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2022-04-25_PERMIT FILE - M2022019
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2022-04-25_PERMIT FILE - M2022019
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Last modified
4/26/2022 9:34:31 AM
Creation date
4/25/2022 9:35:32 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2022019
IBM Index Class Name
Permit File
Doc Date
4/25/2022
Doc Name
Application
From
Oldcastle SW Group, Inc. dba United Companies
To
DRMS
Email Name
LJW
THM
AWA
Media Type
D
Archive
No
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2.1 . Sump Capacity <br /> Hydrology Report <br /> Hydraftw Express EAensoan for Autade CVW 300by Autede-A.Ina. freay,Apr 5 3029 <br /> Skeleton Pit- Mining Conditions <br /> Hydrograph type = SCS Peak discharge(cfs) = 59.17 <br /> Storm frequency(yrs) = 100 Time interval(min) = 1 <br /> Drainage area(ac) = 25.500 Curve number(CN) = 89 <br /> Basin Slope(%) = 2-00 Hydraulic length(ft) = 1000 <br /> Tc method = Lag Time of conc. (min) = 16 <br /> Total precip_ (in) = 2.90 Storm Distribution = Type 11 <br /> Storm duration(hrs) = 24 Shape factor = 484 <br /> HWropraph Volume=Sag,1306 f<ut}3 894(adt) <br /> The area of the pit that drains to the west sump is 25.5 acres. With a two foot stormwater berm, <br /> there is a minimum of 51 acre-ft of storage. This more than sufficient to contain the entire 3.9 <br /> acre-ft of runoff that drains to this area. <br /> Skelton Pit <br /> January 2022 G'3 Lewicki 81 Associates <br />
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