The proposed SWOT-based analysis paper studies the treatment process of industrial wastewater. Based on the analysis results, the author presented an information field of "strengths and weaknesses" of the enterprise, showing the operational efficiency (or inefficiency) of the wastewater treatment facilities for various pollutions. It is shown that a system approach with the combination of quantitative and qualitative analyses of the object under examination should be used in decision making. The recommendations are given concerning the elimination of wastewater treatment defaults and leading to the environment safety of water bodies. The paper demonstrated a condition for discharging treated wastewater depending on the nature of its use and the content of the maximum permissible concentrations in treated wastewater.