Evaluación de la calidad del agua subterránea utilizando métodos de índice y análisis estadístico multivariado: cuenca del río Pavas (Colombia)

The Pavas river valley basin is an agricultural and livestock region, located in the municipality of La Cumbre, Valle del Cauca department Colombia. inhabitants are supplied by piped water, which times water deficit may present limitations terms quantity quality, this has led to a transition towards exploitation use groundwater resources. This study used physicochemical microbiological analysis samples taken within research area during two different hydrometeorological periods (rainy dry seasons). Statistical methods (analysis normality, homoscedasticity, difference between populations) multivariate (principal component hierarchical cluster analysis) were applied interpret hydrogeochemistry. Additionally, quality was evaluated using indexes for domestic human consumption irrigation. No evidence effect on hydrogeochemical behavior identified. existence natural factors (weathering dissolution rocks) anthropic (interaction with discharges or origin) that alter hydrogeochemistry established. Lastly, according indices, analyzed placed category «unviable direct consumption» humans «without low restrictions»