My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
PERMFILE123657
DRMS
>
Back File Migration
>
Permit File
>
300000
>
PERMFILE123657
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 10:21:23 PM
Creation date
11/25/2007 11:45:25 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980005
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Doc Name
SEDIMENTATION PONDS SEDIMENT STORAGE SURVEY
Section_Exhibit Name
TAB 07 APPENDIX 7-11A
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.
/
12
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
are required when a pond contains water. It is very difficult to find the low and high <br />points under water from one year to the next. <br />Based on the up drainage watershed characteristics, one 10-year, 24-hour precipitation <br />event would generate 0.05 ac-ft of sediment using M.U.S. L. E. <br />The equivalent of the sediment generated from approximately 110 10-year, 24-hour <br />precipitation events could be stored beneath the principal spillway elevation based on the <br />1986 sediment survey. This is a conservative amount of sediment storage; therefore, no <br />remedial sediment clean-out work is scheduled for the five-year permit term at this time. <br />Sedimentation Pond 004. The design infcrmati on and calculations for this pond were <br />submitted in the Seneca II Permit Renewal Application August 27, 1986 and subsequently <br />approved by CMLRD. On September 8, 1986, Sedimentation Pond 004 was resurveyed as part of <br />Se neca's 1986 annual sediment survey. The survey information was utilized to develop a <br />computer-generated contour map. This data was used to calculate the remaining sediment <br />storage beneath the principal spillway. <br />• The following table shows a comparison of the 1985 and the September 8, 1986 volume <br />calculations. <br />1985 September 8, 1986 <br />Capacity Cumulative Capacity Capacity Cumulative Capacity <br />Elevation (Ac-Ft) (AC-Ft) (Ac-Ft) (AC-Ft) <br />6936.0 <br />O.D84 0.05 0.050 <br />6937.0 <br />6938.0 <br />6939.0 <br />6940.0 <br />r1 <br />LJ <br />0.199 0.25 0.141 0.1 <br />69 0.331 0. <br />729 1.42 0.623 1. <br />1.039 2.46 0.883 2.03 <br />7-19A-3 <br />
The URL can be used to link to this page
Your browser does not support the video tag.