Improper disposal of oil-stained material caused the trash enclosure to ignite. Swift response from Boulder Fire-Rescue ensured minimal spread to nearby buildings.
After completing the fire investigation, Boulder Fire-Rescue has determined the cause accidental for a fire last month at 885 Arapahoe Ave.
At approximately 2:20 a.m. on September 21, 2022, Boulder Fire-Rescue units were dispatched to a fire on Arapahoe Avenue. Upon arrival, firefighters reported a trash enclosure on fire, with flames also in a tree next to the enclosure and beginning to spread to a wall of the Highland City Club building. Firefighters acted quickly and effectively to extinguish the fire in the enclosure and prevent any further fire spread. As additional engines arrived, firefighters ensured that the fire was out and that there was no risk of the fire reigniting. Sina Simantob, founder of the Highland City Club, stated “I am grateful for the quick response from the Boulder Fire-Rescue Department and appreciate the skill and professionalism they demonstrated both during and after the fire.”
The fire appears to have started due to the unintentional and improper disposal of oil-based stain covered plastic. This plastic was placed into a compost trash container in the enclosure, where it is believed that the materials then ignited spontaneously. The plastic sheeting had recently been used to cover windows from painting work being done at a multi-family building on the property.
Boulder Fire-Rescue reminds the community that oil-based chemicals do have the ability to spontaneously heat and ignite when stored or disposed of improperly. When using oil-based chemicals such as wood stain, please ensure that all stain covered materials are laid separately and flat, then allowed to completely dry out before storage or disposal. Additionally, oil-stained materials can be placed in a container with water and then sealed to prevent risk of ignition.