indiana harbor and canal confined disposal facility
TRANSCRIPT
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US Army Corps of Engineers BUILDING STRONG®
Indiana Harbor and Canal Confined Disposal Facility 2011 Technology Conference East Chicago, Indiana
16 November 2011
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Topics
Construction Overview Facility Operations/Dredging Contract CDF Dam Safety CDF Groundwater Gradient Control Air Monitoring Update
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Indiana Harbor & Canal Federal Navigation project in East
Chicago, Indiana Identified as an Area of Concern under the
Great Lakes Water Quality Agreement of 1978 CDF has 4.8 Million CY Capacity—1.8
Million CY of this is Backlog Dredging, Remainder is future Maintenance Dredging Not dredged since 1972 due to a lack of
suitable disposal facility for sediment
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ECI Site Background
Petroleum products refinery from 1918 to 1981. Produced propane, leaded and unleaded
gasoline, fuel oil, kerosene, grease, oils, asphalt, paraffin wax, phenols, sulfur, and insecticides.
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ECI Site Background
In 1981 the owner Energy Cooperative Incorporated (ECI), filed for bankruptcy. In the late 1980’s, by court order, all
buildings and above ground structures were razed. Clean topsoil covered the site. In 1989, the City of East Chicago became
the owners for back taxes owed by ECI.
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IHC CDF Site in the mid 1900’s – an active refinery
N
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Indiana Harbor CDF
Layout consists of two cells within clay dikes. Space on the south end for support facilities.
West
Cell
East
Cell
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Previously Completed Construction Contracts
Obstructions Removal –Pipe Removal in the Lake George Canal Slurry Wall – 30 ft depth around 3 sides of
the site. Phase I and II Dikes – Perimeter Dike
System South Cutoff Wall – Steel Sheet Pile Wall
installed in the canal. Sheets vary from 50’ - 75’ in length.
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Recently Constructed: Phase III Dikes
Constructed a 1630' long exterior clay dike to enclose the CDF to current height (21') Constructed an interior dike to create 2
disposal cells Constructed two decant structures to
dewater the CDF Installed an access road on top of the
exterior dike
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Recently Constructed: South End Features
Construction included site security Administrative building Maintenance and Storage Facilities Parking Lot, Access Roads Decontamination Station Water main, sanitary tank, storm sewer
installation.
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Administrative Building/Garage
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IHC Facility Operations and Dredging
Contract was awarded on September 30, 2011 Joint Venture between Kokosing
(Durocher Marine) and O’Brien & Gere. Currently doing administrative start-up.
Onsite activities anticipated in Spring 2012
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Contract consists of:
Dredging up to 400,000 CY/year based on funding. Operation of the Gradient Control System Site maintenance Water Treatment Air Monitoring Project website for reporting air and
dredging activities
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Dredging and Placement Mechanical dredging with environmental
bucket ►Turbidity monitoring up and downstream ►Oil booms around dredging operation
Hydraulic off-loading with water recirculation from the CDF ►Real time air monitoring, dockface air
monitoring ►Emissions controls at the CDF as needed
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Mechanical Dredging
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Hydraulic off-loading
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IHC CDF Operation
Ponded CDF (not dewatered during dredging seasons) ►Reduces volatile emissions ►Eliminates particulate emissions ►Improves quality of water in CDF ►Reduces amount of water to be treated
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Tentative Schedule First dredging event in summer 2012
Each dredging event may be 2 – 6 months
depending on funding Year round activities at site: water
treatment, air monitoring, gradient operation
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Technology Issues Update
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Dam Safety Overview USACE oversees over 650 dams nationwide The USACE Dam Safety Program ensures all
dams are designed, constructed, and operated safely and effectively under all conditions
USACE works with a variety of federal, state, and private dam safety officials to build and maintain the Dam Safety Program
Emphasizes training local personnel on the issues specific to their dam
This holds the CDF accountable to stringent inspection and operational standards
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On Site Dam Safety Activities at CDF
Weekly Inspections by Contract Personnel Monthly Analysis of Project
Instrumentation Annual Inspections by USACE Personnel Communication Plans Site Training
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Dam Safety Communication
Communication plans should an emergency occur ►Emergency Action Plan – an internal
notification plan to quickly transmit information from the site to USACE officials
►Coordinated with local emergency responders (East Chicago EM, Police, & Fire Dept.)
►Practiced internally so all on site personnel are familiar with emergency procedures
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Preventing/Controlling an Environmental Emergency
• Regular inspections of CDF condition • Frequent monitoring and surveillance of
instrumentation • Staff training • Controlled inflow of water • 2 cells provide easier water management • Ditches on surface drain water towards
the canal • Cline Ave support wall prevents flow to
north • Site topography would direct water to the
south
Cline Ave
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CDF Groundwater Gradient Control
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Gradient Control System The Gradient Control System
is a mechanical system to draw groundwater to the CDF
System of wells, pumps, and piping all below ground surface
Required to keep groundwater on site 2 feet below groundwater off site to contain existing contamination
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How the Gradient System Works
Step 1- Trap Groundwater on Site
Step 2- Pump Water from Wells
Step 3- Monitor Water Levels
Groundwater Monitors
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Where does Groundwater Go?
Wells direct water into pipes around the site The pipes lead to two large pump stations The pump stations pump water to a
treatment facility on site The treatment facility treats the water and
releases it in the canal
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What do the groundwater levels look like now
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Gradient Control Statics
Working since June 2010 to lower groundwater 144 million gallons of groundwater
pumped and treated from June 2010 – September 2011 Average daily pump rate is 160 gpm
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Air Monitoring Update
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Ambient Air monitoring Was 2 locations (south side and high school) Going back to 5 locations:
• All four sides of CDF, on top of dikes • High school (same location)
Same monitoring parameters: volatile compounds, particulates, metals, semi-volatile compounds
Data still to be posted on Argonne website: https://web.ead.anl.gov/inharbor/data/analysis/publicTables/index.cfm?po
p=1
Or access through project website: http://www.lrc.usace.army.mil/projects/IN_harbor_canal_CDF/index.html
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Ambient Air Monitoring Station
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New Air Monitoring Activities Real Time Air Monitoring
►Purpose is to determine what is emitted from the CDF, and what controls are needed
►Naphthalene (surrogate for all volatile compounds)
►Particulates ►Data will be posted on a website (in
development) ►Anticipated to start in the spring (will start prior
to dredging)
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New Air Monitoring, Continued Dock face monitoring using a Photo-
ionization detector (PID) ►Intended to determine if there is any impact
from barges parked along the south side of the site during sediment handling
►Will measure total volatile compounds (from all sources in the area)
►“Point” measurements (not continuous), measurements will be posted on website with real time measurements
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Photo- ionization detector
(PID)
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Questions? Comments?
For More information, contact: Natalie Mills, Project Manager 312-846-5561 [email protected]