Waterloo Biofilter designs, manufactures, and maintains advanced onsite wastewater treatment technologies that allow for environmentally responsible development of rural areas. Our technology emphasis is on high quality treatment, low electricity usage, and system robustness. We provide a variety of innovative decentralized sewage treatment solutions for residential (individual homes & clustered or communal systems), commercial (golf course, restaurant, resort, etc.), light industrial and small municipal applications. All Waterloo Biofilter treatment units utilize our patented high-efficiency foam filter medium to support and sustain biological populations that degrade contaminants found in wastewater. Waterloo Biofilter is also a leader in onsite nutrient removal technologies, with a variety of passive and robust options for high levels of nitrogen removal, as well as phosphorus removal and capture suitable for low flows.