Denver residents accustomed to trash trucks coming to empty their black bins of refuse every week without ever having to see a bill for that service may want to revisit their budgets. The City Council voted 8-5 on Monday night to overhaul Denver’s solid waste collection program, making weekly recycling and composting free but setting up monthly fees for collections of trash headed to the landfill. The so-called “pay-as-you-throw” trash format will mean that starting next year residents of single-family homes and apartment buildings of seven or fewer units will pay between $9 and $21 per month for trash pickup depending on the size of their trash bins.