This Government Contract opportunity from Maryland was posted on May 8, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Hydrologic and Watershed Modeling Services

Closed

State & Local

Submission Closed06/25/2026, 06:00:00 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

Federal

Hazardous Materials (HazMat) Certification and MitigationThis subcontract involves providing hazardous materials certification, inspection, and mitigation services for prime contractors working on GSA Federal Acquisition Service export projects. The scope of work includes the certification of hazardous materials classes 2, 3, 4, 5, 6, 8, and 9 in strict accordance with CFR Title 49 and DTR 4500.9-R Part II. To ensure full regulatory compliance, all labeling and packaging must adhere to MIL-STD-129 and MIL-STD-2073 standards, with the final deliverables consisting of compliant HazMat shipments and detailed compliance reports. Managed by the General Services Administration under NAICS code 541620, the opportunity was posted on October 13, 2026, with a response deadline of October 27, 2026. The contract is administered through the Special Contracting Branch A and B of the GSA FAS GSS QSCBA and QSCBB.

Gsa/fas/gss/qscba/special Contracting Branch A And Qscbb Special Contracting Branch B

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Flood Barrier Technical Advisory and Training ServicesThe Flood Barrier Technical Advisory and Training Services subcontract, issued by the Department of Defense under the W07V Endist Rock Island agency, focuses on providing specialized on-site technical support for US Army Corps of Engineers flood barrier projects. The selected provider will be responsible for monitoring barriers during floodwater loading, developing field solutions for horizontal and vertical obstructions, and delivering comprehensive training and monitoring reports. Key deliverables include hands-on instruction for government entities, contractors, and citizens regarding the setup, teardown, and repackaging of barriers. To ensure operational success, all personnel assigned to the project must possess a minimum of three years of real-world installation experience. The response deadline for this opportunity is November 12, 2026.

W07V Endist Rock Island

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Tank Inspection and Compliance AuditingThis subcontract opportunity with Navfacsyscom Mid-Atlantic involves providing technical inspections and compliance auditing for prime contractors working on facility projects. The scope of work focuses on conducting AST and UST inspections and managing the Integrated Maintenance Program using API 653 standards and NDT equipment. The selected provider will be responsible for delivering an active IMP log and comprehensive inspection reports. The project is located in Newport, Massachusetts, and falls under NAICS code 541620. Interested parties must submit their responses by October 29, 2026.

Navfacsyscom Mid-Atlantic

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Industrial Hygiene and Environmental TestingThis SDVOSB set-aside subcontract involves providing industrial hygiene and environmental testing services for prime contractors operating at VA Medical Center projects in Nashville, Tennessee. The scope of work focuses on conducting hazardous material testing and air quality monitoring throughout the demolition and construction phases to ensure safety and regulatory compliance. The selected provider must employ a Certified Industrial Hygienist to oversee operations and deliver detailed industrial hygiene reports and official clearance certifications. Managed by the Department of Veterans Affairs Network Contract Office 9, the project falls under NAICS code 541620 and is centered in the 37212 zip code area.

249-NETWORK Contract Office 9 (36C249)

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H346--Legionella Water Testing

Solicitation # 36C26224Q1533

Solicitation 36C26224Q1533 is a Request for Quotation issued by the Department of Veterans Affairs Network Contracting Office 22 for Legionella Water Testing and Consolidated Water Utilities Management Services across multiple VA Health Care Systems. The scope of work includes water sampling and testing per VHA Dir 1061, plumbing support for backflow device inspection and maintenance, the addition of testing ports, and utility water filter maintenance. Key deliverables include database entry into the Water Safety Management Tool, quality control of data, and annual Professional Engineer reviews of water utilities management plans and plumbing as-builts. The contractor must utilize a mobile application capable of reading and printing QR codes for sample point identification. This procurement is a 100 percent set-aside for Service-Disabled Veteran-Owned Small Businesses (SDVOSB) under NAICS code 541620. Award will be based on the lowest price from a responsible offeror, with responsibility determined on a pass/fail basis. To be eligible, offerors must provide proof of several critical certifications, including CDC Elite Lab and ISO/IEC 17025 certifications, as well as state-certified water sampler, licensed plumber, and Professional Engineer licenses for California, Arizona, and New Mexico. The contract features a base period from September 1, 2026, to August 31, 2027, with subsequent option periods. The final extended bid due date is November 10, 2026, at 10:00 AM Pacific Time, with answers to questions posted on November 3, 2026.

262-NETWORK Contract Office 22 (36C262)

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LEED/Energy Star Certification ConsultantThis subcontract opportunity is for a LEED/Energy Star Certification Consultant to support prime contractors on projects for the California Department of General Services. The selected consultant will be responsible for performing energy audits, conducting utility analysis, and utilizing energy modeling software to prepare submissions for the GBCI or EPA. The primary objective is to deliver all necessary documentation required to achieve LEED or Energy Star certifications. Qualified candidates must hold a LEED Accredited Professional certification to be eligible for this role. The solicitation was posted on October 13, 2026, with a response deadline of October 27, 2026. This engagement falls under NAICS code 541620 and is managed through the Cal eProcure system.

California Department of General Services

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Urban Forestry Technical Assessment & Risk AnalysisThe Urban Forestry Technical Assessment and Risk Analysis subcontract involves performing specialized technical field assessments for prime contractors on City of Atlanta urban forest projects. The scope of work includes conducting tree risk and natural area assessments, evaluating existing risk protocols, and developing comprehensive Tree Risk Methodology and Risk Management Protocols. Additionally, the contractor is responsible for identifying priority planting locations by analyzing heat vulnerability and energy burden data. To qualify for this engagement, personnel must be ISA Certified Arborists with TRAQ qualification. Key deliverables for the project include the finalized Tree Risk Methodology, detailed assessment reports, and prioritized planting lists. This opportunity is categorized under NAICS code 541620 and is associated with the City of Atlanta in Georgia.

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IFB/DCP/DPR/2609-1270095/Urban Forest Master Plan (UFMP)

Solicitation # PE-66062-NONST-2027-000000500

The City of Atlanta is soliciting a qualified Consultant to develop a 15-year Urban Forest Master Plan (UFMP) aimed at protecting, managing, and expanding the city's tree canopy. The primary objective is to reverse canopy decline and achieve 50 percent overall coverage while ensuring equitable access to nature. The selected Consultant will perform urban forest data and condition assessments, evaluate existing policies and staffing needs, and establish science-based goals and funding strategies. A critical component of the project is extensive community engagement, which includes six in-person public meetings, surveys, and the management of a neighborhood ambassador program involving 35 to 45 participants with a total stipend budget not to exceed 25,000 dollars. The project is expected to begin in Spring 2027 and must be completed by April 30, 2029, as it is funded through a USFS Inflation Reduction Act. The Consultant must have at least 10 years of experience in urban forestry, having completed three urban forest master plans since January 2016, specifically for cities with populations over 300,000 or areas exceeding 75 square miles. Deliverables include a logically organized, illustrative plan document provided in PDF, editable, and 25 printed formats. The project will be overseen by a Core Project Team consisting of managers from the Department of Parks and Recreation and the Department of City Planning, with final approval and adoption required by the City Council.

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Environmental Consulting & NEPA DocumentationThis subcontract for Environmental Consulting and NEPA Documentation supports prime contractors on pedestrian bridge projects for the City of Winder in Georgia. The selected provider will be responsible for performing environmental assessments, conducting special studies through sampling and assessment tools, and developing the necessary documentation to ensure full compliance with the National Environmental Policy Act and the GDOT Environmental Procedures Manual. The primary deliverables for this engagement include completed Environmental Documents and Special Study reports. Interested parties should note that the response deadline is November 19, 2026, and the work falls under NAICS code 541620.

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Environmental Compliance (SWPPP)This subcontract opportunity for the City of Norco involves providing environmental compliance services specifically focused on the implementation of Stormwater Pollution Prevention Plan (SWPPP) and NPDES requirements. The selected contractor will be responsible for supporting prime contractors on street improvement projects by installing oil absorbent booms, curb inlet filters, and various erosion and sediment control measures to ensure full regulatory compliance. The project is located in Norco, California, under NAICS code 541620. Interested parties must submit their responses by the deadline of November 4, 2026. The primary objective of the contract is the successful delivery of compliant SWPPP implementation and the proper installation of all required filtration devices.

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SWPPP Implementation & Environmental ControlThis subcontract for the County of Mariposa focuses on the implementation and management of Storm Water Pollution Prevention Plans for public works projects. The selected provider will be responsible for preparing SWPPP documentation and installing and maintaining erosion and sediment control measures specifically designed to protect Mariposa Creek. A primary objective of the contract is to ensure all site activities remain in strict compliance with the State of California Construction General Permit Order 2022-0057-DWQ. The project is categorized under NAICS code 541620 and will be performed in Mariposa, California. Interested parties must submit their responses by October 28, 2026. The scope of work combines technical environmental documentation with active on-site controls to mitigate pollution and manage stormwater runoff effectively throughout the duration of the construction projects.

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Transportation Accessibility ConsultantThe Transportation Accessibility Consultant subcontract involves performing specialized accessibility audits for prime contractors working on City of Boston Age Strong Commission projects. The selected consultant will evaluate vehicle fleets, boarding processes, and scheduling software to identify accessibility barriers using established ADA compliance checklists. The primary objective is to deliver detailed audit findings and actionable recommendations to support service modernization. Qualified candidates must hold certification in ADA compliance or accessibility auditing. This opportunity is based in Boston, Massachusetts, under NAICS code 541620. Interested parties must submit their responses by the deadline of November 9, 2026.

143 - Procurement

POSTED

1 day ago

DEADLINE

in 27 days

AI Contract Overview

The contract seeks specialized hydrologic and watershed modeling services to support water resource management, with a focus on reservoir capacity analysis, prediction of contaminants and algal blooms, and groundwater flow modeling. These tasks are critical for assessing water availability, identifying pollution risks, and ensuring long-term system resilience under varying environmental conditions. The work will involve advanced computational techniques and data-driven simulations to deliver actionable insights for operational planning and environmental protection. The solicitation is classified as a subcontract under NAICS code 541620, indicating it falls under scientific and technical consulting services. It was posted on May 8, 2026, with a response deadline of June 25, 2026, and is being managed by the Operational Reliability & Resilience agency under Maryland. While specific performance location details are not provided, the scope suggests the modeling efforts will apply broadly to water systems within the state, with results intended to inform decision-making around water supply reliability and ecosystem health. No set-aside details or point of contact information are listed in the available data.

General Info

Provide hydrologic and watershed modeling for water management, focusing on reservoirs and contaminants.

Agency

Maryland → Operational Reliability & Resilience

NAICS

541620 - Environmental Consulting Services

Place of Performance

MD, USA

Set-Aside

NONE

Documents

This scope was carved out of 106583.

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

View the prime solicitation

Water Resources Program Support: Source Water Supply and Protection, and Environmental Compliance

AI Contract Breakdown

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Timeline

PhaseClosed

PostedMay 8

subcontract

Response DeadlineJun 25

Deadline has passed

Submission Closed

06/25/2026, 06:00:00 PM UTC

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Organization & Contact Information

AgencyMaryland → Operational Reliability & Resilience

ContactsNo contacts available

OfficeN/A

Organization / AgencyMaryland → Operational Reliability & Resilience

Office AddressN/A

ContactsNo contact information available

Full Description

Provide hydrologic and watershed modeling including reservoir capacity analysis, contaminant and algae prediction, and groundwater flow modeling.

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