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PERMFILE43021
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PERMFILE43021
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Last modified
8/24/2016 10:45:26 PM
Creation date
11/20/2007 11:25:07 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981022
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Doc Name
DRAINAGE AND SEDIMENT CONTROL CALCULATIONS FOR HUBBARD CANYON VENTILATION FACILITIES
Section_Exhibit Name
Exhibit 2.05-E3 SECTION 4
Media Type
D
Archive
No
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Sub.~ect SPILLWAY ADEQUACY <br />Hubbard Canyon Ventilation Facilities <br />Pro. 2 -Somerset Coal Mine <br />. \ Sedimentation Ponds 2, 3, and 0. <br />DLtch D1~C~g6 CNCLY fO~YUt.a <br />~~ ~ ~ _ ~ r <br />q • 0 030 <br />• va.-,er I 6 -' <br />~. <br />CALCULATION NOTES <br />8y BAF <br />Checked <br />Acct <br />_ lulu 16 19f <br />Sheet No. 1 of 1 Sheets <br />Trle cun•entlona) method for T~ ~~ (Cl to for ItarwuL <br />c.rnputtl~C tht n.tw yr rater t0 Open than- 4~d1 p7 ~. 1CuaV lonwda: <br />nd. a Dr w< UKty IW tnuL: l.8n ooozt <br />Y_C .• -tyl.cGt__ <br />n s <br />Y. V<luc.l y, IL pV ~ C= <br />j ~ , . r+.al.,,ht radlllr <br />!~ R o <br />an[E <br />7 <br />S1 ~ ~ ~ _ <br /> <br />e -~ , <br />t t~\ <br />1 e ~• <br />7rooa•loid 0 ` . <br />, <br />(t - 41. b ~ t - <br />.-u.enaltnt ur rcut hrrY ~ s <br /><_.I~p< ur tradt of tJr•oeL <br />The too,yu~ea drs~Mrtt t• then Q <br />=471 X 1.~0=6.6 tv IL per .a <br /> < tdfA d~O~'S $/O /q/~S Glfe<Y Nr direr(/.C <br />- - - <br /> z b d <br />~~ - ---- t <br />- - ~ - - - - ~ -- <br />----- <br />- .. <br />~7 - !'L fl. f <br />r- f <br />Qc..~r 1 ~ . r <br />I <br /> <br />2 <br />1.25 1 <br />0.305 <br />0.50 -1 <br />0.421 j ----- -- - . -- --- <br />1.976 0.213 ~ <br />27.521 ~ <br />8.984 X3.785 <br /> r-.-_.__._. ~_- __.-- rr <br />beak Flow <br />from 25_24 storf m* <br />~ 3.761 <br /> <br />- <br />__. <br />reeboard = '359.5 - <br />(6358.0 + 0.305T 1.195 ft <br /> - <br />1 <br />~- T- I <br /> _~ <br /> - ~ <br />1 t ~ <br /> ' <br />3 .5 5.0 0.251 0.05 1.350 5.905 ~ 0.229 i 28.216 3.016 4.070 <br />Peak Flow from 25-24 storm* _ ~ 4.078 <br /> Freeboard -`6340.0- (638.5 + 0.251) = 1.249 ft. <br /> <br />t I <br />~ ~ <br /> I - <br />_~ <br />i <br /> 1 5,5 ~ 0.144 0.10 ~ 9.823 ~ 6.019 ~ 0.137 _ ~ -.23.289 2.723 -j 2.242 <br /> T --- <br />~Peak flow from 25-24 st rm* = <br />2.245 <br /> (Freeboard ='6355.0 - 6353.5 + 0.144 = 1.356 ft. <br /> i I { <br /> I ~ ~ . <br /> 1 u ~ ~ <br /> ~ I ~ i <br />~ <br />~ <br /> ' j i <br />~- ~-JT <br />~ -~--- ~ <br />i <br /> T <br /> ~+ <br />. J.--l....~.. C~..~h..m ~~<~ TOn f.iTl(111 nn s an <br />RCICI CIIL,C rIVLCr-LIVII v~ WIG ~r)~r ..~v~•.. -~.. -~~~~ - <br />and Table 5-lA, "Peak Flows in Colorado". <br />
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