2013-08-07_REPORT - C1981038 (2)

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Page 2 of 2 in these shallow wells. 5. Groundwater point of compliance: A groundwater point of compliance was not established for the Bowie No. 1 Mine, based on existing groundwater quality and use, and a prediction in the Probable Hydrologic Consequences section of the permit application package that mining will not likely have a negative effect on groundwater quality. 6. Springs, Ponds, and Ponds with Springs: Springs 14 -4 and 32 and Ponds 10 -2, 10 -3, 10 -7, 10 -9, 10- 14, and 15 -1 are also showing higher than historic values or are on the high end of the historic range for chloride, TDS, SAR, sodium, magnesium, and manganese. This too may be a reflection of ongoing drought conditions. 7. Surface water flows were within historic ranges and consistent with precipitation for the year. 8. Surface water quality: Surface water quality was consistent with historic data and with the predictions in the Probable Hydrologic Consequences section of the approved permit application package. 10. No NPDES effluent limits were exceeded in 2012. Annual Mine Inflow Report The report included all of the information required by Rules 4.05.13(1) and (4) and the approved monitoring plan. Inflows were not observed or reported since the mine portals have been sealed; the Division has no questions or comments at this time. Semi - Annual Subsidence Monitoring Reports The report included all of the information required by Rule 2.05.6(6) and the approved permit application package. Monitoring, now limited to seven points along the Pitkin Mesa pipeline, shows minimal movement at any of the monitoring points. The Division appreciates BRL submitting the annual reports in a timely manner. If you have any questions or need additional information, please contact me. Sincerely, Susan L. Burgmaier Environmental Protection Specialist cc: Jim Stover, J.E. Stover & Associates