Theis (1935) solution for a well in an infinite non-leaky aquifer. Insert your observed t vs. h_0 - h data, then enter and adjust model data in the yellow row to achieve a match. All data must be in one consistent set of time and length units (e.g. day, meter). The parameters are defined as follows: Q = well discharge, r-radius from pumping well to observation location, T=transmissivity, S=storativity. Theis, C.V. 1935. Q [m^3/min] 0.5 r [m] 22 T [m^2/min] 0.006 S [ ] 0.0001 Observed t-t_0 [min] h_0-h [m] 1.0E-01 1.0E+00 1.0E+01 t (minutes) 1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06 1.0E+02 1.0E+01 1.0E+00 1.0E-01 1.0E-02 h_0-h (m) Observed -Theis 4. A well fully penetrating a confined aquifer was continuously pumped at a constant rate of 0.1667 m³/s for a period of 16 hours and 40 min. The drawdowns in the table below were observed in a fully penetrating observation well, 50 m from the pumping well. Compute T and S by using: a. The Theis method of log-log matching (you can use the attached spreadsheet entitled "GroundwaterScience Pumping Tests.xlsx". b. The Jacob-Cooper method of semi-log plotting (you can manage this on your own in a spreadsheet). Drawdown data t (min) ho-h (m) 5 0.0027 10 0.0305 20 0.1145 30 0.2062 50 0.3729 70 0.4548 100 0.6246 150 0.7686 200 0.8623 250 0.9451 300 1.0842 400 1.1189 500 1.3144 600 1.3299 700 1.3687 1000 1.57

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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Answer both questions a and b in detail and show all work

Theis (1935) solution for a well in an infinite non-leaky aquifer.
Insert your observed t vs. h_0 - h data, then enter and adjust model data in the yellow row to achieve a match. All data must be in one consistent set of time and length units (e.g.
day, meter). The parameters are defined as follows: Q = well discharge, r-radius from pumping well to observation location, T=transmissivity, S=storativity.
Theis, C.V. 1935.
Q [m^3/min]
0.5
r [m]
22
T [m^2/min]
0.006
S [ ]
0.0001
Observed
t-t_0 [min] h_0-h [m]
1.0E-01
1.0E+00
1.0E+01
t (minutes)
1.0E+02
1.0E+03
1.0E+04
1.0E+05
1.0E+06
1.0E+02
1.0E+01
1.0E+00
1.0E-01
1.0E-02
h_0-h (m)
Observed
-Theis
Transcribed Image Text:Theis (1935) solution for a well in an infinite non-leaky aquifer. Insert your observed t vs. h_0 - h data, then enter and adjust model data in the yellow row to achieve a match. All data must be in one consistent set of time and length units (e.g. day, meter). The parameters are defined as follows: Q = well discharge, r-radius from pumping well to observation location, T=transmissivity, S=storativity. Theis, C.V. 1935. Q [m^3/min] 0.5 r [m] 22 T [m^2/min] 0.006 S [ ] 0.0001 Observed t-t_0 [min] h_0-h [m] 1.0E-01 1.0E+00 1.0E+01 t (minutes) 1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06 1.0E+02 1.0E+01 1.0E+00 1.0E-01 1.0E-02 h_0-h (m) Observed -Theis
4. A well fully penetrating a confined aquifer was continuously pumped at a constant rate of 0.1667
m³/s for a period of 16 hours and 40 min. The drawdowns in the table below were observed in a
fully penetrating observation well, 50 m from the pumping well. Compute T and S by using:
a. The Theis method of log-log matching (you can use the attached spreadsheet entitled
"GroundwaterScience Pumping Tests.xlsx".
b. The Jacob-Cooper method of semi-log plotting (you can manage this on your own in a
spreadsheet).
Drawdown data
t (min)
ho-h
(m)
5
0.0027
10
0.0305
20
0.1145
30
0.2062
50
0.3729
70
0.4548
100
0.6246
150
0.7686
200
0.8623
250
0.9451
300
1.0842
400
1.1189
500
1.3144
600
1.3299
700
1.3687
1000
1.57
Transcribed Image Text:4. A well fully penetrating a confined aquifer was continuously pumped at a constant rate of 0.1667 m³/s for a period of 16 hours and 40 min. The drawdowns in the table below were observed in a fully penetrating observation well, 50 m from the pumping well. Compute T and S by using: a. The Theis method of log-log matching (you can use the attached spreadsheet entitled "GroundwaterScience Pumping Tests.xlsx". b. The Jacob-Cooper method of semi-log plotting (you can manage this on your own in a spreadsheet). Drawdown data t (min) ho-h (m) 5 0.0027 10 0.0305 20 0.1145 30 0.2062 50 0.3729 70 0.4548 100 0.6246 150 0.7686 200 0.8623 250 0.9451 300 1.0842 400 1.1189 500 1.3144 600 1.3299 700 1.3687 1000 1.57
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