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This Government Contract opportunity from California was posted on June 9, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

Hazardous Waste Disposal and Treatment Services

Closed
State & Local

Contract Overview

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

Active Opportunities Like This One

NAICS: 562212
SLED
Landfill Disposal Site Services in Sonoma County
Solicitation # 04A7638
The California Department of Transportation (Caltrans) is soliciting bids for Landfill Disposal Site Services in Sonoma County under solicitation number 04A7638. The selected contractor will provide a disposal site for an estimated 1,875 tons of non-compacted refuse, miscellaneous litter, and debris, as well as 625 tons of green waste, excluding tree stumps. To be eligible, the disposal facility must be located within a 20-mile radius of the Caltrans Maintenance Station at 224 Lincoln Street in Santa Rosa, California. The contractor is required to maintain all necessary permits and licenses, ensure the site remains accessible during rainy weather, and comply with environmental regulations, including Senate Bill 1383 and EPA standards. Bids must be submitted via mail or hand-delivery by October 29, 2026, at 2:00 p.m. Pacific Time; electronic submissions are not accepted. The contract will be awarded to the responsible bidder offering the lowest price who meets all specifications. A 5% preference, capped at $50,000, is available for certified Small Business (SB) or Micro Business (MB) bidders. Key deliverables include providing signed weight scale receipts for every drop-off and submitting itemized monthly invoices in triplicate to the Fairfield, California office. Contractors must also adhere to strict data security standards for State-owned data and disclose any use of generative AI in their deliverables.
California Department of Transportation

POSTED

13 days ago

DEADLINE

in 2 days
NAICS: 562212
SLED
Landfill Disposal Services
Solicitation # RFQ-2026-024
The Zone 7 Water Agency is soliciting quotations under RFQ-2026-024 for landfill disposal services to be performed in Livermore, California. The contract is for an initial three-year term with the option to extend for two additional 12-month periods. The scope of work involves the disposal of various waste types, including dry sludge (greater than 75 percent solid), construction and demolition debris, and sludge media. The successful contractor will be responsible for providing weight tickets for every load and submitting monthly summary reports to the Agency's Maintenance and Construction Supervisor. Award decisions will be based on the best interest of the Agency, evaluating total costs for the first three years alongside the bidder's compliance with RFQ requirements, experience, and reputation. Bidders must submit their costs on the provided Bid Form without alterations and include a valid California Contractor's License, an Acknowledgment of Insurance Requirements, and an Exception and Deviation Form. All waste must be managed in accordance with federal, state, and local laws, and the contractor maintains the right to inspect and test waste to ensure it meets acceptance criteria. Payment terms are generally net 30 days following the approval of invoices, which must include a proper purchase order or contract number. The contractor is required to maintain all necessary permits and licenses throughout the agreement and must notify the Agency of any changes to facility operations. Responses are due by October 29, 2026, at 2:00pm via the E-Procurement Portal.
Zone 7 Water Agency

POSTED

15 days ago

DEADLINE

in 2 days
NAICS: 562212
International
Vaughan Landfill Gas Monitoring
Solicitation # RFP26-241
The City of Vaughan is soliciting proposals for the operation, maintenance, and monitoring of the Landfill Gas (LFG) collection and flaring system at the closed Vaughan Landfill, located northeast of Teston Road and Keele Street. The selected supplier will be responsible for managing the LFG control system, conducting bi-monthly site visits and extraction well monitoring, and providing a secure web-based interface for real-time operational data. Key deliverables include the submission of bi-annual gas monitoring reports to the Ministry of Environment Conservation and Parks (MECP) every February and August, as well as the development of Standard Operating Procedures. The project also requires the supplier to provide consulting expertise to support the City's landfill closure plan. Proposals must be submitted exclusively through the Bids&Tenders online portal by November 9, 2026. Mandatory requirements for consideration include a valid Professional Engineering License to practice in Ontario and a Gas Technician 1 Certification. Evaluation is based on a cumulative score consisting of a technical proposal (70 points), requiring a minimum score of 70 percent to advance, and a relative pricing evaluation (30 points). The contract includes a net 30-day payment term and an annual cash allowance of 20,000 dollars for parts and equipment with a maximum markup of 5 percent. Comprehensive insurance coverage is required, including Professional Liability of at least 1 million dollars and Sudden and Accidental Pollution Liability of at least 2 million dollars.
City of Vaughan

POSTED

19 days ago

DEADLINE

in 13 days
NAICS: 562212
SLED
Landfill Disposal Services
Solicitation # RFQ-2026-024
Zone 7 Water Agency is soliciting quotes under RFQ-2026-024 for Landfill Disposal Services to be performed in California. The agency seeks a qualified contractor with at least two years of continuous experience in landfill disposal and a valid California Contractor's License. The resulting contract will be for an initial three-year term, with the option to extend for two additional 12-month periods. Proposals must be submitted via the E-Procurement Portal by October 29, 2026, at 2:00pm. The agency intends to award the contract to the lowest responsive and responsible bidder, though it reserves the right to select a quotation based on the best interest of the agency, considering factors such as experience, quality, and reputation. The selected contractor will be responsible for receiving and disposing of agency waste in compliance with all federal, state, and local laws. Key deliverables include providing weight tickets for every load and submitting monthly summary reports of waste received to the Maintenance and Construction Supervisor. The contractor is authorized to inspect waste upon delivery and may reject nonconforming materials that do not meet approved waste profiles or legal requirements. Invoicing may occur on a one-time or monthly basis, with standard payment terms of thirty days following approval. Bidders must provide a completed Bid Form, a Vendor Questionnaire, an Exception and Deviation Form, and an Acknowledgement of Insurance Requirements to be considered.
Maintenance

POSTED

19 days ago

DEADLINE

in 2 days

AI Contract Overview

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The contract pertains to the final treatment, recycling, or disposal of hazardous waste at permitted off-site facilities, specifically under the NAICS code 562212, which indicates hazardous waste treatment and disposal services. It is issued as a subcontract by the California Department of Water Resources, focused on managing hazardous waste in compliance with state and federal regulations. The contract aims to ensure environmentally safe and legally compliant handling of hazardous waste by engaging qualified service providers. The solicitation was posted on June 9, 2026, with a response deadline set for July 8, 2026. Although specific location details for the place of performance are not provided, the contract involves work tied to California. This opportunity is part of the department's efforts to manage waste responsibly, minimizing environmental impact through proper treatment, recycling, or disposal at authorized off-site treatment facilities. Interested vendors are expected to adhere to all relevant regulatory requirements and provide services in line with the department's environmental and safety standards.

General Info

Subcontract for hazardous waste treatment, recycling, or disposal under CA Dept of Water Resources compliance.

Place of Performance

CA, USA

Set-Aside

NONE

Documents

This scope was carved out of 10219611.

The full solicitation package (2 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

IFB 10219611 Hazardous Waste Removal Services

AI Contract Breakdown

Uniform Contract Format

No documents to break down

The breakdown needs solicitation documents. None were found from this contract's source.

Timeline

PhaseClosed
Posted

subcontract

Response Deadline

Deadline has passed

Submission Closed

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Organization & Contact Information

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AgencyCalifornia Department of Water Resources
ContactsNo contacts available
OfficeN/A
Office AddressN/A
ContactsNo contact information available

Full Description

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Final treatment, recycling, or disposal of hazardous waste at permitted off-site facilities.

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Same awarding agency

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The California Department of Water Resources is soliciting bids for geological exploration drilling in the Salton Sea watershed to support vegetation enhancement projects at dust suppression areas. The contract consists of a one-year base term starting in February 2027, with two optional one-year extensions. Key technical requirements include reaming exploratory holes to a 16-inch diameter at depths of 800 feet and installing triple nested monitoring wells and extraction wells using SCH80 PVC casing. Bidders must possess a C-57 Water Well Drilling License, and personnel must document at least five years of applicable experience along with current certifications in First Aid, CPR, Defensive Driving, and Sexual Harassment Prevention. The contract will be awarded to the lowest responsible bidder based on the total bid amount for all years. Bidders must commit to a minimum of 3 percent Disabled Veteran Business Enterprise participation and provide performance and payment bonds equal to 100 percent of the contract amount. Bids are due by December 9, 2026, at 4:00 PM and must be submitted under sealed cover, including both a hardcopy and an electronic version on a USB drive. Payment is processed monthly in arrears within 45 days of receiving an undisputed invoice, with a 10 percent retention held until 30 days after the satisfactory completion of work as verified by the DWR Contract Manager.
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Dam Safety Engineering Services Southern California
Solicitation # 10221501
The California Department of Water Resources, Division of Operations and Maintenance and Dam Safety Services Branch, is soliciting Statements of Qualification for as-needed engineering and related services to support the review, inspection, evaluation, analysis, and oversight of structures associated with the State Water Project. With an estimated total contract range between 30 million and 40 million dollars, the work primarily focuses on the Southern Field Division, Castaic Field Division, and FERC Project Nos. 2426 and 2100, with potential backup support for the Oroville, Delta, and San Luis Field Divisions. Key services include dam performance surveillance, the development of monitoring plans and technical information documents, and specialized inspections involving drones, ROVs, and rope access for various appurtenances such as hydropower plants, spillways, and gates. The contract period is estimated to run from March 2, 2027, to March 1, 2030, with awards based on a most qualified selection process involving panel scoring and interviews. Qualified firms must submit their SOQs by November 17, 2026, and are required to provide a new Generative AI disclosure. Selected contractors must comply with Department of Industrial Relations prevailing wage requirements and provide comprehensive quality control and worker safety programs. Administration is managed by the DWR Contract Manager, with payments issued within 45 days of receiving undisputed invoices following verbal notice of work acceptance.
Engineering Services

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7 days ago

DEADLINE

in 21 days
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NAICS: 541512
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Real-Time River Forecasting System
Solicitation # 10222412
The California Department of Water Resources is seeking a contractor to design, implement, and provide technical support for a Real-Time River Forecasting System. The project involves creating an independent Community Hydrologic Prediction System (CHPS) Operator-Client environment using Delft-FEWS and/or CHPS to mirror the functionality, workflows, and outputs of the California-Nevada River Forecast Center system. Key deliverables include system design and configuration, a fully operational system capable of 24/7 real-time data integration, system validation, staff training, and ongoing annual maintenance. The anticipated contract term runs from December 1, 2026, through November 31, 2029, with a total budget not to exceed $750,000. This fixed-price contract will be awarded to the responsive and responsible bidder with the highest total score based on a 154-point evaluation system, which weights technical capability and cost at 70 points each, with additional incentives for Small Business and Disabled Veteran Business Enterprise (DVBE) participation. DVBE participation is required for this solicitation. Bidders must submit a hardcopy proposal, an electronic copy on a USB drive, and a separately sealed cost worksheet by November 9, 2026, at 3:00 p.m. PT. Mandatory requirements include a Generative AI disclosure, certification of compliance with California Civil Rights Laws, and the maintenance of insurance coverage for the full term of the agreement.
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DEADLINE

in 13 days
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