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.

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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