Thanks to Darienne McNamara with the City of Superior Environmental Services who is the regulatory compliance specialist for the landfill for giving the landfill tours to 18 of us on Friday and Saturday. Duluth, Superior and surrounding communities garbage is trucked to this Moccasin Mike landfill that opened 35 years. The landfill is projected to last about 8 more years.
The Superior Landfill accepts brush year round, along with grass clippings and leaves which are separated and used for compost. There is also a public drop off for used oil, absorbents, and filters. A Reuse Center is onsite for unwanted items that may still be usable to others, such as furniture, bicycles, etc. As a reminder, the following items may not be disposed of at the landfill – recyclables, demolition materials, and hazardous waste including electronic waste. Some items such as tires, e-waste, and mattresses may be dropped off for a nominal fee. There is a portion of the landfill where the public goes to dump their items after being weighed on the scale.
Waste sludge from New Page paper mill
Sludge from the City of Superior wastewater Treatment Plant
Other pipes are for collecting the liquid that accumulates in the landfill that is part stormwater and part a mix of the liquids in the landfill. It is called leachate. The leachate is directed to a lift station which then has it go on to the Superior Wastewater Treatment Plant. Each year about 7 million gallons of leachate from this landfill goes to the WWTP.
Liner and Cap : A landfill is more than a hole in the ground or a mound of garbage. Regulatory permitting requires a proper liner be constructed for a landfill. It includes layers, like lasagna, of materials to keep the ground water separate and feet of impermeable clay is used as well as thick plastic. When a cell of a landfill is filled - it is then capped - again with substrate, clay, plastic, more medium and then with grass. It required that the grass be mowed for the next 40 years to not have trees growing on site as their roots could interfere with the liner.
Parting tips: How can we improve waste diversion? Keep unwanted mattress dry. When a mattress is wet it can no longer be recycled through the program at Good Will due to mold. Please recycle plastics, glass, metals. Use less - use reusable bags, reusable container,
WLSSD - Household hazardous waste facility, major compost site for yard scraps and food wast
Douglas Co. Recycling Coordinator, Mary Klun
ReStore Habitat for Humanity store - 1621 Broadway. 722-3875
There also are textile and shoe recycling boxes through town. They are green and white.
Don't forget about the medicine drop box at the Superior Police Dept.
Thanks to those who attended the tour. Superior, Duluth, rural Douglas County and even a Twin Cities person attended.