PERMFILE116419

• Permit No: C1981018
• IBM Index Class Name: Permit File
• Doc Date: 5/13/2002
• Section_Exhibit Name: Illustration 02 through 06
• Media Type: D
• Archive: No

r
198COIt d~iiVfB~UIh ~RC. a~SF-os
ll~arN(llr~-cor~T~ucTO~s SITE PREPARATION & DRAINAGE REV. 1
~111T uR~ CRY, UT~M STANDARD FORM
RUNOFF & SEDIMENT CALCULATIONS 9/80
SHT. 1 OF 12
DETERMINATION OF SEDIMENT VOLUME, SETTLING VOLUME
AND TOTAL STORAGE VOLUME OF SEDIMENTATION PONDS
PROJECT ~VESTErC~J FUF1.5 _~E:SEl1~i~o nltLlt= JOB NO. UG_ 34(0
~~~uSE a.2EFy_?~ ~_ __ __ POND NO. 2 P~_4-_
BY D. IA. tV. DATE 9•ZS•bJ CHECKED BY DATE
1. SEDIMENT VOLUME
CONTRIBUTING DRAINAGE AREA, ACRES
DISTURBED AREA IN CONTRIBUTING AREA, ACRES 2:r -4
l I

A. Sediment Volume = .1 acre ft. of sediment per acre of disturbed area.
_ .1 acre ft./acre X 2L.4 acre
2. L4 `acre-R.
B. Sediment Volume = 3 Years sediment From entire watershed as determined by the Universal
Soil Loss EUUa[IOn (USLEI USLE : A=RKLSCP
Where: A = Average annual soil loss in tons/acre.
R = Rainfall factor
K = Soil erodibil ity factor
LS = Slope length a:td slope Gradient factor
C = Cover factor
P = Erosion control pracUCe factor
Nlatershed must be divide d into sub areas d different factor occur for different areas within the watershed.
SUBAREA
I.D. NO. SUB AREA DISCRtPTION AREA
Ar R I K LS C p q TONS
A X Ar

I Lnc rs urberl
/nn.{erse., Sk.n.. CI:.
4,0 ~
30 ~ 0.28
2.1
o.oa°
I
o.~
3.0
Z (ZG~u-tee - ~'edn~.-.~~l-P~t/~
/Aovars~.. S1o.~r~ CIS 25.9 30 ~0.2$ ILO I I %2.4 2,3~3.Z
3 ~lati~ ~o vcl
~ir o~el $u.-{uCe O.S 30 0.101 O.I I I U-3 O.Z
~ i~...~1 A~rc~
/Any c+'s=n $~~..~.~ GIa.1
I .9
30
D ~8
O,S
I I
I
4.Z
i'J.O

- I
_
i
TOTAL AREA 32,3 TOTAL TONS PER YEAR Z~404.4-
TONS/YEAR x 20001b/TON x 3 YEARS
SEDIMENT VOLUME (ACRE FEETI =
(Settled Density = ~~ Ib/f13) ~ O Ibs/ft,3 r 13fifi0 ft2/ ACRE
10.80 _ S'E'E iYIfJ-/~S 7G,77~~D
4, 14-