2022-05-13_REVISION - M1977300

• Permit No: M1977300
• IBM Index Class Name: Revision
• Doc Date: 5/13/2022
• Doc Name: Adequacy Review Response #2
• 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
TABLEOF CONTENTS..........................................................................................................................................................................................[tI
LISTOF TABLES......................................................................................................................................................................................................V
LISTOF FIGURES..................................................................................................................................................................................................VI
EXHIBITA. LEGAL DESCRIPTION....................................................................................................................................................................1
EXHIBITB. INDEX MAP....................................................................................................................................................................................3
EXHIBIT C. PRE-MINING AND MINING PLAN MAP(S)OF AFFECTED LANDS.........................................................................................5
EXHIBITD. MINING PLAN................................................................................................................................................................................7
EXHIBITE. RECLAMATION PLAN...................................................................................................................................................................9
E.1. CONCEPTUAL CONSIDERATION..................................................................................................................................................9
E.2. INTERCEPTION AND TREATMENT OF ALLUVIAL GROUNDWATER......................................................................................11
E.3. ISOLATION OF RALSTON CREEK FROM SOURCES OF IMPACTS............................................................................................11
E.4. MITIGATION PLAN FOR SOLID SOURCE TERM MATERIALS.................................................................................................12
E.S. MINE POOL MITIGATION..........................................................................................................................................................15
E.5.1. PHYSICAL STABILIZATION OF THE MINE POOL DEMONSTRATION....................................................................................15
E.5.1.1. PHYSICAL STABILIZATION OF THE MINE POOL CONCLUSION.............................................................................................17
E.5.2. CHEMICAL STABILIZATION OF THE MINE POOL DEMONSTRATION...................................................................................17
E.5.2.1. IN-SITU TREATMENTS...............................................................................................................................................................22
E.5.2.2. IN-SITU TREATMENT RESULTS................................................................................................................................................22
E.5.2.3. CHEMICAL STABILIZATION OF THE MINE POOL DISCUSSION.............................................................................................24
E.5.2.4. CHEMICAL STABILIZATION FUNCTIONAL DEFINITION.........................................................................................................29
E.5.2.5. PHYSICAL AND CHEMICAL STABILIZATION CONCLUSION....................................................................................................29
E.5.3. TRACER TEST..............................................................................................................................................................................31
E.5.4. WATER TREATMENT PLANT OPERATING STRATEGY..........................................................................................................32
E.6. WATER QUALITY MONITORING PLAN....................................................................................................................................32
EXHIBITF. RECLAMATION PLAN MAP........................................................................................................................................................45
EXHIBITG. WATER INFORMATION..............................................................................................................................................................49
EXHIBITH. WILDLIFE INFORMATION..........................................................................................................................................................53
EXHIBITI. SOILS INFORMATION..................................................................................................................................................................55
EXHIBITJ. VEGETATION INFORMATION.....................................................................................................................................................57
EXHIBITK. CLIMATE INFORMATION............................................................................................................................................................59
EXHIBITL. RECLAMATION COSTS................................................................................................................................................................61
EXHIBITM. OTHER PERMITS AND LICENCES..............................................................................................................................................99
EXHIBITN. SOURCE OF LEGAL RIGHT-TO-ENTER..................................................................................................................................101
EXHIBIT 0. OWNERS OF RECORD TO AFFECTED LAND(SURFACE AREA)AND OWNERS OF SUBSTANCE TO BE MINED...........103
EXHIBIT P. MUNICIPALITIES WITHIN TWO MILES................................................................................................................................105
EXHIBIT Q. PROOF OF MAILING OF NOTICES TO COUNTY COMMISSIONERS AND CONSERVATION DISTRICT..............................107
EXHIBIT R. PROOF OF FILING WITH COUNTY CLERK AND RECORDER................................................................................................109
EXHIBIT S. PERMANENT MAN-MADE STRUCTURES..............................................................................................................................111
MAY 2022 III AMENDMENT 6