@incollection{,
	
					
					
					2F2616D45CBBA62FE2E9AA918C0780EE
				,
	author={{Dr. I.EUwidia} and {University of Benin, Benin City, Nigeria.}},
	journal={{Global Journal of Researches in Engineering}},
	journal={{GJRE}}2249-45960975-586110.34257/gjre,
	address={Cambridge, United States},
	publisher={Global Journals Organisation}1213136
}

@book{b0,
	
	
		,
	title={{Environmental Science and Engineeing}}
		,
	author={{
			JGHenry
		} and {
			GWHeinke
		}}
		
		
			,
	year={1989}
			,
	publisher={Prentice Hall}
			414
			,
	address={Eaglewood Cliffs, N. J}
		
	

}

@book{b1,
	
	
		,
	title={{Septic Systems, EPA. United States Environmental Protection Agency}}
		
			,
	year={2011}
		
	

}

@book{b2,
	
	
		,
	title={{Environmental Chemistry and Toxicology}}
		,
	author={{
			CMAdemoroti
		}}
		
			,
	year={1996a}
			,
	publisher={Foludex Press Ltd}
			
		
	
	,
	note={Ibadan pp}

}

@incollection{b3,
	
	
		,
	title={{Characterisation of Domestic Sewage from an Estate in Warri}}
		,
	author={{
			IEUwidia
		} and {
			CMAdemoroti
		}}
		
	
	
		,
	journal={{Nigeria. Int. J. Chem}}
		
			3
			3
			,
	year={2011}
		
	

}

@incollection{b4,
	
	
		,
	title={{Understanding Our Environment: An Introduction to Environmental Chemistry and Pollution}}
		,
	author={{
			HFish
		}}
	
	
		,
	booktitle={{Freshwaters in}}
				,
	editor={
			RMHarrison
		}
		Cambridge, UK.
		
			,
	publisher={Royal Society of Chemistry}
			,
	year={1994}
			
		
	

}

@book{b5,
	
	
		,
	title={{}}
		,
	author={{
			GTchnobanoglous
		} and {
			FLBurton
		} and {
			HDStensel
		}}
		
		
		
			,
	year={2003}
			,
	publisher={Metcalf and Eddy Inc. McGraw-Hill Book Co}
			134
		
		
			Wastewater Engineering (Treatment, Disposal, Reuse
		
	
	,
	note={4th Edition}

}

@book{b6,
	
	
		,
	title={{Environmental Sampling and Analysis}}
		,
	author={{
			MCsuros
		}}
		
			,
	year={1997}
			,
	publisher={CRC Press LLC}
			
			,
	address={New York}
		
	

}

@book{b7,
	
	
		,
	title={{Practical Environmental Analysis. The Royal Society of Chemistry}}
		,
	author={{
			RMiroslav
		} and {
			BNVladimir
		}}
		
		
			,
	year={1999}
			163
			,
	address={Cambridge, Uk}
		
	

}

@incollection{b8,
	
	
		,
	title={{Water Quality and Health. 2 nd Edition}}
		,
	author={{
			RFPackham
		}}
	
	
		,
	journal={{Royal Society of Chemistry}}
		
			,
	year={1990}
		
	

}

@book{b9,
	
	
		,
	title={{}}
		,
	author={{
			AWard
		} and {
			WElliot
		} and {
			Hydrology
		}}
		
		
		
			,
	year={1995}
			,
	publisher={CRC Press}
			65
			,
	address={Lewis; New York}
		
	

}

@book{b10,
	
	
		,
	title={{Biogeochemistry of small Catchments, scope 51}}
		,
	author={{
			RMoldan
		} and {
			JCherry
		}}
		
		
			,
	year={2007. 1994}
			,
	publisher={Wiley and Sons}
			
			,
	address={New York}
		
	

}

@book{b11,
	
	
		,
	title={{Prediction of Five-Day Biochemical Oxygen Demand (BOD 5 ) Values from More Readily Determinable Pollution Characteristics}}
		,
	author={{
			IEUwidia
		}}
		
			,
	year={2011}
			42
			,
	address={Benin City}
		
		
			University of Benin
		
	
	,
	note={PhD Thesis}

}

@book{b12,
	
	
		,
	title={{Standard Methods for Water and Effluents Analysis}}
		,
	author={{
			CM AAdemoroti
		}}
		
			,
	year={1996b}
			,
	publisher={Foludex Press Ltd. Ibadan}
			
		
	

}

@book{b13,
	
	
		,
	title={{Standard Methods for the Examination of Water and Wastewater 19th Edition}}
		
			,
	year={1995}
			,
	publisher={American Public Health Association}
			5210A
			,
	address={New York}
		
	

}

@incollection{b14,
	
	
		,
	title={{Methods of sampling and Test for Water and Wastewater 1 st Revision of 15 30025 ICS No. 13.060}}
	
	
		,
	booktitle={{Bureau of Indian Standards (BIS)}}
				
			,
	year={2005}
			50
			
		
	

}

@incollection{b15,
	
	
		,
	title={{}}
		,
	author={{
			Tofallis
		}}
	
	
		,
	journal={{Least Square Percentage Regression J. Modern Appl. Statistical Methods}}
		
			7
			
			,
	year={2009}
		
	

}

@book{b16,
	
	
		,
	title={{Applied Multiple Regression / Correlation Analysis for the Behavioral Sciences}}
		,
	author={{
			JCohen
		} and {
			PCohen
		} and {
			SGWest
		} and {
			LSAiken
		}}
		
		
		
		
			,
	year={2003}
			,
	publisher={Lawrence Erlbaum Associates}
			,
	address={Hillside, NJ}
		
	
	,
	note={2nd Edition}

}

@incollection{b17,
	
	
		,
	title={{Statistics and Probability for Civil and Environmental Engineers}}
		,
	author={{
			TNathabandv
		} and {
			RRenzo
		}}
		
	
	
		,
	booktitle={{Surgapore pp}}
				
			,
	publisher={McGraw-Hill Book Co}
			,
	year={1998}
			
		
	

}

@incollection{b18,
	
	
		,
	title={{}}
		
	
	
		,
	journal={{MathBits.com)}}
		
			,
	year={2000}
		
	

}

@book{b19,
	
	
		,
	title={{Basic Educational Measurement and Evaluation}}
		,
	author={{
			JNOdili
		} and {
			HNAjuar
		}}
		
		
			,
	year={1995}
			,
	publisher={COEWA Publishers}
			
			,
	address={Warri, Nigeria}
		
	
	,
	note={2nd Edition}

}