2018-08-22_REVISION - M1977493 ‎(7)‎

• Permit No: M1977493
• IBM Index Class Name: Revision
• Doc Date: 8/22/2018
• Doc Name Note: Part 3 of 3
• Doc Name: Request for Technical Revision
• From: Climax Molybdenum Company
• To: DRMS
• Type & Sequence: TR28
• Email Name: ECS
• Media Type: D
• Archive: No

Robinson Lake Operating Plan
Version R1
Climax Molybdenum Company
Permit M-1977-493
TABLE OF CONTENTS
1.0
OVERVIEW.....................................................................................................................1
2.0
BASIS AND ASSUMPTIONS..........................................................................................1
2.1 Probable Maximum Precipitation..........................................................................1
2.2 100 -Year Snowmelt.............................................................................................1
2.3 Seepwater Inflow.................................................................................................1
2.4 Operating Return Flows.......................................................................................1
2.5 Robinson Lake Surcharge Storage Capacity........................................................2
3.0
NORMAL OPERATING CONDITIONS...........................................................................2
4.0
PMP EVENT CONDITIONS............................................................................................3
5.0
OPERATING CRITERIA.................................................................................................3
6.0
FACILITY MONITORING AND CONTROL SYSTEMS
...................................................4
6.1 Robinson Lake.....................................................................................................4
6.2 Robinson Lake Pump Station...............................................................................4
6.3 Robinson Dam.....................................................................................................4
6.4 Robinson Lake Seepage Pump System...............................................................5
6.5 4 Dam Seepage Collection and Pump System.....................................................5
7.0
CONTINGENCY PLAN...................................................................................................5
8.0
REPORTING...................................................................................................................6
LIST OF FIGURES
Figure 1 — Normal Drainage Basin Map
Figure 2 — PMP Drainage Basin Map
EPP — Appendix D December 2011 i