Detailed sampling, gaging and laboratory analyses determined current waste loads from the Aroostook-Prestile Basin's potato processing industry. Studies indicated that significant reductions in load could be accomplished by in-plant conservation. Biological treatment of the residual wastes, however, was found necessary. Preliminary designs were prepared for numerous treatment and loading operations, including joint industry-municipal plants and regionally inter-connected systems. A transport-treatment channel system covering some eleven miles was shown to be technically feasible. Cost analyses of all viable options and alternatives were prepared, including capital and operating costs. Annual revenue requirements for each system were projected, including evaluation of current State and Federal grant-in-aid programs. Joint municipal-industrial treatment facilities proved the most economic course of action. (Modified author abstract)