Summary
Orange County Sanitation District (OC SAN) seeks on-call Cost Estimating Professional Services to support its $3.6 billion 10-year Capital Improvement Program by providing planning, preliminary, and final cost estimates, quantity take-offs, independent cost estimating for progressive design-build projects, estimate reviews, and value-engineering cost reviews. Firms must demonstrate 8–10+ years of relevant experience, proficiency with HeavyBid software, and knowledge of wastewater systems; proposals require a Technical Proposal and separate Fee Proposal submitted electronically via OC SAN’s vendor portal. The solicitation was posted 2026-06-16 and proposals are due by 2026-07-30; questions are directed to professionalservices@ocsan.gov (Jenny H. Holliday, Senior Contracts Administrator).