The contaminant concentration has been detected to be 200 mg/L for the area of a site represented below.  The groundwater contours are spaced at intervals of about 50 m.  The average thickness of the aquifer is 5 m and the hydraulic conductivity is 1x10-2 cm/s.  For each meter of length (unit length) as measured parallel to the river, what is the contaminant loading rate (i.e., C x Q) in kg/year?

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Groundwater Flow

The term groundwater refers to the water which is found beneath the earth's surface. Pores present in the soil and rocks with fractures make a passage for rainwater to enter the earth's surface and deposit as groundwater. The flow nature and direction of groundwater under the earth's surface directly impacts the strength and compressibility of the soil, which reflects its ability to support structural loads.