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Tittabawassee River Dioxin-Reach D

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Day one of Turbidity Barrier Construction in Tittabawassee River at Reach Project D Area<br />Date Taken: 7/13/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Day two of Turbidity Barrier Construction in Tittabawassee River at Reach Project D Area<br />Date Taken: 7/14/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Day four of Turbidity Barrier Construction in Tittabawassee River at Reach D Project Area<br />Date Taken: 7/16/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Day five of Turbidity Barrier Construction in Tittabawassee River at Reach D Project Area<br />Date Taken: 7/17/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Day six of Turbidity Barrier Construction in Tittabawassee River at Reach D Project Area<br />Date Taken: 7/18/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Day Seven of Turbidity Barrier Construction in Tittabawassee River at Reach D Project Area<br />Date Taken: 7/19/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
HDPE Pipeline for Reach D Sedimentation Transport<br />Date Taken: 7/19/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Front View of Solar Powered Air Monitoring Station<br />Date Taken: 7/12/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Back View of Solar Powered Air Monitoring Station<br />Date Taken: 7/18/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Reach D Containment Cell Geo-Tube Staging Area with Concrete Sump in Foreground<br />Date Taken: 7/17/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Reach D Containment Cell Decant/Settling Pond with Weir in Background<br />Date Taken: 7/17/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Reach D Containment Cell Decant/Settling Pond Cement Weir with Concrete Sump Upper Right<br />Date Taken: 7/17/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Reach D Containment Area Overflow Decant/Settling Pond Cell<br />Date Taken: 7/17/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Reach D Containment Area Boardwalk Between Cells <br />Date Taken: 7/17/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Geo-Tube Dewatering cell in the process of having asphalt laid<br />Date Taken: 7/25/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
General View from Dow's 'piping' bridge looking toward the North (upstream) of Turbidity Barrier<br />Date Taken: 7/26/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Southern portion of Turbidity Barrier in proximity to Dow's 'piping ' bridge. Note section that has been driven/cut to grade<br />Date Taken: 7/24/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Portion of Turbidity Barrier that has been driven to grade<br />Date Taken: 7/31/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
Panaramic View of Reach D Turbidity Barrier<br />Date Taken: 8/2/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:
General Excavation Activities within Reach D Turbidity Barrier. Note color difference on either side of Turbidity Barrier<br />Date Taken: 8/1/2007<br />Category: <br />Latitude: <br />Longitude: <br />Tags:

Day one of Turbidity Barrier Construction in Tittabawassee River at Reach Project D Area Day two of Turbidity Barrier Construction in Tittabawassee River at Reach Project D Area Day four of Turbidity Barrier Construction in Tittabawassee River at Reach D Project Area Day five of Turbidity Barrier Construction in Tittabawassee River at Reach D Project Area Day six of Turbidity Barrier Construction in Tittabawassee River at Reach D Project Area Day Seven of Turbidity Barrier Construction in Tittabawassee River at Reach D Project Area HDPE Pipeline for Reach D Sedimentation Transport Front View of Solar Powered Air Monitoring Station Back View of Solar Powered Air Monitoring Station Reach D Containment Cell Geo-Tube Staging Area with Concrete Sump in Foreground Reach D Containment Cell Decant/Settling Pond with Weir in Background Reach D Containment Cell Decant/Settling Pond Cement Weir with Concrete Sump Upper Right Reach D Containment Area Overflow Decant/Settling Pond Cell Reach D Containment Area Boardwalk Between Cells Geo-Tube Dewatering cell in the process of having asphalt laid General View from Dow's 'piping' bridge looking toward the North (upstream) of Turbidity Barrier Southern portion of Turbidity Barrier in proximity to Dow's 'piping ' bridge. Note section that has been driven/cut to grade Portion of Turbidity Barrier that has been driven to grade Panaramic View of Reach D Turbidity Barrier General Excavation Activities within Reach D Turbidity Barrier. Note color difference on either side of Turbidity Barrier Day one of Reach D Excavation process from Eastern Bank of Tittabawassee within Turbidity Barrier Raising of a section of Turbidity Barrier 'wall' that is underneath Dow's 'piping' bridge. Note cranes on each side of bridge working in tandem Section of Turbidity Barrier 'wall' being driven to grade underneath Dow's piping bridge. Note Vibro-hammers on each side of Turbidity 'wall' Installation of Turbidity Barrier South of Dow's 'Piping' Bridge View from Dow's 'Piping Bridge' showing excavation activities and Turbidity Barrier Activities General view of Geo-tube dewatering cell (Four Acres) after asphalt activities Dow's on site landfill (Salzburg) where Reach D materials are being deposited Dow contractors removing section of temporary turbidity barrier to allow construction barge entrance Progression of removal of section of temporary turbidity barrier Completion of removal of temporary turbidity barrier section for construction barge entrance Dow contractor re-installing Turbidity barrier section after construction barge has relocated to inside of barrier Dow contractor positioning vibro-hammer to pull out historic sheet piling Dow contractor removing 'historic' sheet piling located in river bottom near eastern bank Dow Contractors inside turbidity barrier removing historic sheet piling. Gravel drain field for Geo-Tube containment cell Geo Tube prior to being 'rolled' out Reach D containment cell with staged Geo-tubes General View of Reach D containment cell with Geo Tubes Reach D Containment Cell with Geo Tubes and associated drainige hoses Platform for lowering/raising electric pump from Reach D containment cell decant pond Turbidity Barrier activities/progress between Dow Bridges General view of Turbidity Barrier construction as it nears Dow's downstream bridge Dow contractor in process of fabricating sheet piling 'wall' for later installation Dow contractor in process of removing historic 'flume' sheet piling within contained turbidity barrier Close up of historic 'flume' sheet pile dating back to late 1930's early 1940's Close up (in foreground) of 40' permanent sheet piling in 'set' position prior to being driven to grade located parallel to Eastern bank within temporary turbidity barrier Dow contractor removing historic 'flume' sheet piling and staging against Eastern bank Dow contractor 'setting' permanent sheet piling parallel to Eastern bank General view of Temporary turbidity barrier and permanent sheet piling quonset hut in containment cell area which houses electrical controls and polymer/flocculation tank Polymer/flocculation additive tank in Reach D containment cell area Geo tube header pipe assembly Installation of permanent sheet piling along Eastern bank/RGIS system Permanent solar/battery powered turbidity monitor Navigation light for Reach D Project area Dow contractor mobilizing marine platform construction barge underneath downstream bridge prepping for installation of sheet piling panel underneath upstream bridge upper piece of sheet pile 'panel' prior to completion of welding underneath upstream bridge Extent of temporary turbidity barrier south of downstream bridge General construction activities Dow contractors utilizing vibro-hammer on temporary turbidity barrier south of downstream bridge General view of Temporary turbidity barrier and permanent sheet piling along Eastern bank of Tittabawassee River Dow Contractor utilizing GPS Instrumentation on temporary turbidity barrier General construction activities on turbidity barrier underneath Dow's 'piping' (upstream) bridge Close up of turbidity barrier underneath Dow's 'piping' (upstream) bridge prior to being driven to elevated grade STaging of excavator with dredge 'hoe' attachment on marine platform barge Dow contractors assembling dredging boat Dows upstream turbidity monitor and a navigation light in background Dow contractors attaching 'cut off wall' to turbidity barrier south of downstream bridge Dow contractors completing the setting of the 'cross wall' into the Eastern bank of the Tittabawassee Dow contractors in process of completing setting permanent sheet piling along Eastern bank of the Tittabawassee nearing temporary turbidity barrier behind construction barge HDPE sediment transport pipeline with 'test' run of river water entering Reach D geo Tube containment cell River water entering Reach D Settling/De-cant cell from Geo Tube cell during Dow's 'test' run of HDPE sediment transport pipeline Reach D Containment settling/de-cant pond filling up with river water during Dow's 'test' run of HDPE sediment transport pipeline Contractors manuevering marine construction barge underneath downstream bridge Contractors driving sheet panel wall pilings underneath upstream bridge Contractors setting sheet pilings (turbidity barrier) south of downstream bridge Progression of temporary turbidity barrier south of downstream bridge Turbidity barrier construction activities south of downstream bridge Progression of turbidity barrier south of downstream bridge and cut off wall Contractors connecting dredge barge floating hose to onshore HDPE Sediment transport pipeline Aerial view of dredging operations within contained turbidity barrier Close up of dredge boat during operations Geo Tube in Reach D containment cell receiving sediment and water from Tittabawassee Reach D decant/settling pond. Note cement weir that prevents abundance of fines and silts from entering waste water treatment plant Reach D Containment cell automated composite sampler which receives water from decant/settling pond prior to entering Dow's waste water treatment plant Note multiple operations: active dredging from boat, in background excavator is removing contaminated rip-rap and placing in dump truck and left: contractors driving turbidity barrier sheet piling to final grade excavator with 'vacuum' dredge hoe close up of 'vacuum' dredge hoe Contractors installing permanent sheet piling between Dow bridges along Eastern shoreline View of permanent sheet piling in foreground in 'set' position between both Dow bridges prior to being driven to elevated grade Close up of Geo Tube actively being filled with sediment/water from dredging operations Contractors utilizing 'long reach' excavator to remove rip-rap and large debris which is hindering dredging progress Contractors in process of setting/driving temporary sheet piling that will mark the southernmost extent of temporary turbidity barrier. Note Dow Dam in background temporary turbidity barrier installation immediately North of Dow dam Contractors in process of extracting historic flume sheet piling dating circa 1939/1940 Extracted historic flume sheeting temporarily stockpiled prior to decontamination and reclamation Turbidity Barrier progress immediately North of Dow dam Dow contractors in process of dredging within Northern containment cell. Note excavator in background assisting in sediment extraction Hydraulic hose leak within enclosed turbidity barrier Dow contractors assessing hydraulic hose leak Geo tube in process of being filled with sediment/water Reach D Containment cell settling pond One of two booster pumps used to help convey sediment through 9000 feet of HDPE pipeline Contractors hunched over trench box assesing permanent sheet piling going over 36 inch water main View of temporary turbidity barier between Dow bridges looking East View of Permanent sheet piling along RGIS system in 'set' position, prior to being driven to elevated grade Close up of Dredging 'hoe' attachment to dredge boat View of historic flume piling (in foreground) that has been extracted and temporarily staged prior to decontamination and metal reclamation; temporary turbidity barrier sheet piling in 'set' position in background Contractors in process of extracting historic flume piling with vibro-hammer Contractor in process of torch cutting sheet piling to be utilized underneath Dow bridge as 'add ons' View of temporary turbidity barrier in foreground and permanent sheet piling in background looking Southeast Dredging operations and excavator 'raking' river bottom to loosen consolidated materials View of permanent sheet piling progress near Dow's downstream 'railroad' bridge Due to height constraints of bridge, an excavator with a 'movac' driving unit had to be positioned within river in order to drive temporary turbidity barrier sheet piling to elevated grade Contractors in process of torch cutting permanent sheet piling that has been driven to 'ultimate refusal' View of temporary turbidity barrier nearing Dow dam with majority of sheet piling driven or cut to elevated grade Progress of temporary turbidity barrier and permanent sheet piling (right of picture near bridge) looking North Contractors preparing turbidity curtain for installation over 30 inch water main Framework for turbidity curtain positioned over 30 Turbidity curtain positioned over 30 Close up of sediment being extracted from Northern containment cell View of Geo-tubes with 'camel backs' i.e. sediment build up where piping ports deliver sediment into tubes. Fines and silts will eventually fill voids between sediment humps View of Geo -tubes staged prior to being filled with Reach D sediment Multiple contractor operations within Northern Containment cell Contractor torch cutting permanent sheet piling that has been driven to ultimate refusal Excavation operations in middle containment cell primarily between Dow bridges Dow personnnel and contractors post removal sampling event in Northern containment cel View of Vacuum dredge hoe attachment and floating hose that connects to 9000 foot HDPE sediment transport pipeline Diver with support team Diver with support team prior to river entry to confirm turbidity curtain seal over water main Diver in process of torch cutting remaining historic flume piling near water main Diver proceeding to confirm seal of turbidity curtain over water main Contractors positioning 'long reach' excavator to utilize for 'raking' consolidated materials in 30 Trench box to be installed over 36 tinstalled trench box over 36 Permanent sheet piling installed on either side of 36 Contractor compacting soils after installation of permanent sheet piling around and over 36 Contractors torch cutting temporary sheet piling 'turbidity barrier' to elevated grade Dow personnel removing coring sleeve from post dredge sampling event Slumping cut off wall that separates dredgeing cells Geo tube reching maximum capacity level Odor control instrumentation utilized at containment cell excavation of impacted sediments from dredge cell Dow personnel and contractors with track mounted geo-probe preparing for additional sampling event in Northern Containment cell Additional sampling event within Northern containment cell Dow personnel collecting sediment from geo-probe sleeve from additional sampling event within Northern containment cell Excavation activities of impacted sediment and misc river debris immediately North of Dow dam Dow contractors applying odor supressing foam on to impacted sediment and misc. debris excavted from dredge cell immediately North of Dow dam Dow contractors applying odor supressing foam on to impacted sediment and misc. debris excavted from dredge cell immediately North of Dow dam Dredge boat operating within containment cell immediately North of Dow dam Dredge and excavation activities within 36 Contractors removing excess poly-vinyl containment booms Contractors beginning installation and 'setting' of final turbidity barrier sheet piling section COntractors in last stages of completing installation of turbidity barrier Contractors in process of driving last section of sheet piling to ultimate refusal Contractors in process of extracting 'cut off wall' immediately south of downstream 'railroad' bridge Dredge boat activities within 'Last cell' Contractors 'bailing' sediment and raking consolidated sediment and misc. debris with long reach excavator within last dredge cell Contractors applying sand to co-mingle with freshly excavated sediment to provide additional odor control Dow representative documenting sampling area with GPS Dow sampling operations in last cell near dam Second dredge boat in process of being placed within Northern cell Dredge operations within Northern Cell Dredge boat operations Geo-probe operations within Northern cell Processing of Geo-tube cores for post dredge sediment analysis Close-up of geo-probe Dow sampling event in heavy fog Ice forming on within the Geotube area Ice/snow covered Geotubes Ice forming in the containment cells Processing of hand auger post dredge sample Dow Contractors prepping access equip to Geo-tubes for sediment sampling Dow representatives obtaining sediment sample from Geo-tube Dow representative in process of collecting sediment sample from top of Geo-tube Dow contractors in process of loading dredged sediment from Geo-Tubes for Disposal to Dow's Salzburg landfill Dow contractor utilizing broom to remove miscellaneous sediment prior to departure from Dow property Dow contractors in process of maintaining clean Geo-Tube cell sediment disposal area Particulate monitors staged near Geo-Tube sediment disposal activities Dow Contractor obtaining Geo-Tube sediment sample Close up of Geotube Sediment Close up of excavator on top of Geotube View of Geotube containment cell from afar with contractors nearing completion of sediment disposal activities Dow contractors nearing completion of Geotube sediment disposal activities with final sediment pile pictured