On Site Sanitation is a certified woman owned business offering porta john regular toilets, ADA toilets, flush units, luxury mobile toilets mounted units, portable sinks and much more. On Site Sanitation is the market leader providing portable restroom facilities for commercial, industrial, residential, and special event customers. We are family owned and operated and take pride in the level of service we provide. On Site Sanitation is one of the few portable restroom providers large enough to provide any size event or construction project with clean, sanitary portable restroom facilities. Whether you just need a portable sink for your cookout, porta potty rental for your family reunion or any other kind of special event restroom, On Site has the portable sanitation products you need.