This Government Contract opportunity from California was posted on July 1, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Environmental and Site Assessment Services

Closed

State & Local

Submission Closed07/10/2026, 08:30:00 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

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Sustainable Design/LEED ConsultantThe County of Doña Ana in New Mexico is seeking a Sustainable Design/LEED Consultant for a subcontract opportunity under NAICS code 541620. The selected consultant will provide sustainable design recommendations and documentation for prime contractors on various facility projects. Key responsibilities include developing sustainable design criteria during program development, identifying energy-efficient materials and systems, and utilizing energy modeling software to guide green building certifications. The consultant is required to hold a LEED AP or equivalent certification to ensure professional standards in delivering sustainable design reports and certification documentation. Interested parties must submit their responses by the deadline of October 6, 2026.

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DEADLINE

SWPPP ManagementThis subcontract for SWPPP Management involves the implementation and management of stormwater runoff controls for prime contractors working on Fallbrook Public Utility District projects. The selected provider will be responsible for installing Best Management Practices, performing site monitoring, and delivering compliance reports to prevent pollution and maintain erosion control measures. The opportunity is open to various small business set-asides, including SDB, WOSB, HUBZone, and Veteran-owned businesses, under NAICS code 541620. Managed by Filanc, the solicitation was posted on September 6, 2026, with a response deadline of September 29, 2026.

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Recalibration Documentation and Viewpoint Integration

261-NETWORK Contract Office 21 (36C261)

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SWPPP Compliance & Environmental Services

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Environmental & Permitting ConsultingThis subcontract for Environmental and Permitting Consulting involves providing regulatory compliance and permitting services for prime contractors working on Texas Water Development District pump station projects. The selected provider will be responsible for preparing permit applications, conducting environmental impact assessments, and utilizing environmental modeling tools to coordinate chemical system conversions with Texas regulatory agencies. The contract requires specialized expertise in State of Texas environmental regulations to ensure the delivery of approved permits and all necessary compliance documentation. This opportunity is managed by Infrastructure Engineering in Texas under NAICS code 541620, with a response deadline of October 20, 2026.

Infrastructure Engineering

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Environmental Compliance (SWPPP)This subcontract opportunity with Norstar Plumbing and Engineering, Inc. focuses on the implementation and management of the Stormwater Pollution Prevention Plan for prime contractors on JCSD projects. The selected provider will be responsible for installing erosion control measures and silt fences, performing continuous monitoring to prevent runoff, and delivering all necessary compliance reports. The project is categorized under NAICS code 541620 and is open to certified Disadvantaged Business Enterprises, Minority Business Enterprises, and Woman Business Enterprises. Interested parties must submit their responses by September 18, 2026, to support the JCSD Intervalley Pipeline Project.

Norstar Plumbing and Engineering, Inc.

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Street SweepingThis subcontract opportunity with Kiewit Infrastructure West Co. involves providing street cleaning and debris removal services for prime contractors working on EPA WIFIA water infrastructure projects. The selected provider will be responsible for the mechanical sweeping of roads and project access areas to ensure the cleanliness and safety of the sites, ultimately delivering fully cleaned roadways. The solicitation was posted on September 5, 2026, with a response deadline of September 17, 2026. This opportunity is designated for various set-asides, including Small Business, Small Disadvantaged Business, Women-Owned Small Business, and Disadvantaged Business Enterprise certifications. The contract falls under NAICS code 541620 and is associated with the North River Sanitary District No 1 WRRF upgrades and expansion.

Kiewit Infrastructure West Co.

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SWPPP/BMP MonitoringThis subcontract with Garney Pacific, Inc. focuses on providing Stormwater Pollution Prevention Plan and Best Management Practices monitoring for prime contractors. The scope of work involves inspecting erosion and sediment controls, maintaining BMPs to ensure environmental compliance, and delivering detailed compliance monitoring reports. The opportunity is designated for various small business set-asides, including Small Disadvantaged Business, Women-Owned Small Business, HUBZone, and Disadvantaged Business Enterprise certifications. It falls under NAICS code 541620, with a response deadline set for September 18, 2026.

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Environmental Compliance (SWPPP)This subcontract opportunity with Filanc focuses on the implementation and monitoring of Stormwater Pollution Prevention Plans for municipal projects within the City of Oceanside. The selected provider will be responsible for installing erosion control measures, performing regular site inspections, and generating the necessary reporting to ensure full compliance with environmental regulations and site runoff controls. The project is categorized under NAICS code 541620 and is designated as an SBA set-aside, making it available to various small business classifications including Small Disadvantaged, Women-Owned, HUBZone, and Veteran-Owned businesses. Interested parties must respond by September 16, 2026.

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Archaeological Research and Reporting

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Request for Proposals - Consultant Services for the Preparation of a Five-Year Consolidated Plan, FY28 Annual Action Plan

Solicitation # 5027-99-2101-6330-CON-SDLG

Hidalgo County is seeking a qualified consultant to develop essential federal housing and community development planning documents, including a Five-Year Consolidated Plan, the FY28 Annual Action Plan, and an Analysis of Impediments to Fair Housing Choice. The selected consultant must possess demonstrated expertise in HUD-funded programs, community needs assessments, and public engagement to help the county and participating jurisdictions establish long-term housing priorities and identify resources to address them. This solicitation, numbered 5027-99-2101-6330-CON-SDLG, was posted on September 5, 2026, with a response deadline of September 23, 2026. The project is managed by the Urban County Program in Texas, with primary coordination handled by the CDBG Division Manager in Edinburg. Interested parties can find further details and submission guidelines through the official procurement portal.

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DEADLINE

Environmental Compliance & Stormwater ManagementThis subcontract for Environmental Compliance and Stormwater Management supports prime contractors on Los Angeles County Public Works road projects. The selected provider will be responsible for water pollution control, environmental monitoring, and the implementation of Stormwater Best Management Practices. Key deliverables include the submission of stormwater compliance reports and the management of diesel equipment emissions reporting. Qualified candidates must hold QSD or QSP designations to ensure professional oversight of the Stormwater Pollution Prevention Plan. The opportunity is categorized under NAICS code 541620, with a response deadline of September 29, 2026. Performance will take place in Garfield Heights.

Los Angeles County Public Works

POSTED

3 days ago

DEADLINE

in 21 days

AI Contract Overview

The County of Riverside is seeking qualified contractors to provide environmental and site assessment services under a subcontract arrangement, with solicitation posted on July 1, 2026, and responses due by July 10, 2026. The scope of work includes conducting Phase I and Phase II environmental site assessments, asbestos and lead-based paint inspections, and soil testing across various project sites within the county. Services must comply with applicable regulatory standards and industry best practices to identify potential environmental hazards and support informed decision-making for development or remediation activities. The contract falls under NAICS code 541620, which categorizes environmental consulting services, and is open to eligible subcontractors with proven experience in environmental assessments and related fieldwork. All work is expected to be performed in California, with no specific location designated in the solicitation, indicating potential coverage across multiple sites within the county.