Phase 1 Environmental Site Assessments for the West Sacramento Levee Improvement Program

The West Sacramento Area Flood Control Agency (WSAFCA) is requesting proposals for Phase 1 Environmental Site Assessments across three corridors of the West Sacramento Levee Improvement Program, with proposals due October 26, 2026 at 4:00 p.m. and a questions deadline of October 12, 2026. Work must comply with 40 CFR Part 312, ASTM E1527-21, CERCLA, and SARA, and be performed under supervision of a California-licensed Professional Geologist or Professional Engineer.

The scope covers approximately 69.5 combined acres across three corridors: Contract 1S (42.8 acres), Yolo Bypass East Levee-South (23.7 acres), and Union Pacific Railroad Closure Structure (3.0 acres). Deliverables include standalone Phase 1 reports for each parcel or separately owned non-APN area. The initial contract term is two years with one optional one-year extension and potential month-to-month continuation not exceeding six months for outstanding work. Phase 1 work is not subject to prevailing wage requirements; Phase II services, if separately authorized, are subject to California Department of Industrial Relations prevailing wage requirements.

Compensation is a fixed fee to be negotiated. The contractor must obtain Commercial General Liability coverage of $1,000,000 per occurrence and $2,000,000 aggregate, Commercial Automobile Liability of $1,000,000 per accident, Workers' Compensation at statutory limits, and Professional Liability of $1,000,000 per claim, with WSAFCA named as additional insured on all policies except Workers' Compensation. The contractor must register with the California Department of Industrial Relations and comply with Executive Order N-6-22 regarding Russia sanctions.

Evaluation criteria, weighted as follows: Proposal Transmittal Letter (12.5%), Proposer Qualifications and Experience (25%), Technical Approach (25%), Acceptance of WSAFCA's Standard Contract (12.5%), and Cost Proposal (25%). All proposals become public record following contract execution or rejection of all proposals, except portions exempted by law. Proposals must include transmittal letter, qualifications and experience documentation, technical project approach, cost proposal, and an example Phase 1 report. Three KMZ corridor mapping files and an ESA corridor map PDF are provided as geospatial reference materials.