LAKASABrowsing by Author "Roca, Carlito M."

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Bacteriological analysis of groundwater in selected areas of DMMMSU Agoo, La Union
(Don Mariano Marcos Memorial State University - South La Union Campus, 2005-03) Diaz, Milbert A.; Roca, Carlito M.
This study determined the bacteriological analysis of groundwater in selected areas of DMMMSU, Agoo, La Union. It was conducted in April, May, July and August 2004. Most Probable Number (MPN) of total coliform and fecal coliform present in 100 mL water sample were obtained using the standard laboratory procedures at the BFAR- NIFTDC Microbiological Laboratory, Dagupan City. Results were compared with the Standard established by the National Standards for Drinking Water of the Philippines (NSDW) and World Health Organization. The Analysis of Variance (ANOVA) set at 0.05 and 0.01 levels of significance was used to determine any significant difference. Results indicate that all four sources of water in the College Canteen, Natural Sciences Department, Boys' Dorm, and Girls' Dorm during the months of April, May, July and August 2004 did not pass the standard of zero total coliform and fecal coliform MPN per 100 mL of water based on the standard set by the NSDW and WHO. Water samples from the four sources during the four months of the study contain comparable number of pathogenic total and fecal coliform bacteria.