City Solid Waste Manager Steve Hunt and Utilities Director Dave Sorrell met with journalists Thursday afternoon to answer questions about the âpay as you throwâ solid waste disposal model that will be implemented Feb.1. As part of the model, which was approved by the Columbia City Council at its Sept. 21 meeting, the city will only collect garbage set at the curbside if it is in black bags stamped with the city logo. Each household is allotted 104 bags annually, which comes out to about two bags per week. The city expects customers to receive vouchers for the bags by Jan. 18. Sorrell said this new system would make waste disposal more like other utilities such as electricity and water. Rather than paying a flat rate no matter how much trash a household generates, this model means âthe more you use, the more you pay.â