2017-02-08_REPORT - M1983194

• Permit No: M1983194
• IBM Index Class Name: REPORT
• Doc Date: 2/8/2017
• Doc Name: Annual Fee/Report/Map
• From: Natural Soda, LLC
• To: DRMS
• Annual Report Year: 2017
• Email Name: THM
• Media Type: D
• Archive: No

Natural Soda LLC 2016 Project Status Report & Annual Plan of Development
Table of Contents
' 1.0 Introduction and Project Summary.................................................................. 1
2.0 Description of Project Area..............................................................................
' 2.1 Location and Regional Setting................................................................... 1
2.2 Leasehold Status....................................................................................... 6
' 3.0 Project Status.................................................................................................. 6
3.1 2016 Project Activities (Confidential) ......................................................... 6
3.1 .1 Items of Significance (Confidential) ....................................................... 6
' 3.1 .2 Cavity Production (Confidential) ............................................................ 7
3.1 .3 2016 Monthly Production Tons Summary (Confidential) ....................... 7
3.1 .4 Regulatory Review (Confidential) ..........................................................8
3.2 Proposed 2017 Activities and Schedule (Confidential) .............................. 9
3.2.1 Processing (Confidential) ...................................................................... 9
' 3.2.2 Well field (Confidential).......................................................................... 9
3.2.3 EPA Notification — 2017 Schedule of planned Mechanical Integrity Test
' (MIT) (Confidential).............................................................................. 10
3.2.4 EPA Notification — 2017 Schedule of planned SSMW Logging
(GR/CCL) (Confidential) ...................................................................... 10
' 4.0 2015 Project Activities................................................................................... 11
4.1 On-Site Facilities and Process Description.............................................. 11
' 4.1 .1 General Arrangement.......................................................................... 11
4.1 .2 Lab Operation / Sanitation / ISO.......................................................... 11
4.1 .3 Process, Utilities, Facilities.................................................................. 11
' 4.1 .4 Wells Associated With the NS Project (Confidential) ........................... 13
4.1 .5 Other Activities .................................................................................... 13
' 4.2 New Findings or Developments (Confidential) ......................................... 17
4.3 2016 Operation Results (Confidential)...................................................... 17
4.4 Geotechnical Program ............................................................................. 19
' 4.4.1 Subsurface Subsidence Geophysical Logging .................................... 19
4.4.2 Surface Subsidence Monitoring........................................................... 19
4.5 Water Well Pumpage............................................................................... 19
5.0 Environmental Monitoring and Protection...................................................... 21
' 5.1 Hydrology Monitoring............................................................................... 21
5.1 .1 Introduction.......................................................................................... 21
5.1 .2 Stream Gauging Stations .................................................................... 21
' 5.1 .3 Monitoring Wells.................................................................................. 23
5.1 .4 Process Ponds .................................................................................... 23
' 5.1 .5 Potentiometric Surface Maps (Confidential) ........................................ 23
tDAUB&ASSOCIATES, INC. ii January 2017