How It Works


The Materials Recovery Facility (MRF) assists Placer County jurisdictions with achieving state mandated waste diversion goals while achieving an economy of scale for material diversion and providing uniformity in waste diversion and recycling programs.

The MRF was designed and is operated to: 1) recover recyclable materials from mixed waste; 2) process green and wood wastes for composting or biomass; 3) receive and process source-separated recyclables, and 4) provide for receipt and recycling/disposal of HHW.

Talking Trash

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Aerosol cans containing liquid are considered a hazardous waste by the State of CA and can’t go in your bin. You can drop them off at the WPWMA’s HHW facility for free every day.

The Authority

Another name for the WPWMA.


CA Department of Resources, Recycling & Recovery – regulatory agency that administers and provides oversight for California’s state-managed waste handling and recycling programs.


Department of Toxic Substances Control – regulatory agency overseeing the generation, treatment, storage, transportation and disposal of hazardous waste.


Electronic Waste – televisions, computer monitors, computers, printers, cell phones, telephones, radios. State law prohibits disposal of these items in your bin. Check out free recycling options in your city.


The folks who pick up your garbage – City of Roseville, City of Lincoln and Recology Auburn Placer.


Household Hazardous Waste (HHW) – common household items including paint, motor oil and universal wastes. State law prohibits disposal of these items in your bin. Learn more about HHWs.


Materials Recovery Facility – where the majority of Placer County’s waste is sorted to recover recyclables. The MRF is owned and operated by the WPWMA.


One Big Bin – a collaborative effort of the WPWMA, cities of Auburn, Colfax, Lincoln, Rocklin & Roseville, Town of Loomis, and their waste haulers to spread the word about the ease of recycling in Placer County.


CA paint stewardship program providing free drop-off locations for postconsumer architectural paint. Find a paint drop-off location near you.


Regional Recycling Group – members from the WPWMA, cities of Auburn, Colfax, Lincoln, Rocklin & Roseville, Town of Loomis, and waste haulers pooling resources to educate folks in western Placer County about the benefits of One Big Bin.


Home-generated needles, syringes and lancets – State law prohibits sharps from being discarded in home or business waste or recycling containers. Placer County residents can drop off sharps for free every day at the WPWMA’s HHW facility.


A brand of garbage can and word loosely used to describe wheeled garbage cans/bins.


Universal Waste – primarily consumer products containing mercury, lead, cadmium and other substances that are hazardous to human health and the environment, such as batteries, fluorescent tubes, and many electronic devices. State law prohibits disposal of these items in your bin. Check out your city’s disposal options to learn pick up and drop off options.


Western Placer Waste Management Authority – a joint powers authority comprised of Placer County and the cities of Lincoln, Rocklin and Roseville. The WPWMA owns and operates the MRF & WRSL.


Western Regional Sanitary Landfill – the only active landfill in Placer County. The WRSL is owned and operated by the WPWMA.