A001 Amendment SF30 Q-A 19EC7526R0005.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

PAGE OF PAGES

1 7

2. AMENDMENT/MODIFICATION NO.

A001

3. EFFECTIVE DATE

August 18, 2026

4. REQUISITION/PURCHASE REQ. NO.

PR16143297

5. PROJECT NO. (If applicable)

6. ISSUED BY CODE

7. ADMINISTERED BY (If other than Item 6)

CODE

American Embassy

Av Avigiras E12-170 and Av. Eloy Alfaro

Quito, Ecuador

8. NAME AND ADDRESS OF CONTRACTOR (NO., street,city,county,State,and ZIP Code)

Bidders Mailing List

9a. AMENDMENT OF SOLICITATION NO.

19EC-75-26-R-0005

9b. DATED (SEE ITEM 11)

July 27, 2026

10a. MODIFICATION OF CONTRACT/ORDER NO.

10b. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

[ x ] The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers [ ] is extended, [] is not extended

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods: (a) By completing Items 8 and 15, and returning _______ copies of the amendment;(b) By acknowledging receipt of this amendment on each copy of the offer submitted; or(c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers.

FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF

OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required) Please see attached

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN

THE CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b)

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authorit

E. IMPORTANT: Contractor [ X] is not, [ ] is required to sign this document and return __ copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

The Request for Proposal (RFP) is hereby amended to reflect the following change:

Incorporate the Questions and Asnswer document for the solicitation

Except as provided herein, all terms and conditions of the document referenced in Item 10A, as heretofore changed, remains unchanged and full in force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

16A. NAME OF CONTRACTING OFFICER

Matthew Madden

15B. NAME OF CONTRACTOR/OFFEROR

BY

(Signature of person authorized to sign)

15C.DATE

SIGNED

16B. UNITED STATES OF AMERICA

BY

(Signature of Contracting Officer)

16C.DATE SIGNED

NSN 7540-01-152-8070 Standard Form 30 (revised 10/83)

Previous edition unusable Prescribed by GSA FAR (48 CFR) 53.243 https://ilmsariba.state.sbu/Buyer/Main/aw?awh=r&awssk=__49&dard=1

Residential Electrical Distribution and backup power system upgrade for

U.S. Embassy Quito at Government Owned Residential compound Ziba

Solicitation No.: 19EC75-26-R-0006

Pre-proposal Conference Question & Answers – Q&As

August 3, 2026

The Embassy of the United States of America in Quito, Ecuador conducted a pre-proposal conference and site visit on August 3, 2026, at 11:00 a.m. on the above referenced solicitation. Two firms participated.

Project Services International Corporation, Inc.

Constecoin

The questions and answers below are responses to the inquiries received. Prospective bidders had the opportunity to submit questions to the Embassy regarding this solicitation. The questions were submitted via e-mail to: Quitoprocurement@state.gov

Questions:

1. Dear Sir/Madam, please indicate which is Annex 1 – Declaration of Words of Section J

This refers to the Statement of work referred into the section C.1 too, and it is included in the RFP starting on page 73 of the

RFP

2. Please confirm whether locally manufactured materials may be used for the execution of the project, provided that they comply with the established technical specifications, standards, certifications, and requirements.

Applicable local laws, regulations, and codes shall be complied with. UL-listed materials and equipment that are locally available, including transformers and other electrical components, shall be used whenever applicable. The Contractor shall prioritize the use of locally available UL-listed products that meet the project requirements.

3. The solicitation documents mention that a storage area will be available in the backyard of one of the residences within the compound. Please confirm the approximate dimensions of the available area, access conditions, and any restrictions that should be considered for the temporary storage of materials and equipment during project execution.

The storage area measures approximately 4x3 meters. Access to this storage area must be provided through the construction area and shall not be permitted through the main entrance of the house.

4. Please confirm whether there is any project, study, or technical documentation previously submitted to Empresa Eléctrica

Quito (EEQ) related to the expansion of the three-phase medium-voltage network and the new transformer. If so, we would appreciate it if this information could be provided for reference.

No, there is none.

5. For quantity estimation and preparation of the commercial proposal, please provide or confirm the approximate lengths of the new service connections and feeders required for both medium-voltage and low-voltage systems, including the proposed routing.

All distances shall be verified on site by the contractor. The current installation lengths are attached in the Scope of Work

(SOW).

6. Please provide an updated or detailed single-line diagram of the main electrical panel and the existing electrical panels.

It is attached Scope of Work (SOW).

7. If available, please provide an updated general layout identifying the existing and proposed locations of the transformer, generators, ATS units, electrical panels, poles, pull boxes/manholes, and other main equipment involved in the project.

There is none; the layout is part of the design and remains the responsibility of the contractor.

8. For the new electrical connections between the generators, ATS units, electrical panels, and associated equipment, please confirm the type of raceway/cable management system intended for exposed or above-ground routing, such as metallic conduit, cable tray/ladder, or another system. If this definition is to be developed by the contractor during the engineering stage, please confirm.

For underground raceways, PVC Schedule 40 shall be used; for aboveground raceways, IMC (Intermediate Metal Conduit) shall be used.

mailto:Quitoprocurement@state.gov

9. Please confirm the quantity and diameter of the existing underground conduits intended for installation of the second set of feeders, as well as the available space and their current physical condition.

There are two 4-inch PVC pipes available.

10. Please confirm the required operating sequence for the two generators, indicating whether both units are required to operate simultaneously in parallel with load sharing, or whether a different operating sequence is intended.

The operating philosophy requires both generators to operate simultaneously in parallel, with proper synchronization of voltage, frequency, phase sequence, and phase angle, while sharing the load appropriately. The system shall also provide the capability to inhibit either generator individually, allowing the remaining generator to continue operating independently and supply the connected load within its rated capacity.

11. Please confirm the required scope for the synchronization panel to be supplied by the contractor, including controllers, circuit breakers, protections, communications, and any other components required for parallel operation of the generators.

Refer to question number 10.

12. Please confirm the scope of the emergency generation system, specifically whether it is required to provide backup power to all residences within the compound, including the common/general services.

Yes, backup power shall be provided for the entire Conjunto.

13. If available, please provide the demand/load study used for sizing the new 200 kVA transformer and the emergency generation system.

There is none; it is part of this contract under the design phase.

14. The solicitation documents mention the replacement of existing electrical panels as required. Please identify which panels are included within this scope.

The Main Distribution Panel and ATS shall be replaced.

15. Please confirm whether the fuel required for testing, commissioning, and full-load testing of the generators will be provided by the Embassy or should be included in the contractor's scope.

This falls under the contractor's responsibility.

16. Please confirm whether the generators will be delivered with all required operating fluids and components, such as engine oil, coolant, batteries, and other necessary items, with only fuel to be supplied as part of the installation/commissioning activities.

Yes, confirmed.

17. Please confirm the required length and routing of the generator exhaust piping. Alternatively, please confirm whether, based on the generator model and proposed installation arrangement, any additional exhaust piping will be required.

No additional exhaust piping is required.

18. Please confirm that the documentation should be delivered to the requested personnel.

Please refer to Section L. L.3 Qualifications of Offererors. And L.4 Review of documents

19. Could you please specify projects that require experience as a company?

Experience with similar electrical projects, including the installation of transformers, medium voltage systems, and generators, is required. The contractor must also demonstrate experience managing and obtaining permits from the

Municipality for both electrical and civil work.

20. Could you please specify projects that require staff experience?

Refer to question #19.

21. Load Analysis, Demand, and Electrical Supply

• 21.1. The terms of reference specify a 200 kVA transformer. Please indicate whether this value was obtained through an individual load and demand analysis of each residence. If so, will this analysis be made available to bidders, considering it is a required submission to the Empresa Eléctrica Quito (EEQ)?

The Contractor shall perform a comprehensive load assessment as part of the engineering and design process to determine and confirm the appropriate transformer capacity required for the installation.

• 21.2. Regarding the transformation project before the EEQ, please confirm whether the local regulations of the EEQ and the

Ecuadorian Electrical Code will be strictly applied (including poles, hardware, cabling, and transformer), or if all these materials must strictly comply with UL Listed certifications.

Applicable local laws, regulations, and codes shall be complied with. UL-listed materials and equipment that are locally available, including transformers and other electrical components, shall be used whenever applicable. The

Contractor shall prioritize the use of locally available UL-listed products that meet the project requirements.

22.2. Circuits, Cabling, and Distribution Panels

• 22.1. The compound has two circuits (left and right) protected by molded-case circuit breakers. Please indicate:

o Whether the scope includes replacing these circuit breakers with higher-capacity ones and if there is any preference for brand or origin.

Yes. Proposed equipment shall be from reputable manufacturers with an established presence in the local market for at least ten (10) years and shall comply with all applicable standards and project requirements.

Locally available brands meeting these criteria include Schneider Electric and Siemens.

o Whether the feeders (cabling) running from the circuit breakers to the respective household electricity meters must be changed or reinforced.

Feeders can be reinforced.

o Whether the current underground ducts from the transfer switchboard to the distribution board are wide enough for the new cabling, or if civil works for new conduits are required.

No additional civil work is required.

o Whether the existing cable is copper or aluminum, and whether the new cabling can follow international standards or must be strictly UL Listed. Copper and aluminum conductors are currently installed within the project.

Copper conductors shall be considered for low-voltage applications, while aluminum conductors may be considered for medium-voltage applications, as applicable to the design requirements. Proposed cables shall be supplied by reputable manufacturers with an established presence in the local market for at least ten (10) years and shall comply with all applicable codes, standards, and project specifications. Locally manufactured cables produced in accordance with UL requirements are acceptable. Manufacturers such as Electrocables, Cablec, or approved equivalents meeting the same technical and quality requirements, may be considered.

o Whether the Embassy will provide all electrical cabling or if it is the contractor's obligation.

It is contractor’s responsibility.

• 22.2. Considering that the circuits will scale from an estimated design of 50 kVA to 100 kVA each: Is it necessary to replace all the cabling from the transfer switchboards to the new board, or can the existing one be reinforced? Is it possible to reuse the existing metal cabinet with its busbars, or must it be completely replaced under UL requirements?

Existing cabinets, busbars, circuit breakers, and associated electrical equipment shall be replaced as required by the project scope and design. For the cabling system, the installation of additional parallel cable runs is permitted, provided that the proposed configuration complies with all applicable codes, standards, ampacity requirements, and project specifications.

• 22.3. Please confirm if a general distribution panel will be required to distribute the load from the transformer to the transfer systems. If so, can it be manufactured in Ecuador using local standards and national/foreign non-UL busbars, or must everything be 100% UL Listed?

Yes. The main distribution panel shall be replaced based on the final load calculation and engineering assessment performed by the Contractor. The panel enclosure and associated components shall be fabricated in accordance with applicable UL standards; UL listing is not required unless otherwise specified by the project requirements. The equipment shall be supplied by reputable manufacturers with an established presence in the local market for at least ten (10) years and shall comply with all applicable codes, standards, and project specifications. Locally manufactured panels, cabinets, busbars, circuit breakers, and associated components produced in accordance with applicable UL requirements are acceptable, provided that their technical characteristics, ratings, and performance are suitable for the approved design.

23. Generators and Automatic Transfer Switches (ATS)

• 23.1. Given that two 150 kVA generators are proposed instead of a single one, please indicate if there is a possibility for them to operate independently (one generator and one ATS for each circuit) without requiring synchronization between the two.

No.

• 23.2. If synchronization is mandatory, please detail the required operating philosophy for the synchronization panel.

Likewise, indicate whether this panel must be 100% UL Listed or if it can be locally manufactured in Ecuador using elements available in the national market.

The operating philosophy requires both generators to operate simultaneously in parallel, with proper synchronization of voltage, frequency, phase sequence, and phase angle, while sharing the load appropriately. The system shall also provide the capability to inhibit either generator individually, allowing the remaining generator to continue operating independently and supply the connected load within its rated capacity.

• 23.3. Please confirm if the Embassy will provide the automatic transfer switches (ATS) for each generator.

Yes, the ATS will be provided by the Embassy.

24. Schedules, Permits, and Execution Deadlines

• 24.1. Taking into account that the design, presentation, and approval processes with the Empresa Eléctrica Quito (EEQ) take approximately 45 days (a timeline subject to external entities and Embassy reviews), will the Embassy be flexible regarding the deadlines established in the terms of reference?

Yes, as applicable, subject to the supporting documentation and evidence submitted by the Contractor, and within reasonable timelines or timeframes established in accordance with applicable law, regulatory requirements, or the requirements of the relevant authority or entity.

• 24.2. Similarly, please clarify timelines and schedule flexibility considering the registration and approval procedures for engineering drawings before the professional engineers' association and the local municipality, which are beyond the direct control of the contractor.

Refer to question 24.2

25. Civil, Architectural, and Site Scope

• 25.1. Engineering Deliverables: Please clarify the deliverables required at each engineering stage (30%, 60%, and 100%).

The Contractor shall provide complete and coordinated information through a three-stage review process, including the applicable design submissions, supporting calculations, drawings, specifications, and all relevant technical documentation. Each submission shall clearly identify the current status of all required municipal permits, approvals, licenses, and coordination with the applicable authorities, including pending actions, comments received, corrective actions, anticipated approval dates, and any potential impacts to the project schedule. All information shall be kept current throughout the review process and shall be supported by appropriate documentation and evidence.

• 25.2. OBO Standards: What specific OBO standards apply to civil design and which OBO standards apply to civil construction under this contract?

The Contractor shall comply with the applicable OBO standards, including the Standard Residential Generator

Installation Detail attached to the Statement of Work (SOW), and shall follow the construction methods and requirements established in the SOW under the Civil Construction section.

• 25.3. Permits and Responsibilities (Section H.19): Section H.19 states that the government is responsible for obtaining contract drawing approvals, paying fees, and securing initial building permits. Could you please clarify the exact scope of this government responsibility?

This is services contract where Contractor is requested to obtain all the necessary permits from city, local government and electric company to execute this project, the requests of permits will be sponsored by the Embassy, and all cost related to them will be covered indirectly by the Embassy, but contractor will need to include those costs in their price proposal.

• 25.4. Site Plans and Elevations: Can you please provide the site plan—particularly of the front area, the existing generator area, and the trash/waste storage area—including elevations?

Drawings will be shared upon request. Please email QuitoGSOContracts@state.gov to request the plans as they are large PDF files and SAM.gov has file size limitations.

• 25.5. Perimeters and Walls:

o Should the existing electric fence be replaced following the contour where the new trash storage room will be built, or should it remain as is?

It must remain where it is.

o Please confirm whether the rear wall of the new trash room and one side of the new generator area will use the existing perimeter wall.

Yes.

o Regarding the existing door in the generator area (fence), how should we proceed for the new configuration? Does the new area require the same configuration, and can this door be kept using the existing fence with the same characteristics?

The existing perimeter wall, including the access door, shall not be modified. Any required modifications shall be limited exclusively to the interior of the designated area.

• 25.6. Equipment and Exterior Finishes:

o Please confirm whether all electrical equipment (generators, ATS, transformer) must be strictly enclosed within the new masonry block wall. +

The generator, transformer, and all associated electrical equipment shall be installed within the new designated electrical area to be constructed under this Statement of Work (SOW).

o Please confirm whether a concrete slab is required for the areas surrounding the aforementioned electrical equipment located within the block wall.

Yes, a concrete floor/base slab is required.

o What are the required technical specifications for the fuel spill containment system (dike)?

Fuel spill containment shall be provided for the generator fuel system in accordance with NFPA 30, NFPA 37, applicable local codes, and the requirements of the Authority Having Jurisdiction (AHJ). The Contractor shall determine and document the required containment capacity as part of the engineering design and shall submit the calculations, details, materials, and applicable code references for Government review. Contractor must verify the applicable local municipal/fire/environmental requirements.

o Please confirm whether the finish for all new walls will be plaster, skim coat, and paint, or if a different coating or finish is required.

The same finish of the existing walls.

o The description does not establish what type of roofing the new trash room will have; please clarify whether this is left to the contractor's discretion.

The roof of the garbage collection area shall be constructed of concrete.

mailto:QuitoGSOContracts@state.gov

• 25.7. Parking Lots: Please confirm that no intervention or replacement of the parking lots inside the residential compound is required as part of the scope of work.

Inside work for the parking spaces is not required.

• 25.8. Reports and Closeout Dossiers:

o What type of reports, and at what frequency, are required during the construction phase?

Weekly reports shall be provided to document progress throughout the design and construction phases, along with any other relevant information requiring timely communication.

o What exact dossiers are required at the end of the project (QA/QC, HSE, progress reports, as-built drawings, etc.)?

As-built drawings, commissioning reports, and all documentation reflecting the work performed and any modifications thereto shall be provided.