Alaska's growing tourism industry has fuelled the construction of facilities to serve the lodging and entertainment needs of seasonal visitors to the far north of the USA. As the size of these tourist facilities expands from small lodges and bed and breakfast type businesses to larger full service resorts, more sophisticated wastewater treatment facilities have become necessary. One such lodge, on the Kenai Peninsula in Alaska, recently turned to lonics MBR technology to meet its environmental and wastewater needs. The custom-designed submerged system uses hollow fibre membranes with a 0.4 micron pore size.