Laserfiche WebLink
MINREC, INC. <br />BLUE RIBBON MINE <br />IMPOUNDMENT YEARLY INSPECTION <br />In accordance with Rule 4.05.9(14), all impoundments shall be inspected at least yearly <br />to determine if the impoundment has been maintained as designed, and in accordance <br />with the approved plan and the applicable regulations. This yearly inspection is for the <br />impoundments located at the Blue Ribbon Mine. <br />On March 25, 2002, I performed the required yearly inspections. I, J, E. Stover, have a <br />wide variety experience in the design and construction of earth fill embankments. <br />Nothing was observed during the-inspection-that would-indicate the ponds have a-- <br />potential for failure. There was no appearance of erosion, instability, structural <br />weakness or other hazardous conditions. There are no required monitoring procedures <br />or instrumentation. There are no aspects which might affect stability and there is no <br />required maintenance. Ponds 3 and 4 were damp to dry. Pond 5 was impounding <br />water about 12-inches deep but it was below the level of the primary spillway. There <br />was no discharge from any of the ponds. <br />The ponds/impoundments have the following approximate capacities: <br />IMPOUNDMENT CAPACITIES -ACRE FEET <br /> Water Sediment Total <br />Pond 3 0.10 0.13 0.23 <br />Pond 4 0.06 0.08 0.14 <br />Pond 5 0.455 0.290 0.745 <br />Notes: <br />1. Sediment capacities are based on as-built pond configuration. Sediment <br />capacities may be less than shown in the table because of sediment <br />accumulation since the ponds were constructed. <br />2. The capacities of Pond 3 and Pond 4 were obtained from the PAP, page 106i. <br />Larry Reschke's 10-29-86 certification of pond 5 provided its capacity. <br />To the best of my <br />designed and in a <br />the impoundments have been maintained as <br />pCoved plan and applicable regulations. <br />a <br /> <br />-'~ <br />ate <br />r, ernes E. Stovei ?+ <br />Co'lo~,dg Professi Engineer <br />Regr~~i~i'i ~djof9230 <br />~..:.. <br />