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within and adjacent to <br />the permit area <br />below regarding the Division's review of the 2014 AHR <br />data and the PHC regarding surface and groundwater <br />hydrology impacts. <br />23. Prevention of <br />TC will need to address the sampling frequency issues <br />material damage to the <br />CDRMS regulation <br />identified in item numbers 11 and 16. Also, TC will need <br />hydrologic balance <br />4.05.1(1) <br />to evaluate the concerns identified in item number 24 <br />outside the permit area <br />below regarding the Division's review of the 2014 AHR <br />data and the PHC regarding surface and groundwater <br />hydrology impacts. <br />The Division compared the findings in the PHC contained in <br />section 2.05.6(3) of the permit to the 2014 AHR data. Also, <br />the projected hydrologic impact of concurrent ongoing <br />discharge from historic surface mined areas, and current and <br />proposed underground mining in the permit area is presented <br />in Exhibit 32 for surface water resources of the Trout Creek <br />basin. <br />Surface Water <br />Conductivity: <br />24. Agreement of <br />Field conductivity measures in 2014 for Fish Creek were <br />observed hydrologic <br />CDRMS regulation <br />below the 1,500 umhos/cm material damage standard <br />impacts with "probable <br />2.05.6(3) and <br />discussed in Exhibit 14 and on page 2.05-152. <br />hydrologic <br />requirement to keep <br />consequences <br />CDRMS <br />laConductivityat site 29for Middle Creek is below the <br />projected <br />regulation 2.03 3(1) <br />maximum level projected on page <br />in mining <br />Field Conductivity for the Trout Creek below Fish Creek was <br />modeled for mine impacts and according to page 2.05-155 <br />the highest conductivity level estimates was 964 umhos/cm. <br />Site 1005 monitors this reach of Trout Creek. One spike in <br />conductivity was measured on April 17, 2014. The <br />remainder of the samples in 2014 indicated conductivity <br />levels were below the highest projected levels. According to <br />the 2014 AHR Table 48A, the average field conductivity <br />measured at this site is below the highest level projected. <br />According to TC, this spike in conductivity may have <br />resulted from elevated spring runoff flush through the old <br />P&M mine area. <br />17 <br />