PERMFILE136728

• Permit No: C1981013
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 18 SURFACE WATER CONTROL DESIGN DATA
• Media Type: D
• Archive: No

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TARLE 3
MAXWELL MINE DISTURBED DRAINAGES

LABEL
DESCRIPTION I
AREA
Af.RES BASIN
LENGTH SLOPE
FT X COEFFICIENTS
RUNOFF RET
CN TIME OF
COrlCENT
t11N 10Y-PEAK
INTENS
IPH RUNOFF
10Y-24H PEAK
AC-FT CFS
POrlp C03 DRAINAGE BASINS
003-1 GRAVEL PARKING Lor 3.3 450 1 0.50 0.02 89 24 2.84 0.52 4.69
003-2 112 GRAVEL E ]/2 REVEG 2.2 260 18 0.35 0.03 74 11 4.10 0.17 3.15
003-3 9110 GRAVEL 6 1/f0 REVEG 10.3 108C 1 0.50 0.02 89 31 2.48 1.63 12.77
003-4 213 GRAVEL 6 1/3 REVEG 6.6 370 13 0.50 0.02 88 7 4.79 1.00 15.80
003-5 GRAVEL RAILROAD YARD 2.4 1575 2 0.50 0.02 89 33 2.42 0.38 2.90
POND 004 DRAINAGE BASINS
C04-1 9110 SPOILS s 1/10 REVEG
SPOILS LATER REVEL 9.9 360 SO 0.35 0.03 75 13 3.80 0.79 13.15
004-2 112 SPOILS 6 112 REVEG
SPOILS LATER REVEL 3.4 455 15 0.35 0.03 75 12 3.94 0.27 4.68
004-3 GRAVEL RAILROAD YARD 1.1 880 2 0.50 0.02 89 25 2.80 0.17 1.54
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