My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
PERMFILE139734
DRMS
>
Back File Migration
>
Permit File
>
300000
>
PERMFILE139734
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 10:42:51 PM
Creation date
11/26/2007 8:55:39 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1997054
IBM Index Class Name
Permit File
Doc Name
STORMWATER MANAGEMENT PLAN
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.
/
120
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
Slormweter Manaeement Plan 01/04/98 <br />• Exhibit E Reclamation Plan <br />1.0 Post Mining Land Use <br />The Parkdale Ranch Project Area will be reclaimed to open space and dry land pasture <br />consistent with pre-mining land use and existing adjacent lands. After the completion of <br />mining, nearly all of the land area will continue as ranch land and open space. Certain <br />limited structures, roads and tracks will remain for use by the shoreline freight and tourist <br />railroad operations. <br />2.0 Introduction <br />Concurrent reclamation of disturbed areas will be implemented to the extent possible. <br />Gravel Area "B" will be backfilled with plant fines or unmazketable rock and sand material <br />- material the same or similar to material already in the existing gravel bar. All disturbed <br />areas within the gravel bar azeas will be graded to final slopes of 3.0:1 or less. Current <br />plans for permanent reclamation stabilization measures include development of a post- <br />mining topography that is self-draining and blends into adjacent undisturbed lands to the <br />extent possible. Following grading, all disturbed areas, except for the quarry faces, will be <br />topsoiled and seeded with a diverse seed mix. The quarries will be reclaimed to wildlife <br />habitat and open space via a mixture of highwall faces, shot rock talus slopes and <br />revegetated/nonvegetated mine benches. Available topsoil and/or amended planting media <br />from operations will be hauled to the reclaimed mine benches and, where used, applied to <br />a depth of 6" to 12". The final reclamation of the granite quarry azea will address a <br />number of issues. The final quarry land form will: <br />1) conform as much as possible to the original and/or adjacent contours, <br />2) meet or exceed the original vegetative cover and wildlife carrying capacity, <br />3) "break" the straight bench lines and highwall vertical faces with combinations of <br />rock talus slopes, revegetated benches and un-revegetated benches, and <br />4) leave the site under long term mechanical stability for public safety. <br />2.1 Soil Salvage and Stockpile Design <br />Soil will be salvaged from all disturbed areas in advance of any disturbance to depths <br />between 5.5" and 12" deep. Most areas with topsoil are intermixed with boulders and <br />cobbles. Any +4" material will be scalped to improve top soil availability and quality. <br />Recoveries are expected to range between 30% - 85%. Gravel topsoil salvage will start <br />with the plant area and move to gravel area IB followed as needed by areas IA, II and III. <br />Advancement will depend upon product demand. Quarry topsoil salvage will start with <br />the plant areas and move to Granite areas I, II and III as the granite quazry is developed. <br />All gravel salvaged topsoil will be placed on the temporary topsoil stockpile. All quarry <br />salvaged topsoil will be placed on storm water berms or the temporary topsoil stockpile. <br />. The table at the end of this section summarizes expected topsoil salvage from each area. <br />Page 16 <br />
The URL can be used to link to this page
Your browser does not support the video tag.