Laserfiche WebLink
Executive Summar <br />American Soda, C.C.P. is submitting this bUth Quarterly Ground Water Monitoring Report <br />in compliance with E.P.A. U. I. C. Area Permit CO3858-00000 Final Modification No. 9 <br />(lVlaarLh 31, ZUU5), MLRB Rard Ruck Mining uperation Permit Ido. M-99-UUZ (I ti-nnical <br />Revision No. 4), and U. S. B. C. M. Sodium Cease Nos. C-0118328 and C-0118329 Record of <br />Decision. The data prCJcntCd in this ducurnEnt represents the time period from 7uly 1, <br />ZU15 tHrougH September 30, 2015. I he Pieeance processing plant and well tield were in <br />temporary suspension of production operations status and nu sulutiun mining aLtivrty <br />Uccurred during the report period. <br />The Hydrologic monitoring program for the current reporting period at the YanRee Gulch <br />Sudium Minerals Project includes munituring of eight key metals and 14 wet chemistry <br />constituents trom ZZ sampling locations inclading tive separate water Bearing zones. <br />Sampling pints are pusitiuncd up gradient, duwn gradient, truss gradient, and in-paancl <br />in relatiurn to the mining activity. Recording of water elevations and tield parameters is <br />completed in conjunction with collection of the water quality samples from each well. As <br />a result of the RigFi sulids cuntent UT tRe dissulutiun aquiter, sampling is only reliably <br />saccesstul at one dissolution sample point. The completion of this well (21-313) is in the <br />upper portion uf the dissulutiun aquifer where dissulved solids are somewhat less <br />concentrated. Water levels in all three dissolution surfface monitoring wells are being <br />manually measured and recorded on a quarterly basis. une down- stream private <br />domestic ground water well (BURKE) is also sampled quarterly. <br />Before American Soda cummencEd mining uperatiuns iii 20u0, fifteen months of baseline <br />gruund water data was collected. I He Warrent quarter monitoring data for eacH well is <br />summarized in a one page table per well in this document. Not only is the raw data for <br />the present reporting period included, but also regulator y standards and statistics are <br />shown for comparison and, additionally, Baseline and operational statistics are calculated <br />fur all data prior to the reporting periud. Luluradu Divisiun of Reclamatiun and Mine <br />