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Monitoring of Coliforms and chlorine residual in water distribution network of Rawalpindi, Pakistan

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Abstract

The present study was undertaken to examine the drinking water quality of Rawal Treatment Plant, Rawalpindi and its distribution network by collecting samples from eight different locations. The aim was to determine potential relationship between the presence of microorganisms and chlorine residual in the distribution network. Quantification of chlorine residual, turbidity, standard plate count (SPC), fecal and total coliforms by Most Probable Number (MPN) was performed. Three different forms of chlorine were measured at each sampling station such as free chlorine, residual chlorine, chloramines and total chlorine residual. A critical evaluation of data presented indicated that pH generally ranged from 7.02–7.30; turbidity varied from 0.34–2.79 NTU; conductivity fluctuated from 359–374 μS/cm; and TDS values were found to be ranging between 180–187 mg/l. Station # 7 was found to be most contaminated. The value of total chlorine was found to be 0.86 to1.7 mg/l at Station # 3 and 6, respectively. Highest standard plate count was 62 CFU/ml at Station # 7. Total coliforms were less than 1.1 MPN/100 ml at almost most of the stations except at Station # 3 where it was found to be greater than 23.0 MPN /100 ml. Overall aim of this study is to create awareness about contamination of drinking water in the water distribution networks and to make recommendations to provincial agencies such as EPA, CDA and WASA that regular monitoring should be carried out to ensure that the chlorine residual is available at consumer end.

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References

  • APHA (1998). Standard Methods for the Examination of Water and Wastewater. Washington: American Public Health Association.

    Google Scholar 

  • Collins, C. H., & Lyne, P. M. (1985). Microbiological methods. London: Butterworth & Co Publishers Ltd.

  • Din, M., Hussain, F. H., Naila, A., Shabbir, H., Rana, N. N., Anwar, K., Saeed, D., & Zumra, S. (1997). The quality assessment of drinking water supplied to Islamabad, environmental pollution. In Proceedings of Third National Symposium on Modern Trends in Contemporary Chemistry, Islamabad, Pakistan.

  • Dizer, H., & Hagendorf, U. (2003). Microbial contamination as an indicator of sewer leakage. Water Research, 25, 791–796.

    Article  Google Scholar 

  • Fass, S., Dincher, M. L., Reasoner, J., Gatel, D., & Block, J. C. (1996). Fate of Escherichia coli experimentally injected in a drinking water distribution pilot system. Journal of Water Resources, 30, 2215–2221.

    CAS  Google Scholar 

  • Goshko, M. S., Minnigh, H. A., Pipes, W. O., & Christian, R. R. (1983). Relationships between standard plate counts and other parameters in water distribution systems. Journal of the American Water Works Association, 75, 568.

    Google Scholar 

  • Haas, C. N., Meyer, M. A., & Paller, M. S. (1983). Microbial alterations in water distribution systems and their relationship to physical-chemical characteristics. Journal of the American Water Works Association, 75, 475.

    CAS  Google Scholar 

  • Hoff, J.C. (1978). The relationship of turbidity to disinfection of potable water. Evaluation of the microbiology standards for drinking water. EPA-570/9-78-OOC. U.S. (p. 103). Washington, DC: Environmental Protection Agency.

  • Jolley, R. L. (Eds.) (1980). Water chlorination: Environmental impact and health effects. Michigan: Ann Arbor Science.

  • Kelin, H., Yuang, H. F., Hong, L., & Robert, W. E. (2005). Spatial variability of shallow ground water level, electrical conductivity and nitrate concentration and risk assessment of nitrate contamination in North China plain. Environment International, 31, 896–903.

    Article  Google Scholar 

  • Kitazawa, H. (2006). Keeping residual chlorine and decreasing unpleasant odour caused by disinfection of tap water. Water Supply, 6, 193–199.

    CAS  Google Scholar 

  • LeChevallier, M. W., Cawthon, C. D., & Lee, R. G. (1988). Factors promoting survival of bacteria in chlorinated water supplies. Applied and Environmental Microbiology, 54, 649–654.

    CAS  Google Scholar 

  • LeChevallier, M. W., Evans, T. M., & Seidler, R. J. (1981). Effect of turbidity on chlorination efficiency and bacterial persistence in drinking water. Applied and Environmental Microbiology, 42, 159.

    CAS  Google Scholar 

  • LeChevallier, M. W., Norton, W. D., & Lee, R. G. (1991). Giardia and Cryptosporidium in filtered drinking water supplies. Applied and Environmental Microbiology, 2617–2621.

  • Lienyao, L., Chungsying, L., & Shyang-Lai, K. (2004). Spatial diversity of chlorine residual in a drinking water distribution system. Journal of Environmental Engineering, 130, 1263–1268.

    Article  Google Scholar 

  • Malick, F. K., Akhtar, W., & Seema, J. (1998). Drinking water quality in the City of Karachi. In 24th WEDC conference, sanitation and water for all, Islamabad, Pakistan.

  • Montgomery, J. M. (1985). Water treatment principles and design. New York: John Wiley & Sons.

    Google Scholar 

  • Munavalli, G. R., & Mohan Kumar, M. S. (2003).Water quality parameter estimation in steady state distribution system. Journal of Water Resources Planning and Management, 129, 124–134.

    Article  Google Scholar 

  • Ndambuki, J. M. (2006). Water quality variation within a distribution system: a case study of Eldoret Municipality, Kenya. In Paper presented at the IASTED conference on environmentally sound technology in water resources management.

  • Olivieri, V. P., Snead, M. C., Kruse, C. W., & Kawata, K. (1986). Stability and effectiveness of chlorine disinfectants in water distribution systems. Environmental Health Perspectives, 69, 15–29.

    Google Scholar 

  • Otson, R., Williams, D. T., & Bothwell, P. D. (1981). Comparison of trihalomethane levels and other water quality parameters for three treatment plants on the Ottawa River. Environmental Science & Technology, 15, 1075.

    Article  CAS  Google Scholar 

  • Pak-SECA (2006). Pakistan; Strategic Country Environmental Assessment Report: Rising to the Challenges. Islamabad, Pakistan: South Asia Environment and Social Development Unit. (May).

  • PCRWR (2001). National water quality monitoring program. In World water day workshop, Islamabad (March).

  • Ram, N. M., & Malley, J. P. (1984). Chlorine residual monitoring in the presence of N-organic compounds. Journal of the American Water Works Association, 76, 74–81.

    CAS  Google Scholar 

  • Raza, H., Husaain, M. & Alibai, K. (1998). Seasonal investigation of drinking water quality. In 24th WEDC international conference, Pakistan. Retrieved from http://wedc.lboro.ac.uk/conferences/pdfs/24/Raza.pdf.

  • Reilly, J. K., & Kippin, J. S. (1983). Relationship of bacterial counts with turbidity and free chlorine in two distribution systems. Journal of the American Water Works Association, 75, 309.

    CAS  Google Scholar 

  • Rook, J. J. (1977). Chlorination reactions of fulvic acids in natural waters. Environmental Science & Technology, 11, 478.

    Article  CAS  Google Scholar 

  • Sawyer, C. N., & McCarty, P. L. (1967). Residual chlorine and chlorine demand. In Chemistry for sanitary engineers. Toronto: McGraw-Hill.

  • Snead, M. C., Olivieri, V. P., Kruse, C. W., & Kawata, K. (1980). Benefits of maintaining a chlorine residual in water supply systems. EPA-600/2-80-010. U.S. Washington, DC: Environmental Protection Agency. (June).

    Google Scholar 

  • Tahir, M. A. (1989). Pollution problems in the water supply systems of Islamabad and Rawalpindi. Islamabad: Pakistan Council of Research in Water Resources.

    Google Scholar 

  • Tahir, M. A. (1998). Survey of drinking water quality in the rural areas of Rawalpindi District. Islamabad, Pakistan: Pakistan Council of Research in Water Resources.

    Google Scholar 

  • US-EPA (1974). Methods for the chemical analysis of water and wastes. US-EPA-625/6-74-003. Washington DC: Office of Technology Transfer.

    Google Scholar 

  • US-EPA (1989). Guidance manual for compliance with filtration and disinfection requirements for public water systems using surface water sources (Section 5.3.2). Washington, DC: US-EPA.

  • WB-CWRAS (2005).The World Bank ‘Pakistan country water resources assistance strategy water economy: Running dry’. Washington DC: WB-CWRAS. (November).

  • WHO (1993). Guidelines for drinking water quality. Geneva Switzerland: Office of Publications, WHO.

    Google Scholar 

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Authors and Affiliations

  1. Institute of Environmental Science and Engineering, National University of Sciences and Technology, Rawalpindi, Pakistan

    Shaukat Farooq, Imran Hashmi, Ishtiaq A. Qazi, Sara Qaiser & Sajida Rasheed

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  1. Shaukat Farooq
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  2. Imran Hashmi
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  3. Ishtiaq A. Qazi
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  4. Sara Qaiser
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  5. Sajida Rasheed
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Correspondence to Shaukat Farooq.

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Farooq, S., Hashmi, I., Qazi, I.A. et al. Monitoring of Coliforms and chlorine residual in water distribution network of Rawalpindi, Pakistan. Environ Monit Assess 140, 339–347 (2008). https://doi.org/10.1007/s10661-007-9872-2

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  • DOI: https://doi.org/10.1007/s10661-007-9872-2

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