2022-02-23_PERMIT FILE - M2021059 ‎(13)‎

• Permit No: M2021059
• IBM Index Class Name: Permit File
• Doc Date: 2/23/2022
• Doc Name: Adequacy Review Response
• From: Telesto
• To: DRMS
• Email Name: JLE
• Email Name: PSH
• Media Type: D
• Archive: No

To- Nir. Peter Ha`s
Date: February 21. 2022
Pa,,e 14
Comment 31
The Applicant submitted a copy of the structure agreement cover letter for Janice Knaub.
Ms. Knaub is not listed as a permanent man-made structure owner in Exhibit S or on
Exhibit C-17. Please explain this discrepancy and revise the Exhibits as required.
Response 31
Ms. Knaub's property is partially within the 200-foot offset of the Project's boundary,
while her structures are over 200 feet from the Project boundary.
Comment 32
The Inlet Protection report submitted for the Dunn Pit application was reviewed by Rob
Zuber with the Division. A copy of Mr. Zuber's review memo dated December 17, 2021 is
attached. Please respond to the adequacy questions contained in the memo.
Response 32
We respond to the comments on the inlet protection report subsequently.
Comment 33
Exhibits F, G and Appendix D for the Dunn Pit application were reviewed by Patrick
Lennberg with the Division. A copy of Mr. Lennberg's review memo dated December 9,
2021 is attached. Please respond to the adequacy questions contained in the memo.
Response 33
We respond to the comments by Mr. Lennberg subsequently.
6.5 Geotechnical Stability Exhibit
Comment 34
The Applicant submitted a Factor of Safety calculation based on assumed soil properties
to demonstrate the geotechnical stability of the mined and reclaimed slopes. The Division
will require the Applicant to provide an engineering stability analysis for the proposed
mined and reclaimed slopes. The model must be performed using stability analysis software
to allow verification of the models by the Division. The stability analysis model must
assume the worstcase scenario for the mined and reclaimed slopes.
Response 34
As documented in the calculation set provided in Appendix B of the 112c Permit
Application update(October 2021)and the updated Appendix B 1 (Attachment 12),Telesto
completed a slope stability analysis of the planned mined and reclaimed slopes utilizing
20220209_1045_DRA S_Adequacy Review Response_MASTE
R.docx TELESTO