EVALUACIÓN ECONÓMICA DE LA PLANTA PURIFICADORA DE AGUA EN INFIERNILLO, MUNICIPIO DE ARTEAGA, MICHOACÁN

The informal market of purified water in Mexico grew in 2004 to 50% in some areas. Currently,the sale of bottled water is equivalent to 26.03 million l/year, 18.22 million in water jug and7.81 million in individual water bottles. However, the commonwealth of Infiernillo,municipality of Arteaga, Michoacán, the market niche demand is unsatisfied; coupled to 2,600habitants of the Colonies Pitireras and Morelos consume untreated water, that contain salts andthese are extracted from the dam Infiernillo. The main objective of this research is to evaluatefinancially a water purification plant to meet quality and quantity of product demand in thestudy area. For this purpose, were evaluated the assessed the economic feasibility, theeconomic costs of production and the monetary benefits of commercialization. Financialindicators Net Present Value (NPV), Internal Rate of Return (IRR), Benefit Cost Ratio (B/C)and Net Benefit-Investment (K/N) are determined using a Microsoft Excel spreadsheet, theprogram analysis projects (ANPRO) and the Statistical Analysis Sistem package SAS.The economic information was obtained from an water purifying plant pre-feasibility studycarried out in this community. The variables considered were costs of staff (509,400 pesos),raw and annually supplies (187,635 pesos), costs of fixed investment (309,543 pesos), deferred(35,087 pesos), annual costs (108,692 pesos) and revenue (3´077, 280 pesos). The results weregoing NPV = 6´745, 459.75 pesos; TIR = 44.15%; R B/C = 2.16 pesos and N/K = 21.73. Toperform the analysis of sensitivity of total costs and total income, the project stand a decrease inthe first of an increase of 20%, while in the second case it stand a decrease of 20%. However,the project shows viability.