...

ESSENCE OF DECOMMISSIONING PLANNING 2/24/2012 REG GUIDE 4.22 (DG-4014)

by user

on
Category: Documents
2

views

Report

Comments

Transcript

ESSENCE OF DECOMMISSIONING PLANNING 2/24/2012 REG GUIDE 4.22 (DG-4014)
2/24/2012
REG GUIDE 4.22
14 Mar 12
(DG-4014)
J. C. Shepherd
Reactor Decommissioning Branch
ESSENCE OF
DECOMMISSIONING PLANNING
 APPLIES DURING OPERATIONAL PHASE
 MONITOR AND SAMPLE TO DEFINE EXTENT OF
CONTAMINATION
 ESTIMATE COST TO REMEDIATE AFFECTED AREA
 THEN EITHER:
 REMEDIATE SOON TO LIMIT FINANCIAL ASSURANCE
 INCREASE FINANCIAL ASSURANCE PER
REGULATIONS TO REMEDIATE LATER
2
DECOMMISSIONING
PLANNING RULE
 EFFECTIVE DECEMBER 17, 2013
 MINIMIZE INTRODUCTION OF
CONTAMINATION
 MONITOR SITE INCLUDING SUBSURFACE
 KEEP IN DECOMMISSIONING RECORDS
 UPDATE FINANCIAL ASSURANCE
3
1
2/24/2012
MINIMIZE CONTAMINATION
 ADDS §20.1406(c)
 OPERATE TO MINIMIZE INTRODUCTION OF
CONTAMINATION TO THE ENVIRONMENT
> PROCEDURES TO REDUCE LEAKS AND SPILLS
> SURVEILLANCE TO FIND THEM PROMPTLY
4
MINIMIZE CONTAMINATION
 FACILITATE DECOMMISSIONING
> REDUCE WASTE GENERATION AS PRACTICAL
> DISPOSE EARLY WHEN PRACTICAL
5
DPR SURVEYS
AND RECORDS
 MODIFIES §20.1501(a) SURVEYS
 EXPLICITLY INCLUDES SUBSURFACE
 DOES NOT CHANGE “NECESSARY
[AND] REASONABLE” SURVEYS
6
2
2/24/2012
DPR SURVEYS AND
RECORDS
 ADDS NEW §20.1501(b)
 RECORD SIGNIFICANT CONTAMINATION IN
RECORDS IMPORTANT TO DECOMMISSIONING
 CONSIDER KEEPING MORE FOR HISTORIC SITE
ASSESSMENT
7
DPR GUIDANCE
 NUREG-1757 V. 3 R. 1
 ISSUED FEBRUARY, 2012
 COMMENTS TO BE INCLUDED WITH THOSE ON
DG-4014
DG
 PLAN TO PAY FOR ACTUAL REMEDIATION
 CHANGES TO REPORTING REQUIREMENTS AND TO
FINANCIAL INSTRUMENTS
8
DPR GUIDANCE
 DRAFT REGULATORY GUIDE DG-4014 (RG-4.22)
 ISSUED FOR COMMENT 13 DEC 2011;
 COMMENTS DUE MARCH 30, 2012
 MINIMIZE NEW CONTAMINATION
 CONDUCT SURVEYS OF SITE
 RETAIN RECORDS OF SURVEYS
9
3
2/24/2012
RG-4.22: CONDUCT
SURVEYS
 SURVEYS PER § 20.1501(a)
 SURFACE


ACCESSIBLE AREAS
NOT READILY ACCESSIBLE
 SUBSURFACE IS EXPLICIT REQUIREMENT


NEAR TO POTENTIAL SOURCES
IN GW FLOW PATHS (DOWNSTREAM)
 NEI-07-07 OBJECTIVES MEET RULE INTENT
10
RG-4.22: KEEP RECORDS
 RECORDKEEPING PER § 20.1501(b)
 RETAIN SURVEY RESULTS WITH “RECORDS
IMPORTANT TO DECOMMISSIONING”
 SIGNIFICANT RESIDUAL RADIOACTIVITY
REQUIRES REMEDIATION AT TIME OF LICENSE
TERMINATION FOR UNRESTRICTED RELEASE

BASES FOR CHARACTERIZATION SURVEYS AT
LICENSE TERMINATION
11
RG-4.22: FINANCES
 UPDATE FINANCIAL ASSURANCE
 DETAILS IN RG-1.159 & NUREG-1757 V. 3 R. 1
 ESTIMATE COST TO REMEDIATE
 SUITABLE REMEDIATION SCHEDULE
 ARRANGE FOR SUFFICIENT FUNDS


§50.75: major factors that could affect the cost
§50.82: site-specific cost estimate
12
4
2/24/2012
GUIDANCE SCHEDULE
 DG-4014 ISSUED FOR 60-DAY PUBLIC COMMENT
PERIOD DECEMBER 13, 2011
 COMMENT PERIOD EXTENDED TO MARCH 30, 2012
 PUBLIC WORKSHOP SPRING 2012
 FINAL GUIDE, RG-4.22, SUMMER 2012
13
REFERENCES
 LICENSE TERMINATION RULE:
62_FR_39058, July 21, 1997
 DECOMMISSIONING PLANNING RULE:
76_FR_35512,
6 FR
JJune 17, 2011
 DRAFT REGULATORY GUIDE 4014:
76_FR_77431, DECEMBER 13, 2011
 NUREG-1757 VOL. 3 REV. 1: ML090850301
14
QUESTIONS ??
15
5
2/24/2012
PROMPT REMEDIATION
14 Mar 12
J. C. Shepherd
Reactor Decommissioning Branch
PROMPT REMEDIATION ?
 STAFF REQUIREMENTS MEMO FOR DPR:
TECHNICAL BASIS FOR NEW RULE TO MANDATE
PROMPT REMEDIATION
 ADDRESS REMEDIATION DURING OPERATIONS
 SEEK PUBLIC COMMENT, HOLD WORKSHOP
 DEFINE CRITERIA TO REQUIRE ACTION
17
SCHEDULE: SRM RESPONSE
 PUBLIC INPUT (WEBINAR) JULY 2011
• PUBLIC COMMENT PERIOD CLOSED SEP. 16
 INTERNAL REVIEW FALL-WINTER 2011-2012
 REPLY TO SRM WITH RECOMMENDATION APRIL 2012
 PROCEED WITH RECOMMENDED ACTION ~2014
18
6
2/24/2012
PROMPT REMEDIATION
ALTERNATIVES (1/2)
 REQUIRE REMEDIAL ACTION BASED ON
 CALCULATED DOSE > PART 20 EXPOSURE LIMITS
 MEASURED CONCENTRATION > 100 MREM/YR
 REQUIRE ANALYSES AND REMEDIATION PLAN
 MEASURED CONCENTRATION EXCEEDS

SOIL SCREENING VALUES OR MCLs

EFFLUENT DISCHARGE LIMITS OR 2X SOILS SCREENING
19
PROMPT REMEDIATION
ALTERNATIVES (2/2)
 POLICY TO ADDRESS SPECIFIC SITE CONDITIONS
 ORDER
 AMEND LICENSE
 KEEP CURRENT PRACTICE – CASE-BY-CASE
20
REFERENCES
 SRM-SECY-07-0177: ML073440549
 “WEBINAR”: 76 FR 42074
 DRAFT PROPOSED TECHNICAL BASIS: ML111580353
5 353
21
7
2/24/2012
QUESTIONS
J. C. Shepherd, Project Engineer
Reactor Decommissioning Branch
Division of Waste Management and
Environmental Protection
US NRC
301-415-6712
[email protected]
22
8
Fly UP