Colorado Portables Share: Waste Systems - Removal Colorado Portables Visit Website 4022 Mulligan Street Longmont, Colorado 80504 (720) 799-3261 About Map About We started in 2022. We are one of the last remaining porta potty suppliers to homebuilders in the region. We offer the highest cleaning standards at an affordable price. What's Nearby? Distance: 5 10 15 20 25 50 mi.