Methane Surface Emissions Monitoring

Sacramento County is soliciting proposals for methane surface emissions monitoring services at Kiefer Landfill using alternative technologies such as drones, robots, or remote sensing instruments to access unsafe-to-walk areas, with proposals due September 16, 2026 at 3:00 p.m. under RFP 2026-PURB RFP-0083.

Services must comply with 40 CFR Part 60 and California Air Resources Board Regulation Section 95471 Surface Emission Monitoring procedures. The scope includes developing a monitoring plan, selecting and documenting equipment, measuring methane concentrations using volumetric or path-integrated methods with 30-second instrument response time, 2-meter location accuracy, and 0–500 ppm measurement range, identifying and mapping exceedances at 200 ppm or higher, and delivering data management and technical reporting in GIS-compatible formats. Measurements are conducted at 5-foot intervals.

Proposals must not exceed 10 pages (excluding key staff resumes) and must include company profile, service delivery plan, project manager identification, staff qualifications, relevant experience narratives, and references preferably from governmental organizations, along with separate cost proposals covering mobilization, monitoring, reporting, and optional follow-up services. Compensation is time and expenses based on rates stated in the proposal, with a maximum total payment to be specified. The consultant must maintain Commercial General Liability of $2 million per occurrence, Automobile Liability of $1 million per accident, and Professional Liability of $2 million per occurrence.

The County retains the right to award multiple contracts. Evaluation criteria are quality of proposed services, experience and qualifications, proposal compliance, and cost. Questions are due September 2, 2026. The contract location is Kiefer Landfill at 12701 Kiefer Boulevard, Sloughhouse, California 95683, with services performed on an on-call basis. The County may terminate without cause upon 30 days' written notice or for cause immediately. Electronic submissions are required through OpenGov Procurement.