great lakes legacy act sediment remediation and ... · indiana department of natural resources...
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Stateline/West Branch Grand Calumet River, Hammond, Indiana
Great Lakes Legacy ActSediment Remediation and Restoration Project
Jointly funded by the U.S. EPA, Indiana Department of Environmental Management (IDEM),Indiana Department of Natural Resources (IDNR), and the Northern Indiana Public Service Company (NIPSCO).
This cleanup is the result of a partnership between the U.S. EPA, IDEM, IDNR, USFWS, NIPSCO, and the City of Hammond.
®
Reach 1 & 2Completed June 2013
Reach 1 & 2Completed June 2013 Reach 2a & 2bReach 2a & 2b
Reach 4a & 4bCompleted September 2015
Reach 4a & 4bCompleted September 2015
Reach 2cReach 2c
Reach 3CompletedSept. 2009
Reach 3CompletedSept. 2009
Reach 4 & 5CompletedOct. 2010
Reach 4 & 5CompletedOct. 2010
Stateline/West BranchStateline/West Branch
West Branch East Branch
Grand Calumet Overview
In progress Completed Not yet begun
Stateline/West Branch Grand Calumet River, Hammond, Indiana
Current Activities
Framing Temporary Structure Temporary Structure
Install Sheetpile Dam Install Super Sack Dam
Construct temporary dams to create work area for dry excavation
Erect a temporary building where cap material will be mixed
Construct temporary access roads and sediment processing areas
Water Treatment Plant
Install a temporary water treatment plant
Stateline/West Branch Grand Calumet River, Hammond, Indiana
Future ActivitiesDry ExcavationDry Excavation
CappingCappingInstalling CapBlending Cap MaterialBlending Cap Material
Loading Truck for O�-Site Disposal Washing Truck Before Leaving Site
Sediment Loading
Restoration
Stateline/West Branch Grand Calumet River, Hammond, Indiana
Air Monitoring
• Performed around active work areas
• Provides instantaneous readings of dust and organic vapor levels
• Construction activities adjusted or changed if readings exceed acceptable levels
Real-time monitoring• Collect air samples over daily
work shift
• Reported air concentrations for individual chemicals
• Results provide a more complete picture of longer-term air impacts from construction
Fixed location monitoring Odor control system• Implemented as needed based on
odor levels at the site
The air sampling locations shown on the map above have been selected to measure air concentrationsat the project permimeter and in areas where contaminated sediment is handled and processed.
Legend
!0 Air Monitoring Location
Cleanup Area
Hubert Humphrey Building
Sediment Processing Pad
Stateline/West Branch Grand Calumet River, Hammond, Indiana
Truck RoutesOverview of Cleanup Area from Site to ExpresswayCapping materials mixing area to Cleanup Area (Blue) and Return (Red)
2 Inbound Route
2 Outbound Route
Outbound Route
Inbound Route
Staging Area
Project Area
Staging AreaStaging Area
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