2020-10-27_PERMIT FILE - M2020035 ‎(3)‎

• Permit No: M2020035
• IBM Index Class Name: Permit File
• Doc Date: 10/27/2020
• Doc Name: Adequacy Review Response
• From: Greg Lewicki & Associates, PLLLC
• To: DRMS
• Email Name: ACY
• Email Name: THM
• Media Type: D
• Archive: No

4. Stormwater—Diversions and Impoundments.
Surface water from storms, known as stormwater runoff, will be collected in the mining pit
during operations. As shown on Map G-1, the local drainage area consists principally of the 23 '/4
West Pit and immediate area. The pit will act as a sediment pond during operations.No diversion
of upstream waters will occur. Impounding of water will only be temporary,to trap sediment,
with all stormwater runoff leaving the site within 72 hours. Exhibit G covers surface water
management in detail.
23 114 West
October 2020 D-6 n ,_