CA GROUP ORC Virtual Site Walk_v1.pdf

CALIFORNIA GROUP

OPTIMIZED REMEDIATION

CONTRACT

W91238-21-R-0017 U.S. Army Corps of Engineers Virtual Site Walk Sacramento District 12 March 2021

3/11/2021

USAF

Jessica Faragalli, PM USACE/ Sacramento

UNCLASSIFIED

Agenda

Welcome Remarks Roll Call Rules of Engagement Optimized Remediation Contract (ORC) Overview Integrated Master Schedule (IMS) and Milestone Payment Schedule (MPS) Environmental Restoration Program (ERP) Mission Air Force Plant 42 ERP Overview Travis Air Force Base ERP Overview Document Review Cycle & Considerations Logistical Challenges & Flight Line Access Other Considerations Additional Contract Requirements AFP 42 Optimized Remediation Contract Travis AFB Optimized Remediation Contract

Roll Call

USACE

Air Force Prospective Bidders Please self identify with your name and organization in the chat window

Rules of Engagement

Everything presented here today is based on our most up to date understanding of scope of the project, timelines, current acquisition strategy, etc.

This WebEx is being recorded and will be available to all Contractors after the virtual site walk as GFI.

Private chat conversations in WebEx are not actually private!

Contractors must keep microphones/phones muted during the formal presentation; USACE and AFCEC presenters will not entertain any questions during the formal presentation.

Request video/cameras remain turned off during presentation.

Any information presented during the virtual site walk is not binding.

Contractors must submit formal RFI’s (via DrChecks/ProjNet/Bidder Inquiry) in order to obtain official responses from the Government.

Solicitation terms and specifications will NOT change by virtue of any discussion during the virtual site walk unless the solicitation is formally amended in writing by the KO.

Rules of Engagement cont.

ORC Overview

Performance-based Optimized Remediation Contract (ORC) to provide environmental remediation services at Travis Air Force Base and Air Force Plant 42, California.

One stand-alone “C”-type Contract.

Up to 10-year PoP, including all options.

Activities include but are not limited to:

- Maintenance of established remedies.

- Optimization to enhance remedial progress.

- Achievement of site-specific performance objectives.

Performance objectives at 27 IRP sites.

ORC Overview cont., Performance Requirements

Table 1 of the PWS presents Performance Objectives, Performance Periods and Performance Standards associated with all installations and sites under this ORC.

Performance Objectives include maintaining compliance with regulatory requirements and binding agreements (e.g., LTM and RA-O sites), and as applicable achieving Response Complete, Site Closeout, and/or Remedy-in- Place metrics.

Environmental Liability lies with the AF as lead agency and responsible party; the contractor cannot negotiate or bind on behalf of the Government.

ORC Overview cont., Programmatic Elements

ORC Program Management Plan Guidance

Contractor’s Project Management Plan (PMP), Quality Assurance Surveillance Plan (QASP), Integrated Master Schedule (IMS) and Milestone Payment Schedule (MPS) shall remain in lockstep over the duration of the contract USACE COR oversees all surveillance USACE and Air Force review 100% of work products

WBS, IMS and MPS

The Work Breakdown Structure (WBS), Integrated Master Schedule (IMS) and Milestone Payment Schedule (MPS) (without price information) shall be included in the Technical volume.

Demonstrate comprehensive understanding of the ORC process and work required to achieve each PO.

Align with CLIN/Sub-CLIN structure.

Consistent with proposed approach, PWS requirements and guidance.

Milestone Payment Schedule

Describe appropriate milestone payments necessary to the achievement of the POs.

Excludes unacceptable milestone payments representing a “progress” payment or a monthly payment for level of effort expended as well as management or overhead type costs.

Examples:

- Mobilization/demobilization

- Completion of routine and reoccurring field activities

- Submittal of a monthly status report

- Allocation of basewide costs to specific sites

Include milestone payment cost distribution by percentage for CLINs/Sub- CLINs without pricing information in the technical volume; with pricing information in the price volume Final CLIN/Sub-CLIN milestone payments demonstrate achievement of the objective (min. 20% of the total CLIN/Sub-CLIN value) CLIN/Sub-CLIN cost distribution should be in accordance with the bid schedule

Milestone Payment Schedule cont.

Questions?

Please submit formal RFI’s (via Bidder Inquiry) in order to obtain official responses from the Government.

Your Success is Our M ission!UNCLASSIFIED

Air Force Installation & Mission Support Center

ENVIRONMENTAL

RESTORATION PROGRAM

MISSION

Lonnie Duke, RPM

AFCEC/CZOW (TAFB)

ERP Mission

Air Force Plant (AFP) 42 & Travis Air Force Base (AFB) Environmental Restoration Programs (ERP) operate under the following:

1) Protect Human Health and the Environment

2) Support the Mission

3) Effective Stewardship of Taxpayer Dollars

ERP “Broad” Site Categories

Spill Sites Former Landfill Sites Leaking Underground Storage Tanks Fire Training Areas (former and current)

CERCLA & RCRA

Travis AFB is subject to the Federal Facilities Agreement (FFA) governed by

CERCLA

AFP 42 does not have a FFA Regulatory stakeholders may include:

- Environmental Protection Agency (EPA)

- Regional Water Quality Control Board (RWQCB)

- Department of Toxic Substances Control (DTSC) Petroleum only sites are governed by RCRA with oversight by RWQCB

Emerging Contaminants (PFOS/PFOA)

AFP 42

Coordination between ORC and RI contractor may be necessary for sampling events to reduce impact to airfield operations.

AFP42 has programmed a Phase 1

RI for 13 sites and an Expanded SI for 5 sites.

Travis AFB

A Phase 1 Remedial RI is underway at Travis AFB.

Coordination between ORC and RI contractor may be necessary for sampling events to reduce impact to airfield operations.

Sites FT005, SS030 and SD034 have PFAS above the LHA and are being investigated by the RI contractor. RI: Remedial Investigation

SI: Site Inspection

AIR FORCE PLANT 42

ENVIRONMENTAL

RESTORATION PROGRAM

OVERVIEW

George Warner, RPM

AFCEC/CZOW (AFP 42)

In operation since 1943.

Is located in Palmdale CA, about 80 miles north of Los Angeles.

Is a government-owned, contractor-operated (GOCO) facility.

All of the real property and facilities (e.g., buildings, runways, etc.) are owned by the USAF, but are intended for use by the on-site tenants or for support of tenant operations.

AFP 42 encompasses approximately 5,832 acres, with general land use consisting of the following:

- 1,063 acres are industrial sites

- 4,481 acres are multiple-use facilities

- 288 acres are obstruction easements at the ends of the runways

AFP 42 Overview

AFP 42 Overview cont.

Runway nearly 7,000 ft long Over 5,832 acres Over 4,481 acres of multi-use facilities Over 1,063 acres of industrial facility Approx. 7K uniformed and civilian employees Eight different Plant Sites:

- Site 1 - Boeing

- Sites 2, 7E - Lockheed Martin

- 3, 4, 7W and 8 – Northrup Grumman

- Sites 5 and 6 - common areas run by the 412th Test Wing from Edwards AFB

AFP 42 ERP Overview

State Lead 29 ERP Sites 23 Sites Closed 1 Site is in IRA/Operational 5 Sites in LTM/Operations 13 Sites in PFOS/PFOA Planned RI 5 Sites in PFOS/PFOA Expanded SI Active Site FT05 is a PFOS/PFOA Site

IRP: Interim Removal Action LTM: Long Term Management RI: Remedial Investigation SI: Site Inspection

AFP 42 Regulatory Considerations

AFP 42 does not have a FFA DTSC is the lead oversight regulatory agency Lahontan Regional Water Quality Control Board (Region 6) is a regulatory stakeholder AFP 42 is a state lead

TRAVIS AIR FORCE BASE

ENVIRONMENTAL

RESTORATION PROGRAM

OVERVIEW

Travis AFB Overview In operation since 1943.

Is located in northern California, about 50 miles northeast of San Francisco and

40 miles southwest of Sacramento.

Home to the 60th Air Mobility Wing, the largest airlift organization in the United

States Air Force (USAF) with a versatile fleet of C-5 Galaxies, C-17 Globemasters and KC-10 Extenders. The KC-46 Pegasus will replace the KC-10.

Handles more cargo and passenger traffic through its airport than any other military air terminal in the United States.

Named in honor of Brigadier General Robert F. Travis.

Bordered by the cities of Vacaville to the north, Fairfield to the northwest, and

Suisun City to the west, and agricultural land to the south and east.

Travis AFB Overview cont.

Has two active runways each at nearly 11,000 ft long

Over 6,500 total acres Over 1,100 buildings Over 1.58M sq ft of roadways Nearly 600 acres of airfield pavement Approx. 3,600 full time residents Approx. 26K uniformed and civilian employees (when not tele-working)

ERP Overview

National Priority Listed (NPL) Federal Facility Agreement (FFA) 73 Sites total 40 Sites Closed 21 Sites in LTM/Operations 12 Sites and 5 Areas of Concern in PFAS RI 3 of the sites in the ORC have

PFOS/PFOA and are also being investigated in the RI

4 MMRP sites all closed to UU/UE

CERCLA and the Travis FFA Records of Decision Document Review Times Challenging Regulatory Issues Quality Assurance Project Plan

Travis AFB Regulatory Considerations

Travis AFB Regulatory Status

Travis is on the National Priorities List (NPL) The Federal Facility Agreement

(FFA) was signed in Oct 1990 San Francisco Bay Regional Water

Quality Control Board (Region 2) is the State lead agency for the FFA

Records of Decision

Travis AFB RODs are highly prescriptive.

Almost any change in a remedy will likely require an ESD.

Keep in mind how long an ESD will take to get in place if you are proposing a change in a remedy to save in life cycle costs, or establish an alternative approach.

ROD: Record of Decision ESD: Explanation of Significant Differences

Quality Assurance Program Plan

Travis AF is currently operating under one base-wide UFP QAPP for the contract.

If a particular site is not covered by the UFP QAPP, any deviations/additions to the UFP QAPP will be included in the workplan for the site.

UFP QAPP: Uniform Federal Policy for Quality Assurance Project Plans

DOCUMENT REVIEW CYCLE &

CONSIDERATIONS

Chet Storrs, PM

Decision Document Coordination

ESDs, RACRs, and RODs require USAF signatures

- AFP 42 projects – 412th Test Wing and AFLCMC/EZV (WPAFB)

- 60th Air Mobility Wing Commander typically a 30 day coord/review

- There is a 30 day coord/review period to obtain AFCEC/CZ signature

ESD: Explanation of Significant Differences RACR: Remedial Action Completion Report ROD: Record of Decision AFLCMC: Air Force Life Cycle Management Center AFCEC: Air Force Civil Engineering Center

Pre Drafts: Internal review by government stakeholders only (AF and

USACE).

Drafts: Reviewed by regulatory stakeholders (EPA, RWQCB and

DTSC).

Draft Finals: Reviewed by All stakeholders for completeness and accuracy of RTCs (no additional comments are taken).

Finals: Submitted to all stakeholders and uploaded to the Admin Record.

Document Review

At TAFB, documents reviews are tracked via the Master Meeting and Document Schedule.

Pre-Draft to USAF and USACE for review; usually 30 days or less.

Once RTCs have cleared then the document can be submitted to regulators. This is the Draft document.

Typically another 45 days to reconcile RTCs, then the document can go final… if it made it through OPSEC & Policy Review.

Document Review cont.

Document Review cont.

Reviews typically take 30-60 days per document.

Regulator reviews are thorough and agencies may have multiple reviewers to include:

- Subject Matter Experts

- Project Manager

- Hydrogeologist

- Toxicologist

- Legal

Contractors must work USAF project managers to prepare responses and some may require that the AF prepare a response.

Complex documents or documents with ARAR disagreements can take up to a year to finalize.

ESDs, RACRs, FSs, PPs, and RODs require USAF legal review.

This typically takes 21 days.

ESDs, RACRs, PPs, and RODs require EPA legal review.

This typically takes 60 days.

Any changes made by EPA must be reviewed by USAF legal!

Document Review cont.

ARAR: Applicable or relevant and appropriate requirements ESD: Explanation of Significant Differences RACR: Remedial Action Completion Report FS: Feasibility Study PP: Proposed Plan ROD: Record of Decision

Pre Draft - USAF/ USACE review 4 weeks Revise per comments 1 week Back check/resolution by USAF /USACE 2 weeks USAF Legal review 3 weeks Revise/receive USAF legal approval 3 weeks Draft - Regulator review 8 weeks Revise per regulator comment/USAF approval 4 weeks USAF legal check/approval 2 weeks Regulator review/approve responses 4 weeks Draft Final OPSEC & Policy Review 1 week Finalize Total 32 weeks after initial submittal!

Typical complete review cycle… …if there are no major issues

LOGISTICAL CHALLENGES &

FLIGHT LINE ACCESS

Working on AFP 42 and TAFB can be challenging.

Schedules may have to be changed on short notice to support the mission.

AFCEC staff and support contractors will assist in establishing and maintaining the needed lines of communication with the base.

Be prepared for occasional delays entering the base due to force protection requirements.

Logistical Challenges

Flight line Access -Requires close coordination with multiple offices as well as a Flight

Line driver's license.

- Some areas require an escort or personnel with a Restricted Area Badge and radio proficiency if driving on/near the runways.

Logistical Challenges

Flight Line Badge

- Controlled Area – Favorable background check

- Travis AFB has not been issuing to contractors

- At AFP 42 there is minimal need to be on flight line; 412th will escort

- Only a few monitor wells and FT-05 are on the airfield

Airfield Access cont.

Construction Escort

Airfield Driver

- Flight Line Driver's License:

• On-line training

• In-person proctored written exam

• Practical training for daytime access only

• Trained to use radio and talk to the tower

• Trained on security protocols and airfield markings

Temporary Airfield Construction Waiver

Part of the TACW - Need to submit a request to the FAA

Temp Airfield Construction Waiver cont.

Part of the TACW – Must generate an Operational RiskAssessment

Must also coordinate with Airfield Ops and all impacted parties to determine when and how to get work done.

During the ops meeting

Must coordinate the project with installation Security Forces Compliance with all Force Protection Measures is required

Other Considerations

Airfield construction barriers There are generally multiple major construction projects underway or planned

Concrete

Airfield concrete is 18 to 24 inches thick with plenty of rebar Some rebar is 1” diameter

Patching Holes

Must use quick setting concrete No cold mix asphalt patch

What else?

Foreign Object Debris (FOD) A substance, debris or article alien to the aircraft that would potentially cause damage.

Ready yet?

Now it’s time for a Work Clearance Request.

Roughly two-four weeks until final.

Must be submitted electronically.

OTHER CONSIDERATIONS

CERCLA actions do not undergo formal review under the National Environmental Policy Act (NEPA).

However the Endangered Species Act (ESA) and National Historic

Preservation Act (NHPA) must still be considered.

Installations may also have Integrated Natural Resource Management Plans

(INRMP) and Programmatic Biological Opinions (PBO).

Biological and cultural monitoring is generally a requirement when conducting work in habitat of threatened or endangered species.

It may be necessary to have resumes of bio-monitors approved by the US

Fish and Wildlife Service.

Natural & Cultural Resources

Threatened & Endangered Species

The following occur on Travis AFB

• California tiger salamander (Ambystoma californiense) Federally and State Threatened

• Swainson’s hawk (Buteo Swainsonii) State Threatened

• Tricolored blackbird (Agelaius tricolor) State Threatened

• Vernal pool fairy shrimp (Branchinecta lynchi) Federally Threatened

• Vernal pool tadpole shrimp (Lepidurus packardi) Federally Endangered

• Contra Costa goldfields (Lasthenia conjugens) Federally Endangered

The following occur on both Travis AFB and AFP 42

• Western burrowing owl (Athene cunicularia ssp. Hypogea) State Endangered

The following have the potential to occur on Travis AFB

• California red-legged frog (Rana aurora draytonii) Federally Threatened

• Delta green ground beetle (Elaphrus viridis) Federally Threatened

• Conservancy fairy shrimp (Branchinecta conservation) Federally Endangered

Day of Drilling

Problems with Drill Crew getting access?

Real ID Act

Outstanding warrant?

Photography

No photography of, on, or toward the flight line without prior authorization.

Any photos of, on, or toward the flight line must be cleared by the PAO office prior to release.

ERPIMS

AFCEC manages the USAF Environmental Resources Program Information Management System (ERPIMS).

ERPIMS is the Air Force system for validation and management of data from environmental projects across all Air Force installations.

AFCEC maintains latest official version of the ERPIMS specification and

ERPIMS data structure.

https://www.afcec.af.mil/What-We-Do/Environment/Restoration/ERPIMS/ https://www.afcec.af.mil/What-We-Do/Environment/Restoration/ERPIMS/

ERPIMS

All data must be submitted to ERPIMS; this includes:

- Location descriptions - GIS location

- Analytical chemistry results - Sample depths

- Hydrogeological information - Monitoring well characteristics

These packages are NOT easy to assemble and submit.

Public Administrative Record

This is a primary source for Government Furnished Information (GFI) The below website allows review of Air Force CERCLA documents.

https://ar.afcec-cloud.af.mil/

Laboratories

Must only use DOD ELAP labs for the CERCLA sites.

https://www.denix.osd.mil/edqw/accreditation/home/dod-elap-fact-sheet/

Groundwater Monitoring Wells

No stick up wells in the Airfield.

2in wells are fine for most sites.

Well abandonment requires rig mobilization.

AFP 42 wells must be 4in diameter with 40in screen due to dropping groundwater levels.

All well data must be provided to ERPIMS!

ADDITIONAL CONTRACT

CONSIDERATIONS

Support Tier I team meetings with regulatory stakeholders

- Facilitator

- Record Keeping

- Agenda coordination Create content and publish the installation newsletters (TAFB only) Currently two editions per year at TAFB with a promise to return to quarterly after ORC awarded.

Update the Community Involvement Plan in the Base Year Complete Restoration Advisory Board Surveys per DERP manual

Additional Contract Considerations

Update the Installation Conceptual Site Model

- Includes with new boring / well data Update annual Installation Groundwater Level Map

- Includes annual water level sampling across the installation monitoring network

Update Annual GIS / ERP maps -Transmit GIS layers to Installation GeoBase group

- Print hard copy maps for distribution to ERP and base Civil Engineer

Squadron Use

Additional Contract Considerations cont.

Manage the Base wide Monitoring Well Network

- Conduct well survey and recommend repairs

- Repair wells recommended for repairs

- Remove unneeded wells

- Mark wells and piping locations for ALL base dig permits

Support management of Administrative Record

- Ensure final documents are bookmarked pdf less than 25 mb in size

- Assist in categorizing and assigning metadata for final documents

Land Use Controls

- Update the Land Use Control Implementation Plan in the Base Year which requires working with Base Personnel

- Develop Annual Land Use Control Inspections & Reports

• Maintenance of existing land use control signs and barriers

• Support the annual inspection and provide field comments as needed to Base Personnel.

• Prepare the LUC annual report

AIR FORCE PLANT 42

FY21 OPTIMIZED

REMEDIATION CONTRACT

(ORC)

George Warner, RPM

AFCEC/CZOW (AFP 42)

FTO5: Abandoned Fire Training Circle DP16: Evaporation Ponds SS19: Engine Run-Up Area SS20: Noise Level Area SS28: Surface Soil OT-29: Plant Site 1 Groundwater

ORC Site List

Performance Objectives

FT005 LTM in accordance with the soil ROD and LUCIP DP016 LTM in accordance with the soil ROD and LUCIP SS019 LTM in accordance with the soil ROD and LUCIP SS020 LTM in accordance with the soil ROD and LUCIP SS028 LTM in accordance with the soil ROD and LUCIP OT029 Response Complete in Ten Years

ORC Soil Sites

Sites FT05, DP16, SS19, SS20, and SS28 achieved Response Complete Soil sites are in Long Term Monitoring Land Use Control (LUC) inspection completed December 2020 ORC Performance Objective

- Long Term Monitoring

- Perform annual monitoring

- Note: Site FT005 will be part of AFP42 PFOS/PFOA RI

Air Force Plant 42 ORC Soil Sites

Base Map and bring copy to meeting]

FT005 – Common Area

Contaminants of concern

- Benzene

- Ethylbenzene

- Arochlor-1254

- 1,2,4-Trimethylbenzene

Plant Site 2: IRP Sites SS20 and SS28

Contaminants of concern

- Benzo(a)pyrene

- Polychlorinated biphenyls

Plant Site 3: IRP Sites DP16 and SS19

Contaminants of concern

- Benzo(a)pyrene

- Benzo(b)fluoranthene

Location of Plant 1, where paints, primers, BTEX, cleaners, etc.

were handled.

Previous investigations: TCE identified in GW, leading to Interim Remedial Measures utilizing a combination SVE/GWT system.

Current Interim System: GWTS (operational in 2011) extracts and treats GW, before returning it to subsurface through injection wells.

SVE system (2006) currently turned off and rebound testing is planned.

Site 29 Plant Site 1 Contamination

Site 29 Ongoing Project

Groundwater IRA

- Operate contaminate system

- Quarterly Monitoring

- Soil Vapor Rebound Testing

Restart Site 29 Remedial Investigations

- Submit Site 29 UFP-QAPP

- Indoor Air sampling Building 150

- DW1-4 Vertical Profiling

- Groundwater Model

- Deep Vertical Well

Feasibility Study

- Technical Economical and Feasibility Analysis

Proposed Plan Decision Document

Performance Objective Response Complete in Ten Years

Soil and Groundwater Cleanup; No Further Action Complete Inspection

- Inspected Groundwater Treatment System

- Perform Monitor Well Survey

- Complete Any Repairs

OT-29 ORC Plant Site 1 Contamination

Site 29 Treatment System

Site 29 GW Monitor Well Network

Site 29 September 2020 Plume

DW 1-4 Data

AFP 42 Site Access

Must be US Citizen and provide proof:

- US passport

- Birth certificate Pass an operator background check Common Area Plant Sites 5 and 6: Standard AF Visit Request AFP42 requires federal compliant drivers license Plant Site 1: Send Visit Request to Boeing Plant Sites 2 & 7E: Send Visit Request to Lockheed Plant Sites 3, 4, 7W & 8: Send Visit Request to Northrop

AFP 42 Process

AFP42 requires a AF813. Common areas requires dig permit and GOCO plant sites are cleared by the plant operator and require an underground utility clearance survey.

AFP42 requires a Federal Aviation Administration waiver for drill rigs.

AFP42 allows commercial flights.

AFP42 has production wells for the Plant Sites 1-4 and have Palmdale Water on Plant Sites 5-8. Production wells control flow of groundwater near these plant sites.

Palmdale Water has large production to the south of the plant causing the water to flow to the south instead of natural water gradient to the north.

TRAVIS AIR FORCE BASE

FY21 OPTIMIZED

REMEDIATION CONTRACT

(ORC)

DP039: Bldg 755 FT004: Fire Training Area 3 FT005: Fire Training Area 4 LF006: Landfill 1 LF007: Landfill 2 LF008: Landfill 3 LF044 Landfill X SD031: Facility 1205 SD033: Storm Sewer System B, Facilities 810 & 1917, South Gate Area SD034: Facility 811 SD036: Facilities 872, 873, 876

ORC Site List

SD037: Sanitary Sewer System, Facilities 837, 838, 919, 977, and 981, Area G Ramp, Ragsdale/V Area SS014: Former Jet Fuel Spill Area SS015: Solvent Spill Area, Facilities 550, 552 SS016: Oil Spill Area, Facilities 11, 13/14, 20, 42/1941, 139/144, Selected Sections of the Storm Sewer Right-of-Way SS029: Monitoring Well 329 Area SS030: Monitoring Well 269 Area ST018: Site North/South Gas Stations ST027B: Facilities 1918, 1919,1754 ST028: Facilities 363 and 365 ST032: Monitoring Well 246 Area

DP039 RA-O with optimization in accordance with the ROD FT004 ROD Amendment/Remedy Implementation & RA-O in accordance with the ROD FT005 RA-O with optimization in accordance with the ROD LF006 Site Closeout LF007 RA-O with optimization in accordance with the ROD LF008 RA-O in accordance with the ROD LF044 LTM in accordance with the soil ROD and LUCIP

SD031 Record of Decision & RAO in accordance with the ROD SD033 RAO in accordance with the ROD SD034 ROD Amendment/Remedy Implementation & RAO &

Optimization in accordance with the ROD SD036 RAO & Optimization in accordance with the ROD SD037 RAO & Optimization in accordance with the ROD SS014 Corrective Action Plan/Remedy in Place & RAO W/Optimization in accordance with CAP SS015 RAO & Optimization in accordance with the ROD (GW) & LTM in accordance with ROD (soil)

SS016 RA-O in accordance with the ROD/Reduce LCCs SS029 RA-O in accordance with the ROD/Reduce LCCs SS030 RA-O in accordance with the ROD/Reduce LCCs ST018 RA-O & optimization in accordance with the CAP ST027 RA-O in accordance with the ROD ST028 LTM in accordance with the LUCIP; POCO GW only ST032 LTM in accordance with the LUCIP; POCO Soil & GW

Site Access Considerations

Two sites are partially within the Controlled Movement Area

• SS029; Monitoring Well 329 Area

• ST032; Monitoring Well 246 Area

Four sites are partially within the Restricted Area

• SD033; Storm Sewer System B, Facilities 810 & 1917, South Gate Area

• SS014; Former Jet Fuel Spill Area

• SS016; Oil Spill Area, Facilities 11, 13/14, 20, 42/1941, 139/144, Selected Sections of the Storm Sewer Right-of-Way

• ST027B; Facilities 1918, 1919,1754

TRAVIS AFB GROUNDWATER

TREATMENT PLANTS

Granular Activated Carbon treatment technology.

SS016 is the current treated site.

Chlorinated solvents (primarily TCE) are the targeted contaminants.

Groundwater is collected from 4 horizontal extraction wells located in two areas of the 300 Ramp (Tower Area and Oil Spill Area) System components include, but not limited to:

- 5,000 gal influent tank

- Two 20,000 lb granular activated carbon vessels

- 500,000 gal treated water storage tank

- Two 6,500 gal backwash storage tanks

Plant treats about 600,000 gals per month with discharge to the storm drain system leading to Union Creek.

Central GroundWater Treatment Plant Overview

Central GroundWater Treatment Plant

CGWTP Well Field

CGWTP Flow Diagram

South Base Boundary GroundWater Treatment Plant Overview

Granular Activated Carbon treatment technology.

SS029, SS030, FT005 are the treated sites.

Chlorinated solvents (primarily TCE and DCE) are the targeted contaminants.

A treatability study for PFAS may occur in the near future.

Plant treats water from 25 extraction wells across three separate site locations (two of which are partially located off base).

System components include, but not limited to

- A very recently installed supervisory control and data acquisition (SCADA) upgrade.

- 10,000 gal influent tank

- Two 6,000 lb. granular activated carbon vessels

- Four 2,000 lb. granular activated carbon vessels

- 8,000 gal effluent holding tank

- Backwash receiving tank

Plant treats about 7-8,000,000 gals per month with direct discharge to Union Creek.

South Base Boundary GroundWater Treatment Plant

SBBGWTP Well Fields

SBBGWTP Flow Diagram

TRAVIS AFB ERP

SITE DESCRIPTIONS

ERP Site Descriptions

Site DP039; Bldg 755

Site Description: Building 755 was the Travis AFB Battery and Electric Shop. The site consists of Building 755 and a former battery acid neutralization sump. Past operations have included the recharging and dismantling of lead-acid and nickel-cadmium batteries. Before 1978, lead-acid solutions were discharged into a sink inside Building 755. The pipeline from the sink led to a rock-filled sump approximately 65 feet northwest of the building. The sump was removed in 1993. Building 755 was vacated and demolished in 2009.

The list of chlorinated COCs for DP039 groundwater includes 1,1-dichloroethene (DCE), 1,2-DCA, 1,1,1-trichloroethane (TCA), 1,1,2-TCA, bromodichloromethane, methylene chloride, perchloroethene (PCE), and trichloroethene (TCE).

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 6 (Bioreactor, Phytoremediation, EVO Permeable Reactive Barrier, and EA) to address the residual dissolved solvent contamination.

Site Description: FT004 is in the northeastern part of Travis AFB and consists of the former Fire Training Area #3, an unoccupied 30-acre open field that was used to train fire fighters from about 1953 to 1962. Waste fuels, oils, and solvents were burned on open ground, contaminating the groundwater with chlorinated solvents, mainly trichloroethene (TCE).

The list of chlorinated COCs for FT004 groundwater include TCE, cis-1,2-dichloroethene (DCE), 1,2-dichloroethane (DCA), chloroform, bromodichloromethane, 1,1-DCE, vinyl chloride, and 1,4-dichlorobenzene (DCB).

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 2 (Monitored Natural Attenuation) to address the residual dissolved solvent contamination.

Site FT004; Fire Training Area 3

Site Description: FT005 is in the southeastern part of Travis AFB and consists of an unoccupied 30-acre open field that was used to train fire fighters from about 1962 to 1987. From 1962 to the early 1970’s, waste fuels, oils, and solvents were burned on open ground. From the early 1970’s to when Fire Training Area #4 was closed, only waste fuels were burned. These activities contaminated the groundwater with chlorinated solvents, mainly 1,2-dichloroethane (DCA).

The list of chlorinated COCs for FT005 groundwater include trichloroethene (TCE), 1,2-DCA, cis-1,2-DCE, chloroform, and bromodichloromethane.

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 3 (Groundwater Extraction and Treatment) to address the residual dissolved solvent contamination.

Site FT005; Fire Training Area 4

Site Description: LF006 is a former waste disposal landfill in the northeastern portion of Travis AFB that was operated from about 1943 through 1950. The waste contained chlorinated solvents, mainly trichloroethene (TCE), and petroleum fuel hydrocarbons that contaminated the local groundwater.

The list of chlorinated COCs for LF006 groundwater includes TCE and 1,1-dichloroethene (DCE).

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 2 (Monitored Natural Attenuation) to address the residual dissolved solvent contamination.

Site LF006; Landfill 1

Site Description: LF007 is a closed municipal landfill in the northeast corner of the base that was active from the 1950s to 1974. LF007 is divided into seven (7) subareas. Contaminated groundwater is found at Areas C and D. It is a NEWIOU site that was selected in the WABOU Soil ROD (Travis AFB, 2002a) as the location for the construction of the Corrective Action Management Unit (CAMU).

LF007C groundwater contains trichloroethene (TCE), vinyl chloride, 1,1-dichloroethene (DCE), 1,2-dichloroethane (DCA), and 1,2-dichloropropane. The groundwater COCs for LF007D are benzene, vinyl chloride, 1,4-dichlorobenzene, 1,1- DCE, chlorobenzene, 2,3,7,8-TCDD (equivalent), and Arochlors 1242 and 1248.

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 3 (Groundwater Extraction and Treatment) for LF007C and Alternative 2 (Monitored Natural Attenuation) for LF007D to address the residual dissolved solvent contamination.

Site LF007; Landfill 2

Site Description: LF008 was an inactive historical landfill consisting of a series of small, unlined trenches used to dispose of old pesticide containers. This disposal resulted in groundwater contamination with organochlorine pesticides, primarily alpha-chlordane.

The containers and contaminated soil were excavated in 2003, and residential soil cleanup standards were achieved.

The list of chlorinated COCs for LF008 groundwater includes aldrin, alpha-chlorodane, heptachlor, and heptachlor epoxide.

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 2 (Monitored Natural Attenuation) to address the residual pesticide contamination.

Site LF008; Landfill 3

Site Description: LF044, Landfill X, is not a landfill at all. It received this name, because the past activities at this site had not been completely identified at the start of the WABOU Remedial Investigation. It comprises approximately 25 acres and is located within Grazing Management Unit (GMU)-2, a 126-acre parcel of land that had been used to graze horses. The soil COCs are attributed to the asphalt and other construction debris that had been stockpiled onsite.

Soil contaminants include anthracene, acenaphthene, benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(g,h,i)perylene, chrysene, dibenz(a,h)anthracene, fluoranthene, indeno(1,2,3-c,d)pyrene, phenanthrene, bis(2-ethlhexyl)phthalate, cadmium, lead, and silver.

Selected Remedy: The WABOU Soil ROD (CH2M HILL, 2002) selectedAlternative 2 (Land Use Controls) to address the soil contamination.

Site LF004; Landfill X

Site Description: SD031 is a concrete and asphalt industrial area that is used by the Civil Engineer Maintenance Inspection and Repair Team (CEMIRT). Site SD031 covers approximately 5.5 acres and encompasses Facility 1205 in the northeastern part of the EIOU. Facility 1205 was constructed in 1957, and operations included the maintenance and repair of diesel-powered generators.

The list of chlorinated COCs for SD031 groundwater includes TCE, benzene, 1,1-DCE, cis-1,2-DCE, carbon tetrachloride, chloroform, 1,2-DCA, and vinyl chloride. An upcoming Remedial Investigation will identify the soil COCs at this site.

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 2 (Monitored Natural Attenuation)

Site SD031; Facility 1205

Site Description: SD033 consists of the West Branch of Union Creek, parts of Storm Sewer System B, Facilities 810 and 1917, the area around the South Gate, and Outfall II. Storm Sewer System B collects runoff from within the west side of the aircraft industrial area. This runoff enters Union Creek at Outfall II. Facility 810 is used to refurbish aircraft, and facility 1917 had sumps and an oil/water separator that were removed when facility 1917 was torn down.

The list of chlorinated COCs for SD033 groundwater includes trichloroethene (TCE), 1,1-dichloroethene (DCE), 1,2-dichloroethane (DCA), and cis-1,2-DCE.

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 2 (Monitored Natural Attenuation) to address the residual dissolved solvent contamination.

Site SD033; Storm Sewer System B, Facilities 810 & 1917, South Gate Area

Site Description: SD034 is located in the western part of the NEWIOU and consists of an aircraft wash rack facility with an oil/water separator (OWS) and an overflow pond. Leaks from the OWS resulted in a layer of Stoddard Solvent, containing dissolved solvents, floating on the groundwater table. The leaking OWS was replaced in 1994. The use of Stoddard Solvent to wash aircraft in Facility 811 was discontinued in September 2014.

The list of chlorinated COCs for SD034 groundwater includes trichloroethene (TCE), vinyl chloride, 1,1-dichloroethene (DCE), benzene, cis-1,2-DCE, and perchloroethene (PCE).

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 7 (Passive Skimming and EA) to address the residual solvent contamination.

Site SD034; Facility 811

Site Description: SD036 is located in the western part of the NEWIOU and consists of a number of multiple-use shops, including a wash rack and OWS.

The list of chlorinated COCs for SD036 groundwater includes vinyl chloride, tri-chloroethene (TCE), 1,1-dichloroethene (DCE), cis-1,2- DCE, 1,2-dichloroethane (DCA), benzene, bromodichloromethane, and perchloroethene (PCE).

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 5 (Emulsified Vegetable Oil and Enhanced Attenuation) to address the residual dissolved solvent contamination.

Site SD036; Facilities 872, 873, 876

Site Description: SD037 is in the western part of the NEWIOU and consists of Facilities 837, 838, 919, 977, and 981; the Area G Ramp; and the Ragsdale/V Street. Facility 838 has since been torn down. It also includes approximately 22,000 feet of sanitary sewer piping, an oil/water separator, sumps, wash racks, and a fuel hydrant system.

The list of chlorinated COCs for SD037 groundwater includes 1,1-dichloroethene (DCE), 1,2-dichloroethane (DCA), benzene, bromodichloromethane, carbon tetra- chloride, perchloroethene (PCE), trichloroethene (TCE), vinyl chloride, and cis-1,2-DCE.\

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 5 (Emulsified Vegetable Oil and Enhanced Attenuation) to address the residual dissolved solvent contamination.

Site SD037; Sanitary Sewer System, Facilities 837, 838, 919, 977, and 981, Area G Ramp, Ragsdale/V Area

Site Description: SS014 is a Jet Fuel Spill Area located along the jet fuel distribution pipeline in the southwestern industrial portion of the base. It consists of five distinct spill areas, three of which were determined in 2010 to require no further investigation or action. Soil and groundwater have been impacted by petroleum contamination at Subsite 1 (located in Fuel Storage Area G) and Subsite 3 (located along Taxiway L). SS014 is managed under the Petroleum-Only Contamination Program.

Selected Remedy: Monitored Natural Attenuation was selected as the final remedy at Site SS014, as documented in the POCO Sites SS014 and ST032 Remedial Action Report (CH2M HILL, 2011). In addition, the base initiated a technology demonstration at Subsite 1 in 2016 that will evaluate the effectiveness of using sulfate in a bioreactor to enhance anaerobic biodegradation of petroleum groundwater contaminants (total petroleum hydrocarbons and benzene).

Site Former Jet Fuel Spill Area

Site Description: SS015 consists of the Solvent Spill Area and the former Facilities 550 and 552. The SSA covers approximately 1.4 acres in an area previously used for stripping paint from aircraft and where solvent spills were reported to have occurred. Facility 552 consisted of a fenced, bermed, concrete pad constructed in 1964 and used as a temporary hazardous waste collection point. Facility 550 contained a corrosion control facility that treated and painted aircraft parts.

The list of chlorinated COCs for SS015 groundwater includes TCE, cis-1,2-DCE, vinyl chloride, 1,2-DCA, and PCE. Surface soil within the footprint of the former metals-plating shop in Facility 550 contains cadmium residue.

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 5 (Emulsified Vegetable Oil and Enhanced Attenuation) to address the residual dissolved solvent contamination. The NEWIOU SSSW ROD (URS, 2006) selected Alternative #17 (Land Use Controls) for this site’s soil.

Site SS015; Solvent Spill Area, Facilities 550, 552

Site Description: SS016 consists of a 7-acre parcel in the central part of the NEWIOU that contains the Oil Spill Area (OSA);

Facilities 11, 13/14, 20, 42/1941, and 139/144; and portions of the Storm Sewer Right-of-Way. The facilities within the site support flight line service equipment repair, aircraft engine repair, fuel storage, aircraft wash racks, and vehicle maintenance.

The list of chlorinated COCs for SS016 groundwater includes trichloroethene (TCE), cis-1,2-dichloroethene (DCE), vinyl chloride, benzene, chloroform, 1,4-dichlorobenzene (DCB), bromodichloromethane, 1,2-dichloroethane (DCA), 1,1-DCE, and perchloroethene

(PCE).

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 4 (Bioreactor and GET) to address the residual dissolved solvent contamination.

Site SS016; Oil Spill Area, Facilities 11, 13/14, 20, 42/1941, 139/144, Selected Sections of the Storm Sewer Right-of-Way

Site Description: SS029 is located in the southern portion of the NEWIOU. Site SS029 is an open field south of Taxiway R and includes an ordnance disposal range. Union Creek traverses the middle of the site and flows from northeast to southwest.

Groundwater contamination at Site SS029 has been defined primarily as a trichloroethene (TCE) and cis-1,2-dichloroethene (DCE) plume that lies within the boundaries of Travis AFB. The origin of the solvent contamination in the Site SS029 groundwater is unknown.

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 3 (Groundwater Extraction and Treatment) to address the solvent contamination.

Site SS029; Monitoring Well 329 Area

Site Description: SS030 is in the southern part of the NEWIOU and consists of a solvent plume from unknown historical activities on undeveloped land near the southern base boundary. The COC plume extends onto off-base private property that is used for animal grazing.

The list of chlorinated COCs for SS030 groundwater includes trichloroethene (TCE), chloroform, bromodichloromethane, and 1,2-dichloroethane (DCA).

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 3 (Groundwater Extraction and Treatment) to address the residual dissolved solvent contamination.

Site SS030; Monitoring Well 269 Area

Site Description: ST018 consists of the North/South Gas Stations which are located in the central portion of Travis AFB. Fuel leaks from underground storage tanks resulted in fuel and methyl tert-butyl ether contamination in the local groundwater. The site is managed under the Petroleum-Only Contamination (POCO) program. Soil has not been identified as a medium of concern at this site.

Selected Remedy: Groundwater Extraction and Treatment (GET) is the selected remedy to address MTBE contamination in the ST018 groundwater, and a GET system became operational in 2011. In 2014, the base received approval to discharge extracted groundwater to the sanitary sewer under authorization of the Fairfield-Suisun Sewer District. As a result, the treatment plant is no longer operating under the National Pollutant Discharge Elimination System (NPDES).

Site ST018; North/South Gas Stations

Site Description: ST027B is located in a restricted access area in the central part of the NEWIOU. It is bound by aircraft taxiways and parking ramps and consisted of buildings formerly used for fuel storage and aircraft engine testing. The portion of the plume with petroleum contamination is referred to as ST027A and is managed under a separate program. The portion of the plume with trichloroethene (TCE) contamination is referred to as ST027B.

The list of chlorinated COCs for ST027B groundwater includes TCE, vinyl chloride, cis-1,2-dichloroethene (DCE), benzene, and toluene.

Selected Remedy: The Travis AFB Groundwater ROD (CH2M HILL, 2014) selected Alternative 2 (Monitored Natural Attenuation)

Site ST027B; Facilities 1918, 1919,1754

Site Description: ST028 consists of Facility 363 which was constructed in 1948 and served as a fuel storage and pumping station, using 11 steel underground storage tanks to store gasoline, diesel, jet fuel, and used oil. Ten USTs were removed in 1986, and the last one was removed in 1995. Facility 365 consisted of 7 USTs that contained jet fuel; the USTs were removed by May 1995. This site is managed under the Petroleum-Only Contamination (POCO) program.

Selected Remedy: The POCO Sites ST027 and ST028 Remedial Action Report (CH2M HILL, 2008) established Monitored Natural Attenuation as the selected remedy. The revised final Site ST028 POCO Completion Report (CH2M HILL, 2017) documented the determination that Site ST028 meets all criteria for case closure in accordance with the State Water Resources Control Board’s Low- Threat Underground Storage Tank Case Closure Policy.

Site ST028; Facilities 363 and 365

Site Description: This site covers 22 acres and is in the central flightline area of Travis AFB. It consists of two contaminated groundwater areas. Plume A is in the vicinity of MW107x32, and Plume B is in the vicinity of MW246x32. Both plumes lie in open grassy fields and are surrounded by a runway, taxiways, and the aircraft parking apron. Aircraft operations are the only known uses for ST032. Travis AFB moved this site into the Petroleum-Only Contamination Program in 2009.

Selected Remedy: The Sites ST032 Remedial Action Report (CH2M HILL, 2011) established Monitored Natural Attenuation as the selected remedy. The final Site ST032 POCO Completion Report (CH2M HILL, 2017) documented the determination that Site ST032 meets all criteria for case closure in accordance with the State Water Resources Control Board’s Low-Threat Underground Storage Tank Case Closure Policy, issued in August 2012.

Site ST032; Monitoring Well 246 Area

Active Sites Not in the ORC

Potrero Hills

- There is no contamination from military activities.

- A former tenant released perchlorate onto their property and AF property.

- The former tenant is under a Water Board order to cleanup the site.

Closing Remarks

Please submit formal RFI’s (via Bidder Inquiry) in order to obtain official responses from the Government.