My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2012-06-28_PERMIT FILE - M2012032 (21)
DRMS
>
Day Forward
>
Permit File
>
Minerals
>
M2012032
>
2012-06-28_PERMIT FILE - M2012032 (21)
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 5:02:02 PM
Creation date
7/2/2012 3:40:53 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2012032
IBM Index Class Name
PERMIT FILE
Doc Date
6/28/2012
Doc Name
Appendix 6 & 7
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
21
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
25 -Yr 24 -hr Event <br />Runoff Curve Number and Runoff <br />Project: SWB -6 <br />Location: Revenue <br />Developed <br />1. Runoff Curve Number (CN) <br />Cover description <br />Mined Land, Disturbed (Poor) <br />CN (weighted): 87.0 <br />Total Area: 8.131 Acre <br />2. Runoff <br />Return Period: <br />Rainfall, P: <br />Runoff, Q: <br />Runoff Volume: <br />10 -Yr 24 -hr Event <br />Graphical Peak Discharge <br />By: B Langenfeld Date: 05/23/12 <br />Checked: Date: <br />CN Soil Group Area(Acre) <br />87 C 8.131 <br />25 -Year <br />2.60 in <br />1.3952 in <br />0.9454 Acre -Ft <br />Project: SWB 6 <br />Location: Revenue Mine <br />Developed <br />1. Data: <br />Drainage area: .................... A <br />Runoff Curve Number: ............. CN <br />Time of Concentration: ........... Tc <br />Storm Type :....................... <br />Pond and swamp areas spread <br />throughout watershed ............... <br />2. Frequency ........................yr <br />3. Rainfall ,P(24 - hour) .............. in <br />4. Initial abstraction, Ia............ <br />5. Compute Ia /P ....................... <br />6. Unit peak discharge, qu ...... csm /in <br />7. Runoff ,Q .........................in <br />8. Pond & swap adjustment factor .... Fp <br />9. Peak Discharge,gp ...............cfs <br />Revenue Mine August 2012 6 -4 <br />By: B Langenfeld <br />Checked: <br />6.9550Acres <br />87 <br />0.35 <br />II <br />0.00 percent of A <br />0.0000 Acres <br />10 <br />2.60 <br />0.2989 <br />0.1149 <br />631.06 <br />1.3952 <br />1.00 <br />9.5679 <br />Date: 03/23/12 <br />Date: <br />
The URL can be used to link to this page
Your browser does not support the video tag.