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16. In reviewing the Pond HC Plan View and Section B-B' Shaft Sediment Pond on Map 39, <br />what is to prevent surface runoff from the Hubbazd Creek road ditch or from the <br />adjoining azea from entering sediment pond HC through the emergency spillway? <br />17. Please provide a copy of the NPDES permit for pond HC when it is obtained. As a <br />reminder, if the NPDES permit only pertains to the treatment of surface runoff, then no <br />ground water that is encountered in the construction of the vent shaft or mine water can <br />be treated in the sediment pond. <br />18. In the Elevation-Capacity-Dischazge Table on page Exh-8-217, the azea is designated as <br />being in acres but the values appeaz to be in squaze feet. Likewise, in the same table, the <br />capacity is listed as being in acre-feet but the values appeaz to be in cubic feet. Please <br />clarify. <br />Rule 4.05.2 -Water Ouality Standards aad Effluent Limitations <br />19. What plan will BRL use to deal with any water encountered during construction, either <br />from ground water or from the rock drill water used in construction? <br />If you have any questions, please call me. <br />Sincerely, <br />~u-a°"r~ <br />osep J. )~i dash <br />Environmental Protection Specialist <br />cc: Jim Stover P.E.(J.E. Stover & Associates) <br />c:\word\bowie2\tr47adeq 1 <br />4 <br />