📋 Tender Overview
Sunass monitored the Sedapar treatment plants to guarantee the quality of drinking water.The National Superintendency of Sanitation Services (Sunass) reported that the significant increase in manganese in the raw water that entered the La Tomilla and Miguel de la Cuba Ibarra Drinking Water Treatment Plant forced Sedapar S. A. to intensify the treatment of water for human consumption.
According to the monitoring carried out by the regulatory body, the alteration in water quality occurred as a consequence of the operations carried out by the Autonomous Authority of Majes (Autodema) in the dam system. These maneuvers generated a sediment drag that increased the concentration of manganese in the water resource.
Sedapar S. A. applied operational actions to guarantee water service. The dosage of chlorine in the purification process was increased to mitigate the load of manganese that entered the plants, whose oxidation and removal process generated greater perceptible coloration in the water.
Sunass also explained that the levels of free residual chlorine used by the company are controlled and within the maximum permissible limits established by current health regulations. It was also verified that Sedapar S. A. has sufficient supplies for adequate water treatment, which includes activated carbon if it is necessary to reinforce the purification process, according to the field visit carried out by Sunass.
During the monitoring carried out by the regulatory entity, Sedapar S. A. recorded manganese concentrations with a value of 0.33 mg/l in the R9 reservoir and 0.21 mg/l in the R9A reservoir. These parameters continue to be subject to technical monitoring by Sunass while the conditions of the raw water entering the treatment system are stabilized, reported the head of the decentralized Sunass office in Arequipa.
