Publication: Bacteriological analysis of drinking water at four selected areas of dagupan city
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Date
2000-03
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Don Mariano Marcos Memorial State Univeristy - South La Union Campus
Abstract
This study was conducted at Don Mariano Marcos Memorial State
University, Southern La Union Campus, Agoo, La Union from November 1, 1999
to January 8, 2000. This experimental study used the standard plate count,
selective cultivation, biochemical test to determine the bacteria present in
drinking water. The samples of drinking water were collected from four selected
areas of Dagupan City and sold purified water. Each treatment was replicated
twice.
The treatment were the following:
T1 = Arellano Bani (North)
T2 = M.H. Del Pilar St. (South)
T3 = A.B. Fernandez West
T4 = A.B. Fernandez East
Specifically, the study sought to answer the following problems: a.) How
do bacterial count Nawasa differ from those of deep well and purified water? b.)
Is there a significant different on the number of bacteria present during the
months of collection. c.) How do bacteria present in Nawasa differ from bacteria
present in deep well and purified water as to there morphological, cultural and
physiological characteristics. d.) What are the bacteria inhabiting each source of
drinking water.
The following null hypothesis were tested: a.) There is no significant
difference between the number of bacterial count in Nawasa, deep well and
purified water. b.) There is no significant difference on the number of bacteria
present during the months of collection. c.) There is no significant difference on
the morphological, cultural, and physiological characteristics of bacteria present
in Nawasa, deep well and purified water. d.) There is no significant difference on
the bacteria present in the Nawasa, deep well and purified water.
The bacteria present were identified based morphological, cultural, and
physiological characteristics.
Two..Way analysis of Variance (ANOVA) set at 0.01 level of significance to
determine the variations among treatment means while the Duncan's Multiple
Range Test was also used to determine where lies the significance among the
treatments.
Findings of the study were: The bacterial counts in drinking water from
four selected areas of Oagupan City were highest in November but lowest
December. The bacteria present in purified water regardless of the month of
collection were identified as Escherichia coli and Enterobacter.
In T1, the bacteria present Escherichia coli which is mostly abundant and
small number of Enterobacter.
In T2, the bacteria present were identified as Escherchia coli and
Enterobacter. In T3, the bacteria present were identified as Escherichia coli and
Enterobacter. In T4, the bacteria present were identified as Escherichia coli and
Enterobacter.
The bacteria identified in the samples of drinking water were Escherichia
coli and Enterobacter.
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Citation
Navarro, J. B. & Borja R. G. (2000) Bacteriological analysis of drinking water at four selected areas of dagupan city [Unpublished Undergraduate thesis]. Don Mariano Marcos Memorial State Univeristy - South La Union Campus, Agoo, La Union.