About this file

This is a presolicitation site visit briefing presentation for the FY26 MS Group Optimized Remediation Contract (ORC) conducted by the Air Force Installation & Mission Support Center on September 15, 2025. The presentation provides an overview of Environmental Restoration Program (ERP) sites at Columbus Air Force Base and Keesler Air Force Base that will be included in the contract requirement.

Columbus AFB encompasses 4,390 acres and includes nine primary ERP sites: SS028 (five areas with chlorinated volatile organic compounds including TCE, PCE, and vinyl chloride requiring enhanced bioremediation and high-resolution site characterization in 2025); SS032 (two treatment areas with similar chlorinated contaminants and prior bioremediation applications); and landfill sites LF005, LF006, LF007, LF009, LF010, and LF012 with volatile organic compounds, semi-volatile organic compounds, and eight RCRA metals. OD033 is a munitions demonstration area requiring only semi-annual mowing for sign visibility and no monitoring. Keesler AFB comprises 1,636 acres with no forested areas and includes eight ERA sites: LF002 (East & West) with pesticides, PAHs, and metals; LF003 with PAHs and sediment contaminants; LF004 with arsenic and bis(2-ethylhexyl) phthalate; SS025 (Hospital Central Energy Plant) with TPHs-DRO and naphthalene derivatives; ST006 (Public Gas Station, closing 2025); ST007 with arsenic issues; ST008 (Military Gas Station) with BTEX contamination; and POL Yard with a Jet-A release of 5,600 gallons on August 30, 2022. Questions must be submitted in writing to the Contracting Officer no later than three days after the site visit, with Government responses made publicly available in the administrative record at https://ar.cce.af.mil prior to official solicitation.

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Your Success is Our M ission!UNCLASSIFIED

Air Force Installation & Mission Support Center

FY26 MS Group Optimized Remediation Contract (ORC)

Jan Patton

AFCEC/CZOW

15 September 2025

Agenda

■ Welcome

■ Purpose

■ Air Force Introductions

■ Important Information

■ Columbus AFB – Environmental Restoration Program (ERP) Sites

Slide Presentation

■ Columbus AFB – ERP Sites Tour

■ Keesler AFB – ERP Sites Slide Presentation

■ Close

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Purpose

To provide an overview of the ERP sites at both Columbus AFB and Keesler AFB that are included in the FY26 MS Group ORC

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Important Information

■ There will not be an open forum Q&A during this presentation or on the site tour.

■ Prior to this site visit Offerors were encouraged to submit all questions pertaining to the DRAFT PWS in writing.

■ Any questions during the presentations and tour must be submitted in writing to the Contracting Officer and Contract Specialist no later than (NLT) 3 days after the site visit.

■ An abstract of all questions received, and corresponding Government responses will be made publicly available with the pre-solicitation site visit notice prior to official solicitation of the MS Group ORC requirement.

■ There will be no “side-bar” discussions while touring the site(s). No individual discussion between Contractors and Government Personnel will be permitted.

■ Any questions during the presentations and tour must be submitted in writing to the Contracting Officer and Contract Specialist.

■ The Contracting Officer will remind all personnel to submit questions in writing and to rejoin the group.

■ Offerors are expected to satisfy themselves regarding all conditions that may affect the work required or the cost of contract performance. In no event shall failure to inspect the site and/or equipment constitute grounds for any protest or contract claim.

Columbus AFB

Train World Class Pilots

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Columbus AFB

■ 4,390 acres

■ 1,266 acres forested (29%)

■ 254 acres wetlands

■ CERCLA

■ MDEQ

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ERP Sites

■ SS028: Areas A, B, C, D, E

■ SS032: Areas MW06, W-128

■ LF005: Landfill Site 5

■ LF006: Landfill Site 6

■ LF007: Landfill Site 7

■ LF009: Landfill Site 9

■ LF010: Landfill Site 10

■ LF012: Landfill Site 12

■ OD033: Munitions Demo Area

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SS028

■ Contaminants of Concern

■ 1, 1 – Dichloroethane

■ Cis – 1, 2 – Dichloroethene

■ PCE – Tetrachloroethene

■ TCE – Trichloroethene

■ VC – Vinyl Chloride

■ Enhanced Bioremediation

Application (2015, 2017)

■ High Resolution Site

Characterization (2025)

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SS028 – Area A

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SS028 – Area B

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SS028 – Area C

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SS028 – Area D

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SS028 – Area E

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SS032

■ Contaminants of Concern

■ 1, 1 – Dichloroethane

■ Cis – 1, 2 – Dichloroethene

■ PCE – Tetrachloroethene

■ TCE – Trichloroethene

■ VC – Vinyl Chloride

■ Enhanced Bioremediation

Application (2015, 2017)

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SS032 – MW06 Treatment Area

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SS032 – W128 Treatment Area

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LF005, LF007, and LF012

■ Contaminants of Concern

■ Volatile Organic Compounds

■ Semi – Volatile Organic

Compounds

■ Eight RCRA Metals

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LF006

■ Contaminants of Concern

■ Volatile Organic Compounds

■ Semi – Volatile Organic

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LF009 and LF010

■ Contaminants of Concern

■ Volatile Organic Compounds

■ Semi – Volatile Organic

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OD033

■ No Monitoring

■ Semi- Annual Mowing (sign visibility)

Keesler AFB

Site Tour

Train, Develop, and Inspire Warfighters

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■ 1,636 acres

■ 0 acres forested

■ 254 acres wetlands

■ RCRA HSWA Permit

■ EPA and MDEQ

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ERA Sites

■ LF002: Landfill Site 2 (East & West)

■ LF003: Landfill Site 3

■ LF004: Landfill Site 4 (AKA LF001)

■ SS025: Hospital Central Energy Plt

■ ST006: Public Gas Station

■ ST007: Arsenic Issue

■ ST008: Military Gas Station

■ POL Yard: Jet-A Release 2022

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LF002

■ Contaminants of Concern

■ Pesticides

■ PAHs

■ Metals

■ Sediment Contaminants of Concern

■ Pesticides

■ PAHs

■ Target Analyte List (TAL) Metals

■ PCBs

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LF003

■ Contaminants of Concern

■ PAHs

■ Sediment Contaminants of Concern

■ Pesticides

■ PAHs

■ Target Analyte List (TAL) Metals

■ PCBs

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LF004 (AKA LF001)

■ Contaminants of Concern

■ Arsenic

■ Bis(2-ethylhexl) phthalate

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SS025

■ Contaminants of Concern

■ TPHs-DRO

■ 1,2,4 – Trimethylbenzene (TMB)

■ 1,3,5 - TMB

■ 1 - Methylnaphthalene

■ 2 - Methylnaphthalene

■ Naphthalene

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ST006

■ Soil Testing

■ Coordination with Regulators

■ Monitoring Wells

■ Closed 2025

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ST007

■ Contaminants of Concern

■ Arsenic

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ST008

■ Contaminants of Concern

■ Benzene

■ Toluene

■ Ethylbenzene

■ Total Xylenes

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POL Yard

■ Jet-A Release

■ 30 Aug 2022

■ 5,600 gallons

MS Group ORC

AFCEC Administrative Record: https://ar.cce.af.mil

MS Group ORC

All Questions must be submitted in writing to the Contracting Officer NLT 3 days after the site visit.

Your Success is Our M ission!

Slide Number 1
Agenda
Purpose
Important Information
Columbus AFB
Columbus AFB
ERP Sites
SS028
SS028 – Area A
SS028 – Area B
SS028 – Area C
SS028 – Area D
SS028 – Area E
SS032
SS032 – MW06 Treatment Area
SS032 – W128 Treatment Area
LF005, LF007, and LF012
LF006
LF009 and LF010
OD033
Keesler AFB
Keesler AFB
Keesler AFB
ERA Sites
LF002
LF003
LF004 (AKA LF001)
SS025
ST006
ST007
ST008
POL Yard
MS Group ORC
MS Group ORC
Send Questions To:
Slide Number 36

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