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Spectron Superfund Site Proposed Plan Contaminated Shallow Soils. U.S. EPA Region III June 26, 2003 Philadelphia, PA. Robert J. Sanchez US EPA - Remedial Project Manager. Meeting Agenda. Superfund Process Participants Site History Cleanup Action History Elements of the Proposed Plan

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spectron superfund site proposed plan contaminated shallow soils

Spectron Superfund SiteProposed PlanContaminated Shallow Soils

U.S. EPA Region III

June 26, 2003

Philadelphia, PA

Robert J. Sanchez

US EPA - Remedial Project Manager

meeting agenda
Meeting Agenda
  • Superfund Process
  • Participants
  • Site History
  • Cleanup Action History
  • Elements of the Proposed Plan
  • Next Steps
superfund process
Superfund Process

Investigation

  • How much contamination?
  • Where is the contamination?
  • What are the conditions on-Site?
  • What are the risks?

Feasibility Study

  • How can we clean this up?
  • Possible Alternatives
slide4

EPA's Superfund Process

Prelim. Assessment/

Site Inspection/

HRS Scoring

Notification/

Site Discovery

Removal

Assessment

REMEDIAL

REMOVAL

Sites in the Remedial Program may be referred to the Removal Program at any time, and vice versa.

Removal

Action

No

Action

No

Action

Proposal

to NPL

Proposed

Plan

(Finalized

on NPL)

Record of

Decision

Remedial

Investigation

Feasibility

Study

(…if finalized on NPL…)

Remedial

Action

Proposed

Deletion

Remedial

Design

Operation &

Maintenance

Deleted from NPL

Community Involvement and Enforcement take place throughout the Superfund Process.

Public comment is solicited at Proposal to NPL, Proposed Plan, and Proposed Deletion.

proposed plan
Proposed Plan
  • EPA’s Recommended Cleanup Method or

“the Preferred Alternative”

    • Subject to change based on comments
  • Your comments and concerns?
    • Be heard today
    • Write or email us before August 20, 2003
  • Final Cleanup Determination
    • Record of Decision (ROD)
participants
Participants
  • Federal Government
    • US Environmental Protection Agency
    • US Fish and Wildlife
    • Agency for Toxic Substances and Disease Registry ("ATSDR").
  • State Government
    • Maryland Department of the Environment (MDE),
  • Potential Responsible Parties (PRPs)
  • Local Governments and
  • The Public
spectron superfund site 1961 1988 galaxy chemicals spectron inc
Spectron Superfund Site1961 – 1988 Galaxy Chemicals/Spectron, Inc.

Contaminants of Concerns – Solvents

Trichloroethene("TCE") and

Perchloroethene ("PCE")

historic cleanup actions
Historic Cleanup Actions
  • 500,000 gals of flammable chemicals removed
  • Residential Well Sampling Program Started
  • Ground water containment system Installed
  • Contaminated Shallow Soil – Operable Unit 1
  • Contaminated Bedrock – Operable Unit 2
residential well sampling program
Residential Well Sampling Program
  • Responsible Parties agreed to pay cost of sampling your wells.
  • Over 5 years of sampling wells.
  • Continues to meet drinking water standards.
  • Sampling will continue.
ground water containment system
Ground Water Containment System
  • March 2000 - Startup of ground water containment system.
  • Treats 40,000 gallons of contaminated ground water per day.
  • Levels dropped significantly in Creek
  • IT DOES NOT SMELL ANYMORE!!!
operable unit 1 phase 1 shallow soil contamination
Operable Unit #1 (Phase 1) Shallow Soil Contamination

OU #1 Includes:

Ground water containment system

Plant area soils (approx 7 acres)

Soil down to the bedrock (4ft to 15 ft deep)

OU #2 Includes:

Office Area

Bedrock

Ground water (off-site)

Residential wells/Creek

slide18

Operable Unit 1 Coverage

Plant Area down to Bedrock

slide19

Power House (existing)

SOIL OPERABLE UNIT 1

BEDROCK OPERABLE UNIT 2

proposed plan common elements
Proposed Plan Common Elements
  • Ground water containment, collection and treatment system
  • Demolish all old structures
  • Re-Grade Site
  • Deed Notices not to build

or drill a well

proposed plan alternatives
Proposed Plan Alternatives

Alt #

1. No Action

2. Phytoremediation (Trees) soil cover

3. Sub-surface treatment and an

engineered plastic cap

4. Excavation “hot spots” with off-site disposal,

and a soil cover

5. Soil Vapor Extraction (vacuum)

with plastic cap

epa s preferred alternative sub surface treatment and an engineered plastic cap
EPA’s Preferred AlternativeSub-surface treatment and an engineered plastic cap
  • Ground Water Containment System
    • Continue to meet Water Quality Criteria in Creek
  • Sub-Surface Treatment of contamination
    • Treats contamination - residual DNAPL
  • Engineered Protective Cover (“Plastic Cap”)
    • Prevent current or future direct contact
  • Institutional Controls
    • Prevent current and future

use of ground water

epa s preferred alternative sub surface treatment and an engineered plastic cap1
EPA’s Preferred AlternativeSub-surface treatment and an engineered plastic cap

WHY THIS ALTERNATIVE?

  • Provides sub-surface treatment
  • Provides protective barrier between people and contamination
  • Prevents wash-outs due to floods
  • Helps minimizes flow to system
  • Less disruptive to community
  • Standard Construction methods
  • Cost effective
slide24

Preferred Alternative

Sub-surface treatment and Engineered Cap

next steps
Next Steps
  • End of Comment Period: Aug 20, 2003
  • Issue Final Cleanup Plan – ROD: Sept 30
  • Consent Decree negotiations
  • Remedial Design – How to build it
  • Remedial Action – Construction Start-up
epa contacts
EPA Contacts
  • Robert Sanchez,

Remedial Project Manager

(215) 814-3451; sanchez.robert@epa.gov

  • Carrie Deitzel,

Community Involvement Coordinator

(215) 814-5525; deitzel.Carrie@epa.gov

for more info check out the epa s spectron web site
For more info, check out the EPA’s Spectron Web Site

http://epa.gov/reg3hwmd/super/MD/spectron

End of slides.

Thank you for coming.

alternative cost summary
Alternative Cost Summary

* O & M costs include $360K for Ground Water Containment System operation