Microbial quality of well water from rural and urban households in Karnataka, India: a cross-sectional study.

Objective: The objective of this study was to evaluate the microbial quality of the well water used as a drinking source in urban and rural households.

Methods: A total of 80 household well water samples were analyzed by the multiple fermentation tube method to determine the presumptive coliform count/most probable number of coliforms, and the isolates were identified using standard procedures, followed by susceptibility testing.

Results: Fecal indicator organisms, including Escherichia coli and Enterococcus spp.