ML022970067
| ML022970067 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 10/15/2002 |
| From: | Maine Yankee Atomic Power Co |
| To: | NRC/FSME |
| References | |
| +sisprbs20060109, -nr, -RFPFR | |
| Download: ML022970067 (27) | |
Text
MYAPC License Termination Plan Revision 3
October 15, 2002 MAINE YANKEE LTP SECTION 1 GENERAL INFORMATION MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-i TABLE OF CONTENTS 1.0 GENERAL INFORMATION
............................................
1-1 1.1 Introduction
....................................................
1-1 1.2 Operating and Decommissioning History
.............................
1-1 1.3 Plant Description
................................................
1-4 1.4 LTP Submittal Change and Early Release of Land
......................
1-5l1.4.1 LTP Submittal and Changes
.................................
1-5 1.4.2 Phased Release and License Termination
.......................
1-7 1.5 Plan Description
.................................................
1-9 1.5.1 General Information
........................................
1-9 1.5.2 Site Characterization
.......................................
1-9 1.5.3 Identification of Remaining Site Dismantlement Activities
.........1-9 1.5.4 Remediation Plans
........................................
1-11 1.5.5 Final Status Survey (FSS)
..................................
1-11 1.5.6 Compliance With the Specified Radiological Criteria for License Termination
.............................................
1-12 1.5.7 Update of the Site-Specific Decommissioning Costs
.............
1-12 1.5.8 Supplement to the Environmental Report
......................
1-12 1.5.9 Special Agreement With Friends of the Coast - Opposing Nuclear Pollution................................................
1-14 1.6 Maine Yankee LTP Information Contact
.............................
1-16 1.7 References
....................................................
1-16 Figure 1-1 Location of Population Centers With Respect to Location of Maine Yankee ATTACHMENT 1A Maine Yankee Decommissioning Supplementary Radiological Characterization and Analysis Agreement MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-1 1.0 GENERAL INFORMATION 1.1 Introduction This License Termination Plan (LTP) has been prepared by the Maine Yankee Atomic Power Company (MYAPC) nuclear power plant located at 321 Old Ferry Road, Wiscasset Maine, 04578. For the location of the plant with respect to population centers
see Figure 1-1. The site boundary is defined in MYAPC Defueled Safety Analysis Report (DSAR) Figure 2.1-1. In accordance with requirements of 10 CFR 50.82(a)(9), the LTP
has been prepared and submitted as a supplement to the DSAR and is intended to support
an application for amendment of license number DPR-36; Docket Number 50-309. An
application for amendment of the license has been provided to facilitate lauthorization/approval of the LTP as required by 10 CFR 50.82(a)(9).
The license condition includes a LTP change process similar to that required for the DSAR. The LTP will be updated in accordance with 10 CFR 50.71(e).
1.2 Operating and Decommissioning History The plant is owned by a consortium of 10 New England electric utilities representing consumers in Maine, New Hampshire, Vermont, Massachusetts, Connecticut and Rhode
Island. It began commercial operation in December 1972 under Atomic Energy
Commission Docket No. 50-309, License No. OL-FP DPR-36, and last operated in
December 1996 (Certification of cessation of operation under 10 CFR50.82(a)(1)
submitted August 7, 1997). Over its lifetime, the plant operated for a total of
approximately 16 effective full power years based on its rated thermal power. The Maine
Yankee board of directors voted to permanently cease further operation and
decommission the plant in August 1997. On August 27, 1997, Maine Yankee submitted
the Post Shutdown Decommissioning Activities Report (PSDAR). On November 6,l1997, a public meeting was held in Wiscasset to hear public comments on the PSDAR.
On November 3, 1998, Maine Yankee submitted the Site-Specific Decommissioning Cost
Estimate along with a PSDAR Update.
On October 20, 1997, Maine Yankee submitted a request to revise the Technical Specifications to reflect the permanently defueled status of the plant. On March 30, 1998, the Nuclear Regulatory Commission (NRC) issued Amendment #161 approving those
revised Technical Specifications. This amendment revised the Maine Yankee Technical
Specifications to reflect the permanently defueled condition of the plant, and regulatory
requirements and operating restrictions to ensure the safe storage of spent fuel.
The Final Safety Analysis Report (FSAR) was revised to reflect the permanently defueled plant condition and was re-titled "Defueled Safety Analysis Report" (DSAR). The DSAR MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-2 was submitted to the NRC on February 6, 1998 and has since been revised in accordance with 10 CFR 50.71(e). Additional licensing basis documents were also revised and
submitted to reflect the plant's defueled condition (Defueled Security Plan, Fire
Protection Plan, QA Plan, Training Plan and Emergency Plan).
On January 13, 2000, Maine Yankee submitted the original version of the LTP in accordance with 10 CFR 50.82(a)(9). This submittal was preceded by meetings with the
NRC and other federal, state and local stakeholders. Draft copies of the Maine Yankee
LTP had been circulated and docketed to enhance dialogue and encourage feedback. On
March 16, 2000, the NRC completed its acceptance review of the LTP and determined
that the LTP provides sufficient information for the staff to proceed with its detailed
technical review. Accordingly, a public meeting was held at the Wiscasset High School
on May 15, 2000 to solicit public comments. On May 17, 2000, the NRC published
notice of the license amendment application proposing to authorize the LTP in the
Federal Register (65FR31357-31358).
In an effort meet stakeholder expectations that site cleanup be conducted to the highest lreasonable standards and beyond current federal regulatory requirements if feasible,lMaine Yankee made a commitment in the original LTP preface to achieve a clean up of the site to a dose of less than 10 mrem for all pathways and less than 4 mrem to
groundwater pathway. Nevertheless, on April 26, 2000, the Governor of the State of
Maine signed into law LD 2688-SP1084 "An Act to Establish Clean-up Standards for
Decommissioning Nuclear Facilities." This legislation amended the Maine State
definition of Low Level Radioactive Waste to exclude, from that definition, radioactive
material remaining at the site of a decommissioned nuclear power plant if the enhanced
state standards described in the new law are met. These enhanced state standards include
dose-based residual radioactivity limits of 10 mrem/year (mrem/yr) or less for all
pathways and 4 mrem/year or less for groundwater drinking sources and other limits for
construction demolition debris. Prior to the passage of this legislation, on April 14, 2000, Maine Yankee had signed an agreement with several Maine groups to support this
legislation and to fulfill our mutual intent to reduce the radiological burden at the Maine
Yankee site. These groups included "Safe Power for Maine," "Citizens Against Nuclear
Trash," "Friends of the Coast - Opposing Nuclear Pollution" ("Friends of the Coast"), and
the Town of Wiscasset. The implementation of the state law and the agreement identified labove are both described in detail in Section 6 of this LTP.
In a letter dated May 9, 2000, the NRC requested that Maine Yankee describe what action it would take in response to the new state legislation. In a letter dated June 8, 2000, Maine Yankee generally explained the expected impact of the newly enacted legislation
and indicated that Maine Yankee was continuing a dialogue with state agencies and other
stakeholders concerning the end state of the site, verification of cleanup to state standards
and other issues.
MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-3 1"Revised LTP" or "original LTP" will be used in the text where needed for clarity; however, in general, "LTP" is intended to mean the revised LTP in all references in this document subsequent to
this point.
On June 15, 2000, the Friends of the Coast submitted a petition to intervene and a request for a hearing. On June 16, 2000, the State of Maine submitted a petition to intervene and
a request for a hearing or, alternatively, to participate as an interested state. Accordingly, on July 7, 2000, an Atomic Safety and Licensing Board (ASLB) was established. During
a telephone conference on July 20, 2000 with the participants in the LTP license
amendment proceeding, Maine Yankee stated that it intended to submit a revised LTP
addressing a number of new matters and suggested that the proceeding be held in
abeyance until the revised LTP is filed. The other participants generally agreed with this
suggestion. Accordingly, on July 20, 2000, the ASLB issued an order for, among other
things, Maine Yankee to file a revised LTP by October 31, 2000 or on November 1, 2000
submit a status report.
During the summer and fall of 2000, Maine Yankee received over 400 comments on the LTP from a range of stakeholders. Many of these comments led to changes which have
been included in Revision 1 to the LTP
- 1. In addition, Maine Yankee initiated and participated in two facilitated stakeholder meetings on decommissioning topics including the disposition of above grade concrete. As a result of these meetings, Maine Yankee
agreed to remove and dispose of offsite the concrete debris which results from the
demolition of buildings above three feet below grade. The effects of this agreement have
led to additional changes to dose models, final status survey methodology, ALARA
evaluations, and dismantlement activities which have been included in this revised LTP.
On October 31, 2000, Maine Yankee submitted to the NRC a status report including Maine Yankee's current best estimated schedule for submitting the revised LTP and
progress in settling outstanding matters with stakeholders. Efforts associated with
incorporating the above agreements and stakeholder comments resulted in the call for
additional data collection and analysis. Based on these efforts and the desire to continue
a responsive dialogue with stakeholders, Maine Yankee estimated that the revised LTP
would be submitted to the NRC by April 15, 2001. On January 29, 2001 and April 3,l2001, Maine Yankee submitted status reports updating the Board on Maine Yankee's linteractions with stakeholders. In the latter report, Maine Yankee extended the revised lLTP submittal schedule to June 1, 2001. Accordingly, on June 1, 2001, Maine Yankee lsubmitted LTP Revision 1.
lOn October 13, 2000 and again on February 5, 2001, the NRC issued requests for additional information (RAI). On August 8, 2001 (following the issuance of Revision 1 of lthe LTP on June 1, 2001), Maine Yankee submitted responses to the NRC RAIs of l
MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-4 October 13, 2000 and February 5, 2001. Many of the RAI issues were incorporated, as lappropriate, into Revision 1 of the LTP.
llOn June 8, 2001, Maine Yankee submitted a joint request to the ASLB for a ten-week lperiod for LTP settlement discussions. On July 12, 2001, Maine Yankee provided lresponses to the State of Maine and Friends of the Coast comments and questions on the lLTP. On August 13, 2001, Maine Yankee submitted LTP Revision 2 incorporating many lof the remaining NRC, State of Maine and Friends of the Coast issues, as appropriate. On lAugust 31, 2001, the State of Maine, Friends of the Coast, and Maine Yankee reached a lSettlement Agreement (SA) related to the ASLB issues. The SA eliminated the need for lan ASLB hearing and established a framework for the Parties to resolve the remaining lissues. On October, 2, 2001, the ASLB issued an order approving the Settlement lAgreement and terminating the proceeding.
llOne item of the SA was the establishment of a Technical Issue Resolution Panel (TIRP).
lThe TIRP consisted of two members each from the State of Maine and Maine Yankee.
lThe TIRP met several times between September 26 2001 and December 13, 2001. On lDecember 13, 2001 the Team reached consensus on the five issues on it's agenda, and lissued a Participant Settlement Agreement. The results of the TIRP consensus have been lincorporated in Revision 3 of the LTP.
llOn December 18, 2001 and January 17, 2002, the NRC issued a further round of RAIs on lLTP Revision 2. On March 13, 2002, Maine Yankee responded to the RAIs. As lappropriate, the resolution of the RAIs are incorporated in Revision 3 of the LTP.
ll1.3 Plant Description The plant is a three-loop pressurized water reactor with a power rating of 2,700 Megawatts thermal. It has a Nuclear Steam Supply System supplied by Asea Brown
Boveri/Combustion Engineering. The secondary plant consists of three Asea Brown
Boveri turbines, one high pressure and two low pressure, coupled with a 950 MVA
Westinghouse electric generator and associated auxiliary systems. The site also includes
ancillary facilities used to support normal plant operations. These facilities consist of
warehouses, administrative office buildings, security structures, an environmental
sampling complex, a substation and a fire protection system.
The plant is located on an 820-acre site in Lincoln County, Wiscasset, Maine as indicated in Figure 1-1. The site boundary is indicated in DSAR Figure 2.1-1. This location is
approximately 0.43 miles from the nearest residence and is within 5 miles of the nearest
population center, Town of Wiscasset, as shown in Figure 1-1.
MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-5 1 LD 2688-SP 1084, "An Act to Establish Clean-up Standards for Decommissioning Nuclear Facilities," enacted on April 26, 2000.
1.4 LTP Submittal Change and Early Release of Land l1.4.1 LTP Submittal and Changes Maine Yankee is submitting this LTP as a supplement to the Defueled Safety Analysis Report. Upon NRC approval, Maine Yankee's license will authorize
and require Maine Yankee to implement and maintain in effect all provisions of
the approved LTP. This license termination plan describes an acceptable
approach for demonstrating compliance with the radiological criteria for
unrestricted use, as defined by 10 CFR 20.1402, by meeting a site release criteria
of 10 millirem TEDE per year over background (all pathways) and 4 millirem (as
distinguishable from background) TEDE per year for groundwater sources of
drinking water using appropriate dose modeling methods, pathways and
parameters and acceptable final radiation survey methods. The LTP describes
dose modeling methods, pathways and parameters which produce derived
concentration guideline levels (DCGL's) for a given dose based release criteria.
The LTP also describes the final radiation survey methods to demonstrate
compliance with the DCGL's. The dose based release criteria used in the LTP is
the site release criteria, namely 10 millirem TEDE per year over background (all
pathways) and 4 millirem (as distinguished from background) TEDE per year for
groundwater sources of drinking water in accordance with state law.
1 While it is understood that NRC may not agree with or adopt this criteria, it is expected that NRC will be confirming that compliance with NRC regulations is being
demonstrated by meeting this site release criteria. Maine Yankee will certify in its
application for license termination that it has met this site release criteria (10/4)
and will at that time request NRC to confirm this certification.
Changes requiring NRC approval will be submitted via application for a license amendment in accordance with 10 CFR 50.90.
Pursuant to license condition 2.B (10) of Maine Yankee's Facility Operating lLicense No. DPR-36, the licensee may make changes to the LTP without prior lapproval provided the proposed changes do not:
a.Require Commission approval pursuant to 10 CFR 50.59; b.Violate the requirements of 10 CFR 50.82(a)(6);
MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-6 c.Reduce the coverage requirements for scan measurements; d.Increase the radioactivity level, relative to the applicable derived concentration guideline level, at which an investigation occurs; or e.Increase the probability of making a Type I decision error.
Maine Yankee will submit an updated License Termination Plan in accordance with 10 CFR 50.71(e).
Items a and b of the above LTP change criteria regarding 10 CFR 50.59 and l50.82(a)(6) are established in current regulation. Item c regarding the coverage lrequirements for scan measurements, is established in LTP Section 5.4.1, Table 5-l3. Item d regarding investigation levels, sets a limit on the action thresholds that lwould trigger an investigation. These thresholds are specified in LTP Section 5.6,lTable 5-7. Item e limits the probability of releasing a survey unit, which contains lresidual radioactivity above the release criterion. This probability value is ldiscussed in LTP Section 5.4.2 and 5.8.1.
lAs appropriate, Maine Yankee will evaluate changes to the LTP using the Data Quality Objective (DQO) process outlined in NUREG-1575, "Multi Agency
Radiological Survey and Site Investigation Manual" and/or the considerations
described in section 3.2. Changes to the LTP not requiring NRC approval will be
submitted as an updated supplement to the DSAR in accordance with
In addition to the above license condition LTP change criteria, Maine Yankee will lnotify the State of Maine promptly prior to making a change to the LTP that lwould result in an increase, of any amount, in a Derived Concentration Guideline lLevel (DCGL) and will request NRC approval if a change to the LTP would lresult in an increase in a DCGL, as specified in Table 6-11, by more than a factor lof two. Note that any DCGL increase is only allowable provided the resulting l"Total Annual Dose" remains less than or equal to10 mrem/y and the "Drinking lWater" (dose) remains less than or equal to 4 mrem/y (as presented Table 6-11).
lIn other words, the individual contaminated material DCGLs listed in Table 6-11 lmust always collectively result in a total annual dose of 10 mrem/y or less and a ldrinking water dose of 4 mrem/y or less. As discussed above, Maine Yankee will lcertify in its application for license termination that it has met this site release lcriteria (pursuant to license condition 2.B (10) of Maine Yankee's Facility lOperating License).
l MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-7 In the event that Maine Yankee elects to reduce a survey unit's classification as llisted in Section 5, i.e., from Class 1 to Class 2 or 3, or from Class 2 to 3, prior lnotification will be provided to the NRC. Criteria for reclassification is discussed lin Section 5.6.4. Maine Yankee will provide the NRC as much early notice of lthis decision as practical but not less than two weeks. (See Reference 1.7.16.)
ll1.4.2 Phased Release and License Termination Maine Yankee will make changes to the site boundary footprints to allow unrestricted release and license termination of parcels of property. The following
process will be used for making these changes:
a.Following the completion of LTP activities in a given area, Maine Yankee will provide to the NRC a license amendment request
covering the area which it seeks to release from the Part 50 license.
This report will contain the information which the NRC needs to
make a determination similar to 10 CFR 50.82(a)(11) and will
include: 1.A description of the boundaries associated with the area to be released.
2.A statement that the remaining dismantlement activities for the affected area described in the license termination plan
have been performed.
3.Final Status Survey (FSS) results for the area. FSS is not required for non-impacted areas.
4.An evaluation of the potential for possible re-contamination of the area and a description of the specific controls
established to prevent re-contamination.
5.An evaluation of the impact on the exclusion area for the site lands remaining within the domain of the Part 50
license.6.An evaluation of the potential combined dose effects on the critical group at license termination as a result of partial
releases of land MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-8 7.An evaluation of the impact on the following license programs for the site lands remaining within the domain of
the Part 50 license: Offsite Dose Calculation Manual (ODCM), Emergency Plan, Security Plan, Fire Protection
Plan, QA Plan, Training Plan, DSAR, and Post Shutdown
Decommissioning Activities Report (PSDAR).
8.A no significant hazards determination evaluation.
This process has been informed by NRC Regulatory Issue Summary 2000-19 "Partial Release of Reactor Site for Unrestricted
Use Before NRC Approval of the License Termination Plan."
Upon satisfactory NRC review, the NRC will provide a license amendment to Maine Yankee that the NRC has made the required
10 CFR 50.82(a)(11) and 50.91 determinations regarding the area
to be released from the Part 50 license and that the area is
henceforth released from the Part 50 license. This license
amendment will carry the same authority as that associated with
terminating a license under 10 CFR 50.82(a)(11).
b.Once an area is so released, it is understood that the NRC will not require additional surveys or decontamination of these areas by
Maine Yankee in response to future NRC criteria or standards, new
information or third party survey results, unless, similar to
10 CFR 20.1401(c), the NRC determines that the criteria of
10 CFR Part 20, Subpart E were not met and residual activity
remaining at the site could result in significant threat to public
health and safety. With regard to each release, Maine Yankee will
work with the NRC and the State of Maine in facilitating
confirmatory surveys.
c.Maine Yankee anticipates a three-phased release of land from the loperating license:
- 1. Approximately 641 acres of land associated with the Eaton lFarms and the land north of Ferry Road. A portion of this lland will be transferred for the purpose of an environmental lcenter in accordance with the FERC rate case settlement.
l
Reference:
Maine Yankee to USNRC letters dated August l16, 2001 (MN-01-034) Early Release of Backlands l
MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-9 (Combined), Proposed Change No. 211, Supplement No. 1,land November 19, 2001 (MN-01-044) same subject,lProposed Change No. 211, Supplement No. 2.
lApproval: The NRC provided approval of the subject lrequest for release of site lands by issuance of the license lamendment granted by the NRC letter to Maine Yankee,ldated July 30, 2002, Issuance of Amendment No. 167.
l2. The remainder of the site not associated with the ISFSI l3. The portion of the site associated with the ISFSI l1.5 Plan Description 1.5.1 General Information This section summarizes each of the seven (7) LTP sections required by 10 CFR 50.82(a)(9)(ii).
1.5.2 Site Characterization Section 2 summarizes the radiological surveys that have been conducted to characterize the nature and extent of contamination at Maine Yankee.
A site radiological characterization was performed to support decommissioning planning during November 1997 through March 1998. This resulted in GTS lDuratek's "Characterization Survey Report for the Maine Yankee Atomic Power lPlant." Following the initial characterization effort, additional data was required land collected (referred to as "continuing characterization), as discussed in Section l2.1. The additional ("continuing") characterization will continue to be performed las required during the term of the decommissioning project. The site characterization results have been and will be used to identify areas of the site that lare likely to require remediation, to plan remediation strategies, and to support final status survey and dose assessment activities.
1.5.3 Identification of Remaining Site Dismantlement Activities Section 3 presents the sequence of dismantlement and decontamination (D&D) activities for the remaining systems, structures, and components at Maine Yankee.
MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-10 The overall project schedule identifies the remaining site dismantlement activities.
These activities include: (1) the removal of structures to increase the free area
needed for large vehicles and equipment; (2) commodity removal;
(3) decontamination and remediation; (4) movement of spent fuel to dry storage;
and (5) demolition of structures to three feet below grade. The extent to which
these activities are expected to be conducted under 10 CFR 50.59 is described.
The final state of the site, including any underground remnants, is also described.
The strategies for disposal of waste generated during decommissioning are discussed including the disposition of the materials from above grade structures
which will be demolished. These strategies include the removal of radioactive
material from the site in order to meet the radiological release criteria of
10 CFR 20.1402 and the state clean-up standards. These state clean-up standards
specify, among other things, that any construction demolition debris (CDD),
including concrete, disposed of at the site meets the limits specified in Table 1 in
the 1974 United States Atomic Energy Commission (AEC) Regulatory
Guide 1.86. However, Maine Yankee does not expect to dispose of CDD on site.
This section also includes: estimates of the quantity of radioactive material to be released; control mechanisms; and radioactive waste characterization.
A detailed description of the coordination of activities, requirements, permits and licenses covered by other regulatory agencies is included. These activities, requirements, permits and licenses include Comprehensive Environmental
Response, Compensation and Liabilities Act (CERCLA), Resource Conservation
and Recovery Act (RCRA), Site Location of Development Permitting, Natural
Resources Protection Act (NRPA), Solid Waste Storage and Disposal Permits, Hazardous Waste Storage and Disposal Permits, National Pollution Discharge
Elimination System (NPDES) Permits, Waste Discharge Licensing, Tank Closure
Certification, Stormwater Management, Erosion and Sedimentation Control, Asbestos and PCB characterization and remediation, Noise Regulations, Air
Emissions License, etc. These efforts involve coordination between Maine
Yankee and other stakeholders including: the Maine Department of
Environmental Protection, the Maine Department of Human Services including
the State Nuclear Inspectors, the Governor's Nuclear Safety Advisor, the
Governor's Technical Advisory Panel, the Advisory Committee on Radiation and
Nuclear Waste, etc. In addition to describing the coordination of the efforts
described above, this section of the LTP also describes the various agreements
between Maine Yankee and the State of Maine and other parties.
For the purpose of this LTP, it is assumed that the installation and operation of an Independent Spent Fuel Storage Installation will be conducted, separate from the MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-11 LTP, under a general license which has already been issued in accordance with 10 CFR 72.210. However, the decommissioning of the ISFSI is described in this
section. If Maine Yankee submits an application for a 10 CFR Part 72 specific
license, this LTP will be revised to eliminate from its scope the decommissioning
of the ISFSI.
1.5.4 Remediation Plans The methods used to reduce the levels of radioactivity to meet the radiological release criteria of 10 CFR 20.1402 (Radiological Criteria for Unrestricted Use)
and the enhanced state cleanup standards are described in Section 4. The
calculations used to verify that the residual activity levels have been reduced to
levels that are as low as reasonably achievable (ALARA) are presented. These
calculations, and the applied methodology generally conform to the guidance
provided in Draft Regulatory Guide DG-4006 or as superceded by NUREG-1727, "NMSS Decommissioning Standard Review Plan (SRP) [Demonstrating
Compliance with the Radiological Criteria for License Termination]."
1.5.5 Final Status Survey (FSS)
Section 5 of this LTP describes the methods that will be used by Maine Yankee to demonstrate that residual contamination levels at the plant site have been reduced
to levels below the site release criteria. The derived concentration guideline (DCGL) is calculated in Section 6 of this LTP and represents the residual
contamination levels that will result in a Total Effective Dose Equivalent (TEDE)
to the average member of the critical population group that is less than 25 mrem
per year in accordance with the radiological release criteria of 10 CFR 20.1402
and less than the enhanced state clean-up standards of 10 mrem per year from all
pathways and 4 mrem per year from groundwater sources of drinking water. The
methods for conducting the final status survey generally follow the guidance in
Draft Regulatory Guide 4006 or as superceded by the Standard Review Plan (SRP). NUREG-1575 (Multi-Agency Radiation Survey and Site Investigation
Manual [MARSSIM]) is also used to the extent it is referenced in DG-4006 as
appropriate. Additional sections of NUREG-1575 are followed as required for
specific applications. The FSS plan describes methodology for the division of the
site into survey units, the classification of survey areas, and the requirement that
all survey units meet the DCGL with a 95% confidence level. Survey areas have
been classified. These survey areas will be divided into survey units as work
progresses. Management controls over all aspects of the project are discussed in
detail, including quality assurance, data processing, and final status survey reports.
MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-12 1.5.6 Compliance With the Specified Radiological Criteria for License Termination Section 6 of the LTP describes the methods used for conducting a dose assessment to develop the DCGLs for demonstrating compliance with the
unrestricted use criteria in Subpart E of 10 CFR 20 and the enhanced state clean-
up standards established by State of Maine Public Law - LD 2688-SP 1084.
10 CFR 20.1402, "Radiological Criteria for Unrestricted Use," allows termination/amendment of a license and release of a site for unrestricted use if the
residual radioactivity that is distinguishable from background radiation results in a
total effective dose equivalent to an average member of a critical group that does
not exceed 25 mrem per year and the residual radioactivity has been reduced to
levels that are ALARA. The enhanced state cleanup standards require that the
residual radioactivity distinguishable from background radiation will result in a
total effective dose equivalent to an average member of a critical group not more
than 10 mrem/year for all pathways and 4 mrem/year for groundwater sources of
drinking water. In addition, the enhanced state cleanup standards require that any
construction demolition debris, including concrete, disposed of at the site meet the
limits of Table 1 in the 1974 AEC Regulatory Guide 1.86.
1.5.7 Update of the Site-Specific Decommissioning Costs Section 7 provides an updated estimate of remaining decommissioning costs and a comparison of these estimated costs with the present funds set aside for
decommissioning. A site-specific decommissioning cost analysis was prepared by
TLG Services in October of 1997. Subsequent to that, a revision to the
decommissioning cost estimate was presented in the MYAPC Site Specific
Decommissioning Cost Estimate, dated November 3, 1998. As decommissioning
activities are initiated and completed, the actual costs are compared against the
estimates previously submitted.
1.5.8 Supplement to the Environmental Report Section 8 satisfies the requirements stated in:
A supplement to the Environmental Report pursuant to 51.53
describing any new information or significant environmental
change associated with the licensee's proposed termination
activities.
MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-13 b.10 CFR 51.53(d)
Post operating license stage. Each applicant for a license amendment authorizing decommissioning activities for a production or utilization facility either for unrestricted use or based
on continuing use restrictions applicable to the site; and each
applicant for a license amendment approving a license termination
plan or decommissioning plan under §§50.82 of this chapter either
for unrestricted use or based on continuing use restrictions
applicable to the site; and each applicant for a license or license
amendment to store spent fuel at a nuclear power reactor after
expiration of the operating license for the nuclear power reactor
shall submit with its application the number of copies, as specified
in §§51.55, of a separate document, entitled "Supplement to
Applicant's Environmental Report -- Post Operating License
Stage," which will update "Applicant's Environmental Report --
Operating License Stage," as appropriate, to reflect any new
information or significant environmental change associated with
the applicant's proposed decommissioning activities or with the
applicant's proposed activities with respect to the planned storage
of spent fuel. Unless otherwise required by the Commission, in
accordance with the generic determination in §§51.23(a) and the
provisions in §§51.23(b), the applicant shall only address the
environmental impact of spent fuel storage for the term of the
license applied for. The "Supplement to Applicant's Environmental
Report -- Post Operating License Stage" may incorporate by
reference any information contained in "Applicants Environmental
Report -- Construction Permit Stage.
The purpose of Section 8 of the LTP is to upgrade the Maine Yankee Environmental Report with any new information or significant environmental
change associated with Maine Yankee's proposed decommissioning/license
termination activities. This section of the LTP constitutes a supplement to Maine
Yankee's Environmental Report pursuant to 10 CFR 51.53(d) and
10 CFR 50.82(a)(9)(ii)(G). In October, 1970, Maine Yankee submitted to the
US Atomic Energy Commission (AEC: NRC's predecessor) its Environmental
Report, which was further appended in February 1971 with supplementary
information. On April 19, 1972, Maine Yankee submitted to the AEC a
"Supplement to Environmental Report." It is this latest supplement which is
being updated by this LTP section pursuant to the above regulations. On
July 1972 the AEC issued the Final Environmental Statement related to the
operation of Maine Yankee Atomic Power Station.
MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-14 Any identified new information or significant environmental change associated with Maine Yankee's proposed decommissioning/license termination activities
has been evaluated to determine whether it is bounded by the site-specific
decommissioning activities described in Maine Yankee's PSDAR or AEC's Final
Environmental Statement. Pursuant to 10 CFR 51.53, this supplement identifies
any changes in Maine Yankee's decommissioning activities as previously
identified in revision of its submittal, and provides the reasons for concluding that
the impacts associated with those changes remain bounded by the Final Generic
Environmental Impact Report Statement (FGEIS), NUREG-0586.
1.5.9 Special Agreement With Friends of the Coast - Opposing Nuclear Pollution a.As a result of its review of the draft revised LTP, Friends of the Coast raised questions regarding the characterization of
radioactivity deposition in off-site marine sediment. The plant
derived activity is the result of licensed plant effluent releases
offsite into the intertidal zone surrounding Bailey Point. A
separate agreement was reached between Maine Yankee and
Friends of the Coast to conduct a special marine sediment study in
the intertidal zone areas with the overall purpose of enhancing
public confidence in the decommissioning process. The key
elements of this agreement, "Maine Yankee Decommissioning
Supplementary Radiological Characterization and Analysis," dated
May 31, 2001, are described in this section. The full text of the
agreement is included as Attachment 1-A to this section.
b.It is recognized that the intertidal zone, beyond the site boundary (per the Maine Yankee DSAR Section 2.1 and DSAR
Figure 2.1-1), is an area subject to the periodic discharge of low
levels of radioactive effluents, released under the plant's operating
license per the regulations governing off-site releases, monitoring, dose assessment, sampling, and reporting [i.e., 10 CFR Part 20, Subpart D, Part 50 Appendix I, and 10 CFR 50.36a(2)]. These
discharges have been made and evaluated in accordance with the
Offsite Dose Calculation Manual and the Radiological Effluent
Monitoring Program which are the principal site administrative
programs that implement the above requirements. Because this
intertidal zone area is beyond the site boundary, addressed by
regulations associated with the Part 50 plant license, and involve
dose commitment to the public already assessed by these programs MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-15 and regulations, the area is not included within the scope of the LTP. c.Regardless of regulatory considerations, Maine Yankee recognizes the community interest in future potential public uses of this area.
Although all measurements to date have identified intertidal zone
levels of radioactivity well below that allowed to be left on-site, Maine Yankee acknowledges a public benefit in enhanced
confidence that can be achieved by additional radiological
characterization of the intertidal zone near the end of
decommissioning.
d.Per the subject agreement, Maine Yankee will work with Friends of the Coast to contract a radiological survey to characterize the
intertidal zone (which is defined in the agreement). This survey is
distinct from and in addition to that formerly agreed upon in the
partial settlement of the FERC rate case settlement which also
provides for a survey of off-site marine sediment (Reference
1.7.12). The intertidal zone characterization will include the "non-
affected" Eaton Farm location as well as Bailey Point (to an agreed
point, south of Ferry Road).
e.The methods and protocols used in the survey are discussed in the agreement. Dose pathways associated with the intertidal zone, considering current and future uses, will be identified and agreed
upon between Maine Yankee and Friends of the Coast. The
characterization results and dose assessment will be reported in a
form to allow comparison to appropriate on-site DCGLs
established in the LTP and to the resident farmer dose. Based on
prior sampling in these areas, Maine Yankee anticipates that the
future surveys will report intertidal zone activities and dose levels
that are well below federal and state limits for site
decommissioning.
f.Maine Yankee and Friends of the Coast will define the survey scope by the end of 2001 and implement the survey following final
liquid discharge from spend fuel pool operations (currently planned
for late in the first quarter of 2003).
g.Results of the characterization will be reported to Maine Yankee and Friends of the Coast. The written report will be publicly
available, and Friends of the Coast will receive sufficient copies to MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-16 disseminate to interested parties and members of the public who request copies.
1.6 Maine Yankee LTP Information Contact For information or comments regarding the Maine Yankee License Termination Plan, please contact the following party:Mr. Thomas L. Williamson
Director, Nuclear Safety and Regulatory Affairs
Maine Yankee Atomic Power Company
321 Old Ferry Road
Wiscasset, Maine 04578
(207) 882-4530
Email: williamt@myapc.com 1.7 References 1.7.1 NUREG-0586, "Final Generic Environmental Impact Statement on Decommissioning of Nuclear Facilities".
1.7.2 NUREG-1496, Generic Environmental Impact Statement in Support of
Rulemaking on Radiological Criteria for License Termination of
NRC-Licensed Nuclear Facilities. 1.7.3 Maine Yankee Environmental Report, dated October 1970 1.7.4"Final Environmental Statement Related To Operation of MY Atomic
Power Station," dated July 1972.
1.7.5 Supplement One to the Maine Yankee Environmental Report, dated
April 19, 1972.
1.7.6 NRC Regulatory Issue Summary 2000-19, "Partial Release
of Site for Unrestricted Use Before NRC Approval of the
License Termination Plan" 1.7.7 GTS Duratek, "Characterization Survey Report for the lMaine Yankee Atomic Power Plant," Volumes 1-9, 1998 l(ICS).l MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-17 1.7.8 NUREG-1727 "NMSS Decommissioning StandardReview Plan," September 15, 2000 1.7.9 NUREG-1575, "Multi-Agency Radiation Survey and Site Investigation
Manual" (MARSSIM), Revision 1 (June 2001) l1.7.10 AEC Regulatory Guide 1.861.7.11MYAPC Site Specific Decommissioning Cost Estimate, November 3, 1998 1.7.12 June 1, 1999 Federal Energy Regulatory Commission approval of rate case
settlement agreement, Docket Nos. ER98-570-000, EL98-13-000, and
EL98-14-00 1.7.13 Post Shutdown Decommissioning Activities Report, Maine Yankee letter lto the NRC, MN-97-99, dated August 27, 1997.
l1.7.14 MYAPC Defueled Safety Analysis Report (DSAR) l l1.7.15 State of Maine Public Law LD 2688-SP1084 "An Act to Establish Clean-lup Standards for Decommissioning Nuclear Facilities", April 26, 2000 l
l1.7.16 NRC letter to Maine Yankee, dated August 23, 2002, "Maine Yankee lAtomic Power Station re: License Termination Plan Issue" (dealing with lsurvey unit reclassification and the PAB test pit issue).
l l1.7.17 NRC letter to Maine Yankee, dated July 30, 2002, Issuance of Amendment lNo. 167, license amendment approving partial release of site lands.
l1.7.18 Maine Yankee letter to the NRC, MN-00-004 dated January 13, 2000,lMaine Yankee License Termination Plan l
l1.7.19 Maine Yankee letter to the NRC, MN-01-023 dated June 1, 2001,lRevision 1, Maine Yankee's License Termination Plan l
l1.7.20 Maine Yankee letter to the NRC, MN-01-032 dated August 13, 2001,lRevision 2, Maine Yankee's License Termination Plan l
l1.7.21 NRC Letter to Maine Yankee, dated December 18, 2001, Request for lAdditional Information (RAI) for Maine Yankee Atomic Power Station lLicense Termination Plan (TAC No. MA8000).
l MYAPC License Termination Plan Revision 3
October 15, 2002 Page 1-18 1.7.22 NRC Letter to Maine Yankee, dated January 17, 2002, Request for lAdditional Information (RAI) for Maine Yankee Atomic Power Station lLicense Termination Plan (TAC No. MA8000).
ll1.7.23 Maine Yankee letter to the NRC, MN-02-011 dated March 13, 2002,lResponse to NRC Request(s) for Additional Information for Maine lYankee Atomic Power Station License Termination Plan l
Location Of Population Centers With Respect T o Location Of Maine Y ankee Figure 1-1 MAINE YANKEE ATOMIC POWER CO.
LICENSE TERMINATION PLAN N Wiscasset Maine Yankee MYAPC License Termination Plan A Revision 3 Page 1 of 6 October 15, 2002 ATTACHMENT 1A Maine Yankee Decommissioning Supplementary Radiological Characterization and Analysis Agreement MYAPC License Termination Plan A Revision 3 Page 2 of 6 October 15, 2002 Maine Yankee Decommissioning Supplementary Radiological Characterization and Analysis Agreement Parties: This is an agreement between Maine Yankee Atomic Power Company (Maine Yankee) and Friends of the Coast - Opposing Nuclear Pollution (Friends of the Coast).
Purpose: The purpose of this agreement is to enhance public confidence in the decommissioning process through an independent, professional, comprehensive and scientifically valid radiological survey of the intertidal area adjacent to the Maine Yankee site.
Background
- Maine Yankee and Friends of the Coast agree that Maine Yankee has been lawfully allowed to discharge low levels of radioactive effluents through its licensed pathways.
W ith that understanding, both parties entered into an agreement (copy attached) as a partial settlement of the 1998 FERC rate case, which included provisions for a survey of off-site marine sediments. The present agreement is in addition to the "FERC agreement" and supplements the License Termination Plan by explicitly recognizing, for the purposes of this agreement, the intertidal zone (defined below) as a separate and distinct element of an elective offsite survey Substance: Maine Yankee agrees to contract a radiological characterization of the intertidal zone (the present "supplemental agreement") supplementing and in addition to the radiological survey of offsite marine sediment (per the "FERC agreement). For purposes of economy and efficiency, Maine Yankee will seek a single contractor for both the offsite marine sediment survey and the intertidal zone survey through a single request for proposal (RFP).
Nothing in this "supplementary agreement" alters the previous "FERC agreement".
The intertidal zone is that offsite area that lies between the site boundary (as described in the Maine Yankee license basis and the License Termination Plan) and the mean low tide mark of adjacent waters (or an outer bound drawn 100 feet from the high tide mark, whichever is closer). The extent of the intertidal zone to be characterized shall include the designated "non-affected" Eaton Farm location as well as Bailey Point (to an agreed upon point south of Ferry Road).
Dose pathways associated with the intertidal zone current and potential future uses will be identified and agreed upon between Maine Yankee and Friends of the Coast.
Characterization results will be used to calculate an incremental intertidal zone dose which may be compared to the limiting "resident farmer" dose calculations in the License MYAPC License Termination Plan A Revision 3 Page 3 of 6 October 15, 2002 Termination Plan. Characterization results will also be reported in a form allowing comparison to on-site DCGLs (e.g., soil) in the License Termination Plan.
Methods and Media
- The intertidal zone characterization will be conducted using agreed upon methods and protocols.
Upon request, Maine Yankee and Friends of the Coast will observe traditional split sampling protocols with interested parties.
The characterization will be accomplished via:
- Sampling and isotopic analysis of disturbed and undisturbed intertidal zone soils/sediments,*Sampling and isotopic analysis of flora and fauna that may reasonably be considered contributors to an intertidal zone pathway dose (e.g., seaweed, shellfish, etc.), and
- Selected gamma scan employing high efficiency (e.g., sodium iodide) detectors, or best practical means, for the purpose of identifying discrete or "hot" particles.
Conditions
- Maine Yankee and Friends of the Coast will work together to define an RFP for a sampling and analysis plan for the intertidal zone, identify qualified independent contractors to receive the RFP, and select a contractor based on the bids received. Maine Yankee reserves the right to: 1) establish a reasonable ceiling on the cost of the supplemental study consistent with accomplishing the purposes of the study and re-bid as necessary to satisfy that constraint, and 2) void this agreement should issues associated with the intertidal zone, as the intertidal zone is defined in this agreement, become admissible contentions before the ASLB.
Maine Yankee and Friends of the Coast agree to develop the RFP by 12/31/2001 and implement the study following final liquid discharge from spent fuel pool operations (approximately 3/2003).
This agreement, if finalized in sufficient time, will be included in the revised License Termination Plan as an attachment to or in Section I and referenced wherever else Maine Yankee deems appropriate. If the agreement is not finalized before submittal of the revised License Termination Plan, a statement of intent will be placed in Section I and a later License Termination Plan supplement will provide the agreement when finalized.
If hot particles that would exceed remediation thresholds on-site are discovered in the "supplemental characterization", hot particle remediation will be undertaken following on-site methods and protocols.
Resul ts of the "supplemental characterization" will be reported to Maine Yankee and Friends of the Coast. The written report will be publicly available and Friends of the Coast MYAPC License Termination Plan A Revision 3 Page 4 of 6 October 15, 2002 will receive sufficient copies to disseminate to interested parties and members of the public who request copies.
Friends of the Coast, assisted by Maine Yankee, will provide an annotated bibliography of historical records, studies, etc. to be included as an appendix in the "supplemental study" report.Agreed by:
Original Signed by Wayne Norton for May 31, 2001 Maine Yankee Date Original Signed by Ray Shadis for May 31, 2001 Friends of the Coast Date