FAIRMtg_06

							FAIR Meeting

April 6, 2006
Groundwater Results – Fall 2004




                             Benzene
                               ND
                               <5 ug/L
                               5-99 ug/L
                               100-999 ug/L
                               >1,000 ug/L
                               Product
Groundwater Results – Spring 2005




                            Benzene
                              ND
                              <5 ug/L
                              5-99 ug/L
                              100-999 ug/L
                              >1,000 ug/L
                              Product
          Groundwater Results – Fall 2005




Benzene
  ND
  <5 ug/L
  5-99 ug/L
  100-999 ug/L
                      Shading indicates area potentially
  >1,000 ug/L
                      contaminated above DEC cleanup levels based
  Product
                      on results of this sampling event.
Groundwater Results – Fall 2004




                             GRO
                                  ND
                                  <1.3 mg/L
                                  1.3-9 mg/L
                                  10-99 mg/L
                                  >100 mg/L
                                  Product
Groundwater Results – Spring 2005




                            GRO
                              ND
                              <1.3 mg/L
                              1.3-9 mg/L
                              10-99 mg/L
                              >100 mg/L
                              Product
        Groundwater Results – Fall 2005




GRO
 ND
 <1.3 mg/L
 1.3-9 mg/L
 10-99 mg/L
                    Shading indicates area potentially
 >100 mg/L          contaminated above DEC cleanup levels based
 Product            on results of this sampling event.
Groundwater Results – Fall 2004




                             DRO
                                  ND
                                  <1.5 mg/L
                                  1.5-9 mg/L
                                  10-99 mg/L
                                  >100 mg/L
                                  Product
Groundwater Results – Spring 2005




                            DRO
                              ND
                              <1.5 mg/L
                              1.5-9 mg/L
                              10-99 mg/L
                              >100 mg/L
                              Product
        Groundwater Results – Fall 2005




DRO
 ND
 <1.5 mg/L
 1.5-9 mg/L
 10-99 mg/L
                    Shading indicates area potentially
 >100 mg/L          contaminated above DEC cleanup levels based
 Product            on results of this sampling event.
Groundwater Results – Fall 2004




                             RRO
                                  ND
                                  <1.1 mg/L
                                  1.1-9 mg/L
                                  10-99 mg/L
                                  >100 mg/L
                                  Product
Groundwater Results – Spring 2005




                            RRO
                              ND
                              <1.1 mg/L
                              1.1-9 mg/L
                              10-99 mg/L
                              >100 mg/L
                              Product
       Groundwater Results – Fall 2005




RRO
 ND
 <1.1 mg/L
 1.1-9 mg/L
 10-99 mg/L
                   Shading indicates area potentially
 >100 mg/L         contaminated above DEC cleanup levels based
 Product           on results of this sampling event.
       Coordinated Sampling Plan

   Coordinating survey techniques and frequency

   Possible change in date of spring sampling event

   COCs – limited VOC list?
Current and Future Land Use Plans

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

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

     Can future building construction be restricted if
      there is a vapor intrusion threat?
Site-specific CSMs
Chevron CSM
UNOCAL CSM
Van Gas CSM
Areawide CSM
Potentially Complete Pathways

 Vapor Intrusion Pathway
 Outdoor Air Inhalation Pathway

 Incidental Ingestion and Dermal Contact with Soil
  (surface and subsurface)
        Is the soil data representative?
   Groundwater (ingestion, inhalation of volatiles, and
    dermal contact pathways)
      Is the well search complete?
      Protection of future receptors
        Institutional Control
             Discussion
Proposed Objectives
   Protect 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 Deliverables