PERMFILE122816

• Permit No: M1983035
• IBM Index Class Name: Permit File
• Doc Name: PROJECT OVERVIEW
• Media Type: D
• Archive: No

a
a
(~ revision of such a system would have to be closely tied to
~f the actual mining operation, with recognition given to the
a following general design considerations:
1) Slopes of drainage ditches and channels would be
kept moderate, or control drogs or channel protec-
a tion provided to reduce erosion potential;
2) Culverts would be provided under constructed road-
a ways giving consideration to natural drainageways
and adequate design flows;
3) Riprap protection would be provided in areas which
would otherwise be susceptible to erosion.
Because no runoff is anticipated, a National Pollutant
Discharge Elimination System (NPDES) permit is not
a required.
Soils on site are within the A hydrologic soil group,
These soils have high infiltration rates when thoroughly
wet and a low runoff potential.

a
a
a G-Z