on the center of the grid block 6

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&ltachment to Letter. R.J. Greaa to W.T. Crew dated May 2. 1986 (Cont) i GRID BIDCK 4 DESCRIPTION OF ADDITIONAL SOIL REMOVAL i,

j B-134 Removed 6" of soil from the complete grid j block B-135 As above B-137 Removed 6" of soil from a 10' by 10' square' i

centered on a spot 6' S and 7' E of the grid block center .

] B-138 Removed 6" of soil from the complete grid i

1 block. Removed 4'lof soil from a spot 10' by 10' square, centered on a spot 18' N on the centerline of the grid block i B-139 i

Removed 4' of soil from a 10' by 10' square centered on a spot 3' N and 4' E of the center of the grid block B-140 Removed 2' ou soil from a 10' by 10' square centered on a s,7t 2' N and 10' W of the center of the grid block.

! B-141 Removed 6" of soil froc a 10' by 10' square i centered on a spot 3' S u.,d 10' E of the grid block center '

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UNC RECOVEOY CYSTEMS SOIL SURVEY RE'SULT 1 2/2/97

) 9/05 INITIAL DECON SURVEY _

RESURVEY U-235 I C7-137 -

BLOCK U-235 U-235 U-230 '? AT10 TZTAL U k -235 U-234 SAT 10 TSTAL U CHANGE O/85 DECON NOTE 9 i 0064 9.1 0.9 21.7 27.13 22.50 -8.3

{

D066 5.0 1.4 30 21.43 31.40 13 27.4 21.08 28.70 -3.7 D067 8.6 0.8 18.6 2325 19.40 -7.8 0068 1.4 0.4 11.1 27.75 11.50 , -1.0 MOSTLY M AC AD AM D078 130 MACADAM D001 1.8 MACADAM j D089 1.8 1.1 28.2 25.64 29.30 -0.7 0092 4.7 0.12 2.9 24.17 3.02 -4.6 j D094 3170 1.4 27.2 19.43 28.60 0.05 ' 33 26.60 1.38 -3170.0 < .05 l D096 198 0.05 0.05 -198.0

+

B002 254 DECONIED AT '85 SURVEY j B021 491 0.05 0.05 ,

-491.0 8023 5.0 0.9 20.9 2322 21.80 -4.1 j B027 B028 1044 17 0.5 0.3 13.4 5.9 26.80 13.90 \ -1043.5 h, !

l 19.67 620 -16.7

) 8037 381 0.3 8.3 27.67 8.60 i

-380.7 i 8050 0.3 7.5 25.00 7.80 '

75.7 B055 2.0 0.7 17.9 25.57 18.60 -1.3

B064 2.7 0.2 5.6 28.00 5.80 -25 B002 44.9 11.7 l 8083 3.54 0.7 16.8 24.00 17.50 ,

-2.8 99.3 11.7 8084 1.82 1.9 44.4 23.37 46.30 0.3 8.5 28.30 8.00 -15 97.3 3.61

, 8085 18.3 0.05 1.13 22.60 1.18 -18.3 110 056 B126-A 5.7 1.0 26.9 26.90 27.90 -4.7

, B126-B 5.7 0.7 21.5 30.71 22.20 -5.0 1 8130 2.7 02 5.1 25.50 5.30 -2.5 B134 1.5 0.8 21.8 27.25 22.60 -0.7 B135 1.3 0.8 21.3 26.63 22.10 -05 8137 1.12 0.9 26.9 29.89 27.80 -02 13.4 8138-A 37.4 0.5 11.7 23.40 1220 -36.9 78 1.12 8138-B 37.4 0.3 7.9 26.33 820 -37.1 78 424 I B139 64 9.6

B140 98.7 3.12 I

1 B141 1.4 0.4 9.8 2450 1020 -1.0 HIN 0.05 0.05 19.43 1.18 0.05 1.33 21.08 1.38 13.40 056 4

M AN. 3170.00 1.90 44.40 30.71 46.30 1.30 27.40 28.33 28.70 110.00 11.70 i AVG. 194.83 0.63 15.52 2522 16.15 055 12.41 25.34 12.% 75.93 5.71 NOTE: BOLD 9/95 U-235 VALUES ARE LOCAL SAMPLES B ASED ON WALKOVER SCAN.

l ALL OTHER 9/85 V AltKS ARE FROM CENTER OF GRD BLOCK SAMPLES

O

, O UNC RECOVERY SYSTEMS GROUNDWATER STATUS e SINCE THE 1970's, UNC HAS BEEN TESTING WATER TAKEN FROM A SERIF.S OF APPROXIMATELY 25 WELLS, TO ASSESS THE EXTENT OF SROUND WATER CONTAMINATION FROM LEAKS IN A WASTE LA600N.

e NITRATE HEASUEREMENTS IN THE PERIOD 1983 THRU 1986, AFTER REMOVAL OF ALL LA600NS, SHOW A REDUCTION FROM ELEVEN TO TWO IN THE NUMBER OF WELLS EXCEEDING THE EPA DRINKING WATER LIMIT OF 10 ppm.  :

e NO MORE THAN TWO WELLS HAVE HAD NITRATE LEVELS IN EXCESS OF 10 ppm SINCE AUGUST,1985.

e AVERAGE NITRATE LEVELS IN THE TWO WELLS HAVE DROPPED AS FOLLOWS DURING THE LAST FOUR YEARS:

1983 1986 j WELL 77-B 350 ppm 314 ppm  !

WELL 76-U 42 ppm 14 ppm '

s ALL WELLS MEET EPA DRINKING WATER LIMITS FOR BROSS ALPHA.

e GROSS BETA RESULTS EQUATE WITH NITRATE RESULTS, WITH WELL 77-B CONTINUING TO SHOW LEVELS OF APPROXIMATELY 100 pCl/L, vs AN EPA DRINKING WATER LIMIT OF 50. l e THE PRIME SOURCE OF GROSS BETA ACTIVITY IS FELT TO BE TECHNETIUN-99, AS ISOTOPIC ANALYSES FOR THE l NORMALLY ENCOUNTERED ISOTOPES Fall TO ACCOUNT FOR l THE NEASURED BETA LEVELS.

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- _ _ - _ _ _ _ - _ _ - _ . _ _ _ . _. _- ,_ ..-....d.

1 NUNDER OF.UNC RECOVERY SYSTEt1S TEST WELLS WITH NITRATE LEVELS EXCEEDING 10 PPM 12

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l I NITRATE LEVELS IN UNC l RECOVERY SYSTEMS TEST

! WELLS 77-B AND 76-U 700-

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g l 600

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WELL 77-B

! 400 -

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{ F AJ A 0 D F A J A 0 D F AJ A 0 D F AJ A 0 D 1983 1984 1985 1986 I i

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i UNC RECOVERY E7 STEMS l WASTE DISP 11SALITATUS l

3 e ALL ORIGINAL DECONTANINATION NATERIALS HAVE BEEN SHIPPED TO DAK RIDGE FOR DISPOSAL.

f i,

i e UNC CONTINUES TO HOLD AN SNN INVENTORY IN EXCESS OF j 350 GRANS U-235, PRINARILY IN EIGHT DRUNS OF j SOLIDIFIED ORGANICS. .

i e AN ADDITIONAL QUANTITY OF APPROXINATELY 2200 DRUNS j OF Soll HAS ACCUNULATED FRON THE POST-1985 DECONTANINATION EFFORTS, AND IS READY FOR SHIPHENT.

2 e THE 0AK RIDGE SITE HAS BEEN CLOSED TO ADDITIONAL

, SHIPMENTS, DUE TO GENERAL ENVIRONMENTAL CONCERNS

)

i NOT UNIQUELY ASSOCIATED WITH THE UNC MATERIALS. THE DOE IS WORKING ON IDENTIFICATION OF AN ALTERNATE l

DISPOSAL SITE FOR THE RENAINING WASTES. UNC PLANS ON SHIPPING THE ADDITIONAL DECONTANINATION I

HATERIALS AS S00N AS PRACTICAL AFTER A DISPOSAL SITE IS NADE AVAILABLE.

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