Laserfiche WebLink
Ninth Technical Revision(TR09)to Permit M-1973-021,Holcim-WCR,Inc. Morrison Quarry <br /> away from the highwall. The diversion will flow north parallel to the highwall along an <br /> inactive bench at a mild slope and then travel down a steeper chute slope, referred to as the <br /> diversion channel chute, to outlet to the South Quarry drainage area along the installed west <br /> quarry haul road. <br /> • West Quarry and West Quarry Haul Road: Runoff from the West Quarry will be conveyed <br /> into the South Quarry via the West Quarry Haul Road drainage structures. Water is <br /> conveyed via West Quarry Haul Road where it discharges to Outfall 003 or collects in the <br /> low point of the South Quarry during high flow events. <br /> • During mining, runoff that collects at the low point of the South Quarry is allowed to either <br /> infiltrate or is pumped to Outfall 006 within 72 hours. <br /> • Once mining and reclamation of the South Quarry are complete, the South Quarry final <br /> grading will be at a 3% slope southwest to northeast to convey stormwater to Outfall 003 for <br /> discharge. <br /> Outfall 003 discharges to Unnamed Drainage#1 and Outfall 006 discharges to Unnamed Drainage <br /> #2, both downstream of the Quarry. Both of the drainages flow into Turkey Creek, approximately 1 <br /> mile downstream of the outfall locations. <br /> October 2023 1 19 <br />