Ash Basin Excavation Details Table

Projected Excavation Details for Stations of Interest
Notes: 1 Typical Scenario assumes 500,000 tons/year excavated. This equates to approximately 50, 20 -ton trucks performing 2 truck turns per day while operating 12 hours per day, 6 days per week, for
45 weeks per year.
2 Aggressive Scenario assumes 1,000,000 tons/year excavated. This equates to approximately 100, 20 -ton trucks performing 2 truck turns per day while operating 12 hours per day, 6 days per
week, for 45 weeks per year.
3 One truck trip was assumed to be 25 miles, 1 truck turn would be 50 miles
Does not include landfill/dry ash except where located above an inactive ash basin and only at stations and units of interest
Approximate
Typical Scenario'
Aggressive ScenarioZ
Approximate Number of Truck
Approximate Number of Truck
Station
Basin
Volume
Approximate Project Duration
Approximate Project Duration
Trips over Project Duration
3
Miles over Project Duration
(Tons)
Years
Hours
Years
Hours
Active Ash Basin
10,373,000
20.7
67,217
10.4
33,609
560,142
28,007,100
Inactive Ash Basin
6,160,800
12.3
39,922
6.2
19,961
332,683
16,634,160
Allen
Ash Landfill and Subgrade
1,690,770
3.4
10,956
1.7
5,478
91,302
4,565,079
Allen Total
18,224,570
36.4
118,095
18.2
59,048
984,127
49,206,339
Active Ash Basin
12,059,000
24.1
78,142
12.1
39,071
651,186
32,559,300
Belews Creek
Belews Creek Total
12,059,000
24.1
78,142
12.1
39,071
651,186
32,559,300
Cell (Additional Primary)
2,839,200
5.7
18,398
2.8
9,199
153,317
7,665,840
Cell (Old Primary)
1,948,800
3.9
12,628
1.9
6,314
105,235
5,261,760
Buck
Cell (Secondary)
272,400
0.5
1,765
0.3
883
14,710
735,480
Buck Total
5,060,400
10.1
32,791
5.1
16,396
273,262
13,663,080
Active Ash Basin
5,107,600
10.2
33,097
5.1
16,549
275,810
13,790,520
Units 1-4 Inactive Ash Basin
423,600
0.8
2,745
0.4
1,372
22,874
1,143,720
Cliffside
Unit 5 Inactive Ash Basin
2,352,000
4.7
15,241
2.4
7,620
127,008
6,350,400
Cliffside Total
71883,200
15.8
51,083
7.9
25,542
425,693
21,284,640
Active Ash Basin
16,130,400
32.3
104,525
16.1
52,262
871,042
43,552,080
Marshall
Marshall Total
16,130,400
32.3
104,525
16.1
52,262
871,042
43,552,080
West Ash Pond
12,523,600
25.0
81,153
12.5
40,576
676,274
33,813,720
East Ash Pond
6,956,400
13.9
45,077
7.0
22,539
375,646
18,782,280
Unlined Monofill and Subgrade Fill
Roxboro
(above East Pond)
7,635,600
15.3
49,479
7.6
24,739
412,322
20,616,120
Lined Monofill
(above East Pond)
7,019,484
14.0
45,486
7.0
22,743
379,052
18,952,607
Roxboro Total
21,611,484
43.2
140,042
21.6
70,021
1,167,020
58,351,007
Notes: 1 Typical Scenario assumes 500,000 tons/year excavated. This equates to approximately 50, 20 -ton trucks performing 2 truck turns per day while operating 12 hours per day, 6 days per week, for
45 weeks per year.
2 Aggressive Scenario assumes 1,000,000 tons/year excavated. This equates to approximately 100, 20 -ton trucks performing 2 truck turns per day while operating 12 hours per day, 6 days per
week, for 45 weeks per year.
3 One truck trip was assumed to be 25 miles, 1 truck turn would be 50 miles
Does not include landfill/dry ash except where located above an inactive ash basin and only at stations and units of interest