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S AVANNAH R I V E R S I T E • A I K E N , S C • www. S RRemed i a t i o n . c om

STATUS OF SRS LIQUID WASTE PERFORMANCE ASSESSMENT PROGRAM

December 16, 2015

Kent RosenbergerPerformance and Risk Assessment Community of Practice Annual Technical Exchange

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Performance Assessments

� Performance Assessments (PAs) are required for three SRR LWO facilities• Saltstone Disposal Facility (SDF)

• F-Area Tank Farm (FTF)

• H-Area Tank Farm (HTF)

� PA program is a living thing that is constantly changing – PAs are not items that get put on the shelf and are to be ignored

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Legend:ARP Actinide Removal Process

MCU Modular Caustic Side Solvent Extraction Unit

DWPF Defense Waste Processing Facility

GWSB Glass Waste Storage Building

SWPF Salt Waste Processing Facility

DWPFDWPF

Sludge waste

Tanks Cleaned and Closed

Salt waste

DWPF

(under construction)

Decontaminated Salt Waste

GWSBSaltstone Disposal

Facility

MCU

ARP

SWPF

Salt

Processing

SRS Liquid Waste System

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Saltstone Facilities

8-25-2015

Saltstone ProductionFacility

SDUs 3/5

SDU 2

SDU 4 SDU 1

SDU 6

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� Saltstone Disposal Facility has had a PA and been operating since 1990.

�Timeline on next slide focuses on the last 10 years.

Saltstone Disposal Facility

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SDF Regulatory Timeline

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SDF Regulatory Timeline

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SDF Regulatory Timeline

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Tank 17 – 1997Tank 18 – 2012Tank 19 – 2012Tank 20 – 1997

Tank 5 – 2013Tank 6 – 2013

F-Area Tank Farm

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H-Area Tank Farm

Tank 16 – 2015

Tank 12 – 2016

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Tank Farm Closure Documents

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Tank Farm Closure Documents

NEPA Supplement Analysis

Special Analysis

Composite Analysis

DOE Closure Documentation Tier 1

Waste Determination Basis Document

South Carolina Pollution Control

Act General Closure Plan

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� FTF PA was approved in 2010.

�HTF PA was approved in 2012.

�Tank Farm PAs included assigned inventories at closure for tanks that had not yet been cleaned.

� Performed Special Analyses after each tank completed cleaning and was characterized.

�Timeline reflects last five years of activity.

Tank Farm Closure Documents

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Tank Farm Regulatory Timeline

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Tank Farm Regulatory Timeline

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Tank Farm Regulatory Timeline

F-Tank Farm

H-Tank Farm