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2717 County Road 215 <br />Parachute, CO 81635 <br />AMERICAN <br />SODA, L.L.P. <br />Wednesday, October 26, 2011 <br />Mr. Travis Marshall <br />Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining and Safety <br />Grand Junction Field Office <br />101 Third Street, Suite 310 <br />Grand Junction, CO 81501 <br />Dear Mr. Marshall: <br />- � 6V( -C9OZ <br />RECEMS <br />Division of Reclamation, <br />Mining and Safety <br />Todd Wilson <br />Plant Manager <br />Telephone (970) 285 -6500 <br />Facsimile (970) 285 -6393 <br />EEIEO <br />OCT 2 7 2011 1 7 <br />GRAND JUNCTION F:ELD OFFICE <br />RECLAMATION MINING & SAFETY <br />ENV031.11 <br />Enclosed are two copies of American Soda's 44 Quarterly Repod in compliance with Hard Rock <br />Mining Operation Permit No. M -99 -002. One copy of the document is not bound so it can easily be <br />electronically scanned. These documents include environmental ground water monitoring data <br />collected and compiled during our forty - fourth quarter of operations (September 2011). No solution <br />mining activity occurred during the report period. <br />The ground water data summary report is spiral bound as a non - confidential document and includes a <br />comparison of the 44 operational quarter with baseline and operational general statistics prior to the <br />current reporting period. Constituents from the expanded parameter list are included during the <br />quarter. In addition, the tables provide information for comparison of Ground Water Standards as <br />provided in Regulation No. 41 and Numeric Protective Levels and Early Warning Indicators as <br />amended in TR -4. <br />Comparison of the data values with the Early Warning Indicators (EWI) and the Numeric Protective <br />Levels (NPL) indicates no values above the calculated EWI or NPL during the report period. This <br />information is summarized in the Executive Summary of the Ground Water Monitoring report. <br />In addition to the ground water monitoring, herbicide application to control noxious weed populations <br />and annual bench mark surveying for subsidence was completed during the quarter. <br />Subsidence is monitored at nineteen bench mark survey locations established in a grid across the 0 — <br />5 year panel of the well field. Previously there were 20 bench mark locations but one was destroyed <br />recently during the installation of a natural gas pipeline. Each of these locations is surveyed annually. <br />The data from the initial baseline survey is plotted with the 2011 survey data for each point in the <br />following chart. The marker elevations for the baseline period compared with 2011 data indicate no <br />significant changes. <br />Natural Sodium Products For A Cleaner Environment <br />