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Hydrological & Water Quality Modeling Specialist

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State & Local

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This subcontract opportunity is for a Hydrological and Water Quality Modeling Specialist to support prime contractors on projects for the New York City Department of Environmental Protection. The role focuses on advanced scientific modeling and data analysis, specifically requiring the execution of GCM-driven simulation runs, the maintenance of CE-QUAL-W2 models, and the development of LSTM approximation models utilizing the SCE/NSGA optimizer framework. The successful candidate will be responsible for delivering validated model outputs and detailed simulation reports. Qualified applicants must possess an advanced degree in Hydrology or Environmental Engineering. The work is performed in New York City under NAICS code 541620. Interested parties should note the response deadline of November 6, 2026, for this specialized technical engagement.

General Info

Hydrological modeling specialist for NYC DEP projects. Deadline November 6, 2026. Advanced degree required.

Documents

This scope was carved out of 82627Y0899.

The full solicitation package (1 document), including the RFP, is on the prime solicitation, not on this scope.

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82627Y0899-DEL-465

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Organization & Contact Information

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AgencyNew York → Department Of Environmental Protection
ContactsNo contacts available
OfficeN/A
Office AddressN/A
ContactsNo contact information available

Full Description

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Performs advanced scientific modeling and data analysis for prime contractors on NYC Department of Environmental Protection projects. Executes GCM-driven simulation runs, maintains CE-QUAL-W2 models, and develops LSTM approximation models using the SCE/NSGA optimizer framework. Requires an advanced degree in Hydrology or Environmental Engineering. Delivers simulation reports and validated model outputs.

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Same NAICS industry code

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NAICS: 541512
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SLED
82627Y0899-DEL-465
Solicitation # 82627Y0899
The New York City Department of Environmental Protection (DEP) intends to enter into a sole source agreement with Hazen and Sawyer under solicitation 82627Y0899-DEL-465. The contract focuses on providing technical supporting services, training, and the implementation of enhancements for the Operational Simulation Tool (OST), a dynamic water supply system software. The primary objective is to improve OST capabilities and flexibility while facilitating knowledge transfer to DEP staff, enabling the agency to maintain the system and provide modeling support for daily operations, infrastructure projects, long-term planning, and climate change vulnerability assessments with limited external assistance. The scope of work is divided into four primary tasks: 24/7 on-call technical support for troubleshooting and system failures; maintenance of ensemble forecast capabilities and hydrologic data; system stability and development involving Azure infrastructure and software updates; and the application of analytical tools for climate impact assessments and regulatory compliance. Key deliverables include technical documentation, Power BI reports, and GCM-driven simulation reports. The project utilizes technical frameworks such as OASIS, CE-QUAL-W2, and Azure cloud environments. While this is a sole source intent, other firms capable of providing these services in the future are invited to submit a letter of interest to the Agency Chief Contracting Officer by November 6, 2026.
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