2.1.1    Narrative

2.1.2    Response Actions to Date

On Febraury 17,2012, OSC McAteer,and the ERRS and START contractors mobilized to the the site to begin the excavation and transportation and disposal (T&D) activities of the Libby asbestos contaminated soil identified in Grid AK-015.  By close of business (COB) on February 17, the ERRS contractor had procurred the necessary heavy equipment to excavate and load the contaminated soil for transport to the Two Pines Waste Management Landfill located in North Little Rock, AR.  The START-3 contractor mobilized to the site and collected a backfill soil sample for chemical analysis.  The backfill soil sample will be shipped to a procurred laboratory for Target Compound List (TCL) volatile organic compounds (VOCs), Semivolatile Organic Compounds (SVOCs), pesticides, herbicides, polychlorinated biphenyls (PCBs), Target Analyte List (TAL) total metals, mercury, and cyanides, and asbestos.

On February 18, 2012, the ERRS contractor began soil excavation activities in Grid AK-015.  The excavated soil was stockpiled and covered with visqueen, as there were no T&D activities conducted.  During soil excavation, ERRS conducted dust suppression activities with the use of a water truck and water hose.  Due to the moisture content of the soil, as a result of recent heavy rainfall events, the ground in the park is saturated which caused some of the heavy equipment to sink into the soft earth.  As a result, excavation activities were halted at the park until ERRS can construct a temporary roadway from Douglas Avenue to the excavation area using construction mats. Construction mats were procured; however, they were needed first at the emergency response at the nearby Redwood Early Childhood Center Asbestos removal site.  Once the reponse is completed at the school, the construction mats will be moved to the NLR-Conley Park site to complete the excavation and T&D activities.  On February 18, 2012, START-3 conducted air monitoring with a personal dataRAMs (pDRs). There were no exceedances detected during the air monitoring activities.  START-3 also collected air samples from two locations along the perimeter of the excavation area with the use of rotary vane air pumps and sampling train consisting of a 0.8 micron MCE sample cassette. The air samples were analyzed for fibers by NIOSH 7400 methodology.  

On February 20-21, 2012, the ERRS contractor began to move the temporary construction mats and heavy equipment from the Redwood Early Childhood Asbestos removal site to the NLR-Conley Park site in anticipation of continuing removal activities.  The temporary road from Douglas Avenue to the Excavation and Loading Area was constructed.

On February 22, 2012, the ERRS contractor continued and finished the excavation and loading of asbestos-contaminated soil from Grid 015.  Dust suppresion was conducted during the soil disturbing activities.  Fourteen (14) disposal trucks with a capacity of 15 cubic yards each, transported approximately 210 cubic yards of excavated soil to the Two Pines Waste Landfill located in North Little Rock, AR.  During all dirt disturbing activities, START conducted air monitoring with personal DataRAMs (pDRs).  There were no exceedances detected during the air monitoring activities.  and air sampling with rotary vane air sample pumps and sampling trains ( 0.8 micron MCE sample cassettes) at four (4) locations along the perimeter of the excavation and loading area.The air samples were analyzed for fiber determination by NIOSH 7400 methodology.

On February 23, 2012, prior to the initiation of site restoration activities, START collected one, five point composite, soil confirmation sample from the excavated grid.  The sample was shipped to the procured laboratory for asbestos identification and quantifiacation using Polarized Light Micrscopy (PLM) and Tramsmission Electron Microscopy (TEM) methodologies.  The ERRS contractor loaded one (1) disposal truck with the "used visqueen" for tranport to the Two Pines Waste Management Landfill. ERRS recieved 15 truck loads (225 cubic yards) of backfill soil from Top Quality Soils located in North Little Rock, AR, which was placed into the excavated grid, compacted, contoured, and sodded with grass.  the temporary metal fencing used as a minor containment device since Novemebr 11, 2011 was dismantled and returned to the vendor.  ERRS began to dismantle the construction mats that made up the temporary road from Douglas Avenue to the excavation and loading area.

On February 24, 2012, the ERRS contractor continued and finished the dismantling of the temporary road, backfilled, contoured, and sodded the damaged areas where the temporary road had been constructed.  Once the sod was  place, both in the excavated grid and damaged areas, ERRS began to compact and smooth the backfilled grid and damaged areas with the use of a Utility Terrain Vehicle ("Mule") and a roller filled with water.  Once all restoration activities were completed, the EPA\ERRS\STAR team demobilized from the site.