Determination of a performance index of a sanitary sewage service. Case study: City of Campina Grande, Paraíba.

ABSTRACT The contamination of water resources by wastewater is a major concern of water protection. The use of tools to assist the water management process is of utmost importance to improve the sanitation service. This study aims to determine a performance index of a sanitary sewage service for the city of Campina Grande (IDSES-CG), Paraíba. A number of indicators on sewer service quality, operation and maintenance were selected based on existing methodologies, and taking into account criteria such as coherence with regional characteristics, data accessibility and reliability of the source. The selected indicators were calculated, standardized and weighted so that the IDSES-CG could be determined. Based on a nominal scale, the situation involving the sewage service in the city was evaluated and then classified as fair. This study also discussed some of the quality indicators in order to identify the most problematic areas regarding the sewage system.