PERMFILE40498

• Permit No: C1981071
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: Exhibit 13 4th Part
• Media Type: D
• Archive: No

Table 3
• 1
EC~1AN PARK MINE - POMD D
COMPUTATION OF FLOW THROUGH RISER PIPE
DESIGN DATA
Riser Pipe Outle: Pipe
Crest Elev (ft) 6849.90 Flovline Elev (ft) 6843.40
Diameter (f t) 2.00 Diameter (ft) 1.50
Le^9th (f t) 80.00
Riser Perforations Xxrn ing n 0.025
Nurber of holes ~ 4 KA 0.50
Diameter (in) 4.00 K.n 0.50
Elevations (ft) 6846.50 Kp 0.067
6848.50 Tailvater Elev (ft) 6844.10
Cd(PUTED DfSCHARGES CONSIDERING FLOV THROUGX PERFORATIONS, VEIR FLOV INTO RISER, ORIFICE fLOV INTO RISER,
ORIFICE FLOV INTO PIPE AND FULL PIPE FLLW CONDITIONS
Stage Orifiee Veir Flov Orifice

• Flow
Perforations Over
Riser Flow of
Riser
(cfs) (cfs) (cfs)
6846.0 0.0 0.0 0.0
6846.5 0.0 0.0 0.0
6847.0 1.2` 0.0 0.0
6847.5 1.7 0.0 0.0
6&.8.0 2.1 0.0 0.0
6868.5 2.4 0.0 0.0
6849.0 3.8 0.0 0.0
6849.5 4.6 0.0 0.0
3850:0 -9:2 0 6 ~ -4.8-
6850.5 5.7 9.1 11.7
6851.0 6.2 22.5 15.9
6851.5 6.7 39.4 19.1
6852.0 7.1 59.3 21.9
6852.5 7.5 81.7 2G.G
6853.0 7.9 106.3 25.6
6853.5 8.2 733.0 28.7
6856.0 8.9 161.7 30.6
685<.9 8.9 192.2 32.4
6855.0 9.2 224.3 34.2

Total Total
Orif iee FuLI Yeir « Orifice + Controlling
Flow of Pipe Pe rforation Perforation Flou
Dipe Flow Flow flow
(cfs) (cfs) (cfs) (cfs) (cfs)
0.0 0.0 0.0 0.0 0.0
0.0 0.0 0.0 0.0 0.0
0.0 0.0 1.2 1.2 1.2
0.0 0.0 1.7 1.7 1.7
0.0 0.0 2.1 2.1 2.1
0.0 0.0 2.G 2.4 2.4
0.0 0.0 3.8 3.8 3.8
0.0 0.0 <.b 4.6 4.6
19.2 ~ 13.6 5.8 10.0 5.8
20.1 14.2 1G .8 17.5 14.2
21.0 14.7 29.7 22.1 14.7
21.9 15.3 46.1 25.8 15.3
22.7 15.8 66.< 29.0 15.8
23.5 16.3 89.1 31.9 16.3
24.2 16.7 114.2 34.5 16.7
25.0 17.2 141.2 36.9 17.2
25.7 17.6 170.2 39.2 17.6
26.4 18.1 201.0 41.3 18.1
27.0 18.5 233.5 43.3 18.5
Water Engineering & Technology, Inc.
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