2021-03-02_REVISION - M1990057 ‎(5)‎

• Permit No: M1990057
• IBM Index Class Name: REVISION
• Doc Date: 3/2/2021
• Doc Name Note: Part 2 of 3
• Doc Name: Request For Amendment To Permit
• From: CJK Milling Company, LLC
• To: DRMS
• Type & Sequence: AM2
• Email Name: DMC
• Email Name: THM
• Media Type: D
• Archive: No

The Leadville Mill M 1990-057
EXHIBIT C-MILL PLAN
Page 4-8
orange-colored numbers in the Figure 4-1 flowsheet. Note the operational changes
when the trommel/crusher is not operating (green shading).
TABLE 4-5: PROCESS MATERIAL BALANCE
Stream Description Solids TPH Slurry
(/) Solids Water (gpm)
1 RoM Ore 96.0% 54.30 2.26
2 Trommel Oversize 95.0% 27.15 1.43 -
3 Trommel Fines 18.0% 27.15 123.01 537.57
4 Primary Crusher Product 95.0% 27.15 1.43 -
5 Feed to Screen 95.0% 33.94 1.79
6 Screen Oversize 95.0% 6.79 0.36
7 Secondar Crusher Product 95.0% 6.79 0.36
8 Feed to Storage Bin 95.0% 27.15 1.43
9 Fine Ore Bin discharge 95.0% 5.00 0.26
9 Fine Ore Bin discharge 95.0% 11.90 0.63 -
10 Ball Mill Feed 57.0% 18.58 13.84 83.98
10 Ball Mill Feed 95.0% 11.90 0.63 -
11 Ball Mill Discharge 57.0% 18.58 13.84 83.98
11 Ball Mill Discharge 65.0% 23.80 12.82 86.87
12 Cyclone Feed 25.6% 45.73 136.35 591.29
12 Cyclone Feed 40.0% 23.80 35.70 178.95
13 Cyclone Underflow 50.0% 13.58 13.58 74.82
13 Cyclone Underflow 65.0% 11.90 6.40 43.43
14 Cyclone Overflow 20.7% 32.15 123.27 530.80
14 Cyclone Overflow 28.8% 11.90 29.30 134.83
14 Thickener Feed 18.2% 20.00 89.72 396.00
15 Thickener O/F - - 73.36 238.54
16 Thickener U/F 40.0% 20.00 30.00 150.40
17 Leach Circuit Feed 40.0% 20.00 30.00 150.40
18 Leach Circuit Discharge 40.0% 20.00 30.00 150.40
19 Holding Tank 40.0% 20.00 30.00 150.40
20 Pressure Filter Cake 80.0% 20.00 5.00 20.00
21 Pregnant Solution - - 30.00 120.00
22 Feed to Merrill Crowe 30.00 120.00
23 Barren Solution - 30.00 120.00
24 Gold Precipitate - 0.12 trace -
25 Repulp Tank 50.0% 20.00 20.00 110.20
26 Drum Filter Feed 50.0% 20.00 20.00 110.20
27 Filtrate - - 13.33 53.32
28 Leach Residue 75.0% 20.00 6.67 55.20
29 Process Water - - 124.44 -
30 Process Water 5.75
31 Process Water to Sump 22.88 -
32 Wash Water 5.00 20.00
33 Barren Solution 15.00 -
Note: Non-shaded streams denote operation with crusher operation. Shaded streams replaced non-shaded streams
when crusher is not operating