GENERAL47131

• Permit No: M1989065
• IBM Index Class Name: General Documents
• Doc Name: BASIN DATA
• Media Type: D
• Archive: No

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CENTENMAL MATERIALS, INC ~ ~ ' i~ ~~ : r k ` i~ ~ s ; ` ~ 4' "'~ ,~ ~ 94 18~
CASTLE ROCK UARRIES ~ { z ~ $ ~ k
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POST MIN1NC DRAINAGE ~5U1~lNIX$' ~ Lz 5~y"I~yyy~!~, ' ~ S ~ ~ '''sa "~'~, ~`,~ ~ `~'z, -1m-~~~'a~ ~ „ ~ ti+~ ~ ~ s ~(~~ : b~
TUITLEAPPLEGATE~II,~(~'.a~~k~~..~",. ~'~z ~ ~ x a ~w~_„~~._i... ~~ _~'tt..,e. v.~:. ,.J,..-
DRAINAGE DATA FOR BASINS BELOW MINED AREA
10-year 24-hour event 100-year 24-hour event

Sub-Basin Total
Area
(acres)
Curve
Number Time of
Concentration
(hours) Time of
Concentration
{min) Runofl
Volume
(ac-ft) Peak
Discharge
(cfs)
Peak q
(cfs/ac) Runoff
Volume
(ac-ft) Peak
Discharge
(cfs)
Peak q
(cfs/ac)
B 69 62 0.14 8 2.1 I S 0.2 6.2 6 0.1
D 48 57 0.17 10 0.8 4 0.1 3.1 27 0.6
E 101 64 0.31 19 3.6 22 0.2 10.1 78 0.8
G 41 66 0. I6 I 0 1.7 ] 5 0.4 4.6 46 I . I
I 13 65 0.09 5 0,5 6 0.5 1.4 I8 1.4
J 18 70 0.42 25 I,0 6 0.3 2.4 17 I.0
L 9 81 0.54 32 0,9 6 0.7 1.9 12 1.4
t: I6 78 0.45 27 1,4 10 0.6 3.0 21 1.3
O 21 72 0.14 8 1.3 13 0.6 3.1 31 I.5
C:IPROJECTS\94139\ WINDRAIN.XLS