Correlations between Cleaning Frequency of Reservoir and Water Tower and Parameters of Water Quality

This study was investigated on sampling and analyzing water quality in water reservoir & water tower installed in two kind of residential buildings and school facilities. Data of water quality was collected for correlation analysis with frequency of sanitization of water reservoir through questioning managers of building about the inspection charts recorded on equipment for water reservoir. Statistical software packages (SPSS) were applied to the data of two groups (cleaning frequency and water quality) for regression analysis to determine the optimal cleaning frequency of sanitization. The correlation coefficient (R) in this paper represented the degree of correlation, with values of R ranging from +1 to -1.After investigating three categories of drinking water users; this study found that the frequency of sanitization of water reservoir significantly influenced the water quality of drinking water. A higher frequency of sanitization (more than four times per 1 year) implied a higher quality of drinking water. Results indicated that sanitizing water reservoir & water tower should at least twice annually for achieving the aim of safety of drinking water.




References:
[1] Jie-Chung Lou et al., "Year 95, guidance plan for investigation of water
quality in collective housing facilities in Kaohsiung City", Kaohsiung
City Government Environmental Protection Agency research project,
Kaohsiung Environmental Protection Agency project no. 48, (2006).
[2] Jie-Chung Lou et al., "Year 96, guidance plan for investigation of water
quality in collective housing facilities in Kaohsiung City" Kaohsiung City
Government Environmental Protection Agency research project,
Kaohsiung Environmental Protection Agency project no. 49, (2007).
[3] Jie-Chung Lou et al., "Year 97, guidance plan for investigation of water
quality in collective housing facilities in Kaohsiung City", Kaohsiung
City Government Environmental Protection Agency research project,
Kaohsiung Environmental Protection Agency project no. 57 (2008).
[4] Executive Yuan, Environmental Protection Agency, Standards for the
Quality of Drinking Water, 1998.
[5] Sowers MR. Jannausch M. Wood C. Pope Sk. Lachance LL. Peterson B.
Prevalence of Renal Stones In A Population-Based Study with Dietary
Calcium, Oxalate, and Medication Exposures. American Journal of
Epidemiology Vol.147, pp914-20, 1998.
[6] Yang, C.Y., J.F. Chiu, H.F. Chiu, and T.N. Wang, Relationship between
Water Hardness and Coronary Mortality in Taiwan, J. Toxicol. Environ.
And Health, Vol.49, pp1-9, 1996.
[7] Lacey, R.F. and Shaper, A.G. ,Change in Water Hardness and
Cardiovascular Death Rates, Int. J. Epidemiology ,Vol.13, No.1, pp18-24,
1984.
[8] Rook, J. J., "Formation of Haloforms During Chlorination of Natural
Waters," Water Treatment Exam., 23 (5), pp.234-242 (1974).
[9] Cantor, H., and E. A. Boyse. 1977. Lymphocytes as models for the study
of mammalian cellular differentiation. Immunological Rev. 33:105.
[10] Keegan TE, Simmons JE, Pegram RA. NOAEL and LOAEL
determinations of acute Hepatotoxicity for chloroform and
bromodichloromethane delivered in an aqueous vehicle to F344 rats. J
Toxicol Environ Health A., 55, pp.65-75 (1998).
[11] Boorman GA. Drinking water disinfection byproducts: review and
approach to toxicity evaluation. Environ Health Perspect., 1(2), pp.07-17
(1999).
[12] Shin D, Chung Y, Choi Y, Kim J, Park Y, Kum H. Assessment of
disinfection by-products in drinking water in Korea. J Expo Anal Environ
Epidemiol., 9(19), pp.2-9 (1999).
[13] Priyanka T, Amita B, Sukarma T. Evaluation of Water Quality: Physico -
Chemical Characteristics of Ganga River at Kanpur by using Correlation
Study. Trivedi, et al, Evaluation of Water Quality., 1(6), pp.91-94 (2009).