Assessment and monitoring of the UPLB drinking water system

Date

10-2002

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Maxima E. Flavier

Abstract

PECHO, CECILE ZAMORA, College of Arts and Sciences. University of the Philippines Los Banos. October 2002 ASSESSMENT AND MONITORING OF THE UPLB DRINKING WATER SYSTEM.

Adviser: Dr. Maxima E. Flavier

Assessment and monitoring of the groundwater quality from one deep well source (DW5), one pump house (PH4) and 7 distribution sites were conducted twice a month from June to September 2002. The water quality parameters analyzed were pH, DO, turbidity, conductivity, temperature, TDS, TSS, total hardness, chloride content, nitrate-nitrogen, and residual chlorine. The total coliform bacteria and total microbial plate count analysis was performed simultaneously 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, 6.97; DO, 5.81 mg/L; turbidity, 0 NTU: conductivity, 0.55 ,is.'/cm; temperature, 34.2°C; TDS, 612.5 mg/L: TSS, 325.8 mg/L, total hardness, 302.7 mg/L; chloride content, 30.97 mg/L; nitrate-nitrogen (by UV Spectrophotometric method), 1.71 mg/L; nitrate-nitrogen (by rapid test kit method), 1.87 mg/L; residual chlorine, 0.3 mg/L: total coliform bacteria, 10 per 100 mL; and total microbial plate count, 90.5 per 100 mL. All values for the different parameters tested conformed with the maximum allowable limits set by the Department of Environment and Natural Resources (DENR), Philippine National Standards for Drinking Water (PNSDW), and World Health Organization (WHO) except for pH, TDS, TSS, residual chlorine, total coliform and total plate count on certain sampling sites.

Analysis of Variance (ANOVA) was done in order to determine the effect of time of collection and sampling station in all parameters except for turbidity, total coliform and total plate count. Results showed that pH, TDS, TSS, and chloride content, varied significantly with respect to the time of collection at 1% level. However, variations in the total hardness, nitrate-nitrogen, and residual chlorine with respect to sampling station and sampling time were significant at 1% level.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2002 C4 P43

Document Type

Thesis

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