Water quality assessment of tabular wells in the groundwater in the city of Paracuru-Ceará, Brazil

Abstract

The question of the lack of basic sanitation and sanitation is one of the biggest challenges for developing countries and develop-ment. In the current Brazilian conjuncture, the cities have population growth higher than the pace of construction of infrastructure, which causes a deficiency and lack of access to sanitation services. The city of Paracuru but that can be with its quality compro-mised by a lack of efficient sewage network that meets the community as a whole. The study aims to characterize the situation of underground water resource in the city of Paracuru-CE, by means of chemical analyzes and physical and microbiological characteristics of 20 artesian wells, before and after the summer from 07 July to 07 August 2019. Among the results found in this study, we observed in microbiological analysis, 35% of the samples of groundwater of Paracuru-CE, are contaminated by heterotrophic bacteria, 90% with faecal coliform and 15% with Escherichia coli. In the physicochemical analysis is 15% pH outside the limits of potability, according to Ministry of Health Ordinance No. 2914/2011, 20% with iron, 15% with turbidity and 15% with apparent color, proving the absence or deficiency of adequate sanitation in most parts of the city.