Amendment - 0010 P1241.pdf

SOLICITATION N6247325R3443

AMENDMENT 0010

AMENDMENT 0010, SOLICITATION NO. N6247325R3443, DESIGN-BUILD MILCON P1241

LOW ALTITUDE RADIO COMMUNICATION SYSTEM (LARCS) COMMUNICATION

TOWERS FOR MARINE AIR GROUND TASK FORCE TRAINING COMMAND (MAGTFTC)

TWENTYNINE PALMS, CA

Date: August 28, 2025

The purpose of this Amendment is to revise the Phase Two RFP Parts 1-6 as follows:

1. Modify the Phase Two Proposal due date as follows in response to RFI #84:

FROM:

2:00 PM PT on September 11, 2025

TO:

2:00 PM PT on September 25, 2025

2. Modify Amendment 0009 P1241, PHASE TWO: FACTOR 5: TECHNICAL SOLUTION, subsection “a. Proposal Submission Requirement,” last sentence in response to RFI #8 as follows:

FROM:

"Any figures, tables, drawings, and/or pictures may be part of the six (6) pages."

TO:

"Any figures, tables, drawings, and/or pictures shall be excluded from the six (6) pages and shall be submitted as an appendix limited to 20 pages including the proposed construction schedule."

3. Modify ATT 4_OFFER SCHEDULE, Option 0002 (OP Round) in response to RFI #1 as follows:

ADD:

"Helicopter Transportation" as pricing input. See attachment OFFER SCHEDULE for revised spreadsheet file.

4. Modify RFP PART 3, CHAPTER 1, PROJECT DESCRIPTION, sections regarding P1241

MAJOR WORK SCOPE MATRIX and MAJOR WORK SCOPE BY BASE BID ITEMS AND OPTION ITEMS in response to RFI #7 as follows:

Where occurs in these sections, correct spelling as noted, FROM:

OP American Mine

OP America Mine

5. Modify RFP PART 3, CHAPTER 1, PROJECT DESCRIPTION, sections regarding MAJOR

WORK SCOPE BY BASE BID ITEMS AND OPTION ITEMS, BASE ITEM 0001: DESIGN OF

ALL SITES in response to RFI #7 as follows:

BASE ITEM 0001: DESIGN OF ALL SITES

Firm-Fixed-Price (FFP) (lump sum) includes all bonds, design, materials, labor, and equipment for Design of All Sites.

Provide project full plan design drawings and specifications for all base items and options: includes design of four (4) new 140-foot high communication towers and foundations (OP Mesa, OP American Mine, OP Galway)

BASE ITEM 0001: DESIGN OF ALL SITES

Firm-Fixed-Price (FFP) (lump sum) includes all bonds, design, materials, labor, and equipment for Design of All Sites.

Provide project full plan design drawings and specifications for all base items and options: includes design of four (4) new 140-foot high communication towers and foundations (OP Mesa, OP America Mine, OP Galway, and OP Mine)

6. Modify RFP PART 3, CHAPTER 1, PROJECT DESCRIPTION, section CONSTRUCTION CONSIDERATION, subsection regarding Range Contractor Communciation in response to RFI #6 as follows:

Range Contractor Communication. The range area has poor cellular communication reception and transmission not conducive for Contractor reliable means of communication. The Base shall provide Government LMR based radios programmed for Contractor usage during the project duration. Radios shall be leased to qualified Contractor personnel during the project after the completion of MAGTFTC training on proper radio usage and operation.

TO:

Range Contractor Communication. The range area has poor cellular communication reception and transmission not conducive for Contractor reliable means of communication. The Base shall provide Government LMR based radios programmed for Contractor usage during the project duration. Radios shall be leased to qualified Contractor personnel during the project after the completion of MAGTFTC training on proper radio usage and operation.

Public Works Division’s Land Mobile Radios are Marine Corps assets, and PWD is responsible for these radios. Hence, PWD will not lease out any radios to the Contractor (KTR). When construction starts, KTR will check out radios and charging dock from the Responsible Officer (RO) in PWD. KTR is allowed to check out up to ten (10) radios for the maximum duration of 30 days temporary loan. With the presence of the RO and KTR, all serial numbers MUST BE recorded and documented in the logbook.

Every 30 days KTR and RO or assigned Government representative will meet to inventory ALL Government Furnished Equipment. After checking the assets, if no missing items or no discrepancies are found, the RO will let KTR check out the assets for the next 30 days. Inspection of all assets are required, and no partial inspection is allowed. All checked out assets must be present for inspection, and failure to provide any assets to the RO will jeopardize the 30 days temporary loan of all assets until the asset(s) was/were found or when asset(s) was/were missing, pending purchase for replacement must be occurred.

KTR must complete MAGTFTC training for proper radio usage and operation prior to checking out the radios.

If there is any program issue with the radios, please notify the government representative or the RO immediately.

If the checked-out radio is broken, i.e. physical damage, and could no longer be functional, the

KTR is responsible to replace the asset at the cost of $5608.02 for each unit.

If the checked-out radio is missing and nowhere to be found, the KTR is responsible to replace the asset at the cost of $5608.02 for each unit.

If the charging dock is broken, i.e. physical damage, and could no longer be functional or goes missing, the KTR is responsible to replace the asset at the cost of $1155.9 for each unit.

7. Modify RFP PART 3, CHAPTER 1, PROJECT DESCRIPTION, section CONSTRUCTION

CONSIDERATION, subsection regarding Range Contractor Communciation in response to RFI #17 as follows:

ADD: (as paragraph 2) Authorization to access the installation from access points other than the Main Gate requires prior coordination with Range Control to ensure there are no hazardous activities that would prevent the Contractor from transiting to the scheduled site.

8. Modify RFP PART 3, CHAPTER 3, SITE ANALYSIS, section 3.3 Existing Site Environmental Concerns in response to RFI #18, question 1 as follows:

ADD: (after section on Golden Eagle Nest Locations)

Natural Resource / Migratory Bird Monitoring

The Contractor is responsible for coordinating with base Natural Resource staff PRIOR to start of any Contractor activity:

1. Environmental Brief and nest check training.

(CERS, Enclosure 6 page 7, Environmental Awareness, 1)

2. Nesting bird survey requirement according to the below three site sub-categories.

(CERS, Enclosure 6 page 10, Natural Resources, 2.b.2)

A. Bird surveys are not required at a checkpoint, staging area, or landing site nonadjacent to communication towers if:

1) The site is a previously disturbed site;

2) There will be no vegetation clearing; and,

3) There will be no ground disturbing work.

B. Bird surveys are required at a checkpoint, staging area, or landing site nonadjacent to communication towers if they do not meet the above (3) criteria. Contractor coordinates with EA and EA conducts survey.

C. Bird surveys are required at Communication Towers and adjacent sites. Contractor must be trained by EA and contractor conducts the survey.

The Contractor is also responsible for following other requirements/procedures in the CERS, in situations such as (but not limited to) inadvertent discovery, desert tortoise discovery, etc.

9. Modify RFP PART 3, CHAPTER 1, PROJECT DESCRIPTION, section regarding Helicopter

Services in response to RFI #18, question 2 of 2 as follows:

ADD: (after Table 1. Aircraft Specifications/Requirements)

Phase 1: Pre-Operation Approval and Paperwork Before any flight operations can begin, the prime contractor must submit specific information for approval. This data is the primary "paperwork" requirement.

1. Information Submission: The contractor must provide the following details to the Contracting

Officer's Representative (COR) and the G-3 Air Officer:

o Company Information: Full name and contact details of the helicopter subcontractor.

o Aircraft Details: Make, model, and tail number of each aircraft intended for use.

o Aircrew Details: Full name and pilot certificate number for each pilot who will operate the aircraft.

o Proof of Insurance: A certificate of liability insurance meeting the contract's requirements.

o Proposed Schedule: A general outline of the dates and times of planned flight operations.

2. Review: The G-3 Air Officer reviews this information to ensure compliance with base regulations and to begin coordinating airspace.

Phase 2: Mandatory Aircrew Briefing

Once the initial information is recieved, a mandatory briefing must occur.

1. Initial Aircrew In-Brief: All contractor pilots must attend a one-time, in-person briefing conducted by the G-3 Air Officer.

2. Briefing Content: This brief covers critical local flight procedures, including:

o Installation airspace boundaries and restricted areas.

o Radio frequencies and proper communication protocols.

o Standard flight routes and corridors.

o Emergency procedures.

o Rules of operation on the installation.

No flight operations are permitted until this mandatory brief is completed.

Phase 3: Daily Flight Operations After the initial approvals and briefing are complete, daily flights are managed through direct communication with Range Control.

1. Contacting Range Control: All flight movements are controlled by Bearmat (Range Control).

2. Requesting Transit: Before takeoff or upon entering the installation's airspace, the pilot must establish radio contact with Bearmat. The pilot will state their callsign, current location, and their requested destination or operational area (e.g., "transit from Point A to Point B").

3. Receiving Instructions: Bearmat will provide specific instructions, including the approved flight path, altitude, and any potential traffic or hazards. Pilots must adhere strictly to these instructions.

4. Maintaining Communication: Pilots are required to maintain radio contact with Bearmat throughout their operations on the installation.

5. Important Considerations Experienced Subcontractors: While helicopter companies that have previously operated here are familiar with these procedures, the prime contractor is still responsible for ensuring all current requirements are met. This familiarity should be reflected in their proposals and operational plans.

Guidance Source: The definitive guidance is typically found in local installation orders regarding airspace management. The contractor can request the relevant documentation from the G-3 Air Officer via their COR.

10. Modify RFP PART 3, CHAPTER 1, PROJECT DESCRIPTION, section regarding Helicopter

Services in response to RFI #30 as follows:

ADD:

Joint Use of NAVSEA Helicopter Services During Inspection and Design Phase. The Contractor will be able to use the helicopter provided by the government during the design phase and inspection phase of the project (to complete Base Item 0001) to fly personnel and light equipment to the sites at no cost to the selected Contractor. NAVSEA has offered joint use of their helicopter transport services while they are working on their microwave upgrade phase as the MILCON Contractor concurrently conducts their existing conditions investigation between the dates noted in the current IMS/IMP.

1. The MILCON Contractor shall understand that their transport and investigative trips to the P1241 will be secondary in priority to the NAVSEA microwave upgrade.

2. MILCON Contractor will have access to transport with the understanding that the primary use of the helicopter will be NAVSEA microwave upgrade phases 3 and 4.

3. The MILCON Contractor shall plan to have maximum flexibility during the stated window of opportunity, and plan for the entire period.

4. The MILCON contract should be able to visit all P1241 sites during this time provided that the

MILCON Contractor is flexible and plans in advance accordingly.

5. NAVSEA has a number of hours available each day for the microwave upgrade. The MILCON contractor will be required to work within the time limits of the combined NAVSEA and MILCON efforts without exceeding the daily contracted hours.

6. The helicopter will not be available on Sunday May 3rd 2026. This is a down day for the NAVSEA team and the helicopter crew.

11. Modify RFP PART 3, RFP PART 3, CHAPTER 6 ESR F2010 1.1 GENERAL DEMOLITION, Exterior Demolition in response to RFI #24 as follows:

Exterior Demolition The demolition, removal and disposal of all components exterior of the existing equipment shelters, photovoltaic panels structures and waveguide (ice bridge) structures and their foundations shall be addressed by NAVFAC MILCON Design-Build Contract.

Exterior Demolition The demolition, removal and disposal of all components exterior of the existing equipment shelters, photovoltaic panels structures and waveguide (ice bridge) structures and their foundations shall be addressed by NAVFAC MILCON Design-Build Contract. The Contractor shall remove the full depth of existing foundations if they will be in conflict with the new footings or foundations.

12. Modify RFP PART 3, CHAPTER 6, ESR G103003 Rock Excavation in response to RFI #35 as follows:

Blasting shall not be permitted.

Blasting shall not be permitted. Contractor shall roll large rocks cautiously and safely out of work area without rolling down the mountain side.

13. Modify PART 3, CHAPTER 6, ESR G103004 Fill and Borrow in response to RFIs #51 and #61 as

For cut and backfill spoils in any remote site the material (spoils) to be left on the site where it shall not affect the project site. Contractor shall perform all necessary cut and fill operations to achieve the required grades and elevations. All cut and fill material generated during these operations shall be retained and redistributed on the project site as per of grading plan. Upon completion of the cut and fill operations, the contractor shall ensure that the site is left in a stable, graded condition.

For cut and backfill spoils in any remote site the material (spoils) to be left on the site where it shall not affect the project site. Contractor shall perform all necessary cut and fill operations to achieve the required grades and elevations. All cut and fill material generated during these operations shall be retained and redistributed on the project site as per of grading plan. Upon completion of the cut and fill operations, the contractor shall ensure that the site is left in a stable, graded condition. Excess spoils from the excavation can be spread evenly matching existing counters and grades. No stockpiling shall be allowed. Crushed aggregate no larger than 3/4" is an acceptable alternative backfill.

14. Modify RFP PART 3, CHAPTER 6, ESR G4090 OTHER SITE ELECTRICAL UTILITIES in response to RFI #28 as follows:

DELETE: (from the first paragraph) Provide other site electrical utility systems consisting of Lightning Protection Systems. Lightning Protection systems must protect LARCS equipment including antennas, battery shelters, communication shelters, and solar arrays which are not completely protected by the tower and the methods described in

NFPA 780.

REPLACE WITH:

Provide Lightning Protection System for ALL sites in accordance with NFPA 780, UFC 3-575-01, and tower manufacturer recommendations. This includes towers, battery/communication shelters, antennas, solar PV arrays, and all adjacent equipment above and below grade. Lightning Protection Systems must protect Low Altitude Radio Communication System (LARCS) equipment which includes towers, battery/communication shelters, antennas, solar PV arrays, and all adjacent equipment above and below grade.

15. Modify RFP PART 3, CHAPTER 6, ESR ESR G4020 LIGHTING in response to RFI #34 as

DELETE:

Provide obstruction lighting on towers and controls for the obstruction lighting in compliance with FAA Advisory Circular AC 70/7460-1M”

REPLACE WITH:

Provide obstruction lighting and controls on towers in compliance with FAA Advisory Circular AC 70/7460-1M. Provide a standalone DC power supply system to include but not limited to PV panel, battery and lamps (3x minimum repair items) for a complete and usable system. Do not connect to GFE ISO container shelters for power to avoid electromagnetic interference (EMI) and noise detrimental to the GFE electronics equipment systems and sub-systems. Lighting System Controller and Lighting System shall be provided as part of this project. Mount lighting system controller at the base of the towers.

16. Modify RFP PART 3, CHAPTER 6, ESR G4010 ELECTRICAL DISTRIBUTION in response to RFI #36 as follows:

Provide an underground duct bank for between the battery shelter and the communication shelter. Duct bank must be a minimum of four (4) 4” conduits.

REPLACE WITH:

Provide an underground duct bank for PV System between the battery shelter and the communication shelter. Refer to Electrical drawings from NAVSEA Collateral Equipment Design in Part 6 of the RFP, Contractor shall coordinate with NAVSEA for the latest design requirements.

17. Modify RFP PART 3, CHAPTER 6, ESR G4020 LIGHTING in response to RFIs #34 and #37 as

Provide obstruction lighting on towers and controls for the obstruction lighting in compliance with FAA Advisory Circular AC 70/7460-1M.

REPLACE WITH:

Provide obstruction lighting and controls on towers in compliance with FAA Advisory Circular AC 70/7460-1M. Provide a standalone DC power supply system to include but not limited to PV panel, battery and lamps (3x minimum repair items) for a complete and usable system. Do not connect to GFE ISO container shelters for power to avoid electromagnetic interference (EMI) and noise detrimental to the GFE electronics equipment systems and sub-systems. Lighting System Controller and Lighting System shall be provided as part of this project. Mount lighting system controller at the base of the towers.

18. Modify RFP PART 3, CHAPTER 6, ESR G4090 OTHER SITE ELECTRICAL UTILITIES in response to RFI #38 as follows:

ADD: (as paragraph 4 and 5) Additional towers or poles typical of a catenary lightning protection system can be utilized to protect communications shelter and solar systems if outside tower cone of protection.

NOTE: SHELTERS & EQUIPMENT THAT FALL OUTSIDE THE CONE OF PROTECTION AT

ALL NINE (9) REMOTE SITES PROVIDED BY THE TOWER LPS WILL ALSO NEED A

SEPARATE LPS DESIGN. (REFER TO SHEET G-009 FOR SUMMARY OF TOWER

COMPONENTS AND SCOPE TABLE).

19. Modify RFP PART 3, CHAPTER 6, ESR G401008 GROUNDING SYSTEMS in response to RFIs #39 and #42 as follows:

ADD: (as paragraph 2) A new grounding system shall be designed and installed for all existing and new towers. Existing grounding systems components shall not be re-used and integrated into the new grounding system design. A new grounding system design shall be bonded to the existing grounding system.

20. Modify RFP PART 3, CHAPTER 6, ESR G4090 OTHER SITE ELECTRICAL UTILITIES in response to RFI #41 as follows:

ADD: (as paragraph 6) Existing tower structures shall not be used as a down conductor.

NOTES:

1. The offeror must acknowledge receipt of all amendments on the offer schedule.

2. All other paragraphs, provisions, and conditions to this proposed contract remain unchanged.

ATTACHMENTS:

(1) Phase Two_Offer Schedule_P1241_REV 1