Assessment and monitoring of the quality of the UPLB drinking water system

Date

3-2003

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Maxima E. Flavier

Abstract

PRADO, SHERYL MARQUEZ, College of Arts and Sciences, University of the Philippines Los Banos. March 2003. ASSESSMENT AND MONITORING OF THE UPLB DRINKING WATER SYSTEM.

Adviser: Dr. Maxima E. Flavier

Assessment and monitoring of the groundwater quality from two pump houses (PH#5 and PH#8) and five distribution sites were conducted twice a month from July to September 2002. Analyses for iron and lead were conducted once a month from July to September from twenty four sampling stations including one deep well (DW#5), four pump houses (PH#2, 4, 5 and 8) and nineteen distribution sites. The water quality parameters analyzed were pH, DO, conductivity, temperature, TDS, TSS, total hardness, chloride content, nitrate-nitrogen, residual chlorine, iron and lead content. Simultaneously, the coliform bacteria and total microbial count analysis was performed by the Diagnostic Laboratory of the College of Veterinary Medicine in line with the UPLB OHSSC program.

Analyses showed that the mean values obtained for the different parameters were as follows: pH, 7.53; DO, 7.50 mg/L; conductivity, 0.56 µS-'/cm; temperature, 34.16 SC; TDS, 461.20 mg/L; TSS, 117.96 mg/L; total hardness, 325.32 mg/L; chloride content, 28.49 mg/L; nitrate-nitrogen, 0.46 mg/L; and residual chlorine, 0.28 mg/L. The iron and lead content were 1.00 ppm and 0.30 ppm, respectively. In general, all values for the different parameters tested conformed with the maximum allowable limit set by the Department of Environment and Natural Resources (DENR), Philippine National Standards for Drinking Water (PNSDW), and World Health Organization (WHO) except for some isolated cases.

Analysis of Variance (ANOVA) was done in order to determine the effect of time of collection and sampling station in all parameters. Results showed that pH, DO, TSS, nitrate-nitrogen, residual chlorine and lead varied significantly with respect to time of collection at 1% level. Variations in the DO, conductivity, total hardness, and chloride with respect to sampling station were significant at 1% level.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2003 C4 P73

Document Type

Thesis

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