Working Group 2 Safety Assessment Methods and Environmental Impact Assessment for Legacy Sites 11 October 2012.

Working Group 2 Safety Assessment Methods and

Environmental Impact Assessment

for Legacy Sites

11 October 2012

WG 2 Members

• A. Persinko, USA – WG2 Lead• A. Mezrahi, Brazil• K. Ivanova, Bulgaria• Q. Sun, China• M. Gallerand, France• L. Juhasz, Hungary• A. Seitkazieva, Kyrgyzstan• C. Machili, Mozambique• N. Dumitrescu, Romania• O. Voitsekhovych, Ukraine• D. Shafer, USA

Deliverables

• List of Safety Assessment (SA), Environmental Impact Assessment (EIA) and other remediation documents in user friendly form

• Legacy sites (LS) supplementary guidance

• Environmental guidance for LS

• Checklist for reviewer and operator SA and EIA

SA and EIA Documents

• Weblinks/CONNECT

• Sort by origin

• Sort by subject area

• Pyramid – basic to less basic

• Annotated bibliography – coordinate with Shaun Guy

LS Supplemental Guidance

• IAEA documents WS-G-3.1, “Remediation Process for Areas Affected by Past Activities and Accidents” and WS-G-5.2, “Safety Assessment for the Decommissioning of Facilities Using Radioactive Material” cover many aspects of remediation and SA for LS

• Differences between LS and other decommissioning sites/grouping LS sites (U, NORM, accidents, LLW waste sites, other (submarines) (Arnoldo, Oleg)

• LS case studies (1-2 pages per study) (All)– Missing guidance elements– Good/bad practices– Remediation options

LS Supplemental Guidance

• Time aspect – long term, not continuous (David)– Long term plan with graded/phased approach– Update SA at each phase– Monitoring and institutional controls between

each phase.

• Prioritization (Marie)– Immediate actions for health and safety (e.g.,

stabilization; drinking water); for stabilization (prevent problem from getting worse); worker safety

Historic

Site Assessment

Long-term

Platform

Site Characteriz

ation

Remedial Alternatives

As a part of EIA and SA

Implement Remediation

FINISH

Monitoring

& LTSM

IC

Records keeping

Identify Critical Exposures or Sites. Stabilization to address

Workers SafetySA-2

Where objectives met

Are exposure Acceptable

??Safety Assessment (SA-1)

Baseline Exposure- Existing Exposure Situation

Unique to Legacy Sites

Prioritization of Legacy Sites and Actions needed

Phased (graded) Approach to Legacy Sites RemediationHSA Site

Characterization

EIA of Remedial Alternativ

Interim

Actions

Interim

ActionFinish Monitoring

& LTSM

ICs.

Records keeping of data

Identify Critical Exposures Stabilization, Keep conditions

Steps to make site Safe for Work

SA for Existing exposures

Monit, SA ? ICs

Monit, SA ? ICs

WG-2 Uninterrupted D&D/Remediation of Legacy Site (Remediation Cycle)

LS Supplemental Guidance

• List of remediation options (David/Drew)– Will include concepts from IAEA definition of

“remediation”– Long term surveillance and maintenance plan

consistent with IAEA definition of remediation

• Other (Oleg)– site characterization

Environmental Impacts

• Environmental guidance (Drew/David)– Review related IAEA EIA documents– Current IAEA related efforts– Not a complete document– Concepts of alternatives and cost-benefit,

including environmental impacts of no action – Broader scope – not just radiological

materials– Links to safety (e.g., site characterization,

groundwater analysis)

Checklists for SA and EIA

• SA checklist (Kremana, Oleg, Arnoldo)• EIA checklist (Drew)• Purpose

– Consistency of application and review– Completeness– Use by owner/operators – what to include– Use by regulators – completeness and what

to review

• Similar to checklist in WSG 5.2

Summary of WG2 Chapter Contents

• Introduction• Differences between LS and other decommissioning

sites• Groupings of LS sites• LS supplementary guidance

– Time aspect/not continuous– Prioritization– Remediation options– Other

• Environmental guidance• Checklists• LS Case studies • List of LS-related documents

Thanks to the WG-2 Brain Trust!