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E-3
Resources and reserves of the 10th sylvite ore zone (short tons in millions).
Area, Type of Lease, and Scenario
Combined Area
In-place resource (> 10% Kp & actual thickness)
BLM Lease Grade reserve (> 10% K,Q & 4 ft mining height)
Minable reserve (> 12.25% Kp & 4.5 ft mining height)
WIPP Area
In-place resource (> 10% K 2 0 & actual thickness)
BLM Lease Grade reserve (> 10% K 2 0 & 4 ft mining height)
Minable reserve (> 12.25 % Kp & 4.5 ft mining height)
Additional Area ( - 1 mile around WIPP)
In-place resource (> 10% K,O & actual thickness)
BLM Lease Grade reserve (;" 10% Kp & 4 ft mining height)
Minable reserve (> 12.25 % K 2 0 at 4.5 ft mining height)
Tons
168.2
157.3
107.8
53.7
52.3
30.6
114.5
105.0
77.2
Avg. %
K,Q
14.61
14.64
15.33
14.26
13.99
15.00
14.77
14.96
15.46
In-place resources for other potash ore zones (short tons in millions).
Ore zone Combined Area WIPP Area Additional Area
Tons %KP Tons %KP Tons % K 2 0
2nd (Iangbeinite >4% K 2 O) 4.2 6.32 2.3 6.34 1.9 6.30
3rd (equivalent langbeinite 16.2 5.93 8.9 6.20 7.3 5.60
>4% K 2 O)
5th (Iangbeinite >4% K 2 O) 17.8 6.81 4.9 5.74 12.9 7.22
8th (Sylvite > 10% K,Q) 18.0 14.29 1.8 15.71 16.2 14.13
. 9th (Sylvite > 10% K 2 O) 1.8 12.37 0.5 11.70 1.3 12.63
11th (Sylvite> 10% K,Q)
none
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