You measured the depth to ground water in two monirtoring wells, each at a diffe

Question

You measured the depth to ground water in two monirtoring wells, each at a different location, and seperated by a distance of 1289 meters. The ground surface elevation at well A is 300 meters above sea level, and at well B is 302 meters above sea level. The depth to water in well A is 7.5 meters. The depth to water in well B is 6.9 meters. The aquifer consists of homogeneous medium sand, with an effective porosity of 46%, and a hydraulic conductivity of 10-3 cm/s.

A. In which direction does ground water flow, from well A to B or vice versa?

B. At what rate is the ground water flowing?

C. How many days will it take one parcel of ground water to travel 1 meter?

Explanation / Answer

A. GROUND WATER WILL FLOW FROM B TO A

B. FLOWRATE = (HYDRAULIC CONDUCTIVITY)*(dH/dL)

= 103(2/1289)

   = 0.159813cm/s

C. ONE PARCEL OF GROUND WATER WILL TRAVEL 1 METER IN: (100*1)/0.159813

= 625.7313 sec

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.