Household hazardous waste drop-off in San Luis Obispo County, California

Household hazardous waste programs that list San Luis Obispo County, from county, city and regional agency pages, with the DTSC household hazardous waste facility map as a starting point. Most programs serve only their own residents, so check “who can use it” on each listing.

Part of the San Luis Obispo-Paso Robles area.

Drop-off site

Permanent drop-off sites

• Chicago Grade Landfill Household Hazardous Waste Drop-off
  Permanent drop-off · 2290 Homestead Rd, Templeton, CA 93465
• Cold Canyon Landfill Household Hazardous Waste and E-Waste Drop-off
  Permanent drop-off · 2268 Carpenter Canyon Rd, San Luis Obispo, CA 93401
• Heritage Ranch Household Hazardous Waste and E-Waste Drop-off
  Permanent drop-off · 4870 Heritage Rd, Paso Robles, CA 93446
  Who can use it: Heritage Ranch residents only
• Nipomo household hazardous waste Facility
  Permanent drop-off · 509 Southland Street, Nipomo, CA 93444
  Who can use it: San Luis Obispo County residents
• Paso Robles Landfill Household Hazardous Waste Drop-off
  Permanent drop-off · 9000 Highway 46 E, Paso Robles, CA 93446

Closed or ended programs

The official source says these programs have closed or ended. They are listed so you don’t make a wasted trip.

• Morro Bay household hazardous waste Collection Facility Closed
  Permanent drop-off · 160 Atascadero Rd, Morro Bay, CA 93442
  IWMA closed the Morro Bay HHW facility at the former wastewater plant; final residential drop-off was Sat July 25, 2026 (relocation pending). Official source ↗
  Last checked Thu, Oct 22, 2026.