The decentralization of industry to the interior of the State of São Paulo - Brazil is being realized without the support of environmental planning which should assess the land capability to that economic activity. Although environmental concern, few municipalities have cartographic documentation about their environmental issues which make difficult the elaboration of Master Plans and Water Basin Committees actions. The research in course aims to analyze comparatively different degrees of environmental impacts due to industrialization in Palmital and Platina municipalities, situated in the Paranapanema River water basin. Deforestation, natural animal life extinction, agricultural and cattle raising impacts, use of toxicant product and its soil contamination and solid waste disposal are environmental problems already detected, those are aggravated by industrial activity. The industrial activities are located mainly in the urban centers and their sewage disposal is made in the surroundings water streams. Thus, the basins related to these streams were identified to proceed analysis and study the two urban sites. The elaboration of environmental diagnosis and prognosis by thematic maps, bibliographic and cartographic documentation analysis, field surveys, industrial spatial organization studies, in preferred water basins, provide useful technical and scientific material to support Municipalities in their Environmental Management duty.