2021-06-23_REVISION - M1977300

• Permit No: M1977300
• IBM Index Class Name: REVISION
• Doc Date: 6/23/2021
• Doc Name Note: *NO PAYMENT INCLUDED*
• Doc Name: Request For Amendment To Permit
• From: Colorado Legacy Land
• To: DRMS
• Type & Sequence: AM6
• Email Name: AME
• Email Name: MAC
• Media Type: D
• Archive: No

COLORADO LEGACY LAND
$CHWARTZWALDER MINE
TABLE OF CONTENTS
LISTOF TABLES....................................................................................................................................................................................................IV
LISTOF FIGURES..................................................................................................................................................................................................IV
EXHIBITA. LEGAL DESCRIPTION....................................................................................................................................................................5
EXHIBITB. INDEX MAP....................................................................................................................................................................................7
EXHIBIT C. PRE-MINING AND MINING PLAN MAP(S)OF AFFECTED LANDS.........................................................................................9
EXHIBITD. MINING PLAN..............................................................................................................................................................................11
EXHIBITE. RECLAMATION PLAN.................................................................................................................................................................13
E.1. CONCEPTUAL CONSIDERATION................................................................................................................................................13
E.2. INTERCEPTION AND TREATMENT OF ALLUVIAL GROUNDWATER......................................................................................14
E.3. ISOLATION OF RALSTON CREEK FROM SOURCES OF IMPACTS............................................................................................14
E.4. MITIGATION PLAN FOR SOLID SOURCE TERM MATERIALS.................................................................................................14
E.5. MINE POOL MITIGATION..........................................................................................................................................................14
E.5.1. PHYSICAL STABILIZATION OF THE MINE POOL DEMONSTRATION....................................................................................14
E.5.2.1. PHYSICAL STABILIZATION OF THE MINE POOL CONCLUSION.............................................................................................15
E.5.1. CHEMICAL STABILIZATION OF THE MINE POOL DEMONSTRATION...................................................................................16
E.5.2.2. IN-SITU TREATMENTS...............................................................................................................................................................19
E.5.2.3. IN-SITU TREATMENT RESULTS................................................................................................................................................19
E.5.2.4. CHEMICAL STABILIZATION OF THE MINE POOL CONCLUSION............................................................................................21
E.5.2. PHYSICAL AND CHEMICAL STABILIZATION CONCLUSION....................................................................................................24
E.5.3. TRACER TEST..............................................................................................................................................................................25
E.5.4. WATER TREATMENT PLANT OPERATING STRATEGY..........................................................................................................25
E.6. WATER QUALITY MONITORING PLAN....................................................................................................................................26
EXHIBITF. RECLAMATION PLAN MAP........................................................................................................................................................32
EXHIBITG. WATER INFORMATION..............................................................................................................................................................34
EXHIBIT H. WILDLIFE INFORMATION..........................................................................................................................................................36
EXHIBIT1. SOILS INFORMATION..................................................................................................................................................................38
EXHIBIT J. VEGETATION INFORMATION.....................................................................................................................................................40
EXHIBIT K. CLIMATE INFORMATION............................................................................................................................................................42
EXHIBIT L. RECLAMATION COSTS................................................................................................................................................................44
EXHIBIT M. OTHER PERMITS AND LICENCES..............................................................................................................................................51
EXHIBITN. SOURCE OF LEGAL RIGHT-TO-ENTER.....................................................................................................................................53
EXHIBIT 0. OWNERS OF RECORD TO AFFECTED LAND(SURFACE AREA)AND OWNERS OF SUBSTANCE TO BE MINED..............55
EXHIBIT P. MUNICIPALITIES WITHIN TWO MILES...................................................................................................................................57
EXHIBIT Q. PROOF OF MAILING OF NOTICES TO COUNTY COMMISSIONERS AND CONSERVATION DISTRICT.................................59
EXHIBIT R. PROOF OF FILING WITH COUNTY CLERK AND RECORDER...................................................................................................61
EXHIBIT S. PERMANENT MAN-MADE STRUCTURES.................................................................................................................................63
JUNE 2021 Ili AMENDMENT 6