The placement of daily cover is one of the most important facets in landfill operations. Federal and state regulations require municipal solid waste landfills to cover their solid waste daily with at least six (6) inches of soil. Many landfill sites have been utilizing Alternate Daily Covers (ADC) due to the value of air space that soil consumes and the cost of placing six or more inches of soil daily.
What are Alternative Daily Covers? ADCs are cover other than earthen material placed on the surface of the “working” face at the end of each operating day to control blowing litter, fires, odors and vectors. ADCs are widely used in Kentucky, however approval must be granted prior to their utilization. There are numerous types of ADCs, with their own advantages and disadvantages.
Tarpaulins are one of the most commonly utilized ADCs in the country due to them being one of the most cost-effective, safe, time-saving and environmentally friendly options. However, even tarps have shortcomings as they are difficult to install in windy conditions. It also goes without question that if the edges are not covered with soil, then insects can enter and leave with ease. In addition, insects can maneuver easily under the tarpaulin because of the head space available. Therefore, the improper use of ADCs can lead to environmental violations, like odor complaints.
There are several ADC recordkeeping requirements, such as requiring permitted landfills to track the daily type, tonnage and origin of ADC materials used. For further information about alternate daily covers and their regulatory requirements, contact Ken Melton, Division of Waste Management, at 502-564-6716.