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Table 1 <br />Seneca ll -West Slump /Slide Areas Not Planned for Stabilization <br />In area previously <br />Location <br />Description <br />Mined /disturbed? <br />mapped as <br />Repair? <br />Explanation <br />LS /US /PUS /MF /DF? <br />West end of Pit D, north <br />Length approx. 1400 ft. Scarp <br />Crosses reclaimed <br />highwall side <br />height varies from crack with no <br />and undisturbed <br />No <br />No <br />North Area <br />(Stock Tank 20) <br />displacement to —20 ft. <br />No structures are threatened. <br />Southern highwall of C•Pit <br />Settlement cracks along <br />Yes <br />Yes (LS, Madole <br />N0 <br />Repair /regrading /stabilization activity <br />Stock Tank 18) <br />highwall <br />surficial map) <br />would compact soil and slow or prevent <br />revegetation <br />B Pit highwall <br />Several settling cracks, two <br />Yes <br />No <br />No <br />small slumps <br />East end of A Pit <br />Two slides <br />Yes <br />Yes (LS, Madole <br />surficial map) <br />No <br />Cut slope above LU -2 <br />Soil creep <br />Yes <br />Yes (LS, Madole <br />surficial map) <br />No <br />Operator proposes reclamation of LU -2 <br />Central <br />Pond 006 — east (inlet side) <br />Two slides <br />Yes <br />Yes (LS, Madole <br />N0 <br />Road to be realigned eastward, away <br />Area <br />corners of pond <br />surficial map) <br />from pond inlet slide areas. <br />Pond 006 (Haul Road A <br />Yes (LS, Madole <br />Operator is narrowing haul -oad, which <br />between pond and facilities <br />Several smaller slides <br />Yes <br />surficial map) <br />Yes <br />will repair surface slides between pond <br />area) <br />and facilities area. <br />Pond 006 (Slope between <br />Yes (LS, Madole <br />Operator proposes road realignment <br />shop, Haul Road A, and Pond <br />Several small slides <br />Yes <br />surficial map) <br />Yes <br />and reducing slope angle tc increase <br />006) <br />stability. <br />Ridgeline Access Road <br />Yes (US /PUS by <br />Undisturbed area of pre - existing <br />(LU -5) <br />Large, low -angle slide <br />No <br />Miller) <br />No <br />instability. Operator to repair road as <br />necessary. <br />South <br />Haul Road K <br />Small slide <br />Yes <br />No <br />No <br />No structures are threatened. <br />Area <br />Repair /regrading /stabilization activity <br />Pond 017 <br />Slump and 150 ft. linear crack <br />Crosses disturbed and <br />No, but adjacent to <br />N0 <br />undisturbed <br />Colton LS <br />would compact soil and slow or prevent <br />revegetation <br />North slope above PM -3 <br />Two small slumps <br />Yes <br />Yes (MF by Miller) <br />No <br />