Orange City Dump #3 (Closed Former Site) - Closed Landfill in Orange, California

Orange City Dump #3 (Closed Former Site) is a closed landfill located in Orange, California, United States. The facility is classified under NAICS code 562212, which covers Solid Waste Landfills. As a closed former site, it no longer accepts waste but remains under regulatory oversight for post-closure care. In the United States, closed landfills are regulated under the EPA's RCRA Subtitle D, which governs municipal solid waste landfills, and the Clean Air Act for landfill gas emissions. Post-closure requirements typically include monitoring of groundwater, leachate management, and landfill gas collection to mitigate environmental impacts. California has additional stringent regulations through the California Department of Resources Recycling and Recovery (CalRecycle) and local air quality management districts. The environmental significance of this site lies in its long-term monitoring and maintenance obligations. Proper closure and post-closure care are critical to prevent methane leakage, groundwater contamination from leachate, and other environmental hazards. The site's location in Orange County, a densely populated area, underscores the importance of effective management to protect nearby communities and ecosystems.

Orange City Dump #3 is situated in Orange County, California, a region with a Mediterranean climate and high population density. Closed landfills in such areas require careful management of landfill gas (primarily methane) to prevent greenhouse gas emissions and odor issues. Leachate management is also critical to protect groundwater resources, especially given the proximity to residential areas and the Santa Ana River watershed. Traffic and community impacts are minimal for a closed site, but ongoing monitoring ensures environmental safety.