On-Call Third Party Review and Modeling Services

The Sacramento County Water Agency is seeking professional engineering services through a Request for Proposal (RFP) for on-call third-party review and modeling services within unincorporated areas of Sacramento County. The procurement focuses on engineering consultants who can provide comprehensive drainage study reviews, improvement plan assessments, and hydrologic/hydraulic modeling support. Key deliverables include reviewing drainage studies for development projects, ensuring compliance with hydrology and stormwater quality standards, and utilizing specialized modeling software such as HEC-RAS, XPStorm, StormCAD, SacCalc, and the Sacramento Area Hydrology Model. The RFP requires consultants to complete initial large drainage study reviews within 20 business days and resubmittal reviews within 15 business days, with potential additional tasks including developing master drainage studies and attending meetings with agency representatives. Proposal evaluation will be based on four specific criteria: quality of proposed services (50%), experience and qualifications of the project team (30%), familiarity with Sacramento County Standards (10%), and breadth of modeling software used (10%). The RFP was posted on February 27, 2025, with proposals due on March 27, 2025, and a question submission deadline of March 19, 2025.

The solicitation allows for multiple on-call contracts, with each contract valued at $500,000 and an initial contract term of three years, with an option to extend for two additional years. No specific set-aside designations or restrictions for disadvantaged enterprises were explicitly mentioned in the provided documentation. The procurement is open to professional engineering firms with demonstrated expertise in drainage planning, hydrology, and hydraulic modeling, particularly those familiar with Sacramento County's specific standards and regulatory requirements. The total potential contract value could reach up to $1,500,000 if multiple contracts are awarded, providing significant opportunities for qualified engineering consultants. The agency will select consultants based on their technical capabilities, proven experience, and ability to effectively support the Sacramento County Water Agency's drainage planning and development objectives.