**[Liquid Waste Stabilization and Disposition]{.underline}**

**Background/Lifecycle Discussion:**

The Savannah River Site (SRS) is a Department of Energy (DOE) site that
has produced nuclear materials for national defense, research, National
Aeronautics and Space Administration (NASA), and medical programs since
it became operational in 1951. As a by-product of this production, there
are approximately 36 million gallons of liquid radioactive waste stored
on an interim basis in 49 underground waste storage tanks as of the
beginning of March 2005. Continued long-term storage of these liquid
wastes in underground tanks poses a potential environmental risk. Twelve
of these tanks have leak sites that have been identified and are being
managed to prevent leakage to the environment. Since FY 1996, the SRS
has been removing waste from tanks, pre-treating it, vitrifying it, and
pouring the vitrified waste into canisters for long-term storage and
disposal. From FY 1996 to February 2005, over 1,800 canisters of waste
have been vitrified. The canisters vitrified to date have contained only
sludge waste. Processing of salt waste will begin in 2007 with the
startup of the Actinide Removal Process (ARP) and the Modular Caustic
Side Solvent Extraction Unit (MCU) and continue at a higher rate in 2009
with the startup of the Salt Waste Processing Facility (SWPF).

Completion of this work scope will result in the treatment and permanent
disposal of the liquid radioactive waste currently stored at the SRS as
well as radioactive waste from planned nuclear materials stabilization
activities by FY 2019. It will also result in the operational closure of
the remaining 49 underground storage tanks by FY 2020 (2 of the original
51 tanks have already been closed in place using grout in FY 1998) and
the deactivation of the major facilities and equipment that comprise the
system. Once facilities are deactivated, these facilities will be
maintained in a minimal surveillance and maintenance condition until
transferred for decommissioning.

**Contract Period Objectives:**

**12/1/06 to 9/30/11**

The Liquid Waste Stabilization and Disposition project will receive,
store, treat, and process for disposal the radioactive liquid waste at
the Savannah River Site. These activities are performed in the F and
H-Area Tank Farms, the Effluent Treatment Project (ETP), the Defense
Waste Processing Facility (DWPF), the Saltstone Facility, the
Deliquification, Dissolution, and Adjustment (DDA) process, ARP
Facility, MCU (starting in 2007), and the SWPF (starting in 2009). The
scope of work would also include closure of 11 liquid waste storage
tanks and one evaporator.

**12/1/11 to 9/30/16**

The Liquid Waste Stabilization and Disposition project will continue to
receive, store, treat, and process for disposal the radioactive liquid
waste at SRS. These activities are performed in the F and H-Area Tank
Farms, the ETP, the DWPF, the Saltstone Facility, and the SWPF. The
scope of work would also include closure of 21 liquid waste storage
tanks and one evaporator.

**Core Work Scope:**

**12/1/06 to 9/30/11**

-   Deliquification, Dissolution, and Adjustment (DDA), ARP/MCU will be
    operating to reduce the inventory of the salt waste stream until
    startup of the SWPF in 2009

-   SWPF will be operational in 2009 (current contract has Parsons
    Infrastructure and Technology Group operating SWPF for a one-year
    period after startup)

-   Tanks in both F-Area and H-Area will be maintained in such a manner
    that they can support Canyon operations; DWPF operations; and SWPF
    operations. The work scope includes the operations, surveillance,
    and maintenance activities to ensure waste is received and stored in
    the waste storage tanks. It also includes the use of evaporator
    systems to manage the storage of the waste. The infrastructure on
    tanks, transfer systems, the evaporator systems, and support
    facilities will be maintained and modified as necessary to allow
    continued receipts, and storage of the waste in support of the
    cleanup mission.

-   Heel removal and tank system isolation for 11 tanks and one
    evaporator will be completed. The work scope would include
    installation of necessary equipment to remove and transfer the
    waste; clean tank interior/evaporator cell; and where applicable,
    tank annular space.

-   Close 11 liquid waste storage tanks and one evaporator. The scope of
    work would include preparing an acceptable Waste Determination to
    justify closure with minimal residual waste; preparation of required
    closure documents; and actual grouting of the tank/evaporator void
    spaces.

-   Meet Federal Facility Agreement (FFA) closure dates for
    non-compliant storage tanks. These tanks are included in the above
    11 but are specifically cited because of a regulatory commitment.

-   DWPF will process and vitrify an average of 250 physical canisters
    (not equivalent) through 2008

-   DWPF will process and vitrify an average of 230 physical canisters
    (not equivalent) starting in 2009

-   Minimum number of physical canisters produced for five years is
    1000.

-   Average DWPF canister waste loading for the five year period is 38
    wt% solids

-   Sludge removal from tanks and preparation will meet required feed
    rate

-   DWPF will be processing concentrated actinides and cesium streams
    from MCU in 2007-2009 and the SWPF in 2009 through the end of the
    program

-   Construct and operate an acid side evaporator for DWPF recycle
    stream

-   Construct a failed equipment storage vault in S Area

-   Complete DWPF Melter #4 Project

-   Start DWPF Melter #5 project

-   Saltstone Facility will receive and process and grout salt waste at
    an average rate of 175,000 gallons per week

-   Complete DDA and ARP/MCU salt waste processing per the Interim Salt
    Processing Strategy Planning Baseline (CBU-PED-2004-00027) prior to
    SWPF becoming operational in 2009. Operation of DDA and ARP/MCU will
    reduce the salt inventory and recover tank space which will support
    Canyon operations, DWPF operations, and Tank Farm operations. The
    work scope involves dissolving saltcake and providing salt solution
    feed to DDA and ARP/MCU for treatment and disposal via Saltstone.

-   Utilize Tanks 48, 49, 41, and 42 to dissolve, batch, adjust, and
    qualify salt waste at a steady state rate of 7 million gallons per
    year for SWPF starting in 2009

-   Starting in 2009, Tank 49 will be the feed tank for SWPF

-   Maintain Tank 50 as the low-level waste (LLW) Saltstone feed tank

-   Operate ARP and MCU at \~1.2 Mgal/yr to process salt waste until
    SWPF comes online in August, 2009

-   Shut down MCU and place ARP in standby upon startup of SWPF

-   Permanently shut down ARP one year after SWPF completes its first
    year of successful operation

-   Complete additional waste transfer infrastructure modifications as
    required to support system attainment of a minimum of 7 Mgal of
    qualified salt solution to SWPF per year starting in 2009

-   Provide support to SWPF construction and operations in J-Area as
    required by Interface Control Documents (ICD).

-   Support instantaneous processing capacity at SWPF of 9 million
    gallons per year

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-   Construct additional disposal vaults for Saltstone Facility as
    required by processing rates

-   The ETP Facility will continue to operate to support Tank Farm
    activities and closure activities. The ETP mission is to treat all
    incoming waste from source generators. The ETP will process waste
    streams from the evaporators (evaporator bottoms).

-   Sludge Batch #5 will be needed by April 2008

-   Sludge Batch #6 will be needed by mid 2011

-   Support the conceptual design of a Canister Shipping Facility

**12/1/11 to 9/30/16**

-   Tanks in both F-Area and H-Area will be maintained in such a manner
    that they can support Canyon operations; DWPF operations; and SWPF
    operations.

-   The ETP Facility will continue to support Tank Farm activities

-   Complete heel removal and tank isolation for 21 tanks and 1
    evaporator

-   Close 21 liquid waste storage tanks and 1 evaporator

-   Complete closure of all non-complaint Type I, II and IV liquid waste
    storage tanks to meet FFA closure dates. These tanks are included in
    the above 21 tanks.

-   DWPF will produce an average of 230 physical canisters (not
    equivalent)

-   SWPF operational at 7 million gallons per year of salt solution

-   Operate Saltstone Facility to receive salt waste at rate of 175,000
    gallons per week

-   Utilize Tanks 48, 41, and 42 to dissolve, batch, adjust, and qualify
    salt waste at a steady state rate of 7 million gallons per year for
    SWPF

-   Tank 49 will be the feed tank for SWPF

-   Maintain Tank 50 as the Saltstone feed tank

-   Support instantaneous processing capacity at SWPF of 9 million
    gallons per year

-   Construct disposal vaults for Saltstone as required by processing
    rates

-   Two additional sludge batches will be formulated from as yet
    undetermined tank material.

-   Average DWPF canister fill height of 100 inches; 96 inches minimum
    acceptable

-   Minimum number of countable DWPF canisters for five years is 1000.

-   Average DWPF canister waste loading for the five year period is 42
    wt% solids

-   Sludge removal and preparation will meet required feed rate

-   Construct an additional failed equipment vault in S Area

-   Complete DWPF Melter #5 project

**Optimized Work Scope**

-   Construct an additional failed equipment vault in S Area earlier

-   Increase throughput and reduce total number of high-level waste
    (HLW) canisters to significantly reduce cost and accelerate the
    project. Includes increasing waste loading per can, melt-rate
    improvements, melter improvements, and facility optimization to
    reduce bottlenecks. Also, optimize melter glass loading.

-   Improve bulk waste removal with more efficient mixing and chemical
    cleaning to minimize residual waste

-   Accelerate saltcake and sludge waste removal in unobstructed and
    obstructed tanks and tank annuli. Improve leak detection/mitigation
    and develop better technologies for tank farm water management

-   Reduce costs/volume of recycle and other wastes returned to tank
    farms. Reduce the silicon content being sent to the tank farm which
    is an evaporator buildup issue.

-   Support final design and construction of the CSF

**Appendix A**

***Anticipated System State as of November 30, 2006***

-   ARP: 512-S and 241-96H operational

-   MCU operational

-   DDA processing is underway

-   Transfer to Saltstone of Salt Batch #3 under the interim salt
    processing strategy (CBU-PED-2004-00027) nearing completion

-   Total salt waste processed is approximately 3.5 Mgal of 6.4 molar
    sodium since 10/05

-   Tank 48 contents removed and heel/residue removal program ready to
    initiate

-   Tank 49 serving as feed tank for ARP/MCU

-   Tank 50 serving as feed tank for Saltstone

-   Tank 41 serving as DDA feed & batching tank

-   Tank 25 salt dissolved, meets waste acceptance criteria (WAC) and
    ready to make up Batches #4 and #5

-   SWPF construction zone (J-Area) established and services provided as
    required per ICD's

-   Waste Transfer Line Infrastructure project completed including
    jumpers and required modifications in 511-S, 512-S, and H-Tank Farm

-   Saltstone receiving at 100,000 gallons per week of up to 0.2 Ci/gal
    feed

-   Saltstone Vault #2 constructed and turned over to operations

-   Saltstone Vault #4 nearing capacity

-   ETP Facility operating to support Tank Farm Activities.

-   Tank Farm operational capacity able to process ten to twenty-five
    million gallons of waste annually.

-   Sludge Batch 4 ready for DWPF operations.

-   The Working Inventory in Spare Type III tanks is maintained to
    produce a useable space greater than 500,000 gallons during the
    period.

-   Tank 19 actively grouted for closure. All actions necessary,
    including contract award, to grout Tank 18 and 1F evaporator
    complete.

-   Heel and tank isolation completed for Tanks 11, 4, 5, and 6.

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-   Currently DWPF is averaging 250 countable canisters a year through
    2008 to make up for the melter replacement outage. This number will
    change to 230 in 2009.

-   The average DWPF canister waste loading is 36 Wt% solids

-   Average DWPF canister fill height is 100 inches

-   Sludge batch preparation meets DWPF feed demand

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-   Recycle from DWPF is being sent to H-Tank farm for evaporation

> **Appendix B**
>
> ***Assumptions***

-   Successful implementation of the Waste on Wheels (WOW) process, an
    innovative technical alternative to the baseline for bulk waste
    removal of sludge from the liquid waste storage tanks

-   The new Canister Shipping Facility will be designed, constructed,
    and operational to support shipments beginning in 2010

-   The Federal Repository at Yucca Mountain will be available to start
    receiving DWPF canisters by 2012

-   Final shipment of DWPF canisters will occur by 2020

-   SWPF will be online by July 2009. Throughput will be maximized for
    salt treatment such that sludge and salt programs end simultaneously

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-   Tank space needs will not create a critical problem.

-   The evaporators will be able to handle the assumed operational rate
    needs.

-   No liquid waste storage tanks will undergo significant problems that
    will require an unexpected large transfer of waste to be removed
    from the tank.

-   DOE-HQ and NRC review and approval of Section 3116 waste
    determinations occur as scheduled

-   Section 3116 determinations for salt waste approved to support start
    of salt processing in 1QFY06

-   No program delays occur as a result of National Academy of Sciences
    review during FY05 and FY06

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-   The evaporators will be able to handle the assumed operational rate
    needs.

-   The assumed influents from the DWPF or the canyons will not increase
    dramatically to affect Tank Farm operations. SWPF expected to double
    DWPF recycle

-   Waste treatment capabilities support waste removal and closure
    schedule

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-   Issues associated with oxalic acid cleaning of tanks resolved
    without impacts to treatment facilities (ARP, SWPF and DWPF).

-   Waste treatment capabilities support waste removal and tank closure
    schedule.

-   New technologies support accelerated waste removal and tank cleaning
    and closure schedule.

-   New waste generation and storage requirements do not impact closure
    of 10 Type III tanks.

> **Appendix C**
>
> ***Risks***

-   Yucca Mountain -- The integrated canister acceptance schedule
    developed for receipt at Yucca Mountain assumes 205 canisters/year
    from SRS to be shipped starting in FY 2010. To meet the Performance
    Management Plan (PMP) target of 2020 for all canisters shipped, the
    rate must be increased to 500 canisters/year starting in FY 2010.
    There is a potential minimum 2 year delay for the opening of Yucca
    Mountain. This would impact the PMP goal.

-   Delays in the implementation of the 3116 Waste Determination and the
    review by the Nuclear Regulatory Commission could delay tank closure
    and salt treatment activities.

-   Tank Farm Useable Storage (compliant tank) Space -- Without some
    salt disposition success, Type III tank space will continue to be a
    major concern until the startup of the SWPF. Preparation of feed and
    receipt of residues from the DWPF requires usable working tank
    space. Pursuit of additional space management initiatives includes
    continued evaporation of liquid waste, returning Tank 48 to storage
    service, and reduction of inputs to the Tank Farms.

-   SWPF -- Success of the salt processing strategy is based upon SWPF
    becoming operational in FY 2009 and throughput being maximized for
    salt treatment consistent with completion of sludge vitrification

-   Age of facilities -- The plan used to manage waste disposition
    includes provision for normal maintenance and specific long-duration
    equipment replacement activities, such as the DWPF melter. However,
    unforeseen equipment failures, such as a major tank leak or transfer
    line failure or evaporator failure, could have a significant impact
    on the operation of the system.

-   If SWPF is delayed as the result of the Waste Determination Process
    (per FY05 NDAA Section 3116) this could impact tank space needs.

-   Potential lawsuit associated with waste determinations and/or liquid
    waste storage tank/system closure.

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-   As the ETP continues to age additional maintenance will be required.

-   The complexity of the tank farm transfers will increase to support
    sludge and salt removal processes and will require complex
    integration.

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-   New tank leaks could impact storage capacities and waste removal and
    tank closure schedules.

**Appendix D**

***References***

**[Orders/SRIDS]{.underline}**

-   Standards/Requirements Identification Document WSRC-RP-1268-000 thru
    WSRC-RP-1268-020

**[SRIPS/Manuals]{.underline}**

-   Manual 1S: SRS Waste Acceptance Criteria Manual

-   1Q Manual for QA plans

**[Regulatory Documents]{.underline}**

-   Site Treatment Plan - WSRC-TR-94-0608 (latest update)

-   RCRA Part B Permit Renewal Application - WSRC-IM-98-30 (latest
    revision)

-   Federal Facility Agreement (FFA) 1993 for the Savannah River Site,
    Administrative Document Number 89-05-FF, Effective Date: August 16,
    1993, WSRC-OS-94-42.

-   Construction Permit Application for F and H High Level Waste Tank
    Farms - 6000-44-3190W Rev 0 dated 4/16/91 as amended

-   Industrial Wastewater Closure Module for High Level Waste Tank 20
    System, Rev1 -- dated 1/8/97

-   Industrial Wastewater Closure Module for High Level Waste Tank 17
    System, Rev2 - dated 8/26/97 WSRC-TR-97-0066

-   Waste Management Environmental Impact Statement

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-   Defense Waste Processing Facility Final Supplemental Environmental
    Impact Statement DOE/EIS-0082-S

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-   High Level Waste Tank Closure Final Environmental Impact Statement,
    DOE/EIS-0303 dated May 2002

-   Industrial Wastewater Closure Plan for F- and H-Area High Level
    Waste Tank System WSRC-2003-00498 dated August 16, 2004

-   Savannah River Site Salt Processing Alternatives Supplemental
    Environmental Impact Statement DOE/EIS-0082-S2, June 2001

**[Authorization Basis]{.underline}**

-   Disposal Authorization Statement for the Department of Energy
    Savannah River Site E-Area and Saltstone Disposal Facilities,
    September 28, 1999

-   Composite Analysis, WSRC-RP-97-311

-   Addendum to the Composite Analysis for the E-Area and Saltstone
    Disposal Facilities, March 28, 2002

-   WSRC-SA-6, Rev. 22, July 2004, "Final Safety Analysis Report
    Savannah River site Defense Waste Processing Facility"

-   WSRC-TS-95-0019/S-TSR-S-00001, Rev. 29, July 2004, "Technical Safety
    Requirements Defense Waste Processing Facility"

-   WSRC-RP-99-00663, Rev. 7, "Authorization Agreement for the Defense
    Waste Processing Facility"

-   S-EHA-S-00001, Rev. 6, "Emergency Preparedness Hazards Assessment
    for the Defense Waste Processing Facility"

-   WSRC-SA-2002-00007, Rev. 2, December 2003, "Concentration, Storage,
    and Transfer Facilities Documented Safety Analysis"

-   S-TSR-G-00001, Rev. 8, January 2005, "Concentration, Storage, and
    Transfer Facilities Technical Safety Requirements"

-   WSRC-TR-2003-00083, Rev. 2, October 2004, "Concentration, Storage,
    and Transfer Facilities Justification for Continued Operations"

-   WSRC-RP-2001-00154, "Authorization Agreement for the Concentration,
    Storage, and Transfer Facilities"

-   S-EHA-G-00002, Rev. 6, "Emergency Preparedness Hazards Assessment
    for the Concentration, Storage, and Transfer Facilities"

-   WSRC-SA-2003-00001, Rev. 2, November 2004, "Saltstone Facility
    Documented Safety Analysis"

-   S-TSR-Z-00002, Rev. 1, August 2003, "Saltstone Facility Technical
    Safety Requirements"

-   S-EHA-G-00005, Rev. 0, "Emergency Preparedness Hazards Assessment
    for Saltstone Facility"

-   CBU-ENG-2003-00053, "Radioactive Waste Management Basis for Effluent
    Treatment Facility and Saltstone Process Facilities"

-   WSRC-TR-98-00379, Rev. 8, October 2004, "Auditable Safety Analysis
    for the Effluent Treatment Facility"

-   S-EHA-G-00004, Rev. 3, "Emergency Preparedness Hazards Assessment
    for the Consolidated Incineration Facility, Effluent Treatment
    Facility, and Saltstone Facility"

-   CSTF SER , Rev. 0; letter, Allison to Pedde, \"Concentration,
    Storage, and Transfer Facilities (CSTF) Safety Evaluation Report
    (SER) for the 10CFR830 Compliant Documented Safety Analysis (DSA)
    and Technical Safety Requirements (TSR\'s),\" 12/20/2002, PC-03-008.
    \[there are 13 supplements to this base SER\]

-   DWPF SER, Rev. 2; letter, Allison to Pedde, \"Annual Update of
    Defense Waste Processing Facility (DWPF) Safety Basis Documents and
    Unreviewed Safety Question Evaluation (USQE) Summary Report
    (Supplemental) - 2004,\" 7/29/2004, DC-04-043. \[there are 2
    supplements to this base SER\]

-   Saltstone SER, Rev. 1, Supplement 1; letter, Allison to Pedde,
    \"Submittal of 2004 Annual Update of Saltstone Safety Basis
    Documents and USQE Summary Report (Letter, French to Hansen,
    CBU-WSD-2004-00027, 11/9/2004)

-   Emergency Preparedness Hazard Assessment for the Concentration,
    Storage and Transfer Facilities S-EHA-G-00002, Rev 6 dated 4/2004

-   Emergency Preparedness Hazard Assessment for Consolidated
    Incinerator Facility, Effluent Treatment Facility, and Saltstone
    Facility, S-EHA-G-00004 Rev 3, dated September 2003 S-EHA-G-00002,
    Rev 6 dated 4/200

-   Authorization Agreement for Concentration, Storage, and Transfer
    Facilities WSRC-RP-2001-00154 dated 1/21/2005

-   Liquid Waste System/WS Projects Safety Basis WSRC-IM-94-10 dated
    1/2005

-   Concentration, Storage, and Transfer Facilities Documented Safety
    Analysis WSRC-SA-2002-00007, latest revision as amended

-   Concentration, Storage, and Transfer Facilities Technical Safety
    Requirements, S-TSR-G-00001, latest revision as amended

-   Concentration, Storage, and Transfer Facilities Justification for
    Continued Operations, WSRC-TR-2003-00083, latest revision as amended

**[Program Plans]{.underline}**

-   Defense Waste Processing Facility Glass Production Control Program
    WSRC-IM-91-116-6, Rev. 2

-   High Level Waste System Plan -- Rev. 13 HLW-02002-00025

-   PMP Supplement to the High Level System Plan -- Rev 13 -- HLW --
    2002-00161

-   Environmental Commitment Matrix For High Level Waste by David Chew

(No Number, on WSRC HLW Shrine Page)

-   Tank 17 and Tank 20 Closure Errata CBU-PIT-2004-00010 dated
    12/17/2004

-   F/H Tank Farms Waste Compliance Plan for Transfers to the Effluent
    Treatment Facilities, WSRC-TR-99-00009, latest revision as amended

-   CSTF Corrosion Control Program, WSRC-TR-2002-000327 dated 12/3/2004

-   CSTF Evaporator Feed Qualification Program, WSRC-TR-2003-00055 dated
    4/14/2004

-   CSTF Flammability Control Program, WSRC-TR-2003-00087 dated 1/4/2005

-   CSTF Transfer Control Program, WSRC-TR-2002-000403 dated 2/3/2005

-   CSTF Waste Characterization, WSRC-TR-2003-00048 dated 7/1/2004

-   Waste Characterization System, WSRC-IM-2003-00010 dated 7/1/2004

-   SRS HLW Tank Leak-site Information CBU-LTS-2004-00104, dated 8/2004

-   SRS Environmental Report for 2003, WSRC-TR-2004-00013

-   Work Authorization and Performance Baseline (for HLW) dated 10/2002

-   Interim Strategy for Salt, CBU-PED-2004-00027

-   Salt Waste Determination, DOE-WD-2005-001, "Section 3116
    Determination for Salt Waste Disposal at the Savannah River Site"