Water quality assessment of selected groundwater sites in Purok 4 and 5 in Barangay Mayondon, Los Baños, Laguna

Date

4-2008

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Nieva T. Librojo-Basilio

Abstract

SARIO, JOHNEMIL ALDAY, College of Arts and Sciences, University of the Philippines Los Banos. March 2008. WATER QUALITY ASSESSMENT OF SELECTED GROUNDWATER SITES IN PUROK 4 AND 5 IN BARANGAY MAYONDON, LOS BANOS, LAGUNA.

Adviser: Dr. Nieva T. Librojo-Basilio

Assessment of the ground water quality at selected areas in Purok 4 and 5, Brgy. Mayondon Los Banos Laguna was conducted from November 2007 to March 2008. The water quality parameters that were analyzed were pH, temperature, turbidity, total solids, chloride concentration, total hardness. iron, lead, and nitrate-nitrogen concentration, and total coliform.

The range of the values obtained for the different parameters are as follows: pH, 6.90 - 7.2; temperature, 27.1 - 28.3 °C; turbidity, 0 - 1 NTU; total solids, 390 - 770 mg/L; chloride concentration, 19.12 - 59.20 mg/L; total hardness, 212.49 - 380.25 ppm CaCO3; iron concentration, non-detectable - 0.679 mg/L; lead concentration, non-detectable - 0.0022 mg/L; and nitrate-nitrogen concentration, 0.015 - 0.0298 mg/L. All the values obtained for the different parameters, except for the total coliform on stations 3,5,6,7 and 8, were able to conform with the standards set by the Department of Environment and Natural Resources (A0#34, 1990) and Philippine National Standard for Drinking Water (DOH AO 18-A).

All the parameters except for turbidity and total conform were subjected to statistical analysis. The Multivariate Analysis of Variance (MANOVA) test and the General Linear Models (GLM) procedure were performed to verify whether there is a significant interaction between the variables sampling time and sampling station, for the parameters pH, temperature, chloride concentration, iron concentration, lead concentration, and nitrate-nitrogen concentration. Further analysis using Duncan's Multiple Range Test (DMRT) showed that the obtained mean values for each month for the parameters of pH, temperature, total solids, chloride concentration, and total hardness were not significantly different from each other. Moreover, the obtained mean values for each month for the parameters of iron concentration, lead concentration, and nitrate-nitrogen concentration were found to be significantly different from each other. Analysis of Variance also revealed that variation of pH, total solids, chloride, total hardness, iron, lead, and nitrate-nitrogen concentration between sampling stations is significantly different; Lind variation of temperature, iron, lead, and nitrate-nitrogen concentration between sampling times is also significantly different.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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