Mariposa County  

Solid Waste Composting Facility

The Mariposa County Solid Waste Composting Facility is a major step in the plans to resolve the county’s waste related problems. The 7.5 million dollar project will help the County meet the State of California mandated 50% diversion of all waste that would otherwise be placed in the landfill. The compost facility will convert approximately 60% of the County’s mixed solid waste into materials that may be used for other purposes such as an amendment in producing the Daily Cover for the Landfill

 The Mariposa County Solid Waste Composting Facility is the first of its kind in California with an in-vessel composting system entirely enclosed within a building including an air and odor control system and a water re-circulation system. In addition the facility was designed with an observation room to allow visitors, residents, and students can observe and learn about this technology.

Holiday Schedule and Operating Hours

Karen's Corner

Landfill, Composting & Recycling Center 

Facility Information:

Address: 5593 HWY 49 N

                 Mariposa CA, 95338

Phone:    (209) 966-5165

Contact:  landfill@mariposacounty.org 

Hours of Operation:

                Thursday - Monday 8 am to 4 pm   

               (Closed Tuesdays,  Wednesdays, and Holidays)