PERMFILE60126

• Permit No: C1996084
• IBM Index Class Name: Permit File
• Doc Date: 9/10/2001
• Section_Exhibit Name: EXHIBIT 15 DITCH SUMMARY - PRIMERO FILL AREAS
• Media Type: D
• Archive: No

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LORENCITO CANYON SURFACE MINE - PRIMERO FILL AREAS -DITCH
SUMMARY ~~
FilUCoal
Seam Ditch-Storm/Design
Size Discharge
(cfs) Slope
(%)
Material Depth
(ft)' Width
(ft'
Sha e
Old P2-I Area West D-1; 10 35.96 1.2 Earthen 2.15 ]0.74 Tri
Old P2-1 Area East D-2; 10 51.59 1 Earthen 2.49 12.45 Tri
Old P2-I Area S-4 65.22 35 Ri ra 0.68 29.09 25' Tra
Fill2-I West S-I; 100 9.98 I Earthen 1.48 7.41 Tri
Fill 2-I West S-2; 100 12.24 9.4 Earthen 0.51 15.09 12' Tra
Fill 2-I West S-3; 100 19.09 17 Ri ra 0.49 10.96 8' Tra
Fill 2-I West S-4; 10 71.19 2.4 Ri ra 1.19 19.15 12' 'ira
Fill2-I West S-5; 100 5.87 33 Earthen 0.41 12.44 Tri
Fill2-1 West S-6; 10 77.07 1.2 Ri ra 1.26 17.56 10' Tra
Fill 2-I East S-I; 100 11.40 14.5 Earthen 0.50 12.51 10' Tra
Fill 2-1 East S-2; 100 13.65 9.4 Earthen 0.59 10.95 8' Tra
Fi112-1 East S-3; 100 20.81 26.9 Ri ra 0.42 12.51 10' Tra
Fill 2-I East S-4; 10 19.21 2.3 Earthen 1.59 7.97 Tri
Fill 2-I East S-5; 10 13.48 3 Earthen 1.38 6.89 Tri
P2.3 S. ditch S-3; 10 1.94 I Earthen 0.94 4.70 Tri
PZ-3 N. ditch S-2; f0 50.26 1 Earthen 2.47 12.34 Tri
P2-3 S-4 to ond; 10 49.77 31.4 Ri ra 0.51 12.54 10' Tra
P3 S. S-2 ditch; 10 8.65 I Earthen 1.42 7.10 Tri
P3 N. S-I ditch; 10 26.49 I Earthen 2.01 10.03 Tri
P3 S-3 To ond; 10 32.63 50 Ri ra 0.53 8.18 5' Tra
Ponds 4-I S ditch S3; 10 42.07 I Earthen 2.33 11.64 Tri
Ponds 4-I S4 To ond; 10 43.46 6 Ri ra 0.88 11.26 6' Tra
Fill4-2 S-I N ditch; 10 26.43 1 Earthen 2.00 10.02 Tri
Fill4-2 S-2 N fill; 10 31.40 I.5 Earthen 1.98 9.92 Tri
P4-3 N ditch S-I; 10 4.74 I Earthen 1.19 5.97 Tri
P4-3 S ditch S-2; 10 6.46 I Earthen 1.30 6.52 Tri
P4-3 West fill S-3; 10 7.33 I Earthen 1.35 6.77 Tri
P4-3 S4 Collection ditch,
10 18.15 9 Earthen 0.59 13.95 I I' Trap
P4-3 East fill D-I; 10 7.46 I Earthen 1.36 6.80 Tri
PS DS-1a; 10 28.58 1.0 Earthen 1.96 9.78 Tri
PS DS-Ib; 10 18.68 I.0 Earthen 1.71 8.56 Tri
Fill s-1 DS-Ic; 100 53.59 3.8 Earthen 0.89 18.54 IS' Tra
PS D5-ld; 10 18.91 28.8 Ri ra 0.40 12.42 10' Tra
P6 D6-Ia;10 29.14 I.0 Earthen 1.97 9.84 Tri
Fill6-l D6-lb; 100 8.92 3.6 Earthen 1.08 6.49 Tri
P6 D6-Ic; 10 16.44 2.0 Earthen 1.48 7.41 Tri
P6 D6-Id; 10 66.06 8.3 Ri ra 0.85 15.07 10' Tra
P7 south D7-la; 10 15.22 4.5 Earthen 0.65 l 1.26 8' Tra
P7 south D7-Ib; 10 15.92 2.8 Earthen 0.89 8.47 4' Tra
P7 mid D7-2; l0 16.58 1.7 Earthen 1.44 8.61 Tri
Fill 7-I D7-3a; 100 84.69 3.0 Ri ra 2.37 10.28 2' Tra
Fill 7-I D7-3b; 100 6.00 1.6 Earthen 1.14 5.72 Tri
Fill 7-I D7-3c; 100 96.66 8.5 Ri ra 1.88 13.26 2' Tra
P7 D7-3d;10 43.96 I.5 Earthen 1.29 13.77 6' Tra
Fill 7-2 D7-4a; 100 15.94 8.8 Earthen 0.51 18.03 IS' Tra
Fill 7-2 D7-4b; 100 14.15 4.7 Earthen 0.66 10.93 7' Tra
P81 D8-la; 10 22.92 1.3 Earthen 1.75 8.76 Tri
P8 D8-Ib; 10 12.94 12.7 Ri ra 1.19 5.95 Tri
DitchTableExhibit 15-TBL(475)Rev2
(Revised 09/ 10/01)