It should be noted that there were no extreme contamination events during the sampling period mainly associated with OD levels lower than 2 mg/L or turbidity higher than the limit value established for water treatment in the treatment plants of the city of Cali which are supplied from Cauca River, i.e. 3000 UNT. Such high turbidity events eventually take place in the surroundings of Puerto Mallarino water uptake and affect the continuity of water supply to nearly 80% of the population of the city of Cali due to purification delay Univalle and EMCALI, 2009.
Se resalta que durante los muestreos no se presentaron eventos extremos de contaminación asociados principalmente a niveles de OD inferiores a 2 mg/L o turbiedad superior al valor límite establecido para tratabilidad del agua por las plantas de la ciudad de Cali abastecidas por el río Cauca 3.000 UNT, que se presentan eventualmente a la altura de la Bocatoma de Puerto Mallarino afectando la continuidad del servicio de suministro de agua a cerca del 80% de la población de la ciudad de Cali debido a la suspensión en los procesos de potabilización Univalle y EMCALI, 2009.