DTIC ADA276156: Environmental Baseline Assessment Report. National Oceanic and Atmospheric Administration Research Station, Elmendorf AFB, Anchorage, Alaska

321 Pages·14.8 MB·English

by  Defense Technical Information Center

AD-A276 156
DOcN 93-269-118-08-02
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045
UNITED STATES AIR FORCE
ELMENDORF AIR FORCE BASE, ALASKA
ENVIRONMENTAL RESTORATION PROGRAM
ENVIRONMENTAL BASELINE ASSESSMENT REPORT
NATIONAL OCEANIC AND ATMOSPHERIC
ADMINISTRATION RESEARCH STATION
94-05406
FINAL -
JANUARY 1994
18 O,4(cid:127) This Document was Printed
on 100% Recycled Paper
REPORT DISCLAIMER
NOTICE
This report has been prepared for the United States Air Force for the purpose of aiding
in the implementation of a final remedial action plan under the Air Force Installation
Restoration Program (IRP). As the report relates to actual or possible releases of
potentially hazardous substances, its release prior to an Air Force final decision on
remedial action may be in the public's interest. The limited objectives of this report and
the ongoing nature of the IRP, along with the evolving knowledge of site conditions and
chemical effects on the environment and health, must be considered when evaluating this
report, since subsequent facts may become known which may make this report premature
or inaccurate. Acceptance of this report in performance of the contract under which it is
prepared does not mean that the Air Force adopts the conclusions, recommendations, or
other views expressed herein, which are those of the contractor on1v and do not
necessarily reflect the official position of the United States Air Force.
Copies of this report may be purchased from:
Government agencies and their contractors registered with the Defense Technical
Information Center (DTIC) should direct requests for copies of this report to: Defense
Technical Information Center, Cameron Station, Alexandria, VA 22304-6145.
Non-Government agencies may purchase copies of this document from: National
Technical Information Service (NTIS), 5285 Port Royal Road, Springfield, VA 22161.
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1. AGENCY USE ONLY (Leave blank)I 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED
I January 1994 Final
4. TITLE AND SUBTITLE 5. FUNDING NUMBERS
Environmental Baseline Assessment Report C-F33615-90-D-4013-0018
NOAA Research Station, Elmendorf AFB, Anchorage, Alaska
6. AUTHOR(S)
Radian Corporation
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION
Radian Corporation
P.O. Box 201088
8501 N. Mopac Blvd.
Austin, Texas 78759
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING/MONITORING
AFCEE/ESRT
Bldg. 624 West
Brooks AFB, Texas 78235-5000
11. SUPPLEMENTARY NOTES
12a. DISTRIBUTION/AVAILABILITY STATEMENT 12b. DISTRIBUTION CODE
13. ABSTRACT (Maximum 200 words)
The Environmental Baseline Assessment Report consists of four sections. Section 1.0 is the Introduction. A description of the
methodology employed in the EBA, including the records search, the geophysical survey, the soils and groundwater investigations, the
identification of potential contaminants of concern, and recommendations criteria for disposition of the NOAA site are presented in
Section 2.0. Section 3.0 presents and discusses the findings of the EBA, including the NOAA site history and current use, the NOAA site
environmental setting, and the investigation results for Areas 1, 2, 3, 4, and 5 of the NOAA site. References cited in the report are listed
in Section 4.0.
14. SUBJECT TERMS 15. NUMBER OF PAGES
Environmental Baseline Assessment, NOAA, Elmendorf AFB, Alaska 16. PRICE CODE
NSN1 775 S40C-0U1-R28IY0- 55C00L ASIIAIN 1.SCRT LSIIAIN 1.SCRT LSIIAIN 2.LMTTO FASRC
Standard Form 298 (Rev. 2-89)
Prescribed by ANS) Std. 239-18
298-102
TABLE OF CONTENTS
Page
EXECUTIVE SUMMARY ......................................... ES-1
1.0 ENVIRONMENTAL BASELINE ASSESSMENT REPORT ............ 1-1
1.1 Purpose and Scope ...................................... 1-1
1.2 Objectives ........................................... 1-6
1.2.1 General Project Objectives ........................... 1-6
1.2.2 Area-Specific Field Objectives of the Environmental
Baseline Assessment ................................ 1-7
1.3 Organization of the Report ................................ 1-7
2.0 ENVIRONMENTAL BASELINE ASSESSMENT METHODOLOGY ..... 2-1
2.1 Records Search ......................................... 2-1
2.2 Geophysical Survey ...................................... 2-1
2.2.1 Principles of Ground Penetrating Radar ................. 2-1
2.2.2 Ground Penetrating Radar Methods .................... 2-2
2.3 Soils and Groundwater Investigation ......................... 2-3
2.3.1 Sample Location Selection Criteria ..................... 2-3
2.3.2 Area 1--Pesticide Storage Area ........................ 2-5
2.3.3 Area 2-USGS Laboratory ............................ 2-5
2.3.4 Area 3--West of Former Fire Station .................... 2-6
2.3.5 Area 4--USGS Storage Area .......................... 2-7
2.3.6 Area 5--Former Gasoline Station ....................... 2-7
2.3.7 Groundwater Sampling .............................. 2-8
2.4 Identification of Potential Contaminants of Concern ............. 2-8
2.4.1 Preliminary Contaminants of Concern ................... 2-8
2.4.2 Risk-Based Concentrations and ARARs ................. 2-9
2.4.3 Background Data .................................. 2-12
2.5 Disposition of NOAA Areas ............................... 2-16
2.5.1 Recommendation for No Further Action ................. 2-16
2.5.2 Recommendation for RI/FS ........................... 2-16
2.5.3 Recommendation for Inclusion in Other Regulatory
Program s ........................................ 2-17
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TABLE OF CONTENTS (Continued)
Page
3.0 ENVIRONMENTAL BASELINE ASSESSMENT FINDINGS ........... 3-1
3.1 NOAA Site History and Current Use ......................... 3-1
3.1.1 Site History and Past Use of Facilities ................... 3-1
3.1.2 Current Use ...................................... 3-3
3.2 NOAA Site Environmental Setting ........................... 3-3
3.2.1 Surface Physical Features ............................ 3-3
3.2.2 Utilities ........................................ 3-3
3.2.3 Geology and Hydrogeology ........................... 3-4
3.3 Area 1 Findings ........................................ 3-4
3.3.1 Historical Releases and Potential Sources ................ 3-4
3.3.2 GPR Results ...................................... 3-4
3.3.3 Sampling Program and Analytical Results ................ 3-8
3.3.4 Comparison of Field Data to Risk-Based Concentrations
and Action Media Levels ............................ 3-15
3.3.5 Disposition of Area 1 ............................... 3-16 m
V
3.4 Area 2 Findings ......................................... 3-16
3.4.1 Historical Releases and Potential Sources ................ 3-16
3.4.2 GPR Results ...................................... 3-16
3.4.3 Sampling Program and Analytical Results ................ 3-19
3.4.4 Comparison of Field Data to Risk-Based Concentrations,
Maximum Contaminant Levels, and Action Media Levels .... 3-37
3.4.5 Disposition of Area 2 ............................... 3-38
3.5 Area 3 Findings ......................................... 3-39
3.5.1 Historical Releases and Potential Sources ................ 3-39
3.5.2 GPR Results ...................................... 3-39
3.5.3 Sampling Program and Analytical Results ................ 3-39
3.5.4 Comparison of Field Data to Risk-Based Concentrations,
Maximum Contaminant Levels, and Action Media Levels .... 3-57
3.5.5 Disposition of Area 3 ............................... 3-58
3.6 Area 4 Findings ......................................... 3-59
3.6.1 Historical Releases and Potential Sources ................ 3-59
3.6.2 GPR Results ...................................... 3-59
3.6.3 Sampling Program and Analytical Results ................ 3-59
3.6.4 Comparison of Field Data to Risk-Based Concentrations,
Maximum Contaminant Levels, and Action Media Levels .... 3-66
3.6.5 Disposition of Area 4 ............................... 3-66
iv
TABLE OF CONTENTS (Continued)
Page
3.7 Area 5 Findings ......................................... 3-67
3.7.1 Historical Releases and Potential Sources ................ 3-67
3.7.2 GPR Results ...................................... 3-67
3.7.3 Sampling Program and Analytical Results ................ 3-67
3.7.4 Comparison of Field Data to Risk-Based Concentrations,
Maximum Contaminant Levels, and Action Media Levels .... 3-74
3.7.5 Disposition of Area 5 ............................... 3-74
4.0 REFERENCES .............................................. 4-1
APPENDIX A: Ground Penetrating Radar Survey Results
APPENDIX B: Soil Boring Logs
APPENDIX C: Detailed Analytical Results
0
V
LIST OF FIGURES
Page
1-1 Site Location Map, Elmendorf AFB, Anchorage, Alaska ................ 1-2
1-2 Location of NOAA Research Station, Elmendorf AFB, Alaska ........... 1-3
1-3 Site Layout and Building Identifications for NOAA ................... 1-5
2-1 GPR Survey Areas and Sampling Locations at the NOAA Research
Station ..................................................... 2-4
3-1 Location of Geologic Cross Section at the NOAA Site ................. 3-5
3-2 Geologic Cross Section at the NOAA Site .......................... 3-6
3-3 Groundwater Surface at the NOAA Site ........................... 3-7
3-4 Detected Compounds Greater Than RBCs or ARARs at Area 1 ......... 3-13
3-5 Location of Possible Pit at Area 2 Based on Interpretation of
GPR Line NOSL12 ............................................ 3-17
3-6 Interpreted GPR Lines NOSL12 Showing the Approximate Location of
Possible Pit at Area 2 ......................................... 3-18
3-7 Detected Compounds Greater Than RBCs, ARARs, or MCLs at Area 2 ... 3-33
3-8 Locations of Geophysical Anomalies at Area 3 ....................... 3-40
3-9 Interpreted GPR Line NOSL25 Showing the Location of the Original
Septic Tank at Area 3 ......................................... 3-41
3-10 Interpreted GPR Line NOSL26 Showing Approximate Location of Leach
Field at Area 3 ............................................ 3-42
3-11 Interpreted GPR Line NOSL28 Showing Potential Buried Storage Tank
at Ar ea 3 ................................................... 3-43
3-12 Detected Compounds Greater Than RBCs, ARARs, or MCIs at Area 3 ... 3-54
3-13 Sampling Locations at Area 4 ................................... 3-65 0
vi
LIST OF FIGURES (Continued)
Page
3-14 Location of Interpreted UST at Area 5 Based on GPR Data ............ 3-68
3-15 Interpreted GPR Line Showing Location of UST at Area 5 ............. 3-69
3-16 Sampling Location at Area 5 .................................... 3-72
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LIST OF TABLES
Page
1-1 List of NOAA Areas of Investigation .............................. 1-4
2-1 Calculated RBCs and ARARs for Compounds Not Found in the OU 3 or
OU 4 Management Plans ....................................... 2-10
2-2 Metals Concentrations of Background Soil Boring Samples, Elmendorf
AFB, Anchorage, Alaska (CH2M Hill, 1993) ........................ 2-14
3-1 Results for Analyses of Area 1 Soil Samples from Elmendorf
NOAA--1993 ................................................ 3-9
3-2A Results for Analyses of Area 2 Surface Soil Samples from Elmendorf
NOAA--1993 ................................................ 3-20
3-2B Results for Analyses of Area 2 Auger Samples from Elmendorf
NOAA--1993 ................................................ 3-24
3-3 Results for Analyses of Groundwater Samples from Areas 2, 3, and 5
at Elmendorf NOAA--1993 ..................................... 3-29
3-4 Results for Analyses of Area 3 Soil Samples from Elmendorf
NOAA-1993 .............................................. 3-45
3-5 Results for Analyses of Area 4 Soil Samples from Elmendorf
NOAA--1993 ................................................ 3-60
3-6 Results for Analyses of Area 5 Soil Samples from Elmendorf
NO AA --1993 ................................................ 3-70
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ACRONYMS AND ABBREVIATIONS
AFB Air Force Base
AFCEE Air Force Center for Environmental Excellence
ARARs Applicable or Relevant and Appropriate Requirements
BLM Bureau of Land Management
CERCLA Comprehensive Environmental Response, Compensation, and
Liability Act
EBA Environmental Baseline Assessment
GPR Ground Penetrating Radar
MCLs Maximum Contaminant Levels
NOAA National Oceanic and Atmospheric Administration
NFA No Further Action
OU Operable Unit
PC Personal Computer
PCBs Polychlorinated Biphenyls
POL Petroleum, Oils, and Lubricants
RBCs Risk Based Concentrations
RCRA Resource Conservation and Recovery Act
RI/FS Remedial Investigation/Feasibility Study
RPM Remedial Project Manager
RTC Restoration Team Chief
SERA State Environmental Restoration Agreement
SVOCs Semi Volatile Organic Compounds
USAF United States Air Force
USGS United States Geological Survey
USEPA United States Environmental Protection Agency
UST Underground Storage Tank
VOCs Volatile Organic Compounds
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