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
NYS Department of Environmental Conservation Welcome
P Presenters t • 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 automotive repair shop and commercial (water-based) t ti i h d i l ( t b d) 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 1992 – A preliminary investigation was completed. A preliminar in estigation as 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 2008 - IRM was completed to address residual soil 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. NYS Department of Environmental Conservation
NYS Department of Environmental Conservation IRM – Soil Removal
Remedial Investigation Findings NYS Department of Environmental Conservation
Study Area NYS Department of Environmental Conservation
NYS Department of Environmental Conservation
NYS Department of Environmental Conservation IRM – Soil Removal
NYS Department of Environmental Conservation Extraction System IRM - Soil Vapor
LNAPL Location NYS Department of Environmental Conservation
NYS Department of Environmental Conservation Human Exposure
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) Potential Source NYS Department of Environmental Conservation
Site-Specific Complete Human Exposure Pathways: � NONE � No one drinks the Groundwater � No one touches Residual Soil Contamination � Operation of Soil Vapor Extraction/Subslab O ti f S il V E t ti /S b l b 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
NYS Department of Environmental Conservation Feasibility Study
Feasibility Study • The goal of the feasibility study is to select Th l f th f ibilit t d i t l t a remedy that would restore the site to pre- disposal conditions to the extent practical. disposal conditions to the extent practical • At a minimum the chosen remedy shall At i i th h d h ll 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 Institutional Controls. NYS Department of Environmental Conservation
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 o o c ty, ob ty, o o u e – Implementability – Cost Effectiveness NYS Department of Environmental Conservation
Proposed Remedy S Source Area In-Situ Chemical Oxidant A I Sit Ch i l O id t 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 – 11 th Floor Albany, New York 12233-7015 Alb N Y k 12233 7015 Telephone (518) 402-9622 E-Mail: hmdudek@gw.dec.state.ny.us Deadline is March 10 2010 Deadline is March 10, 2010 NYS Department of Environmental Conservation
NYS Department of Environmental Conservation QUESTIONS?
THANK YOU FOR COMING NYS Department of Environmental Conservation
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