ML19318D087
| ML19318D087 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 07/02/1980 |
| From: | Hovey G METROPOLITAN EDISON CO. |
| To: | Jay Collins Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19318D088 | List: |
| References | |
| TLL-316, NUDOCS 8007070320 | |
| Download: ML19318D087 (13) | |
Text
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Metropolitan Edison Company Post (Mfice Box 480
.g Middletown, Pennsylvania 17057 717 944-4041 Writer's DiIect D4al Number July 2, 1980 TLL 316 TMI Program Office Attn:
Mr. J. T. Collins, Deputy Director U. S. Nuclear Regulatory Commission c/o Three Mile Island Nuclear Station Middletown, Pennsylvania 17057
Dear Sir:
Three Mile Island Nuclear Station, Unit II (TMI-2)
Operating License No. DPR-73 Docket No. 50-320 Evaluation of EPICOR II Wastes The EPICOR II Radwaste System continues to process TMI-II Auxiliary and Fuel Handling Buildings contaminated water. The System has performed extremely well decontaminating water well below cleanliness criteria.
This performance has allowed using this processed water for decontamination purposes, and other transfer opera-tions, with minimal ALARA concerns. As of July 1, 1980, 365,055 gallons have been processed with 109,492 gallons remaining. A summary report is included as Attachment No. 1.
A detailed evaluation of System performance is the subject of another report being assembled. This letter is forwarded in response to NRC letter NRC/TMI-80-87, dated May 15, 1980.
Water cleanup has resulted in the generation of sixty-four (64) spent resin liners as of July 1, 1980. These wastes contain contaminants, including fission products and chemicals removed frem the water. This letter forwards information related to, and a discussion of, evaluations conducted to determine the condition of these wastes.
Spent resin liners removed from the EPICOR II Radwaste System are placed in Waste Staging Facilities until final disposition. These facilities are massive concrete structures all but precluding access to the liners. A sealed fifteen (15) ton concrete cap over each liner staging cell provide liners protection from environ-mental conditions and essentially eliminates access by unauthorized personnel. The facility provides shielding allowing personnel to work alongside and on top of the cells containing liners without radiation problems. This facility has well demon-strated the ability to satisfy stringent ALARA requirements. Attach nent No. 2 provides a layout of the protective barriers associated with liner retention at Three Mile Island (TMI). This is a general layout presentation: should details be necessary, they can be provided upon request.
800707oggg Metropohtan Ed son Company is a MemNr of me GenW PunLc U Les Sw
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J. T. Collin TLL 316 The retention of spent resin liners at TMI requires all necessary precautions to be taken to insure the fission products are contained until final disposition.
The Commission's Memorandum and Order dated October 16, 1979, direpted Metropolitan Edison to expeditiously solidify EPICOR II wastes. Extensive efforts are in progress to comply with this Order.
This letter does not address the status of this solidification effort.
Solidification will be the subject of se r; 'te correspondence as the results of conclusive studies and tests are obtain d.
This letter addresses the liners as they presently exist, in a dewatered state.
Attachment No. 3 provides a tabulated summary of pertinent data for all liners.
Evaluating EPICOR II liners and resins for long term stability was conducted prior to placing the System in service. A more exhausive study is in progress to document the projected longevity of these containers without detrimentally altering the safe containment of fission products. Attachment No. 4 documents the background of this evaluation and provides a detailed discussion of items included. Prelimi-nary analysis indicates, under postulated worst case conditions, the resin and liner package provides safe retention of fission products for several years.
A more precise definition of this condition is in progress which includes radio-lytical as well as chemical /metalurgical effects. When available, the details of this evaluation will be made available.
The NRC letter of May 15th requested information relative to the liners and resins in use.
Attachment No. 4 contains much of this information. Attachments 5, 6, and 7 provide drawings of both the 4x4 and 6x6 liners, and the painting specification used on the liner interior. Please note the liners have recently undergone a minor modification to allow installation of an air bubbler for redundant level indication.
The drawings are being updated to include these changes.
These will be forwarded as available; however, this alteration has little to no impact on the long term integrity of the liners.
Should additional information not forwarded or highlighted in this letter be required, please contact me or my staff.
Sincerely,
/s/ G. K. Hovey G. K. Hovey Director, TMI-II GKH:RJM: dad Attachments (7) cc:
T. Cintula' D. Dilanni B. H. Grier R. W. Reid H. Silver B. J. Snyder V.
Stello
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T List of Attachments To GPU/ MET-ED letter #TLL-316 of July 1st, 1980 Attach.#
Subj ect 1
Epicor II Radwaste System Summary Report dated June 18th, 1980 2
Epicor II Radwaste System Spent Resin Liner Protective Barriers 3
Epicor II Radwaste System Liner Usage Experience 4
Epicor II Radwaste System Liner Integrity and Resin Stability Evaluation 5
Epicor II Radwaste System 4 x 4 Liner Drawing (BL-62579) 6 Epicor II Radwaste System 6 x 6 Liner Drawing (T-66000) 7 a.
Epicor Liner Painting Specification (Placite #7155) b.
Epicor Liner Painting Specification (Phenoline 368 Primer + Finish) c.
Epicor Liner Surface Preparation Prior to Painting Specification (SSPC-SP5-63) 8 Summary of Epicor II Liner Gross Curie Loading 9
Summary of Epicor II Prefilters 1 - 11, Gross Curie Loading 10 Epicor II Radwaste System Geometry of Radiation Survey Meter (Sheets 1 & 2) 11 Epicor II Radwaste System Typical Prefilter Radiation Survey (With Survey Instrument 12. 5 and 11.75 inches from liner) 12 Epicor II Radwaste System Typical Prefilter Radiation Survey (With Survey Instrument 9" from liner) 13 Epicor 11 Resin. Irradiation Data
ATTACHMENT #1
.Paga 1 of 2 EPICOR II RADWASTE SYSTEM Summary of Operation as of June 4th, 1980 Date Commenced Processing Water-----------------------October 22nd, 1979 WATER PROCESSING Auxiliary Building Water Processed---------------
330,930 Gals.
Aux. & F.H.B. Water to be Processed--------------
142,979 Gals.
Inleakage of Water to be Processed---------------
408 GPD Total Gals. through System Including Recycle-----
816,753 Gals.
Number of Batches--------------------------------
50 Curies Removed by System-------------------------
47,269 Ci Curies to be Removed-----------------------------
9,259 Ci 10 GPM Processing Rate----------------------------------
New Radwaste System Processing Rate--------------
1.01 GPM Processed Water Disposition In BWST------------------------------------------
329,821 Gals.
In CC-T-1 & 2------------------------------------
1,836 Gals.
In Unit II - COT-1A------------------------------
81,607 Gals.
PERSONNEL EXPOSURE (As of June 8th, 1980)
Total Man Rem Exposure---------------------------
11,434 Man Rem Operation----------------------------------------
Liner Changeout----------------------------------
LMaintenance--------------------------------------
Man Ree Exposure per Gal.
Processed--------------
0.03 Man-Millirem Total Man Rem Exposure per Curie Removed---------
0.24 Man-Millirem Projected Man Rem Exposure for Total Curies to be Processed--------------------------- 13.6 Man Rem SOLID WASTE PRODUCED 62 Spent Resin Liners-------------------------------
Micron Filters-----------------------------------
11 4
Resin Traps--------------------------------------
Prefilters Avg. Curie Loading---------------------------
1,093.4 Curies Avg. Liner throughput------------------------ 7,696 Gals.
1st Demins.
Avg. Curie Loading---------------------------
16.8 Curies Avg._ Liner Throughput------------------------25,456 Gals.
- Later
+
ATTACHMENT #1' i Pega 2 of 2 2nd Demins.
i Avg. Curie Loading---------------------------
3.7 Curies Avg. Liner.Th'roughput------------------------51,755, Gals.
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ATTACHMENT #2 R
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,S,_ A \\ J Page 1 of 1 E ?COR --
RA)WAS~E SYS-EV SPENT RESIN LINER PROTECTIVE BARRIERS PROYECTIVE PROTECTIVE PROTECTIVE BARRIER BARRIER BARRIER TWO THREE ONE V
V M
CONCRETE WASTE 000 @
STAGING FACILITY IS TON 9,
CONCRETE CAP WITH SEAL SITE susauEHANNA
[ EL. 310 RIVER EL.
, so ggig f
GEL. 305-4
.e_.
,a'sa TMI l
- i.'..
- '* j.;,: l' 'cf y GRADE GL.
@,YkN 5'#dJ; 277 '- o "
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SPENT RESlN
.h'li,4T4 5.'.:,'0 LINER IN PROTECTIVE STORAGE CELL (
' BARRIER NOTE-O NORMAL WATER ELEVATION CONE : TION (RIVER AT 303, FLOODING To PREVENT TMI
)
l
@ THE FLOOD DIKE IS DESIGNED DURtNG THE WORST
- c. : SE
ATTACHMENT #3 Pego 1 of 7 I
11 LINER USAGE EXPERIENCE rane: 1 EPICOR DEMIN 1 (DF)
DEH1N 2(DS PREFILTER (PF)
FI.OW RATE 1
2 3
4 5
6 1
2 3
4 1
2 SOURCE BATCil#
CALLONS CPM 0.78 0.11 1
6132 12 Aux. Sump 203 0.79 0.22 2
7132 10 Aux. Sump 240 0.80 2,07 3
6116 8.3 Aux. Sump 484 4.40 0.14 4
14110 12 Aux. Sump &
1239 Neut 8A 5
10700 10 Aux. Sump &
0.51 0.24 Neut 8B 592 3100 10 CCB Sump 1.56 3.18 696 6
3900 10 Aux. Sump &
RCBT
'A' 10100 11 U-1 MWST, ABST &
28 2.00 7
474 Aux. Sump 153 0.40 0.02 S
4280 8.5 U-1 MWST. ABST &
Aux. Sump 2780 11 CCB Sump U-1 ffWST, ABST &
155 4,20 0.29 9
444"s 11
_ Aux._S_ ump TOTALS 72785 Liner Cl.angcout Date:
Ca11ons Thru Liner 19380 14100 17700 10100 4280 7775 19380 11800 10100 1150s 5113r 21605 Curies Deposited 977 1739 128R 474 153 155 2.37 6.47 78 4.6 5.96 2.31 Changcout Date 11/5 11/8 11/17 11/10 12/11 17/14 11/5 11/17 11/30 12/14 11/8 Re non fot Clangcoit.
3 1
1 i 2 2
2 3
2 2
2 2
- 1) Aporoachinn Curic 1.iiiit 2) (hnnical Concer.i,: 3) Level Prebe ri,I lam; 4) Cutage
ATTACHMENT #3 Pcgt 2 of 7 EPICOR 11 LINER USAGE EXPERI,ENCE race: 2 PREFILTER IPF)
DEMIN 1 (DF)
DEMIN 2 (DS)
FLOW RATE BATCHf CALLONS GPM /
SOURCE 2
3 4
7 8
9 10 11 5
6 7 _
From Page 2.31 1
72785 10 3730 11.5 U-1 MWST, ABST &
134 0.16 Aux. Sump 11 8505 15 Aux. Sump 1071 38.6 0.36 12 5475 15 RCBT
'A' 863 19.6 3.38 889 1.56 13 5500 7
RCBT
'A' 0.13 0.27 0.19 14 (161,763) 10 CC-T-2 (Recirc) 131.2 0.34 0.01 15 1000 10 RCBT
'A' 692.5 0.92 1.76 16 4000 10 RCBT
'A' 0.10 0.10 0.30 17 (206,000) 10 CC-T-2 (Recirc.)
TOTALS 100995 Liner Changcout Date:
Gallons Thru Liner 12235 5475 5500 1000 4000 17710 6500 4000 39315 6500 4000 Curies Deposited 1205 863 889 131.33 692.6 58.36 0.61 1.02 6.05 1.76 2.06 Changcout Dat 12/1:
12/19 12/21 1/11 2/5 12/19 1/11 2/5 12/19 1/11 2
2 2
2 2
2 2
2 2
Reason for Chant,cout
]
g
- 1) Approachinr. Curie T.imit 2) Cheni.-al Con ns 3) 1.evel Probe Probicm.9 4) outar.e
ATTACHMENT 43 Pcg3 3-of 7 EPICOR ll LINER USAGE EXPERIENCE race: 3 PREFILTER (PF)
DEMIN 1 (DF)
DEMIN 2(DS)
FLOW RATE
~
BATCll#
SOURCE
_ 12 13 14 15._ _16 17_ _ __8 9
_10 ILJ_
From Page 2.06..
2 100995 0.02 18 (104,442) 30 CC-T-2 (Recirc.)
18.9 0.013 19 7402 10 RCBT 'A' 1056.7 20 6820 10 RCBT 'A' 973.5 0.5 0.088 0.91 0.04:
0.001 3380 10 CCB Sump 21 7940 10 RCBT
'A' 168.45 23.467 0.150 Aux. Sump 7.05(
0.410 22 8000 10 RCBT
'A' 991.8 1.559 0.008 23 8250 10 RCBT
'A' Ig 1069.8 0.683 0.001 24 7053 10 RCBT
'A' i
l TOTALS 149858 Liner Changcout Date:
Callons Thru Liner 7420 6820 11320 8000_
8250 7053 14240 19320_ 15303 4000 48863 Curies Deposited 1056.1 973.5168.96 991.8 1250.01069.8 19.4
- 30. 56F 2.2421 0_8-0.673 Changeout Date 2/19 2/20 2/27 2/29 3/4 3/6 2/20 2129 2/16 -
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Reason for Changcout-T
,2 2
2 1
1 2
l' 2
i
- 1) Approaching Cur 1< 1.imit 2) Chemical Cone.'rns 3) Level Probe Problems 4)
'utace
ATTACHMENT #3 Pego 4 of 7 EPlCOR I. l LINER USAGE EXPERIENCE race:4 1EEFIL'IIR (PF)
DDiIN 1 (DF)
DDiIN 2 (DS) t FLOW RATE BATCII#
GALLONS
.GPM s'
S0tiRCE 18 19 20 21 22 23 10 11 5
6 Fmn Page 2.242 0.673 3
149858 25 8100 10 RCBT 'A' 1286.0t 1.616 0.001 26 7952 10 RCET 'A' 1263.31 0.848 0.004 (13618) 10 CC-T-1 Training 27 8100 10 RCBT 'B' 1284.1 0.466 0.001 28 8100 10 RCBr 'B' 1283.2 1.357 0.011 e
29 7103 10 RCET 'B' 1126.0:
0.443 0.016 1084.08 40.71 0.034 30 11300 10 Osr & Aux. Step i
TOTALS 200513 Liner Changcout Date:
Gallons Thru Liner 8100 7952 8100 8100 7103 11300 31355 34603 64915 _34603 Curies Deposited 1286.0/ 1263.31 1284.1 1283.2 1126.02108]i,08 4.706 f.3.442 0.628 0.062 JL1/. _ 4L17 3/14 1t Changeout Date 3/10 3114 4/_8 4/10 4/15 4/17.
Reason for Changeot..:
1
. I 1
1,,
1 a2 4
2 4
[
- 1) Approaching Curie f.it-it 2) Chemical Co.
rns 3) 1.ev.1 Probe Proble~s
$utar,e
ATTACHMENT #3 Pego 5 of 7 EPlCOR
!I LINER USAGE EXPERIENCE rage: 5 Ihmin Danin A
(PF) 1(DF) 1(@_
FLOW RATE 24 25 26 27 28 29 30 31 32 12 6
BATCHf GALLONS GPM /
SOURCE Fran Page 0.062 4
200513 1%
0.002 31 8100 10 RCET 'B' 1283.5:
1.236 0.018 32 8100 10 RCBT 'B' 1283.29 1.16 0.363 33 8100 10 RCBT 'B' 1283.07 1283.65 0.142 0.781 34 8100 10 RCBT 'B' 1174 4 6.339 0.007 35 14212 10 lurr 1283.8 0.513 0.397 36 8100 10 RCBT 'B.
969.99 0.048 0.073 37 9405 10 RCBT 'B', Atxx. Stry 1292.2 0.547 0.575 5100 10 RCBT..
38 L292.02 0.574 0.719 39 5100 10 RCBT 'C' TOTALS 274830 Liner Changecut Date:
Gallons Thru Liner 8100_
8100 8100 81_00 _ 1421 L 8100 9405 51))O___1100._.14317_ M 92f 128_3,29 1283.071783,65_ 1174.4e12831169 99 _1227_l l292.02 11.fi19 231_
Cutles Deposited h83.5:
2 Changeout Date
_4/1 J22__4/_24 4/26
_ 5]_2__5/1._._5/_U.J/_14__ 5/15 Reason for Ch.'agenut :
g 1
1
_1_,,_,1 1
_ 1__g 1
1____-
- 1) Approaching Curic I.imit 2) Cl. nical Cor.u rns 3) I cvel Probe Problems M o tar,e u
ATTACHMENT #3 Pegn 6 of 7 4
EPICOR 11 LINER USAGE EXPERIENCE rase: 6 Dmin 1 Dmin i
PREFIL1TR (PF) ~~~
~~~
~
(DS)
(DF)
FLOW FATF.
- - ~ ~ '
12 13 6
r.0tlRCE 33 34 35 36 37 38 39 IIATCHf GALLONS GPM
~ ' ~
11.619 2.997 Fma Page 5
274830 3.286 0.529 40 5100 10 RCBT 'C' 1289.52 0.337 0.717 41 5100 10 RCBT 'C' L292.28 1.125 0.055 1292.15 42 5100 8
RCBT 'C' 0.681 0.389 43 5100 10 RCBT 'C' f292.27l 0.502 0.604 1292.2J 44 5100 10 RCEE 'C' 1292.91 0.214 0.211 45 5100 10 RCBT 'C' 1293.0(,
0.075 0.177 46 5100 10 RCBT 'C' TOTALS 110.530 Liner Changecut Date:
Gallona Thru Liner 100_
3100 _
5100 5100 5100_._.51@. J10(L
.84517, 25,.500 1346,2g.
Curies Deposited 1289.571297.28 1292.1' 1292.27 1292.231292.91 1293.0(
15.242 2.597 5.679]
Changeout Date 5/16 5/19 5/20 5/22 5/23 5/27 5/28 5/19 5/28 32 4
Neason for J,i anr. oP*
1 1
1 i
1 1
1
, 1 l2 w
o a
i 1 ).*, p re i,:1
.v-r irin limi* ?\\ Ci atent Concerca ti to ol Probe Proble*s 4) OtA a r,e
ATTACHMENT #3
. Pego 7 of 7
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.EPlCOR Il LINER USAGE EXPERIENCE Pace: 7 2
PREFI131R (PF).
DEMIN 1 (DF)
FLOW RATE
)
BATCHf GALLONS GPM /
SOURCE 40 41 42 43 44 45 46 13 14 7
8 Fran page 310530 2.597 6
47
.5100 10 RCBT 'C' L292.7J 0.448 0.152 48 5100 10 RCBT 'C' 1292.78 0.003 0.521 49 5100 10 RCBT 'C' 1292.78 0.168 0.382 50 5100 10 RCEr 'C' 1292.62 0.185 0.529 51 16225 10 RCBT/ Tank Farm 1096.12 1.303 0.001 9
52 17900 12 RCBT/ Tank Fam 1203.52 7.104 0.084 1
TOTALS Liner Changeout Date:
Gallons Thru Liner 5100 5100 5100 5100 16225 17900 r.5.900 Curies Deposited 1292.7:,1292.78 1292.7f 12 %.62 096.12 1203.52 3.401 ange ut Date
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5/31 6/2 6/4 6/L_ 6/26 6/ A 6/6 teason for Changeout:
i 1
1 1
2 1
2
- 1) Approaching Curie Limit 2) Chemical Concerns 3) avel Probe Problems 4) Outage
-