PERMFILE61158

• Permit No: C1981016
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: Hydrology calculations
• Section_Exhibit Name: APPENDIX XXI Section XXI.9
• Media Type: D
• Archive: No

C~

•
Project EAST MINE
Areas Land
Of Itle YSC Or
Pmiect Cond.
LanJ :unJuwn:
Datc_J/25/79
Est.
Universal Sod-Loss Fsyuauon Facwn 5uil
_.-.- LOSS
R K L S LS (' P T/AdYr
Eel.
Acres $UII L11D]
in frum Area
Arca TunJVr

1 ub-Station
Pond
40
.15
280'
21%
8
1
1 ,022
48
1,08
51,84
2T/yr x 2~ p~ - 1
04 cu / 1.0 cu.ft,/ r =
024 cre foot/
1
u ft, , . ,
r~ 4 . y
024 Acre t/ _
02 Acre foot r/ac 035 A
f
t /

,08 Acre , y ~ , cre
oo cre
yr
USE ,035 Ac a foot/Acr

2 Shrubs east
f new sub,
40
,15
340'
22%
11
,15
1 ,005
9,9
.50
4,95

3 hove fan
° ,033

4A lope abov
hi hwa
40
.15
105'
46%
18
.15
1 ,007
16.2
50
8 10

4B lope belo
hi hw
40
.15
55'
S5%
14
.15
1 .006
12,6
,49
6.17

4C Water
Tank
40
.15
150'
20%
5,3
.15
1 .002
4,8
,29
1.39

5 Mine
Yard
40
.15
450'
8%
2.1
1
1 .006
12,6
,25
53.55
1427/yr x ,GOON = f
cu r 97 141
84
. Y , ,
2,840 cu.ft./ r = 065 AF/ 06 AF/ r

,56 sq, ft, Acr , , . _
-
.009 a
re foot/acr ,
USE ,03

6 Laydown
Area
40
.15
190'
13%
3.1
1
1 ,009
18.6
1.28
23.81
24 T/yr x 2 r ~N/T
~T~~,ft.
EROSION CALCULAI'IUNS
= 480 cu.ft/yr. 480 tu'ft'/ _ ,011 Acre Foot/yr.
3,560 sq,ft. Aere ft,
/yr.
,011 Acre ft/yr = X009 Acre ft/Acre yr, ~ t .035 acre ft/acre
1,28 acre
Use .035 acre/ft/acre
I