Evaluation of water quality In the quebrada El Salado through the application of the water quality index (Ica - Nsf) (parroquia El Valle, cantón Cuenca, Ecuador).

The physical, chemical, and microbiological parameters of the water in the El Salado stream were determined, taking into account nine parameters: turbidity, dissolved oxygen, BOD5, pH, nitrates, phosphates, fecal coliforms, total solids, and temperature in order to compare with the regulations, after which the Water Quality Index of the National Sanitation Foundation (ICA - NSF) of the United States was calculated; For this, four monitoring campaigns were carried out between the months of February, March, April and May 2019; at four sampling points. The results obtained show that the water quality is within the range of Bad to Medium