A.02.17 SOW_ENV-23-0038.pdf

SCOPE OF WORK

FY23 USAG Ansbach CCAN104 and CCAN126 Groundwater Remedial Action USAG Ansbach, Germany

CENAU-PP-EN

DEPARTMENT OF THE ARMY

CORPS OF ENGINEERS, EUROPE DISTRICT

CMR 410, BOX 4

APO AE 09096-0004

6 July 2023

CENAU-PP-EN 6 July 2023

ENV-23-0038

SCOPE OF WORK

Project: FY23 CCAN104 (USAEC-NE-JB-23131-00020) and CCAN126 (USAEC-NE-

JB-23131-00018) Groundwater Remedial Action Location: U.S. Army Garrison Ansbach, Germany

1. INTRODUCTION

This Scope of Work (SOW) contains requirements for providing all labor, materials, equipment, and services required to implement remedial actions (RA) concepts at CCAN104 GE43T (USAEC-NE-JB-23131-00020) and CCAN126 Building 5801 (USAEC-NE-JB- 23131-00018) outlined in the applicable Remedial Designs (Attachments 1, 2). Work is to be performed at Compliance Cleanup (CC) sites CCAN104 and CCAN126 Building 5801 which are located on Katterbach Kaserne, U.S Army Garrison (USAG) Ansbach, Germany.

This SOW will implement two (2) separate groundwater treatment systems (TS): TS2 shall apply to CCAN126 Building 5801, while TS3 will apply to CCAN104.

Chemical analysis conducted on groundwater samples shall include, but not be limited to:

BTEX (including Trimethylbenzene (TMB) isomers (1,2,3-TMB, 1,2,4-TMB, and 1,3,5-

TMB),

TPH (C5-10),

TPH (C10-C40)

CHC

AHC

Fe+2, Fe+3 Water chemistry characteristics per- and polyfluoroalkyl substances (PFAS)

The PFAS parameters are:

Perfluorobutanoic acid (PFBA) Perfluorohexanoic acid (PFHxA) Perfluorooctanoic acid (PFOA) Perfluorononanoic acid (PFNA) Perfluorobutane sulfonic acid (PFBS) Perfluorohexane sulfonic acid (PFHxS) Perfluorooctane sulfonic acid (PFOS) Perfluoropentanoic acid (PFPeA) Perfluoroheptanoic acid (PFHpA) Perfluorodecanoic acid (PFDA) Perfluoroheptane sulfonic acid (PFHpS) 1H,1H,2H,2H-Perfluorooctane sulfonic acid (H4PFOS) Perfluorooctane sulfonamide (PFOSA) Other PFAS compounds

The USAG Environmental Management Division (EMD) is tasked with management of soil and groundwater contamination sites at the Garrison installations. CC sites are subject to coordination between the Garrison, Installation Management Command Europe (IMCOM-E), US Army Environmental Command (USAEC), and HN regulators.

This SOW will implement concepts outlined in the Remedial Designs for CCAN104 (AECOM 2023a) and CCAN126 Building 5801 (AECOM 2023b); Attachment 1 and Attachment 2, respectively. Specificity within this SOW will supplant the attached Remedial Designs.

This SOW is divided into the following sections:

Section 1 – Introduction Section 2 – General Requirements Section 3 – Antiterrorism and Operations Security Requirements Section 4 – Description of Work

Task 1: Planning Documents Task 2: Treatment Area Pad Installation Task 3: Power Connection: Building 5801 to Pad Task 4: Water Permit Task 5: CCAN104 Remedial Action TS3 Installation and Start-up Task 6: Remedial Action TS3 Operation and Maintenance Task 7: CCAN104 Groundwater Monitoring Task 8: Reporting CCAN104 Task 9: CCAN126 Building 5801Remedial Action TS2 Installation and Start-up Task 10: Remedial Action TS2 Operation and Maintenance Task 11: Reporting CCAN126 Building 5801 Task 12: Ancillary Items Option Year 1.1: CCAN104: Repeat Tasks 6, 7, 8, 12 for one year Option Year 1.2: CCAN126: Repeat Tasks 10,11,12 for one year Option Year 2.1: CCAN104: Repeat Tasks 6, 7, 8, 12 for one year Option Year 2.2: CCAN126: Repeat Tasks 10,11,12 for one year

Section 5 – Performance Objectives Section 6 – Supplemental Information Section 7 – Points of Contact Section 8 – Period of Performance Section 9 – Reference

Attachment 1: AECOM 2023a. Final Remedial Design (100%) CCAN104 GE43T

Groundwater Remedial Design Katterbach Kaserne, USAG Ansbach, Germany. June 2023.

Attachment 2: AECOM 2023b. Building 5801 – PFAS IRA Ansbach, Remedial Design of the

PFAS Treatment System TS2, Design Katterbach Kaserne, USAG Ansbach, Germany. June 2023.

Attachment 3: WOOD 2019. FY17 CCAN104 and CCAN126 – GE43T, Remedial Investigation / Feasibility Study, U.S. Army Garrison Ansbach, Germany. December 2019.

Attachment 4: Diezinger 21 June 2023. City of Ansbach water extraction and water discharge permitting requirements letter.

Attachment 5: Bayrischen Landesamt für Umwelt (LfU) 2022. Leitlinien zur vorläufigen Bewertung von PFCVerunreinigungen in Wasser und Boden (version: July 2022).

Attachment 6: CCAN104 and CCAN126 Building 5801 USACE Quality Assurance Surveillance Plan (QASP)

1.1 CCAN 104 Background

Site CCAN104, “Former” Fire-Fighting Training Pit, is located at the Ansbach Army Heliport of the Katterbach Kaserne (ARLOC GE43T), USAG Ansbach, Germany. Contractor shall reference this site as CCAN104 in all documentation.

Site CCAN104 is approximately 230 m south of building (Bldg.) 5508 (Hangar 5) and within the inner airfield boundary fence (See Attachment 3, WOOD 2019). The training pit measures approximately 15x15 m (225 m2) and was used from approximately 1986 through 2001. Routine training events using PFAS-containing foams (aqueous film forming foams, AFFF) is considered the source of PFAS impact to soil and groundwater.

Site investigations have identified PFAS impacted groundwater in the area and downgradient of the former FFTP that requires remedial action via:

Water extraction Water treatment Hydraulic Containment Groundwater monitoring Discharge of treated groundwater

Groundwater discharged shall not exceed the following concentrations::

PFOS: 0.02 μg/L, PFAS (13 constituents): 0.2 μg/L.

1.2 CCAN126 Building 5801 Background

Site CCAN126 Building 5801 (Hangar #4) is located at the Ansbach Army Heliport of the Katterbach Kaserne, USAG Ansbach, Germany. (See Attachment 3). Contractor shall reference this site as CCAN126 Building 5801 in all documentation.

Site investigations have identified PFAS impacted groundwater in the area of CCAN126 Building 5801 that requires remedial action via:

Water extraction Water treatment Discharge of treated groundwater

Groundwater discharged shall not exceed the following concentrations::

PFOS: 0.02 μg/L, PFAS (13 constituents): 0.2 μg/L.

2. GENERAL REQUIREMENTS

The general requirements to be observed during this task order (TO) are as follows:

The Contractor shall provide a single point of contact (POC) to interact with the Government and to serve as the project manager. This POC shall be fluent in reading and speaking both English and German; possess exemplary writing skills in English and German; and shall have previous experience working with Host Nation (HN) authorities and the US Army. Additionally, the Contractor shall provide personnel who can (1) effectively present complex technical issues to U.S. Government personnel; (2) present the U.S. Government’s position to HN officials regarding those issues, and (3) possess the necessary technical skills to execute the activities included under this Task Order (TO).

Contractor is responsible for obtaining any permits and utility clearance required for the field activities.

All Health and Safety requirements and quality control (QC) measures generally described in the base contract and specifically detailed in the approved planning documents must be adhered to.

As needed, Contractor shall notify and coordinate with HN regulators for applicable approval(s) and or concurrence.

The work to be performed herein must comply with the following at a minimum: German Final Governing Standards (FGS - Germany); DoD Instruction 4715.8, "Environmental Remediation for DoD Activities Overseas"; DoD Manual 4715.05 G, Volume 1, Overseas Environmental Baseline Guidance Document”, appropriate U.S. DoD and U.S. Army Europe regulations; USEUCOM Directive 80-2; Army in Europe Regulation 200-1;

applicable HN regulations; and U.S. Army Corps of Engineers (USACE) regulations, polices, and guidance.

Contractor shall classify and offsite dispose of all wastes generated during investigation activities. Contractor is responsible for proper disposal of wastes generated during field activities. Contractor shall consider Deutsche Mantelver Ordnung requirements for all wastes generated.

All groundwater and soil sampling and laboratory analysis shall be performed with strict quality control using the methods and specifications set forth under the applicable U.S.

standard, similar HN, and/or international standards. For all HN standards used, Contractor shall provide a detailed summary (in English) of the HN standard in the workplan for CENAU PM review and approval. HN standards, if used, shall be referenced in the final Report.

The detailed summary of HN or international standards used shall include (but not limited to): methods used and detailed process or procedures for attaining the objectives.

Analyses shall be performed at a certified laboratory by a U.S. or HN regulatory authority, or accredited through the DoD Environmental Laboratory Accreditation Program, for the applicable test method and follows required quality assurance and quality control protocol.

In the absence of a certified laboratory, analyses may also be conducted at a laboratory that has an established reliable record of quality assurance compliance with standards for the applicable test method that are generally recognized by appropriate industry or scientific organizations. (DoD Manual 4715.05). The Contractor shall be able to furnish documentation of laboratory certification upon request.

The Contractor shall be responsible for collection, packing, labeling, proper holding, and transportation of all samples. The Contractor shall be responsible for final disposal of the environmental samples and other material derived in the process of the task order execution.

Collection of samples offsite (off USAG property) is prohibited.

Contractor shall ensure that sample holding times are not exceeded.

It is the Contractor’s responsibility to ensure that personnel, including subcontractors, working on this TO either have an installation access pass or must be placed on installation access roster in a timely fashion.

Upon request from the Government for review, it is the Contractor’s responsibility to provide a full and complete electronic version of any process and or citation that Contractor may reference in planning documents; reports; permits, etc.

The CC program tracking number (CCAN104_CCAN126 Building 5801) and shall be referenced on all submitted documents and email communications (include CC number and Task Order (TO)) on email header line).

It is assumed that nominal water provided by USAG will be available for the Contractor’s field efforts.

o For Garrison internal water tracking purpose, the Contractor shall either: 1) install meter reader for water when possible, or if not possible; 2) provide back calculations and estimates of water to quantify usage.

o Water consumption documentation shall be tracked on a quarterly basis (Jan-Mar, Apr-Jun, Jul-Sep, Oct-Dec) and submitted to garrison environmental management division (EMD) as an attachment to the report.

A sufficient power supply for the execution of active fieldwork (installation and construction of the TS2 and TS3 systems) cannot be guaranteed by USAG at the site. As necessary, Contractor shall provide a sufficiently dimensioned power supply (e.g., generator).

For the execution of active fieldwork (installation and construction) if nominal electricity is available and provided by USAG for the Contractor’s field efforts.

o For Garrison internal electricity tracking purpose, the Contractor shall either: 1) install meter reader for electricity when possible, or if not possible; 2) provide back calculations and estimates to quantify usage.

o Electricity consumption documentation shall be tracked on a quarterly basis (Jan- Mar, Apr-Jun, Jul-Sep, Oct-Dec) and submitted to garrison environmental management division (EMD) as an attachment to the report.

Specificity within this SOW will supplant the attached Remedial Designs (Attachments 1 and 2).

The Contractor shall ensure all contracted work is performed in accordance with all Federal, DoD and Agency acquisition regulations cited in Section G - Contract Administration Data, Section H - Special Contract Requirements, and Section I - Contract Clauses of the Base Contract including, but not limited to, Organizational Conflicts of Interest and Data Rights.

2.1 Other Contract Considerations

This is not a personal services contract. The Contractor shall only accept direction for work and from the USACE Project Manager (CENAU PM.) The CENAU PM shall be the Contractor’s focal point of contact. Contractor shall only perform work listed in this SOW.

The SOW requires careful coordination of project activities to ensure that all stakeholders are kept informed of the project status, existing or potential problems, and any changes required to prudently manage the project and meet the needs of the Garrison's project stakeholders and decision-makers. The Contractor shall be responsible for the following project management activities:

2.1.2 Project Management Plan and Schedule

The Contractor shall develop and maintain a detailed Project Management Plan (PMP). The PMP, based on the schedule prepared as part of the Contractor proposal, will specify the schedule, technical approach, and resources required for the planning, execution, and completion of the performance objectives. The first draft of the PMP will be due within thirty (30) calendar days of contract award. The draft PMP and subsequent revisions will be subject to Army review and approval through the Contracting Officer’s Representative (COR). The final PMP will be due within fifteen (15) calendar days of comments received from the COR. A payment milestone will be established for Army approval of the final PMP through the COR.

As part of the PMP, the Contractor shall develop and maintain an activity-based schedule that fully supports the technical approach and outlines the due dates for all milestones and payable deliverables. A payment plan will be included with the schedule that allows for payments to the Contractor based on successful completion of interim milestones proposed by the Contractor. It is the Army’s intent to make all payments after verification of progress in accordance with this schedule. The Contractor shall coordinate activities with the COR to ensure that the proposed project schedule does not conflict with other contractor activities on site, or interrupt Installation mission activities.

As part of the PMP, the Contractor shall identify and implement a means for providing quarterly project status reports to the COR.

2.1.3 Milestones

The Contractor may propose a revision of the milestones below to reflect their PMP and provide for interim milestones. Interim milestones will only be accepted if they represent significant progress toward milestone completion, and completion of these interim steps can be measured and demonstrated. As noted, payments will be tied to the successful completion major milestones listed below or an interim milestone plan approved by the CENAU PM. All proposed interim milestones will be associated with easily demonstrated metrics tied to performance measurements (e.g., resolution of comments on a draft, acceptance of a final report, or acceptance of a data submittal or meeting minutes). All milestones must have a defined means for demonstrating completion to facilitate certification and approval (see Section 2.4, Certification and Approval of Project Milestones and Deliverables).

Major Milestones

Approval of the updated Project Management Plan (PMP), Work Plan, QA/QC-Plan, Health and Safety Plan (HASP)

Completion of Tasks: 2, 3, 5, 9 Approval of the Annual Report(s).

2.1.4 Certification and Approval of Project Milestones and Deliverables

The COR will perform contract management, inspection, oversight, review, and approval activities. Certification and approval of project milestones by the COR is necessary before distribution of financing payments. Certification by the CENAU PM is also contingent upon the Contractor performing in accordance with the terms and conditions of the contract for this work, this SOW, and all amendments.

Representatives of CENAU and the Contractor shall have a conference with the COR in a manner and at a time agreed to by all parties after receipt of each status report to:

Formally review the quantity and quality of services.

Inspect work for compliance with this SOW, the associated Contractor's final proposal, and project documentation.

Accept or reject milestones and deliverables completed since the previous review.

3. ANTITERRORISM (AT)/OPERATIONS SECURITY (OPSEC) REQUIREMENTS

Antiterrorism (AT) and Operations Security (OPSEC) are required for all Contractor employees with an area of performance within an Army installation, facility, or area.

3.1 General Security Requirements and Guidance

The security requirements described below apply to all contract personnel (including employees of the prime Contractor (“Contractor”) and all subcontractor employees) supporting the performance requirements of this contract. The Contractor is responsible for compliance with these security requirements. Questions regarding security matters shall be addressed to the designated Government representative (e.g., Contracting Officer Representative (COR), Requiring Activity (RA) representative, or Contracting Officer (if a COR or other RA representative is not appointed)). Contract personnel are critical to the overall security and safety of US Army Corps of Engineers (USACE) installations, facilities and activities, and security awareness training contributes to those efforts. The Department of Defense (DoD) and Army security training requirements specified below, if applicable, are performance requirements; all applicable contract personnel shall complete initial training within thirty (30) days of contract award or the date new contract personnel begin performance on the contract. Within five (5) business days from the completion of training, the Contractor shall provide written documentation (e.g., email or memorandum) to the Government representative.

The documentation shall include the names of contract personnel trained and which training they completed; the Contractor shall maintain training records as part of their contract files and be prepared to provide copies of training certificates to the Government representative. Contractor personnel and vehicles are subject to search when entering federal installations. Additionally, all contract personnel shall comply with Force Protection Condition (FPCON) measures, Random Antiterrorism Measures (commonly referred to as “RAMs”), and Health Protection Condition (HPCON) measures. The Contractor is responsible for meeting performance requirements during elevated FPCON and/or HPCON levels in accordance with applicable RA plans and procedures— this includes identifying mission essential and non-mission essential personnel. In addition to the changes otherwise authorized by the changes clause of this contract, should the FPCON or HPCON levels at any individual facility or installation change, the Government may implement security changes that affect contract personnel. The Contractor shall ensure all contract personnel are aware of their security responsibilities, including any site-specific requirements identified in local policies or procedures.

3.2 Antiterrorism (AT) Level I Training

All Contractor employees, to include subcontractor employees, requiring access Army installations, facilities and controlled access areas shall complete AT Level I Awareness training within 30 calendar days after contract start date or effective date of incorporation of this requirement into the contract, whichever is applicable. The Contractor shall submit certificates of completion for each affected Contractor employee and subcontractor employee, to the COR or to the contracting officer, if a COR is not assigned, within 5 calendar days after completion of training by all employees and subcontractor personnel. AT level I Awareness training is available at the following website: http://jko.jten.mil (https://www.jcs.mil/JKO) (website subject to change).

3.3 Physical Security and Access Control Requirements

Contractor and all associated subcontractor employees shall provide all information required for background checks to meet installation access requirements to be accomplished by installation Provost Marshal Office, Director of Emergency Services or Security Office. Contractor workforce must comply with all personal identity verification requirements (FAR clause 52.204‐9, Personal Identity Verification of Contractor Personnel) as directed by DOD, HQDA and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any individual facility or installation change, the Government may require changes in Contractor security matters or processes.

For Contractors that do not require CAC, but require access to a DoD facility or installation, Contractor and all associated sub‐contractors employees shall comply with adjudication standards and procedures using the National Crime Information Center Interstate Identification Index (NCIC‐III) and Terrorist Screening Database (Army Directive 2014‐05/AR 190‐13), applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative); or, at OCONUS locations, in accordance with status of forces agreements and other theater regulations.

3.4 Suspicious Activity Reporting Training (e.g., iWATCH, CorpsWatch, or See

Something, Say Something)

The Contractor and all associated sub‐contractors shall brief all employees on the local iWATCH Army program (training standards provided by the requiring activity ATO). This local developed training will be used to inform employees of the types of behavior to watch for and instruct employees to report suspicious activity to the COR. This training shall be completed within 30 calendar days of contract award and within 30 calendar days of new employees commencing performance with the results reported to the COR NLT 5 calendar days after contract award.

3.5 Requirement for OPSEC Training

Per AR 530‐1, Operations Security, the Contractor employees must complete Level I OPSEC Awareness training. New employees must be trained within 30 calendar days of their reporting for duty and annually thereafter.

4. DESCRIPTION OF WORK

4.1 Task 1 - Planning Documents

The Contractor must submit a work plan (WP) which includes, at a minimum, the following:

Figures: location of USAG Ansbach relative to all CC program sites within USAG Ansbach Katterbach Kaserne, sites CCAN104, CCAN126 Building 5801; Site monitoring wells, groundwater flow direction including depth to groundwater, etc.

General sections including the project location, background, and purpose.

Contractor personnel assignments, responsibilities, and contact information.

Subcontractor qualifications including laboratory certifications.

Soil and water sampling procedures.

Detailed sampling and reporting schedule.

Field procedures for all activities, e.g., water sampling (including applicable field blanks and QA/QC samples), etc.

All groundwater and soil sampling shall be performed with strict quality control using the methods and specifications set forth under the appropriate US standard and or similar HN standards. If HN standards (comparable with US standards) are used, Contractor shall provide a detailed summary (in English) of the HN standard.

Laboratory methods, detection limits, sample holding times, chemical quality control, applicable laboratory QA/QC, blanks, laboratory spikes, matrix spikes, etc.

Decontamination and waste management practices.

A Contractor Quality Control Plan (CQCP) as an attachment.

An Accident Prevention Plan (APP) with Site Safety and Health Plan (SSHP) as an attachment.

A PMP and schedule as described in Section 2.1 as an attachment.

Deliverables:

Electronic copy (Draft and Final) in English shall be delivered by the Contractor to CENAU

PM and the USAG POC.

4.1.1 Contractor Quality Control Plan (CQCP)

The Contractor must provide a CQCP which:

Identifies the Contractor QC team including qualifications, roles and responsibilities.

Addresses methods for conducting internal audits for field activities and deliverables.

Lists the definable features of work (DFW).

Provides a schedule of QC activities, i.e., when QC will be performed for each DFW.

Includes names and numbers of standards, along with an English summary of key aspects of each standard that work will be evaluated.

Describes the corrective action (CA) process and includes a CA form.

Contractor

The Contractor shall refer to the Government’s Quality Assurance Surveillance Plan (QASP) which sets forth the procedures and guidance that the COR will use in evaluating the technical and quality performance of the Contractor in accordance with the terms and conditions of the applicable sow of work (SOW) or Scope of Work (SOW). A copy of the signed final plan will be furnished to the awardee so that the Contractor shall be aware of the methods that the COR will use in evaluating performance of this contract. The Contractor shall provide Quality Control, per the base contract, whenever sampling or analysis for chemical constituents is required to achieve milestones.

Quality control for traditional environmental media sampling shall also be included. All laboratories to be used by the Contractor must be accredited with the Host Nation German Accreditation Council, Deutschen Akkreditierungsrat (DAR). Effective October 1, 2009, laboratory (ies) to be used by the Contractor to perform testing in support of the DoD environmental restoration programs must be either accredited in accordance with DoD Environmental Laboratory Accreditation Program (ELAP) or accredited in accordance with the International Organization for Standardization (ISO)/International Electrotechnical Commission (IEC) standard 17025.

Government

CENAU will also independently review Contractor work to ensure compliance with all applicable requirements as detailed in the QASP. CENAU, USAG and HN Stakeholder POCs for this contract will be provided at the project kick-off and shall be clearly stated in the Contractor and Government documents.

Contractor QC is a management system for completing work and producing deliverables complying with the terms of the contract. It encompasses all phases of the work such as approval of submittals, procurement, storage of materials and equipment, coordination of subcontractor activities, analytical efforts, and delivery of final products. Contractor QC also includes all the inspections and tests necessary to ensure that the correct materials and work methods are used to produce the required product. The Contractor and the Government both have a role in obtaining quality deliverables consistent with contract requirements.

The Contractor is responsible for all aspects of QC on this TO. Prepared deliverables (i.e., plans, reports, maps, calculations, etc.) must be reviewed by technically qualified professionals who have not been directly involved in development of the product, but who have the qualifications to review the product for grammatical and technical quality. Such reviews must be conducted prior to submittal to the Government to ensure documents are complete, logical, accurate and clearly articulated. To facilitate this effort, the Contractor must establish an inspection system acceptable to the Government

4.1.2 Accident Prevention Plan with Site Safety and Health Plan

The APP and SSHP must comply with all applicable requirements of the USACE Safety and Health Manual (EM 385-1-1) and with all applicable German Laws/standards. Any actions required to protect the surrounding community and other third parties (e.g., site visitors) must be included. Health and safety standards for working at the site must be observed during all site activities. The APP/SSHP must include a hazard analysis worksheet for all activities expected under the TO, as well as a detailed emergency notification plan for potential injuries: Minor (e.g., first aid); Moderate (e.g., medical treatment); Major (e.g., lost/restricted work); Critical (e.g., permanent impalement /long term injury); Catastrophic (e.g., fatality, multiple major incidents), etc.

4.2 Task 2: Water Treatment Area and Concrete Pad Installation

This SOW will implement concepts outlined in the Remedial Designs for CCAN104 (AECOM 2023a) and CCAN126 Building 5801 (AECOM 2023b); Attachment 1 and Attachment 2, respectively. Specificity within this SOW will supplant the attached Remedial Designs.

Contractor shall construct a new Treatment Area adjacent to the rainwater retention basins along Ring Road; north of buildings 9019 and 5801. Contractor shall prepare the site and construct a Treatment Area within the fenced area adjacent to the rainwater retention basins RRB03 and RRB04. To the extent practicable, Contractor shall maximize the allowable area for treatment systems as well as the concrete pad(s) to allow for future needs. Concrete slab(s) minimum size 15 meters by 10 meters shall be constructed.

Contractor shall remove existing concrete storage pads prior to installation of the new treatment area. Adjacent to the rainwater retention basins RRB03 and RRB04 are two (2) concrete material storage areas (concrete pads including berms). Contractor shall demolish the existing concrete material storage areas, remove, and offsite dispose all concrete and associated materials which is approximately ten (10) meters by seven (7) meters.

Deliverables:

In a short letter-type report, Contractor shall prepare a summary of field work activities and a statement that the work has been completed.

Electronic version of a Letter Report (1 x English) shall be delivered to USAG POC and CENAU PM via email.

4.3 Task 3: Power Connection: Building 5801 to Pad

This SOW will implement concepts outlined in the Remedial Designs for CCAN104 (AECOM 2023a) and CCAN126 Building 5801 (AECOM 2023b); Attachment 1 and Attachment 2, respectively. Specificity within this SOW will supplant the attached Remedial Designs.

To the extent practicable, Contractor shall maximize the electrical power for the Treatment Area for treatment system(s) to allow for potential additional treatment system(s) in the future.

Contractor shall install a power line(s) equal to a minimum 300 Amps, to be installed from the power supply connection point at Building 5801 to a treatment area electrical main.

The power line(s) will be laid in an empty conduit which will be installed below ground, crossing beneath the Ring Road. The power cable(s) shall be fixed PVC underground cable. The estimated overall length of the power cable is approximately 103-115 meters. The estimated length of associated trenching is approximately 65-75 meters. Contractor shall install a weatherproof electrical distribution box (main) at the location of the Treatment Area to supply power unit for the Treatment Area (minimum 300 Amps). The main will be fuse protected, containing a load center of no less than four (4) fused electrical circuits each 64 Amps with CE-certified electricity meter.

Deliverables:

In a short letter-type report, Contractor shall prepare a summary of field work activities and a statement that the work has been completed.

4.4 Task 4: Water Permit

The remedial actions detailed in the Remedial Designs and this SOW for CCAN104 and CCAN126 Building 5801 require review and approval by the responsible Water Board Ansbach (Wasserwirtschaftsamt) and the City of Ansbach – Environmental Agency (Umweltamt der Stadt Ansbach) for the purpose of acquiring required extraction and discharge permits for the extraction of groundwater and operation of the subject treatment systems. See City of Ansbach letter (21 June 2023) for water extraction and water discharge permitting requirements; Attachment 4.

An application under water law in accordance with the Water Resources Act (WHG 2021) and the Bavarian Water Act (BayWG 2010) for the extraction, treatment, and discharge of groundwater must be submitted for approval to the responsible environmental office (“Umweltamt”) of the city of Ansbach.

Water permitting is a critical path element that will require time for approvals. The Contractor shall ensure permitting activities commence as soon as possible following Work Plan approval.

Contractor shall prepare all required documentation for a new water permit for both the CCAN104 and CCAN126 Building 5801 remediation actions detailed in this SOW, for application to the Blma. Submission of the package to the Blma is not the responsibility of the Contractor. The documentation will discuss all relevant water related topics to include, but not limited to discharge, percolation, injection, pumping, drilling, groundwater protection measurements, etc.

Deliverables:

Complete draft permit package, in English and in German, for USAG POC and CENAU PM review. Electronic only via email.

A brief English summary of the permit package contents and, as applicable, potential issues requiring CENAU PM and or USAG POC early engagement. Electronic only via email.

Following approval from USAG POC and CENAU PM, Contractor shall complete a Final permit package, in English and in German. Electronic via email and hardcopy by postal delivery.

4.5 Task 5 – CCAN104 Remedial Action TS3 Installation and Startup

As detailed in the Remedial Design for CCAN104 (AECOM 2023a), Contractor shall implement the remedial action for groundwater extraction and treatment of the impacted groundwater.

Specificity within this SOW will supplant the attached Remedial Designs

Contractor must select the most efficient methods for all field work. Contractor shall ensure there is no cross-contamination between samples. Contractor must select the most efficient methods for sampling and analysis. Final well depth will be field conditions dependent. Prior to beginning field activities, the Contractor shall obtain all necessary digging permits, utility clearances, and HN water extraction and discharge permits. TS3 operational power is at no cost to Contractor.

Field work will include, but not limited to:

Installation of two (2) new monitoring wells (over-drilling existing GWM37, and a second new monitoring well to be identified as GWM92A south of GWM37 as per AECOM 2023a). Each new well shall be up to a depth of thirty (30) meters below ground level (bgl). Field conditions will dictate final depths.

Installation of six (6) new shallow extraction wells up to a depth of eight (8) meters bgl:

GWM86; GWM87; GWM88; GWM89; GWM90; GWM91.

Following well installation and purging, all eight (8) new wells listed above shall be initially sampled one (1)-time for a set of basic parameters following guidance provided in chapter 3.1.1 of Bavarian State guideline 3.8/1, which specifies sampling requirements for newly installed wells (parameters as per table 2 of appendix 3 of the guideline., but without biotest). This effort can be combined with the baseline sampling for the site described below, by extending the set of parameters for the eight (8) newly installed wells to comply with guidance provided in Bavarian State guideline 3.8/1, chapter 3.1.1 (See Attachment 5).

Groundwater extraction from eight (8) wells (below are estimated rate per minute).

o GWM37 location (NEW deeper well) -: 15.5 L/min o GWM70- 15.5 L/min o GWM78A -1 L/min o GWM86- 0.5L /min o GWM87- 0.5L /min o GWM88- 0.5L /min o GWM89- 0.5L /min o GWM90- 0.5L /min o GWM91- 0.5L /min

TS3 Treatment system Installation o TS3 Design / Treatment Technology o Commercially available ion exchange resin media, shall be used in the adsorbent filters for the adsorption of PFAS from the water.

Water Transfer to TS3 from extraction wells o A backflow prevention device will be placed at the location of any pipe joints where water from other wells is entering the main water transfer pipe.

o A backflow prevention device will be placed at the top of each extraction well in the vertical orientation.

Trenching Pipe Installation TS3 power supply connection to main (see Task 3)

Outlet shaft construction, new vertical outlet shaft #4 (aka “Structure 4”) o Will serve for the combined treated water discharge of TS2 and TS3 that will ultimately be discharged to Katterbach Creek.

o Shall be sized to account for the treatment area to allow for future needs.

TS3 connection to new outlet shaft #4 (aka “Structure 4”)

Baseline Groundwater Monitoring Schedule

Static water levels: Contractor must conduct static water level (SWL) measurements prior to the GWM well sampling event; SWLs must not be collected within 48 hours during or after a significant precipitation event.

Low Flow Sampling (also called “Low-Stress”) and Purging shall use a submerged pump that can be adjusted to deliver ground water to the surface; ideally, the flow rate of water from the pump will approximate, or be less than, that entering the well from the surrounding formation. The purpose of this technique is the recovery of representative samples of the water in the formation adjacent to the well screen as it does not cause excessive movement of water from the soil formation into the well. Stagnant water above the screen and below will not usually be purged or sampled.

High pumping rates and bailers may increase the turbidity of samples, introduce aeration and sample agitation, cause mixing of chemically distinct water zones within the aquifer, and shall not be used. During groundwater sampling purging, the Contractor shall monitor, at a minimum, the following water quality parameters until three (3) consecutive readings meet the following requirements: temperature (within 0.5 °C), pH (within 0.1 unit), oxidation-reduction potential (within 10 millivolts), specific conductance (within one (1) per cent), dissolved oxygen (within 1 milligram per liter), turbidity (less than 50 NTU), and, water level (drawdown less than 0.1 meters).

Baseline Groundwater sampling will be collected from twenty-one (21) wells: GWM37;

GWM39; GWM40; GWM70; GWM71; GWM78A; GWM78B; GWM79A; GWM80A;

GWM81A; GWM82A; GWM84A; GWM84B; GWM85A; GWM86; GWM87; GWM88;

GWM89; GWM90; GWM91, GWM92A

Baseline Static water levels (SWLs) will be collected from twenty-three (23) wells: GWM37;

GWM38; GWM39; GWM40; GWM70; GWM71; GWM72; GWM73; GWM78A; GWM78B;

GWM79A; GWM80A; GWM81A; GWM82A; GWM84A; GWM84B; GWM85A; GWM86;

GWM87; GWM88; GWM89; GWM90; GWM91, GWM92A

Field testing methods may be used for water quality parameters (minimum pH, temperature, and, conductivity). Table 1 is the baseline groundwater monitoring schedule for TS3

Table 1: Baseline groundwater monitoring Baseline Description Frequency

GW

Sampling

GW # GW

QC

Frequency

SWL

SWL

Total

GW

Total

SWL

Before extraction operation (baseline)

One (1) time

21 2 One (1) time 23 24 24

10% QC samples required for GW baseline sampling event Baseline samples will be analyzed for: PFAS, CHC, AHC, TPH, BTEX (including TMB), Fe+3, Fe+3, Mn, NO3- and other applicable water chemistry characteristics such as field-test parameters as per table 2, appendix 3 of Bavarian State guideline 3.8/1

Deliverables:

In a short letter-type report, Contractor shall prepare a summary of field work activities and a statement that the TS3 installation and system startup work has been completed.

Electronic version of a Letter Report (1 x English) shall be delivered to USAG POC and

CENAU PM via email.

4.6 Task 6 – CCAN104 Remedial Action TS3 Operation and Maintenance

Water quality monitoring will be conducted at TS3 sample points (three); (see AECOM 2023a Figure A-16): raw water inlet; mid-point (F2.01-F2.02); outlet (F2.03).

Field testing methods may be used for water quality parameters (minimum pH, temperature, and conductivity). Table 2 below shows the monitoring schedule for TS3 system operation:

Table 2: TS3 System Operation Monitoring

TS3 System Operation Monitoring Description Frequency

TS3*

TS3 # TS3 #

QC

Total #

TS3

Start-up to Month 1 weekly 3 1 16

Month 2 weekly 3 1 16 Month 3 weekly 3 1 16 Month 4 Bi-weekly 3 1 8 Month 5 Bi-weekly 3 1 8 Month 6 Bi-weekly 3 1 8 Month 7 monthly 3 1 4 Month 8 monthly 3 1 4 Month 9 monthly 3 1 4

Month 10 monthly 3 1 4 Month 11 monthly 3 1 4 Month 12 monthly 3 1 4

1 Year onward monthly 3 1 48

* Bi-weekly occurring once every two (2) weeks.

10% QC samples required for TS3 operation sampling events Month : assume standard 4 weeks per month.

“Months 1- 12” are in the first year of operation “1 year onwards” are each subsequent year after year one (1).

All Remedial Action TS3 samples will be analyzed for PFAS. Inlet (raw water) samples will also be analyzed for sulfate, nitrate, alkalinity, chloride, Total Organic Carbon, and Total Dissolved Solids. Chemistry characteristics. (Please see Table 7 of Attachment 1, AECOM 2023a).

4.7 Task 7 – CCAN104 Groundwater Monitoring

For well details for the existing wells see Attachments 1, 2 and 3. Samples shall be collected using low flow sampling techniques.

Static water levels: Contractor must conduct static water level (SWL) measurements prior to the GWM well sampling event; SWLs must not be collected within 48 hours during or after a significant precipitation event.

Low Flow Sampling (also called “Low-Stress”) and Purging shall use a submerged pump that can be adjusted to deliver ground water to the surface; ideally, the flow rate of water from the pump will approximate, or be less than, that entering the well from the surrounding formation. The purpose of this technique is the recovery of representative samples of the water in the formation adjacent to the well screen as it does not cause excessive movement of water from the soil formation into the well. Stagnant water above the screen and below will not usually be purged or sampled.

High pumping rates and bailers may increase the turbidity of samples, introduce aeration and sample agitation, cause mixing of chemically distinct water zones within the aquifer, and shall not be used.

During groundwater sampling purging, the Contractor shall monitor the following water quality parameters until three (3) consecutive readings meet the following requirements: temperature (within 0.5 °C), pH (within 0.1 unit), oxidation-reduction potential (within 10 millivolts), specific conductance (within one (1) per cent), dissolved oxygen (within 1 milligram per liter), turbidity (less than 50 NTU), staining, odor, and water level (drawdown less than 0.1 meters).

Contractor shall conduct Groundwater sampling collection from twenty-one (21) wells: GWM37;

GWM39; GWM40; GWM70; GWM71; GWM78A; GWM78B; GWM79A; GWM80A;

GWM81A; GWM82A; GWM84A; GWM84B; GWM85A; GWM86; GWM87; GWM88;

GWM89; GWM90; GWM91, and, GWM92A.

Static water levels (SWLs) will be collected from twenty-four (24) wells: GWM37; GWM38;

GWM39; GWM40; GWM70; GWM71; GWM72; GWM73; GWM78A; GWM78B; GWM79A;

GWM80A; GWM81A; GWM82A; GWM84A; GWM84B; GWM85A; GWM86; GWM87;

GWM88; GWM89; GWM90; GWM91; GWM92A.

Field testing methods shall be used for water quality parameters (minimum pH, temperature, and conductivity). Table 3 is the groundwater monitoring schedule for CCAN104.

Table 3: CCAN 104 Groundwater Monitoring Schedule

CCAN104 Groundwater Monitoring Description Frequency

GW Sampling

GW # GW

QC

Frequency

SWL*

SWL

Total #

GW

Total #

SWL

* Bi-weekly occurring once every two (2) weeks.

10% QC samples required for GW sampling events Month: assume standard 4 weeks per month.

“Months 1- 12” are in the first year of operation “1 year onwards” are each subsequent year after year one (1).

Groundwater monitoring samples will be analyzed for PFAS.

4.8 Task 8 – Reporting CCAN104

Contractor shall prepare:

Quarterly standalone letter reports Annual report

On a quarterly basis (Jan-Mar, Apr-Jun, Jul-Sep, Oct-Dec), Contractor shall prepare a stand-alone letter report (without version) that briefly describes the cumulative results of the applicable quarter sampling events and TS3 system operations. All four (4) quarter letter reports are required. For outyear reporting associated with Option years (e.g., Option Year 1, etc.), quarterly standalone letter reports will be required.

Deliverables:

Quarterly stand-alone letter reports, in English, electronic only submitted via email.

Annual Report Contractor shall prepare a full assessment Annual Report after approximately 11 months of TS3 operation and groundwater monitoring, the Contractor shall prepare a full assessment report.

Assessment shall include evaluation of new data, along with comparison to historical data sets available for the site and comply with the water discharge permit. The Report shall provide useable, defensible, and acceptable information according to applicable regulations, polices, and guidance discussed in Section 2 (General Requirements) of this SOW.

Start-up to Month 1 weekly 21 2 Weekly 24 92 96

Month 2 monthly 21 2 Bi-weekly 24 46 48 Month 3 monthly 21 2 Bi-weekly 24 46 48 Month 4 monthly 21 2 Monthly 24 23 24 Month 5 monthly 21 2 Monthly 24 23 24 Month 6 monthly 21 2 Monthly 24 23 24 Month 7 monthly 21 2 Monthly 24 23 24 Month 8 monthly 21 2 Monthly 24 23 24 Month 9 monthly 21 2 Monthly 24 23 24

Month 10 monthly 21 2 Monthly 24 23 24 Month 11 monthly 21 2 Monthly 24 23 24 Month 12 monthly 21 2 Monthly 24 23 24

1 Year onward quarterly 21 2 Monthly 24 92 96

For outyear reporting associated with Option years (e.g., Option Year 1, etc.), Annual Reports will be required after approximately 11 months of TS3 operation and groundwater monitoring from Option award.

Draft reports will be submitted to CENAU PM and USAG POC. Government reviewers will not accept a report deemed insufficient for scientific presentation, clarity, organization, or a high standard of grammar. The Report shall have a table of contents, executive summary, introduction, description of field program, and discussion of results, conclusions, and recommendations (if any). The Report shall include, but not be limited to, the following:

An Executive Summary.

Operational data for the TS3 including the annual and cumulative total extracted and discharged water, maintenance activities, adjustments any downtime incurred and the reasons for the downtime, influent and effluent results and other information deemed pertinent to the operation of the system.

A discussion of the specific sampling and analytical procedures used, and detection limits for all testing methods, to include citations of any standards used, along with English summary translations.

Groundwater sampling results and SWLs shown in tables and on figures. Tables with concentrations shall also include regulatory standard concentrations with those concentrations exceeding the standard highlighted. All tables shall be in English.

A discussion of the hydraulic conditions, including a general capture analysis and long-term groundwater elevation trends.

Calculation and discussion of PFAS mass discharge from extraction wells (total, individual, cumulative).

Trend analysis for wells with: PFAS, CHC, AHC, TPH, and BTEX contamination, including a statistical evaluation of trends (may require trend analysis at different time intervals).

Pdf-files used for electronic reports shall include bookmarks reflecting the table of content of the document. Also, appendices, tables, and figures shall be marked with bookmarks.

In the final version, all electronic reports need to be submitted as one (1) comprehensive pdf-file.

All data presented must be in accordance with the IMCOM geospatial data standards and existing GIS systems at the USAG.

An evaluation of the extent and degree of groundwater impacts, conclusions, and recommendations.

Electronic copy Draft Annual Report (1 x English and 1 x German) shall be delivered by the Contractor to CENAU PM and USAG POC.

Electronic copy Draft Annual Report (1 x English) shall be delivered by the Contractor to CENAU PM and USAG POC.

Electronic copy of the Final Annual Report (1 x English and 1 x Germany) shall be delivered to the CENAU PM and USAG POC. Electronic version shall include all attachments and appendices.

NOTE: In coordination with CENAU PM and the Garrison POC, Contractor shall be prepared to provide redacted versions of the final report in German and English meeting publication requirements to comply with the Bavarian Environmental information law (BayUIG, German FOIA equivalent), at no additional cost to the Government.

4.9 Task 9 – CCAN126 Building 5801 Remedial Action TS2 Installation and Startup

As detailed in the Remedial Design for CCAN126 Building 5801 (AECOM 2023b), Contractor shall implement the remedial action for groundwater extraction and treatment of the impacted groundwater. Specificity within this SOW will supplant the attached Remedial Designs. TS2 operational power is at no cost to Contractor.

The Contractor must select the most efficient methods for all field work. Contractor shall ensure there is no cross-contamination between samples. Contractor must select the most efficient methods for sampling and analysis. Prior to beginning field activities, the Contractor shall obtain all necessary digging permits and utility clearances.

Field work will include, but not limited to:

Installation of one (1) new vertical extraction structure and infrastructure.

Groundwater extraction from one (1) well (estimate rate per minute).

NOTE: A backflow prevention device will be placed at the top of the extraction well in the vertical orientation.

o Sump Drainage 105009A – 0.2l/s – 1l/s Estimated groundwater treatment volumes TS2:

Q = 12L/min = 17.3 m³/day (Qmax. = 60L/min = 86.4 m³/day)

TS2 Treatment system Installation o Commercially available adsorption media ion exchange resin, shall be used in the adsorbent filters for the adsorption of PFAS from the water.

Water Transfer to TS2 from extraction wells o A backflow prevention device will be placed at the location of any pipe joints where water from other wells is entering the main water transfer pipe.

o A backflow prevention device will be placed at the top of the extraction well in the vertical orientation.

Locate Existing Drainage Pipe 2 (DN500, “Pipe 2”) Locate Existing…