Abstract

MORALES-DURAN, Nami; TORRE-GONZALEZ, Anaí de la; GARCIA-SANCHEZ, Víctor  and  CHAVEZ, Carlos. Study of the bacteriological quality and physiochemical parameters of water from the Irrigation District 023. Tecnol. cienc. agua [online]. 2018, vol.9, n.1, pp.53-67.  Epub Nov 24, 2020. ISSN 2007-2422.  https://doi.org/10.24850/j-tyca-2018-01-04.

San Juan del Río, Querétaro (Mexico), is one of the most important industrial regions of the state, which has led to a great demographic development and the increase in the demand of resources to meet the needs of the growing population, especially in water resources, such as the Irrigation District 023 (DR 023), in which 11 048 ha are destined to the production of crops of agricultural importance. However, with population growth of recent years, urban areas have developed near the canal network, which carries the wastewater discharge to the distribution network. In this work the concentrations of fecal coliform bacteria in the water of 53 points of the DR 023 in April 2015, and the physicochemical conditions were examined. Also, fecal coliform obtained levels were compared with those permitted by the Federal Law of Rights and Applicable Disposition on Matters of National Waters 2015 and NOM-001-Semarnat-1996. We found that most of the points on which sample was obtained, showed high levels of fecal coliform and physicochemical conditions not appropriate for use in irrigation. These results indicate the need for constant monitoring of water bodies for agriculture in the region, as fecal indicator organisms indicate the potential presence of pathogens in the water.

Keywords : Water contamination; fecal coliform; bacteriological quality.

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