September: Hazardous Waste Collection Event Scheduled for April 19 at Fairgrounds

September: Hazardous Waste Collection Event Scheduled for April 19 at Fairgrounds

Boulder County residents can safely dispose of household hazardous waste including paint, solvents, pesticides, batteries, and electronics at a free collection event on Saturday, April 19 at the Boulder County Fairgrounds. No appointment is necessary. Commercial waste is not accepted.

The Walden Ponds open space property encompasses 2,240 acres and features 5 miles of multi-use trails. Seasonal wildlife closures may apply from December 15 through July 15 to protect nesting raptors and elk calving areas.

The Sheriff’s Office processed over 7,353 applications last year, with an average processing time of 16 business days. Staff are available at the Louisville office Monday through Friday from 8:00 AM to 4:30 PM.

Background

Wildfire risk mapping conducted by Wildfire Partners shows that 30% of properties in the Louisville area are within the wildland-urban interface. Free home assessments are available through the Wildfire Partners program, with rebates of up to $2,500 for mitigation improvements.

Data from the 2026 Boulder County Community Survey shows that 51% of respondents rated this service as “important” or “very important.” The survey, conducted every two years, received 5,792 responses from residents across the county.

Next Steps

Volunteers contributed over 13,706 hours to this program last year. The Sheriff’s Office coordinates with 10 nonprofit partner organizations throughout Boulder County to deliver services.

Environmental review of the project area near SH-119 Diagonal Highway found 11 sensitive species and 1 wetland areas requiring mitigation. The Sheriff’s Office worked with Colorado Parks and Wildlife to develop a habitat conservation plan.