Updates for Treated Wood Waste Disposal

Recology Mariposa received a variance from the Department of Toxic Substances Control (DTSC) to transport treated wood waste (TWW).  With this variance, Recology Mariposa can transport TWW from residential customers or from commercial customers with a TWW generator variance.

To apply for a treated wood waste variance, visit DTSC’s website here.  For more information about TWW, click here.

Treated wood is any wood that has been treated with a chemical preservative to protect the wood against attacks from insects, microorganisms, or fungi. It is typically used in outdoor applications such as fences, decks, stairways, etc.