Intended Construction Sequence East Brine Pond

Transcription

1 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) ) Excavate Low Point in Future Pond ) Install Soild Underdrain from Low Point to Sediment Trap ) Install Leak Detection Drain Pipes w/vault 9) Install Temporary Riser on Under Drain ) Extend Perforated Under Drain from Riser to West End of Pond ) Begin Fill Placement to Construct Berm Embankment ) Install Silt Fencing on Outside of Embankment (50' max spacing) ) Exterior Construct Pump Station and Install Piping Exterior Remove Sections of Silt Fence; Spread Topsoil, Seed and Apply 14E ECB 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) I Interior Excavate to Pond Bottom I Interior Install Silt Fence Around Toe of Interior Slope I Interior Install Trench Drains in West Interior Slope I Interior Finish Grade Sloped Surfaces ) Install Geomembranes and Geocomposite ) Remove Perimeter Silt Fence Upon Stabilization 0

2 Intended Construction Sequence Office Area / Surface Facility 1) Stabilize Construction Entrance Completed 0.25 acres 2) Install Silt Fence Upslope from Wetland acres 3) Install Dry Pond acres Install Dry Pond Outlet Structure Including Sediment Basin 4) Requirements acres 5) Seed Dry Pond inside and outside slopes 14 6) Install Wet Swale acres 7) Install Wet Swale Check Dams acres 8) Install Wet Swale "V" Notch Weir acres 9) Seed All Stormwater Structures 16 10) Install Diversion Swales Upslope from Office acres 11) Seed Diversion Swales 16 12) Remove Topsoil from Office Area seed topsoil pile acres 13) Grade Office Area acres 14) Seed Office Area 18 15) Remove Topsoil from Staging Area acres 16) Grade Staging Area and associated swales 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

3 Intended Construction Sequence Plant Area 1) Stabilize Construction Entrance 2) Install Silt Fence Surrounding Site Use Existing acres 3) Excavate for Footings acres 4) Install Structures and Fine Grade acres 5) Reseed entire Plant Area Site as needed 17 6) Remove Silt Fence Upon Stabilization 0

4 Intended Construction Sequence Run Around Track 1) Stabilize Construction Entrance Use Existing 2) Installation of Fill and Grading North Track Area and Swale acres 3) Seeding and Erosion Control Blanket on North Track Area 17 4) Installation of Fill and Grading Central Track Area and Swale acres 5) Seeding and Erosion Control Blanket on Central Track Area 18 6) Installation of Fill and Grading South Track Area and Swale 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

5 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) ) Excavate Low Point in Future Pond ) Install Soild Underdrain from Low Point to Sediment Trap ) Install Leak Detection Drain Pipes w/vault 9) Install Temporary Riser on Under Drain ) Extend Perforated Under Drain from Riser to West End of Pond ) Begin Fill Placement to Construct Berm Embankment ) Install Silt Fencing on Outside of Embankment (50' max spacing) ) Exterior Construct Pump Station and Install Piping E Exterior Remove Sections of Silt Fence; Spread Topsoil, Seed and Apply E E Exterior Convert Temp Diversion Swales to Perm Grassed Swales (After S E Exterior Convert Sediment Trap to Open Channel (After Sediment Remo I Interior Excavate to Pond Bottom I Interior Install Silt Fence Around Toe of Interior Slope I Interior Install Trench Drains in West Interior Slope I Interior Finish Grade Sloped Surfaces ) Install Geomembranes and Geocomposite ) Remove Perimeter Silt Fence Upon Stabilization 0

6 Intended Construction Sequence Rail Siding / Surface Facility 1) Stabilize Construction Entrance Use Existing Office Area 2) Install Wet Pond acres Install Wet Pond Outlet Structure Including Sediment Basin 3) Requirements acres 4) Seed Wet Pond inside and outside slopes 21 5) Install Swales to Capture Track Runoff acres 6) Seed All Stormwater Structures acres 7) Remove Topsoil from Rail Siding Area seed topsoil pile acres 8) Grade Rail Siding Area 22 9) Place Gravel and Rails on Rail Siding Area acres 10) Reseed entire Office Area Site as needed 23 11) Rework wet pond to transition to post construction Upon Site Stabilization

7 Intended Construction Sequence Pipeline Construction 1) Stabilize Construction Entrance (Use existing where possible) 10 < 1.0 ac 2) Pipeline Clearing ) Silt Fence Installation ) Pipeline Grubbing / Water Bar Installation ac 5) Pipeline Installation ac 6) Right of Way Seeding varies