ML20029A697
| ML20029A697 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 04/30/1990 |
| From: | COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20029A695 | List: |
| References | |
| PROC-900430, NUDOCS 9103040050 | |
| Download: ML20029A697 (8) | |
Text
-
4-O 1
<\\
DRESDEN NUCLEAR POWER STATION PROCESS CONTROL FROGRAM Revision 2 APRIL, 1990 0
ZR03/P01 4
9103040050 910228 PDR ADOCK 05000010 N
i INDEX
?
A.
Purpose B.
References O'
C.
Definitions D.
Administrative Controls E.
Vendor Process System (s)
F.
Liquid Waste Processing System (Stock System)
G.-
Dry _Ictive Waste (DAW) p H.
Secondary Waste Streams I.
Inspection J.
Shipment 1
Of V
- v. :
ZR03/801 2 of 8
' Drced:n Nuclear Powar Station Procsss Control Program 1
A.
Purpose.
(-\\'
The purpose of.the Dresden Nuclear Power Station (DNPS) Process-Control Program is to establish the process parameters which will
(_)
provide a reasonable assurance that all low-level radioactive waste (LLRW) processed at Dresden Station will meet or exceed any and all acceptance criteria for processing, packaging, and shipment of LLRW to licensed burial facilitiet.
These-criteria include all Department of Transportation (DOT),
Nucles: Regulatory Commission (NRC), State, and licensed burial facilities' rules and regulations for the processing, packaging, and shippira of LLRW.
Althoq S Stock Equipment Company cement solidification system was installs during 1979, DNPS currently uses-commercial, vendor -
supplied processing systems for the processing of the primary liquid LLRW streams generated by the Station.
Commonwealth Edison requires that all vendors used to process liquid LLRW at DNPS must meet all applicable Commonwealth Edison Co. quality standards and shall have submitted a Process System Topical Report to the NRC. Furthermore. the vendor solidification / stabilization media must be approved by the licensed burial sites.
B.
References.
1.
The following-references were used as guidelines in preparing
_ (%
the Dresden Station Process Control Program.
O a.
Dresden Technical Specifications.
m (1) 1.0 Definition of Process Control / Program.
(2)' 6.9 Administrative Controls for Process Control Program.
b.
Dresden Procedures.
(1) DOP 2000 Series, Radwaste Operating Procedures.
(2) Special Procedures (as needed).
c.
Commonwealth Edison Program for Implementation of 10 CFR Part 61'and 10 CFR Part 20.311 Dated December 22, 1983.
d.
Commonwealth Edison Quality Assurance Manual.
10 CFR Part 20.311 Transfer for Disposal and Manifests, e.
f.
1'O CFR'Part 61, Licensing Requirements for the Land t
Disposal of Radioactive Waste.
7-s
!C ZR03/801 l
3 of 8
_.- _ ~.
s.
MRC Brcnch Tochnico! tcaition cn Wcato Form.
h.
Steck Equipment Comp:ny Froeces Ocntrol Fregram for BWRs.
2.
Tha following references are utilized in this FCF for information only.
NUREG 0133. Preparation of Radiological Effluent Technical a.
Specifications for Nuclear Power Fiants - October 1978.
b.
Dresden Final Safety Analysis Report Solid Waste Management System, Section 1.2.2.12, 1.2.1 6 sed 13.7.3.35.
C.
Definitions.
FROCESS CONTROL FROGRAM (FCF) - shall contain the current f ormulas, sampling, analysis, test and determination to be made to ensure that processing and packaging of actual or simulated wet solid wastes will be accomplished in such a way to assure compliance with 10 CFR Parts 20, 61, and 71, State Regulations, burial ground requirements, and other requirements governing the disposal of solid radioactive waste.
SOLIDITICATION - liquid waste processed to either a stable or nnstable (1=e standing monolith.
D.
Administrative Controls.
1.
Records of license reviews perf ormed f or changes made to the FCF program shall be maintained for the life of the ;! ant.
2.
The FCF shall be approved by the Commission prior to implementation.
3.
Changes to the FCF shall be documented. This documentation shall containt a.
Suf ficient inf ormation to support the change together with 3,the appropriate analyses of evaluations justifying the change (s), and b.
A determination that the change will maintain the overall conformance of the solidified waste product to existing requirements of Federal, State, or othwr applicable regulations.
4.
Changes shall become effective after review and acceptance by the On-site Review Function, and the approval of the Station Manager.
5.
All waste streams shall be classified per 10 CFR 61.55 and meet the waste characteristics per 10 CFR part 61.56.
ZR03/801 4 of 8 l-i
~~,-+w w
6.
If ccy of the PCP critoria cro not actisfied resultitig in o defcetivo product, th:n th3 shipment of ths defectivo product shall be suspend:d until o root ccuss daterminstion has b:ert identified.
7.
Station and vendor procedures shall be followed to comply with O
this PCP.
8.
Majet Changes to Radioactive Waste Treatment Systeas (Solid)
(The li2ensee may choose to submit this information as part of l
the annual TSAR 9pdate.)
a.
Licensee initiated major changes to the radioactive waste systems may be mate provided:
1)
The change is reported in the Monthly Operating Report for the period in which the evaluation was reviewed by the On-site Review Tunction.
The discussion of each change shall containt a)
A summary of the evaluation that led to the determination that the change could be made in accordance with 10 CTR 50.59 b)
Sufficient-detailed information to support the reason for the changel c)
A detailed description of the equipment, components, and prot,ess involved and the interfaces with other plant systemst d)
An evaluation of the change which shows the O'
predicted quantity of solid waste that differ from those previounty predicted in the license appilcation and amendmental e)
A comparison of the predicted quantity of radioactive materials in solid waste to the actual quantity for the period in which the changes were medel f)
An estimate of the exposure to plant operating i
personnel as a result of the changel and g)
Documentation of the fact that the change was reviewed and found acceptable by the On-Site Review Tunction.
2)
The change shall become effective upon review and acceptance by the On-Site Review Tunction.
.ZR03/801 5 of 8
., s.
E.
Vend:r Prccess System (s).
i DNPS currently us:s commercial, vendor supplied, processing system 6 for the proceasing of the primary liquid LLRW streams generated by the Station.
Connonwealth Edison requires that all vendors used to process liquid LLRW at DNPS r.;ust meet all applicable Conmonwealth Edison Co. quality standards and shall have submitted a Process System Topical Report to the NRC. Furthermore, the vendor soljdification/stabilisatl.. media must be approved by the licensed burial sites, y.
Liquid Waste Processing System (Stock System).
The Stock Equipment Solidification System method of solidification involves putting e specified amount of solidifying agent (Portland or masonry cement) into a modifled type 17-C drum. A mixing weight is added to the drum and it is transferred to the drum filling station.
At the filling station the drum is opened, a prescribed charge of waste is added to the drum and it is capped and tumbled. This operation is repeated a second time to complete the waste drum fill.
The Stock Solidifiestion Sys'.em is operated in accordance with procedures developed by Stock. The formulas used to fill waste and cement into a drum are those developed in the Stock Process Control Program. Tumbling times are as recomended by Stock.
1.
Spent resins.
Spent resins are pumped from their service units to a spent resin holding tank. The contents of this tank are periodically A
sampled.
Spent resins a:e sluiced to a decanting tank where V
they are allowed to oettle, and the appropriate amount of water is adjusted. Drums are filled by pumping irom this tank directly to drums. A complete description of the transfer.
decanting and drum filling operation can be found in DOP 2000-33, 35 and 36.
The Stock PCP formula for waste / concrete mixture is used in the drunaning process. Mixing persmeters are as recomunended by Stock.
2.
Concentrated Liquids.
Concentrated wastes are pumped from the concentrator / evaporators through a holding tank to a concentrated waste tank. Samples of each batch of evaporator bottoms are sampled every time the concentrator is dumped. The prescribed amount of waste and concrete in a drum are determined from Stock PCP formulas.
Drums are filled according to procedures using the appropriate formulation. The first drum from every batch is opened and examined for uniformity of mixing, solidification and presence.
of free stans.ing water. A complete description of the transfer, decanting, and drum filling operation can be found in DOP 2000-34, 35, 36-and 43.
IR03/801 6 of 8 l
l
3.
Filter sludges.
Tiltor sludg:s cro collected in a holding tenk. Wh:n sludg3 is to be processed, it is pumped f rom the holding tank to a decanting tank where the amount of water is adjusted. Drums are filled by pumping irom this tank directly to drums.
Samples of
(~
(
sludge are taken for analysis either directly from a drum or during the transfer to decent tank. A complete description of the transfer, decanting and drum filling operation can be found in DOP 2000-32, 35 and 36.
Stock system f orinulas are used to detertaine warte/ concrete rettos and inizing times.
4.
Stock drums are capped prior to the second turnbling and remain capped.
Experience has deconstrated that no probleros have developed due to the exother1nic reaction during processing in this system.
G.
Dry Active Weste (DAW).
DAW is collected throughout the plant in various containers.
Fotentially clean items are surveyed and released.
DAW items are sorted f or corrpactible and non-compactible wastes. Non-compactible itens are f urther sorted into items that can be decontaminated and items that cannot be decontaminated. Compactible wastes are precompacted into metal drtas using the Station's comercial compactor and then shipped to a comercial volume reduction f acility for super-compaction services.
Comercial vendor decontamination services and f acilities may be used f or decontamination of bulk items. Non-compactible, non-recoverable items are voltne reduced to the extent practical and placed into strong, tight containers and shipped to burial.
Dresden personnel handle all collecting, p
processing and shipping of DAW.
V 11.
Secondary Waste Strenms.
Periodically, vastes are generated from such sources as decontaminations, tank cleaning, sump cleaning and waste oil.
Wastes generated in this manner are sampled on a batch basis. Appropriete formulas for ratioing solidification agent to waste are developed on small bench sarcples, or if the consir tency of the waste is known, irom established iormulas.
Dresden Station ships large volumes of contaminated oil by utilising the on-site vendor processing system and vendor oli solidification Process control Program.
Small quantities of oily wastes may be prepared ior shipment to U.S. Ecology at Richland, WA., by absorbing the waste in an approved absorbent media in accordance with the U.S.
Ecology Burial license.
h(h 2,R03/B01 7 of 8
ro=
1.
Inspostion.
All chipping contoiters (lin:rs, drums and b:x:s) cre inspected fcr compliance with DOT and burial site requirements prior to use.
Periodically, random samples of each waste stream are chosen, 4
drtwas/ liners are inspected f or f ree standing water, and quality of g
solidification. Samples are taken at least once in every ten batches. A batch is defined as Evaporator Botto w Every concentrator dump is considered a batch.
Resins Every time Rad-Protection samples resin holding tank.
Sludge Annually.
If free standing water is observed, additional samples of the particular series of batches are taxen to establish a statistical base. Additional samples will he taken as warranted by this base.
Process parameters in use during the production of the.e drums /linere will be investigated and corrective actions taken as warranted.
Drtune found to contain free standing liquid after solidification will be decanted, then packaged in overpack drums and surrounded with approved absorbent prior to shipment.
Dewatered waste streates must meet all DOT, NRC and Burial Site criteria of (11 free stending water.
If this requirement cannot be met, then the waste siteam will be alawateled until Ntatinn requirements are met. All dewatered waste streams are verified to have <1% free standing water prior to be being released from the facility.
J.
Shipment.
.+
All wastes shipped off site are packaged in DOT approved shipping containers. All transport vehicles must meet the appropriate DOT and NRO requirements prior to londing.
l'aekages are inspected and shipments (vehicles) are inspected for compliance with DOT, NRC and burial site crit erien prior to leaving the site.
7.R03/801 8 of 8
.