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Assignment #4
Name: __________________A#_______________
1) For map 2 of the Lake Hot Stuff area of the province the following well chemistry has been
determined:
Well Site
U ppm
Radon B/l
A
.004
500
B
.003
628
C
.002
899
D
.019
3246
E
.030
4444
F
.151
5798
G
.198
7729
H
.224
10000
I
.025
2000
J
.003
4587
K
.009
3789
L
.008
2290
M
.007
1100
N
.018
2659
O
.019
2987
a) Plot the numbers beside each well site on the map for example
.
N .018 U
2659 Rn
b) The limit for uranium in water has been determined to be 0.019 ppm. Draw an all inclusive
polygon (or contour) around all of the well sites greater than the acceptable limit. (Use pencil or
coloured pen).
c) The limit of radon that is considered safe is 2000 bacquerels per litre. Draw an all inclusive
polygon (contour) around all of the well sites greater than the acceptable limit. (Use a different
colour pencil or coloured pen than used for uranium).
d) Which of the polygons (contours) is larger? Why might this be the case? Do the polygons
correspond to any particular rock type or types?
e) There are numerous building lots available in this area. Where would you build your house
and explain the reasons for your choice.