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2021 AHR Review: New Elk Mine <br /> Review of Annual Hydrology Report <br /> Mine: New Elk Mine Permit No: C1981012 <br /> Report Year: 2021 Date Received: 28 February 2022 <br /> Date Reviewed. 17 February 2023 Reviewed By: R.Reilley <br /> Submitted By. New Elk Coal Co.LLC <br /> Water Year: January 2021 through December2021 <br /> 1. Filing frequency of hydrology report <br /> CDRMS regulation 4.05.13(4)(c) <br /> The Annual Hydrology Report is required to be submitted yearly. <br /> 2. Timely filing of hydrology report <br /> CDRMS regulation 4.05.13(4)(c) <br /> The Annual hydrology Report is required to be submitted by 28 February and was received by the <br /> Division in a timely manner via electronic submittal. <br /> 3. Filing frequency of pond reports <br /> CDRMS regulation 4.05.9(17) <br /> See below <br /> 4. Timely filing of pond reports <br /> CDRMS regulation 3 4.05(17) <br /> Quarterly pond inspection reports were submitted to the Division in a timely manner. <br /> 5. Content of pond reports <br /> CDRMS regulation 4.05.9(15) <br /> DRMS determined that all required information was addressed on quarterly sediment pond inspections <br /> in 2021. <br /> 6. Filing frequency of NPDES Discharge Monitoring Reports <br /> NPDES permit CO- 0000906 <br /> Filling is monthly, and reports were relayed to DRMS in a timely manner. <br /> 7. Timely filing of Discharge Monitoring Reports <br /> NPDES permit CO- 0000906 <br /> Filling is monthly, and reports were relayed to DRMS in a timely manner. <br /> 8. Sampling frequency of NPDES outfalls <br /> NPDES permit CO- 0000906 Permit Table 27; Monitoring Frequency. <br /> It appears that frequency for sampling was complied with. <br /> 9. Parameters to be sampled for NPDES reporting <br /> NPDES permit CO- 0000906 Table 28; Water Quality Analysis Parameters respectively. <br /> Required field parameters for sampling comprise temperature (OC),flow(gpm),pH(std units), <br /> conductivity (µmhos). <br /> Page 1 of 6 <br />