This Subcontract opportunity from Colorado was posted on August 4, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

Top

Preliminary Assessment & Site Inspection Services

Closed

State & Local

Submission Closed08/10/2026, 08:00:00 PM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

Active Opportunities Like This One

NAICS: 541620

New

SLED

Site Conditions and Geotechnical AnalysisThis subcontract for Site Conditions and Geotechnical Analysis involves performing technical investigations of existing site conditions for prime contractors working on Housing Corporation of East Windsor projects. The selected provider will utilize soil sampling equipment and geotechnical testing tools to evaluate physical and environmental constraints, identifying critical issues that may impact overall project feasibility. These efforts will culminate in the delivery of essential technical input for the Existing Conditions and Constraints Memorandum. Managed by DAS Procurement for the state of Connecticut, the contract requires the provider to hold a Professional Geologist or PE license and maintain Professional Liability insurance. Interested parties must respond by November 14, 2026, regarding this opportunity which falls under NAICS code 541620.

POSTED

DEADLINE

Windstorm Risk Assessment & Mitigation ConsultingThis subcontract for Windstorm Risk Assessment and Mitigation Consulting supports prime contractors working on projects for the Housing Authority of the City of Brownsville in Texas. The selected consultant will provide technical windstorm risk analysis, utilizing catastrophe modeling and geospatial risk tools to perform risk modeling for weather-related perils. The scope of work includes evaluating the physical vulnerability of properties and delivering detailed risk assessment reports. The primary objective of these services is to provide data-driven recommendations to improve the insurability of the properties. This opportunity falls under NAICS code 541620 and requires the delivery of specific mitigation strategies to protect assets against windstorm damage. Interested parties must respond by December 17, 2026.

Brownsville Housing Authority

POSTED

DEADLINE

Groundwater Data Processing and Hydrogeological ModelingThis subcontract for Groundwater Data Processing and Hydrogeological Modeling supports UNICEF projects in Vanuatu by providing specialized geophysical data analysis. The selected contractor will be responsible for inverting raw TEM data to create inversion outputs, interpretive sections, and maps. By integrating these results with topography, geology, borehole records, and water quality data, the contractor will rank borehole investigation targets and deliver comprehensive technical groundwater assessment reports and site maps. To qualify for this engagement, the contractor must possess professional credentials as a hydrogeologist or geophysicist and have access to necessary GIS software. The work falls under NAICS code 541620 and focuses on delivering critical data processing and modeling services to assist prime contractors in identifying viable groundwater sources within the region.

POSTED

DEADLINE

Certified Industrial Hygienist (CIH) Reporting ServicesThis subcontract for Certified Industrial Hygienist (CIH) Reporting Services involves providing professional analysis of laboratory data for prime contractors working on California Department of General Services facility projects. The selected provider will analyze results to establish risk thresholds and author 100 signed final survey reports delivered in a room-by-room format including professional recommendations. To qualify for this engagement, the provider must hold Certified Industrial Hygienist (CIH) certification and maintain AIHA Competent Professional status. The solicitation was posted on November 6, 2026, with a response deadline of November 23, 2026, falling under NAICS code 541620.

California Department of General Services

POSTED

DEADLINE

Legionella Water Sample Collection ServicesThis subcontract for Legionella Water Sample Collection Services involves performing on-site water sample collection for prime contractors working on California Department of General Services facility projects. The scope of work includes conducting routine and investigative sampling of both domestic and non-potable water systems, specifically focusing on pre and post flush sampling and the measurement of residual disinfectant, temperature, and pH levels. The selected provider must manage the Chain of Custody and ensure all activities adhere to the AIHA Technical Framework: Legionella 2020 standards. Responsibilities include the delivery of collected samples accompanied by completed Chain of Custody forms. This opportunity falls under NAICS code 541620, with a response deadline of November 23, 2026.

California Department of General Services

POSTED

DEADLINE

On-Call Solid Waste Data Analysis and Economic Services

Solicitation # 26-202-S

Seattle Public Utilities is seeking an on-call consultant to provide expert solid waste data analysis and economic services to support the city's Zero Waste goals. This contract, with an estimated value of $625,000 and a duration of up to five years, focuses on leveraging extensive datasets to evaluate the effectiveness, equity, and feasibility of solid waste incentives, programs, and policies. The scope of work includes program evaluation using causal inference, economic modeling, demand forecasting, longitudinal analysis of waste characteristics, and the extraction of data from Microsoft Access databases. A key component of the engagement is the translation of complex technical findings into actionable insights through data visualization, strategic storytelling, and high-quality reports for both technical and non-technical audiences. The selection process is based on a weighted evaluation of project team qualifications and research and analytical capabilities, with a strong emphasis on equity-centered analysis and the ability to manage multiple projects in an on-call environment. Awarded consultants must adhere to strict compliance standards, including mandatory WMBE inclusion plans for contracts over $343,000, adherence to the Americans with Disabilities Act and WCAG accessibility guidelines, and compliance with Seattle's Equal Benefits and minimum wage ordinances. The contract is governed by a template that incorporates FAR Part 31 for allowable overhead costs and requires specific insurance coverages, including Commercial General Liability and Worker's Compensation. Work is assigned via individual work assignments, each with its own defined schedule and deliverables.

Seattle Public Utilities

POSTED

DEADLINE

Environmental and Resource Agency Permitting ConsultantThe Environmental and Resource Agency Permitting Consultant subcontract involves securing necessary resource agency permits for prime contractors working on bridge projects for the County of San Mateo. The selected consultant will be responsible for coordinating with the California Department of Fish and Wildlife and the US Army Corps of Engineers to obtain permits for work conducted in wetland drainage areas, while ensuring all activities remain compliant with Planning Permit PLN2013-00451. This engagement requires specialized expertise in resource agency permitting processes and a deep understanding of wetland regulations to successfully deliver approved permits. Managed by the Planning and Building agency, the solicitation was posted on November 6, 2026, with a response deadline of November 17, 2026.

Planning and Building

POSTED

DEADLINE

Solicitation # 2027-RFP - Big Wave Bridge-00211

The County of San Mateo, through the Planning and Building department, is soliciting proposals for a qualified consultant to secure resource agency and encroachment permits for the construction of the Big Wave New Bridge. Located at 386 Airport Street in Half Moon Bay, the bridge will span a wetland drainage area between a Big Wave parcel to the north and a County-owned parcel to the south to ensure pedestrian path continuity toward the Princeton area. This project is conducted under the conditions of approval for Planning Permit PLN2013-00451. It is important to note that the actual construction of the bridge and the application for the building permit are explicitly excluded from the consultant's scope of work. The contract has a term of one year, with an anticipated award date of November 24, 2026. Proposals must be submitted via the eProcurement portal by November 16, 2026, and must be divided into a technical proposal and a separate fee proposal. Award selection is based on a points-based scoring method where firm qualifications, project approach, proposed schedule, and price are each weighted at 25 percent. The County provides a procurement preference for local businesses and non-profits. All communications regarding the RFP must be handled through the authorized contact persons, Camille Leung and Amy Tang, or the eProcurement portal.

Planning and Building

POSTED

DEADLINE

Environmental Compliance and DrainageThis subcontract for the California Department of Transportation focuses on environmental compliance and drainage installation for highway projects in San Diego. The selected provider will be responsible for developing critical documentation, including Lead Compliance and Water Pollution Control Plans, while ensuring all operations adhere to Senate Bill 1383 regulations concerning treated wood waste. Technical deliverables include the installation of Modified Type OS Inlets and Temporary Drainage Inlet Protection. The contractor must provide both the approved compliance plans and the physical installation of drainage hardware to support prime contractors in meeting state environmental standards.

California Department of Transportation

POSTED

DEADLINE

Environmental and Archaeological Compliance MonitoringThis subcontract focuses on providing environmental and archaeological compliance monitoring for prime contractors working on Texas Parks and Wildlife Department projects. The primary scope of work involves coordinating with cultural resource personnel to establish machinery access routes that avoid archaeological features and overseeing the strict implementation of environmental Best Management Practices. The selected provider is responsible for delivering essential compliance reports and official resource protection sign-offs to ensure all regulatory requirements are met. This opportunity falls under NAICS code 541620 and is associated with the state of Texas, with a response deadline set for November 19, 2026.

Parks and Wildlife Department

POSTED

DEADLINE

CONSULTING AND PROFESSIONAL SERVICES FOR THE CSO RECEIVING ENVIRONMENT MONITORING PROGRAM: 2026/2027 CHILCO-BROCKTON, MACDONALD AND NEW WEST TANK

Solicitation # 26-0482

Metro Vancouver is seeking proposals from qualified environmental consulting firms to provide professional services for the 2026/2027 Combined Sewer Overflow Receiving Environment Monitoring Program. This project focuses specifically on the Chilco-Brockton, MacDonald, and New West Tank CSO outfalls. The selected consultant will be responsible for a comprehensive range of activities, including the review of historical data, the development and execution of sediment quality and benthic invertebrate monitoring programs, field investigations, and laboratory coordination. Beyond data collection, the scope of work encompasses environmental effects assessments, the interpretation of monitoring results, and the preparation of detailed reports and stakeholder presentations. The contract also includes all necessary project management services to ensure the program is implemented effectively. Interested firms must submit their proposals by the deadline of December 4, 2026, under solicitation number 26-0482.

POSTED

DEADLINE

Mine Rehabilitation Reporting and Technical SupportThis subcontract for Mine Rehabilitation Reporting and Technical Support involves providing specialized technical monitoring and progressive reporting for prime contractors working on Ontario Ministry of Energy and Mines projects. The scope of work requires high-level expertise in geotechnical, water resource, geochemical, and ecology fields to ensure all rehabilitation efforts comply with the Species at Risk Survey and other regulatory standards. The project is managed under the Government of Ontario's Energy and Mines agency and is categorized under NAICS code 541620. Interested parties must submit their responses by December 7, 2026, to support the delivery of essential progressive rehabilitation reports and technical oversight within Canada.

Energy and Mines

POSTED

1 day ago

DEADLINE

in 29 days

AI Contract Overview

The Colorado Department of Public Health and Environment is seeking a subcontractor to provide Preliminary Assessment and Site Inspection services. The scope of work involves conducting detailed site inspections and preliminary assessments, which include field data collection, the coordination of sampling efforts, and the delivery of comprehensive reporting. This opportunity is categorized under NAICS code 541620. Interested parties must submit their responses by the deadline of August 10, 2026, following the posting date of August 4, 2026. Further details and submission processes can be accessed through the provided agency procurement link.