B--NR-ARD-271 IMPROVE ION ANALYSIS RFP

The contract solicitation NR-ARD-271 IMPROVE ION ANALYSIS, issued under solicitation number 140P2126Q0009 by the Department of the Interior’s National Park Service, Regional Contracting office in Washington DC, seeks an Indefinite Delivery/Indefinite Quantity (IDIQ), Firm-Fixed Price contract for ion analysis services supporting the IMPROVE program. The contract period spans from August 1, 2026, to July 31, 2031, with one base year and five one-year ordering periods, plus an optional six-month extension. Performance will primarily occur at the contractor’s laboratory facility, with any work at government sites requiring prior coordination and approval. The scope revolves around the analysis of approximately 17,300 Module B nylon filters annually, plus associated laboratory and field blanks and QA replicates, to generate ion mass concentration data for nitrite, nitrate, sulfate, and chloride. Deliverables include ion analysis data files due within 60 days of batch receipt and an annual quality assurance report due within 60 days after the end of each performance period. All work must adhere to IMPROVE QAPP and ROVE SOPs, with any changes to analysis procedures requiring written approval from the Contracting Officer. Evaluation will be based on best value, with significant emphasis on past performance, evaluating technical approach, timeliness, customer satisfaction, and cost control, as well as small business participation, where prime offerors self-certified in SAM.gov receive maximum credit. The solicitation mandates compliance with specific subcontracting goals set by the Department of the Interior: 45.87% for small businesses, 5% each for socioeconomically disadvantaged, women-owned, service-disabled veteran-owned, and 3% each for HUBZone and Indian Small Business Economic Enterprises. Large offerors with proposed prices exceeding $700,000 must submit a subcontracting plan per FAR 52.219-9, and all subcontracts with further tiering must include FAR 52.219-8. Offerors must provide a contingency operations plan detailing data recovery, key personnel replacement, alternate locations, and validation methods. Technical proposals must also include accreditation certification and a completed Past Performance Questionnaire. Invoices under task orders must reference both the IDIQ and task order numbers and report the precise quantity of filters analyzed, aligned with accepted services. Proposals are due