PERMFILE130375

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 08h HYDROLOGIC EVALUATION OF SEDIMENTATION PONDS A, D AND G
• Media Type: D
• Archive: No

Table 2
VATER ENGINEERING 8 TECHNOLOGY, INC. 2/97
419 CANYON AVENUE, SUITE 225
fORT COLLINS, CO 80521
sTAOE-D35CHARGE RELATIONSHIP FOR POND A
COLORADO TAMPA COAL COMPANY - ECKTIAN PARR MIME
r~
U
•
Stage Riser Spoil Total F:.u Emergency Total
In Discharge Spring Thro~;h Spillway Discharge
Pand A Basef law Rises • Discharge••
(ft) (cfs) (cfs) (cfs) (cfs) (cfs)
6930.0 0.0 0.0 0.0 0.0 0.0
6930.5 0.0 0.0 C.0 0.0 0.0
6931.0 0.0 0.0 0.0 0.0 0.0
6931.5 0.0 0.0 0.0 0.0 0.0
6932.0 0.0 0.0 0.7 0.0 ~ 0.0
6932.5 0.0 0.0 O.0 0.0 0.0
6933.0 0.0 0,0 G.0 0.0 0.0
6933.5 0.0 0.0 0.7 0,0 O.D
6934.0 0.0 0.0 0.7 0.0 0.0
6934.5 0.0 0.0 C.0 0.0 0.0
6935.0 1.9 1.9 0.7 0.0 0.0
6935.5 2.6 2.6 0.7 0.0 0.0
6936.0 3.2 3.2 0.7 0.0 0.0
6936.5 5.6 3.8 1.9 0.0 1.8
6937.0 6.8 3.B 3.0 0.0 3.0
6937,5 7.8 3.8 4.7 0.0 4.0
6938.0 10.5 3.8 E.7 0.0 6,7
6938.5 25.8 3.8 22.7 0.0 22.0
6939.0 52.3 3.8 48.5 0.0 48.5
6939.5 86.1 3.8 62.3 99.0 181.3
6940.0 101.1 3.8 9i.3 280.0 377.3
6940.5 112.2 3.8 10E.= 514.4 622.8
6941.0 122.3 3.8 118.5 792.0 910.4
6941.5 731.6 3.8 127.3 1106.8 1234.6
6942.0 140.2 3.8 13c.= 1454.9 1591.3
. * Riser discharge less spoil spring ta sef low of 3.8 cfs
•• spillway Discharge a 2.8 • 100 • 9' 1.5
Spi lluay Elevation = 6939 .0
Water Engineering & Technology, Inc.