Flores, Katrina Evelia, Jugadora, Ma. Josette, Tibubos, Eloisa Mae (February 1999)
Philippine Science High School Western Visayas Campus – Department of Science and Technology (DOST-PSHS WVC), Brgy. Bito-on, Jaro, Iloilo City 5000, Philippines
ABSTRACT
This study was conducted with the primary objective of determining the water quality of certain beaches in Villa with nine parameters. The following determinants were tested on-site: temperature, pH, dissolved oxygen, salinity, conductivity. While filterable solids, dissolved solids, total solids, and total coliform bacterial determination where tested at the PSHS-WVC Science Research Laboratory.
Results showed that the water temperature ranged from 29.10 degrees Celsius to 30.70 degrees Celsius, pH level ranged from 7.22 units to 7.52 units, D.0 ranged from 5.69 ppm to 19.49 ppm, salinity ranged from 31.3 ppt to 49.80 ppt, and conductivity ranged from 49.2 ohms to 54.8 ohms.
For the total coliform bacterial determination, three samples where gathered from the three beaches (Seaside, Villa Beach, and Tatoy’s Manokan) of Villa. The method testing the total coliform was Multiple Tube Fermentation Technique. Lactose Broth Media was utilized for the presumptive test and Brilliant Green Lactose Bile for the confirmative test.
Sampling Station 1 had 3,901.15 colonies/100-ml which immediately qualified it to be most contaminated. Sampling Station 3 on the other hand, had 248.49 colonies/100-ml making it the least contaminated sampling station.
The researchers conclude that the water quality of the beaches in Villa is not safe to be used by the public for bathing, swimming, and skin diving.