FAIR Meeting April 6, 2006

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FAIR Meeting April 6, 2006. Benzene ND 1,000 ug/L Product. Groundwater Results – Fall 2004. Benzene ND 1,000 ug/L Product. Groundwater Results – Spring 2005. Benzene ND

Transcript of FAIR Meeting April 6, 2006

FAIR MeetingFAIR Meeting

April 6, 2006April 6, 2006

Groundwater Results – Fall 2004

BenzeneND<5 ug/L5-99 ug/L100-999 ug/L>1,000 ug/LProduct

Groundwater Results – Spring 2005

BenzeneND<5 ug/L5-99 ug/L100-999 ug/L>1,000 ug/LProduct

Groundwater Results – Fall 2005

BenzeneND<5 ug/L5-99 ug/L100-999 ug/L>1,000 ug/LProduct

Shading indicates area potentially contaminated above DEC cleanup levels based on results of this sampling event.

Groundwater Results – Fall 2004

GROND<1.3 mg/L1.3-9 mg/L10-99 mg/L>100 mg/LProduct

Groundwater Results – Spring 2005

GROND<1.3 mg/L1.3-9 mg/L10-99 mg/L>100 mg/LProduct

GROND<1.3 mg/L1.3-9 mg/L10-99 mg/L>100 mg/LProduct

Groundwater Results – Fall 2005

Shading indicates area potentially contaminated above DEC cleanup levels based on results of this sampling event.

Groundwater Results – Fall 2004

DROND<1.5 mg/L1.5-9 mg/L10-99 mg/L>100 mg/LProduct

Groundwater Results – Spring 2005

DROND<1.5 mg/L1.5-9 mg/L10-99 mg/L>100 mg/LProduct

Groundwater Results – Fall 2005

DROND<1.5 mg/L1.5-9 mg/L10-99 mg/L>100 mg/LProduct

Shading indicates area potentially contaminated above DEC cleanup levels based on results of this sampling event.

RROND<1.1 mg/L1.1-9 mg/L10-99 mg/L>100 mg/LProduct

Groundwater Results – Fall 2004

RROND<1.1 mg/L1.1-9 mg/L10-99 mg/L>100 mg/LProduct

Groundwater Results – Spring 2005

RROND<1.1 mg/L1.1-9 mg/L10-99 mg/L>100 mg/LProduct

Groundwater Results – Fall 2005

Shading indicates area potentially contaminated above DEC cleanup levels based on results of this sampling event.

Coordinated Sampling PlanCoordinated Sampling Plan

Coordinating survey techniques and Coordinating survey techniques and frequencyfrequency

Possible change in date of spring Possible change in date of spring sampling eventsampling event

COCs – limited VOC list?COCs – limited VOC list?

Current and Future Land Current and Future Land Use PlansUse Plans

Are commercial vs. residential cleanup Are commercial vs. residential cleanup levels appropriate for this area?levels appropriate for this area?

Can groundwater use restrictions be Can groundwater use restrictions be enforced as an institutional control?enforced as an institutional control?

Can future building construction be Can future building construction be restricted if there is a vapor intrusion restricted if there is a vapor intrusion threat?threat?

Site-specific CSMsSite-specific CSMs

Chevron CSMChevron CSM

UNOCAL CSMUNOCAL CSM

Van Gas CSMVan Gas CSM

Areawide CSMAreawide CSM

Potentially Complete Potentially Complete PathwaysPathways

Vapor Intrusion PathwayVapor Intrusion Pathway Outdoor Air Inhalation PathwayOutdoor Air Inhalation Pathway Incidental Ingestion and Dermal Incidental Ingestion and Dermal

Contact with Soil (surface and Contact with Soil (surface and subsurface)subsurface) Is the soil data representative?Is the soil data representative?

Groundwater (ingestion, inhalation of Groundwater (ingestion, inhalation of volatiles, and dermal contact pathways)volatiles, and dermal contact pathways) Is the well search complete? Is the well search complete? Protection of future receptorsProtection of future receptors

Institutional Control Institutional Control DiscussionDiscussion

Proposed ObjectivesProtect workers and visitors from contact with contaminated soil and inhalation of vapors.Prevent workers from using contaminated groundwater.Prevent residential use of these properties.

2007 Deliverables2007 Deliverables