Crown Dykman Crown Dykman 66 Herb Hill Road Proposed Clean-up Plan - - PowerPoint PPT Presentation

Crown Dykman Crown Dykman

66 Herb Hill Road

Proposed Clean-up Plan Proposed Clean-up Plan

March 3, 2010

presented by the New York State Department of Environmental Conservation in cooperation with New York State Department of Health

NYS Department of Environmental Conservation

Welcome

NYS Department of Environmental Conservation

P t Presenters

• Bill Fonda, NYSDEC
• Heide Dudek, NYSDEC

Joseph Yavonditte NYSDEC

• Joseph Yavonditte, NYSDEC
• Susan Shearer, NYSDOH

Susan Shearer, NYSDOH

NYS Department of Environmental Conservation

Agenda

• Introduction – Bill Fonda
• Site History – Heide Dudek

y

• Remedial Investigation/Feasibility Study –

Heide Dudek and Susan Shearer

• Proposed Remedial Action Plan – Heide Dudek
• Questions – Heide Dudek, Joe Yavonditte, Bill Fonda,

Susan Shearer

NYS Department of Environmental Conservation

Citizen Participation

• Complete copies of site documents and related

material are placed at the document repositories:

• Glen Cove Public Library

G e Co e ub c b a y

• NYSDEC Region 1 – Stony Brook Office, and
• NYSDEC Central Office – Albany
• Public Comment Period established (January 20,

2010 – March 10, 2010)

• Public meeting is held March 3, 2010

NYS Department of Environmental Conservation

Citizen Participation (continued) Citizen Participation (continued) Next Steps

• Comments will be reviewed by the NYSDEC and a

responsiveness summary will be prepared. p y p p

• The proposed remedy may be modified due to

comments received from the public. comments received from the public.

• A Record of Decision (ROD) is issued by the

NYSDEC which describes the remedy selected and NYSDEC which describes the remedy selected and why it was chosen.

NYS Department of Environmental Conservation

Site Description Site Description

• The Crown Dykman Site is located in Glen Cove at 66 Herb

The Crown Dykman Site is located in Glen Cove at 66 Herb Hill Road.

• The Site, which has one building, is currently used as an

t ti i h d i l ( t b d) automotive repair shop and commercial (water-based) laundry.

• The USEPA Superfund Li Tungsten Site Parcels A and B are

The USEPA Superfund Li Tungsten Site Parcels A and B are located directly to south and west, respectively.

• Further to the south is the Glen Cove Creek.
• The Konica Minolta Powers Chemco Site is located to the

north and east.

NYS Department of Environmental Conservation

NYS Department of Environmental Conservation

Crown Dykman History

• Operated as a commercial laundry from the

early 1930’s through 1983.

• Operated as a dry cleaner from 1975 to 1983.
• Listed as Inactive Hazardous Waste Site – 1992

Listed as Inactive Hazardous Waste Site 1992

• Primary contaminant tetrachloroethene (PCE)

NYS Department of Environmental Conservation

Remedial Investigation

1992 A preliminar in estigation as completed 1992 – A preliminary investigation was completed. This eventually led to the site being as a Class 2 site in the Registry of Inactive Hazardous Waste Disposal Sites in New York Sites in New York 2004 – Excavation interim remedial measure (IRM) was completed within the building to address soil completed within the building to address soil contamination. 2008 IRM was completed to address residual soil 2008 - IRM was completed to address residual soil contamination and soil vapor intrusion. 2009 – Remedial Investigation and Feasibility Study

NYS Department of Environmental Conservation

2009 Remedial Investigation and Feasibility Study completed.

IRM – Soil Removal

NYS Department of Environmental Conservation

Remedial Investigation Findings

NYS Department of Environmental Conservation

Study Area

NYS Department of Environmental Conservation

NYS Department of Environmental Conservation

IRM – Soil Removal

NYS Department of Environmental Conservation

IRM - Soil Vapor Extraction System

NYS Department of Environmental Conservation

LNAPL Location

NYS Department of Environmental Conservation

Human Exposure

NYS Department of Environmental Conservation

Human Exposure Pathway:

An exposure pathway describes the An exposure pathway describes the

means by which an individual may be exposed to contaminants originating from exposed to contaminants originating from a site.

NYS Department of Environmental Conservation

Potential Site-Specific Routes of Exposure

Direct Contact (touch) Direct Contact (touch)

Ingestion (eat, drink) Inhalation (breath)

Soil Vapor Soil Vapor Intrusion (SVI)

NYS Department of Environmental Conservation

Site-Specific Complete Human Exposure Pathways:

NONE No one drinks the Groundwater No one touches Residual Soil Contamination

O ti f S il V E t ti /S b l b

Operation of Soil Vapor Extraction/Subslab

Depressurization System (SVE/SSDS) mitigates potential for SVI to impact indoor mitigates potential for SVI to impact indoor air quality

NYS Department of Environmental Conservation

Feasibility Study

NYS Department of Environmental Conservation

Feasibility Study

Th l f th f ibilit t d i t l t

• The goal of the feasibility study is to select

a remedy that would restore the site to pre- disposal conditions to the extent practical disposal conditions to the extent practical. At i i th h d h ll

• At a minimum the chosen remedy shall

eliminate or mitigate all significant threats to public health and the environment public health and the environment.

NYS Department of Environmental Conservation

Remedial Goals

Public Health Protection:

• Prevent contact and ingestion of contaminated groundwater and

soil soil

• Mitigate potential for contaminated soil vapor (from groundwater or

soil) to impact indoor air quality

Environmental Protection:

• Meet groundwater quality standards

g q y

• Prevent discharge of contaminated groundwater to surface water
• Prevent migration or uptake of soil contaminants

NYS Department of Environmental Conservation

Feasibility Study Alternatives

• Five alternatives were evaluated

– No Action (base line for comparison) – Zero-Valent Iron Permeable Reactive Barrier – In-Situ Chemical Oxidant Injection Source Area In-Situ Chemical Oxidant Injection and – Source Area In-Situ Chemical Oxidant Injection and Natural Attenuation

• Each alternative includes a system to address the LNAPL

in the groundwater and continues the operation of the SVE/SSD system, and placement of Environmental and

NYS Department of Environmental Conservation

Institutional Controls.

Feasibility Study Alternatives

Each Alternative were evaluated against 7 criteria:

– Protection of Human Health and Environment – Compliance with SCGs – Short-term Effectiveness – Long-term Effectiveness – Reduction of Toxicity, Mobility, or Volume educt o

• c ty,
• b ty, o
• u

e – Implementability – Cost Effectiveness

NYS Department of Environmental Conservation

Proposed Remedy

S A I Sit Ch i l O id t Source Area In-Situ Chemical Oxidant Injection and Natural Attenuation

NYS Department of Environmental Conservation

Injection Location Injection Location LNAPL Recovery System Natural Attenuation

NYS Department of Environmental Conservation

Next Steps

• Record Of Decision (ROD)

– Description of the Final Decision on the Remedy – Description of the Final Decision on the Remedy – Responsiveness Summary – Administrative Record

NYS Department of Environmental Conservation

Implementing the Clean-up

• Detailed Design of the Remedy
• Remedial Action (Implementation)

NYS Department of Environmental Conservation

Written PRAP Comments Send to:

Heide-Marie Dudek, P.E. NYSDEC NYSDEC Division of Environmental Remediation 625 Broadway – 11th Floor Alb N Y k 12233 7015 Albany, New York 12233-7015 Telephone (518) 402-9622 E-Mail: hmdudek@gw.dec.state.ny.us

Deadline is March 10 2010

NYS Department of Environmental Conservation

Deadline is March 10, 2010

QUESTIONS?

NYS Department of Environmental Conservation

THANK YOU FOR COMING

NYS Department of Environmental Conservation