Name ____________________________ Group ________

Two wells located at the distance of 170 m in the direction of the groundwater flow are intersected impermeable clays overlying a water-bearing sands. The thickness of water-bearing sands is 8.3 m. Using the data in the table, plot a schematic hydrogeological cross section, fill in the gaps in the table and determine the unity flow discharge (discharge of the flow of 1 m wide). Point out the direction of groundwater flow on the hydrogeological cross section.

Results of measurements	№ of well	№ of well	№ of well	
	1	2	1	2	1	2	
	Variants	
	1	2	3	
Absolute elevation of, m:		
well head	66,2	64,9	27,1	27,8	53,6	56,2	
bottom of upper aquitard	53,8	51,5					
top of underlying aquitard			7,0	10,6	33,7	31,0	
piezometric level (standing head-water level)	64,7	62,3	26,4	28,5			
Head (Н) above the bottom of the upper aquitard, m					12,2	9,4	
Filtration coefficient kф, m/day	21,4	21,4	15,6	15,6	23,1	23,1	

Schematic hydrogeological cross section:

Calculations: