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Privileged and Confidential—Attorney Client Communication Geosyntee''' consultants design assumptions for each process listed in Table 9. The system design assumes gravity flow through the process after the initial pumping into the Hybrid MWP. Table 9:Pilot-Scale Design in the Work Plan Design Recommendations in‘York Plan • OSMI rented a unit that is a pre-engineered 10 to 20 gpm pilot- Hybrid MWP scale mobile unit with chemical feed,coagulation,flocculation, and sedimentation treatment capabilities(See Appendix B) • Two 55-gallon barrels in parallel Aerobic • Volume: approximately 14 ft3(the size of this wetland will be Wetland* dependent on reconfiguration of MWP) • Materials of construction: sand/gravel mixture,native wetland vegetation • At least a 3,000-gallon tank • Depth: —7 feet • Locally sourced materials of construction: 5%manure,30% SRB Tank 1 woodchips (potentially beetle-kill), 15%hay,20%limestone,30% gravel • Effluent piping needs to be constructed to hold 6 to 12 inches of water on top of the SRB material mix at all times to keep SRB anaerobic • At least a 3,000-gallon tank • Depth:—7 feet • Locally sourced materials of construction: 5%manure,30% SRB Tank 2 woodchips(potentially beetle-kill), 15%hay,20%limestone,30% gravel • Effluent piping needs to be constructed to hold 6 to 12 inches of water on top of the SRB material mix at all times to keep SRB anaerobic • Two 275-gallon totes for each train • Volume of each train: approximately 72 ft3 Anaerobic Wetlands 1 and 2* • Materials of construction: sand/woodchip/corn stover mixture, native wetland vegetation • Install piping to keep anaerobic at all times Aerobic Wetland • Two 55-gallon barrels for each train Polishing and • Volume of each train: approximately 14 ft3 Outfall 002A* 1'reatahilitc l estin2 Report 16 December 11,2018