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Executive Summary <br />American Soda, L.L.P. is submitting this 36th Quarterly Ground Water Monitoring <br />Report in compliance with E.P.A. U. I. C. Area Permit C03858-00000 Final <br />Modification No. 9 (March 31, 2005), MLRB Hard Rock Mining Operation Permit <br />No. M-99-002 (Technical Revision No. 4), and U. S. B. L. M. Sodium Lease Nos. <br />C-0118328 and C-0118329 Record of Decision. The data presented in this <br />document represents the time period from July 1, 2009 through September 30, <br />2009. The Piceance processing plant and well field were in temporary <br />suspension of production operations status and no solution mining activity <br />occurred during the report period. <br />The current reporting period hydrologic monitoring program for the Yankee Gulch <br />Sodium Minerals Project includes monitoring of eight key metals and 14 wet <br />chemistry constituents from 22 sampling locations including five separate water <br />bearing zones. Sampling points are positioned up gradient, down gradient, <br />cross gradient, and in-panel in relation to the mining activity. Recording of water <br />elevations and field parameters is completed in conjunction with collection of the <br />water quality samples from each well. As a result of the high solids content of <br />the dissolution aquifer, sampling is only reliably successful at one dissolution <br />sample point. The completion of this well (21-3D) is in the upper portion of the <br />dissolution aquifer where dissolved solids are somewhat less concentrated. <br />Water levels in all three dissolution surface monitoring wells are being manually <br />measured and recorded on a quarterly basis. One down stream private <br />domestic ground water well (BURKE) is also sampled quarterly. <br />Before American Soda commenced mining operations in 2000, fifteen months of <br />baseline ground water data was collected. The current quarter monitoring data <br />for each well is summarized in a two page table per well in this document. The <br />current monitoring period is shown beside the last two monitoring periods for <br />comparison. Not only is the raw data for the three reporting periods included, but