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Pacific Southwest, Region 9: Superfund

Serving Arizona, California, Hawaii, Nevada, the Pacific Islands, and Tribal Nations

Tucson International Airport Area

Superfund Site

Area A & Area B Groundwater OU, Supplement 7

Administrative Record Index

To request copies of administrative record documents, an electronic order form is available.

This administrative record file contains the documents that the U.S. Environmental Protection Agency (EPA) has used and is currently using to identify appropriate response activities for the Tucson International Airport Area Superfund Site, Area A & Area B Groundwater Operable Unit in Tucson, Arizona. It is presented in two media: microfilm (original compilation and supplements 1-6) and the Compact Disk (supplement 7).
The documents contained in the original index and Supplements 1 and 2 of the administrative record were used by the U.S. Environmental Protection Agency (EPA) to identify and select the cleanup requirements in EPA’s Record of Decision (ROD), dated August, 1988. EPA’s 1988 ROD addresses groundwater contamination (primarily trichloroethylene, or TCE) in what is referred to as Areas A and B of the regional aquifer located north of Los Reales Road at the Tucson International Airport Area Superfund Site in Tucson, Arizona.

Supplements to the administrative record file were added as documents related to remedy selection became available. (Note: Documents AR 56, AR 69 and AR 183.3 were removed from the original compilation, because they were determined either to be duplicates or not pertinent to this administrative record). The original compilation and all supplements are arranged in ascending chronological order. All supplements, with the exception of supplement 6, have undated documents at the end of each sequence.

The administrative record file was microfilmed in September 1994. At that time the index was edited to conform more closely with current Region 9 standards, and the title was made more specific (“Area A & Area B Groundwater Operable Unit”). Two essential documents were added to the file as Supplement 3: AR 1, which is the August 1988 ROD, and AR 2, which is comprised of the list of guidance documents considered or relied upon in the selection of the remedy.

Supplements 4-6 to this administrative record were microfilmed in August 2002. Supplement 4 consists of documents added to the administrative record that were relied upon or considered as part of EPA’s “Explanation of Significant Differences” (ESD 1). ESD 1 modifies the 1988 ROD’s groundwater remedy for Area B-west (Air National Guard Base project area). At the end of the public comment period for ESD 1, the final ESD and supporting documents used by EPA were added to this administrative record as Supplement 5, dated March 14, 1997.

Supplement 6 to this administrative record contains documents added to the administrative record that were relied upon or considered for EPA’s proposed “ROD Amendment,” as described in EPA’s Proposed Plan, dated June 2002. The proposed “ROD Amendment” identifies contamination in Area B of the Site (West-Cap and West Plume B) and proposes the remedy to address this contamination. The list of EPA guidance documents which were considered or relied upon in the proposed “ROD Amendment” is document AR 65 of Supplement 6 in this administrative record file. Copies of the guidance documents are contained in the Compendium of CERCLA Response Selection Guidance Documents located in the Region 9 Superfund Records Center. Comments on and responses to the Proposed Plan, the ROD Amendment itself, and other documents added to the administrative record that were relied upon or considered as part of the ROD Amendment are contained in supplement 7 to this administrative record file.

List of Abbreviations and Acronyms Used in Administrative Record Index

ABBREVIATIONMEANING
ADEQArizona Department of Environmental Quality
AFP 44Air Force Plant 44
ANGUS Air National Guard
ARARApplicable or Relevant and Appropriate Restriction (or Requirement)
ARS Arizona Revised Statutes
attchAttachment
AZState of Arizona
CAGCommunity Advisory Group
CERCLAComprehensive Environmental Response, Compensation, and Liability Act of 1980 (Superfund)
CRPCommunity Relations Plan
enclsEnclosures
EPAEnvironmental Protection Agency
ESDExplanation of Significant Differences
FOIAFreedom of Information Act
fr From
FS Feasibility Study
GCMSGas Chromatography Mass Spectrometry
IRPInstallation Restoration Program (Federal Facility CERCLA)
ltr Letter
memo Memorandum
MOUMemorandum of Understanding
mtgMeeting
OU Operable Unit
PMCProject Management Committee
PNRSPreliminary Natural Resources Surveys
PRPPotentially Responsible Party
QAPPQuality Assurance Project Plan
RARemedial Action
re Regarding
RI Remedial Investigation
RI/FSRemedial Investigation/Feasibility Study
ROCRecord of Communication
RODRecord of Decision
rpt Report
SAPSampling & Analysis Plan
SDGSample Delivery Group
SWSouthwest
TAATucson Airport Area
TARPTucson Airport Remediation Project
TCETrichloroethylene
TIAATucson International Airport Area
TL Transmittal Letter
UCABUnified Community Advisory Board
USAFUnited States Air Force
v Volume
VOCSVolatile Organic Compounds
w/ With
w/o Without
WCWest Cap
WPBWest Plume B

Administrative Record Index

Doc. DateAuthor / Author Org.Addressee / Addressee Org.Title / SubjectDoc. ID
11/19/1985Environmental Protection Agency - Region 9-Record of Decision (ROD), remedial alternative selection, w/RA plan attchs152004
03/28/2000Sean Hogan / Environmental Protection Agency - Region 9Michael Ring / City of Tucson, AZ - Water DeptLtr: Request to provide municipal water connections, Southside Tucson private well TCE, w/o encl156695
03/28/2001Craig Kafura / AZ Dept of Environmental QualityEugenia Chow / Environmental Protection Agency - Region 9
Andrew Bain / Environmental Protection Agency - Region 9
William Ellett / AZ Dept of Environmental Quality
Memo: Preliminary evaluation of water quality & water level trends based on hydrographs for selected Air National Guard & West Cap wells (Privileged document target only)2036425
04/23/2001Craig Kafura / AZ Dept of Environmental QualityAndrew Bain / Environmental Protection Agency - Region 9
William Ellett / AZ Dept of Environmental Quality
Eugenia Chow / Environmental Protection Agency - Region 9
Memo: Followup evaluation of water quality (TCE) & water level data trends, identification of apparent source areas re Air National Guard & West Plume B groundwater contamination in upper subunit (Privileged document target only)2036424
02/20/2002Liberty Analytical Corp - CompuChemEnvironmental Protection Agency - Region 9Data Validation Rpt: Case 30206, SDG Y0DW6, 19 water samples for volatiles, w/TL to R Freitas, w/o computer disk2024084
03/19/2002Joanne Dobbins / Lockheed Martin Environmental Services
Stella Cuenco / Lockheed Martin Environmental Services
Stacey Mavrakos / Lockheed Martin Environmental Services
Santiago Lee / Lockheed Martin Environmental Services
Tomas Torres / Environmental Protection Agency - Region 9
Andrew Bain / Environmental Protection Agency - Region 9
Eugenia Chow / Environmental Protection Agency - Region 9
Data Validation Rpts (18): Volatiles analysis for water & groundwater samples collected 5/17/99 - 2/12/02, w/TLs88020554
03/20/2002Unified Community Advisory Board-Mtg Minutes: Update on Air Force Plant 44, Air National Guard, West Plume B, Airport Property & TCE library156698
04/02/2002Jeff Biggs / City of Tucson, AZ - Water DeptAndrew Bain / Environmental Protection Agency - Region 9Ltr: Discusses draft technical memo, FS of former West Cap property & West Plume B & supplemental West Cap RI results, w/envelope156713
05/15/2002Unified Community Advisory Board-Mtg Minutes: Update on TCE library, TARP, Airport Property, Tucson Airport, West Plume B & West Cap cleanup alternative, & Air Force Plant 44156700
06/01/2002Montgomery Watson Harza Americas, IncUS Air Force - Air National GuardResponse to agency responses on Air National Guard comments re draft West Plume B RI rpt, 1/02, w/TL to E Chow fr A Etnyre 6/26/02156690
06/25/2002Environmental Protection Agency - Region 9Arizona Daily Star, ThePublic Notice: Public comment period for West Cap & West Plume B groundwater proposed plan, w/proof of publication88023923
07/01/2002Robert Kulakofsky / Center for Environmental ConnectionsAndrew Bain / Environmental Protection Agency - Region 9Ltr: Request to extend public comment period re West Cap & West Plume B cleanup proposals, w/envelope156658
07/01/2002Montgomery Watson HarzaUS Air Force - Air National GuardResponse to EPA responses to Air National Guard comments re draft FS, former West Cap property & West Plume B & supplemental West Cap RI results, w/TL to A Bain fr A Etnyre 7/24/02156683
07/03/2002Denise McCaffrey / I C F ConsultingEnvironmental Protection Agency - Region 9Data Validation Rpt: Case 30523, SDG Y0GT4, 10 water samples for volatiles, collected 5/21/02, w/TL to A Bain fr D Lindelof2008683
07/11/2002Patricia Birnie / Environmental Justice Action GroupAndrew Bain / Environmental Protection Agency - Region 9Ltr: Request to extend public comment period re West Cap & West Plume B cleanup proposals, w/envelope156660
07/15/2002Sandra Davenport, resident / City of Tucson, AZAndrew Bain / Environmental Protection Agency - Region 9Ltr: Request to extend public comment period re West Cap & West Plume B cleanup proposals156655
07/17/2002Philip McNeely / AZ Dept of Environmental Quality - Superfund Programs SectionDeborah Jordan / Environmental Protection Agency - Region 9Ltr: Comments on proposed plan re groundwater contamination, West Cap & West Plume B areas, w/TL to A Bain fr B Ellett 7/24/02156644
07/17/2002Unified Community Advisory Board-Mtg Minutes: Update on West Plume B & West Cap proposed plan, TARP, AFP 44, Airport Property, 1,4-dioxane sampling, & TCE library156708
07/17/2002Michael Grimm / US Air Force - Air National GuardAndrew Bain / Environmental Protection Agency - Region 9TL: Response to agency responses to Air National Guard comments on draft West Plume B RI rpt156691
07/18/2002Denise Di Santo, resident / City of Tucson, AZAndrew Bain / Environmental Protection Agency - Region 9Email: Request to extend public comment period re West Cap & West Plume B cleanup proposals156657
07/18/2002Environmental Protection Agency - Region 9-Mtg Notes: Presentation outline re proposed cleanup plan, West Cap & West Plume B groundwater156759
07/18/2002Arizona Court ReportingEnvironmental Protection Agency - Region 9Mtg Notes: Transcript, proposed plan public mtg, West Cap & West Plume B areas, w/TL to A Bain fr J Vanlandingham 10/17/02156636
07/25/2002Stefani Hines / Unified Community Advisory BoardAndrew Bain / Environmental Protection Agency - Region 9Email: Comments on West Cap & West Plume B cleanup proposals156656
07/31/2002Environmental Protection Agency - Region 9Tucson Citizen (Newspaper)Public Notice: Extension of public comment period to 8/26/02 re West Cap & West Plume B groundwater proposed plan, w/proof of publication144026
08/01/2002Montgomery Watson Harza Americas, IncUS Air Force - Air National GuardComments on EPA Tucson International Airport Area Superfund Site Newsletter 6/02, w/TL to A Bain fr A Etnyre 8/23/02156766
08/01/2002Montgomery Watson Harza Americas, IncUS Air Force - Air National GuardComments on EPA Tucson International Airport Area Superfund Site Newsletter 6/02, w/TL to A Bain fr A Etnyre 8/23/02156771
08/02/2002Michael Fulton / AZ Dept of Environmental QualitySean Hogan / Environmental Protection Agency - Region 9Email: Discusses & transmits concerns re proposed plan, West Cap & West Plume B, w/attchs & forward to A Bain fr W Ellett (wpb-westcap discussion point) (Privileged document target only)2036426
08/23/2002Chad Drummond / Montgomery Watson HarzaVicki Rosen / Environmental Protection Agency - Region 9
Andrew Bain / Environmental Protection Agency - Region 9
TL: Comments on EPA Tucson International Airport Area Superfund Site Newsletter 6/02156769
08/25/2002Robert Kulakofsky / Center for Environmental ConnectionsAndrew Bain / Environmental Protection Agency - Region 9Ltr: Comments on groundwater cleanup methods re West Cap & West Plume B, w/envelope156661
08/25/2002Todd Schram / Sierra Club - Rincon GroupAndrew Bain / Environmental Protection Agency - Region 9Ltr: Comments on groundwater cleanup methods re West Cap & West Plume B, w/envelope156667
08/25/2002Robert Kulakofsky / Center for Environmental ConnectionsAndrew Bain / Environmental Protection Agency - Region 9Ltr: Discusses & transmits petition re West Cap & West Plume B groundwater cleanup methods, air stripper carbon filtration, w/attch & envelope156662
09/19/2002Andrew Bain / Environmental Protection Agency - Region 9Ken Cronin / Tohono O'Odham NationLtr: Status of West Cap & West Plume B groundwater investigation, w/o attch156762
10/29/2002Santiago Lee / I C F Consulting, Inc/Laboratory Data Consultants, IncEnvironmental Protection Agency - Region 9Data Validation Rpt: Case 30821, SDG Y0HE3, 20 water samples for volatiles, collected 8/14/02-8/15/02, w/TL to M Zorba fr A Bain 11/13/02156715
11/20/2002Unified Community Advisory Board-Mtg Minutes: Final Unified Community Advisory Board (UCAB) minutes, 11/20/02, w/attchs2032269
12/17/2002Andrew Bain / Environmental Protection Agency - Region 9FileMemo: West Cap & West Plume B feasibility study errata, reported cancer risk156763
12/19/2002Santiago Lee / I C F Consulting, Inc/Laboratory Data Consultants, IncEnvironmental Protection Agency - Region 9Data Validation Rpt: Case 31183, SDG Y0NA2, 10 water samples for volatiles, collected 11/13/02, w/TL to M Zorba fr A Bain 1/10/03156764
01/14/2003Unified Community Advisory Board-Mtg Minutes: Final Unified Community Advisory Board (UCAB) mtg, 1/14/032032267
03/03/2003Environmental Protection Agency - Region 9-Fact Sheet: Draft final cancer guidelines & associated draft supplemental guidance for public review & comment2032260
03/19/2003Unified Community Advisory Board-Mtg Agenda: Unified Community Advisory Board (UCAB) mtg 3/19/032032270
03/19/2003Unified Community Advisory Board-Mtg Minutes: Final Unified Community Advisory Board (UCAB) minutes, 3/19/032032268
04/07/2003Calvin Tanaka / I C F ConsultingEnvironmental Protection Agency - Region 9Data Validation Rpt: Case 31419, SDG Y0TA0, 20 water samples for volatiles, collected 2/11/03-2/13/03, w/TL to M Zorba fr A Bain 5/19/03156777
06/02/2003Agnieszka Jankowski / DataVal, Inc
Donna Breaux / DataVal, Inc
Environmental Protection Agency - Region 9Data Validation Rpt: Case R02S62, SDG 02179C, 13 water samples for 1,4-dioxane, collected 6/25/02-6/27/02, w/TLs, w/o computer disk150187
07/16/2003Unified Community Advisory Board-Mtg Agenda: Unified Community Advisory Board (UCAB) mtg 7/16/032032271
07/17/2003Andrew Bain / Environmental Protection Agency - Region 9Michael Zorba / C H 2 M HillTL: Data validation rpt, 1,4-dioxane sampling fr 6/02, West Cap & West Plume B156775
07/21/2003Nanny Estrada / I C F Consulting, Inc/Laboratory Data Consultants, IncEnvironmental Protection Agency - Region 9Data Validation Rpt: Case 31720, SDG Y0XK0, 10 water samples for volatiles, collected 5/13/03, w/TL to A Bain fr D Lindelof2032277
09/01/2003Montgomery Watson Harza Americas, IncUS Air Force - Air National GuardResponse to ADEQ comments on draft semi-annual groundwater monitoring rpt, 2/03 sampling/gauging event, 162nd Fighter Wing2008791
09/01/2003Montgomery Watson Harza Americas, IncUS Air Force - Air National GuardResponse to EPA comments on draft semi-annual groundwater monitoring rpt, 2/03 sampling/gauging event, 162nd Fighter Wing2008792
09/08/2003Jerome Mullett / Montgomery Watson HarzaMichael Grimm / US Air Force - Air National GuardTL: Response to comments on draft semi-annual groundwater monitoring rpt, 2/03 sampling/gauging event, 162nd Fighter Wing2008790
09/17/2003Unified Community Advisory Board-Mtg Agenda: Unified Community Advisory Board (UCAB) mtg, w/encls2007462
09/17/2003Unified Community Advisory Board-Mtg Minutes: Final minutes Unified Community Advisory Board (UCAB) mtg 9/17/03, w/attchs2004489
11/19/2003Unified Community Advisory Board-Mtg Agenda: Unified Community Advisory Board (UCAB) mtg 11/19/032004370
11/19/2003Unified Community Advisory Board-Mtg Agenda: Unified Community Advisory Board (UCAB) mtg 11/19/032032272
11/26/2003Matthew Jefferson / Environmental Protection Agency - Region 9Michael Grimm / US Air Force - Air National GuardLtr: Comments on draft 2003 groundwater modeling rpt, 162nd Fighter Wing2007467
12/01/2003Montgomery Watson Harza Americas, IncUS Air Force - Air National GuardMtg Minutes: Draft regulatory progress update mtg 11/20/03, 162nd Fighter Wing, w/TL to J Gilbertsen fr J Mullett 11/17/032004379
12/18/2003William Ellett / AZ Dept of Environmental QualityMichael Grimm / US Air Force - Air National GuardLtr: Comments on draft 2003 groundwater monitoring rpt, 162nd Fighter Wing2004381
01/12/2004William Ellett / AZ Dept of Environmental QualityJack Gilbertsen / US Air Force - Air National GuardLtr: Comments on draft semi-annual groundwater monitoring rpt, 8/03 sampling/gauging event, 162nd Fighter Wing2032266
01/30/2004Andrew Bain / Environmental Protection Agency - Region 9Jack Gilbertsen / US Air Force - Air National GuardLtr: Comments on draft regulatory progress update mtg minutes, 11/20/03, 162nd Fighter Wing2032264
02/01/2004Montgomery Watson Harza Americas, IncUS Air Force - Air National GuardMtg Minutes: Final regulatory process update mtg 11/20/03, 162nd Fighter Wing, w/TL to J Gilbertsen fr J Mullett 2/17/042008822
03/01/2004Montgomery Watson Harza Americas, IncUS Air Force - Air National GuardResponse to comments re draft 2003 groundwater modeling rpt, 162nd Fighter Wing2032263
03/29/2004Brenda Bettencourt / Environmental Protection Agency - Region 9Andrew Bain / Environmental Protection Agency - Region 9Memo: Analytical testing results, W Plume split sampling project R04S40, SDG 04050A, 4 water samples for volatiles, collected 2/10/04-2/11/04, w/attchs2032273
03/30/2004Brenda Bettencourt / Environmental Protection Agency - Region 9Andrew Bain / Environmental Protection Agency - Region 9Memo: Analytical testing results, West Cap sampling project R04S37, SDG 04056A, 21 water samples for metals, collected 2/24/04-2/26/04, w/attchs2032281
03/31/2004Andrew Bain / Environmental Protection Agency - Region 9Jack Gilbertsen / US Air Force - Air National GuardLtr: Comments on draft quarterly groundwater monitoring rpt, 11/03 sampling/gauging event, 162nd Fighter Wing2032265
04/08/2004Brenda Bettencourt / Environmental Protection Agency - Region 9Andrew Bain / Environmental Protection Agency - Region 9Memo: Analytical testing results, West Cap sampling project R04S37, SDG 04056A, 21 water samples for anions & perchlorate, collected 2/24/04-2/26/04, w/attchs2032280
04/16/2004Nanny Estrada / I C F Consulting, Inc/Laboratory Data Consultants, IncEnvironmental Protection Agency - Region 9Data Validation Rpt: Case 32626, SDG Y1988, 20 water samples for volatiles, collected 2/24/04-2/26/04, w/TL to A Bain fr D Lindelof2032278
05/01/2004Environmental Protection Agency - Region 9-Fact Sheet: Well drilling to continue, West Cap & West Plume B groundwater sampling re TCE (In English & Spanish)2032262
05/01/2004Montgomery Watson Americas, IncUS Air Force - Air National GuardMtg Minutes: Final regulatory progress update, 3/17/04, 162nd Fighter Wing2032261
05/05/2004Brenda Bettencourt / Environmental Protection Agency - Region 9Andrew Bain / Environmental Protection Agency - Region 9Memo: Analytical testing results, West Cap sampling project R04S37, SDG 04056A, 21 water samples for semivolatile organics, collected 2/24/04, w/attchs2032279
05/06/2004Jerome Mullett / Montgomery Watson HarzaJack Gilbertsen / US Air Force - Air National GuardTL: Final regulatory process update mtg minutes, 11/20/03, 162nd Fighter Wing2032259
07/01/2004Andrew Bain / Environmental Protection Agency - Region 9Jack Gilbertsen / US Air Force - Air National GuardLtr: Comments on draft semi-annual groundwater monitoring rpt, 2/04, 162nd Fighter Wing2032258
07/19/2004Santiago Lee / I C F Consulting, Inc/Laboratory Data Consultants, IncEnvironmental Protection Agency - Region 9Data Validation Rpt: Case 32894, SDG Y1BB4, 10 water samples for volatiles, collected 5/20/04, w/TL to A Bain fr D Lindelof2032257
08/02/2004Brenda Bettencourt / Environmental Protection Agency - Region 9Andrew Bain / Environmental Protection Agency - Region 9Memo: Analytical testing results, West Cap sampling project R04S68, SDG 04169B, 5 water samples for metals, collected 6/16/04-6/24/04, w/attchs2032274
08/09/2004Brenda Bettencourt / Environmental Protection Agency - Region 9Andrew Bain / Environmental Protection Agency - Region 9Memo: Analytical testing results, West Cap sampling project R04S68, SDG 04169B, 5 water samples for anions & perchlorate, collected 6/16/04-6/24/04, w/attchs2032275
08/10/2004Brenda Bettencourt / Environmental Protection Agency - Region 9Andrew Bain / Environmental Protection Agency - Region 9Memo: Analytical testing results, West Cap sampling project R04S68, SDG 04169B, 5 water samples for semivolatile organic compounds, collected 6/16/04-6/24/04, w/attchs2032380
08/10/2004Brenda Bettencourt / Environmental Protection Agency - Region 9Andrew Bain / Environmental Protection Agency - Region 9Memo: Analytical testing results, West Cap sampling project R04S68, SDG 04169B, 5 water samples for TPH, collected 6/16/04-6/24/04, w/attchs2032276
08/12/2004Shannon Davis / AZ Dept of Environmental QualityKathleen Johnson / Environmental Protection Agency - Region 9Ltr: ROD amendment concurrence, former West Cap & West Plume B2032388
08/18/2004Robert Frank / C H 2 M HillAndrew Bain / Environmental Protection Agency - Region 9Technical Memo: Comments on draft 2004 groundwater modeling rpt (Privileged document target only)2036427
09/08/2004Environmental Protection Agency - Region 9-Record of decision (ROD) amendment, former West Cap & West Plume B project areas, Area A & B groundwater OU2034305

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