ML20207N627
| ML20207N627 | |
| Person / Time | |
|---|---|
| Site: | Wood River Junction |
| Issue date: | 12/09/1986 |
| From: | Berger J OAK RIDGE ASSOCIATED UNIVERSITIES |
| To: | Horne M NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| 27683, NUDOCS 8701140324 | |
| Download: ML20207N627 (12) | |
Text
76-s e RETURN.TO. 396-SS M 4PM[
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Oak Ridge Manpower Education, Associated Post Office Box 117 Research, and Training Universities Oak Ridge, Tennessee 37831-0117 Division December 9, 1986
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7(> RECBVED NN Ms. Merri Horne i
M DEC 151986 )C Division of Fuel Cycle & Material Safety 9
U.S. NUCLEAR REGULATORY Nuclear Regulatory Commission Commog I
NMSS-SS396 g Mdk E
Washington, DC 20555 N
Dear Ms. Horne:
Enclosed, per our discussion several weeks ago, are tables summarizing the contamination surveys of building interior surfaces, at UNC's Wood River Junction Plant. Table A presents the results of the initial surveys, indicating the number of grid blocks which exceeded the release guidelines. Each of these blocks is addressed individually la Table B, w1Lh the flual survey or other resolution of the residual contamination indicated. As I stated in our discussion, it is my opinion that the building surfaces now satisfy the NRC guidelines for release from licensing restrictions.
Questions may be referred to me at FTS 626-3305.
Sincerely, James D. Berger, Manager Radiological Site Assessment Program JDB: cit
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J. Roth, NRC Region I p
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SUMMARY
OF INITIAL BUILDING CONTAMINATION MEASUREMENTS 2
BUILDING TOTAL CONTAMINATI0tJ (dpm/100cm )
REMOVABLE CONTAMINATION NUMBER OF 2
AND/OR SURFACE BLOCKS ALPHA BETA-GAMMA (dpm/100 cm 1 BLOCKS b
D AREA SURVEYED Ave.a Max gy,,a Mex Alpha Beta EXCEEDI NG Range Range Range Range Range Range GUIDELINES
. Main Building 1
Main Process Area isoor 208 190 - 15400 210 - 145000 520 - 10300 910 - 59600
<3 - 270
<5-40 8
Wa 4. -
311 67 - 77000 127 - 267000
<490 - 24500
<490 - 104000
<3 - 320
<5-65 49 C" i i n g OC f
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Column Tower P..
50 530 - 4380 700 -
6850 840 - 2040 1370 -
6920
<3 -
17
<5-12 0
1st Floor Walls 98 96 - 9960 170 - 47100
<490 - 8400 1060 - 25400
<3 - 1490
<5 - 280 4
Celling 6
72 -
670 170 -
1600 1000 - 1190 1750 -
2280
<3 -
24
<5 -
8 0
Column Tower Floce 30 37 -
330 64 -
1740 890 - 5540 1520 - 23800
<3 -
13
<5-12 1
2nd Floor Wells 77 240 - 10600 340 - 14500
<490 - 3950 760 -
88 20
<3 -
17
<5 - 12 3
Celling 5
230 -
290 300 -
400 910 - 1180 1750 -
2360
<3 -
16
<5 0
Column Tower Floor 38 540 - 8810 570 - 34900 640 - 4480 1290 - 20200
<3 -
43
<5-33 4
3rd Floor Walls
'73 120 - 2830 150 - 18600
<490 - 4200 910 -
5460
<3 -
13
<5-11 1
Celling 48
<37 - 29100 85 - 52300
<490 - 11500 760 - 20900
<3 -
31
<5 - 11 9
Receiving Area Floor 22 200 - 1080 320 -
2880
<490 - 1550
<490 -
2960
<3
<5 -
9 0
Walls 35
<37 - 2640 110 - 25700
<490 - 1070
<490 -
7860
<3 -
83
<5-31 1
Celling 10 87 -
200 170 - 12100
<490
<490 -
2640
<3 - 140
<5 - 36 0
Foremans Office Floor 9
<37 - 3840 85 -
8900 610 - 1660 1220 -
3340
<3 -
20
<5 -
9 0
Walls 2
62 -
77
.150 -
190 680 -
730 1140 -
1140
<3
<5 0
Celling 1
920 3900 760 2050 16 -
20
<5-10 0
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TABLE A (Continued)
SUMMARY
OF INITI AL BUILDING CONTAMINATION MEASUREMENTS 2
BUILDING TOTAL CONTAMINATION (dpm/100cm )
REMOVABLE CONTAMINATION NUMBER OF 2
AND/OR SURFACE BLOCKS ALPHA BETA-GAM A (dpm/100 cm )
BLOCKS b
D AREA SURVEYED Ave.a Max gy,,a Mex Alpha Beta.
EXCEEDING Range Range Range Range Range Range GUIDELINES Pickle Liquor Room Floor 68 250 - 3970 300 - 150000 640 - 2620 1520 - 24300
<3 -
39
<5-15 2
Walls 69 100 - 5260 21 0 - 32100
<490 - 1510 680 - 10000
<3 -
70
<5 - 38 5
C l
Celling O
Chemistry Lab Floor 23 270 - 3810 400 - 310000 680 - 1540 1060 - 72800
<3 - 150
<5-44 2
Wells 37
<37 - 1730 110 -
6870
<490 - 1010 610 -
3340
<3
<5 0
i Celling 6
150 150 -
280
<490
<490
<3
<5 0
1 Utility Room Floor 34 260 - 5630 340 -
9820
<490 - 2150 990 -
5930
<3 - 340
<5 - 73 3
Wells 25 320 - 4370 380 -
7250
<490 - 2320 1060 -
4940
<3 - 180
<5 - 48 0
Celling 17
<37 - 2910 64 -
6470
<490 -
980
<490 -
2340
<3 - 370
<5 - 59 0
and Mez-zannine Maintenance Room Floor 9
420 - 4100 720 - 13900 780 - 2390 1370 -
8740
<3 - 170
<5 - 32 0
Walis 28
<37 -
490
<37 -
4300
<490 -
910
<490 -
2050
<3 -
71
<5 - 17 0
Celling 7
<37 -
74 130 - 11000
<490
<490 -
2220
<3 - 150
<5 - 27 0
HVAC Area Floor 62 1330 - 6930 1890 - 15400 1090 - 3420 1670 -
6920
<3 - 230
<5 - 58 19 Walls 9
140 -
680 320 -
3540
<490 - 1000
<490 -
2510
<3 - 65
<5 - 19 0
d Celling O
l Change Room Floor 26 140 - 2170 250 -
6300
<490 - 1840 760 -
4030
<3 -
21
<5 - 15 0
1 Walls 19 37 - 1080 150 -
2540
<490 - 2270 610 -
5930
<3 -
13
<5-10 0
Celling 7
58 -
200 150 -
490
<490 -
710
<490 -
1980
<3 -
13
<5 0
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i t
TABLE A (Continued)
SUMMARY
OF INITI AL BUILDING (X)NTAMINATION MEASUREMENTS 2
BUILDING TOTAL CONTAMINATION (dpm/100cm )
REMOVABLE CONTAMINATION NUMBER OF 2
i AND/OR SURFACE BLOCKS ALPHA BETA-GAMMA (dpm/100 cm 1 BLOCKS AREA SURVEYED Ave.a MaxD Ave.a MexD Alpha Beta EXCEEDING Range Range Range Range Range Range GUIDELINES i
Offices and Lunch Floor 38'
<37 -
150
<490 -
1060
<3 -
39
<5 - 15 0
1 Room Wells 918
<37 -
230
<490 760
<3
<5 0
and Colling Lagoon Peocess Bldg.
Floor 46 130 - 1300 250 -
2100
<490 - 3200
<490 - 10000
<3 -
63
<5-49 0
i
- Walls, 33 100 -
320 150 -
640
<490
<490 -
1060
<3 -
41
<5 - 14 0
l and j
Colling Pits 17
<37 -
490 130 -
910
<490 -
950 990 -
2050
<3 -
11
<5-11 0
l Warehouse Bldg.
I Storage Area Floor 144 82 - 15000 170 - 82200 6 20 - 81 20 1060 - 52700
<3 - 218
<5 - 111 24 j
Walls 46
<37 -
500
<37 -
680
<490
<490 -
1600
<3 -
31
<5 - 11 0
i Colling 7
67 -
116 106 -
2650
<490
<490 -
840
<3 - 210
<5-42 0
4 Receiving Area Floor 22 140 - 6960 210 - 16500
<490 - 3320
<490 -
6160
<3 -
63
<5 - 16 I
4 l
Walls 27
<37 -
470
<37 -
1140
<490
<490 -
912
<3 -
14
<5 - 12 O
Colling 5
57 -
470 170 -
1170
<490
<490 -
1520
<3 -
41
<5 - 12 0
1 l
Offices and Guard Floor 2
64 -
72 130
<490
<490
<3
<5 0
Post Wells 1
<37
<490
<3
<5 0
5 and j
Colling l
i J
TABLE A (Continued)
SUMMARY
OF INITI AL BUILDING CONTMINATION MEASUREMENTS 2
BUILDING TOTAL CONTAMINATION (dpm/100cm 1 REMOVABLE CONTMINATION NUMBER OF 2
AND/OR SURFACE BLOCKS ALPHA BETA-GMe4A (dpm/100 cm )
BLOCKS' AREA SURVEYED Ave.a Maxb Ave.a Maxb Alpha Beta EXCEEDING Range Range Range Range Range Range GUIDELINES N-Gas Building Floor 6
590 - 11600 1200 - 51500 1330 - 2620 2360 - 16400
<3 -
23
<5 - 10 1
Walls 13 42 -
380 85 -
660 540 - 1120 990
. 2200
<3 -
45
<5 - 10 0
and Celling l
Emergency Generator Floor 3
820 -
920 1020 -
1210 1400 - 1840 2130 -
2810
<3
<5 0
Building Walls 4
170 -
190 170 -
300
<490 - 1000
<490 -
1220
<3
<5 0
and Celling Counting Trailer Floor 15'
<37 -
85
<490
<3
<5 0
Walls 12e
<37 -
110
<490
<3
<5-10 0
and Ceiling 8
Health Physics Floor 5
<37 -
530
<490 -
840
<3
<5 0
Offices Walls 178
<37 -
6530
<490 -
3880
<3
<5 0
and Celling Trailer T-2 Floor 12
<37 -
74
<37 -
130
<490
<490 -
1060
<3
<5 - 10 0
Walls 10e
<37 -
64
<490
<3 -
33
<5 - 180 0
and Celling
TABLE A (Continued)
SUMMARY
OF INITI AL BUILDING (X)NTAMINATION MEASUREMENTS 2
BUILDING TOTAL CONTAMINATION (dpm/100cm )
REMOVABLE CONTAMINATION NLMBER OF AND/OR SURFACE BLOCKS ALPHA BETA-GAMMA (dpm/100 cmi BLOCKS b
AREA SURVEYED Ave.a Max gy,,a MaxD Alpha Beta' EXCEEDING Range Range Range Range Range Range GUIDELINES TraIIer T-4 Floor 24e
<37 -
380
<490 -
1060
<3 -
16
<5 - 10 0
Walls 6'
<37 -
300
<490
<3
<5-9 0
and Celling a
Average of 5 systematic measurements performed within each grid block surveyed.
b Maximum Individual measurement obtained within each grid block surveyed.
c Celling repainted after grit blasting and survey by NRC Region 1 d
Celling and mezzanine measurements included with those for Utility Room, e
Individual measurements performed rather than grid block surveys, f
Dashes Indicate measurements not performed or not appropriate.
a TABLE B RESURVEY OF AREAS EXCEEDING SURFACE WNTAMINATION GUIDELINES TOTAL CONTAMINATION LEVELS (dpm/100 cm i BUILDING GRID ELOCK INITIAL SURVEY FINAL SURVEY REMARKS AND/OR DESIGNATION AVERAGE MAXIMtM AVERAGE MAXIMUM Alpha Beta-Gamma Alpha Bota-Gemma Alpha Beta-Gamma Alpha l Beta-Om Main Process Bldg.
Main Process Area Floor A-1679 860 1190 23000 10600 570 1050 810 1600 A-1711 1770 1510 145000 2700 1230 1730 1800 1980 A-1795 6030 3430 17900 12900 1940 2050 3330 2740 A-1804 1220 1210 28400 12100 1060 1670 1270 2510 A-1910 2340 2290 26200 27600 660 1260 1270 1600 A-1911 3900 2100 20500 9900 360 1140 450 1750 A-2131 15400 10300 63500 5%00 1930 1140 6550 1750 A-2136 560 900 57300 45800 680 1520 760 1670 Walls A-47 20400 6410 110000 54200 Wall Section Removed A-59 25800 8900 59100 35300 1440 4930 4260 A-60 7330 5066 18800 22040 Wall Section Removed A-63 5680 3730 13300 13500 A-77 31o0 2980 10200 7680 A-78 18600 6476 47500
'.4000 A-79 8580 3600 11700 10900 A-80 8230 5900 19900 18200 A-92 a
25900 10200 2310 1440 A-94 11900 27000 Wall Section Removed A-95 44400 20500 75300 48600 A-21100 7480 44600 13100 A-98 5290 2600 8310 5020 A-100 7560 2830 17800 10300 A-231 110 1030 38500 5580 210 1190 580 1690 A-231A 42200 Wall Section Removed
TABLE B (Continued)
RESURVEY OF AREAS EXCEEDING SURFACE CONTAMINATION GUIDELINES TOTAL CONTAMINATION LEVELS (dpm/100 cui BUILDING GRID BLOCK INITIAL SURVEY FINAL SURVEY REMARKS AND/OR DESIGNATION AVERAGE MAXIMIM AVERAGE MAXIMUM Alpha Beta-Gamma Alpha Beta-Gamma Alpha Beta-Gamma Alpha Beta h a i
A-1462 5990 3560 11200 10300 3032 2940 6170 6900 j
A-1470 9220 5290 21900 17200 150 1340 2680 2570 A-1470A 5130
'2o20 9240 6990 2180 2570 3050 4100-A-1471 20800 11700 75300 66600 240 1230 2710 6430 A-1471 A 11100 7320 21500 24200 1830 1102 4540 1600 A-1474 5080 2320 15800 8360 3960 12000 Column Tower i
1st Floor j
Walls C-421 9960 8400 13100 21900 550 1150 890 1250 C-451 5730 2970 6720 5620 Wall Section Removed-C-488 4840 5700 47100 25400 420 1020 640 1640 C-493 9130 4060 20100 10400 1240 970 2690 1180 l
4 Column Tower 2nd Floor Floor C-50 140 5540 590 23800 510 2110 1210 3650 i
Wa1Is C-359 5260 1730 10900 4790 WaI1 Section Removed C-365 10600 3950 14500 6%0 a
a C-371 7940 3300 8540 4330 a
a Column Tower 3rd Floor Floor C-5 3480 1750 6%0 20200 2290 1810 3390 2230 C-6 1080 1500 17600 9540 140 2740 180 4710 C-7 1010 1370 34900 12700 90 2020 160 3040 C-34 8810 2510 26800 9580 60 2690 130 7600 l
l 1
m _
l a
4,
,s' TABLE B.(Continued)
RESURVEY OF MtEAS EXCEEDING SURFACE CONTMINATION GUIDELINES TOTAL CONTMINATION LEVELS (dom /100 coh BUILDING GRID BLOCK INITIAL SURVEY FINAL SURVEY REMARKS AND/OR DESIGNATION AVERAGE MAXIMLM AVERAGE MAXIMLM Alpha Beta-Gemma Alpha Beta r -
Alpha Beta-Gamma Alpha Beta-Gemma Walls C-227 2830 3200 18600 5640 90 790 150 1140 Colling CC-4 4190 1550 23800 4040 2630 2830 6880 4540 CC-5 7600 3730 15400 5640 1430 1610 3970 3880 CC-6 29100 11500 52300 20900 2003 2220 4350 3480 CC-7 26400 10900 27900 18500 1870 1880 5390 3810 CC-8 17500 6380 27200 14100 390 1190 530 2360 CC-14 12800 3600 23000 7750 2050 1360 10100 10600 CC-15 9950 4250 23300 11900 2800 2140 10700 7880 CC-16 7240 2030 24800 7140 290 1120 350 1840 CC-22 7730 2860 21500 11600 350 1550 3900 3150-Well Section Removed Receiving Area Wells RA-225
<37
<490 25700 7860 Pickle Liquor Room Floor B-204 1800 1480 18200 24300 280 1500 550 2170 B-230 850 1380 150000 7520 380 1500 3040 4060 Walls B-95 750 890 26300 2160 280 1380 560 2580 B-143 230 900 32100 6%0 310 760.
600 1290 B-146 5260 1480 12100 9000 Well Section Removed B-147 3650 1390 18500 7140 B-148 2300 920 28800 10000 Chemistry Lab Floor L-28 730 740 20000 11300 150 910 310 1220 L-50 1200 840 310000 72800 200 1300 440 2300
.m
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i TABLE B (Continued) t RESURVEY OF AREAS EXCEEDING SURFACE CONTAMINATION GUIDELINES TOTAL CONTAMINATION LEVELS (dpm/100 cmh BUILDING GRID BLOCK INITIAL SURVEY FINAL SURVEY REMARKS
}
AND/OR DESIGNATION AVERAGE MAXIMUM AVERAGE MAXIMUM Alpha Beta-Gamma Alpha Beta-Gamma Alpha Beta-Gamma Alpha Beta-Gamma a
I Utility Room 1
Floor UR-100 6160 2150 9820 5930 1960 1580 2840 2504 -
j UR-til 5490 1610 6210 2510 1360 1620 2380 2570 UR-120 5630 1850 6740 3880 1130 1390 1890 1830 4
HVAC Area j
Floor H-8 5800 2810 7310 4100 2350 1910 3030 2230 i
H-18 5150 2340 6320 3650 1960 2860 2840 8540 H-19 5290 ~
2350 5700 3650 2230 2010 2960 2630 H-23 5240 2120 8260 3800 2270 2210 3630 2890 H-34 6140 1510 6860 4100 1940 1430 2570
-1900 j
H-35 6520 2530 7230 4330 2650 1900 3200 2960 l
H-36 6160 1900 6300 3800 3000 1960 4200 2430 j
H-44 56 20 2660 6810 4330 2080 1670 2370 2500 H-53 5300 2720 5470-4560 1860 2050 2260 3860 i
H-54 5910 1540 8220 2660 2820 1680 4290 2230 H-62 5560 2660 6910 4100 2340 1690 3160 2300 l
H-66 6930 34 20 15400 6920 160 1190 360 1370 1
H-68 5700 2680 6780 4180
. 2030 1750 3840 2430 l.
H-71 5700 1790 7000 2740 2490 2570 3250 4400 -
l H-73 5590 2680 8060 4480 2350 1560 3770 1970 i
H-74 5220 2040 7440 2960 1970 1560 2690 1770 H-76 5110 1990 6550 3190 2250 3090 2850 9190 i
H-77 5300 2310 7570 4410 1550 1260 3090 1900 H-78 5070 24 00 12600 2760 800 850 1820 1290 i,
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