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Wastewater Treatment Plant
3101 S Garner Lake Rd
Gillette, WY 82716
Phone (307) 686-5274
Fax (307) 686-7699
Send an E-mail

Compost sales will resume on Friday, May 1st

Stonepile Soil Amendments (Biosolids): Currently Unavailable - May be ready on June 1st.
Yard Waste Compost: Available May 1st

Compost is $20 per cubic yard for Stonepile Soil Amendments (Biosolids) Compost and Yard Waste Compost. 

Pickup times for Compost:   8:00 a.m. - 4:00 p.m. 7 days a week (Closed until further notice)

The wastewater treatment facility (WWTF) treats an average of 3.04 MGD (million gallons per day). We reclaim the solids which are composted and sold to the public as the Class A biosolids product known as Stonepile Soil Amendments

Click here to learn about how wastewater is treated to create the Stonepile Soil Amendments (Biosolids) Compost.

Processed Wood Chips

As part of the City's Yard Waste Program, the City of Gillette collects tree branches, brush and similar vegetation from the public at the City's Wastewater Treatment Compost Facility. Wastewater Staff grind and process the tree branches, brush and similar vegetation into wood chips for use within the City's biosolid compost material.

Currently, the City has a surplus of wood chips at the Compost Facility. Selling the surplus wood chips to the public will generate revenue to offset the costs associated with grinding and producing the processed wood chips.

The cost for the wood chips is $20 per cubic yard.