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Portage Creek Area

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Additional soil removal/recontouring at John Street Staging Area<br />Date Taken: 5/5/2014<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Additional restoration plantings in SA1A<br />Date Taken: 5/1/2014<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Additional soil removal at former staging area in SA1A Grid 7.<br />Date Taken: 5/1/2014<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Restoration plantings in Rose Park (SA1A East bank) <br />Date Taken: 12/3/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Grading completed and seed/straw applied at former John Street Staging Area <br />Date Taken: 12/4/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Tree planting in SA1A (Rose Park)<br />Date Taken: 11/20/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Concrete Repair SA3-A (Michigan Avenue entrance)<br />Date Taken: 11/20/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Concrete Repair SA1A <br />Date Taken: 11/12/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Asphalt Repair SA1A<br />Date Taken: 11/12/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
The Kalamazoo River Valley Trail was re-opened for use on October 23rd.<br />Date Taken: 10/24/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Rebuilt section of Kalamazoo River Valley Trail and light post re-installed in Rose Park.<br />Date Taken: 10/22/2013<br />Category: Site Photo<br />Latitude: 42.2955<br />Longitude: -85.5748166666667<br />Tags:
SA1-A with environmental controls to support dredging removed and temporary restoration measures completed.<br />Date Taken: 10/23/2013<br />Category: Site Photo<br />Latitude: 42.2908166666667<br />Longitude: -85.5836166666667<br />Tags:
Re-constructed creek channel in SA1A<br />Date Taken: 10/2/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Excavation and removal of the 'final scoops' of PCB contaminated sediments from Portage Creek.<br />Date Taken: 9/25/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Excavation of SA1A under pedestrian bridge at confluence with Kalamazoo River.<br />Date Taken: 9/24/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
SA1A Grids 1 & 2 contaminated sediments removal completed with staging area in background.<br />Date Taken: 9/12/2013<br />Category: Site Photo<br />Latitude: 42.2908166666667<br />Longitude: -85.5843333333333<br />Tags:
Perimeter dust monitoring continues during site activities at both the staging pad and excavation areas to protect downwind sensitive populations such as Youth Center (background)<br />Date Taken: 8/1/2013<br />Category: Site Photo<br />Latitude: 42.2813<br />Longitude: -85.5786166666667<br />Tags:
Excavation, solidification and load out of contaminated sediments from SA1-B4.<br />Date Taken: 7/31/2013<br />Category: Site Photo<br />Latitude: 42.2919333333333<br />Longitude: -85.5832666666667<br />Tags:
Ultrasonic microphone used in Indiana Bat presence/absence survey in SA1B & SA1A <br />Date Taken: 7/17/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:
Installation of upstream sheet pile coffer dam in SA1C.<br />Date Taken: 7/8/2013<br />Category: Site Photo<br />Latitude: <br />Longitude: <br />Tags:

Additional soil removal/recontouring at John Street Staging Area Additional restoration plantings in SA1A Additional soil removal at former staging area in SA1A Grid 7. Restoration plantings in Rose Park (SA1A East bank) Grading completed and seed/straw applied at former John Street Staging Area Tree planting in SA1A (Rose Park) Concrete Repair SA3-A (Michigan Avenue entrance) Concrete Repair SA1A Asphalt Repair SA1A The Kalamazoo River Valley Trail was re-opened for use on October 23rd. Rebuilt section of Kalamazoo River Valley Trail and light post re-installed in Rose Park. SA1-A with environmental controls to support dredging removed and temporary restoration measures completed. Re-constructed creek channel in SA1A Excavation and removal of the 'final scoops' of PCB contaminated sediments from Portage Creek. Excavation of SA1A under pedestrian bridge at confluence with Kalamazoo River. SA1A Grids 1 & 2 contaminated sediments removal completed with staging area in background. Perimeter dust monitoring continues during site activities at both the staging pad and excavation areas to protect downwind sensitive populations such as Youth Center (background) Excavation, solidification and load out of contaminated sediments from SA1-B4. Ultrasonic microphone used in Indiana Bat presence/absence survey in SA1B & SA1A Installation of upstream sheet pile coffer dam in SA1C. Contaminated sediment removal operations in SA1C Installation of suction tubes for creekwater bypass system in SA1C SA3 after sheet piling was removed Backfilling of excavated grids in SA3A according to Restoration Plan. Excavation of contaminated sediments in SA3A. Excavated grids in SA3A. Contaminated sediments can be seen in the foreground and continue to be found at depths exceeding target excavation depths. SA5A during backfilling SA5A after excavation and backfilling Contaminated sediments were encountered within 12 Excavation and solidification of contaminated sediments in SA5A. Construction of creekwater bypass system in SA3A. Overtopping of sheet pile coffer dams due to heavy rainfall delays excavation activities. Water turbidity monitors used to monitor water quality upstream and downstream of excavation area. Contaminated sediment removal operations in SA5A using specialized long reach excavator equipped with GPS. Tree removal work completed in SA1C. Site grading on south creek bank in SA3A to facilitate bypass pump system installation Creek bypass system to faciltate dredging in SA5A at the Dutton Street bridge SA5A work area facing north with bypass pump discharge piping staged on east bank for use in 2013. As the waste water treatment plant is shut down for the winter, tanker trucks are pumping waste water from staging pad sump for off site treatment. Restoration of east bank of Portage Creek in Upjohn Park (facing east). Curb cut at Lake Street replaced by new curb and sidewalk. All damaged sidewalk and curb is replaced as specified by the City of Kalamazoo. EPA START contractor processing post-construction soil samples taken in SA5D. After all activities are completed, this sampling confirms that the area is free of contamination. Heavy equipment being demobilized from the site. Tanker truck removing contamined run-off water from staging pad sump, as EPA's mobile wastewater treatment plant has been shut down for the Winter. This tanker will continue to remove water from the sump until Spring. View of SA5C (Crosstown Parkway to Vine Street) facing north after backfilling and coir log placement. View of SA5A facing south after clearing and grubbing activities on east bank. Final excavation depths in SA5C grids extended beyond the target depths specified in the work plan due to the presence of contamination. Trees planted in SA7 according to Restoration Plan. Placement of swamp mats to access grid SA5C-1 required due to creek width at this location. EPA personnel overseeing excavation of SA5C at the Crosstown Parkway bridge Backfilling in SA5D-12 with clean stone, sand and rock to re-construct creek channel. View of excavation headwall in SA5D-13 showing a 18-30 Grid SA5D-8 (background) backfilled according to Restoration Plan, and Grid SA5D-9 (foreground), excavated to clean depth confirmed by sampling. Completed excavation of creek channel in SA5D prior to backfilling. Visibly contaminated sediments and paper sludge at target excavation depths (middle level) require over-excavation to almost twice the target depth (foreground) to meet the clean-up performance standard. Contaminated sediment removal operations in SA5D. Staging pad where removed sediments are further solidified and de-watered after removal prior to shipment to pre-approved landfills. TSCA sediments (>50ppm PCBs) are staged separately from non-TSCA sediments (<50ppm PCBs). Creek bypass system installed at Lake Street. Five 12 Second over-excavation underway in Axtell Creek. Excavation and sampling well beyond the original target depths were necessary to meet cleanup objectives. Example of a sediment core taken from the Axtell Creek bed showing additional PCB impacted sediments below target dredging depths which will require additional over-excavation. Creek bypass pumping system installed at Lake Street bridge to route water around excavation area to Vine Street (SA5-D & C) Temporary bridge being set in place to facilitate off road truck crossing into staging area from Upjohn Park thus avoiding using public roads to transport contaminated sediments. Crews on the right bank installing groundwater dewatering wells and crews on the left constructing creek bypass dewatering pipelines in SA5-D (Upjohn Park). Excavating and stabilizing sediment from Axtell Creek. Excavation of Axtell Creek Grid AXC2. Axtell Creek by-pass pump system Crews removing large bypass pumps used to divert creek water around dredging area in SA6. Sheet pile coffer dam installed in Portage Creek north of Lake Street bridge to support creek bypass pump system which will be installed in late July. Axtell Creek bypass pump system intakes and sheet pile coffer dam for isolating dredging area. Completed and backfilled grids SA6-7 to SA6-10 with coir logs visible along banks to prevent erosion. De-watering extraction wells visible along left bank. Sampling crews taking post-excavation sediment samples for PCB analysis to confirm clean up levels are met prior to backfilling. Dredging operations underway in SA6-13. Sheet pile coffer dam & isolation de-watering system is seen along the right bank. EPA's mobile waste water treatment plant with adjacent frac tank is staged next to staging pad for contaminated water treatment De-watering well system installed along banks to reduce ground water infiltration into creek channel during dredging operations. Dreding operations in SA6-8 to SA6-10 were conducted slowly due to small working area along a large building. Restored creek channel section. Three different types of aggregates are used and 'coir logs' are placed along the banks to prevent undercutting once the creek returns to normal flow conditions. Further solidification/mixing of sediments at John Street staging pad prior to load out for shipment to landfill. Loading out solidified sediments from mixing boxes to trucks for transport to John Street staging area. Dredging from first isolation area with a long reach excavator with specially designed bucket. Installation of sheet piling to isolate first isolation area near Stockbridge Avenue bridge. Intakes for bypass watering system at Stockbridge Avenue bridge SA7 after grading and backfill Front of SA7 after backfilling and grading. Truck placarded for transport of PCB contaminated soils to approved TSCA landfill John Street staging pad under construction Solidification with cal cement and loading out contaminated soils/sediments from SA-7 excavation area. East Bank of UpJohn Park SA6 Pump Test Work crews removing trees, brush, and woody debris from the creek and west bank