A 400 mm diameter test well penetrates 27 m below the static water table. After 24 hours of pumping at 75 liters/sec, the water level in an observation well at a distance of 100 m from the test well is lowered 0.35 m. The other observation well at a distance of 40 m from the test well has a drawdown of 0.97 m. Compute the transmissibility of the aquifer in m?/day.

Question 4.

Could you help me answer the following question? Thank you A fully penetrating pumping well extracts groundwater from a confined aquifer with a pumping rate of 750 m3/day. The hydraulic conductivity of the aquifer is 10 m/day and the saturated thickness is 50 m. The drawdown of the aquifer from this pumping well is insignificant at a distance of 1000 m from the pumping well. At what distance from the pumping well is the drawdown 10 cm? Assume the hydraulic gradient is negligible in the local area. Transmissivity T = 1746.76 gal/min/ft   Hydraulic conductivity = 11.645 gal/min/ft2 Storativity = 0.809  The drawdown on Jenny’s Well by the end of August. =0.6902 ft. Observation well situated is 69.7 ft away from the pumping well (which is pumping at the rate of 305 gal/min). The aquifer is confined, and the depth has been measured from well logs and is 150 ft. The data for time (t) and drawdown (s) is given below: t (min) s (ft) 0.072 0.003 0.105 0.006 0.155 0.012…

A 300-mm diameter test well penetrates 27 m below the Water is pumped at for 24 hrs. The observation wells 35 m and 95 m from the test well were of static liters per 69 two water table. a rate second water levels at lowered by 1.10 m and 0.50 m, respectively. a. Compute the flow rate in MLD (megaliters per day). b. Compute aquifer. c. Compute the transmissivity of the coefficient of permeability of the the aquifer. Use the q In T = 2π (h2-h1) formula