This Subcontract opportunity from California was posted on September 23, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Environmental Controls (Water Pollution)

Closed

State & Local

Submission Closed10/23/2026, 03:00:00 PM PDT

Contract Overview

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

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NAICS: 561730

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City of Westminster – Wakefield Valley Park

Solicitation # city-westminster-wakefield-valley-park

Conewago Enterprises, Inc. is soliciting bids from qualified Disadvantaged Business Enterprises for the City of Westminster Wakefield Valley Park project located in Maryland. The submission deadline for bids is November 18, 2026, at 12 PM EST, though this date may be subject to change based on future addenda. Available subcontracting and supply opportunities include fencing, landscaping, painting, seeding, surveying, and tree removal. Interested parties should contact the Estimating Department via email at [email hidden] to obtain the necessary bidding documents or to ask specific questions regarding the solicitation.

Conewago Enterprises, Inc.

POSTED

DEADLINE

Solicitation # 260572

The Orange County Transportation Authority is soliciting bids for a one-year landscaping services contract with a budget of $354,050. The contractor will provide comprehensive maintenance for various transit center facilities and maintenance and operations bases, including locations in Santa Ana, Anaheim, Garden Grove, Irvine, Newport Beach, Fullerton, Laguna Hills, and Brea, as well as OC Streetcar assets. The scope of work encompasses weekly turf mowing and edging, shrub and ground cover care, slope maintenance, irrigation system inspections and minor repairs, and general debris removal. Mandatory qualifications include a California class C-27 State Contractors license, an MGB License, a Qualified Applicator License with Category B attachment, and ISA Certified Arborist certification. This is a prevailing wage contract requiring strict adherence to the California Labor Code and federal Davis-Bacon Labor Provisions. Award will be granted to the lowest responsive and responsible bidder based on a weighted evaluation of 90% for the lump sum total price and 10% for the percent cost mark-up on parts. Bidders must submit their proposals electronically via the OpenGov Procurement portal, ensuring the Price Summary Sheet is provided in Microsoft Excel format to avoid being deemed non-responsive. The contract also mandates compliance with Level 2 Health, Safety, and Environmental specifications, Disadvantaged Business Enterprise program requirements, and comprehensive insurance and indemnification obligations.

F&A-Contracts Administration and Materials Management

POSTED

DEADLINE

Street Sweeping (2027-2029)

Solicitation # DISTRICT OF PEACHLAND RFP #2026-048

The Corporation of the District of Peachland is seeking proposals from qualified organizations to provide annual spring street sweeping services for approximately 63km of paved roadways. The selected contractor will enter into a Standing Offer Agreement for an initial three-year term covering the 2027, 2028, and 2029 seasons. There is an option to extend the agreement for two additional years, covering 2030 and 2031, subject to mutual agreement on pricing and terms. While the District intends to use the chosen contractor for its primary annual program, the agreement does not grant exclusivity for all sweeping-related tasks, as the District may hire other vendors for specific needs like parking lot sweeping. Interested parties must submit their proposals by the deadline of November 26, 2026, in accordance with the guidelines set forth in solicitation number 2026-048.

Interior Purchasing Office

POSTED

DEADLINE

Tree Trimming, Pruning, and Above-Ground RemovalThis subcontract involves professional tree trimming, pruning, skirting, and above-ground removal for Caltrans vegetation management projects located in Los Angeles and Ventura Counties. The scope of work focuses on maintaining safety clearances, specifically ensuring a 17-foot vertical clearance over traveled ways, and includes the removal of shrubs, vines, and palm trees using specialized rigging equipment and bucket trucks. Qualified providers must hold a CSLB license and adhere strictly to OSHA line-clearance standards to ensure all trimmed vegetation meets required safety specifications. The solicitation was posted on November 6, 2026, with a response deadline of November 24, 2026, falling under NAICS code 561730.

California Department of Transportation

POSTED

DEADLINE

IFB Tree Trimming, Pruning, & Removal Services, Los Angeles & Ventura Counties

Solicitation # 07A6504

The California Department of Transportation (Caltrans) is soliciting bids for tree trimming, pruning, and removal services within Los Angeles and Ventura Counties. The contractor is responsible for providing all necessary labor, equipment, and materials to perform thinning, skirting, and the removal of shrubs, vines, and trees, including palm trees. Key technical requirements include maintaining a 17-foot vertical clearance over traveled ways and shoulders and ensuring visibility for highway signs and safety devices. While above-ground removal is required, stump grinding or removal is explicitly prohibited. The contract is estimated to run from January 1, 2027, through December 31, 2029, with work assigned via routine requests (5-day response) and non-routine requests (24-hour response). Award will be granted to the lowest responsive and responsible bidder, with specific incentives available for DGS-certified Disabled Veteran Business Enterprises (DVBE), Small Businesses, and Microbusinesses. Compliance with State General Prevailing Wage Rates, SB 1383 organic waste regulations, and OSHA standards for line-clearance trimming is mandatory. Bids must be submitted in physical format by November 24, 2026, and must include all required certifications. Payment is contingent upon the submission of a Payee Data Record and certified payroll records, with all invoices submitted in triplicate to the Camarillo office.

California Department of Transportation

POSTED

DEADLINE

Hydroseeding & Seed SupplyThis subcontract agreement involves the supply and application of athletic turf seed mixtures for prime contractors working on City of Pasadena projects under the Parks, Recreation and Community Services Department. The selected contractor is responsible for providing City-approved Bermuda grass and Perennial Ryegrass mixtures, including detailed species and weight percentages for official approval. The scope of work requires the application of these mixtures across a 7-acre project area utilizing professional hydroseeding equipment. To be eligible for this contract, the provider must hold a valid California C-27 Landscaping Contractor license. The primary deliverable is the successful installation of hydroseeded turf across the designated 7-acre site. Interested parties must submit their responses by November 20, 2026, in accordance with the solicitation guidelines.

Parks, Recreation and Community Services Department

POSTED

DEADLINE

Athletic Field Turf Renovation and Hydroseeding

Solicitation # 2026-IFB-LM-0581

The City of Pasadena, through the Department of Parks, Recreation and Community Services, is soliciting bids for the renovation and hydroseeding of approximately seven acres of natural turf athletic fields at Victory Park. The project involves a comprehensive scope of work including preconstruction irrigation inspections, gopher mitigation, and soil processing to a minimum depth of eight inches to eliminate compaction. The goal is to establish a safe, durable, and properly graded athletic field. The anticipated start date is November 30, 2026, with a strict requirement that all initial renovation, grading, and hydroseeding be completed within 14 calendar days. The contract will be awarded to the lowest and best bidder, with evaluation factors extending beyond price to include material quality, bidder capability, financial resources, and past performance. To be considered responsive, bidders must provide pricing for every line item and possess a valid California Contractors State License Board C-27 Landscaping Contractor license. Submissions must be made via the City's eProcurement Portal by November 20, 2026. Key compliance requirements include adherence to State of California prevailing wage rates, CAL/OSHA safety standards for confined spaces, and ADA accessibility guidelines. Additionally, the successful bidder must provide a 5% electronic bid bond and maintain an active registration with SAM.gov.

Parks, Recreation and Community Services Department

POSTED

DEADLINE

Landscape Installation and MaintenanceThis subcontract agreement involves the provision of professional landscaping installation and maintenance services for the Independence Jail project under the jurisdiction of the Inyo County Public Works Department. The selected contractor will work under prime contractors to execute all tasks in strict accordance with the Independence Jail Landscaping Plan as well as the May 2020 Inyo County Public Works Department Standard Specifications and Standard Details. To be eligible for this engagement, the contractor must hold a valid California State License Board license. The primary objective of the contract is the delivery of a completed landscaping installation that conforms entirely to the established project plans. Interested parties must submit their responses by the deadline of December 11, 2026.

POSTED

DEADLINE

Independence Jail Landscaping

Solicitation # ZP 24-020

The Independence Jail Landscaping project, managed by the Inyo County Public Works Department under solicitation ZP 24-020, involves comprehensive landscaping services including excavation, grading, irrigation installation, and planting. The project requires a contractor with at least one year of landscaping experience and a valid CA State License Board number. Key technical requirements include adherence to the Model Water Efficient Landscape Ordinance (MWELO), the provision of a Soil Management Report, and the implementation of an irrigation system with a distribution uniformity low quarter of 0.65 or higher. The contractor is responsible for providing all labor, materials, and equipment, as well as delivering training on planting techniques and ongoing maintenance. All work must comply with the 2010 Americans with Disabilities Act (ADA), Inyo County Public Works Standard Specifications from May 2020, and prevailing wage rates. Bids must be submitted electronically via the OpenGov portal by December 11, 2026. Required submission materials include a bid proposal, vendor certifications, and a proposal guarantee of ten percent of the total bid amount. Upon contract award, the contractor must provide a Faithful Performance Bond and a Labor and Materials Payment Bond, both for 100 percent of the contract amount. The estimated construction cost for the project is 97,140.00. Final acceptance is contingent upon a Certificate of Completion certified by a licensed landscape contractor or architect, supported by as-built drawings, irrigation audit reports, and soil analysis documentation.

POSTED

DEADLINE

Tree Removal & ClearingThis subcontract opportunity involves providing tree removal and vegetation clearing services for prime contractors operating on projects within the Central Florida Tourism Oversight District. The scope of work requires the cutting, hauling, and disposal of trees and brush that obstruct signal and shaft installation sites, utilizing specialized equipment such as chainsaws and chippers to ensure project sites are fully cleared and ready for construction. The solicitation was posted on November 6, 2026, with a response deadline of December 7, 2026. Classified under NAICS code 561730, this contract is managed through the Central Florida Tourism Oversight District in Florida. Interested parties can find further details and submission guidelines via the MyFloridaMarketplace vendor portal.

Central Florida Tourism Oversight District

POSTED

DEADLINE

Invasive Plant Eradication and Control ServicesThis subcontract for Invasive Plant Eradication and Control Services involves the foliar application of herbicides to eliminate European beach grass, ice plant, and perennial veldt grass across five designated dune areas at Oceano Dunes. Working for prime contractors on behalf of the California Department of Parks & Recreation, the selected provider will utilize Clethodim and Glyphosate to achieve verified eradication of these targeted invasive species. A critical environmental requirement of the project is the ability to identify and protect the endangered Nipomo Mesa lupine. Qualified bidders must possess a valid California pest control business license along with QAL licenses for categories A, B, C, D, and F. The project is located in San Luis Obispo and falls under NAICS code 561730. Interested parties must submit their responses by the deadline of December 4, 2026.

California Department of Parks & Recreation

POSTED

DEADLINE

Iredell County Snow Plowing Services

Solicitation # 27-455-RFP-03

Iredell County is soliciting bids for snow plowing services under solicitation number 27-455-RFP-03 to ensure safe public access and operational continuity at various county facilities. The contractor is responsible for providing all labor, equipment, and materials to remove snow and ice, with a requirement that surfaces be clear and safe by 7:45 A.M. on business days. The scope includes standard removal for 2-4 inches of accumulation and alternate removal for 5-8 inches, with a mandatory response time of two hours following notification. Optional services for sidewalk clearing and salt preparation are also available. Performance locations span multiple sites in Statesville, Harmony, and Troutman, including the Government Center, Public Safety, and various EMS bases. Bids must be submitted via the OpenGov Procurement Portal by 3:00 PM on November 20, 2026. Awards will be granted to the lowest responsible, responsive bidder based on a combination of pricing, experience, equipment quality, and the ability to meet response times. Applicants must provide a detailed pricing schedule, a summary of qualifications, a copy of their snow removal policies, and three to five professional references. Required certifications include the Iran Divestment Act eligibility. Contractors must maintain comprehensive insurance, including $2,000,000 in general liability and $1,000,000 in automobile liability, with all policies written on an occurrence basis and insurers maintaining an A.M. Best rating of at least A-.

Facility Services Director

POSTED

2 days ago

DEADLINE

in 12 days

AI Contract Overview

This subcontract for Environmental Controls (Water Pollution) is issued by the Las Virgenes Municipal Water District for projects located in Calabasas, California. The selected contractor will be responsible for implementing and maintaining the Water Pollution Control Program for prime contractors, which includes the installation of silt fences, erosion control measures, and runoff prevention systems to ensure a compliant site runoff management system. The opportunity was posted on September 23, 2026, with a response deadline of October 23, 2026. This work falls under NAICS code 561730, focusing on specialized environmental control services to protect water facilities from pollution during construction activities.

General Info

Las Virgenes Municipal Water District subcontract for water pollution control in Calabasas, California.

Agency

California → Las Virgenes Municipal Water District

NAICS

561730 - Landscaping Services

Place of Performance

Calabasas, CA, 91302, USA

Set-Aside

NONE

Documents

This scope was carved out of 20260922050.

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

View the prime solicitation

Dardenne Tank Rehabilitation Project

AI Contract Breakdown

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Timeline

PhaseClosed

PostedSep 23

subcontract

Response DeadlineOct 23

Deadline has passed

Submission Closed

10/23/2026, 03:00:00 PM PDT

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Organization & Contact Information

AgencyCalifornia → Las Virgenes Municipal Water District

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → Las Virgenes Municipal Water District

Office AddressN/A

ContactsNo contact information available

Full Description

Implements and maintains the Water Pollution Control Program for prime contractors on LVMWD water facility projects. Installs erosion control, silt fences, and runoff prevention systems. Delivers a compliant site runoff management system.