In [1]:

```
#initialisation of variables
w1 = 1000. #ft
w2 = 2000. #ft
r = 700. #gpm
d = 10. #days
q = 2 #ft
u = 1.87*((3.4*10**-5)/(3.2*10**4))*(d**6/d) #ft
W = 7.94 #ft
p = 114.6*(7*10**2)*W/(3.2*10**4) #ft
U = 1.87*((3.4*10**-5)/(3.2*10**4))*(4*d**6/d) #ft
Wu = 6.55 #ft
P = 114.6*(7*10**2)*Wu/(3.2*10**4) #ft
R = 54 #ft
#CALCULATIONS
W1 = R+p+P #ft
D = R+q*p #ft
#RESULTS
print 'the expected drawndown the first well is pumped at a rate = %.0f ft'%(W1)
print 'the drawdown in each well all the three are pupped at a rate = %.0f ft'%(D)
```

In [2]:

```
#initialisation of variables
g = 20 #ft
k = 10**-1 #cm/sec
g1 = 3.28*10**-3 #fps
w = 2 #ft
w1 = 30 #ft
#CALCULATIONS
Q = (1./2)*(g1)*((g**2)-(2**2))/(w1) #cfs
#RESULTS
print 'the flow into a foot of gallery = %.1e cfs'%(Q)
```