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V W RESOURCE <br />L% HYDROGEOLOGIC <br />V SERVICES <br />• Remove Total Nitrogen as Nitrate -Nitrite — This parameter is useful to interpret and distinguish <br />agricultural impacts from blasting explosive impacts to groundwater in surface coal mining <br />operations. King II is an underground mine and GCC has not used nor plans to use explosives in <br />their operations. Four quarterly sample analyses for Seep -1 have established baseline total <br />nitrogen as nitrate -nitrite, which is interpreted to be a result of wildlife activity. <br />• Remove Ammonia (NH3) — This parameter was only intended for one-time collection during the <br />baseline period to establish absence. This parameter is useful to interpret and distinguish <br />agricultural impacts from blasting explosive impacts to groundwater in surface coal mining <br />operations. King II is an underground mine and GCC has not used nor plans to use explosives in <br />their operations. <br />• Remove Phosphate (PO4 as P) - This parameter was only intended for one-time collection during <br />the baseline period to establish absence. This parameter is useful to interpret and distinguish <br />possible impacts of general agriculture use versus fertilizer use for vegetation reclamation at <br />surface coal mines. King II is an underground mine and GCC has not used nor plans to use any <br />significant phosphate products. <br />GCC SW Compliance <br />• Remove Silica (Si02) — Comparison of TDS vs. sum of ions has been accomplished and this <br />parameter is no longer of interest with respect to monitoring for potential hydrologic impacts from <br />GCC or other historic mining impacts. <br />• Remove Mercury (Hg) — Four quarterly sample analyses for the two Hay Gulch Ditch sites have all <br />shown non -detect results so baseline characterization has been accomplished. <br />• Remove Total Nitrogen as Nitrate -Nitrite — This parameter is useful to interpret and distinguish <br />agricultural impacts from blasting explosive impacts to groundwater in surface coal mining <br />operations. King II is an underground mine and GCC has not used nor plans to use explosives in <br />their operations. Four quarterly sample analyses for the two Hay Gulch Ditch sites have <br />established baseline total nitrogen as nitrate -nitrite. <br />• Remove Ammonia (NH3) — This parameter was only intended for one-time collection during the <br />baseline period to establish absence. This parameter is useful to interpret and distinguish <br />agricultural impacts from blasting explosive impacts to groundwater in surface coal mining <br />operations. King II is an underground mine and GCC has not used nor plans to use explosives in <br />their operations. <br />• Remove Phosphate (PO4 as P) - This parameter was only intended for one-time collection during <br />the baseline period to establish absence. This parameter is useful to interpret and distinguish <br />possible impacts of general agriculture use versus fertilizer use for vegetation reclamation at <br />surface coal mines. King II is an underground mine and GCC has not used nor plans to use any <br />significant phosphate products. <br />• Remove Oil and Grease — Four quarterly sample analyses for the two Hay Gulch Ditch sites have <br />all shown non -detect results so baseline characterization has been accomplished. <br />GCC ENERGY, LLC <br />2016 ANNUAL HYDROLOGY REPORT <br />10 <br />