Material Disposition Planning

Material Disposition Planning

Olga Ligeti

Radiation Protection Department

MARCH 24, 2009

2

OverviewOverview

• CURRENT CONDITIONS

• PEP D&D SCOPE

• MATERIAL DISPOSITION PLAN

• REUSE CONSIDERATIONS

• WASTE DISPOSAL CONSIDERATIONS

• STORAGE CONSIDERATIONS

• CONCLUSIONS

3

CURRENT CONDITIONSCURRENT CONDITIONS

PEP Ring and BABAR are Radiological Areas and all metal and metal containing objects within the accelerator tunnel are subject to:

• METAL MORATORIUM

• METAL SUSPENSION

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CURRENT CONDITION ALLOWANCESCURRENT CONDITION ALLOWANCES

• METAL & METAL CONTAINING ITEMS– May be conditionally released for re-use for

their intended purpose at other facilities, whether radioactive or not.

– May be stored on site with an identified future use whether radioactive or not.

– Non-radioactive items may be stored on or off-site.

– Radioactive items without identified future use will be disposed of as radioactive/mixed waste.

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PEP LIMITED SCOPE D & D PEP LIMITED SCOPE D & D

• ITEMS TO REMAIN IN PLACE IN THE RING– Tunnel structure– Communication and annunciation system– Fire detection system– Fire suppression system– Overhead lights– Cooling water headers and pumps– Water collection & pumping systems– AC power conduits, breaker boxes and welding

outlets– Shielding blocks at IR halls– Cable trays

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D&D SCOPED&D SCOPE

• REMOVAL FOR POTENTIAL RE-USE– Electro-magnets– Vacuum chambers– Supports– Power Supplies– Controls, RF station, monitors– Beam feedback system– Cavities, Klystrons, HVPS, Waveguide– CAMAC– Some Computers– Some Racks

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D&D SCOPE cont.D&D SCOPE cont.

• POTENTIAL WASTE ITEMS– Beam dumps– Cables– Grout– Water Hoses– Some Computers– Some Racks– Any other items removed without an identified

intended use or whose future use is nullified

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CURRENT GROSS RADIOLOGICAL SURVEYCURRENT GROSS RADIOLOGICAL SURVEY

• Specific items in highlighted regions showed activation- not all items in region

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MATERIAL DISPOSITION PLANMATERIAL DISPOSITION PLAN

• RE-USE– PEP-X– FERMI Lab– Italy

• OFF- SITE DISPOSAL– Mixed Waste – Radioactive Waste– Hazardous Waste– Universal Waste– Electronic Waste

• ON SITE STORAGE– Use Pre-existing structure– Build a structure

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MATERIAL & WASTE FLOW DIAGRAMMATERIAL & WASTE FLOW DIAGRAM

ON SITE STORAGE FOR REUSE

ITEMS REMOVED FROM TUNNEL

DISPOSE - RWM

WASTE?

SLAC DOE SUSPENSION

RELEASE PROTOCOL

DISPOSE - WM

RESTRICTED RELEASE

FOR INTENDED PURPOSE

REUSE – ON/OFF SITE

RAD? HAZ?

HAZ?

METAL?VALUE/REUSE?

YES

YES YES

NO

NO

NO

YES YES

NO

YES

NO NO

YES

RAD? TRASH

PROPERTY CONTROLRECYCLE

NO

APPROVED

YES

NOT APPROVED

HOLD

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OFF-SITE REUSE CONSIDERATIONSOFF-SITE REUSE CONSIDERATIONS

• Radiation levels which trigger regulation by the Department of Transportation– Isotope specific

• Concentration (Bq/g) Based• Total activity per consignment

– Packing/Shipping • Performed or directly supervised by DOT trained personnel

• Radioactive items require characterization for proper DOT classification– Gamma spec analysis– Other chemical hazards

• Export Controls– Stanford authorization required

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OFF-SITE DISPOSAL CONSIDERATIONSOFF-SITE DISPOSAL CONSIDERATIONS

• Mixed Wastes– Ship out within 90-days of generation– Limited treatment facilities and options

• Use process knowledge to identify activated items with hazardous components

• Characterize in advance of generation– Sample paints while still in place– Low background area for gamma spec analysis

– Disposal Cost• At least $174.00 per cubic foot

– Macro-encapsulation – such as painted items

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POTENTIAL MIXED WASTE EXAMPLES FROM PEP IIPOTENTIAL MIXED WASTE EXAMPLES FROM PEP II

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OFF-SITE DISPOSAL CONSIDERATIONSOFF-SITE DISPOSAL CONSIDERATIONS

• Radioactive Waste– Dispose of within 12 months of generation– Energy Solutions or Nevada Test Site– Staging Area for waste processing– Disposal Cost

• Range from $18.00/cuft at NTS to $22.00/cuft EnergySolutions• NTS pricing varies yearly based on volume projections

– Disposal at NTS requires an NTS approved generator Waste Certification Program or the use of an NTS authorized Broker Waste Certification Program

• Increased up-front costs– Broker – project specific pricing

– SLAC’s own certification

15RADIOACTIVE WASTE PROCESSING DOCUMENT FLOWRADIOACTIVE WASTE PROCESSING DOCUMENT FLOW

RADIOACTIVE WASTE

LOW LEVEL WASTE

MIXED WASTE

HAZ?

YES

NO

Generator Completes Hazardous Waste

Determination Form

YES

MAYBE

NOYES

DISPOSAL PATH?

Generator Completes

Mixed Waste

Generation Request

Form

SUBMIT TO RWM

REQUESTOR’S ASSOCIATE DIRECTOR APPROVAL

ES&H DIRECTOR APPROVAL

DOE SSO APPROVAL

NO

YES

YES

MEETS WAC?YES

Generator Completes WAC Exemption Request Form

NO

UNACCEPTABLE

Generator Completes Radioactive Waste Declaration Form

YES

YES

ACCEPTABLE

RWM PROCESS WASTE FOR OFF-SITE DISPOSAL

RE-EVALUATE

NO

NO

NO

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OFF-SITE DISPOSAL CONSIDERATIONSOFF-SITE DISPOSAL CONSIDERATIONS

• Hazardous Waste– Ship out within 90-days of generation

• Characterize in advance of generation

– Disposal Costs vary with hazards• $10 - $150 per cubic foot

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OFF-SITE DISPOSAL CONSIDERATIONSOFF-SITE DISPOSAL CONSIDERATIONS

• HAZARDOUS WASTES– Exemptions from regulation due to recycling and

management systems• Painted Metals – Sold – can generate income• Electronic Wastes - $2-5/cuft• Universal Wastes - $6-95/cuft

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TRANSPORTATIONTRANSPORTATION

• Trucking– 40,000 lbs load limit

• Additional weight and size permits must be obtained in advance

– DOT Regulated Hazardous Materials• Radioactive Materials, Radioactive Wastes, Mixed Wastes,

Hazardous Wastes, and Hazardous Materials– Registered and licensed hauler– Commercial Drivers License (CDL) with appropriate

endorsements

– Cost• Destination/Diesel/Regulation based pricing

– DOT Regulated shipment $3000 NTS (NV)- $4000 EnergySolutions (UT)

– Non–Regulated shipment $2000 NTS (NV) - $2500 EnergySolutions (UT)

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ON SITE STORAGE CONSIDERATIONSON SITE STORAGE CONSIDERATIONS

• Recommend no storage outdoors– Environmental consideration / Upkeep

• Rust flakes• Paint chips

• Use existing structures – As detailed in B. Wisniewski’s presentation– Modifications for access

• Racks, isle spaces

• Building New Structure – As detailed in J. Seeman’s presentation– Design– Building Code requirements– Access

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CONCLUSIONCONCLUSION

• SLAC possesses the competencies and protocols for managing Radioactive, Mixed, and Hazardous Wastes

• Obtaining approval for SLAC’s proposed DOE Suspension release protocol– Non-Radioactive metals largest volume of

items generated in the dismantling