Third Party Greenhouse Gas Reporting Verification

The County of Sacramento is soliciting proposals for conducting third-party greenhouse gas reporting verification services as required by the California Air Resources Board (CARB) for Kiefer Landfill, located at 12701 Kiefer Boulevard in southeastern Sacramento County, California.

Kiefer Landfill is a Class III landfill permitted for Modules M1 through M11, with M1 opened for waste fill operations in summer 1967. The landfill currently operates primarily in M4. The landfill gas (LFG) extraction system, which commenced operation on January 3, 1997, consists of vertical and horizontal extraction wells installed in modules M1, M1-L, M2, and M3, with expansion to M4 expected in late 2025. The LFG system feeds two gas destruction flares (5,000 and 4,000 SCFM capacity) and two gas-to-energy plants containing a total of five internal combustion engines (CAT 3616 engine/generator sets). The LFG collection system currently collects approximately 7,500 CFM of landfill gas.

The contractor shall provide third-party verification of greenhouse gas emissions reporting in compliance with CARB requirements. Services include verification of emissions calculations, monitoring systems, operational records, and documentation to ensure accuracy and regulatory compliance for the landfill's gas collection and destruction/utilization systems.

Key dates include: Q&A deadline of November 6, 2025 at 11:00 PM and proposal submission deadline of November 20, 2025 at 10:00 PM. Detailed scope of services, proposal format requirements, and evaluation criteria are provided in the attached documentation.