2022-04-05_REVISION - M1977342

• Permit No: M1977342
• IBM Index Class Name: Revision
• Doc Date: 4/5/2022
• Doc Name: Adequacy Review Response
• From: Climax Molybdenum
• To: DRMS
• Type & Sequence: TR35
• Email Name: PSH
• Email Name: JLE
• Media Type: D
• Archive: No

Climax Molybdenum Company
Permit No.1977-342 Technical Revision (TR-35)
TABLE OF CONTENTS
1. INTRODUCTION.............................................................................................................................................1
2. PROJECT DESCRIPTION..............................................................................................................................2
2.1 Plant Location and Site Layout.............................................................................................................3
2.2 WTP Primary Treatment Processes .....................................................................................................4
2.2.1 Solids Handling and Sludge Disposal......................................................................................5
2.2.2 Process Control Strategy.........................................................................................................5
2.3 Reagents...............................................................................................................................................6
2.3.1 Unloading Stations...................................................................................................................6
2.3.2 Lime System ............................................................................................................................6
2.3.3 Polymer Flocculent...................................................................................................................6
2.3.4 Carbon Dioxide ........................................................................................................................6
2.4 Ancillary Facilities..................................................................................................................................7
2.4.1 Pipelines...................................................................................................................................7
2.4.2 Water and Sanitary Sewer.......................................................................................................7
2.4.3 Power and Utilities ...................................................................................................................8
2.4.4 Roads and Access...................................................................................................................8
2.4.5 Point of Discharge....................................................................................................................8
2.5 Project Schedule...................................................................................................................................8
2.6 Construction Quality Control/Quality Assurance...................................................................................9
3. OTHER AGENCY PERMITS AND AUTHORIZATIONS..............................................................................10
3.1 Air Permit ............................................................................................................................................10
3.2 Grand County Activity of State Interest...............................................................................................10
3.3 Grand County Building Permits...........................................................................................................10
3.4 Grand County Septic Permit...............................................................................................................10
3.5 Potable Water Treatment System.......................................................................................................10
3.6 Construction Storm Water Permit.......................................................................................................11
List of Diagrams and Figures
Diagram 1. Water Treatment Plant Process Diagram
Figure 1. Henderson Mill Site Plan and WTP Location
Appendices
APPENDIX A: WTP Design Drawings
530-DD10-PLN-601 Site Civil and Underground Piping Plan
530-DD10-PLN-602 Site Layout Paving and Grading Plan
530-DE10-GAD-101 General Arrangement Plan
530-DE10-GAD-102 General Arrangement Section
530-DD10-PLN-401 Non-Process Area Floor Plan
530-DC00-PFD-101 Process Flow Diagram Sheet 1
530-DC00-PFD-102 Process Flow Diagram Sheet 2
April 2022 i