Laserfiche WebLink
August 16, 2010 C-1982-056/Foidel Creek Mine JDM <br />HYDROLOGIC BALANCE -Rule 4.05 <br />?Drainage Control 4.05.1, 4.05.2, 4.05.3; Siltation Structures 4.05.5, 4.05.6; Discharge Structures 4.05.7, <br />4.05.10; Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring <br />4.05.13; Drainage - Acid and Toxic Materials 4.05.8; Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: <br />Ponds A, T, B, C, D, E, F, G, 6MN, 18LT, and the Fish Creek Tipple Pond were observed during the inspection. <br />The 6MN holding pond displayed a small amount of run-off water with no pumping from l ORT being conducted. <br />The following pond maintenance items and observations need to be addressed: <br />- The horizontal discharge pipe for the Fish Creek Tipple Pond displayed evidence of corrosion at the point where <br />the horizontal pipe meets the riser pipe. The corrosion damage is evident around the full circumference of the <br />pipe. TCC had begun the repair process at the time of the inspection. <br />- Yellow toadflax was observed on the embankment of the Fish Creek Tipple pond. <br />- Substantial thistle growth was observed on the embankments of the 6MN holding pond. <br />- Thistle growth was observed on the embankments of Ponds E, F and G <br />- Houndstounge was observed throughout the embankments of Pond B. <br />Ditches and culverts throughout the main facilities area and all outlaying areas were inspected for compliance. <br />The following maintenance items need to be addressed. <br />Culverts that will require maintenance: <br />- An unidentified culvert along an area of rock checks west of the access road within the Fish Creek Tipple pad <br />area will need to be identified or removed according to the Foidel Creek PAP. <br />- Two culverts along the access road to the 6MN site at the Fish Creek. <br />- The NWM Vent Fan culvert. <br />- Three culverts under the Fish Creek Borehole access road. <br />- The weld shop culvert. <br />- The E-1(b) culvert east of the shop. <br />- The culvert to Pond B sump. <br />- Culvert C-3 east of the batch-weigh station will need the approved sediment control measures in place. <br />- The small 8" pipe along the D-4 ditch under the south end of the coal stockpile . <br />Ditches <br />- Erosion on the ditch embankments of the Pad Drainage Ditch 1 at the Fish Creek Tipple will need to be <br />addressed in order to prevent run-off from leaving the ditch. <br />- An area of large amount of cattails was observed in the RDA-1 ditch. This area receives a substantial amount of <br />run-off from the west slope of the refuse area. The cattails and sediment buildup should be addressed to prevent <br />water from leaving the ditch. <br />- Non-coal waste or storage equipment should be removed from the RDA-1 ditch south of the refuse pile. <br />The drainage from the clay stockpile south of the storage area east of the Trudy's Corner SAE to the RDA-1 ditch <br />should be reestablished in the area where the access ramp gate is located. <br />Small rills were observed along the 6MN ditch to the collection pond and on the pond embankments. No <br />problems were noted, but the erosion should be monitored. <br />Number of Partial Inspection this Fiscal Year: 1 <br />Number of Complete Inspections this Fiscal Year: 1 <br />Page 3 of 8