A Study on the Water Quality for Efficient Management in the Water Tanks

Abstract

This study tried to investigate and analyze the actual state such as the regional, classified, and material characteristics of the water quality in order to research the several factors by which the filtrated water of the total 250 cases can be polluted in the water tank. The 215 points (86%) clean the water tanks twice a year regularly and J-city has done the best job of cleaning the water tanks. The fifty points (20%) of the total 250 investigation points examine the water quality of the water tanks every year, however, the 175 investigation points (70%) do not execute the inspection of water quality. In the case of the regional characteristics in the water quality, the 23 points (46%) in H-county, the 17 points (34%) in S-county, and the 16 points (32%) in G-city are incongruent in the standard, and the incongruity ratio of the water quality in J-city is the lowest. The result of the classified incongruity shows that total coliforms were found at the 61 investigation points, mesophilic bacteria were found at the 27 points, and turbidity was found at the 12 points. In the case of the material incongruity, concrete was found at the 63 investigation points as the most distinguished factor, and FRP (fiberglass reinforced plastic) at the 23 points, SMC (sheet molding compound) at the 12 points, and stainless steel was found at the 2 points.

An Evaluation of Microbial and Chemical Contamination Sources Related to the Deterioration of Tap Water Quality in the Household Water Supply System

“…Water supply systems consists of various components, including pipes, valves, and water reserve tanks. Park et al reported that the inspection of water quality in water tanks was not regularly performed for 175 out of 515 locations in Kyungnam, Korea, and the heterotrophic plate counts (HPCs) were over 100 colony-forming units (CFU) at 27 locations [10]. Lee et al concluded that water quality deterioration, lower water pressure, and leaks were observed among service pipes over the 10 years of their water supply period [11].…”