LiDAR Survey Solicitation

Amendment / Modification

This amendment provides clarifications and responses to vendor questions regarding the solicitation.

• Radar Reference Elevation and Obstruction Threshold Criteria: The baseline reference elevation for Tier classifications is the top plate of the existing 15-meter lattice tower. For modeling and Tier classification deliverables, add +50 feet relative to the verified existing top plate elevation.
• Parcel/Ownership Dataset: The Government will not provide an authoritative dataset. Offerors must use publicly available municipal or county GIS parcel data (e.g., Cumberland County or Town of Gray tax assessor databases) for Zone A and Zone B classification. Standard disclaimers regarding public data accuracy are acceptable.
• Optional CLIN 0002 (Tier 1 & 2 Obstructions): Ground-truthing and timber valuation are limited to Zone A (State/Lessor-controlled land). Zone B (Private Land) is excluded. Full coverage of all individual Tier 1 and Tier 2 obstructing trees within Zone A is expected. Cost estimates should reflect assessment of every tree in Zone A.
• Site-Specific Flight Restrictions: Coordination with WFO Gray and NWS Radar Operations Center (ROC) is strictly required prior to UAS LiDAR acquisition due to the WSR-88D's high-powered RF emitter. Flight windows will be scheduled with the NWS for radar standby or sector blanking. Standard FAA Part 107 regulations apply.

No changes to proposal deadlines or submission requirements were noted in this amendment, but bidders should incorporate these clarifications into their technical approach and cost estimates.

Solicitation / RFP / RFQ

This document is a solicitation (RFQ) for a LiDAR survey to conduct a non-destructive site survey within a 1200-foot radius of the radar tower for Gray, ME. It also includes an option for a Licensed Professional Forester (State of Maine) with a Natural Resource Management background to conduct a non-destructive, boots-on-the-ground assessment of obstruction zones.

• CLIN 0001: LiDAR survey of a specified area.

• CLIN 0002 (Option): Non-destructive, boots-on-the-ground assessment of obstruction zones by a Licensed Professional Forester.

• Acceptance of CLIN 0001 is a mandatory prerequisite for exercising the option (CLIN 0002).

• Base Period of Performance: May 22, 2026 through August 20, 2026.

• Option Period (CLIN 0002): Same as base period (May 22, 2026 - August 20, 2026).

• NAICS Code: 541370 (Survey and Mapping (except Geophysical))

• Size Standard: $19

• Offer Due Date: April 17, 2026, 12:00 PM Eastern Daylight Time.

• The solicitation incorporates FAR 52.212-1, 52.212-4 by reference, and FAR 52.212-3 and 52.212-5 are attached.

• This acquisition is set aside 100.00% for Small Business.

• The document includes numerous FAR and agency-specific clauses covering topics such as:

  • Terms and Conditions for Commercial Products and Services
  • Security Prohibitions and Exclusions (including covered foreign countries and entities)
  • Federal Acquisition Supply Chain Security Act (FASCSA) requirements
  • Insurance coverage
  • Sexual Assault and Sexual Harassment Prevention and Response Policy
  • Electronic Submission of Payment Requests
  • Government-Contractor Relations
  • Small Business Program Rerepresentation

• Section J lists the following attachments:

  • Procurement Memorandum 2023-12
  • PWS - KGYX Blockage Mitigation - Tree Survey (3) (1)
  • NEPA CE Screening Checklist
  • Instructions to Offerors

Other / Unclassified

This document is a Procurement Memorandum (2023-12) dated February 23, 2026, concerning the Department of Commerce's (DOC) Supply Chain Risk Management (SCRM) Program. It outlines the government's approach to identifying, assessing, and monitoring supply chain risks associated with critical vendors.

Vendors should be aware that the government may utilize all available information, including intelligence, to analyze supply chain risks. The government reserves the right to perform audits of supply chain risk processes, which may include onsite assessments. Identified risks may necessitate mutually agreeable corrective actions. Failure to resolve identified risks could lead to contract termination. This information is relevant for bidders to understand potential contractual obligations and government oversight related to supply chain security.

Performance Work Statement (PWS)

The National Weather Service (NWS) requires a high-precision "Tree Inventory" to determine the most cost-effective long-term solution for mitigating radar beam blockage caused by surrounding vegetation at the KGYX Weather Radar Facility in Gray, Maine. The goal is to generate a "Decision Matrix Dataset" to help the Government decide between removing vegetation and/or raising the radar tower.

• Conduct a non-destructive aerial site survey using a small Unmanned Aircraft System (sUAS) within a 1200-foot radius of the radar tower.

• Acquire high-density aerial LiDAR data and imagery to generate a geospatial model of vegetation canopy height.

• Map vegetation against current and potential future tower heights.

• Attribute inventoried trees to "Stakeholder Zones" (Government Controlled vs. Private/Other) based on land ownership.

• Classify vegetation into three "Threat Tiers" (Red, Orange, Yellow) based on its elevation relative to Mean Sea Level (MSL) and the radar tower's critical plane.

• Deliverables include a classified point cloud, vegetation obstruction map, Digital Surface Model (DSM), Canopy Height Model (CHM), survey report, and a vegetation obstruction table.

• LiDAR data must have a minimum point density of 8 points per square meter.

• Vertical accuracy must have a Root Mean Square Error (RMSE) of ≤10 cm.

• All data must be referenced to the NAVD 88 vertical datum.

• Vegetation with a calculated Tip Elevation (Ztip​) ≥ 448.0 Feet MSL must be inventoried.

• Specific elevation thresholds define Threat Tiers: Tier 1 (≥ 508.0 ft MSL), Tier 2 (458.2 ft to < 508.0 ft MSL), Tier 3 (448.0 ft to < 458.2 ft MSL).

• Data acquisition and final deliverables within 90 Days of contract award.

• Place of Performance: KGYX WSR-88D Weather Radar Facility, Gray, ME, and surrounding 1200-foot radius. Post-processing may be done off-site.

• Contractor must hold an active FAA Part 107 Remote Pilot Certificate.

• Flights must comply with FAA regulations.

• Coordination with NWS Electronics Technician is required for RF hazard mitigation during flight operations.

• Contractor is responsible for all travel and logistical costs.

• If exercised, requires a Licensed Professional Forester to conduct a boots-on-the-ground assessment of Tier 1 and Tier 2 obstruction zones.

• Includes targeted timber valuation, species identification, DBH measurement, health assessment, and NEPA Categorical Exclusion screening (Endangered Species, Wetlands).

• Deliverables include a Harvest Feasibility & NEPA Report, updated Vegetation Obstruction Table, Forester GIS Package, and a Comprehensive Mitigation GIS Package & Final Report.

• Optional Objective Period of Performance: 30 Days if exercised.

Solicitation / RFP / RFQ

This document provides instructions for submitting quotes for commercial products and services. It tailors the standard RFO 52.212-1 provision, referring to "vendors" instead of "offerors" and "quotes" instead of "offers" or "bids." The government intends to award a Firm-Fixed Price contract.

Vendors must submit quotes in three volumes:

• Volume I: Technical Proposal: Detail how all deliverables in Sections 5 and 10.3 of the PWS will be accomplished. Include any relevant certifications, specifically an FAA Part 107 Remote Pilot Certificate.

• Volume II: Past Performance: Provide up to three examples of similar size and scope to the PWS, including company name, POC, email, phone, contract number, location, type of work, and completion date. Preference is given to federal government past performance.

• Volume III: Price: Submit a completed SF1449 (pages 1-2, blocks 17a, 30a, 30b, 30c), acknowledge amendments, and provide firm-fixed price lump sum pricing per line item. Include any discount percentages.

• Contract Type: Firm-Fixed Price.

• Price Firmness: Prices in the quote must be held firm for 120 calendar days from the quote receipt date.

• Submission Deadline: April 17, 2026, at 11:00 AM CDT.

• Submission Method: Electronically via email to taylor.wisneski@noaa.gov.

• Questions Deadline: April 10, 2026, at 3:00 PM CDT via email to taylor.wisneski@noaa.gov.

• Evaluation Criteria: The award will be made to the responsible vendor whose quote is most advantageous, considering price and other factors. Evaluation factors other than cost or price are significantly more important than cost or price. The government expects to select the best technical proposal, followed by successful government-related past performance, and then price. A tradeoff evaluation may be performed.

• Confidence Ratings: High, Some, or Low confidence ratings will be used for technical proposals and past performance.

• Award Without Discussions: The government intends to award without discussions, but may conduct them if necessary.

• NAICS Code: Appears in Block 10 on SF1449.

• Responsibility: Vendor records in SAM and FAPIIS will be reviewed for integrity and business ethics.

• Vendors are encouraged to confirm receipt of their quotes prior to the due date.

• Quotes received after the deadline may be ineligible.

Form / Attachment / Pricing Sheet

This document is the NEPA Categorical Exclusion (CE) Screening Checklist for the KGYX Radar Vegetation Management – Phase 1: Survey & Inventory project. Its purpose is to field-verify if a future selective harvest of identified obstructions would qualify for a Categorical Exclusion under the National Environmental Policy Act (NEPA).

• Project: KGYX Radar Vegetation Management – Phase 1: Survey & Inventory.
• Location: Radar near 1 Weather Lane, Gray, ME.
• Reference: NOAA Administrative Order (NAO) 216-6A and 2016 Historical Site Survey.
• Constraint: This is a non-destructive survey; no vegetation is to be cut or marked.
• Sections:
  • Section 1: Quantitative Limits & Intensity: Assesses if the harvest footprint is limited to 70 acres and if protected species need removal.
  • Section 2: Extraordinary Circumstances Screening: Evaluates potential impacts on biological resources (protected hemlocks, Northern Long-Eared Bat), physical terrain (erosion control on slopes), and water resources (wetlands, vernal pools).
  • Section 3: Specimen Tree Verification: Checks if identified obstructions are among the 8 "Specimen Trees" (>30" DBH) from the 2016 report.
  • Section 4: Professional Recommendation: Forester's finding on whether extraordinary circumstances exist and if a CE is appropriate, along with required operational constraints (e.g., harvest windows, slope restrictions, wetland buffers).
• Certification: Requires forester's name, license, signature, and date.

This checklist is crucial for understanding the environmental compliance requirements and potential constraints associated with the vegetation management work. Bidders should review the criteria and potential findings to assess how operational limitations (e.g., timing, machinery, access) might affect project execution and costs. The forester's recommendation and any identified potential impacts will inform the scope and feasibility of the proposed work.