This Government Contract opportunity from California was posted on September 10, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Environmental Testing & Waste Characterization

Closed

State & Local

Submission Closed09/24/2026, 09:00:00 PM UTC

Contract Overview

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

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NAICS: 541620

New

SLED

ENVIRONMENTAL TRUST Comprehensive E mergency Management Plan Update & Environmental Engineering and Consulting Services

Solicitation # Environmental-Trust_RFP_FY-2027_Emergency-Plan-Update-Environmental-Services_10202026.pdf

The Confederated Tribes of the Colville Reservation is seeking professional services for a combined maximum budget of $289,497, divided into two primary functional areas. The first area, Emergency Management Planning, is capped at $150,000 and involves updating the 2014 Comprehensive Emergency Management Plan, developing Emergency Support Functions, creating hazard-specific annexes, and establishing the Tribes' first Continuity of Operations Plan and Tribal Threat and Hazard Identification and Risk Assessment. This scope also includes the development of an all-hazards tabletop exercise package and the facilitation of coordination workshops to integrate these planning components. The second area, Environmental Engineering and Consulting Services, is capped at $139,497 and focuses on technical field operations in Nespelem, Washington. Key tasks include biannual groundwater monitoring and testing at the Nespelem Post and Pole site, as well as the characterization, removal, and lawful disposal of hazardous materials at the Nespelem Recycle Center. The contractor must adhere to strict quality standards, including the use of approved Quality Assurance Project Plans and Health and Safety Plans, and provide detailed verification reports. Mandatory monthly progress reports are required for all activities, and all project communication costs must be integrated into the respective task budgets. TERO fees are handled separately by the Tribal Employment Rights Office and are not included in the scope of work budget.

Confederated Tribes of the Colville Reservation

POSTED

DEADLINE

Biological Monitoring and Environmental ConsultingThis subcontract for Biological Monitoring and Environmental Consulting supports prime contractors on public works projects for the City of Tustin. The selected provider will be responsible for conducting site biological surveys and providing continuous monitoring and reporting throughout the construction phase to ensure full environmental compliance. The scope of work includes the delivery of detailed biological monitoring reports to document findings and adherence to regulations. Interested parties must submit their responses by December 10, 2026, under NAICS code 541620 for the Public Works agency.

POSTED

DEADLINE

Illicit Discharge Detection & Analytical MonitoringThis subcontract for Illicit Discharge Detection and Analytical Monitoring involves providing specialized field screening and laboratory analysis for prime contractors working on stormwater projects in York County, South Carolina. The scope of work includes conducting visual observations of outfalls, performing field screening monitoring, and executing source tracing to identify and eliminate illicit discharges. All water sampling must follow strict chain-of-custody procedures using field meters and sampling kits, with all laboratory analysis adhering to SCDES standards. The selected provider is responsible for delivering comprehensive field screening data, analytical laboratory results, and detailed source tracing reports. This opportunity falls under NAICS code 541620 and is managed through the South Carolina Procurement office. Interested parties must submit their responses by the deadline of December 10, 2026.

POSTED

DEADLINE

Dry Weather Screening Program Development & ManagementThis subcontract focuses on the development and management of a Dry Weather Screening Program for stormwater projects in York County, South Carolina. The selected provider will perform technical design and regulatory compliance mapping for prime contractors, specifically ensuring adherence to SCDES NPDES General Permit requirements for SMS4 boundaries. Key technical responsibilities include the creation of a Dry Weather Screening Guidance Manual, the mapping of outfalls, the identification of priority areas, and the execution of source tracing. The contractor is responsible for managing project budgets and maintaining strict quality control throughout the engagement. Primary deliverables include the final Guidance Manual, detailed Assessment Reports, and regular Monthly Progress Reports. This effort falls under NAICS code 541620 and is managed through the South Carolina procurement system.

POSTED

DEADLINE

Consulting Services for the Development and Implementation of a Dry Weather Screening Program

Solicitation # 3062

York County, South Carolina, is soliciting proposals for consulting services to develop and implement a Dry Weather Screening Program. This initiative is required to fulfill the South Carolina Department of Environmental Services NPDES General Permit for regulated small Municipal Separate Storm Sewer Systems (SMS4). The selected consultant will be responsible for creating a technical guidance manual, verifying and updating the storm sewer system outfall map and GIS data, conducting field screening and analytical monitoring to detect illicit discharges, and providing an assessment report and staff training. All field screening must be performed after at least 72 hours of dry conditions following a rainfall of 0.10 inches or more, and the final program must be integrated into the County's Illicit Discharge Detection and Elimination Program and Stormwater Management Plan. The procurement process involves a selection committee that evaluates proposals based on past performance, personnel experience, project approach, and costs. Technical proposals are scored first, followed by the opening and integration of the cost proposal. Short-listed firms may be required to provide oral and visual presentations. The contract includes a non-appropriation clause, requires compliance with Title VI of the Civil Rights Act of 1964 and Section 504 disability accommodations, and mandates that all materials produced belong exclusively to York County. Proposals must be submitted via the OpenGov portal or delivered to the York County Procurement Department by the specified deadline, with quoted prices remaining valid for 90 days.

POSTED

DEADLINE

Dining Sustainability ServicesThis subcontract for Dining Sustainability Services at Georgia College and State University focuses on the auditing and implementation of sustainability initiatives for prime contractors. The selected provider will be responsible for developing strategies to reduce the dining program's carbon footprint, implementing waste reduction measures, and tracking overall progress toward established performance goals. Key deliverables include the creation of comprehensive sustainability reports, detailed waste reduction plans, and the execution of various green initiatives. Interested parties should note the response deadline of December 17, 2026, for this project categorized under NAICS code 541620.

Georgia College and State University

POSTED

DEADLINE

Licensed Professional Service ProviderThis subcontract opportunity is for a Licensed Professional Service Provider to perform professional services for prime contractors on State of Alabama projects under the Finance Facilities Maintenance agency. The selected provider must execute all tasks in accordance with Alabama state law and professional standards, ultimately delivering completed professional services or certified reports. To be eligible, providers must maintain valid professional licenses, a certificate of insurance, and current registration for Alabama state and local taxes. Interested parties should note the response deadline of November 2, 2026, and refer to NAICS code 541620 for the scope of work.

Finance Facilities Maintenance

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DEADLINE

Water Treatment Chemical Technical ServicesThe Water Treatment Chemical Technical Services subcontract involves providing specialized technical consulting for prime contractors working on City of McAllen Public Utility water treatment projects. The selected provider must possess professional expertise in coagulation and flocculation processes to deliver critical technical support. Key responsibilities include assigning a Service Technician Representative to adjust feed rates to meet turbidity goals based on raw water quality. In addition to routine consulting, the contractor is required to respond to emergency technical calls within 24 hours using specialized water quality testing equipment. This engagement falls under NAICS code 541620 and is associated with the City of McAllen in Texas, with a response deadline set for January 21, 2027.

POSTED

DEADLINE

SWPPP Preparation and ManagementThis subcontract opportunity involves the preparation and management of the Stormwater Pollution Prevention Plan for prime contractors working on Yuba County Department of Public Works projects. The selected provider will be responsible for the creation of SWPPP documentation and the practical implementation of erosion control measures as specified under Bid Item 6, ensuring the delivery of an approved plan and the maintenance of compliant site controls. The solicitation is categorized under NAICS code 541620 and was posted on October 28, 2026. Interested parties must submit their responses by the deadline of November 18, 2026. This project is managed by the Public Works agency within the state of California.

POSTED

DEADLINE

Hazardous Materials Inspection and InventoryThis subcontract, managed by DAS Procurement for the State of Connecticut, involves the inspection and inventory of hazardous building materials for prime contractors working on state facility projects. The primary scope of work requires the identification and cataloging of hazardous substances, specifically asbestos and lead, in accordance with Section 50 30 00. The final deliverable for these services is a comprehensive hazardous materials inventory report. The opportunity is categorized under NAICS code 541620 and was posted on October 28, 2026. Interested parties must submit their responses by the deadline of December 16, 2026, at 3:00 PM. Further information and submission details can be accessed through the CTSource Bid Board portal.

POSTED

DEADLINE

Environmental and Technical Due DiligenceThis subcontract for Environmental and Technical Due Diligence involves performing technical inspections and environmental assessments for prime contractors managing Texas Department of Banking real estate sale projects. The scope of work includes conducting Phase I Environmental Site Assessments, property condition assessments, and structural evaluations of buildings and parking areas through the use of structural testing tools and environmental sampling. Qualified providers must hold Professional Engineer or Licensed Environmental Professional certification to deliver the required Phase I ESA and Property Condition Reports. The opportunity is categorized under NAICS code 541620, with a response deadline set for November 19, 2026.

Texas Department of Banking

POSTED

DEADLINE

Environmental Consultant (CDBG Compliance)The City of Alamo is seeking an Environmental Consultant for a subcontract to perform environmental reviews and assessments for prime contractors on CDBG-funded infrastructure projects. The selected consultant will be responsible for conducting environmental screenings, identifying potential impacts related to sewerage improvements, and preparing the necessary documentation for the CDBG application process. Final deliverables include comprehensive environmental assessment reports or compliance certifications. Qualified candidates must possess specific experience with Georgia Department of Community Affairs grant programs as well as CDBG, EIP, and RDF requirements. This opportunity falls under NAICS code 541620, with a response deadline set for November 30, 2026.

City of Alamo

POSTED

about 19 hours ago

DEADLINE

in about 1 month

AI Contract Overview

This subcontract for Environmental Testing and Waste Characterization involves performing sampling and waste extraction tests for prime contractors on Sacramento County Water Agency facility projects. The selected provider will use laboratory testing equipment to sample spent silica sand and anthracite media to determine if materials are hazardous or non-hazardous, ensuring full compliance with federal, state, and local regulations. The primary deliverables include detailed waste characterization reports and hazardous status certifications. The project is located in Sacramento, California, under NAICS code 541620. Interested parties must submit their responses by the deadline of September 24, 2026.

General Info

Environmental testing and waste characterization for Sacramento County Water Agency projects by 9/24/2026.

Agency

California → Sacramento County Water Agency

NAICS

541620 - Environmental Consulting Services

Place of Performance

Sacramento, CA, 95814, USA

Set-Aside

NONE

Documents

This scope was carved out of 41020.

The full solicitation package (3 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Vineyard Surface Water Treatment Plant Filter Repair Project

AI Contract Breakdown

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Timeline

PhaseClosed

PostedSep 10

subcontract

Response DeadlineSep 24

Deadline has passed

Submission Closed

09/24/2026, 09:00:00 PM UTC

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Organization & Contact Information

AgencyCalifornia → Sacramento County Water Agency

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → Sacramento County Water Agency

Office AddressN/A

ContactsNo contact information available

Full Description

Performs sampling and waste extraction tests for prime contractors on Sacramento County Water Agency facility projects. Samples spent silica sand and anthracite media using laboratory testing equipment to determine hazardous or non-hazardous status in compliance with federal, state, and local regulations. Delivers waste characterization reports and hazardous status certifications.

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