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MONITORING CHART FOR 2013 AHR <br />SURFACE WATER LOCATION: 8 -1 <br />t Calcium f- Magnesium —f— Sodium <br />mg /L <br />90 <br />80 <br />70 <br />60 <br />50 <br />40 LZI <br />30 <br />20 <br />10 <br />0 <br />Mar '00 Jun '00 Mar '01 Jun '01 Jun '03 Jun '04 Jun '05 Jun '06 Jun '07 Jun '08 Aug '08 May'09 May'10 Apr '11 May'12 May'13 <br />Date <br />Oxbow Mining, LLC., Elk Creek Mine <br />Date : 28- Jan -14 <br />