Proposed Chromium and Cadmium Remediation Plan: Plate This, Inc' Chesterfield, Missouri

1
Proposed Chromium and Cadmium Remediation
PlanPlate This, Inc.Chesterfield, Missouri
Plate This, Inc.
Ganesh Environmental Engineering Incorporated
Ganesh Environmental Engineering Inc.U.S.
Environmental Protection AgencyMissouri
Department of Natural Resources
2
Site Background

• Plate This, Incorporated
• World Leader in Metal Plating
• 1000 acre facility
• HQ in Chesterfield, Missouri (manufacturing,
  transport, and offices)
• 1993, Single Truck Accident Hauling Chromium and
  Cadmium Wastes
• Temporary treatment to prevent movement of metals
  using passive walls
• Great Flood of 1993
• 8 year litigation
• Plate This required to pay all clean up costs

3
Site Characteristics

• Only a small 47 acre plot in the northeastern
  section of company property contaminated
• Missouri River to the East and South
• Industrial zoned area neighbored by a
  transportation hub and barrel maker
• Transport, Waste Treatment, and Maintenance Area
• Various sources of surface water
• Typical River Bottom Geology
• Contamination
• Shallow Wells 4
• Deep Wells19

4
Scope and Role of Operable Unit or Response Action

• 50 Years of Industrial Practices at Site with No
  Plans of Changing
• Not Specified as a Brownsfield Site
• Contaminant Removal to
• Chromium1000 ug/l
• Cadmium110 ug/l
• Remediation Phases
• Phase I Discontinue pumping companys wells
• Phase II Containment of Site
• Phase III Contaminant Removal

5
Summary of Site Risks

• Facility not near residential zones, yet if not
  treated, metals can end up in downstream water
  treatment plant intakes
• Health Problems
• Chromium--Hematological, Hepatic, Renal,
  Neurological, Testicular diseases in human beings
• Cadmium--Renal (proteinuria), Cardiovascular,
  Hematological, Hepatic, Neurological, Testicular
  cancers
• MCLs
• Chromium1000 ug/l
• Cadmium110 ug/l

6
Remedial Action Objectives

• Site divided into 30 sectors
• 4 sectors remediated by EKRT and Soil Washing
• 4 sectors remediated by EKRT alone
• Remaining sectors remediated by Phytoremediation
• Maximum contaminant levels
• 1000 ug/L Chromium
• 110 ug/L Cadmium

7
Summary of Remedial Action Alternatives

• Electro Kinetic Remediation Technology (EKRT)
• Soil Washing
• Treatment Walls
• In Situ Vitrification (ISV)
• Phytoremediation

8
Remedial Action Alternatives to be Achieved and
Estimated Quantities of Material to be Addressed

• Implementation Requirements
• Reasonable Future land use
• Expected Outcome using various Remediation
  Alternatives
• Estimated Cost

9
Evaluation of Alternatives

• Overall Protection of Human Health and the
  Environment
• Long Term Effectiveness and Permeance
• Reduction of Toxicity, Mobility, Volume through
  Treatment
• Short Term Effectiveness
• Implementability
• Cost
• State/Support Agency Acceptance

10
Preferred Alternative

• Soil Washing, EKRT, Phytoremediation
• Cost of Soil Washing 9,239,640
• Cost of EKRT 27,841,391
• Cost of Phytoremediation 12,849,873
• Total Cost of Remediation 49,930,000

11
Community Participation

• All design decisions will go to the public for a
  final decision.
• Public Comment Period June 1-July 31, 2003
• Public Hall Meeting June 10, 2003
• Chesterfield City Hall690 Chesterfield Pkwy W,
  Chesterfield, MO 63017 Phone [phone]
• Location of Administrative Records
• St. Louis County Library16400
• Burkhardt Place
• Chesterfield, Missouri 63017
• Phone [phone]Call for Hours

12
Conclusions and Wrap-Up

• Chromium concentration down to 1000 ug/l
• Cadmium concentration down to 110 ug/L
• Three technologies used are EKRT, Soil Washing,
  Phytoremediation
• Cost of the project 49,930,000
• Takes three years to remediate the highly
  concentrated portions

13
Questions or Comments?

• Thanks for your Attention.