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Crown DykmanCrown Dykman 66 Herb Hill Road

Proposed Clean-up PlanProposed Clean-up PlanMarch 3, 2010

presented by the New York State Department of Environmental Conservationin cooperation with

New York State Department of Health

NYS Department of Environmental Conservation

Welcome


P tPresenters

• Bill Fonda, NYSDEC

• Heide Dudek, NYSDEC

Joseph Yavonditte NYSDEC• Joseph Yavonditte, NYSDEC

• Susan Shearer, NYSDOHSusan Shearer, NYSDOH


Agenda

• Introduction – Bill Fonda

• Site History – Heide Dudeky• Remedial Investigation/Feasibility Study –

Heide Dudek and Susan Shearer

• Proposed Remedial Action Plan – Heide Dudek

• Questions – Heide Dudek, Joe Yavonditte, Bill Fonda, Susan Shearer


Citizen Participation• Complete copies of site documents and related

material are placed at the document repositories:• Glen Cove Public LibraryG 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


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


Site DescriptionSite Description• The Crown Dykman Site is located in Glen Cove at 66 HerbThe 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 areThe 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.


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 – 1992Listed as Inactive Hazardous Waste Site 1992• Primary contaminant tetrachloroethene (PCE)


Remedial Investigation1992 A preliminar in estigation as completed1992 – A preliminary investigation was completed.

This eventually led to the site being as a Class 2 sitein the Registry of Inactive Hazardous Waste Disposal Sites in New YorkSites in New York

2004 – Excavation interim remedial measure (IRM) was completed within the building to address soilcompleted within the building to address soil contamination.

2008 IRM was completed to address residual soil2008 - IRM was completed to address residual soil contamination and soil vapor intrusion.

2009 – Remedial Investigation and Feasibility Study


2009 Remedial Investigation and Feasibility Study completed.

IRM – Soil Removal


Remedial Investigation Findings


Study Area


IRM – Soil Removal


IRM - Soil Vapor Extraction System


LNAPL Location


Human Exposure


Human Exposure Pathway:

An exposure pathway describes theAn exposure pathway describes the means by which an individual may be exposed to contaminants originating fromexposed to contaminants originating from a site.


Potential Site-Specific Routes of Exposure

Direct Contact (touch)Direct Contact (touch)

Ingestion (eat, drink)Inhalation (breath)

Soil VaporSoil Vapor Intrusion (SVI)

PotentialSource


Site-Specific Complete Human Exposure Pathways:

NONENo one drinks the Groundwater

No one touches Residual Soil Contamination

O ti f S il V E t ti /S b l bOperation of Soil Vapor Extraction/Subslab Depressurization System (SVE/SSDS) mitigates potential for SVI to impact indoormitigates potential for SVI to impact indoor air quality


Feasibility Study


Feasibility StudyTh 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 practicaldisposal 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 environmentpublic health and the environment.


Remedial Goals

Public Health Protection:Prevent contact and ingestion of contaminated groundwater and soilsoilMitigate potential for contaminated soil vapor (from groundwater or soil) to impact indoor air quality

Environmental Protection:Meet groundwater quality standardsg q yPrevent discharge of contaminated groundwater to surface waterPrevent migration or uptake of soil contaminants


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


Institutional Controls.

Feasibility Study AlternativesEach 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 Volumeeduct o o o c ty, ob ty, o o u e– Implementability– Cost Effectiveness


Proposed Remedy

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


Injection LocationInjection Location

LNAPL Recovery System

Natural

Attenuation


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


Implementing the Clean-up

• Detailed Design of the Remedy

• Remedial Action (Implementation)


Written PRAP CommentsSend to:

Heide-Marie Dudek, P.E.NYSDECNYSDEC

Division of Environmental Remediation625 Broadway – 11th Floor

Alb N Y k 12233 7015Albany, New York 12233-7015

Telephone (518) 402-9622 E-Mail: [email protected]

Deadline is March 10 2010


Deadline is March 10, 2010

QUESTIONS?


THANK YOUFOR COMING


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