Group opposes Colfax firm's plan to hike toxic burning A Colfax-area company wants to more than triple the amount of hazardous waste disposed of by open burning. Check out this story on thetowntalk.com: http://www.thetowntalk.com/story/news/local/2015/12/18/group-opposes-colfax-firms-plan-hike-toxic-burning/77426174/ Clean Harbors Colfax LLC, located about five miles from Colfax in Grant Parish, uses open burning to dispose of hazardous waste.