Abdulbaki, U. D., Ahmad, H. I. and Maina, M. M. (2014). Quality Assessment of Groundwater around Open dumpsites in Kano Metropolis, North-Western Nigeria. IOSR Journal of Environmental Science, Toxicology and Food Technology, 8 (9), 139-145.
Adewoyin, O. A., Hassan, A. T. and Aladesida, A. A. (2013). The impacts of auto-mechanic workshops on soil and groundwater in Ibadan metropolis. African Journal of Environmental Science and Technology, 7(9), 891- 898.
Alabi, Mutiu A. Idowu, G., Oyefuga, Olalekan H., Sunday, Rita M., Olowookere, Temitope., Osanaiye, Folake B. and Odiaka, Stella. (2013). Assessing the Ground Water Quality in Sagamu Town, Ogun State, South West Nigeria. IOSR Journal Of Environmental Science, Toxicology And Food Technology, 6 (3), 57-63.
Awajiogak, A. U. (2013). Evaluating Groundwater Contamination Processes and Developing Framework For Qualitative Management in Parts of Nigeria. International Journal of Innovative Research in Science, Engineering and Technology , 2 (8), 3890-3900.
Bain, R., Cronk, R., Wright, J., Yang, H., Slaymaker, T., & Bartram, J. (2014). Fecal Contamination of Drinking-Water in Low- and Middle-Income Countries: A Systematic Review and Meta-Analysis. PLoS Medicine
(5), e1001644. https://doi.org/10.1371/journal.pmed.1001644
Clesceri, L.S., Greenberg, A.E., and A.D. Eaton. (1998). Standard methods for the examination of water and wastewater. Washington DC, USA: American Public Health Association (APHA).
FGN. (2007). Legal Notice on Publication of the 2006 Census Report. Federal Government of Nigeria official Gazette , 4 (94), 1-8.
Hashim, M. A., Mukhopadhyaya, S., Sahu, J. N. & Sengupta, B. (2011). Remediation technologies for heavy metal contaminated groundwater. Journal of Environmental Management, 92(10), 2355–2388.
Kanyerere, T., Levy, J., Xu, Y., & Saka, J. (2012). Assessment of microbial contamination of groundwater in upper Limphasa River catchment , located in a rural area of northern Malawi. Water SA, 38(4), 581–596.
Lokhande, R. S., Singare, P. U., & Pimple, D. S. (2011). Pollution in Water of Kasardi River Flowing along Taloja Industrial Area of Mumbai , India. World Environment, 1(1), 6–13. https://doi.org/DOI: 10. 5923/j.env.20110101.02
Macler, Bruce A. and Merkle, Jon C. (2000). Current knowledge on groundwater microbial pathogens and their control. Hydrogeology Journal , 8 (1), 29-40
Manahan, S. E. (2000). Environmental Chemistry (7th ed.). Boca Raton London New York Washington D.C.: Lewis Publishers.
Momodu, M.A. and Anyakora, C.A. (2010). Heavy Metal Contamination of Ground Water: The Surulere Case Study. Research Journal Environmental and Earth Sciences , 2(1), 39-43.
Nigerian Standard for Drinking Water Quality (NSDWQ), (2007). Nigerian drinking water quality. Nigerian industrial standard NIS standard organization of Nigeria, pp:30
Ocheri, M.I, L.A.Odoma & Umar.N.D. (2014). Groundwater Quality in Nigerian Urban Areas: A Review. Global Journal of Science Frontier Research: H , 14 (3), 35-45.
Palamuleni, L. and Akoth, M. (2015). Physico-Chemical and Microbial Analysis of Selected BoreholeWater in Mahikeng, South Africa. International Journal of Environmental Research and Public Health , 12, 8619-8630.
Pimentel, D., Berger, B., Filiberto, D., Newton, M., Wolfe, B., Karabinakis, E., Clark, S., Poon, E., Abbett, E., and Nandagopal, S. (2004). Water Resources: Agricultural and Environmental Issues. BioScience, 54(10), 909–918.
Prajapati, U. B. and Dwived, A. K. (2016). Free Oxygen Budget of a Polluted Tropical River. Hydrology Current Research, 7(2), 5–8.
Ramaiah, G. V., Krishnaiah, S., & Naik, M. (2014). Leachate Characterization and Assessment of Ground Water Pollution near MSW Dumpsite of Mavallipura , Bangalore, 4(1), 267–271.
Sarfraz, M. D., Sultana, N., Jamil, M. D. & Ashraf, R. (2016). Investigation of Portable Groundwater Quality and Health Risk Assessment of Selected Trace Metals in Flood Affected Areas of District Rajanpur, Pakistan. Journal of Environmental Analytical Chemistry, 3(2), 1000183. https://doi.org/10.4172/2380-2391.1000183
Selvam, S., Antony Ravindran, A., Venkatramanan, S., & Singaraja, C. (2017). Assessment of heavy metal and bacterial pollution in coastal aquifers from SIPCOT industrial zones, Gulf of Mannar, South Coast of Tamil Nadu, India. Applied Water Science, 7(2), 897–913. https://doi.org/10.1007/s13201-015-0301-3
Valenzuela, M., Lagos, B., Claret, M., Mondaca, M. A., Pérez, C., & Parra, O. (2009). Fecal Contamination of Groundwater in a Small Rural Dryland Watershed in Central Chile. Chilean Journal of Agricultural Research, 69(2), 235–243. https://doi.org/10.4067/S0718-58392009000200013
WHO. (2011). Guidelines for Drinking Water Quality, 4th edn. Geneva: World Health Organization.
WHO. (2007). Water for Pharmaceutical Use. In. Quality Assurance of Pharmaceuticals: A Compendium of Guidelines and Related Materials. Genever: World Health Organization.