FINAL SITE INSPECTION REPORT

13858.0 Demolition Area No. 2138613871388138913901391139213931394139513961397139813991400140114021403140414051406140714081409141014111412141314141415141614178.1 History and Land UseDemolition Area No. 2 was identified during the TPP meeting. The identification was madethrough interviews with a property leaseholder (The Nature Conservancy) and the Oregon StatePolice. The AOC consists of a number of detonation craters with MD (Figure 8-1). Munitions,fuzes, and MD were recently destroyed by the Oregon State Police at this AOC.Little is known of the Demolition Area No. 2 AOC and who used it. The area appears to havebeen used as an ordnance disposal/demolition area. Note that the boundary for Demolition AreaNo. 2 is dashed because the extent of the AOC has not been verified (Figure 8-1). The dashedboundary does include extent of demolition craters observed on aerial photography. Nogroundwater wells are located within the boundary of this AOC. The land is currently used as awildlife conservation area. Future land is expected to remain the same as current land use.8.2 Previous InvestigationsNo previous investigations have been completed at this AOC.8.3 MEC EvaluationMunitions identified as having been present at the Demolition Area No. 2 include: M83 Butterflybombs, M66 base detonator fuzes, 100-lb GP bomb base plate, C-4 blocks, detonation cord andtime blasting fuze, and blasting caps (both electric and non-electric). Other munitions may havebeen destroyed at this site. All of the above munitions have sensitive explosive componentsexcept for the C-4 blocks.8.3.1 Field Observations and Historical Evidence of MECA visual reconnaissance with the aid of an all metal detector for safety was completed as part ofthe SI field activities. The path of the visual reconnaissance is shown on Figure 8-1. The UXOtechnician reported that large accumulations of MD were observed, including heavy wallfragments. No MEC was identified.Debris from munitions was privately located by employees of The Nature Conservancy whomanage a portion of land for critical wildlife habitat and Oregon State Police EOD unit. In June2006 ordnance disposal of an M83 Butterfly bomb was completed by the Oregon State Police.8.3.2 MEC Risk AssessmentThe following section presents a qualitative assessment of the risk associated with potentialMEC, as based on historical documentation and SI field work. A MEC assessment is provided toconvey relative risk on a scale from low to high and is not intended to be a thorough riskassessment as would be conducted for an RI/FS.Boardman AFR Final SI Report.doc 8-1 Contract No. W912DY-04-D-0010 Delivery Order No. 003September 2007