PERMFILE124301

• Permit No: C1981014A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: pages 197 to 209
• Section_Exhibit Name: EXHIBIT 19 SMALL AREA EXEMPTIONS
• Media Type: D
• Archive: Yes

CHANNELS
• The existing designs found in this exhibit for the channels that will
remain were calculated for worst case condition and should be adequate
for post closure conditions. No additional or redesign is required.
SAES
The existing sediment control structures associated with the SAES will
remain in place after final grading and topsoil. placement is completed.
The sediment controls will remain in place until vegetation is
reestablished. The existing designs found in Appendix C of this Exhibit
for the SAES that will remain were calculated for worst case condition
and should be adequate for post closure conditions. No redesigns are
required.
In addition to the existing SAES two new SAES will be required the Yard
Area and the Topsoil Area.
Yard Area
When Pond 1 was back filled and regraded the majority of runoff that
reported to Pond 1 was diverted to Pond 5, however there will be a
small area that will drain directly to the Magpie Creek Permanent
Diversion. This area, known as the Yard Area, is shown on Map 30,
Southfield Reclamation Map.
The yard Area occupies about 0.75 acres. To control runoff from the
Yard Area, EFCI will use sediment fence, straw bales or rock berms.
• Hydrologic documentation for the sediment control structures can be
found in Attachment 2 (located at the end of this section). SEDCAD4
utility modeling is provided to show that the use sediment fence, straw
bales or gravel will effectively treat runoff from the SAE. In
addition, calculations are provided that estimate the minimum area of
silt fence, straw bales or gravel berm is required.
Since all applicable exemption requirements of Rule 4.05.2(3) are
adequately addressed, EFCI respectfully requests approval of a Small Area
Exemption for ttie Yard Area SAE. Once vegetation is reestablished the
sediment control structure will be removed.
Topsoil Area
Within EFCI existing permit boundary is an old existing topsoil stockpile
which was left behind by a previous mining operation (Newlin Creek Mine).
EFCI was granted permission from DMG to use the topsoil in their
reclamation of the Southfield mine. The location of the topsoil stockpile
area is shown on Mine Area Soil Map (Map 14).
The Stockpile Area occupies about 1.65 acres. To control runoff from
the topsoil stockpile area EFCI will use sediment fence, straw bales or
gravel berms. Hydrologic documentation for the sediment control
structures can be found in Attachment 2 (located at the end of this
section). SEDCAD4 utility modeling is provided to show that the use
sediment fence, straw bales or gravel will effectively treat runoff
from the SAE. In addition, calculations are provided that estimate the

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