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AMERICAN <br />David Valvoda <br />ASODA, L.L.P. Planu IDlanager <br />2/'1 i Coaiity HoaO 2'15 Telephone (970) 285-6500 <br />Pararnute, U0 81635 Facsimile (970) 285-6393 <br />Thursday, October 29, 2015 <br />Mr. i ravis Marshall <br />Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining and Satety <br />vrand Junctiun Field Uffice <br />101 Third Street Suite 310 <br />Grand Junction, CU 81501 <br />Dear Mr. Marshall: <br />EIvvUZ5.I5 <br />Enclosed is one Bound copy of American Soda's 60th Quarterly Report in compliance with Hard Rode <br />Mining Operation Permit No. M-99-UUZ. One un6uund cupy ut tnle doe-ument will also Be sent to the <br />Denver office of LORIVIS to the attentiun of Michelle Ramirez fur clectrunic sunning. i hCsC <br />documents include environmental ground water monitoring data collected and compiled during our <br />bUth quarter ut uperatiuns (September Z015). Mu sulutiun mining activity uccurred during the repurt <br />period. <br />i he ground water data summa, y rcpurt is spiral bound as a nun-cunfidentidl ducumcnt and in eludes a <br />comparison of the 60th operational quarter with, Baseline and operational general statistics prior to the <br />current reporting period. In addition, the taules pruvide inturmatiun tor cumpparisun of Gruund water <br />Standards as provided in Regulation Mu. 41 and Numeric Prutuctivu Levels and Early Warning Indicators <br />as amended in TR -4. <br />Lumparisun of the data values with the Carly warning Inclicaaturs (EWI) and the Numeric Protective <br />Levels (NPL) indicates no data values above the calculated EWI or NPC during the report period. TFiis <br />inturmatiun is summarized in the Executive Summary ut the Gruund water Plunituring repurt. <br />WorR to complete the plugging and abandonment of all remaining production wells was completed in <br />September and Octu6er 2015 as sRuwn in the tulluwing table summary: <br />Narura/ Solium Proaucss For A Cleaner Environmenc <br />