Closure Report for the 92-Acre Area and Corrective Action Unit 111: Area 5 WMD Retired Mixed ...

111 Pages·2012·13.04 MB·English

by  Bechtel Nevada User

RECORD OF TECHNICAL CHANGE
Technical Change No. DOE/NV-1472 ROTC-1____________________________ Page I of___1
Activity Name Soils CAU 111. Area 5 WMD Retired Mixed Waste Pits_________ Date April 25.2016
The following technical changes (including justification) are requested by:
Jaclvn Petrello__________________________________ Surveillance & Maintenance Task Lead
(Name) (Title)
Description of Change:
Post-closure monitoring requirements described in the Closure Report for CAS 05-21-01, Mixed Waste Pits arc managed
within the Nevada National Security Site (NNSS) Resource Conservation and Recovery Act (RCRA) Permit. Permit
requirements supersede requirements identified in the Closure Report. See the current RCRA Permit for post-closure
monitoring requirements.
Justification:
Post-closure monitoring requirements for this CAS arc managed through the RCRA Permit, which is renewed every 5
years. Post-closure monitoring requirements arc described in that permit.
The task time will be (Increased) (Decreased) (Unchanged! by approximately_________ Q____________ days.
Applicable Activity-Specific Document(s):
Closure Report for the 92-Acre Area and Corrective Action Unit 111: Area 5 WMD Retired Mixed Waste Pits, Nevada
National Security Site, Nevada. Revision 0, DOE/NV-1472, February 2012
Isl Signature on file
Approved By: Date
Isl Signature on file
Date ^
EM Operations Manager
Isl Signature on file
Date
NDE?
r >
Nevada DOE/NV--1472
Environmental
Restoration
National Nuclear Security Administration
Project
Closure Report for the 92-Acre Area and
Corrective Action Unit 111: Area 5 WMD
Retired Mixed Waste Pits, Nevada
National Security Site, Nevada
Controlled Copy No.:
Revision: 0
February 2012
Environmental Restoration
Project
U.S. Department of Energy
National Nuclear Security Administration
^^^^^^^^^^^^NevadaSiteOffice
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DOE/NV--1472
CLOSURE REPORT FOR THE 92-ACRE AREA AND
CORRECTIVE ACTION UNIT 111:
AREA 5 WMD RETIRED MIXED WASTE PITS,
NEVADA NATIONAL SECURITY SITE, NEVADA
U.S. Department of Energy
National Nuclear Security Administration
Nevada Site Office
Las Vegas, Nevada
Controlled Copy No.
Revision: 0
February 2012
THIS PAGE INTENTIONALLY LEFT BLANK
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CLOSURE REPORT FOR THE 92-ACRE AREA AND
CORRECTIVE ACTION UNIT 111:
AREA 5 WMD RETIRED MIXED WASTE PITS,
NEVADA NATIONAL SECURITY SITE, NEVADA
AnrrvxccHx: ^ Jh0A T Carilli D,tc.
Uhon T. Carilli
Federal Sub-Project Director
LLW Sub-Project
Scott Wade
Janet L. Appenzeller-Wing
Deputy Assistant Manager
Environmental Management
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92-Acre Area and CAU 111
Closure Report
Section: Table of Contents
Revision: 0
Date: February 2012
TABLE OF CONTENTS
ACRONYMS AND ABBREVIATIONS...........................................................................................................vii
EXECUTIVE SUMMARY................................................................................................................................ix
1.0 INTRODUCTION..........................................................................................................................................1
1.1 Purpose...............................................................................................................................................1
1.2 SCOPE ................................................................................................................................................. 1
1.3 Closure Report Contents...............................................................................................................1
1.3.1 Applicable Programmatic Plans and Documents...................................................................4
1.3.2 Data Quality Objectives..........................................................................................................4
1.3.3 Data Quality Assessment........................................................................................................4
2.0 CLOSURE ACTIVITIES..............................................................................................................................5
2.1 Description of Corrective Action Activities............................................................................5
2.1.1 Site Preparation......................................................................................................................5
2.1.2 Engineered Cover Construction.............................................................................................5
2.1.3 Temporary Erosion and Sediment Control and Planting Vegetation.....................................6
2.1.4 Monument and Use Restriction Sign Installation....................................................................6
2.2 Deviations from the Plan as Approved......................................................................................6
2.3 Corrective Action Schedule as Completed..............................................................................7
2.4 Site Plan/Survey Plat....................................................................................................................7
3.0 WASTE DISPOSITION...............................................................................................................................9
4.0 CLOSURE VERIFICATION RESULTS....................................................................................................11
4.1 Data Quality Assessment.............................................................................................................11
4.2 Use Restriction...............................................................................................................................11
5.0 CONCLUSIONS AND RECOMMENDATIONS.......................................................................................13
5.1 Conclusions.....................................................................................................................................13
5.2 Post-Closure Requirements.........................................................................................................13
5.2.1 Inspections, Surveys, and Maintenance and Repair.............................................................13
5.2.2 Monitoring.............................................................................................................................15
5.3 Recommendations...........................................................................................................................17
6.0 REFERENCES.............................................................................................................................................19
Library Distribution List
LIST OF FIGURES
Figure 1. Area 5 Radioactive Waste Management Site Location Map..........................................2
Figure 2. 92-Acre Area....................................................................................................................................3
LIST OF TABLES
Table 1. 92-Acre Area Closure Activities Schedule...........................................................................7
Table 2. Post-Closure Requirements and Compliance Criteria for the 92-Acre Area.........14
Table 3. Compliance Criteria for Air Monitoring.............................................................................15
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92-Acre Area and CAU 111
Closure Report
Section: Table of Contents
Revision: 0
Date: February 2012
TABLE OF CONTENTS (continued)
Table 4. Limitations for Groundwater Indicator Parameters....................................... 15
Table 5. Progressive Approach for Vadose Zone Monitoring for the 92-Acre Area 16
APPENDICES
Appendix A. Data Quality Objectives
Appendix B. As-Built Documentation and Closure Certification
Appendix C. Use Restriction Documentation
Appendix D. Site Closure Photographs
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92-Acre Area and CAU 111
Closure Report
Section: Acronyms and Abbreviations
Revision: 0
Date: February 2012
ACRONYMS AND ABBREVIATIONS
cadd/cap Corrective Action Decision Document/Corrective Action Plan
CAU Corrective Action Unit
CFR Code of Federal Regulations
CQA construction quality assurance
CR Closure Report
DQo data quality objective
FFACo Federal Facility Agreement and Consent Order
M-g/L microgram(s) per liter
mg/L milligram(s) per liter
mmhos/cm millimho(s) per centimeter
ndep Nevada Division of Environmental Protection
nnsa/nso U.S. Department of Energy, National Nuclear Security Administration
Nevada Site Office
pCi/L picocurie(s) per liter
pCi/m2s picocurie(s) per square meter per second
pCi/m3 picocurie(s) per cubic meter
RCRA Resource Conservation and Recovery Act
TDR time-domain reflectometry
TLD thermoluminescent dosimeter
UR use restriction
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