AMARG QAs Gov Responses Dated 20260603.pdf

DATED: 03JUN2026

# Question Government Response

1 Is there a planholder’s list that accompanies this project? If so, may I please get a copy? There is no "planholders" listing.

2 Is there an estimated budget or value?

An estimate is not being disclosed for the project. Please submit your quote based on your independent analysis of the solicitation requirements.

3 Has a start date been determined for the work?

The period of performance of the contract is anticipated to begin on or before 31 August 2026 with required completion by 20 December 2027.

4 Are there any union requirements?

Please ensure to adhere to the solicitation's requirements. Per SOW Appendix D, Section C, the Contractor is solely responsible for compliance with all federal, state, and local labor laws. This project involves minor construction and site work at a federal installation, the Contractor must comply with the Department of Labor (DOL) Construction Wage Rate Requirements incorporated into this solicitation/contract (AZ20260002 - Wage Determination). The Contractor must pay all laborers and mechanics no less than the minimum prevailing wages and fringe benefits specified in that Wage Determination, regardless of union affiliation.

5 Where can I find all the dimensions and info on the PEMB for this solicitation?

The Contractor is the Designer of Record and is responsible for determining the final external dimensions of the Pre- Engineered Metal Building (PEMB) to accommodate all SOW requirements. To assist in your design layout, the minimum required internal dimensions for the subsystems are defined in the SOW as follows:

- Blast Enclosure (Section 4.14.6.2): Must be a minimum of 20 ft Height x 20 ft Width x 40 ft Depth to accommodate the tallest and widest Aerospace Ground Equipment (AGE) configurations.

- Maintenance Operations Area (Section 5.1.1): Must be a minimum of 3,600 square feet on the West side of the PEMB to allow for a future duplicate blast booth system.

- Ancillary Spaces (Sections 4.5.2 & 4.6.1): The Clean Locker Room and Dirty Locker Room must each be a minimum of 200 square feet.

- Conceptual Site Layout: Refer to Appendix A for conceptual drawings and building orientation.

The current language makes the contractor responsible for unknown utility capacity and prohibits claims if existing conditions differ. This leaves the contractors no alternative but to include extra costs to mitigate those unknown risks. It would be in the best interest of the government to provide a little more detail by providing which specific utilities they will need in this facility and where the connection points will be. This will help prevent additional costs from incurring. Please confirm more detail can be provided to bidding contractors?

No. The requirement is a turn-key Design-Build acquisition where the Contractor acts as the Designer of Record. Per SOW Sections 2.1, 2.2, 2.5, and 2.5.1, the Contractor is solely responsible for performing all preliminary utility investigations, field verifications, load/flow testing, and capacity assessments required to deliver a fully serviced facility. Any government-furnished reference drawings or utility data provided during the solicitation are for informational purposes only, and the Government does not warrant their accuracy. The contract risk allocation and requirements remain unchanged.

The 30% design timeline is not realistic if the SIR is required at 30%. Design decisions depend on site data. Typically the SIR helps verify existing conditions, utility conflicts, environmental constraints, geotechnical issues, or permitting considerations, and those findings may affect the design. Completing 30% design before the SIR is finalized could result in assumptions and those mean additional costs that could later need to be revised in the design. Please confirm this can be amended to save the government additional costs?

Yes. The Government acknowledges the schedule conflict regarding the Site Investigation Report (SIR) and the 30% design submittal. The SOW has been revised to separate the SIR delivery from the 30% Concept Design, allowing adequate time for field investigations prior to the commencement of structural design. Updated SOW Sections 6.4.1, 6.5.1 and 6.9.7.1 (CDRL Summary).

Cybersecurity requirements are identified as "if applicable." Given that these facilities contain both control systems and MX operations, can the cybersecurity requirements be explicitly defined, including whether they are required and, if so, the applicable standards, scope, and level of compliance?

The Government’s baseline intent is for the facility’s control systems (PLC/HMI) to operate as localized, stand-alone (air-gapped) systems. At this time, integration with the installation's network is not a known or forecasted requirement;

therefore, a formal Authority to Operate (ATO) and full Risk Management Framework (RMF) package are not required to be priced into the baseline proposal.

The phrase "if applicable" in SOW 1.5.3 is retained to establish the compliance baseline (IL2 / UFC 4-010-06) should a future requirement arise, or if an offeror's specific proposed commercial solution dictates network connectivity. Offerors shall bid to the baseline requirement of a stand-alone system.

Per DFARS 252.204-7021, contractor must have and maintain CMMC Level 1 (Self) status.

Q&A - FA822726Q0003 AMARG Large Component Bead Blast Booth

The future expansion requirements appear to represent a significant portion of the project scope. If the Government intends to expand facilities to the west, can additional information be provided regarding the anticipated utility infrastructure requirements and expansion limits? The current requirement to "match the facility load" is difficult to quantify because the future facility loads and utility demands have not been clearly defined. Additional guidance is needed to accurately assess and price the required infrastructure. Please provide this information?

No. Additional utility data is not required to price this requirement. Per SOW Section 3.8.2, the expansion infrastructure must support a "duplicated facility load." As the Designer of Record, the Contractor is responsible for calculating the baseline utility demands (electrical, water, sewer) for their proposed initial facility design. The "duplicated load" is mathematically defined as exactly 100% of that calculated baseline load.

For example, if the Contractor's proposed blast booth design requires 400 Amps of electrical capacity, the main switchgear and capped conduit stub-outs must be designed and sized to support an additional 400 Amps (800 Amps total). No SOW changes are required.

Is the HMI/PLC system standalone, air-gapped, connected to a base network, or connected only for monitoring?

Per SOW Sections 1.5.3 and 4.2.2, the HMI/PLC control system shall be designed and installed as a standalone, air-gapped system. The system shall have no physical or wireless connections to any base network, external network, or off-site monitoring systems. All controls, diagnostics, and monitoring shall be localized entirely within the facility (such as the HMI screen in the Observation Room) and shall be independent of any network infrastructure.

Please confirm whether Authority to Operate is required. The SOW says “if applicable,” but also states the contractor is responsible for the full RMF package if required.

No, an Authority to Operate (ATO) is not required for the baseline proposal. As clarified in the response to Question 9, the Government's requirement is for a localized, standalone, air-gapped control system. Because the system will not integrate with any installation networks, a formal ATO and Risk Management Framework (RMF) package are not currently applicable or required to be priced.

The "if applicable" language in SOW Section 1.5.3 is retained solely as a baseline standard in the event a future requirement arises, or if an offeror's proprietary technical design necessitates network integration. Offerors shall bid the baseline requirement of a standalone system.

Are the west wall expansion provisions intended for a true future building expansion, or for converting the current MX Ops Area into a second blast booth?

The SOW requires provisions for both the conversion of the current West PEMB space and a potential future structural building expansion further to the West. Per SOW Section 5.1.1, the initial West PEMB (Maintenance Operations Area) must be a minimum of 3,600 square feet, which is sized specifically to allow for the future duplication of the east blast booth system entirely within the footprint of the initial building.

Simultaneously, per SOW Section 3.8, the West wall of this Maintenance Operations Area is designated as the 'Expansion Wall' and must be structurally and civilly engineered (no-load-bearing frames, capped utility stub-outs, and foundation dowels) to allow for a true future physical building expansion to the West with minimal operational disruption.

Should foundations, utilities, and structural systems be designed for the future second booth now, or only configured to allow future modification?

They should be configured to allow future modification and tie-in; the contractor is not required to construct the full foundation or final utility runs for the future structure under this contract. Per SOW Section 3.8, the requirement is to provide "specific, tangible provisions" at the Expansion Wall. This is explicitly defined as: Structural (3.8.1): A no-load-bearing Expansion Wall that allows for future panel removal. Utilities (3.8.2): Sizing the main utility infrastructure (switchgear, water mains) based on the calculated duplicated load (as clarified in the response to Question 10), and providing capped stub-outs with isolation valves/breakers at the Expansion Wall. Foundation (3.8.3): Providing engineered connection points (e.g., rebar dowels) or extending the footing just past the Expansion Wall to allow for a future monolithic pour. See SOW Section 3.8 for full details.

Who is the approving authority for Cold/Warm/Hot zoning: Bioenvironmental, Safety, Fire, CE, or all of the above? a. And are there pressure differences required between the zones?

All of the above. The specific roles and authority for zoning approval and pressure requirements are explicitly defined in the SOW as follows:

- Zoning Layout Approval (Section 4.3.1): The Contractor shall obtain written, signed approval of the final Cold, Warm, and Hot zone layouts from both the Bioenvironmental Engineering and Occupational Safety stakeholder offices as a condition for the Government's approval of the 60% Preliminary Design submittal.

- Pressure Differentials (Section 4.2.3): Yes, a cascading pressure differential is strictly required. The design must create an airflow path that moves from cleaner to dirtier spaces to prevent dust migration. The pressure hierarchy requires:

- Cold / Clean Spaces (Highest Pressure): Clean Locker Room and Observation Area (SOW 4.2.3.1) and West PEMB MX Ops Area (SOW 5.4.3).

- Warm / Transition Spaces (Intermediate Pressure): Dirty Locker Room and Transition Area (SOW 4.2.3.2).

- Hot / Dirty Spaces (Most Negative Pressure): Blast enclosure itself (SOW 4.2.3.3).

- Demising Wall / Air Barrier Testing (Section 3.2.4.3): The demising wall separating the East and West PEMB must achieve a maximum air leakage rate of 0.04 cfm/ft² at 75 Pa. The Contractor is responsible for performing and documenting this pressure test prior to final finishes.

15 Is the Government expecting a fully sprinklered PEMB?

Yes. The SOW requires a complete fire protection system for the entire Pre-Engineered Metal Building (PEMB).

Per SOW Section 3.11.1, the Contractor shall perform and submit a formal Fire Protection Hazard Analysis as part of the 30% design submittal to determine the specific system requirements (including sprinkler type and coverage density) in accordance with UFC 3-600-01 and applicable NFPA standards.

The final design must be reviewed and approved in writing by the Davis-Monthan AFB Fire Department during the design review process. Per SOW Section 3.11.2, the fire suppression system design must be stamped and approved by a licensed Professional Engineer as well as an NFPA Certified Fire Protection Specialist (CFPS).

What are Davis Monthan’s base requirements for either wet or dry sprinklered systems in their buildings? Requirements around blast booths for this scope can depend also on the government’s expectations for the use of the rest of the PEMB structure. Please provide more information?

The fire suppression system type is dictated by mandatory DoD and Air Force regulations, not arbitrary local preferences. As the Designer of Record, the Contractor must design the system to comply with UFC 3-600-01, the Air Force Corrosion Control Facility Guide, and the occupancy hazards defined in the SOW:

- East PEMB (Blast Area): Combustible dust hazard (Type V media) governed by NFPA 652 and 654 (SOW 4.14.3).

- West PEMB (Rest of Structure): Moderate-Hazard Factory Industrial, Group F-1 (SOW Appendix C), utilized for general maintenance support and configured for a future second booth.

The Davis-Monthan AFB Fire Department acts as the Authority Having Jurisdiction (AHJ) to verify compliance with these higher-level regulations.

Is the 2-hour demising wall (barrier) a Government-mandated requirement regardless of code analysis?

Yes. The continuous, full-height, 2-hour fire barrier separating the blast operations area (East PEMB) and the Maintenance Operations Area (West PEMB) is a non-negotiable, Government-mandated requirement.

While the Contractor is the Designer of Record, this specific structural separation is a mandatory project constraint and shall be implemented regardless of any independent building code analysis.

Is the 2-hour demising wall meant to be a separation between two different PEMB’s or one large PEMB with two different sections?

The 2-hour demising wall is meant to separate one large Pre-Engineered Metal Building (PEMB) into two distinct sections.

Per SOW Section 1.1, the media blast booth and the separated Maintenance Operations Area (MX Ops Area) shall be housed within a single, fully enclosed, weather-tight PEMB structure. The demising wall (SOW 3.2.4.1) serves as the internal environmental and fire barrier separating the "dirty" East section from the "clean" West section of that single building.

Are rated doors/openings allowed in the 2-hour demising wall for life safety, access, or operations?

No, operational or general access doors are not allowed through the demising wall. Per SOW Section 5.1.2, the West PEMB (clean space) must be completely sealed off from the East PEMB (dirty space) to prevent hazardous dust migration, and no walkthrough or operational access is permitted.

However, life safety egress doors are permitted only if strictly required by the Contractor's NFPA 101 code analysis. Any such egress opening must be a self-closing, UL-listed 1.5-hour fire-rated door assembly in accordance with UFC 3-600-01 and IBC table 508.4. All joints and seals must comply with the strict air barrier leakage limits specified in SOW Section 3.2.4.3.

The scope only states we are to provide doors based on life safety requirements. This can vary depending on things like the use of the building, occupancy ratings, and overall shape of the building as it takes into account the distances between doors, walls and sides of the building for egress paths. Please provide a desired quantity of how many interior and exterior doors (at a minimum) that the government wants bidding contractors to price?

The Government will not dictate an arbitrary quantity of interior or exterior doors. This is a Design-Build contract, and the quantity of doors must be engineered based on the Contractor's proposed layout. The Contractor is the Designer of Record.

The Contractor must establish the building footprint, occupancy classification, and required travel distances, and then propose the exact quantity and location of egress doors required to achieve compliance with NFPA 101 and UFC 3-600-01

(SOW 3.9.1).

Note: SOW Section 4 does mandate specific functional doors for the blast support spaces (e.g., equipment doors sized for maintenance access, and the single transition point between the clean/dirty locker rooms), and SOW Section 5.3.1 mandates the main 25’x20’ exterior door for the West PEMB. The remainder are governed by the Contractor’s code analysis.

Please identify the Government-preferred tie-in points for electrical, water, sanitary sewer, storm drainage, communications, and fire alarm?

The Government does not have a "preferred" tie-in point. Identifying and verifying the optimal utility tie-in locations is the sole responsibility of the Contractor.

Per SOW Section 2.2.3, the Contractor is required to perform a thorough utility investigation to identify, locate (including depth), and assess the available capacity of all existing utilities to determine the most viable tie-in points. While the Government may provide reference drawings upon award, per SOW Section 2.5, the Contractor is solely responsible for verifying these conditions in the field and designing the most cost-effective and compliant utility runs for their proposed facility layout.

22 Is the 3,600 SF MX Ops Area a clear inside dimension, net usable area, or gross building area?

The 3,600 square foot requirement is a clear inside dimension / net usable area. Per SOW Section 5.1.1, the West PEMB must provide a minimum of 3,600 square feet of clear, usable interior space to allow for the future duplication of the east blast booth system. Structural columns, interior walls, and mechanical equipment footprints shall not encroach upon this minimum net usable area.

23 Does the 3,600 SF measurement only apply to the Ops area or the entire PEMB?

The 3,600 square foot requirement applies only to the West PEMB Maintenance Operations Area (MX Ops Area). The total footprint of the entire Pre-Engineered Metal Building (PEMB) must be significantly larger. Per SOW Section 3.2.1, the total building envelope must be sized to accommodate the 3,600 square foot West MX Ops Area plus the entire East blast booth enclosure (SOW 4.14), all supporting locker rooms/offices (SOW 4.5 & 4.6), compressor rooms (SOW 4.10), and all associated mechanical/electrical spaces.

There is no information on the overall size of the PEMB that is to be provided. The size of this building drastically affects potential pricing that is submitted and offers irregularity in the pricing provided by each bidding contractor. Please provide an overall square footage for the PEMB facility?

The Government will not dictate a mandatory overall square footage for the Pre-Engineered Metal Building (PEMB).

Providing the optimal building footprint based on the SOW requirements is the sole responsibility of the Contractor. As this is a turn-key Design-Build acquisition, the Contractor is the Designer of Record. To ensure a uniform basis for bidding, all offerors must calculate their overall building size by summing the explicit minimum internal area requirements defined in the SOW:

- West PEMB (Section 5.1.1): 3,600 sq. ft. (minimum net usable area).

- East PEMB Blast Booth (Section 4.14.6.2): 800 sq. ft. footprint (20 ft Width x 40 ft Depth).

- Locker Rooms (Sections 4.5.2 & 4.6.1): 400 sq. ft. total (200 sq. ft. minimum for each room).

- Ancillary Mechanical/Support Spaces (Sections 4.4, 4.9, and 4.10): Sized by the Contractor's engineer to accommodate their proposed commercial blast equipment, compressed air tanks, breathing air system, and HVAC systems.

Offerors must determine the total building envelope required to house these consolidated subsystems, account for structural and wall thicknesses, and price their proposals accordingly.

Can the Government clarify whether administrative, break, restroom, shower, eyewash, janitorial, storage, IT/telecommunications, and office spaces are required as part of this project?

If so, please provide the required quantities, sizes, occupancy assumptions, and any specific programmatic requirements for each space type.

Only the specific functional spaces explicitly defined in the SOW are required. Administrative offices, break rooms, showers, janitorial, and IT rooms are not in scope. The required spaces and their designated occupancy assumptions for code calculations are:

- Observation Room (SOW 4.4.2): Sized for 2 personnel maximum.

- Clean Locker Room (SOW 4.5.2): Sized for 4 personnel maximum.

- Dirty Locker Room (SOW 4.6.1): Sized for 4 personnel maximum.

- Air Lock/Air Shower (SOW 4.7): Sized for 1 personnel transitioning.

- Restrooms/Plumbing (SOW 4.6.5): Only a two-basin hand/respirator washing sink in the Dirty Locker Room is required.

Restrooms are not required.

- Safety/Eyewash (SOW 10.6): Eyewash/safety showers must be provided in industrial zones to meet OSHA standards.

What occupancy classifications does the Government expect for the blast booth, MX Ops Area, equipment rooms, and support spaces? The fire barrier has already been determined and called out as determined by IBC. This could provide discrepancies during the design that could greatly impact costs.

The Government's required occupancy classifications are based on the International Building Code (IBC) and are explicitly referenced in the SOW. Offerors shall base their design on the following:

- Blast Booth Area & West MX Ops Area: Both are classified as Group F-1 (Moderate-Hazard Factory Industrial) per the SOW Appendix C reference to IBC 306.2.

- Support Spaces (Locker Rooms, etc.): Per the IBC, these are treated as Accessory Occupancies to the primary Group F-1 spaces.

The 2-hour fire barrier requirement in SOW 3.2.4.1 is a mandatory project-specific requirement. While both sides of the wall share the same F-1 occupancy classification, this non-negotiable barrier serves a dual purpose as both a fire-rated separation and a critical environmental air barrier to prevent dust migration, and it shall be installed as specified.

Does the Government require insulated metal panels, liner panels, FRP, CMU, gypsum board, or another preferred interior wall/finish system?

The Government does not mandate a specific interior wall or finish material (such as CMU, gypsum, or FRP). Consistent with the Commercial Off-The-Shelf (COTS) preference (SOW 1.4.1), the Contractor shall propose the most cost-effective, standard commercial systems that meet the following SOW performance requirements:

- Blast Enclosure Walls (Section 4.14.7.2): Must be sealed, air-tight, and abrasion-resistant to withstand plastic media blast environments.

- Locker and Support Rooms (Section 4.1.3): Must utilize durable, easy-to-clean, wipeable, industrial-level finishes.

- Insulation System (Section 3.7.2): A non-fibrous, puncture-resistant interior liner or insulation system is preferred to prevent fiber contamination and degradation.

Does the Government require insulated metal panels, liner panels, FRP, CMU, gypsum board, or another preferred exterior wall/finish system?

The Government does not mandate a specific brand or proprietary exterior wall panel system (such as insulated metal panels vs. standard metal siding).

Per SOW Sections 1.2.3 and 3.5, the Contractor shall propose a high-quality, permanent, weather-tight exterior wall system that complies with the Davis-Monthan AFB Design Compatibility Guidelines. The exterior must utilize galvanized and painted steel panels (SOW 3.5.3), finished to match the color and style of adjacent base structures (SOW 3.5.2).

Exterior colors and accent samples (including gutters and trim) must be submitted to and approved in writing by 355 Civil Engineering prior to manufacturing.

Please provide the Davis-Monthan AFB Design Compatibility Guidelines and confirm which particular architectural requirements are mandatory for this project.

The Davis-Monthan AFB (DMAFB) Building Design Guide / Design Compatibility Guidelines are public-releasable base standards. The guidelines have been attached to the solicitation.

Per SOW Section 1.3.1, the Contractor, as the Designer of Record, is solely responsible for identifying and complying with all local base guidelines. The mandatory architectural requirements for this project include, but are not limited to:

- Building Aesthetics (Section 3.1.4): The PEMB must have an exterior appearance that is visually consistent with surrounding facilities in the AMARG complex.

- Color and Finishes (Section 3.5.2): The main exterior color of the PEMB panels, roof, gutters, downspouts, doors, and trim must match adjacent structures. All exterior color samples must be submitted to and approved in writing by the 355th Civil Engineering Squadron (355 CES) prior to procurement and manufacturing.

30 Are landscaping, site fencing, signage, bollards, gates, exterior storage, or screening required?

The Contractor is responsible for delivering a fully finished and compliant site. The requirements for these specific elements are:

- Landscaping, Paving, and Grading: Required. Per SOW Section 2.2.5, the Contractor must develop and execute a comprehensive site plan detailing grading, drainage, utility routing, paving, and landscaping.

- Bollards, Gates, and Force Protection: Required. Per SOW Section 2.2.5, the site plan must incorporate physical force protection measures (such as bollards or vehicle barriers) to comply with UFC 4-010-01 (Antiterrorism).

- Signage: Required. Per SOW Section 4.1.1, the Contractor must install professional industrial signage displaying the official "Cold/Warm/Hot" zoning nomenclature, as well as all code-required egress signage.

- Site Fencing: Construction Fencing is Required (SOW 10.34.1) for the "free zone" and must be removed at project completion. Permanent site fencing is not required unless mandated by the Contractor's force protection/ATFP design.

- Exterior Storage & Screening: Standalone outdoor equipment is not permitted. Per SOW Section 4.10.1, all compressors, electrical switchgear, and utility equipment must be housed in enclosed, weatherproof, and secure mechanical rooms integrated with the PEMB.

Can the Government provide any existing site surveys, utility maps, geotechnical reports, environmental reports, or as-built drawings for Building 7213 and adjacent utilities?

The Government will make available any existing base utility reference drawings, site maps, or historical environmental reports for the area adjacent to Building 7213 to the successful awardee upon contract award. However, per SOW Sections 1.2.1, 2.2, and 2.5, all such Government-provided documents are for reference and informational purposes only. The Contractor, as the Designer of Record, remains solely responsible for the field verification of all actual site conditions.

The Contractor must perform and bear the full costs of all required preliminary site investigations, including geotechnical soil borings (SOW 2.3), topographic surveys, and utility depth and capacity testing (SOW 2.4). No claims for additional cost or time will be considered due to discrepancies between Government-provided reference drawings and actual field conditions.

Landscaping: Are landscaping improvements required as part of this project? If so, please provide the required scope and design criteria.

Yes, minimal landscaping is required to restore the site and ensure proper drainage. However, intensive ornamental landscaping is not in scope. Per SOW Sections 1.1 and 1.2.4, the project site is currently an unimproved desert lot. Per SOW Section 2.2.5, the Contractor shall develop a site plan that includes grading, paving, positive drainage, and landscaping that complies with the Davis-Monthan AFB Design Compatibility Guidelines. Due to the arid environment of Tucson, AZ, the design criteria for this industrial site require low-maintenance, desert-compatible xeriscaping (such as decomposed granite/gravel) to stabilize the soil, prevent erosion, and integrate visually with the surrounding AMARG complex.

Site Fencing: Is site fencing required? If so, please identify the required locations, extents, height, and security requirements.

See #30 response.

Signage: Is exterior or site signage required? If so, please provide the required types, quantities, and design standards.

See #30 response.

Bollards: Are bollards required? If so, please identify the locations, quantities, and any specific force-protection or operational requirements.

See #30 response.

Gates: Are vehicular or pedestrian gates required? If so, please provide the locations, quantities, and operational/security requirements.

Permanent Facility Phase: No permanent security gates or perimeter fencing are required under this baseline scope. Per SOW Section 1.1, the new facility will be located within an already secured, controlled area of AMARG. The Contractor is only required to implement localized physical force protection measures (such as bollards) per SOW Section 2.2.5.

Construction Phase: Required. Per SOW Sections 10.33.1 and 10.34.1, the Contractor must install and maintain temporary free-zone fencing and secure access gates for construction vehicles and personnel. The fencing and gate configuration must be submitted to and approved by the 355th Security Forces Squadron prior to mobilization, and completely removed upon project completion.

Exterior Storage: Is exterior storage required as part of the project scope? If so, please provide the intended use, size, and any enclosure or security requirements.

No, exterior storage is not permitted. All equipment, supplies, and waste must be securely housed within the facility.

Specifically: SOW Section 4.10.1, Section 4.9.5, section 4.17.6.

Screening: Is screening required for equipment, utilities, storage areas, or other site features? If so, please identify the locations and required screening criteria.

No, standalone exterior architectural screening is not required because exterior equipment is not permitted. As clarified in previous responses, the SOW explicitly prohibits exposed exterior mechanical equipment. Because all equipment must be housed internally or within integrated mechanical rooms designed to match the PEMB exterior (SOW 3.5), independent architectural screening fences or parapet walls are not required.

There is a great deal of information missing for what the government expectations are for the civil scope. Please provide the locations and sizes of the needed utilities that we will be connecting to and trenching to the new PEMB facility?

No. The Government will not provide pre-determined utility connection points, routing, or trenching lengths. This is a turn-key Design-Build contract, and defining the optimal civil engineering layout is the sole responsibility of the Contractor. Per SOW Section 2.1, the Contractor is fully responsible for all civil site work, trenching, grading, and utility system connections.

Per SOW Section 2.4, the Contractor must conduct a comprehensive engineering investigation and load/capacity testing of the existing base infrastructure to identify the closest, most viable connection points.

To ensure a uniform basis for bidding, offerors must base their civil estimation on their own initial site assessment and field observations.

SOW section 1.2.4 states we are to identify, design and construct all supporting utility infrastructure. Will the new PEMB facility require domestic water and if so where is it coming from and what size is the line we are tapping?

Yes. The facility requires a domestic water connection. Per SOW Section 4.6.5, the Contractor must install a culinary water source feeding a two-basin sink in the Dirty Locker Room, designed and plumbed in accordance with UFC 3-420-01.

Consistent with the turn-key Design-Build nature of this contract, the Contractor is solely responsible for determining the point of connection, routing, and pipe sizing. Per SOW Section 2.4.2, the Contractor must perform pressure and flow testing at their identified proposed tie-in point to verify adequacy for both the process/domestic water needs and the fire suppression systems.

Any Government-provided reference drawings showing existing base water mains are for informational purposes only. Field verification of utility sizes, depths, and connection points remains the absolute responsibility of the Contractor.

SOW section 1.2.4 states we are to identify, design and construct all supporting utility infrastructure. Will the new PEMB facility require sewer and if so where is it coming from, what is the connection point and what size is the line we are connecting to?

Yes. The facility requires a sanitary sewer connection. Per SOW Section 4.6.5, the Contractor must connect the Dirty Locker Room's two-basin hand/respirator washing sink to the sanitary sewer system, with all plumbing designed and installed in accordance with UFC 3-420-01.

The Contractor, as the Designer of Record, is solely responsible for determining the connection point, routing, and pipe sizing, per SOW Section 2.4.3.

Field verification of existing utility conditions remains the absolute responsibility of the Contractor.

SOW section 1.2.4 states we are to identify, design and construct all supporting utility infrastructure. Will the new PEMB facility require natural gas and if so where is it coming from and what size is the line we are tapping?

No. Natural gas is not a requirement for this facility.

SOW section 1.2.3 states to design, furnish and erect a...building. What square footage does the government want the facility to be so all bidding contractors are bidding the same?

The Government will not dictate a mandatory overall square footage for the Pre-Engineered Metal Building (PEMB). As clarified in the response to Question 25, this is a turn-key Design-Build acquisition, and the Contractor is the Designer of Record. To ensure a uniform basis for bidding, all offerors must calculate their overall building size by summing the explicit minimum internal area and dimensional requirements defined in the SOW.

44 What is the total square footage of the proposed/existing building? See SOW 45 What are the building's dimensions (length, width, and height)? See SOW and Question 25

46 How many stories will the building have, and what is the height of each story?

The Pre-Engineered Metal Building (PEMB) shall be a single-story, industrial structure. The height of the single story is dictated by the mandatory operational clearances defined in the SOW:

- Blast Enclosure (Section 4.14.6.2.1): Requires a minimum interior clear height of 20 feet to accommodate the tallest Aerospace Ground Equipment (AGE) (the B-2 Maintenance Stand at 17 feet, per SOW 4.14.6.3.1).

- West PEMB Main Access Door (Section 5.3.1): Requires a minimum door opening height of 25 feet.

As the Designer of Record, the Contractor must engineer the overall eave height and structural framing of the single-story PEMB to fully accommodate these interior clearances, the roll-up doors, and all suspended utility/HVAC systems.

Does the project require any variances or exceptions related to building size, height, or floor area?

No. The Government does not anticipate or require any code variances or exceptions for building size, height, or floor area.

Per SOW Sections 1.3.1, 3.1.1, and 3.6.2, the Contractor is solely responsible for ensuring the final design complies with all applicable building codes, including the International Building Code (IBC) and Unified Facilities Criteria (UFC).

The SOW's programmatic requirements (the 3,600 sq. ft. MX Ops Area, the blast booth footprint, and ancillary spaces) collectively result in a structure well within the allowable height and area limits for a Group F-1 occupancy under the IBC.

The Contractor shall ensure their final design layout complies with standard allowable area limitations without necessitating a variance.

48 What is the size of the project limits of construction?

The Government will not dictate a specific limit of construction line. The Contractor, as the Designer of Record, is responsible for engineering a site layout that fits within the designated project area while adhering to all mandatory DoD and local regulations. To ensure a compliant design, the Contractor's site plan must satisfy, at a minimum, the following two key constraints:

- Force Protection Standoff Distances: The final placement of the facility is governed by UFC 4-010-01, DoD Minimum Antiterrorism Standards for Buildings. The Contractor must design the site layout to meet all mandatory standoff distance requirements from existing inhabited buildings, primary roadways, and parking areas.

- Local Planning & Aesthetic Setbacks: The layout must also comply with any additional setback criteria established in the Davis-Monthan AFB Design Compatibility Guidelines.

The proposed construction footprint must be contained entirely within the unimproved lot North of Building 7213 (as shown in SOW Appendix A) while fully complying with these UFC and local base design guide requirements.

49 How much of the project lot will be covered by the building footprint?

The exact percentage of lot coverage is dependent on the Contractor's proposed design layout, but it must be sized to house all mandatory facility requirements. As the Designer of Record, the Contractor is responsible for optimizing the building footprint (combining the MX Ops Area, the blast enclosure, and all ancillary support/mechanical rooms) to fit within the designated lot North of Building 7213.

The final footprint must also account for all required exterior grading, civil site work, positive storm drainage (SOW 3.10), and the mandatory ATFP standoff distances specified in UFC 4-010-01 (as clarified in the response to Question 44).

As this building lot appears to be near a road, what are the setback requirements for the property, and does the proposed building comply with them?

The Contractor, as the Designer of Record, is solely responsible for ensuring the proposed building complies with all applicable roadway setbacks and force protection requirements. Per SOW Section 1.1 and Appendix A, the site is bordered by an active AMARG wrap-around roadway. The Contractor's site plan must comply with:

1. ATFP Standoffs (UFC 4-010-01): The design must meet the mandatory DoD minimum antiterrorism standoff distances from the adjacent roadway (and any parking or trash containers) to ensure full safety compliance.

2. Base Setbacks: The building must adhere to the planning and visual setbacks outlined in the Davis-Monthan AFB Design Compatibility Guidelines.

The designated lot North of Building 7213 is of sufficient size to accommodate the required facility footprint while comfortably meeting all UFC and local setback requirements.

Can you provide copies of the site plan, building elevations, and floor plans showing the building dimensions as discussed during the government’s design narrative with their architect and future user group?

No. The Government will not provide detailed floor plans, elevations, or architectural site plans for this solicitation. This is a turn-key Design-Build contract, not a "Build-to-Print" acquisition. The Government has provided the conceptual site location in SOW Appendix A, and the mandatory internal dimensional/area requirements in SOW Sections 4 and 5. The development of the actual site plan, floor plans, and building elevations is the explicit responsibility of the Contractor acting as the Designer of Record (SOW 1.2.1).

How does the proposed building size compare to neighboring buildings or developments in the area? Are we matching those buildings and if so, please provide as-builts for bidding clarity?

The proposed PEMB size and height are driven by its internal industrial functions (accommodating B-2 Maintenance Stands and heavy AGE equipment). The new facility does not need to match the physical dimensions of neighboring buildings. The requirement to "match" or "blend in" with surrounding structures (SOW Sections 3.1.4 and 3.5.1) is purely an aesthetic requirement. The Contractor must comply with the Davis-Monthan AFB Design Compatibility Guidelines to ensure the exterior color, siding profile, trim, and roof pitch are visually consistent with the existing AMARG complex (SOW 3.5.2).

SOW section 1.2.3 states the building is to be designed according to DMAFB Design Compatibility Guidelines. Would the government please provide this document?

As clarified in the response to Question 30, the Davis-Monthan AFB (DMAFB) Building Design Guide / Design Compatibility Guidelines are public-releasable standards. Bidding contractors are responsible for obtaining base design standards independently. However, to facilitate the bidding process and ensure aesthetic compliance, a digital copy of the DMAFB Building Design Guide is available upon request. Offerors may contact the Contracting Officer via email to receive a digital copy.

54 SOW section 1.2.4 states we are responsible for all site work Yes.

Can you provide a detailed site-work plan showing all proposed grading, excavation, and fill activities?

No.

56 What are the existing and proposed site elevations, and where can grading plans be reviewed?

The Government does not possess existing or proposed site grading plans for this solicitation. There are no pre-existing "proposed" elevations. Per SOW Sections 1.2.1 and 2.2, the Contractor is solely responsible for performing the topographic survey to establish existing site elevations. The Contractor must then engineer and stamp the proposed grading and site drainage plans (SOW 2.2.5 and 3.10) to ensure positive drainage away from the facility foundation.

These Contractor-developed grading plans will be formally reviewed and approved by the Government during the multi-stage design review process (30%, 60%, 90% submittals) per SOW Section 6.4.

How much cut and fill material is anticipated, and where will excess material be transported or sourced?

The amount of cut and fill material required is entirely dependent on the Contractor's proposed building footprint, foundation design, and site grading plan. As the Designer of Record, the Contractor must determine earthwork quantities based on their own geotechnical and topographic investigations (SOW 2.3) to achieve the mandatory positive site drainage

(SOW 3.10.1.2).

The Contractor is fully responsible for managing, hauling, and legally disposing of all excess spoils and construction debris.

per SOW Section 10.39.3

Are there any retaining walls proposed? If so, what are their locations, heights, and design specifications?

No. The Government has not proposed any retaining walls. The development of the final site layout, grading plan, and stormwater management system is the sole responsibility of the Contractor.

What stormwater management facilities are proposed, and can supporting calculations be provided?

The Government has not proposed any stormwater management facilities. As this is a turn-key Design-Build acquisition, the Contractor is the Designer of Record and is solely responsible for the complete engineering, calculation, and design of the stormwater management system.

60 How will drainage patterns change as a result of the site work?

The final drainage patterns are dependent on the Contractor's civil engineering site design. Per SOW Section 3.10.1.2, the Contractor must design the grading, swales, catch basins, or underground piping to ensure positive drainage away from the facility foundation and prevent ponding or erosion anywhere on or off the site. The final design must maintain or improve the historic runoff patterns of the local watershed without creating localized flooding.

61 Has a drainage study been completed, and is it available for public review? No. The Government has not performed a pre-existing drainage study for this unimproved site.

62 What erosion and sediment control measures will be implemented during construction?

The Contractor is solely responsible for developing, implementing, and maintaining all erosion and sediment control measures during the construction phase. See SOW Section 10.35.2, and Section 10.39.3.

Are there any impacts to adjacent properties from grading, drainage, or runoff that have been evaluated?

No pre-existing evaluation has been conducted by the Government.

Can you provide details regarding utility installation, including water, sewer, storm drain, electric, gas, and telecommunications infrastructure?

The Government will not provide specific utility routing, trenching paths, or installation details. All utilities must be installed in strict accordance with the governing standards listed in SOW Appendix C, including UFC 3-410-01 (HVAC), UFC 3-420-01 (Plumbing), UFC 3-520-01 (Electrical), and the National Electrical Code (NEC).

What improvements are proposed for roads, driveways, sidewalks, curbs, gutters, and pedestrian access?

The Government is not proposing any improvements to existing base roads. The project scope is contained entirely within the unimproved lot North of Building 7213. As part of their site plan (SOW 2.2.5), the Contractor is required to design and construct all new site features necessary to connect the facility to the existing infrastructure. This includes, but is not limited to:

- New Driveways/Access Aprons: From the existing wrap-around road to the facility's main equipment doors.

- New Pedestrian Sidewalks: From the existing road/parking areas to all personnel egress doors, compliant with ADA standards (SOW 3.9.2).

- New Curbs and Gutters: As required by the Contractor's civil engineering design to ensure positive site drainage (SOW 3.10).

66 Has a geotechnical or soils report been prepared, and can it be made available? No. A geotechnical or soils report has not been prepared for this specific, unimproved lot.

Are there any identified environmental constraints, such as wetlands, floodplains, or protected resources, that may affect site work?

The Government has not identified any wetlands, floodplains, or protected natural resources within the proposed project footprint.

What construction staging areas, equipment storage areas, and access routes are planned during site development?

The Contractor is responsible for proposing and managing their own construction staging, storage, and access plans, see SOW Section 10.45.1, Section 10.33.1, and Section 10.39.3.

69 What is the anticipated construction schedule for site-work activities?

The Government will not dictate a specific construction schedule for site-work activities. Generating the execution schedule is the sole responsibility of the Contractor. SOW Reference: Sections 6.4.1, 10.29.1, and 10.31.1

What measures will be taken to minimize dust, noise, and traffic impacts during site construction?

SOW Reference: Sections 10.11.1, 10.33.1, 10.39.2, 10.39.3, and 10.46.2

71 Are there any off-site improvements required as part of the project? If so, please provide details.

No. There are no off-site improvements required under this contract. The project scope is contained entirely within the designated boundaries of the unimproved lot directly North of Building 7213 at Davis-Monthan AFB (SOW 1.1). The Contractor is only responsible for the design and construction of the new facility and the localized site work, grading, drainage, paving, and utility connections extending from the verified base connection points to the building footprint (SOW

1.2.4 & 2.5). No off-site roadway, utility, or civil infrastructure upgrades outside of this localized scope are required.

Can you provide a landscape plan showing planting areas, irrigation systems, and open-space improvements associated with the site work?

The Government will not provide a landscaping or irrigation plan for this solicitation. As clarified in the response to Question 33, the design criteria for this industrial site require low-maintenance, water-efficient xeriscaping (such as decomposed granite) to prevent soil erosion. Permanent irrigation systems, vegitation, or open-space recreational improvements are not in scope.

73 What permits, approvals, or agency reviews are still outstanding for the proposed site work?

All necessary permits, approvals, and agency reviews are currently outstanding, as none have been initiated by the Government. Per SOW Section 2.1, the Contractor is responsible for all investigation, design, engineering, permitting, and construction. Mandatory Contractor-obtained permits are detailed in the SOW.

Are there any waivers, exceptions, or deviations being requested from standard site-development requirements?

No. The Government has not requested, nor does it anticipate requesting, any waivers, exceptions, or deviations from standard site-development requirements.

Can you provide detailed foundation plans, sections, and construction details for all proposed structures?

No. The Government will not provide structural foundation plans, sections, or construction details.

What type of foundation system is proposed (spread footings, mat foundation, slab-on-grade, deep foundations, etc.)?

The Government has not proposed a specific foundation system type. SOW Reference: Sections 2.1, 2.3, 3.6.1, and 4.14.4

77 What are the dimensions, depths, and elevations of all footings and foundation walls?

The Government does not possess pre-determined dimensions, depths, or elevations for footings or foundation walls. SOW Reference: Sections 1.2.1, 2.3, 3.6.1, and 3.8.3

Can you provide reinforcement details, including rebar sizes, spacing, lap lengths, and placement requirements?

No. The Government will not provide reinforcement details. This is a turn-key Design-Build acquisition.

79 What concrete strength (compressive strength) is specified for the foundation components?

The Government does not specify a pre-determined concrete compressive strength. The Contractor is the Designer of Record. The Structural Engineer of Record (SEOR) must calculate and specify the appropriate concrete strength to safely support the facility structure, the required collateral/suspended loads (SOW 3.6.3), and the 4100 Engine Trailer wheel loads inside the blast booth (SOW…