Laserfiche WebLink
April 21, 2014 C- 1981- 012/New Elk Mine LDS <br />Figure 1: Approximate location of the Bosque del Oso State Wildlife Area boundary at the <br />western end of the New Elk min <br />HYDROLOGIC BALANCE - Rule 4.05 <br />Drainage Control 4.05.1, 4.05.2, 4.053; Siltation Structures 4.05.5, 4.05.6; Discharge Structures 4.05.7, 4.05.10; <br />Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13; <br />Drainage — Acid and Toxic Materials 4.05.8, Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: <br />North of the highway <br />The eastern end of the RDA upland diversion was inspected. The ditch had been compacted with three <br />passes of a dozer. (The design of the ditch is the subject of TR69, which is in progress). <br />The cell -phone tower SAE had been seeded and mulched. A water bar /check dam had been constructed <br />across the light -use road with the aim of preventing sediment from collecting in the diversion ditch below. <br />The surface of the upper section of the light -use road beside the RDA conveyor had suffered a little from <br />the recent precipitation, however the water bar had done an excellent job of diverting all the run -off into C41. <br />Below C41 sediment has been captured by a couple of rows of straw bales before the water ends up in the <br />containment next to the highway. The bales appeared to have been very effective at reducing the frequency with <br />which the containment needs to be cleaned. <br />Pond 8 was quite full but was not discharging. The repair of the erosion on the bank between the conveyor <br />junction and pond 8 has been put on hold until the ground is drier. Although the improvements to the surface water <br />scheme above this point should prevent the damage from worsening, the erosion is severe enough that it will not <br />self - repair on the timescale of a mine permit, so NECC should plan to carry out repairs at a convenient time. <br />Number of Partial Inspection this Fiscal Year: 6 <br />Number of Complete Inspections this Fiscal Year: 4 <br />Page 4 of 23 <br />