Intended Construction Sequence East Brine Pond 1) Stabilize Construction Entrance 1 Use Existing < 1.0 2) Install Silt Fence Around Planned Disturbance 1 < 1.0 3) Construct Sediment Trap 1 < 1.0 4) Construct Temporary Diversion Swales (W/ECB lining) 1 2 < 1.0 5) Strip and Stockpile Topsoil (Surround Stockpile w/silt Fence) 2 6+ 6) Excavate Low Point in Future Pond 2 6+ 7) Install Soild Underdrain from Low Point to Sediment Trap 2 3 6+ 8) Install Leak Detection Drain Pipes w/vault 9) Install Temporary Riser on Under Drain 3 6+ 10) Extend Perforated Under Drain from Riser to West End of Pond 3 6+ 11) Begin Fill Placement to Construct Berm Embankment 3 6+ 12) Install Silt Fencing on Outside of Embankment (50' max spacing) 3 4 6+ 13) Exterior Construct Pump Station and Install Piping 4 5 6+ Exterior Remove Sections of Silt Fence; Spread Topsoil, Seed and Apply 14E ECB 5 7 6+ Exterior Convert Temp Diversion Swales to Perm Grassed Swales (After 15E Sediment Removal) 8 4 Exterior Convert Sediment Trap to Open Channel (After Sediment 16E Removal) 9 4 14I Interior Excavate to Pond Bottom 4 6 4 15I Interior Install Silt Fence Around Toe of Interior Slope 6 4 16I Interior Install Trench Drains in West Interior Slope 7 4 17I Interior Finish Grade Sloped Surfaces 8 9 4 18) Install Geomembranes and Geocomposite 9 11 0 19) Remove Perimeter Silt Fence Upon Stabilization 0
Intended Construction Sequence Office Area / Surface Facility 1) Stabilize Construction Entrance Completed 0.25 acres 2) Install Silt Fence Upslope from Wetland 12 0.35 acres 3) Install Dry Pond 12 1.0 acres Install Dry Pond Outlet Structure Including Sediment Basin 4) Requirements 14 1.0 acres 5) Seed Dry Pond inside and outside slopes 14 6) Install Wet Swale 14 2.0 acres 7) Install Wet Swale Check Dams 15 2.0 acres 8) Install Wet Swale "V" Notch Weir 16 2.0 acres 9) Seed All Stormwater Structures 16 10) Install Diversion Swales Upslope from Office 16 2.5 acres 11) Seed Diversion Swales 16 12) Remove Topsoil from Office Area seed topsoil pile 17 4.0 acres 13) Grade Office Area 17 4.0 acres 14) Seed Office Area 18 15) Remove Topsoil from Staging Area 18 5.5 acres 16) Grade Staging Area and associated swales 18 5.5 acres 17) Seed Swales and Staging Area 19 18) Place Gravel and Pavement on Office Area and Staging Area 19 19) Reseed entire Office Area Site as needed 20 20) Rework dry pond to transition to post construction Upon Stabilization 0 21) Remove Silt Fence Upon Stabilization 0
Intended Construction Sequence Plant Area 1) Stabilize Construction Entrance 2) Install Silt Fence Surrounding Site Use Existing 13 0.35 acres 3) Excavate for Footings 13 0.5 acres 4) Install Structures and Fine Grade 13 16 0.5 acres 5) Reseed entire Plant Area Site as needed 17 6) Remove Silt Fence Upon Stabilization 0
Intended Construction Sequence Run Around Track 1) Stabilize Construction Entrance Use Existing 2) Installation of Fill and Grading North Track Area and Swale 17 0.5 acres 3) Seeding and Erosion Control Blanket on North Track Area 17 4) Installation of Fill and Grading Central Track Area and Swale 18 1.5 acres 5) Seeding and Erosion Control Blanket on Central Track Area 18 6) Installation of Fill and Grading South Track Area and Swale 19 2.2 acres 7) Seeding and Erosion Control Blanket on South Track Area 19 8) Installation of Infiltration Material in the bottom of the swale 20 9) Final Seeding 21
Intended Construction Sequence West Brine Pond 1) Stabilize Construction Entrance 1 < 1.0 2) Install Silt Fence Around Planned Disturbance 1 < 1.0 3) Construct Sediment Trap 1 < 1.0 4) Construct Temporary Diversion Swales (W/ECB lining) 1 2 < 1.0 5) Strip and Stockpile Topsoil (Surround Stockpile w/silt Fence) 2 10+ 6) Excavate Low Point in Future Pond 2 10+ 7) Install Soild Underdrain from Low Point to Sediment Trap 2 3 10+ 8) Install Leak Detection Drain Pipes w/vault 9) Install Temporary Riser on Under Drain 3 10+ 10) Extend Perforated Under Drain from Riser to West End of Pond 3 10+ 11) Begin Fill Placement to Construct Berm Embankment 3 10+ 12) Install Silt Fencing on Outside of Embankment (50' max spacing) 3 4 10+ 13) Exterior Construct Pump Station and Install Piping 4 6 10+ 14E Exterior Remove Sections of Silt Fence; Spread Topsoil, Seed and Apply E 6 8 10+ 15E Exterior Convert Temp Diversion Swales to Perm Grassed Swales (After S 9 7 16E Exterior Convert Sediment Trap to Open Channel (After Sediment Remo 10 7 14I Interior Excavate to Pond Bottom 5 8 7 15I Interior Install Silt Fence Around Toe of Interior Slope 8 7 16I Interior Install Trench Drains in West Interior Slope 8 7 17I Interior Finish Grade Sloped Surfaces 9 11 7 18) Install Geomembranes and Geocomposite 11 13 0 19) Remove Perimeter Silt Fence Upon Stabilization 0
Intended Construction Sequence Rail Siding / Surface Facility 1) Stabilize Construction Entrance Use Existing Office Area 2) Install Wet Pond 20 1.0 acres Install Wet Pond Outlet Structure Including Sediment Basin 3) Requirements 20 1.0 acres 4) Seed Wet Pond inside and outside slopes 21 5) Install Swales to Capture Track Runoff 21 2.0 acres 6) Seed All Stormwater Structures 21 2.0 acres 7) Remove Topsoil from Rail Siding Area seed topsoil pile 22 2.0 acres 8) Grade Rail Siding Area 22 9) Place Gravel and Rails on Rail Siding Area 23 2.5 acres 10) Reseed entire Office Area Site as needed 23 11) Rework wet pond to transition to post construction Upon Site Stabilization
Intended Construction Sequence Pipeline Construction 1) Stabilize Construction Entrance (Use existing where possible) 10 < 1.0 ac 2) Pipeline Clearing 10 14 3) Silt Fence Installation 10 14 4) Pipeline Grubbing / Water Bar Installation 11 15 15.4 ac 5) Pipeline Installation 12 20 15.4 ac 6) Right of Way Seeding 14 21 varies